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source: vbox/trunk/src/libs/openssl-1.1.1l/apps/s_client.c@ 92376

Last change on this file since 92376 was 91772, checked in by vboxsync, 3 years ago

openssl-1.1.1l: Applied and adjusted our OpenSSL changes to 1.1.1l. bugref:10126
File size: 115.1 KB
Line 
1/*
2 * Copyright 1995-2020 The OpenSSL Project Authors. All Rights Reserved.
3 * Copyright 2005 Nokia. All rights reserved.
4 *
5 * Licensed under the OpenSSL license (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
9 */
10
11#include "e_os.h"
12#include <ctype.h>
13#include <stdio.h>
14#include <stdlib.h>
15#include <string.h>
16#include <errno.h>
17#include <openssl/e_os2.h>
18
19#ifndef OPENSSL_NO_SOCK
20
21/*
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
26 */
27#if defined(OPENSSL_SYS_VMS_DECC) && !defined(__U_INT)
28# define __U_INT
29typedef unsigned int u_int;
30#endif
31
32#include "apps.h"
33#include "progs.h"
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>
44#endif
45#ifndef OPENSSL_NO_CT
46# include <openssl/ct.h>
47#endif
48#include "s_apps.h"
49#include "timeouts.h"
50#include "internal/sockets.h"
51
52#if defined(__has_feature)
53# if __has_feature(memory_sanitizer)
54# include <sanitizer/msan_interface.h>
55# endif
56#endif
57
58#undef BUFSIZZ
59#define BUFSIZZ 1024*8
60#define S_CLIENT_IRC_READ_TIMEOUT 8
61
62static char *prog;
63static int c_debug = 0;
64static int c_showcerts = 0;
65static char *keymatexportlabel = NULL;
66static int keymatexportlen = 20;
67static BIO *bio_c_out = NULL;
68static int c_quiet = 0;
69static char *sess_out = NULL;
70static SSL_SESSION *psksess = NULL;
71
72static void print_stuff(BIO *berr, SSL *con, int full);
73#ifndef OPENSSL_NO_OCSP
74static int ocsp_resp_cb(SSL *s, void *arg);
75#endif
76static int ldap_ExtendedResponse_parse(const char *buf, long rem);
77static int is_dNS_name(const char *host);
78
79static int saved_errno;
80
81static void save_errno(void)
82{
83 saved_errno = errno;
84 errno = 0;
85}
86
87static int restore_errno(void)
88{
89 int ret = errno;
90 errno = saved_errno;
91 return ret;
92}
93
94static void do_ssl_shutdown(SSL *ssl)
95{
96 int ret;
97
98 do {
99 /* We only do unidirectional shutdown */
100 ret = SSL_shutdown(ssl);
101 if (ret < 0) {
102 switch (SSL_get_error(ssl, ret)) {
103 case SSL_ERROR_WANT_READ:
104 case SSL_ERROR_WANT_WRITE:
105 case SSL_ERROR_WANT_ASYNC:
106 case SSL_ERROR_WANT_ASYNC_JOB:
107 /* We just do busy waiting. Nothing clever */
108 continue;
109 }
110 ret = 0;
111 }
112 } while (ret < 0);
113}
114
115/* Default PSK identity and key */
116static char *psk_identity = "Client_identity";
117
118#ifndef OPENSSL_NO_PSK
119static unsigned int psk_client_cb(SSL *ssl, const char *hint, char *identity,
120 unsigned int max_identity_len,
121 unsigned char *psk,
122 unsigned int max_psk_len)
123{
124 int ret;
125 long key_len;
126 unsigned char *key;
127
128 if (c_debug)
129 BIO_printf(bio_c_out, "psk_client_cb\n");
130 if (!hint) {
131 /* no ServerKeyExchange message */
132 if (c_debug)
133 BIO_printf(bio_c_out,
134 "NULL received PSK identity hint, continuing anyway\n");
135 } else if (c_debug) {
136 BIO_printf(bio_c_out, "Received PSK identity hint '%s'\n", hint);
137 }
138
139 /*
140 * lookup PSK identity and PSK key based on the given identity hint here
141 */
142 ret = BIO_snprintf(identity, max_identity_len, "%s", psk_identity);
143 if (ret < 0 || (unsigned int)ret > max_identity_len)
144 goto out_err;
145 if (c_debug)
146 BIO_printf(bio_c_out, "created identity '%s' len=%d\n", identity,
147 ret);
148
149 /* convert the PSK key to binary */
150 key = OPENSSL_hexstr2buf(psk_key, &key_len);
151 if (key == NULL) {
152 BIO_printf(bio_err, "Could not convert PSK key '%s' to buffer\n",
153 psk_key);
154 return 0;
155 }
156 if (max_psk_len > INT_MAX || key_len > (long)max_psk_len) {
157 BIO_printf(bio_err,
158 "psk buffer of callback is too small (%d) for key (%ld)\n",
159 max_psk_len, key_len);
160 OPENSSL_free(key);
161 return 0;
162 }
163
164 memcpy(psk, key, key_len);
165 OPENSSL_free(key);
166
167 if (c_debug)
168 BIO_printf(bio_c_out, "created PSK len=%ld\n", key_len);
169
170 return key_len;
171 out_err:
172 if (c_debug)
173 BIO_printf(bio_err, "Error in PSK client callback\n");
174 return 0;
175}
176#endif
177
178const unsigned char tls13_aes128gcmsha256_id[] = { 0x13, 0x01 };
179const unsigned char tls13_aes256gcmsha384_id[] = { 0x13, 0x02 };
180
181static int psk_use_session_cb(SSL *s, const EVP_MD *md,
182 const unsigned char **id, size_t *idlen,
183 SSL_SESSION **sess)
184{
185 SSL_SESSION *usesess = NULL;
186 const SSL_CIPHER *cipher = NULL;
187
188 if (psksess != NULL) {
189 SSL_SESSION_up_ref(psksess);
190 usesess = psksess;
191 } else {
192 long key_len;
193 unsigned char *key = OPENSSL_hexstr2buf(psk_key, &key_len);
194
195 if (key == NULL) {
196 BIO_printf(bio_err, "Could not convert PSK key '%s' to buffer\n",
197 psk_key);
198 return 0;
199 }
200
201 /* We default to SHA-256 */
202 cipher = SSL_CIPHER_find(s, tls13_aes128gcmsha256_id);
203 if (cipher == NULL) {
204 BIO_printf(bio_err, "Error finding suitable ciphersuite\n");
205 OPENSSL_free(key);
206 return 0;
207 }
208
209 usesess = SSL_SESSION_new();
210 if (usesess == NULL
211 || !SSL_SESSION_set1_master_key(usesess, key, key_len)
212 || !SSL_SESSION_set_cipher(usesess, cipher)
213 || !SSL_SESSION_set_protocol_version(usesess, TLS1_3_VERSION)) {
214 OPENSSL_free(key);
215 goto err;
216 }
217 OPENSSL_free(key);
218 }
219
220 cipher = SSL_SESSION_get0_cipher(usesess);
221 if (cipher == NULL)
222 goto err;
223
224 if (md != NULL && SSL_CIPHER_get_handshake_digest(cipher) != md) {
225 /* PSK not usable, ignore it */
226 *id = NULL;
227 *idlen = 0;
228 *sess = NULL;
229 SSL_SESSION_free(usesess);
230 } else {
231 *sess = usesess;
232 *id = (unsigned char *)psk_identity;
233 *idlen = strlen(psk_identity);
234 }
235
236 return 1;
237
238 err:
239 SSL_SESSION_free(usesess);
240 return 0;
241}
242
243/* This is a context that we pass to callbacks */
244typedef struct tlsextctx_st {
245 BIO *biodebug;
246 int ack;
247} tlsextctx;
248
249static int ssl_servername_cb(SSL *s, int *ad, void *arg)
250{
251 tlsextctx *p = (tlsextctx *) arg;
252 const char *hn = SSL_get_servername(s, TLSEXT_NAMETYPE_host_name);
253 if (SSL_get_servername_type(s) != -1)
254 p->ack = !SSL_session_reused(s) && hn != NULL;
255 else
256 BIO_printf(bio_err, "Can't use SSL_get_servername\n");
257
258 return SSL_TLSEXT_ERR_OK;
259}
260
261#ifndef OPENSSL_NO_SRP
262
263/* This is a context that we pass to all callbacks */
264typedef struct srp_arg_st {
265 char *srppassin;
266 char *srplogin;
267 int msg; /* copy from c_msg */
268 int debug; /* copy from c_debug */
269 int amp; /* allow more groups */
270 int strength; /* minimal size for N */
271} SRP_ARG;
272
273# define SRP_NUMBER_ITERATIONS_FOR_PRIME 64
274
275static int srp_Verify_N_and_g(const BIGNUM *N, const BIGNUM *g)
276{
277 BN_CTX *bn_ctx = BN_CTX_new();
278 BIGNUM *p = BN_new();
279 BIGNUM *r = BN_new();
280 int ret =
281 g != NULL && N != NULL && bn_ctx != NULL && BN_is_odd(N) &&
282 BN_is_prime_ex(N, SRP_NUMBER_ITERATIONS_FOR_PRIME, bn_ctx, NULL) == 1 &&
283 p != NULL && BN_rshift1(p, N) &&
284 /* p = (N-1)/2 */
285 BN_is_prime_ex(p, SRP_NUMBER_ITERATIONS_FOR_PRIME, bn_ctx, NULL) == 1 &&
286 r != NULL &&
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;
290
291 BN_free(r);
292 BN_free(p);
293 BN_CTX_free(bn_ctx);
294 return ret;
295}
296
297/*-
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.
302 *
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.
311 */
312
313static int ssl_srp_verify_param_cb(SSL *s, void *arg)
314{
315 SRP_ARG *srp_arg = (SRP_ARG *)arg;
316 BIGNUM *N = NULL, *g = NULL;
317
318 if (((N = SSL_get_srp_N(s)) == NULL) || ((g = SSL_get_srp_g(s)) == NULL))
319 return 0;
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");
327 }
328
329 if (SRP_check_known_gN_param(g, N))
330 return 1;
331
332 if (srp_arg->amp == 1) {
333 if (srp_arg->debug)
334 BIO_printf(bio_err,
335 "SRP param N and g are not known params, going to check deeper.\n");
336
337 /*
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.
341 */
342 if (BN_num_bits(g) <= BN_BITS && srp_Verify_N_and_g(N, g))
343 return 1;
344 }
345 BIO_printf(bio_err, "SRP param N and g rejected.\n");
346 return 0;
347}
348
349# define PWD_STRLEN 1024
350
351static char *ssl_give_srp_client_pwd_cb(SSL *s, void *arg)
352{
353 SRP_ARG *srp_arg = (SRP_ARG *)arg;
354 char *pass = app_malloc(PWD_STRLEN + 1, "SRP password buffer");
355 PW_CB_DATA cb_tmp;
356 int l;
357
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");
362 OPENSSL_free(pass);
363 return NULL;
364 }
365 *(pass + l) = '\0';
366
367 return pass;
368}
369
370#endif
371
372#ifndef OPENSSL_NO_NEXTPROTONEG
373/* This the context that we pass to next_proto_cb */
374typedef struct tlsextnextprotoctx_st {
375 unsigned char *data;
376 size_t len;
377 int status;
378} tlsextnextprotoctx;
379
380static tlsextnextprotoctx next_proto;
381
382static int next_proto_cb(SSL *s, unsigned char **out, unsigned char *outlen,
383 const unsigned char *in, unsigned int inlen,
384 void *arg)
385{
386 tlsextnextprotoctx *ctx = arg;
387
388 if (!c_quiet) {
389 /* We can assume that |in| is syntactically valid. */
390 unsigned i;
391 BIO_printf(bio_c_out, "Protocols advertised by server: ");
392 for (i = 0; i < inlen;) {
393 if (i)
394 BIO_write(bio_c_out, ", ", 2);
395 BIO_write(bio_c_out, &in[i + 1], in[i]);
396 i += in[i] + 1;
397 }
398 BIO_write(bio_c_out, "\n", 1);
399 }
400
401 ctx->status =
402 SSL_select_next_proto(out, outlen, in, inlen, ctx->data, ctx->len);
403 return SSL_TLSEXT_ERR_OK;
404}
405#endif /* ndef OPENSSL_NO_NEXTPROTONEG */
406
407static int serverinfo_cli_parse_cb(SSL *s, unsigned int ext_type,
408 const unsigned char *in, size_t inlen,
409 int *al, void *arg)
410{
411 char pem_name[100];
412 unsigned char ext_buf[4 + 65536];
413
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);
421
422 BIO_snprintf(pem_name, sizeof(pem_name), "SERVERINFO FOR EXTENSION %d",
423 ext_type);
424 PEM_write_bio(bio_c_out, pem_name, "", ext_buf, 4 + inlen);
425 return 1;
426}
427
428/*
429 * Hex decoder that tolerates optional whitespace. Returns number of bytes
430 * produced, advances inptr to end of input string.
431 */
432static ossl_ssize_t hexdecode(const char **inptr, void *result)
433{
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;
438 uint8_t byte;
439 int nibble = 0;
440
441 if (ret == NULL)
442 return -1;
443
444 for (byte = 0; *in; ++in) {
445 int x;
446
447 if (isspace(_UC(*in)))
448 continue;
449 x = OPENSSL_hexchar2int(*in);
450 if (x < 0) {
451 OPENSSL_free(ret);
452 return 0;
453 }
454 byte |= (char)x;
455 if ((nibble ^= 1) == 0) {
456 *cp++ = byte;
457 byte = 0;
458 } else {
459 byte <<= 4;
460 }
461 }
462 if (nibble != 0) {
463 OPENSSL_free(ret);
464 return 0;
465 }
466 *inptr = in;
467
468 return cp - (*out = ret);
469}
470
471/*
472 * Decode unsigned 0..255, returns 1 on success, <= 0 on failure. Advances
473 * inptr to next field skipping leading whitespace.
474 */
475static ossl_ssize_t checked_uint8(const char **inptr, void *out)
476{
477 uint8_t *result = (uint8_t *)out;
478 const char *in = *inptr;
479 char *endp;
480 long v;
481 int e;
482
483 save_errno();
484 v = strtol(in, &endp, 10);
485 e = restore_errno();
486
487 if (((v == LONG_MIN || v == LONG_MAX) && e == ERANGE) ||
488 endp == in || !isspace(_UC(*endp)) ||
489 v != (*result = (uint8_t) v)) {
490 return -1;
491 }
492 for (in = endp; isspace(_UC(*in)); ++in)
493 continue;
494
495 *inptr = in;
496 return 1;
497}
498
499struct tlsa_field {
500 void *var;
501 const char *name;
502 ossl_ssize_t (*parser)(const char **, void *);
503};
504
505static int tlsa_import_rr(SSL *con, const char *rrdata)
506{
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 },
517 { NULL, }
518 };
519 struct tlsa_field *f;
520 int ret;
521 const char *cp = rrdata;
522 ossl_ssize_t len = 0;
523
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);
529 return 0;
530 }
531 }
532 /* The data field is last, so len is its length */
533 ret = SSL_dane_tlsa_add(con, usage, selector, mtype, data, len);
534 OPENSSL_free(data);
535
536 if (ret == 0) {
537 ERR_print_errors(bio_err);
538 BIO_printf(bio_err, "%s: warning: unusable TLSA rrdata: %s\n",
539 prog, rrdata);
540 return 0;
541 }
542 if (ret < 0) {
543 ERR_print_errors(bio_err);
544 BIO_printf(bio_err, "%s: warning: error loading TLSA rrdata: %s\n",
545 prog, rrdata);
546 return 0;
547 }
548 return ret;
549}
550
551static int tlsa_import_rrset(SSL *con, STACK_OF(OPENSSL_STRING) *rrset)
552{
553 int num = sk_OPENSSL_STRING_num(rrset);
554 int count = 0;
555 int i;
556
557 for (i = 0; i < num; ++i) {
558 char *rrdata = sk_OPENSSL_STRING_value(rrset, i);
559 if (tlsa_import_rr(con, rrdata) > 0)
560 ++count;
561 }
562 return count > 0;
563}
564
565typedef 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,
579 OPT_SRP_MOREGROUPS,
580#endif
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_CAPATH, OPT_NOCAPATH, OPT_CHAINCAPATH, OPT_VERIFYCAPATH,
585 OPT_KEY, OPT_RECONNECT, OPT_BUILD_CHAIN, OPT_CAFILE, OPT_NOCAFILE,
586 OPT_CHAINCAFILE, OPT_VERIFYCAFILE, OPT_NEXTPROTONEG, OPT_ALPN,
587 OPT_SERVERINFO, OPT_STARTTLS, OPT_SERVERNAME, OPT_NOSERVERNAME, OPT_ASYNC,
588 OPT_USE_SRTP, OPT_KEYMATEXPORT, OPT_KEYMATEXPORTLEN, OPT_PROTOHOST,
589 OPT_MAXFRAGLEN, OPT_MAX_SEND_FRAG, OPT_SPLIT_SEND_FRAG, OPT_MAX_PIPELINES,
590 OPT_READ_BUF, OPT_KEYLOG_FILE, OPT_EARLY_DATA, OPT_REQCAFILE,
591 OPT_V_ENUM,
592 OPT_X_ENUM,
593 OPT_S_ENUM,
594 OPT_FALLBACKSCSV, OPT_NOCMDS, OPT_PROXY, OPT_DANE_TLSA_DOMAIN,
595#ifndef OPENSSL_NO_CT
596 OPT_CT, OPT_NOCT, OPT_CTLOG_FILE,
597#endif
598 OPT_DANE_TLSA_RRDATA, OPT_DANE_EE_NO_NAME,
599 OPT_ENABLE_PHA,
600 OPT_SCTP_LABEL_BUG,
601 OPT_R_ENUM
602} OPTION_CHOICE;
603
604const OPTIONS s_client_options[] = {
605 {"help", OPT_HELP, '-', "Display this summary"},
606 {"host", OPT_HOST, 's', "Use -connect instead"},
607 {"port", OPT_PORT, 'p', "Use -connect instead"},
608 {"connect", OPT_CONNECT, 's',
609 "TCP/IP where to connect (default is :" PORT ")"},
610 {"bind", OPT_BIND, 's', "bind local address for connection"},
611 {"proxy", OPT_PROXY, 's',
612 "Connect to via specified proxy to the real server"},
613#ifdef AF_UNIX
614 {"unix", OPT_UNIX, 's', "Connect over the specified Unix-domain socket"},
615#endif
616 {"4", OPT_4, '-', "Use IPv4 only"},
617#ifdef AF_INET6
618 {"6", OPT_6, '-', "Use IPv6 only"},
619#endif
620 {"verify", OPT_VERIFY, 'p', "Turn on peer certificate verification"},
621 {"cert", OPT_CERT, '<', "Certificate file to use, PEM format assumed"},
622 {"certform", OPT_CERTFORM, 'F',
623 "Certificate format (PEM or DER) PEM default"},
624 {"nameopt", OPT_NAMEOPT, 's', "Various certificate name options"},
625 {"key", OPT_KEY, 's', "Private key file to use, if not in -cert file"},
626 {"keyform", OPT_KEYFORM, 'E', "Key format (PEM, DER or engine) PEM default"},
627 {"pass", OPT_PASS, 's', "Private key file pass phrase source"},
628 {"CApath", OPT_CAPATH, '/', "PEM format directory of CA's"},
629 {"CAfile", OPT_CAFILE, '<', "PEM format file of CA's"},
630 {"no-CAfile", OPT_NOCAFILE, '-',
631 "Do not load the default certificates file"},
632 {"no-CApath", OPT_NOCAPATH, '-',
633 "Do not load certificates from the default certificates directory"},
634 {"requestCAfile", OPT_REQCAFILE, '<',
635 "PEM format file of CA names to send to the server"},
636 {"dane_tlsa_domain", OPT_DANE_TLSA_DOMAIN, 's', "DANE TLSA base domain"},
637 {"dane_tlsa_rrdata", OPT_DANE_TLSA_RRDATA, 's',
638 "DANE TLSA rrdata presentation form"},
639 {"dane_ee_no_namechecks", OPT_DANE_EE_NO_NAME, '-',
640 "Disable name checks when matching DANE-EE(3) TLSA records"},
641 {"reconnect", OPT_RECONNECT, '-',
642 "Drop and re-make the connection with the same Session-ID"},
643 {"showcerts", OPT_SHOWCERTS, '-',
644 "Show all certificates sent by the server"},
645 {"debug", OPT_DEBUG, '-', "Extra output"},
646 {"msg", OPT_MSG, '-', "Show protocol messages"},
647 {"msgfile", OPT_MSGFILE, '>',
648 "File to send output of -msg or -trace, instead of stdout"},
649 {"nbio_test", OPT_NBIO_TEST, '-', "More ssl protocol testing"},
650 {"state", OPT_STATE, '-', "Print the ssl states"},
651 {"crlf", OPT_CRLF, '-', "Convert LF from terminal into CRLF"},
652 {"quiet", OPT_QUIET, '-', "No s_client output"},
653 {"ign_eof", OPT_IGN_EOF, '-', "Ignore input eof (default when -quiet)"},
654 {"no_ign_eof", OPT_NO_IGN_EOF, '-', "Don't ignore input eof"},
655 {"starttls", OPT_STARTTLS, 's',
656 "Use the appropriate STARTTLS command before starting TLS"},
657 {"xmpphost", OPT_XMPPHOST, 's',
658 "Alias of -name option for \"-starttls xmpp[-server]\""},
659 OPT_R_OPTIONS,
660 {"sess_out", OPT_SESS_OUT, '>', "File to write SSL session to"},
661 {"sess_in", OPT_SESS_IN, '<', "File to read SSL session from"},
662#ifndef OPENSSL_NO_SRTP
663 {"use_srtp", OPT_USE_SRTP, 's',
664 "Offer SRTP key management with a colon-separated profile list"},
665#endif
666 {"keymatexport", OPT_KEYMATEXPORT, 's',
667 "Export keying material using label"},
668 {"keymatexportlen", OPT_KEYMATEXPORTLEN, 'p',
669 "Export len bytes of keying material (default 20)"},
670 {"maxfraglen", OPT_MAXFRAGLEN, 'p',
671 "Enable Maximum Fragment Length Negotiation (len values: 512, 1024, 2048 and 4096)"},
672 {"fallback_scsv", OPT_FALLBACKSCSV, '-', "Send the fallback SCSV"},
673 {"name", OPT_PROTOHOST, 's',
674 "Hostname to use for \"-starttls lmtp\", \"-starttls smtp\" or \"-starttls xmpp[-server]\""},
675 {"CRL", OPT_CRL, '<', "CRL file to use"},
676 {"crl_download", OPT_CRL_DOWNLOAD, '-', "Download CRL from distribution points"},
677 {"CRLform", OPT_CRLFORM, 'F', "CRL format (PEM or DER) PEM is default"},
678 {"verify_return_error", OPT_VERIFY_RET_ERROR, '-',
679 "Close connection on verification error"},
680 {"verify_quiet", OPT_VERIFY_QUIET, '-', "Restrict verify output to errors"},
681 {"brief", OPT_BRIEF, '-',
682 "Restrict output to brief summary of connection parameters"},
683 {"prexit", OPT_PREXIT, '-',
684 "Print session information when the program exits"},
685 {"security_debug", OPT_SECURITY_DEBUG, '-',
686 "Enable security debug messages"},
687 {"security_debug_verbose", OPT_SECURITY_DEBUG_VERBOSE, '-',
688 "Output more security debug output"},
689 {"cert_chain", OPT_CERT_CHAIN, '<',
690 "Certificate chain file (in PEM format)"},
691 {"chainCApath", OPT_CHAINCAPATH, '/',
692 "Use dir as certificate store path to build CA certificate chain"},
693 {"verifyCApath", OPT_VERIFYCAPATH, '/',
694 "Use dir as certificate store path to verify CA certificate"},
695 {"build_chain", OPT_BUILD_CHAIN, '-', "Build certificate chain"},
696 {"chainCAfile", OPT_CHAINCAFILE, '<',
697 "CA file for certificate chain (PEM format)"},
698 {"verifyCAfile", OPT_VERIFYCAFILE, '<',
699 "CA file for certificate verification (PEM format)"},
700 {"nocommands", OPT_NOCMDS, '-', "Do not use interactive command letters"},
701 {"servername", OPT_SERVERNAME, 's',
702 "Set TLS extension servername (SNI) in ClientHello (default)"},
703 {"noservername", OPT_NOSERVERNAME, '-',
704 "Do not send the server name (SNI) extension in the ClientHello"},
705 {"tlsextdebug", OPT_TLSEXTDEBUG, '-',
706 "Hex dump of all TLS extensions received"},
707#ifndef OPENSSL_NO_OCSP
708 {"status", OPT_STATUS, '-', "Request certificate status from server"},
709#endif
710 {"serverinfo", OPT_SERVERINFO, 's',
711 "types Send empty ClientHello extensions (comma-separated numbers)"},
712 {"alpn", OPT_ALPN, 's',
713 "Enable ALPN extension, considering named protocols supported (comma-separated list)"},
714 {"async", OPT_ASYNC, '-', "Support asynchronous operation"},
715 {"ssl_config", OPT_SSL_CONFIG, 's', "Use specified configuration file"},
716 {"max_send_frag", OPT_MAX_SEND_FRAG, 'p', "Maximum Size of send frames "},
717 {"split_send_frag", OPT_SPLIT_SEND_FRAG, 'p',
718 "Size used to split data for encrypt pipelines"},
719 {"max_pipelines", OPT_MAX_PIPELINES, 'p',
720 "Maximum number of encrypt/decrypt pipelines to be used"},
721 {"read_buf", OPT_READ_BUF, 'p',
722 "Default read buffer size to be used for connections"},
723 OPT_S_OPTIONS,
724 OPT_V_OPTIONS,
725 OPT_X_OPTIONS,
726#ifndef OPENSSL_NO_SSL3
727 {"ssl3", OPT_SSL3, '-', "Just use SSLv3"},
728#endif
729#ifndef OPENSSL_NO_TLS1
730 {"tls1", OPT_TLS1, '-', "Just use TLSv1"},
731#endif
732#ifndef OPENSSL_NO_TLS1_1
733 {"tls1_1", OPT_TLS1_1, '-', "Just use TLSv1.1"},
734#endif
735#ifndef OPENSSL_NO_TLS1_2
736 {"tls1_2", OPT_TLS1_2, '-', "Just use TLSv1.2"},
737#endif
738#ifndef OPENSSL_NO_TLS1_3
739 {"tls1_3", OPT_TLS1_3, '-', "Just use TLSv1.3"},
740#endif
741#ifndef OPENSSL_NO_DTLS
742 {"dtls", OPT_DTLS, '-', "Use any version of DTLS"},
743 {"timeout", OPT_TIMEOUT, '-',
744 "Enable send/receive timeout on DTLS connections"},
745 {"mtu", OPT_MTU, 'p', "Set the link layer MTU"},
746#endif
747#ifndef OPENSSL_NO_DTLS1
748 {"dtls1", OPT_DTLS1, '-', "Just use DTLSv1"},
749#endif
750#ifndef OPENSSL_NO_DTLS1_2
751 {"dtls1_2", OPT_DTLS1_2, '-', "Just use DTLSv1.2"},
752#endif
753#ifndef OPENSSL_NO_SCTP
754 {"sctp", OPT_SCTP, '-', "Use SCTP"},
755 {"sctp_label_bug", OPT_SCTP_LABEL_BUG, '-', "Enable SCTP label length bug"},
756#endif
757#ifndef OPENSSL_NO_SSL_TRACE
758 {"trace", OPT_TRACE, '-', "Show trace output of protocol messages"},
759#endif
760#ifdef WATT32
761 {"wdebug", OPT_WDEBUG, '-', "WATT-32 tcp debugging"},
762#endif
763 {"nbio", OPT_NBIO, '-', "Use non-blocking IO"},
764 {"psk_identity", OPT_PSK_IDENTITY, 's', "PSK identity"},
765 {"psk", OPT_PSK, 's', "PSK in hex (without 0x)"},
766 {"psk_session", OPT_PSK_SESS, '<', "File to read PSK SSL session from"},
767#ifndef OPENSSL_NO_SRP
768 {"srpuser", OPT_SRPUSER, 's', "SRP authentication for 'user'"},
769 {"srppass", OPT_SRPPASS, 's', "Password for 'user'"},
770 {"srp_lateuser", OPT_SRP_LATEUSER, '-',
771 "SRP username into second ClientHello message"},
772 {"srp_moregroups", OPT_SRP_MOREGROUPS, '-',
773 "Tolerate other than the known g N values."},
774 {"srp_strength", OPT_SRP_STRENGTH, 'p', "Minimal length in bits for N"},
775#endif
776#ifndef OPENSSL_NO_NEXTPROTONEG
777 {"nextprotoneg", OPT_NEXTPROTONEG, 's',
778 "Enable NPN extension, considering named protocols supported (comma-separated list)"},
779#endif
780#ifndef OPENSSL_NO_ENGINE
781 {"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"},
782 {"ssl_client_engine", OPT_SSL_CLIENT_ENGINE, 's',
783 "Specify engine to be used for client certificate operations"},
784#endif
785#ifndef OPENSSL_NO_CT
786 {"ct", OPT_CT, '-', "Request and parse SCTs (also enables OCSP stapling)"},
787 {"noct", OPT_NOCT, '-', "Do not request or parse SCTs (default)"},
788 {"ctlogfile", OPT_CTLOG_FILE, '<', "CT log list CONF file"},
789#endif
790 {"keylogfile", OPT_KEYLOG_FILE, '>', "Write TLS secrets to file"},
791 {"early_data", OPT_EARLY_DATA, '<', "File to send as early data"},
792 {"enable_pha", OPT_ENABLE_PHA, '-', "Enable post-handshake-authentication"},
793 {NULL, OPT_EOF, 0x00, NULL}
794};
795
796typedef enum PROTOCOL_choice {
797 PROTO_OFF,
798 PROTO_SMTP,
799 PROTO_POP3,
800 PROTO_IMAP,
801 PROTO_FTP,
802 PROTO_TELNET,
803 PROTO_XMPP,
804 PROTO_XMPP_SERVER,
805 PROTO_CONNECT,
806 PROTO_IRC,
807 PROTO_MYSQL,
808 PROTO_POSTGRES,
809 PROTO_LMTP,
810 PROTO_NNTP,
811 PROTO_SIEVE,
812 PROTO_LDAP
813} PROTOCOL_CHOICE;
814
815static const OPT_PAIR services[] = {
816 {"smtp", PROTO_SMTP},
817 {"pop3", PROTO_POP3},
818 {"imap", PROTO_IMAP},
819 {"ftp", PROTO_FTP},
820 {"xmpp", PROTO_XMPP},
821 {"xmpp-server", PROTO_XMPP_SERVER},
822 {"telnet", PROTO_TELNET},
823 {"irc", PROTO_IRC},
824 {"mysql", PROTO_MYSQL},
825 {"postgres", PROTO_POSTGRES},
826 {"lmtp", PROTO_LMTP},
827 {"nntp", PROTO_NNTP},
828 {"sieve", PROTO_SIEVE},
829 {"ldap", PROTO_LDAP},
830 {NULL, 0}
831};
832
833#define IS_INET_FLAG(o) \
834 (o == OPT_4 || o == OPT_6 || o == OPT_HOST || o == OPT_PORT || o == OPT_CONNECT)
835#define IS_UNIX_FLAG(o) (o == OPT_UNIX)
836
837#define IS_PROT_FLAG(o) \
838 (o == OPT_SSL3 || o == OPT_TLS1 || o == OPT_TLS1_1 || o == OPT_TLS1_2 \
839 || o == OPT_TLS1_3 || o == OPT_DTLS || o == OPT_DTLS1 || o == OPT_DTLS1_2)
840
841/* Free |*dest| and optionally set it to a copy of |source|. */
842static void freeandcopy(char **dest, const char *source)
843{
844 OPENSSL_free(*dest);
845 *dest = NULL;
846 if (source != NULL)
847 *dest = OPENSSL_strdup(source);
848}
849
850static int new_session_cb(SSL *s, SSL_SESSION *sess)
851{
852
853 if (sess_out != NULL) {
854 BIO *stmp = BIO_new_file(sess_out, "w");
855
856 if (stmp == NULL) {
857 BIO_printf(bio_err, "Error writing session file %s\n", sess_out);
858 } else {
859 PEM_write_bio_SSL_SESSION(stmp, sess);
860 BIO_free(stmp);
861 }
862 }
863
864 /*
865 * Session data gets dumped on connection for TLSv1.2 and below, and on
866 * arrival of the NewSessionTicket for TLSv1.3.
867 */
868 if (SSL_version(s) == TLS1_3_VERSION) {
869 BIO_printf(bio_c_out,
870 "---\nPost-Handshake New Session Ticket arrived:\n");
871 SSL_SESSION_print(bio_c_out, sess);
872 BIO_printf(bio_c_out, "---\n");
873 }
874
875 /*
876 * We always return a "fail" response so that the session gets freed again
877 * because we haven't used the reference.
878 */
879 return 0;
880}
881
882int s_client_main(int argc, char **argv)
883{
884 BIO *sbio;
885 EVP_PKEY *key = NULL;
886 SSL *con = NULL;
887 SSL_CTX *ctx = NULL;
888 STACK_OF(X509) *chain = NULL;
889 X509 *cert = NULL;
890 X509_VERIFY_PARAM *vpm = NULL;
891 SSL_EXCERT *exc = NULL;
892 SSL_CONF_CTX *cctx = NULL;
893 STACK_OF(OPENSSL_STRING) *ssl_args = NULL;
894 char *dane_tlsa_domain = NULL;
895 STACK_OF(OPENSSL_STRING) *dane_tlsa_rrset = NULL;
896 int dane_ee_no_name = 0;
897 STACK_OF(X509_CRL) *crls = NULL;
898 const SSL_METHOD *meth = TLS_client_method();
899 const char *CApath = NULL, *CAfile = NULL;
900 char *cbuf = NULL, *sbuf = NULL;
901 char *mbuf = NULL, *proxystr = NULL, *connectstr = NULL, *bindstr = NULL;
902 char *cert_file = NULL, *key_file = NULL, *chain_file = NULL;
903 char *chCApath = NULL, *chCAfile = NULL, *host = NULL;
904 char *port = OPENSSL_strdup(PORT);
905 char *bindhost = NULL, *bindport = NULL;
906 char *passarg = NULL, *pass = NULL, *vfyCApath = NULL, *vfyCAfile = NULL;
907 char *ReqCAfile = NULL;
908 char *sess_in = NULL, *crl_file = NULL, *p;
909 const char *protohost = NULL;
910 struct timeval timeout, *timeoutp;
911 fd_set readfds, writefds;
912 int noCApath = 0, noCAfile = 0;
913 int build_chain = 0, cbuf_len, cbuf_off, cert_format = FORMAT_PEM;
914 int key_format = FORMAT_PEM, crlf = 0, full_log = 1, mbuf_len = 0;
915 int prexit = 0;
916 int sdebug = 0;
917 int reconnect = 0, verify = SSL_VERIFY_NONE, vpmtouched = 0;
918 int ret = 1, in_init = 1, i, nbio_test = 0, s = -1, k, width, state = 0;
919 int sbuf_len, sbuf_off, cmdletters = 1;
920 int socket_family = AF_UNSPEC, socket_type = SOCK_STREAM, protocol = 0;
921 int starttls_proto = PROTO_OFF, crl_format = FORMAT_PEM, crl_download = 0;
922 int write_tty, read_tty, write_ssl, read_ssl, tty_on, ssl_pending;
923#if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS)
924 int at_eof = 0;
925#endif
926 int read_buf_len = 0;
927 int fallback_scsv = 0;
928 OPTION_CHOICE o;
929#ifndef OPENSSL_NO_DTLS
930 int enable_timeouts = 0;
931 long socket_mtu = 0;
932#endif
933#ifndef OPENSSL_NO_ENGINE
934 ENGINE *ssl_client_engine = NULL;
935#endif
936 ENGINE *e = NULL;
937#if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
938 struct timeval tv;
939#endif
940 const char *servername = NULL;
941 int noservername = 0;
942 const char *alpn_in = NULL;
943 tlsextctx tlsextcbp = { NULL, 0 };
944 const char *ssl_config = NULL;
945#define MAX_SI_TYPES 100
946 unsigned short serverinfo_types[MAX_SI_TYPES];
947 int serverinfo_count = 0, start = 0, len;
948#ifndef OPENSSL_NO_NEXTPROTONEG
949 const char *next_proto_neg_in = NULL;
950#endif
951#ifndef OPENSSL_NO_SRP
952 char *srppass = NULL;
953 int srp_lateuser = 0;
954 SRP_ARG srp_arg = { NULL, NULL, 0, 0, 0, 1024 };
955#endif
956#ifndef OPENSSL_NO_SRTP
957 char *srtp_profiles = NULL;
958#endif
959#ifndef OPENSSL_NO_CT
960 char *ctlog_file = NULL;
961 int ct_validation = 0;
962#endif
963 int min_version = 0, max_version = 0, prot_opt = 0, no_prot_opt = 0;
964 int async = 0;
965 unsigned int max_send_fragment = 0;
966 unsigned int split_send_fragment = 0, max_pipelines = 0;
967 enum { use_inet, use_unix, use_unknown } connect_type = use_unknown;
968 int count4or6 = 0;
969 uint8_t maxfraglen = 0;
970 int c_nbio = 0, c_msg = 0, c_ign_eof = 0, c_brief = 0;
971 int c_tlsextdebug = 0;
972#ifndef OPENSSL_NO_OCSP
973 int c_status_req = 0;
974#endif
975 BIO *bio_c_msg = NULL;
976 const char *keylog_file = NULL, *early_data_file = NULL;
977#ifndef OPENSSL_NO_DTLS
978 int isdtls = 0;
979#endif
980 char *psksessf = NULL;
981 int enable_pha = 0;
982#ifndef OPENSSL_NO_SCTP
983 int sctp_label_bug = 0;
984#endif
985
986 FD_ZERO(&readfds);
987 FD_ZERO(&writefds);
988/* Known false-positive of MemorySanitizer. */
989#if defined(__has_feature)
990# if __has_feature(memory_sanitizer)
991 __msan_unpoison(&readfds, sizeof(readfds));
992 __msan_unpoison(&writefds, sizeof(writefds));
993# endif
994#endif
995
996 prog = opt_progname(argv[0]);
997 c_quiet = 0;
998 c_debug = 0;
999 c_showcerts = 0;
1000 c_nbio = 0;
1001 vpm = X509_VERIFY_PARAM_new();
1002 cctx = SSL_CONF_CTX_new();
1003
1004 if (vpm == NULL || cctx == NULL) {
1005 BIO_printf(bio_err, "%s: out of memory\n", prog);
1006 goto end;
1007 }
1008
1009 cbuf = app_malloc(BUFSIZZ, "cbuf");
1010 sbuf = app_malloc(BUFSIZZ, "sbuf");
1011 mbuf = app_malloc(BUFSIZZ, "mbuf");
1012
1013 SSL_CONF_CTX_set_flags(cctx, SSL_CONF_FLAG_CLIENT | SSL_CONF_FLAG_CMDLINE);
1014
1015 prog = opt_init(argc, argv, s_client_options);
1016 while ((o = opt_next()) != OPT_EOF) {
1017 /* Check for intermixing flags. */
1018 if (connect_type == use_unix && IS_INET_FLAG(o)) {
1019 BIO_printf(bio_err,
1020 "%s: Intermixed protocol flags (unix and internet domains)\n",
1021 prog);
1022 goto end;
1023 }
1024 if (connect_type == use_inet && IS_UNIX_FLAG(o)) {
1025 BIO_printf(bio_err,
1026 "%s: Intermixed protocol flags (internet and unix domains)\n",
1027 prog);
1028 goto end;
1029 }
1030
1031 if (IS_PROT_FLAG(o) && ++prot_opt > 1) {
1032 BIO_printf(bio_err, "Cannot supply multiple protocol flags\n");
1033 goto end;
1034 }
1035 if (IS_NO_PROT_FLAG(o))
1036 no_prot_opt++;
1037 if (prot_opt == 1 && no_prot_opt) {
1038 BIO_printf(bio_err,
1039 "Cannot supply both a protocol flag and '-no_<prot>'\n");
1040 goto end;
1041 }
1042
1043 switch (o) {
1044 case OPT_EOF:
1045 case OPT_ERR:
1046 opthelp:
1047 BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
1048 goto end;
1049 case OPT_HELP:
1050 opt_help(s_client_options);
1051 ret = 0;
1052 goto end;
1053 case OPT_4:
1054 connect_type = use_inet;
1055 socket_family = AF_INET;
1056 count4or6++;
1057 break;
1058#ifdef AF_INET6
1059 case OPT_6:
1060 connect_type = use_inet;
1061 socket_family = AF_INET6;
1062 count4or6++;
1063 break;
1064#endif
1065 case OPT_HOST:
1066 connect_type = use_inet;
1067 freeandcopy(&host, opt_arg());
1068 break;
1069 case OPT_PORT:
1070 connect_type = use_inet;
1071 freeandcopy(&port, opt_arg());
1072 break;
1073 case OPT_CONNECT:
1074 connect_type = use_inet;
1075 freeandcopy(&connectstr, opt_arg());
1076 break;
1077 case OPT_BIND:
1078 freeandcopy(&bindstr, opt_arg());
1079 break;
1080 case OPT_PROXY:
1081 proxystr = opt_arg();
1082 starttls_proto = PROTO_CONNECT;
1083 break;
1084#ifdef AF_UNIX
1085 case OPT_UNIX:
1086 connect_type = use_unix;
1087 socket_family = AF_UNIX;
1088 freeandcopy(&host, opt_arg());
1089 break;
1090#endif
1091 case OPT_XMPPHOST:
1092 /* fall through, since this is an alias */
1093 case OPT_PROTOHOST:
1094 protohost = opt_arg();
1095 break;
1096 case OPT_VERIFY:
1097 verify = SSL_VERIFY_PEER;
1098 verify_args.depth = atoi(opt_arg());
1099 if (!c_quiet)
1100 BIO_printf(bio_err, "verify depth is %d\n", verify_args.depth);
1101 break;
1102 case OPT_CERT:
1103 cert_file = opt_arg();
1104 break;
1105 case OPT_NAMEOPT:
1106 if (!set_nameopt(opt_arg()))
1107 goto end;
1108 break;
1109 case OPT_CRL:
1110 crl_file = opt_arg();
1111 break;
1112 case OPT_CRL_DOWNLOAD:
1113 crl_download = 1;
1114 break;
1115 case OPT_SESS_OUT:
1116 sess_out = opt_arg();
1117 break;
1118 case OPT_SESS_IN:
1119 sess_in = opt_arg();
1120 break;
1121 case OPT_CERTFORM:
1122 if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &cert_format))
1123 goto opthelp;
1124 break;
1125 case OPT_CRLFORM:
1126 if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &crl_format))
1127 goto opthelp;
1128 break;
1129 case OPT_VERIFY_RET_ERROR:
1130 verify = SSL_VERIFY_PEER;
1131 verify_args.return_error = 1;
1132 break;
1133 case OPT_VERIFY_QUIET:
1134 verify_args.quiet = 1;
1135 break;
1136 case OPT_BRIEF:
1137 c_brief = verify_args.quiet = c_quiet = 1;
1138 break;
1139 case OPT_S_CASES:
1140 if (ssl_args == NULL)
1141 ssl_args = sk_OPENSSL_STRING_new_null();
1142 if (ssl_args == NULL
1143 || !sk_OPENSSL_STRING_push(ssl_args, opt_flag())
1144 || !sk_OPENSSL_STRING_push(ssl_args, opt_arg())) {
1145 BIO_printf(bio_err, "%s: Memory allocation failure\n", prog);
1146 goto end;
1147 }
1148 break;
1149 case OPT_V_CASES:
1150 if (!opt_verify(o, vpm))
1151 goto end;
1152 vpmtouched++;
1153 break;
1154 case OPT_X_CASES:
1155 if (!args_excert(o, &exc))
1156 goto end;
1157 break;
1158 case OPT_PREXIT:
1159 prexit = 1;
1160 break;
1161 case OPT_CRLF:
1162 crlf = 1;
1163 break;
1164 case OPT_QUIET:
1165 c_quiet = c_ign_eof = 1;
1166 break;
1167 case OPT_NBIO:
1168 c_nbio = 1;
1169 break;
1170 case OPT_NOCMDS:
1171 cmdletters = 0;
1172 break;
1173 case OPT_ENGINE:
1174 e = setup_engine(opt_arg(), 1);
1175 break;
1176 case OPT_SSL_CLIENT_ENGINE:
1177#ifndef OPENSSL_NO_ENGINE
1178 ssl_client_engine = ENGINE_by_id(opt_arg());
1179 if (ssl_client_engine == NULL) {
1180 BIO_printf(bio_err, "Error getting client auth engine\n");
1181 goto opthelp;
1182 }
1183#endif
1184 break;
1185 case OPT_R_CASES:
1186 if (!opt_rand(o))
1187 goto end;
1188 break;
1189 case OPT_IGN_EOF:
1190 c_ign_eof = 1;
1191 break;
1192 case OPT_NO_IGN_EOF:
1193 c_ign_eof = 0;
1194 break;
1195 case OPT_DEBUG:
1196 c_debug = 1;
1197 break;
1198 case OPT_TLSEXTDEBUG:
1199 c_tlsextdebug = 1;
1200 break;
1201 case OPT_STATUS:
1202#ifndef OPENSSL_NO_OCSP
1203 c_status_req = 1;
1204#endif
1205 break;
1206 case OPT_WDEBUG:
1207#ifdef WATT32
1208 dbug_init();
1209#endif
1210 break;
1211 case OPT_MSG:
1212 c_msg = 1;
1213 break;
1214 case OPT_MSGFILE:
1215 bio_c_msg = BIO_new_file(opt_arg(), "w");
1216 break;
1217 case OPT_TRACE:
1218#ifndef OPENSSL_NO_SSL_TRACE
1219 c_msg = 2;
1220#endif
1221 break;
1222 case OPT_SECURITY_DEBUG:
1223 sdebug = 1;
1224 break;
1225 case OPT_SECURITY_DEBUG_VERBOSE:
1226 sdebug = 2;
1227 break;
1228 case OPT_SHOWCERTS:
1229 c_showcerts = 1;
1230 break;
1231 case OPT_NBIO_TEST:
1232 nbio_test = 1;
1233 break;
1234 case OPT_STATE:
1235 state = 1;
1236 break;
1237 case OPT_PSK_IDENTITY:
1238 psk_identity = opt_arg();
1239 break;
1240 case OPT_PSK:
1241 for (p = psk_key = opt_arg(); *p; p++) {
1242 if (isxdigit(_UC(*p)))
1243 continue;
1244 BIO_printf(bio_err, "Not a hex number '%s'\n", psk_key);
1245 goto end;
1246 }
1247 break;
1248 case OPT_PSK_SESS:
1249 psksessf = opt_arg();
1250 break;
1251#ifndef OPENSSL_NO_SRP
1252 case OPT_SRPUSER:
1253 srp_arg.srplogin = opt_arg();
1254 if (min_version < TLS1_VERSION)
1255 min_version = TLS1_VERSION;
1256 break;
1257 case OPT_SRPPASS:
1258 srppass = opt_arg();
1259 if (min_version < TLS1_VERSION)
1260 min_version = TLS1_VERSION;
1261 break;
1262 case OPT_SRP_STRENGTH:
1263 srp_arg.strength = atoi(opt_arg());
1264 BIO_printf(bio_err, "SRP minimal length for N is %d\n",
1265 srp_arg.strength);
1266 if (min_version < TLS1_VERSION)
1267 min_version = TLS1_VERSION;
1268 break;
1269 case OPT_SRP_LATEUSER:
1270 srp_lateuser = 1;
1271 if (min_version < TLS1_VERSION)
1272 min_version = TLS1_VERSION;
1273 break;
1274 case OPT_SRP_MOREGROUPS:
1275 srp_arg.amp = 1;
1276 if (min_version < TLS1_VERSION)
1277 min_version = TLS1_VERSION;
1278 break;
1279#endif
1280 case OPT_SSL_CONFIG:
1281 ssl_config = opt_arg();
1282 break;
1283 case OPT_SSL3:
1284 min_version = SSL3_VERSION;
1285 max_version = SSL3_VERSION;
1286 socket_type = SOCK_STREAM;
1287#ifndef OPENSSL_NO_DTLS
1288 isdtls = 0;
1289#endif
1290 break;
1291 case OPT_TLS1_3:
1292 min_version = TLS1_3_VERSION;
1293 max_version = TLS1_3_VERSION;
1294 socket_type = SOCK_STREAM;
1295#ifndef OPENSSL_NO_DTLS
1296 isdtls = 0;
1297#endif
1298 break;
1299 case OPT_TLS1_2:
1300 min_version = TLS1_2_VERSION;
1301 max_version = TLS1_2_VERSION;
1302 socket_type = SOCK_STREAM;
1303#ifndef OPENSSL_NO_DTLS
1304 isdtls = 0;
1305#endif
1306 break;
1307 case OPT_TLS1_1:
1308 min_version = TLS1_1_VERSION;
1309 max_version = TLS1_1_VERSION;
1310 socket_type = SOCK_STREAM;
1311#ifndef OPENSSL_NO_DTLS
1312 isdtls = 0;
1313#endif
1314 break;
1315 case OPT_TLS1:
1316 min_version = TLS1_VERSION;
1317 max_version = TLS1_VERSION;
1318 socket_type = SOCK_STREAM;
1319#ifndef OPENSSL_NO_DTLS
1320 isdtls = 0;
1321#endif
1322 break;
1323 case OPT_DTLS:
1324#ifndef OPENSSL_NO_DTLS
1325 meth = DTLS_client_method();
1326 socket_type = SOCK_DGRAM;
1327 isdtls = 1;
1328#endif
1329 break;
1330 case OPT_DTLS1:
1331#ifndef OPENSSL_NO_DTLS1
1332 meth = DTLS_client_method();
1333 min_version = DTLS1_VERSION;
1334 max_version = DTLS1_VERSION;
1335 socket_type = SOCK_DGRAM;
1336 isdtls = 1;
1337#endif
1338 break;
1339 case OPT_DTLS1_2:
1340#ifndef OPENSSL_NO_DTLS1_2
1341 meth = DTLS_client_method();
1342 min_version = DTLS1_2_VERSION;
1343 max_version = DTLS1_2_VERSION;
1344 socket_type = SOCK_DGRAM;
1345 isdtls = 1;
1346#endif
1347 break;
1348 case OPT_SCTP:
1349#ifndef OPENSSL_NO_SCTP
1350 protocol = IPPROTO_SCTP;
1351#endif
1352 break;
1353 case OPT_SCTP_LABEL_BUG:
1354#ifndef OPENSSL_NO_SCTP
1355 sctp_label_bug = 1;
1356#endif
1357 break;
1358 case OPT_TIMEOUT:
1359#ifndef OPENSSL_NO_DTLS
1360 enable_timeouts = 1;
1361#endif
1362 break;
1363 case OPT_MTU:
1364#ifndef OPENSSL_NO_DTLS
1365 socket_mtu = atol(opt_arg());
1366#endif
1367 break;
1368 case OPT_FALLBACKSCSV:
1369 fallback_scsv = 1;
1370 break;
1371 case OPT_KEYFORM:
1372 if (!opt_format(opt_arg(), OPT_FMT_PDE, &key_format))
1373 goto opthelp;
1374 break;
1375 case OPT_PASS:
1376 passarg = opt_arg();
1377 break;
1378 case OPT_CERT_CHAIN:
1379 chain_file = opt_arg();
1380 break;
1381 case OPT_KEY:
1382 key_file = opt_arg();
1383 break;
1384 case OPT_RECONNECT:
1385 reconnect = 5;
1386 break;
1387 case OPT_CAPATH:
1388 CApath = opt_arg();
1389 break;
1390 case OPT_NOCAPATH:
1391 noCApath = 1;
1392 break;
1393 case OPT_CHAINCAPATH:
1394 chCApath = opt_arg();
1395 break;
1396 case OPT_VERIFYCAPATH:
1397 vfyCApath = opt_arg();
1398 break;
1399 case OPT_BUILD_CHAIN:
1400 build_chain = 1;
1401 break;
1402 case OPT_REQCAFILE:
1403 ReqCAfile = opt_arg();
1404 break;
1405 case OPT_CAFILE:
1406 CAfile = opt_arg();
1407 break;
1408 case OPT_NOCAFILE:
1409 noCAfile = 1;
1410 break;
1411#ifndef OPENSSL_NO_CT
1412 case OPT_NOCT:
1413 ct_validation = 0;
1414 break;
1415 case OPT_CT:
1416 ct_validation = 1;
1417 break;
1418 case OPT_CTLOG_FILE:
1419 ctlog_file = opt_arg();
1420 break;
1421#endif
1422 case OPT_CHAINCAFILE:
1423 chCAfile = opt_arg();
1424 break;
1425 case OPT_VERIFYCAFILE:
1426 vfyCAfile = opt_arg();
1427 break;
1428 case OPT_DANE_TLSA_DOMAIN:
1429 dane_tlsa_domain = opt_arg();
1430 break;
1431 case OPT_DANE_TLSA_RRDATA:
1432 if (dane_tlsa_rrset == NULL)
1433 dane_tlsa_rrset = sk_OPENSSL_STRING_new_null();
1434 if (dane_tlsa_rrset == NULL ||
1435 !sk_OPENSSL_STRING_push(dane_tlsa_rrset, opt_arg())) {
1436 BIO_printf(bio_err, "%s: Memory allocation failure\n", prog);
1437 goto end;
1438 }
1439 break;
1440 case OPT_DANE_EE_NO_NAME:
1441 dane_ee_no_name = 1;
1442 break;
1443 case OPT_NEXTPROTONEG:
1444#ifndef OPENSSL_NO_NEXTPROTONEG
1445 next_proto_neg_in = opt_arg();
1446#endif
1447 break;
1448 case OPT_ALPN:
1449 alpn_in = opt_arg();
1450 break;
1451 case OPT_SERVERINFO:
1452 p = opt_arg();
1453 len = strlen(p);
1454 for (start = 0, i = 0; i <= len; ++i) {
1455 if (i == len || p[i] == ',') {
1456 serverinfo_types[serverinfo_count] = atoi(p + start);
1457 if (++serverinfo_count == MAX_SI_TYPES)
1458 break;
1459 start = i + 1;
1460 }
1461 }
1462 break;
1463 case OPT_STARTTLS:
1464 if (!opt_pair(opt_arg(), services, &starttls_proto))
1465 goto end;
1466 break;
1467 case OPT_SERVERNAME:
1468 servername = opt_arg();
1469 break;
1470 case OPT_NOSERVERNAME:
1471 noservername = 1;
1472 break;
1473 case OPT_USE_SRTP:
1474#ifndef OPENSSL_NO_SRTP
1475 srtp_profiles = opt_arg();
1476#endif
1477 break;
1478 case OPT_KEYMATEXPORT:
1479 keymatexportlabel = opt_arg();
1480 break;
1481 case OPT_KEYMATEXPORTLEN:
1482 keymatexportlen = atoi(opt_arg());
1483 break;
1484 case OPT_ASYNC:
1485 async = 1;
1486 break;
1487 case OPT_MAXFRAGLEN:
1488 len = atoi(opt_arg());
1489 switch (len) {
1490 case 512:
1491 maxfraglen = TLSEXT_max_fragment_length_512;
1492 break;
1493 case 1024:
1494 maxfraglen = TLSEXT_max_fragment_length_1024;
1495 break;
1496 case 2048:
1497 maxfraglen = TLSEXT_max_fragment_length_2048;
1498 break;
1499 case 4096:
1500 maxfraglen = TLSEXT_max_fragment_length_4096;
1501 break;
1502 default:
1503 BIO_printf(bio_err,
1504 "%s: Max Fragment Len %u is out of permitted values",
1505 prog, len);
1506 goto opthelp;
1507 }
1508 break;
1509 case OPT_MAX_SEND_FRAG:
1510 max_send_fragment = atoi(opt_arg());
1511 break;
1512 case OPT_SPLIT_SEND_FRAG:
1513 split_send_fragment = atoi(opt_arg());
1514 break;
1515 case OPT_MAX_PIPELINES:
1516 max_pipelines = atoi(opt_arg());
1517 break;
1518 case OPT_READ_BUF:
1519 read_buf_len = atoi(opt_arg());
1520 break;
1521 case OPT_KEYLOG_FILE:
1522 keylog_file = opt_arg();
1523 break;
1524 case OPT_EARLY_DATA:
1525 early_data_file = opt_arg();
1526 break;
1527 case OPT_ENABLE_PHA:
1528 enable_pha = 1;
1529 break;
1530 }
1531 }
1532 if (count4or6 >= 2) {
1533 BIO_printf(bio_err, "%s: Can't use both -4 and -6\n", prog);
1534 goto opthelp;
1535 }
1536 if (noservername) {
1537 if (servername != NULL) {
1538 BIO_printf(bio_err,
1539 "%s: Can't use -servername and -noservername together\n",
1540 prog);
1541 goto opthelp;
1542 }
1543 if (dane_tlsa_domain != NULL) {
1544 BIO_printf(bio_err,
1545 "%s: Can't use -dane_tlsa_domain and -noservername together\n",
1546 prog);
1547 goto opthelp;
1548 }
1549 }
1550 argc = opt_num_rest();
1551 if (argc == 1) {
1552 /* If there's a positional argument, it's the equivalent of
1553 * OPT_CONNECT.
1554 * Don't allow -connect and a separate argument.
1555 */
1556 if (connectstr != NULL) {
1557 BIO_printf(bio_err,
1558 "%s: must not provide both -connect option and target parameter\n",
1559 prog);
1560 goto opthelp;
1561 }
1562 connect_type = use_inet;
1563 freeandcopy(&connectstr, *opt_rest());
1564 } else if (argc != 0) {
1565 goto opthelp;
1566 }
1567
1568#ifndef OPENSSL_NO_NEXTPROTONEG
1569 if (min_version == TLS1_3_VERSION && next_proto_neg_in != NULL) {
1570 BIO_printf(bio_err, "Cannot supply -nextprotoneg with TLSv1.3\n");
1571 goto opthelp;
1572 }
1573#endif
1574 if (proxystr != NULL) {
1575 int res;
1576 char *tmp_host = host, *tmp_port = port;
1577 if (connectstr == NULL) {
1578 BIO_printf(bio_err, "%s: -proxy requires use of -connect or target parameter\n", prog);
1579 goto opthelp;
1580 }
1581 res = BIO_parse_hostserv(proxystr, &host, &port, BIO_PARSE_PRIO_HOST);
1582 if (tmp_host != host)
1583 OPENSSL_free(tmp_host);
1584 if (tmp_port != port)
1585 OPENSSL_free(tmp_port);
1586 if (!res) {
1587 BIO_printf(bio_err,
1588 "%s: -proxy argument malformed or ambiguous\n", prog);
1589 goto end;
1590 }
1591 } else {
1592 int res = 1;
1593 char *tmp_host = host, *tmp_port = port;
1594 if (connectstr != NULL)
1595 res = BIO_parse_hostserv(connectstr, &host, &port,
1596 BIO_PARSE_PRIO_HOST);
1597 if (tmp_host != host)
1598 OPENSSL_free(tmp_host);
1599 if (tmp_port != port)
1600 OPENSSL_free(tmp_port);
1601 if (!res) {
1602 BIO_printf(bio_err,
1603 "%s: -connect argument or target parameter malformed or ambiguous\n",
1604 prog);
1605 goto end;
1606 }
1607 }
1608
1609 if (bindstr != NULL) {
1610 int res;
1611 res = BIO_parse_hostserv(bindstr, &bindhost, &bindport,
1612 BIO_PARSE_PRIO_HOST);
1613 if (!res) {
1614 BIO_printf(bio_err,
1615 "%s: -bind argument parameter malformed or ambiguous\n",
1616 prog);
1617 goto end;
1618 }
1619 }
1620
1621#ifdef AF_UNIX
1622 if (socket_family == AF_UNIX && socket_type != SOCK_STREAM) {
1623 BIO_printf(bio_err,
1624 "Can't use unix sockets and datagrams together\n");
1625 goto end;
1626 }
1627#endif
1628
1629#ifndef OPENSSL_NO_SCTP
1630 if (protocol == IPPROTO_SCTP) {
1631 if (socket_type != SOCK_DGRAM) {
1632 BIO_printf(bio_err, "Can't use -sctp without DTLS\n");
1633 goto end;
1634 }
1635 /* SCTP is unusual. It uses DTLS over a SOCK_STREAM protocol */
1636 socket_type = SOCK_STREAM;
1637 }
1638#endif
1639
1640#if !defined(OPENSSL_NO_NEXTPROTONEG)
1641 next_proto.status = -1;
1642 if (next_proto_neg_in) {
1643 next_proto.data =
1644 next_protos_parse(&next_proto.len, next_proto_neg_in);
1645 if (next_proto.data == NULL) {
1646 BIO_printf(bio_err, "Error parsing -nextprotoneg argument\n");
1647 goto end;
1648 }
1649 } else
1650 next_proto.data = NULL;
1651#endif
1652
1653 if (!app_passwd(passarg, NULL, &pass, NULL)) {
1654 BIO_printf(bio_err, "Error getting password\n");
1655 goto end;
1656 }
1657
1658 if (key_file == NULL)
1659 key_file = cert_file;
1660
1661 if (key_file != NULL) {
1662 key = load_key(key_file, key_format, 0, pass, e,
1663 "client certificate private key file");
1664 if (key == NULL) {
1665 ERR_print_errors(bio_err);
1666 goto end;
1667 }
1668 }
1669
1670 if (cert_file != NULL) {
1671 cert = load_cert(cert_file, cert_format, "client certificate file");
1672 if (cert == NULL) {
1673 ERR_print_errors(bio_err);
1674 goto end;
1675 }
1676 }
1677
1678 if (chain_file != NULL) {
1679 if (!load_certs(chain_file, &chain, FORMAT_PEM, NULL,
1680 "client certificate chain"))
1681 goto end;
1682 }
1683
1684 if (crl_file != NULL) {
1685 X509_CRL *crl;
1686 crl = load_crl(crl_file, crl_format);
1687 if (crl == NULL) {
1688 BIO_puts(bio_err, "Error loading CRL\n");
1689 ERR_print_errors(bio_err);
1690 goto end;
1691 }
1692 crls = sk_X509_CRL_new_null();
1693 if (crls == NULL || !sk_X509_CRL_push(crls, crl)) {
1694 BIO_puts(bio_err, "Error adding CRL\n");
1695 ERR_print_errors(bio_err);
1696 X509_CRL_free(crl);
1697 goto end;
1698 }
1699 }
1700
1701 if (!load_excert(&exc))
1702 goto end;
1703
1704 if (bio_c_out == NULL) {
1705 if (c_quiet && !c_debug) {
1706 bio_c_out = BIO_new(BIO_s_null());
1707 if (c_msg && bio_c_msg == NULL)
1708 bio_c_msg = dup_bio_out(FORMAT_TEXT);
1709 } else if (bio_c_out == NULL)
1710 bio_c_out = dup_bio_out(FORMAT_TEXT);
1711 }
1712#ifndef OPENSSL_NO_SRP
1713 if (!app_passwd(srppass, NULL, &srp_arg.srppassin, NULL)) {
1714 BIO_printf(bio_err, "Error getting password\n");
1715 goto end;
1716 }
1717#endif
1718
1719 ctx = SSL_CTX_new(meth);
1720 if (ctx == NULL) {
1721 ERR_print_errors(bio_err);
1722 goto end;
1723 }
1724
1725 SSL_CTX_clear_mode(ctx, SSL_MODE_AUTO_RETRY);
1726
1727 if (sdebug)
1728 ssl_ctx_security_debug(ctx, sdebug);
1729
1730 if (!config_ctx(cctx, ssl_args, ctx))
1731 goto end;
1732
1733 if (ssl_config != NULL) {
1734 if (SSL_CTX_config(ctx, ssl_config) == 0) {
1735 BIO_printf(bio_err, "Error using configuration \"%s\"\n",
1736 ssl_config);
1737 ERR_print_errors(bio_err);
1738 goto end;
1739 }
1740 }
1741
1742#ifndef OPENSSL_NO_SCTP
1743 if (protocol == IPPROTO_SCTP && sctp_label_bug == 1)
1744 SSL_CTX_set_mode(ctx, SSL_MODE_DTLS_SCTP_LABEL_LENGTH_BUG);
1745#endif
1746
1747 if (min_version != 0
1748 && SSL_CTX_set_min_proto_version(ctx, min_version) == 0)
1749 goto end;
1750 if (max_version != 0
1751 && SSL_CTX_set_max_proto_version(ctx, max_version) == 0)
1752 goto end;
1753
1754 if (vpmtouched && !SSL_CTX_set1_param(ctx, vpm)) {
1755 BIO_printf(bio_err, "Error setting verify params\n");
1756 ERR_print_errors(bio_err);
1757 goto end;
1758 }
1759
1760 if (async) {
1761 SSL_CTX_set_mode(ctx, SSL_MODE_ASYNC);
1762 }
1763
1764 if (max_send_fragment > 0
1765 && !SSL_CTX_set_max_send_fragment(ctx, max_send_fragment)) {
1766 BIO_printf(bio_err, "%s: Max send fragment size %u is out of permitted range\n",
1767 prog, max_send_fragment);
1768 goto end;
1769 }
1770
1771 if (split_send_fragment > 0
1772 && !SSL_CTX_set_split_send_fragment(ctx, split_send_fragment)) {
1773 BIO_printf(bio_err, "%s: Split send fragment size %u is out of permitted range\n",
1774 prog, split_send_fragment);
1775 goto end;
1776 }
1777
1778 if (max_pipelines > 0
1779 && !SSL_CTX_set_max_pipelines(ctx, max_pipelines)) {
1780 BIO_printf(bio_err, "%s: Max pipelines %u is out of permitted range\n",
1781 prog, max_pipelines);
1782 goto end;
1783 }
1784
1785 if (read_buf_len > 0) {
1786 SSL_CTX_set_default_read_buffer_len(ctx, read_buf_len);
1787 }
1788
1789 if (maxfraglen > 0
1790 && !SSL_CTX_set_tlsext_max_fragment_length(ctx, maxfraglen)) {
1791 BIO_printf(bio_err,
1792 "%s: Max Fragment Length code %u is out of permitted values"
1793 "\n", prog, maxfraglen);
1794 goto end;
1795 }
1796
1797 if (!ssl_load_stores(ctx, vfyCApath, vfyCAfile, chCApath, chCAfile,
1798 crls, crl_download)) {
1799 BIO_printf(bio_err, "Error loading store locations\n");
1800 ERR_print_errors(bio_err);
1801 goto end;
1802 }
1803 if (ReqCAfile != NULL) {
1804 STACK_OF(X509_NAME) *nm = sk_X509_NAME_new_null();
1805
1806 if (nm == NULL || !SSL_add_file_cert_subjects_to_stack(nm, ReqCAfile)) {
1807 sk_X509_NAME_pop_free(nm, X509_NAME_free);
1808 BIO_printf(bio_err, "Error loading CA names\n");
1809 ERR_print_errors(bio_err);
1810 goto end;
1811 }
1812 SSL_CTX_set0_CA_list(ctx, nm);
1813 }
1814#ifndef OPENSSL_NO_ENGINE
1815 if (ssl_client_engine) {
1816 if (!SSL_CTX_set_client_cert_engine(ctx, ssl_client_engine)) {
1817 BIO_puts(bio_err, "Error setting client auth engine\n");
1818 ERR_print_errors(bio_err);
1819 ENGINE_free(ssl_client_engine);
1820 goto end;
1821 }
1822 ENGINE_free(ssl_client_engine);
1823 }
1824#endif
1825
1826#ifndef OPENSSL_NO_PSK
1827 if (psk_key != NULL) {
1828 if (c_debug)
1829 BIO_printf(bio_c_out, "PSK key given, setting client callback\n");
1830 SSL_CTX_set_psk_client_callback(ctx, psk_client_cb);
1831 }
1832#endif
1833 if (psksessf != NULL) {
1834 BIO *stmp = BIO_new_file(psksessf, "r");
1835
1836 if (stmp == NULL) {
1837 BIO_printf(bio_err, "Can't open PSK session file %s\n", psksessf);
1838 ERR_print_errors(bio_err);
1839 goto end;
1840 }
1841 psksess = PEM_read_bio_SSL_SESSION(stmp, NULL, 0, NULL);
1842 BIO_free(stmp);
1843 if (psksess == NULL) {
1844 BIO_printf(bio_err, "Can't read PSK session file %s\n", psksessf);
1845 ERR_print_errors(bio_err);
1846 goto end;
1847 }
1848 }
1849 if (psk_key != NULL || psksess != NULL)
1850 SSL_CTX_set_psk_use_session_callback(ctx, psk_use_session_cb);
1851
1852#ifndef OPENSSL_NO_SRTP
1853 if (srtp_profiles != NULL) {
1854 /* Returns 0 on success! */
1855 if (SSL_CTX_set_tlsext_use_srtp(ctx, srtp_profiles) != 0) {
1856 BIO_printf(bio_err, "Error setting SRTP profile\n");
1857 ERR_print_errors(bio_err);
1858 goto end;
1859 }
1860 }
1861#endif
1862
1863 if (exc != NULL)
1864 ssl_ctx_set_excert(ctx, exc);
1865
1866#if !defined(OPENSSL_NO_NEXTPROTONEG)
1867 if (next_proto.data != NULL)
1868 SSL_CTX_set_next_proto_select_cb(ctx, next_proto_cb, &next_proto);
1869#endif
1870 if (alpn_in) {
1871 size_t alpn_len;
1872 unsigned char *alpn = next_protos_parse(&alpn_len, alpn_in);
1873
1874 if (alpn == NULL) {
1875 BIO_printf(bio_err, "Error parsing -alpn argument\n");
1876 goto end;
1877 }
1878 /* Returns 0 on success! */
1879 if (SSL_CTX_set_alpn_protos(ctx, alpn, alpn_len) != 0) {
1880 BIO_printf(bio_err, "Error setting ALPN\n");
1881 goto end;
1882 }
1883 OPENSSL_free(alpn);
1884 }
1885
1886 for (i = 0; i < serverinfo_count; i++) {
1887 if (!SSL_CTX_add_client_custom_ext(ctx,
1888 serverinfo_types[i],
1889 NULL, NULL, NULL,
1890 serverinfo_cli_parse_cb, NULL)) {
1891 BIO_printf(bio_err,
1892 "Warning: Unable to add custom extension %u, skipping\n",
1893 serverinfo_types[i]);
1894 }
1895 }
1896
1897 if (state)
1898 SSL_CTX_set_info_callback(ctx, apps_ssl_info_callback);
1899
1900#ifndef OPENSSL_NO_CT
1901 /* Enable SCT processing, without early connection termination */
1902 if (ct_validation &&
1903 !SSL_CTX_enable_ct(ctx, SSL_CT_VALIDATION_PERMISSIVE)) {
1904 ERR_print_errors(bio_err);
1905 goto end;
1906 }
1907
1908 if (!ctx_set_ctlog_list_file(ctx, ctlog_file)) {
1909 if (ct_validation) {
1910 ERR_print_errors(bio_err);
1911 goto end;
1912 }
1913
1914 /*
1915 * If CT validation is not enabled, the log list isn't needed so don't
1916 * show errors or abort. We try to load it regardless because then we
1917 * can show the names of the logs any SCTs came from (SCTs may be seen
1918 * even with validation disabled).
1919 */
1920 ERR_clear_error();
1921 }
1922#endif
1923
1924 SSL_CTX_set_verify(ctx, verify, verify_callback);
1925
1926 if (!ctx_set_verify_locations(ctx, CAfile, CApath, noCAfile, noCApath)) {
1927 ERR_print_errors(bio_err);
1928 goto end;
1929 }
1930
1931 ssl_ctx_add_crls(ctx, crls, crl_download);
1932
1933 if (!set_cert_key_stuff(ctx, cert, key, chain, build_chain))
1934 goto end;
1935
1936 if (!noservername) {
1937 tlsextcbp.biodebug = bio_err;
1938 SSL_CTX_set_tlsext_servername_callback(ctx, ssl_servername_cb);
1939 SSL_CTX_set_tlsext_servername_arg(ctx, &tlsextcbp);
1940 }
1941# ifndef OPENSSL_NO_SRP
1942 if (srp_arg.srplogin) {
1943 if (!srp_lateuser && !SSL_CTX_set_srp_username(ctx, srp_arg.srplogin)) {
1944 BIO_printf(bio_err, "Unable to set SRP username\n");
1945 goto end;
1946 }
1947 srp_arg.msg = c_msg;
1948 srp_arg.debug = c_debug;
1949 SSL_CTX_set_srp_cb_arg(ctx, &srp_arg);
1950 SSL_CTX_set_srp_client_pwd_callback(ctx, ssl_give_srp_client_pwd_cb);
1951 SSL_CTX_set_srp_strength(ctx, srp_arg.strength);
1952 if (c_msg || c_debug || srp_arg.amp == 0)
1953 SSL_CTX_set_srp_verify_param_callback(ctx,
1954 ssl_srp_verify_param_cb);
1955 }
1956# endif
1957
1958 if (dane_tlsa_domain != NULL) {
1959 if (SSL_CTX_dane_enable(ctx) <= 0) {
1960 BIO_printf(bio_err,
1961 "%s: Error enabling DANE TLSA authentication.\n",
1962 prog);
1963 ERR_print_errors(bio_err);
1964 goto end;
1965 }
1966 }
1967
1968 /*
1969 * In TLSv1.3 NewSessionTicket messages arrive after the handshake and can
1970 * come at any time. Therefore we use a callback to write out the session
1971 * when we know about it. This approach works for < TLSv1.3 as well.
1972 */
1973 SSL_CTX_set_session_cache_mode(ctx, SSL_SESS_CACHE_CLIENT
1974 | SSL_SESS_CACHE_NO_INTERNAL_STORE);
1975 SSL_CTX_sess_set_new_cb(ctx, new_session_cb);
1976
1977 if (set_keylog_file(ctx, keylog_file))
1978 goto end;
1979
1980 con = SSL_new(ctx);
1981 if (con == NULL)
1982 goto end;
1983
1984 if (enable_pha)
1985 SSL_set_post_handshake_auth(con, 1);
1986
1987 if (sess_in != NULL) {
1988 SSL_SESSION *sess;
1989 BIO *stmp = BIO_new_file(sess_in, "r");
1990 if (stmp == NULL) {
1991 BIO_printf(bio_err, "Can't open session file %s\n", sess_in);
1992 ERR_print_errors(bio_err);
1993 goto end;
1994 }
1995 sess = PEM_read_bio_SSL_SESSION(stmp, NULL, 0, NULL);
1996 BIO_free(stmp);
1997 if (sess == NULL) {
1998 BIO_printf(bio_err, "Can't open session file %s\n", sess_in);
1999 ERR_print_errors(bio_err);
2000 goto end;
2001 }
2002 if (!SSL_set_session(con, sess)) {
2003 BIO_printf(bio_err, "Can't set session\n");
2004 ERR_print_errors(bio_err);
2005 goto end;
2006 }
2007
2008 SSL_SESSION_free(sess);
2009 }
2010
2011 if (fallback_scsv)
2012 SSL_set_mode(con, SSL_MODE_SEND_FALLBACK_SCSV);
2013
2014 if (!noservername && (servername != NULL || dane_tlsa_domain == NULL)) {
2015 if (servername == NULL) {
2016 if(host == NULL || is_dNS_name(host))
2017 servername = (host == NULL) ? "localhost" : host;
2018 }
2019 if (servername != NULL && !SSL_set_tlsext_host_name(con, servername)) {
2020 BIO_printf(bio_err, "Unable to set TLS servername extension.\n");
2021 ERR_print_errors(bio_err);
2022 goto end;
2023 }
2024 }
2025
2026 if (dane_tlsa_domain != NULL) {
2027 if (SSL_dane_enable(con, dane_tlsa_domain) <= 0) {
2028 BIO_printf(bio_err, "%s: Error enabling DANE TLSA "
2029 "authentication.\n", prog);
2030 ERR_print_errors(bio_err);
2031 goto end;
2032 }
2033 if (dane_tlsa_rrset == NULL) {
2034 BIO_printf(bio_err, "%s: DANE TLSA authentication requires at "
2035 "least one -dane_tlsa_rrdata option.\n", prog);
2036 goto end;
2037 }
2038 if (tlsa_import_rrset(con, dane_tlsa_rrset) <= 0) {
2039 BIO_printf(bio_err, "%s: Failed to import any TLSA "
2040 "records.\n", prog);
2041 goto end;
2042 }
2043 if (dane_ee_no_name)
2044 SSL_dane_set_flags(con, DANE_FLAG_NO_DANE_EE_NAMECHECKS);
2045 } else if (dane_tlsa_rrset != NULL) {
2046 BIO_printf(bio_err, "%s: DANE TLSA authentication requires the "
2047 "-dane_tlsa_domain option.\n", prog);
2048 goto end;
2049 }
2050
2051 re_start:
2052 if (init_client(&s, host, port, bindhost, bindport, socket_family,
2053 socket_type, protocol) == 0) {
2054 BIO_printf(bio_err, "connect:errno=%d\n", get_last_socket_error());
2055 BIO_closesocket(s);
2056 goto end;
2057 }
2058 BIO_printf(bio_c_out, "CONNECTED(%08X)\n", s);
2059
2060 if (c_nbio) {
2061 if (!BIO_socket_nbio(s, 1)) {
2062 ERR_print_errors(bio_err);
2063 goto end;
2064 }
2065 BIO_printf(bio_c_out, "Turned on non blocking io\n");
2066 }
2067#ifndef OPENSSL_NO_DTLS
2068 if (isdtls) {
2069 union BIO_sock_info_u peer_info;
2070
2071#ifndef OPENSSL_NO_SCTP
2072 if (protocol == IPPROTO_SCTP)
2073 sbio = BIO_new_dgram_sctp(s, BIO_NOCLOSE);
2074 else
2075#endif
2076 sbio = BIO_new_dgram(s, BIO_NOCLOSE);
2077
2078 if ((peer_info.addr = BIO_ADDR_new()) == NULL) {
2079 BIO_printf(bio_err, "memory allocation failure\n");
2080 BIO_closesocket(s);
2081 goto end;
2082 }
2083 if (!BIO_sock_info(s, BIO_SOCK_INFO_ADDRESS, &peer_info)) {
2084 BIO_printf(bio_err, "getsockname:errno=%d\n",
2085 get_last_socket_error());
2086 BIO_ADDR_free(peer_info.addr);
2087 BIO_closesocket(s);
2088 goto end;
2089 }
2090
2091 (void)BIO_ctrl_set_connected(sbio, peer_info.addr);
2092 BIO_ADDR_free(peer_info.addr);
2093 peer_info.addr = NULL;
2094
2095 if (enable_timeouts) {
2096 timeout.tv_sec = 0;
2097 timeout.tv_usec = DGRAM_RCV_TIMEOUT;
2098 BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_RECV_TIMEOUT, 0, &timeout);
2099
2100 timeout.tv_sec = 0;
2101 timeout.tv_usec = DGRAM_SND_TIMEOUT;
2102 BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_SEND_TIMEOUT, 0, &timeout);
2103 }
2104
2105 if (socket_mtu) {
2106 if (socket_mtu < DTLS_get_link_min_mtu(con)) {
2107 BIO_printf(bio_err, "MTU too small. Must be at least %ld\n",
2108 DTLS_get_link_min_mtu(con));
2109 BIO_free(sbio);
2110 goto shut;
2111 }
2112 SSL_set_options(con, SSL_OP_NO_QUERY_MTU);
2113 if (!DTLS_set_link_mtu(con, socket_mtu)) {
2114 BIO_printf(bio_err, "Failed to set MTU\n");
2115 BIO_free(sbio);
2116 goto shut;
2117 }
2118 } else {
2119 /* want to do MTU discovery */
2120 BIO_ctrl(sbio, BIO_CTRL_DGRAM_MTU_DISCOVER, 0, NULL);
2121 }
2122 } else
2123#endif /* OPENSSL_NO_DTLS */
2124 sbio = BIO_new_socket(s, BIO_NOCLOSE);
2125
2126 if (nbio_test) {
2127 BIO *test;
2128
2129 test = BIO_new(BIO_f_nbio_test());
2130 sbio = BIO_push(test, sbio);
2131 }
2132
2133 if (c_debug) {
2134 BIO_set_callback(sbio, bio_dump_callback);
2135 BIO_set_callback_arg(sbio, (char *)bio_c_out);
2136 }
2137 if (c_msg) {
2138#ifndef OPENSSL_NO_SSL_TRACE
2139 if (c_msg == 2)
2140 SSL_set_msg_callback(con, SSL_trace);
2141 else
2142#endif
2143 SSL_set_msg_callback(con, msg_cb);
2144 SSL_set_msg_callback_arg(con, bio_c_msg ? bio_c_msg : bio_c_out);
2145 }
2146
2147 if (c_tlsextdebug) {
2148 SSL_set_tlsext_debug_callback(con, tlsext_cb);
2149 SSL_set_tlsext_debug_arg(con, bio_c_out);
2150 }
2151#ifndef OPENSSL_NO_OCSP
2152 if (c_status_req) {
2153 SSL_set_tlsext_status_type(con, TLSEXT_STATUSTYPE_ocsp);
2154 SSL_CTX_set_tlsext_status_cb(ctx, ocsp_resp_cb);
2155 SSL_CTX_set_tlsext_status_arg(ctx, bio_c_out);
2156 }
2157#endif
2158
2159 SSL_set_bio(con, sbio, sbio);
2160 SSL_set_connect_state(con);
2161
2162 /* ok, lets connect */
2163 if (fileno_stdin() > SSL_get_fd(con))
2164 width = fileno_stdin() + 1;
2165 else
2166 width = SSL_get_fd(con) + 1;
2167
2168 read_tty = 1;
2169 write_tty = 0;
2170 tty_on = 0;
2171 read_ssl = 1;
2172 write_ssl = 1;
2173
2174 cbuf_len = 0;
2175 cbuf_off = 0;
2176 sbuf_len = 0;
2177 sbuf_off = 0;
2178
2179 switch ((PROTOCOL_CHOICE) starttls_proto) {
2180 case PROTO_OFF:
2181 break;
2182 case PROTO_LMTP:
2183 case PROTO_SMTP:
2184 {
2185 /*
2186 * This is an ugly hack that does a lot of assumptions. We do
2187 * have to handle multi-line responses which may come in a single
2188 * packet or not. We therefore have to use BIO_gets() which does
2189 * need a buffering BIO. So during the initial chitchat we do
2190 * push a buffering BIO into the chain that is removed again
2191 * later on to not disturb the rest of the s_client operation.
2192 */
2193 int foundit = 0;
2194 BIO *fbio = BIO_new(BIO_f_buffer());
2195
2196 BIO_push(fbio, sbio);
2197 /* Wait for multi-line response to end from LMTP or SMTP */
2198 do {
2199 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2200 } while (mbuf_len > 3 && mbuf[3] == '-');
2201 if (protohost == NULL)
2202 protohost = "mail.example.com";
2203 if (starttls_proto == (int)PROTO_LMTP)
2204 BIO_printf(fbio, "LHLO %s\r\n", protohost);
2205 else
2206 BIO_printf(fbio, "EHLO %s\r\n", protohost);
2207 (void)BIO_flush(fbio);
2208 /*
2209 * Wait for multi-line response to end LHLO LMTP or EHLO SMTP
2210 * response.
2211 */
2212 do {
2213 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2214 if (strstr(mbuf, "STARTTLS"))
2215 foundit = 1;
2216 } while (mbuf_len > 3 && mbuf[3] == '-');
2217 (void)BIO_flush(fbio);
2218 BIO_pop(fbio);
2219 BIO_free(fbio);
2220 if (!foundit)
2221 BIO_printf(bio_err,
2222 "Didn't find STARTTLS in server response,"
2223 " trying anyway...\n");
2224 BIO_printf(sbio, "STARTTLS\r\n");
2225 BIO_read(sbio, sbuf, BUFSIZZ);
2226 }
2227 break;
2228 case PROTO_POP3:
2229 {
2230 BIO_read(sbio, mbuf, BUFSIZZ);
2231 BIO_printf(sbio, "STLS\r\n");
2232 mbuf_len = BIO_read(sbio, sbuf, BUFSIZZ);
2233 if (mbuf_len < 0) {
2234 BIO_printf(bio_err, "BIO_read failed\n");
2235 goto end;
2236 }
2237 }
2238 break;
2239 case PROTO_IMAP:
2240 {
2241 int foundit = 0;
2242 BIO *fbio = BIO_new(BIO_f_buffer());
2243
2244 BIO_push(fbio, sbio);
2245 BIO_gets(fbio, mbuf, BUFSIZZ);
2246 /* STARTTLS command requires CAPABILITY... */
2247 BIO_printf(fbio, ". CAPABILITY\r\n");
2248 (void)BIO_flush(fbio);
2249 /* wait for multi-line CAPABILITY response */
2250 do {
2251 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2252 if (strstr(mbuf, "STARTTLS"))
2253 foundit = 1;
2254 }
2255 while (mbuf_len > 3 && mbuf[0] != '.');
2256 (void)BIO_flush(fbio);
2257 BIO_pop(fbio);
2258 BIO_free(fbio);
2259 if (!foundit)
2260 BIO_printf(bio_err,
2261 "Didn't find STARTTLS in server response,"
2262 " trying anyway...\n");
2263 BIO_printf(sbio, ". STARTTLS\r\n");
2264 BIO_read(sbio, sbuf, BUFSIZZ);
2265 }
2266 break;
2267 case PROTO_FTP:
2268 {
2269 BIO *fbio = BIO_new(BIO_f_buffer());
2270
2271 BIO_push(fbio, sbio);
2272 /* wait for multi-line response to end from FTP */
2273 do {
2274 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2275 }
2276 while (mbuf_len > 3 && (!isdigit(mbuf[0]) || !isdigit(mbuf[1]) || !isdigit(mbuf[2]) || mbuf[3] != ' '));
2277 (void)BIO_flush(fbio);
2278 BIO_pop(fbio);
2279 BIO_free(fbio);
2280 BIO_printf(sbio, "AUTH TLS\r\n");
2281 BIO_read(sbio, sbuf, BUFSIZZ);
2282 }
2283 break;
2284 case PROTO_XMPP:
2285 case PROTO_XMPP_SERVER:
2286 {
2287 int seen = 0;
2288 BIO_printf(sbio, "<stream:stream "
2289 "xmlns:stream='http://etherx.jabber.org/streams' "
2290 "xmlns='jabber:%s' to='%s' version='1.0'>",
2291 starttls_proto == PROTO_XMPP ? "client" : "server",
2292 protohost ? protohost : host);
2293 seen = BIO_read(sbio, mbuf, BUFSIZZ);
2294 if (seen < 0) {
2295 BIO_printf(bio_err, "BIO_read failed\n");
2296 goto end;
2297 }
2298 mbuf[seen] = '\0';
2299 while (!strstr
2300 (mbuf, "<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'")
2301 && !strstr(mbuf,
2302 "<starttls xmlns=\"urn:ietf:params:xml:ns:xmpp-tls\""))
2303 {
2304 seen = BIO_read(sbio, mbuf, BUFSIZZ);
2305
2306 if (seen <= 0)
2307 goto shut;
2308
2309 mbuf[seen] = '\0';
2310 }
2311 BIO_printf(sbio,
2312 "<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'/>");
2313 seen = BIO_read(sbio, sbuf, BUFSIZZ);
2314 if (seen < 0) {
2315 BIO_printf(bio_err, "BIO_read failed\n");
2316 goto shut;
2317 }
2318 sbuf[seen] = '\0';
2319 if (!strstr(sbuf, "<proceed"))
2320 goto shut;
2321 mbuf[0] = '\0';
2322 }
2323 break;
2324 case PROTO_TELNET:
2325 {
2326 static const unsigned char tls_do[] = {
2327 /* IAC DO START_TLS */
2328 255, 253, 46
2329 };
2330 static const unsigned char tls_will[] = {
2331 /* IAC WILL START_TLS */
2332 255, 251, 46
2333 };
2334 static const unsigned char tls_follows[] = {
2335 /* IAC SB START_TLS FOLLOWS IAC SE */
2336 255, 250, 46, 1, 255, 240
2337 };
2338 int bytes;
2339
2340 /* Telnet server should demand we issue START_TLS */
2341 bytes = BIO_read(sbio, mbuf, BUFSIZZ);
2342 if (bytes != 3 || memcmp(mbuf, tls_do, 3) != 0)
2343 goto shut;
2344 /* Agree to issue START_TLS and send the FOLLOWS sub-command */
2345 BIO_write(sbio, tls_will, 3);
2346 BIO_write(sbio, tls_follows, 6);
2347 (void)BIO_flush(sbio);
2348 /* Telnet server also sent the FOLLOWS sub-command */
2349 bytes = BIO_read(sbio, mbuf, BUFSIZZ);
2350 if (bytes != 6 || memcmp(mbuf, tls_follows, 6) != 0)
2351 goto shut;
2352 }
2353 break;
2354 case PROTO_CONNECT:
2355 {
2356 enum {
2357 error_proto, /* Wrong protocol, not even HTTP */
2358 error_connect, /* CONNECT failed */
2359 success
2360 } foundit = error_connect;
2361 BIO *fbio = BIO_new(BIO_f_buffer());
2362
2363 BIO_push(fbio, sbio);
2364 BIO_printf(fbio, "CONNECT %s HTTP/1.0\r\n\r\n", connectstr);
2365 (void)BIO_flush(fbio);
2366 /*
2367 * The first line is the HTTP response. According to RFC 7230,
2368 * it's formatted exactly like this:
2369 *
2370 * HTTP/d.d ddd Reason text\r\n
2371 */
2372 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2373 if (mbuf_len < (int)strlen("HTTP/1.0 200")) {
2374 BIO_printf(bio_err,
2375 "%s: HTTP CONNECT failed, insufficient response "
2376 "from proxy (got %d octets)\n", prog, mbuf_len);
2377 (void)BIO_flush(fbio);
2378 BIO_pop(fbio);
2379 BIO_free(fbio);
2380 goto shut;
2381 }
2382 if (mbuf[8] != ' ') {
2383 BIO_printf(bio_err,
2384 "%s: HTTP CONNECT failed, incorrect response "
2385 "from proxy\n", prog);
2386 foundit = error_proto;
2387 } else if (mbuf[9] != '2') {
2388 BIO_printf(bio_err, "%s: HTTP CONNECT failed: %s ", prog,
2389 &mbuf[9]);
2390 } else {
2391 foundit = success;
2392 }
2393 if (foundit != error_proto) {
2394 /* Read past all following headers */
2395 do {
2396 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2397 } while (mbuf_len > 2);
2398 }
2399 (void)BIO_flush(fbio);
2400 BIO_pop(fbio);
2401 BIO_free(fbio);
2402 if (foundit != success) {
2403 goto shut;
2404 }
2405 }
2406 break;
2407 case PROTO_IRC:
2408 {
2409 int numeric;
2410 BIO *fbio = BIO_new(BIO_f_buffer());
2411
2412 BIO_push(fbio, sbio);
2413 BIO_printf(fbio, "STARTTLS\r\n");
2414 (void)BIO_flush(fbio);
2415 width = SSL_get_fd(con) + 1;
2416
2417 do {
2418 numeric = 0;
2419
2420 FD_ZERO(&readfds);
2421 openssl_fdset(SSL_get_fd(con), &readfds);
2422 timeout.tv_sec = S_CLIENT_IRC_READ_TIMEOUT;
2423 timeout.tv_usec = 0;
2424 /*
2425 * If the IRCd doesn't respond within
2426 * S_CLIENT_IRC_READ_TIMEOUT seconds, assume
2427 * it doesn't support STARTTLS. Many IRCds
2428 * will not give _any_ sort of response to a
2429 * STARTTLS command when it's not supported.
2430 */
2431 if (!BIO_get_buffer_num_lines(fbio)
2432 && !BIO_pending(fbio)
2433 && !BIO_pending(sbio)
2434 && select(width, (void *)&readfds, NULL, NULL,
2435 &timeout) < 1) {
2436 BIO_printf(bio_err,
2437 "Timeout waiting for response (%d seconds).\n",
2438 S_CLIENT_IRC_READ_TIMEOUT);
2439 break;
2440 }
2441
2442 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2443 if (mbuf_len < 1 || sscanf(mbuf, "%*s %d", &numeric) != 1)
2444 break;
2445 /* :example.net 451 STARTTLS :You have not registered */
2446 /* :example.net 421 STARTTLS :Unknown command */
2447 if ((numeric == 451 || numeric == 421)
2448 && strstr(mbuf, "STARTTLS") != NULL) {
2449 BIO_printf(bio_err, "STARTTLS not supported: %s", mbuf);
2450 break;
2451 }
2452 if (numeric == 691) {
2453 BIO_printf(bio_err, "STARTTLS negotiation failed: ");
2454 ERR_print_errors(bio_err);
2455 break;
2456 }
2457 } while (numeric != 670);
2458
2459 (void)BIO_flush(fbio);
2460 BIO_pop(fbio);
2461 BIO_free(fbio);
2462 if (numeric != 670) {
2463 BIO_printf(bio_err, "Server does not support STARTTLS.\n");
2464 ret = 1;
2465 goto shut;
2466 }
2467 }
2468 break;
2469 case PROTO_MYSQL:
2470 {
2471 /* SSL request packet */
2472 static const unsigned char ssl_req[] = {
2473 /* payload_length, sequence_id */
2474 0x20, 0x00, 0x00, 0x01,
2475 /* payload */
2476 /* capability flags, CLIENT_SSL always set */
2477 0x85, 0xae, 0x7f, 0x00,
2478 /* max-packet size */
2479 0x00, 0x00, 0x00, 0x01,
2480 /* character set */
2481 0x21,
2482 /* string[23] reserved (all [0]) */
2483 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
2484 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
2485 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
2486 };
2487 int bytes = 0;
2488 int ssl_flg = 0x800;
2489 int pos;
2490 const unsigned char *packet = (const unsigned char *)sbuf;
2491
2492 /* Receiving Initial Handshake packet. */
2493 bytes = BIO_read(sbio, (void *)packet, BUFSIZZ);
2494 if (bytes < 0) {
2495 BIO_printf(bio_err, "BIO_read failed\n");
2496 goto shut;
2497 /* Packet length[3], Packet number[1] + minimum payload[17] */
2498 } else if (bytes < 21) {
2499 BIO_printf(bio_err, "MySQL packet too short.\n");
2500 goto shut;
2501 } else if (bytes != (4 + packet[0] +
2502 (packet[1] << 8) +
2503 (packet[2] << 16))) {
2504 BIO_printf(bio_err, "MySQL packet length does not match.\n");
2505 goto shut;
2506 /* protocol version[1] */
2507 } else if (packet[4] != 0xA) {
2508 BIO_printf(bio_err,
2509 "Only MySQL protocol version 10 is supported.\n");
2510 goto shut;
2511 }
2512
2513 pos = 5;
2514 /* server version[string+NULL] */
2515 for (;;) {
2516 if (pos >= bytes) {
2517 BIO_printf(bio_err, "Cannot confirm server version. ");
2518 goto shut;
2519 } else if (packet[pos++] == '\0') {
2520 break;
2521 }
2522 }
2523
2524 /* make sure we have at least 15 bytes left in the packet */
2525 if (pos + 15 > bytes) {
2526 BIO_printf(bio_err,
2527 "MySQL server handshake packet is broken.\n");
2528 goto shut;
2529 }
2530
2531 pos += 12; /* skip over conn id[4] + SALT[8] */
2532 if (packet[pos++] != '\0') { /* verify filler */
2533 BIO_printf(bio_err,
2534 "MySQL packet is broken.\n");
2535 goto shut;
2536 }
2537
2538 /* capability flags[2] */
2539 if (!((packet[pos] + (packet[pos + 1] << 8)) & ssl_flg)) {
2540 BIO_printf(bio_err, "MySQL server does not support SSL.\n");
2541 goto shut;
2542 }
2543
2544 /* Sending SSL Handshake packet. */
2545 BIO_write(sbio, ssl_req, sizeof(ssl_req));
2546 (void)BIO_flush(sbio);
2547 }
2548 break;
2549 case PROTO_POSTGRES:
2550 {
2551 static const unsigned char ssl_request[] = {
2552 /* Length SSLRequest */
2553 0, 0, 0, 8, 4, 210, 22, 47
2554 };
2555 int bytes;
2556
2557 /* Send SSLRequest packet */
2558 BIO_write(sbio, ssl_request, 8);
2559 (void)BIO_flush(sbio);
2560
2561 /* Reply will be a single S if SSL is enabled */
2562 bytes = BIO_read(sbio, sbuf, BUFSIZZ);
2563 if (bytes != 1 || sbuf[0] != 'S')
2564 goto shut;
2565 }
2566 break;
2567 case PROTO_NNTP:
2568 {
2569 int foundit = 0;
2570 BIO *fbio = BIO_new(BIO_f_buffer());
2571
2572 BIO_push(fbio, sbio);
2573 BIO_gets(fbio, mbuf, BUFSIZZ);
2574 /* STARTTLS command requires CAPABILITIES... */
2575 BIO_printf(fbio, "CAPABILITIES\r\n");
2576 (void)BIO_flush(fbio);
2577 /* wait for multi-line CAPABILITIES response */
2578 do {
2579 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2580 if (strstr(mbuf, "STARTTLS"))
2581 foundit = 1;
2582 } while (mbuf_len > 1 && mbuf[0] != '.');
2583 (void)BIO_flush(fbio);
2584 BIO_pop(fbio);
2585 BIO_free(fbio);
2586 if (!foundit)
2587 BIO_printf(bio_err,
2588 "Didn't find STARTTLS in server response,"
2589 " trying anyway...\n");
2590 BIO_printf(sbio, "STARTTLS\r\n");
2591 mbuf_len = BIO_read(sbio, mbuf, BUFSIZZ);
2592 if (mbuf_len < 0) {
2593 BIO_printf(bio_err, "BIO_read failed\n");
2594 goto end;
2595 }
2596 mbuf[mbuf_len] = '\0';
2597 if (strstr(mbuf, "382") == NULL) {
2598 BIO_printf(bio_err, "STARTTLS failed: %s", mbuf);
2599 goto shut;
2600 }
2601 }
2602 break;
2603 case PROTO_SIEVE:
2604 {
2605 int foundit = 0;
2606 BIO *fbio = BIO_new(BIO_f_buffer());
2607
2608 BIO_push(fbio, sbio);
2609 /* wait for multi-line response to end from Sieve */
2610 do {
2611 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2612 /*
2613 * According to RFC 5804 § 1.7, capability
2614 * is case-insensitive, make it uppercase
2615 */
2616 if (mbuf_len > 1 && mbuf[0] == '"') {
2617 make_uppercase(mbuf);
2618 if (strncmp(mbuf, "\"STARTTLS\"", 10) == 0)
2619 foundit = 1;
2620 }
2621 } while (mbuf_len > 1 && mbuf[0] == '"');
2622 (void)BIO_flush(fbio);
2623 BIO_pop(fbio);
2624 BIO_free(fbio);
2625 if (!foundit)
2626 BIO_printf(bio_err,
2627 "Didn't find STARTTLS in server response,"
2628 " trying anyway...\n");
2629 BIO_printf(sbio, "STARTTLS\r\n");
2630 mbuf_len = BIO_read(sbio, mbuf, BUFSIZZ);
2631 if (mbuf_len < 0) {
2632 BIO_printf(bio_err, "BIO_read failed\n");
2633 goto end;
2634 }
2635 mbuf[mbuf_len] = '\0';
2636 if (mbuf_len < 2) {
2637 BIO_printf(bio_err, "STARTTLS failed: %s", mbuf);
2638 goto shut;
2639 }
2640 /*
2641 * According to RFC 5804 § 2.2, response codes are case-
2642 * insensitive, make it uppercase but preserve the response.
2643 */
2644 strncpy(sbuf, mbuf, 2);
2645 make_uppercase(sbuf);
2646 if (strncmp(sbuf, "OK", 2) != 0) {
2647 BIO_printf(bio_err, "STARTTLS not supported: %s", mbuf);
2648 goto shut;
2649 }
2650 }
2651 break;
2652 case PROTO_LDAP:
2653 {
2654 /* StartTLS Operation according to RFC 4511 */
2655 static char ldap_tls_genconf[] = "asn1=SEQUENCE:LDAPMessage\n"
2656 "[LDAPMessage]\n"
2657 "messageID=INTEGER:1\n"
2658 "extendedReq=EXPLICIT:23A,IMPLICIT:0C,"
2659 "FORMAT:ASCII,OCT:1.3.6.1.4.1.1466.20037\n";
2660 long errline = -1;
2661 char *genstr = NULL;
2662 int result = -1;
2663 ASN1_TYPE *atyp = NULL;
2664 BIO *ldapbio = BIO_new(BIO_s_mem());
2665 CONF *cnf = NCONF_new(NULL);
2666
2667 if (cnf == NULL) {
2668 BIO_free(ldapbio);
2669 goto end;
2670 }
2671 BIO_puts(ldapbio, ldap_tls_genconf);
2672 if (NCONF_load_bio(cnf, ldapbio, &errline) <= 0) {
2673 BIO_free(ldapbio);
2674 NCONF_free(cnf);
2675 if (errline <= 0) {
2676 BIO_printf(bio_err, "NCONF_load_bio failed\n");
2677 goto end;
2678 } else {
2679 BIO_printf(bio_err, "Error on line %ld\n", errline);
2680 goto end;
2681 }
2682 }
2683 BIO_free(ldapbio);
2684 genstr = NCONF_get_string(cnf, "default", "asn1");
2685 if (genstr == NULL) {
2686 NCONF_free(cnf);
2687 BIO_printf(bio_err, "NCONF_get_string failed\n");
2688 goto end;
2689 }
2690 atyp = ASN1_generate_nconf(genstr, cnf);
2691 if (atyp == NULL) {
2692 NCONF_free(cnf);
2693 BIO_printf(bio_err, "ASN1_generate_nconf failed\n");
2694 goto end;
2695 }
2696 NCONF_free(cnf);
2697
2698 /* Send SSLRequest packet */
2699 BIO_write(sbio, atyp->value.sequence->data,
2700 atyp->value.sequence->length);
2701 (void)BIO_flush(sbio);
2702 ASN1_TYPE_free(atyp);
2703
2704 mbuf_len = BIO_read(sbio, mbuf, BUFSIZZ);
2705 if (mbuf_len < 0) {
2706 BIO_printf(bio_err, "BIO_read failed\n");
2707 goto end;
2708 }
2709 result = ldap_ExtendedResponse_parse(mbuf, mbuf_len);
2710 if (result < 0) {
2711 BIO_printf(bio_err, "ldap_ExtendedResponse_parse failed\n");
2712 goto shut;
2713 } else if (result > 0) {
2714 BIO_printf(bio_err, "STARTTLS failed, LDAP Result Code: %i\n",
2715 result);
2716 goto shut;
2717 }
2718 mbuf_len = 0;
2719 }
2720 break;
2721 }
2722
2723 if (early_data_file != NULL
2724 && ((SSL_get0_session(con) != NULL
2725 && SSL_SESSION_get_max_early_data(SSL_get0_session(con)) > 0)
2726 || (psksess != NULL
2727 && SSL_SESSION_get_max_early_data(psksess) > 0))) {
2728 BIO *edfile = BIO_new_file(early_data_file, "r");
2729 size_t readbytes, writtenbytes;
2730 int finish = 0;
2731
2732 if (edfile == NULL) {
2733 BIO_printf(bio_err, "Cannot open early data file\n");
2734 goto shut;
2735 }
2736
2737 while (!finish) {
2738 if (!BIO_read_ex(edfile, cbuf, BUFSIZZ, &readbytes))
2739 finish = 1;
2740
2741 while (!SSL_write_early_data(con, cbuf, readbytes, &writtenbytes)) {
2742 switch (SSL_get_error(con, 0)) {
2743 case SSL_ERROR_WANT_WRITE:
2744 case SSL_ERROR_WANT_ASYNC:
2745 case SSL_ERROR_WANT_READ:
2746 /* Just keep trying - busy waiting */
2747 continue;
2748 default:
2749 BIO_printf(bio_err, "Error writing early data\n");
2750 BIO_free(edfile);
2751 ERR_print_errors(bio_err);
2752 goto shut;
2753 }
2754 }
2755 }
2756
2757 BIO_free(edfile);
2758 }
2759
2760 for (;;) {
2761 FD_ZERO(&readfds);
2762 FD_ZERO(&writefds);
2763
2764 if (SSL_is_dtls(con) && DTLSv1_get_timeout(con, &timeout))
2765 timeoutp = &timeout;
2766 else
2767 timeoutp = NULL;
2768
2769 if (!SSL_is_init_finished(con) && SSL_total_renegotiations(con) == 0
2770 && SSL_get_key_update_type(con) == SSL_KEY_UPDATE_NONE) {
2771 in_init = 1;
2772 tty_on = 0;
2773 } else {
2774 tty_on = 1;
2775 if (in_init) {
2776 in_init = 0;
2777
2778 if (c_brief) {
2779 BIO_puts(bio_err, "CONNECTION ESTABLISHED\n");
2780 print_ssl_summary(con);
2781 }
2782
2783 print_stuff(bio_c_out, con, full_log);
2784 if (full_log > 0)
2785 full_log--;
2786
2787 if (starttls_proto) {
2788 BIO_write(bio_err, mbuf, mbuf_len);
2789 /* We don't need to know any more */
2790 if (!reconnect)
2791 starttls_proto = PROTO_OFF;
2792 }
2793
2794 if (reconnect) {
2795 reconnect--;
2796 BIO_printf(bio_c_out,
2797 "drop connection and then reconnect\n");
2798 do_ssl_shutdown(con);
2799 SSL_set_connect_state(con);
2800 BIO_closesocket(SSL_get_fd(con));
2801 goto re_start;
2802 }
2803 }
2804 }
2805
2806 ssl_pending = read_ssl && SSL_has_pending(con);
2807
2808 if (!ssl_pending) {
2809#if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS)
2810 if (tty_on) {
2811 /*
2812 * Note that select() returns when read _would not block_,
2813 * and EOF satisfies that. To avoid a CPU-hogging loop,
2814 * set the flag so we exit.
2815 */
2816 if (read_tty && !at_eof)
2817 openssl_fdset(fileno_stdin(), &readfds);
2818#if !defined(OPENSSL_SYS_VMS)
2819 if (write_tty)
2820 openssl_fdset(fileno_stdout(), &writefds);
2821#endif
2822 }
2823 if (read_ssl)
2824 openssl_fdset(SSL_get_fd(con), &readfds);
2825 if (write_ssl)
2826 openssl_fdset(SSL_get_fd(con), &writefds);
2827#else
2828 if (!tty_on || !write_tty) {
2829 if (read_ssl)
2830 openssl_fdset(SSL_get_fd(con), &readfds);
2831 if (write_ssl)
2832 openssl_fdset(SSL_get_fd(con), &writefds);
2833 }
2834#endif
2835
2836 /*
2837 * Note: under VMS with SOCKETSHR the second parameter is
2838 * currently of type (int *) whereas under other systems it is
2839 * (void *) if you don't have a cast it will choke the compiler:
2840 * if you do have a cast then you can either go for (int *) or
2841 * (void *).
2842 */
2843#if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
2844 /*
2845 * Under Windows/DOS we make the assumption that we can always
2846 * write to the tty: therefore if we need to write to the tty we
2847 * just fall through. Otherwise we timeout the select every
2848 * second and see if there are any keypresses. Note: this is a
2849 * hack, in a proper Windows application we wouldn't do this.
2850 */
2851 i = 0;
2852 if (!write_tty) {
2853 if (read_tty) {
2854 tv.tv_sec = 1;
2855 tv.tv_usec = 0;
2856 i = select(width, (void *)&readfds, (void *)&writefds,
2857 NULL, &tv);
2858 if (!i && (!has_stdin_waiting() || !read_tty))
2859 continue;
2860 } else
2861 i = select(width, (void *)&readfds, (void *)&writefds,
2862 NULL, timeoutp);
2863 }
2864#else
2865 i = select(width, (void *)&readfds, (void *)&writefds,
2866 NULL, timeoutp);
2867#endif
2868 if (i < 0) {
2869 BIO_printf(bio_err, "bad select %d\n",
2870 get_last_socket_error());
2871 goto shut;
2872 }
2873 }
2874
2875 if (SSL_is_dtls(con) && DTLSv1_handle_timeout(con) > 0)
2876 BIO_printf(bio_err, "TIMEOUT occurred\n");
2877
2878 if (!ssl_pending && FD_ISSET(SSL_get_fd(con), &writefds)) {
2879 k = SSL_write(con, &(cbuf[cbuf_off]), (unsigned int)cbuf_len);
2880 switch (SSL_get_error(con, k)) {
2881 case SSL_ERROR_NONE:
2882 cbuf_off += k;
2883 cbuf_len -= k;
2884 if (k <= 0)
2885 goto end;
2886 /* we have done a write(con,NULL,0); */
2887 if (cbuf_len <= 0) {
2888 read_tty = 1;
2889 write_ssl = 0;
2890 } else { /* if (cbuf_len > 0) */
2891
2892 read_tty = 0;
2893 write_ssl = 1;
2894 }
2895 break;
2896 case SSL_ERROR_WANT_WRITE:
2897 BIO_printf(bio_c_out, "write W BLOCK\n");
2898 write_ssl = 1;
2899 read_tty = 0;
2900 break;
2901 case SSL_ERROR_WANT_ASYNC:
2902 BIO_printf(bio_c_out, "write A BLOCK\n");
2903 wait_for_async(con);
2904 write_ssl = 1;
2905 read_tty = 0;
2906 break;
2907 case SSL_ERROR_WANT_READ:
2908 BIO_printf(bio_c_out, "write R BLOCK\n");
2909 write_tty = 0;
2910 read_ssl = 1;
2911 write_ssl = 0;
2912 break;
2913 case SSL_ERROR_WANT_X509_LOOKUP:
2914 BIO_printf(bio_c_out, "write X BLOCK\n");
2915 break;
2916 case SSL_ERROR_ZERO_RETURN:
2917 if (cbuf_len != 0) {
2918 BIO_printf(bio_c_out, "shutdown\n");
2919 ret = 0;
2920 goto shut;
2921 } else {
2922 read_tty = 1;
2923 write_ssl = 0;
2924 break;
2925 }
2926
2927 case SSL_ERROR_SYSCALL:
2928 if ((k != 0) || (cbuf_len != 0)) {
2929 BIO_printf(bio_err, "write:errno=%d\n",
2930 get_last_socket_error());
2931 goto shut;
2932 } else {
2933 read_tty = 1;
2934 write_ssl = 0;
2935 }
2936 break;
2937 case SSL_ERROR_WANT_ASYNC_JOB:
2938 /* This shouldn't ever happen in s_client - treat as an error */
2939 case SSL_ERROR_SSL:
2940 ERR_print_errors(bio_err);
2941 goto shut;
2942 }
2943 }
2944#if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_VMS)
2945 /* Assume Windows/DOS/BeOS can always write */
2946 else if (!ssl_pending && write_tty)
2947#else
2948 else if (!ssl_pending && FD_ISSET(fileno_stdout(), &writefds))
2949#endif
2950 {
2951#ifdef CHARSET_EBCDIC
2952 ascii2ebcdic(&(sbuf[sbuf_off]), &(sbuf[sbuf_off]), sbuf_len);
2953#endif
2954 i = raw_write_stdout(&(sbuf[sbuf_off]), sbuf_len);
2955
2956 if (i <= 0) {
2957 BIO_printf(bio_c_out, "DONE\n");
2958 ret = 0;
2959 goto shut;
2960 }
2961
2962 sbuf_len -= i;
2963 sbuf_off += i;
2964 if (sbuf_len <= 0) {
2965 read_ssl = 1;
2966 write_tty = 0;
2967 }
2968 } else if (ssl_pending || FD_ISSET(SSL_get_fd(con), &readfds)) {
2969#ifdef RENEG
2970 {
2971 static int iiii;
2972 if (++iiii == 52) {
2973 SSL_renegotiate(con);
2974 iiii = 0;
2975 }
2976 }
2977#endif
2978 k = SSL_read(con, sbuf, 1024 /* BUFSIZZ */ );
2979
2980 switch (SSL_get_error(con, k)) {
2981 case SSL_ERROR_NONE:
2982 if (k <= 0)
2983 goto end;
2984 sbuf_off = 0;
2985 sbuf_len = k;
2986
2987 read_ssl = 0;
2988 write_tty = 1;
2989 break;
2990 case SSL_ERROR_WANT_ASYNC:
2991 BIO_printf(bio_c_out, "read A BLOCK\n");
2992 wait_for_async(con);
2993 write_tty = 0;
2994 read_ssl = 1;
2995 if ((read_tty == 0) && (write_ssl == 0))
2996 write_ssl = 1;
2997 break;
2998 case SSL_ERROR_WANT_WRITE:
2999 BIO_printf(bio_c_out, "read W BLOCK\n");
3000 write_ssl = 1;
3001 read_tty = 0;
3002 break;
3003 case SSL_ERROR_WANT_READ:
3004 BIO_printf(bio_c_out, "read R BLOCK\n");
3005 write_tty = 0;
3006 read_ssl = 1;
3007 if ((read_tty == 0) && (write_ssl == 0))
3008 write_ssl = 1;
3009 break;
3010 case SSL_ERROR_WANT_X509_LOOKUP:
3011 BIO_printf(bio_c_out, "read X BLOCK\n");
3012 break;
3013 case SSL_ERROR_SYSCALL:
3014 ret = get_last_socket_error();
3015 if (c_brief)
3016 BIO_puts(bio_err, "CONNECTION CLOSED BY SERVER\n");
3017 else
3018 BIO_printf(bio_err, "read:errno=%d\n", ret);
3019 goto shut;
3020 case SSL_ERROR_ZERO_RETURN:
3021 BIO_printf(bio_c_out, "closed\n");
3022 ret = 0;
3023 goto shut;
3024 case SSL_ERROR_WANT_ASYNC_JOB:
3025 /* This shouldn't ever happen in s_client. Treat as an error */
3026 case SSL_ERROR_SSL:
3027 ERR_print_errors(bio_err);
3028 goto shut;
3029 }
3030 }
3031/* OPENSSL_SYS_MSDOS includes OPENSSL_SYS_WINDOWS */
3032#if defined(OPENSSL_SYS_MSDOS)
3033 else if (has_stdin_waiting())
3034#else
3035 else if (FD_ISSET(fileno_stdin(), &readfds))
3036#endif
3037 {
3038 if (crlf) {
3039 int j, lf_num;
3040
3041 i = raw_read_stdin(cbuf, BUFSIZZ / 2);
3042 lf_num = 0;
3043 /* both loops are skipped when i <= 0 */
3044 for (j = 0; j < i; j++)
3045 if (cbuf[j] == '\n')
3046 lf_num++;
3047 for (j = i - 1; j >= 0; j--) {
3048 cbuf[j + lf_num] = cbuf[j];
3049 if (cbuf[j] == '\n') {
3050 lf_num--;
3051 i++;
3052 cbuf[j + lf_num] = '\r';
3053 }
3054 }
3055 assert(lf_num == 0);
3056 } else
3057 i = raw_read_stdin(cbuf, BUFSIZZ);
3058#if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS)
3059 if (i == 0)
3060 at_eof = 1;
3061#endif
3062
3063 if ((!c_ign_eof) && ((i <= 0) || (cbuf[0] == 'Q' && cmdletters))) {
3064 BIO_printf(bio_err, "DONE\n");
3065 ret = 0;
3066 goto shut;
3067 }
3068
3069 if ((!c_ign_eof) && (cbuf[0] == 'R' && cmdletters)) {
3070 BIO_printf(bio_err, "RENEGOTIATING\n");
3071 SSL_renegotiate(con);
3072 cbuf_len = 0;
3073 } else if (!c_ign_eof && (cbuf[0] == 'K' || cbuf[0] == 'k' )
3074 && cmdletters) {
3075 BIO_printf(bio_err, "KEYUPDATE\n");
3076 SSL_key_update(con,
3077 cbuf[0] == 'K' ? SSL_KEY_UPDATE_REQUESTED
3078 : SSL_KEY_UPDATE_NOT_REQUESTED);
3079 cbuf_len = 0;
3080 }
3081#ifndef OPENSSL_NO_HEARTBEATS
3082 else if ((!c_ign_eof) && (cbuf[0] == 'B' && cmdletters)) {
3083 BIO_printf(bio_err, "HEARTBEATING\n");
3084 SSL_heartbeat(con);
3085 cbuf_len = 0;
3086 }
3087#endif
3088 else {
3089 cbuf_len = i;
3090 cbuf_off = 0;
3091#ifdef CHARSET_EBCDIC
3092 ebcdic2ascii(cbuf, cbuf, i);
3093#endif
3094 }
3095
3096 write_ssl = 1;
3097 read_tty = 0;
3098 }
3099 }
3100
3101 ret = 0;
3102 shut:
3103 if (in_init)
3104 print_stuff(bio_c_out, con, full_log);
3105 do_ssl_shutdown(con);
3106
3107 /*
3108 * If we ended with an alert being sent, but still with data in the
3109 * network buffer to be read, then calling BIO_closesocket() will
3110 * result in a TCP-RST being sent. On some platforms (notably
3111 * Windows) then this will result in the peer immediately abandoning
3112 * the connection including any buffered alert data before it has
3113 * had a chance to be read. Shutting down the sending side first,
3114 * and then closing the socket sends TCP-FIN first followed by
3115 * TCP-RST. This seems to allow the peer to read the alert data.
3116 */
3117 shutdown(SSL_get_fd(con), 1); /* SHUT_WR */
3118 /*
3119 * We just said we have nothing else to say, but it doesn't mean that
3120 * the other side has nothing. It's even recommended to consume incoming
3121 * data. [In testing context this ensures that alerts are passed on...]
3122 */
3123 timeout.tv_sec = 0;
3124 timeout.tv_usec = 500000; /* some extreme round-trip */
3125 do {
3126 FD_ZERO(&readfds);
3127 openssl_fdset(s, &readfds);
3128 } while (select(s + 1, &readfds, NULL, NULL, &timeout) > 0
3129 && BIO_read(sbio, sbuf, BUFSIZZ) > 0);
3130
3131 BIO_closesocket(SSL_get_fd(con));
3132 end:
3133 if (con != NULL) {
3134 if (prexit != 0)
3135 print_stuff(bio_c_out, con, 1);
3136 SSL_free(con);
3137 }
3138 SSL_SESSION_free(psksess);
3139#if !defined(OPENSSL_NO_NEXTPROTONEG)
3140 OPENSSL_free(next_proto.data);
3141#endif
3142 SSL_CTX_free(ctx);
3143 set_keylog_file(NULL, NULL);
3144 X509_free(cert);
3145 sk_X509_CRL_pop_free(crls, X509_CRL_free);
3146 EVP_PKEY_free(key);
3147 sk_X509_pop_free(chain, X509_free);
3148 OPENSSL_free(pass);
3149#ifndef OPENSSL_NO_SRP
3150 OPENSSL_free(srp_arg.srppassin);
3151#endif
3152 OPENSSL_free(connectstr);
3153 OPENSSL_free(bindstr);
3154 OPENSSL_free(host);
3155 OPENSSL_free(port);
3156 X509_VERIFY_PARAM_free(vpm);
3157 ssl_excert_free(exc);
3158 sk_OPENSSL_STRING_free(ssl_args);
3159 sk_OPENSSL_STRING_free(dane_tlsa_rrset);
3160 SSL_CONF_CTX_free(cctx);
3161 OPENSSL_clear_free(cbuf, BUFSIZZ);
3162 OPENSSL_clear_free(sbuf, BUFSIZZ);
3163 OPENSSL_clear_free(mbuf, BUFSIZZ);
3164 release_engine(e);
3165 BIO_free(bio_c_out);
3166 bio_c_out = NULL;
3167 BIO_free(bio_c_msg);
3168 bio_c_msg = NULL;
3169 return ret;
3170}
3171
3172static void print_stuff(BIO *bio, SSL *s, int full)
3173{
3174 X509 *peer = NULL;
3175 STACK_OF(X509) *sk;
3176 const SSL_CIPHER *c;
3177 int i, istls13 = (SSL_version(s) == TLS1_3_VERSION);
3178 long verify_result;
3179#ifndef OPENSSL_NO_COMP
3180 const COMP_METHOD *comp, *expansion;
3181#endif
3182 unsigned char *exportedkeymat;
3183#ifndef OPENSSL_NO_CT
3184 const SSL_CTX *ctx = SSL_get_SSL_CTX(s);
3185#endif
3186
3187 if (full) {
3188 int got_a_chain = 0;
3189
3190 sk = SSL_get_peer_cert_chain(s);
3191 if (sk != NULL) {
3192 got_a_chain = 1;
3193
3194 BIO_printf(bio, "---\nCertificate chain\n");
3195 for (i = 0; i < sk_X509_num(sk); i++) {
3196 BIO_printf(bio, "%2d s:", i);
3197 X509_NAME_print_ex(bio, X509_get_subject_name(sk_X509_value(sk, i)), 0, get_nameopt());
3198 BIO_puts(bio, "\n");
3199 BIO_printf(bio, " i:");
3200 X509_NAME_print_ex(bio, X509_get_issuer_name(sk_X509_value(sk, i)), 0, get_nameopt());
3201 BIO_puts(bio, "\n");
3202 if (c_showcerts)
3203 PEM_write_bio_X509(bio, sk_X509_value(sk, i));
3204 }
3205 }
3206
3207 BIO_printf(bio, "---\n");
3208 peer = SSL_get_peer_certificate(s);
3209 if (peer != NULL) {
3210 BIO_printf(bio, "Server certificate\n");
3211
3212 /* Redundant if we showed the whole chain */
3213 if (!(c_showcerts && got_a_chain))
3214 PEM_write_bio_X509(bio, peer);
3215 dump_cert_text(bio, peer);
3216 } else {
3217 BIO_printf(bio, "no peer certificate available\n");
3218 }
3219 print_ca_names(bio, s);
3220
3221 ssl_print_sigalgs(bio, s);
3222 ssl_print_tmp_key(bio, s);
3223
3224#ifndef OPENSSL_NO_CT
3225 /*
3226 * When the SSL session is anonymous, or resumed via an abbreviated
3227 * handshake, no SCTs are provided as part of the handshake. While in
3228 * a resumed session SCTs may be present in the session's certificate,
3229 * no callbacks are invoked to revalidate these, and in any case that
3230 * set of SCTs may be incomplete. Thus it makes little sense to
3231 * attempt to display SCTs from a resumed session's certificate, and of
3232 * course none are associated with an anonymous peer.
3233 */
3234 if (peer != NULL && !SSL_session_reused(s) && SSL_ct_is_enabled(s)) {
3235 const STACK_OF(SCT) *scts = SSL_get0_peer_scts(s);
3236 int sct_count = scts != NULL ? sk_SCT_num(scts) : 0;
3237
3238 BIO_printf(bio, "---\nSCTs present (%i)\n", sct_count);
3239 if (sct_count > 0) {
3240 const CTLOG_STORE *log_store = SSL_CTX_get0_ctlog_store(ctx);
3241
3242 BIO_printf(bio, "---\n");
3243 for (i = 0; i < sct_count; ++i) {
3244 SCT *sct = sk_SCT_value(scts, i);
3245
3246 BIO_printf(bio, "SCT validation status: %s\n",
3247 SCT_validation_status_string(sct));
3248 SCT_print(sct, bio, 0, log_store);
3249 if (i < sct_count - 1)
3250 BIO_printf(bio, "\n---\n");
3251 }
3252 BIO_printf(bio, "\n");
3253 }
3254 }
3255#endif
3256
3257 BIO_printf(bio,
3258 "---\nSSL handshake has read %ju bytes "
3259 "and written %ju bytes\n",
3260 BIO_number_read(SSL_get_rbio(s)),
3261 BIO_number_written(SSL_get_wbio(s)));
3262 }
3263 print_verify_detail(s, bio);
3264 BIO_printf(bio, (SSL_session_reused(s) ? "---\nReused, " : "---\nNew, "));
3265 c = SSL_get_current_cipher(s);
3266 BIO_printf(bio, "%s, Cipher is %s\n",
3267 SSL_CIPHER_get_version(c), SSL_CIPHER_get_name(c));
3268 if (peer != NULL) {
3269 EVP_PKEY *pktmp;
3270
3271 pktmp = X509_get0_pubkey(peer);
3272 BIO_printf(bio, "Server public key is %d bit\n",
3273 EVP_PKEY_bits(pktmp));
3274 }
3275 BIO_printf(bio, "Secure Renegotiation IS%s supported\n",
3276 SSL_get_secure_renegotiation_support(s) ? "" : " NOT");
3277#ifndef OPENSSL_NO_COMP
3278 comp = SSL_get_current_compression(s);
3279 expansion = SSL_get_current_expansion(s);
3280 BIO_printf(bio, "Compression: %s\n",
3281 comp ? SSL_COMP_get_name(comp) : "NONE");
3282 BIO_printf(bio, "Expansion: %s\n",
3283 expansion ? SSL_COMP_get_name(expansion) : "NONE");
3284#endif
3285
3286#ifdef SSL_DEBUG
3287 {
3288 /* Print out local port of connection: useful for debugging */
3289 int sock;
3290 union BIO_sock_info_u info;
3291
3292 sock = SSL_get_fd(s);
3293 if ((info.addr = BIO_ADDR_new()) != NULL
3294 && BIO_sock_info(sock, BIO_SOCK_INFO_ADDRESS, &info)) {
3295 BIO_printf(bio_c_out, "LOCAL PORT is %u\n",
3296 ntohs(BIO_ADDR_rawport(info.addr)));
3297 }
3298 BIO_ADDR_free(info.addr);
3299 }
3300#endif
3301
3302#if !defined(OPENSSL_NO_NEXTPROTONEG)
3303 if (next_proto.status != -1) {
3304 const unsigned char *proto;
3305 unsigned int proto_len;
3306 SSL_get0_next_proto_negotiated(s, &proto, &proto_len);
3307 BIO_printf(bio, "Next protocol: (%d) ", next_proto.status);
3308 BIO_write(bio, proto, proto_len);
3309 BIO_write(bio, "\n", 1);
3310 }
3311#endif
3312 {
3313 const unsigned char *proto;
3314 unsigned int proto_len;
3315 SSL_get0_alpn_selected(s, &proto, &proto_len);
3316 if (proto_len > 0) {
3317 BIO_printf(bio, "ALPN protocol: ");
3318 BIO_write(bio, proto, proto_len);
3319 BIO_write(bio, "\n", 1);
3320 } else
3321 BIO_printf(bio, "No ALPN negotiated\n");
3322 }
3323
3324#ifndef OPENSSL_NO_SRTP
3325 {
3326 SRTP_PROTECTION_PROFILE *srtp_profile =
3327 SSL_get_selected_srtp_profile(s);
3328
3329 if (srtp_profile)
3330 BIO_printf(bio, "SRTP Extension negotiated, profile=%s\n",
3331 srtp_profile->name);
3332 }
3333#endif
3334
3335 if (istls13) {
3336 switch (SSL_get_early_data_status(s)) {
3337 case SSL_EARLY_DATA_NOT_SENT:
3338 BIO_printf(bio, "Early data was not sent\n");
3339 break;
3340
3341 case SSL_EARLY_DATA_REJECTED:
3342 BIO_printf(bio, "Early data was rejected\n");
3343 break;
3344
3345 case SSL_EARLY_DATA_ACCEPTED:
3346 BIO_printf(bio, "Early data was accepted\n");
3347 break;
3348
3349 }
3350
3351 /*
3352 * We also print the verify results when we dump session information,
3353 * but in TLSv1.3 we may not get that right away (or at all) depending
3354 * on when we get a NewSessionTicket. Therefore we print it now as well.
3355 */
3356 verify_result = SSL_get_verify_result(s);
3357 BIO_printf(bio, "Verify return code: %ld (%s)\n", verify_result,
3358 X509_verify_cert_error_string(verify_result));
3359 } else {
3360 /* In TLSv1.3 we do this on arrival of a NewSessionTicket */
3361 SSL_SESSION_print(bio, SSL_get_session(s));
3362 }
3363
3364 if (SSL_get_session(s) != NULL && keymatexportlabel != NULL) {
3365 BIO_printf(bio, "Keying material exporter:\n");
3366 BIO_printf(bio, " Label: '%s'\n", keymatexportlabel);
3367 BIO_printf(bio, " Length: %i bytes\n", keymatexportlen);
3368 exportedkeymat = app_malloc(keymatexportlen, "export key");
3369 if (!SSL_export_keying_material(s, exportedkeymat,
3370 keymatexportlen,
3371 keymatexportlabel,
3372 strlen(keymatexportlabel),
3373 NULL, 0, 0)) {
3374 BIO_printf(bio, " Error\n");
3375 } else {
3376 BIO_printf(bio, " Keying material: ");
3377 for (i = 0; i < keymatexportlen; i++)
3378 BIO_printf(bio, "%02X", exportedkeymat[i]);
3379 BIO_printf(bio, "\n");
3380 }
3381 OPENSSL_free(exportedkeymat);
3382 }
3383 BIO_printf(bio, "---\n");
3384 X509_free(peer);
3385 /* flush, or debugging output gets mixed with http response */
3386 (void)BIO_flush(bio);
3387}
3388
3389# ifndef OPENSSL_NO_OCSP
3390static int ocsp_resp_cb(SSL *s, void *arg)
3391{
3392 const unsigned char *p;
3393 int len;
3394 OCSP_RESPONSE *rsp;
3395 len = SSL_get_tlsext_status_ocsp_resp(s, &p);
3396 BIO_puts(arg, "OCSP response: ");
3397 if (p == NULL) {
3398 BIO_puts(arg, "no response sent\n");
3399 return 1;
3400 }
3401 rsp = d2i_OCSP_RESPONSE(NULL, &p, len);
3402 if (rsp == NULL) {
3403 BIO_puts(arg, "response parse error\n");
3404 BIO_dump_indent(arg, (char *)p, len, 4);
3405 return 0;
3406 }
3407 BIO_puts(arg, "\n======================================\n");
3408 OCSP_RESPONSE_print(arg, rsp, 0);
3409 BIO_puts(arg, "======================================\n");
3410 OCSP_RESPONSE_free(rsp);
3411 return 1;
3412}
3413# endif
3414
3415static int ldap_ExtendedResponse_parse(const char *buf, long rem)
3416{
3417 const unsigned char *cur, *end;
3418 long len;
3419 int tag, xclass, inf, ret = -1;
3420
3421 cur = (const unsigned char *)buf;
3422 end = cur + rem;
3423
3424 /*
3425 * From RFC 4511:
3426 *
3427 * LDAPMessage ::= SEQUENCE {
3428 * messageID MessageID,
3429 * protocolOp CHOICE {
3430 * ...
3431 * extendedResp ExtendedResponse,
3432 * ... },
3433 * controls [0] Controls OPTIONAL }
3434 *
3435 * ExtendedResponse ::= [APPLICATION 24] SEQUENCE {
3436 * COMPONENTS OF LDAPResult,
3437 * responseName [10] LDAPOID OPTIONAL,
3438 * responseValue [11] OCTET STRING OPTIONAL }
3439 *
3440 * LDAPResult ::= SEQUENCE {
3441 * resultCode ENUMERATED {
3442 * success (0),
3443 * ...
3444 * other (80),
3445 * ... },
3446 * matchedDN LDAPDN,
3447 * diagnosticMessage LDAPString,
3448 * referral [3] Referral OPTIONAL }
3449 */
3450
3451 /* pull SEQUENCE */
3452 inf = ASN1_get_object(&cur, &len, &tag, &xclass, rem);
3453 if (inf != V_ASN1_CONSTRUCTED || tag != V_ASN1_SEQUENCE ||
3454 (rem = end - cur, len > rem)) {
3455 BIO_printf(bio_err, "Unexpected LDAP response\n");
3456 goto end;
3457 }
3458
3459 rem = len; /* ensure that we don't overstep the SEQUENCE */
3460
3461 /* pull MessageID */
3462 inf = ASN1_get_object(&cur, &len, &tag, &xclass, rem);
3463 if (inf != V_ASN1_UNIVERSAL || tag != V_ASN1_INTEGER ||
3464 (rem = end - cur, len > rem)) {
3465 BIO_printf(bio_err, "No MessageID\n");
3466 goto end;
3467 }
3468
3469 cur += len; /* shall we check for MessageId match or just skip? */
3470
3471 /* pull [APPLICATION 24] */
3472 rem = end - cur;
3473 inf = ASN1_get_object(&cur, &len, &tag, &xclass, rem);
3474 if (inf != V_ASN1_CONSTRUCTED || xclass != V_ASN1_APPLICATION ||
3475 tag != 24) {
3476 BIO_printf(bio_err, "Not ExtendedResponse\n");
3477 goto end;
3478 }
3479
3480 /* pull resultCode */
3481 rem = end - cur;
3482 inf = ASN1_get_object(&cur, &len, &tag, &xclass, rem);
3483 if (inf != V_ASN1_UNIVERSAL || tag != V_ASN1_ENUMERATED || len == 0 ||
3484 (rem = end - cur, len > rem)) {
3485 BIO_printf(bio_err, "Not LDAPResult\n");
3486 goto end;
3487 }
3488
3489 /* len should always be one, but just in case... */
3490 for (ret = 0, inf = 0; inf < len; inf++) {
3491 ret <<= 8;
3492 ret |= cur[inf];
3493 }
3494 /* There is more data, but we don't care... */
3495 end:
3496 return ret;
3497}
3498
3499/*
3500 * Host dNS Name verifier: used for checking that the hostname is in dNS format
3501 * before setting it as SNI
3502 */
3503static int is_dNS_name(const char *host)
3504{
3505 const size_t MAX_LABEL_LENGTH = 63;
3506 size_t i;
3507 int isdnsname = 0;
3508 size_t length = strlen(host);
3509 size_t label_length = 0;
3510 int all_numeric = 1;
3511
3512 /*
3513 * Deviation from strict DNS name syntax, also check names with '_'
3514 * Check DNS name syntax, any '-' or '.' must be internal,
3515 * and on either side of each '.' we can't have a '-' or '.'.
3516 *
3517 * If the name has just one label, we don't consider it a DNS name.
3518 */
3519 for (i = 0; i < length && label_length < MAX_LABEL_LENGTH; ++i) {
3520 char c = host[i];
3521
3522 if ((c >= 'a' && c <= 'z')
3523 || (c >= 'A' && c <= 'Z')
3524 || c == '_') {
3525 label_length += 1;
3526 all_numeric = 0;
3527 continue;
3528 }
3529
3530 if (c >= '0' && c <= '9') {
3531 label_length += 1;
3532 continue;
3533 }
3534
3535 /* Dot and hyphen cannot be first or last. */
3536 if (i > 0 && i < length - 1) {
3537 if (c == '-') {
3538 label_length += 1;
3539 continue;
3540 }
3541 /*
3542 * Next to a dot the preceding and following characters must not be
3543 * another dot or a hyphen. Otherwise, record that the name is
3544 * plausible, since it has two or more labels.
3545 */
3546 if (c == '.'
3547 && host[i + 1] != '.'
3548 && host[i - 1] != '-'
3549 && host[i + 1] != '-') {
3550 label_length = 0;
3551 isdnsname = 1;
3552 continue;
3553 }
3554 }
3555 isdnsname = 0;
3556 break;
3557 }
3558
3559 /* dNS name must not be all numeric and labels must be shorter than 64 characters. */
3560 isdnsname &= !all_numeric && !(label_length == MAX_LABEL_LENGTH);
3561
3562 return isdnsname;
3563}
3564#endif /* OPENSSL_NO_SOCK */
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