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846e33c7 1/*
33388b44 2 * Copyright 1995-2020 The OpenSSL Project Authors. All Rights Reserved.
c80149d9 3 * Copyright 2005 Nokia. All rights reserved.
a661b653 4 *
dffa7520 5 * Licensed under the Apache License 2.0 (the "License"). You may not use
846e33c7
RS		 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
a661b653 9 */
846e33c7 10
07016a8a 11#include "e_os.h"
ddac1974 12#include <ctype.h>
8c197cc5
UM		 13#include <stdio.h>
14#include <stdlib.h>
15#include <string.h>
cddd424a 16#include <errno.h>
be1bd923 17#include <openssl/e_os2.h>
7e1b7485 18
f9e55034
MC		 19#ifndef OPENSSL_NO_SOCK
20
0f113f3e
MC		 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 */
bc36ee62 27#if defined(OPENSSL_SYS_VMS_DECC) && !defined(__U_INT)
0f113f3e 28# define __U_INT
7d7d2cbc
UM		 29typedef unsigned int u_int;
30#endif
31
d02b48c6 32#include "apps.h"
dab2cd68 33#include "progs.h"
ec577822
BM		 34#include <openssl/x509.h>
35#include <openssl/ssl.h>
36#include <openssl/err.h>
37#include <openssl/pem.h>
1372965e 38#include <openssl/rand.h>
67c8e7f4 39#include <openssl/ocsp.h>
1e26a8ba 40#include <openssl/bn.h>
49b26f54 41#include <openssl/trace.h>
5e6f9775 42#include <openssl/async.h>
edc032b5 43#ifndef OPENSSL_NO_SRP
0f113f3e 44# include <openssl/srp.h>
edc032b5 45#endif
dd696a55
RP		 46#ifndef OPENSSL_NO_CT
47# include <openssl/ct.h>
48#endif
d02b48c6 49#include "s_apps.h"
36d16f8e 50#include "timeouts.h"
0e97f1e1 51#include "internal/sockets.h"
d02b48c6 52
efc943be
EK		 53#if defined(__has_feature)
54# if __has_feature(memory_sanitizer)
55# include <sanitizer/msan_interface.h>
56# endif
57#endif
58
852c2ed2
RS		 59DEFINE_STACK_OF(X509)
60DEFINE_STACK_OF(X509_CRL)
61DEFINE_STACK_OF(X509_NAME)
62DEFINE_STACK_OF(SCT)
63DEFINE_STACK_OF_STRING()
64
d02b48c6
RE		 65#undef BUFSIZZ
66#define BUFSIZZ 1024*8
cfb4f1ef 67#define S_CLIENT_IRC_READ_TIMEOUT 8
d02b48c6 68
cddd424a 69static char *prog;
7e1b7485 70static int c_debug = 0;
0f113f3e 71static int c_showcerts = 0;
0f113f3e
MC		 72static char *keymatexportlabel = NULL;
73static int keymatexportlen = 20;
0f113f3e 74static BIO *bio_c_out = NULL;
0f113f3e 75static int c_quiet = 0;
be62b22b 76static char *sess_out = NULL;
e261bdd1 77static SSL_SESSION *psksess = NULL;
d02b48c6 78
0d4d5ab8 79static void print_stuff(BIO *berr, SSL *con, int full);
3e41ac35 80#ifndef OPENSSL_NO_OCSP
7e1b7485 81static int ocsp_resp_cb(SSL *s, void *arg);
3e41ac35 82#endif
398b0bbd 83static int ldap_ExtendedResponse_parse(const char *buf, long rem);
8e981051 84static int is_dNS_name(const char *host);
7e1b7485 85
cddd424a
VD		 86static int saved_errno;
87
88static void save_errno(void)
89{
90 saved_errno = errno;
91 errno = 0;
92}
93
94static int restore_errno(void)
95{
96 int ret = errno;
97 errno = saved_errno;
98 return ret;
99}
100
ddac1974 101/* Default PSK identity and key */
0f113f3e 102static char *psk_identity = "Client_identity";
ddac1974 103
14e35350 104#ifndef OPENSSL_NO_PSK
ddac1974 105static unsigned int psk_client_cb(SSL *ssl, const char *hint, char *identity,
0f113f3e
MC		 106 unsigned int max_identity_len,
107 unsigned char *psk,
108 unsigned int max_psk_len)
109{
0f113f3e 110 int ret;
6ec6d520
DSH		 111 long key_len;
112 unsigned char *key;
0f113f3e
MC		 113
114 if (c_debug)
115 BIO_printf(bio_c_out, "psk_client_cb\n");
116 if (!hint) {
117 /* no ServerKeyExchange message */
118 if (c_debug)
119 BIO_printf(bio_c_out,
120 "NULL received PSK identity hint, continuing anyway\n");
2234212c 121 } else if (c_debug) {
0f113f3e 122 BIO_printf(bio_c_out, "Received PSK identity hint '%s'\n", hint);
2234212c 123 }
0f113f3e
MC		 124
125 /*
126 * lookup PSK identity and PSK key based on the given identity hint here
127 */
128 ret = BIO_snprintf(identity, max_identity_len, "%s", psk_identity);
129 if (ret < 0 || (unsigned int)ret > max_identity_len)
130 goto out_err;
131 if (c_debug)
132 BIO_printf(bio_c_out, "created identity '%s' len=%d\n", identity,
133 ret);
6ec6d520
DSH		 134
135 /* convert the PSK key to binary */
136 key = OPENSSL_hexstr2buf(psk_key, &key_len);
137 if (key == NULL) {
138 BIO_printf(bio_err, "Could not convert PSK key '%s' to buffer\n",
0f113f3e 139 psk_key);
0f113f3e
MC		 140 return 0;
141 }
96a5d7fd 142 if (max_psk_len > INT_MAX || key_len > (long)max_psk_len) {
0f113f3e 143 BIO_printf(bio_err,
6ec6d520
DSH		 144 "psk buffer of callback is too small (%d) for key (%ld)\n",
145 max_psk_len, key_len);
146 OPENSSL_free(key);
0f113f3e
MC		 147 return 0;
148 }
ddac1974 149
6ec6d520
DSH		 150 memcpy(psk, key, key_len);
151 OPENSSL_free(key);
ddac1974 152
0f113f3e 153 if (c_debug)
6ec6d520 154 BIO_printf(bio_c_out, "created PSK len=%ld\n", key_len);
0f113f3e 155
6ec6d520 156 return key_len;
ddac1974 157 out_err:
0f113f3e
MC		 158 if (c_debug)
159 BIO_printf(bio_err, "Error in PSK client callback\n");
160 return 0;
161}
ddac1974
NL		 162#endif
163
adfc3786
MC		 164const unsigned char tls13_aes128gcmsha256_id[] = { 0x13, 0x01 };
165const unsigned char tls13_aes256gcmsha384_id[] = { 0x13, 0x02 };
5ffff599 166
e261bdd1
MC		 167static int psk_use_session_cb(SSL *s, const EVP_MD *md,
168 const unsigned char **id, size_t *idlen,
169 SSL_SESSION **sess)
170{
5ffff599
MC		 171 SSL_SESSION *usesess = NULL;
172 const SSL_CIPHER *cipher = NULL;
173
174 if (psksess != NULL) {
175 SSL_SESSION_up_ref(psksess);
176 usesess = psksess;
177 } else {
178 long key_len;
179 unsigned char *key = OPENSSL_hexstr2buf(psk_key, &key_len);
180
181 if (key == NULL) {
182 BIO_printf(bio_err, "Could not convert PSK key '%s' to buffer\n",
183 psk_key);
184 return 0;
185 }
186
e73c6eae
MC		 187 /* We default to SHA-256 */
188 cipher = SSL_CIPHER_find(s, tls13_aes128gcmsha256_id);
5ffff599 189 if (cipher == NULL) {
e73c6eae 190 BIO_printf(bio_err, "Error finding suitable ciphersuite\n");
bdd5f12e 191 OPENSSL_free(key);
e73c6eae 192 return 0;
5ffff599 193 }
e73c6eae 194
5ffff599
MC		 195 usesess = SSL_SESSION_new();
196 if (usesess == NULL
197 || !SSL_SESSION_set1_master_key(usesess, key, key_len)
198 || !SSL_SESSION_set_cipher(usesess, cipher)
199 || !SSL_SESSION_set_protocol_version(usesess, TLS1_3_VERSION)) {
200 OPENSSL_free(key);
201 goto err;
202 }
203 OPENSSL_free(key);
204 }
205
206 cipher = SSL_SESSION_get0_cipher(usesess);
e261bdd1 207 if (cipher == NULL)
5ffff599 208 goto err;
e261bdd1 209
dc87d5a9
MC		 210 if (md != NULL && SSL_CIPHER_get_handshake_digest(cipher) != md) {
211 /* PSK not usable, ignore it */
212 *id = NULL;
213 *idlen = 0;
214 *sess = NULL;
215 SSL_SESSION_free(usesess);
216 } else {
217 *sess = usesess;
218 *id = (unsigned char *)psk_identity;
219 *idlen = strlen(psk_identity);
220 }
e261bdd1
MC		 221
222 return 1;
5ffff599
MC		 223
224 err:
225 SSL_SESSION_free(usesess);
226 return 0;
e261bdd1
MC		 227}
228
ed3883d2
BM		 229/* This is a context that we pass to callbacks */
230typedef struct tlsextctx_st {
0f113f3e
MC		 231 BIO *biodebug;
232 int ack;
ed3883d2
BM		 233} tlsextctx;
234
6d23cf97 235static int ssl_servername_cb(SSL *s, int *ad, void *arg)
0f113f3e
MC		 236{
237 tlsextctx *p = (tlsextctx *) arg;
238 const char *hn = SSL_get_servername(s, TLSEXT_NAMETYPE_host_name);
239 if (SSL_get_servername_type(s) != -1)
240 p->ack = !SSL_session_reused(s) && hn != NULL;
241 else
242 BIO_printf(bio_err, "Can't use SSL_get_servername\n");
243
244 return SSL_TLSEXT_ERR_OK;
245}
ee2ffc27 246
e481f9b9 247#ifndef OPENSSL_NO_SRP
edc032b5
BL		 248
249/* This is a context that we pass to all callbacks */
0f113f3e
MC		 250typedef struct srp_arg_st {
251 char *srppassin;
252 char *srplogin;
253 int msg; /* copy from c_msg */
254 int debug; /* copy from c_debug */
255 int amp; /* allow more groups */
bde136c8 256 int strength; /* minimal size for N */
0f113f3e
MC		 257} SRP_ARG;
258
f2fc3075 259static int srp_Verify_N_and_g(const BIGNUM *N, const BIGNUM *g)
0f113f3e
MC		 260{
261 BN_CTX *bn_ctx = BN_CTX_new();
262 BIGNUM *p = BN_new();
263 BIGNUM *r = BN_new();
264 int ret =
265 g != NULL && N != NULL && bn_ctx != NULL && BN_is_odd(N) &&
42619397 266 BN_check_prime(N, bn_ctx, NULL) == 1 &&
0f113f3e
MC		 267 p != NULL && BN_rshift1(p, N) &&
268 /* p = (N-1)/2 */
42619397 269 BN_check_prime(p, bn_ctx, NULL) == 1 &&
0f113f3e
MC		 270 r != NULL &&
271 /* verify g^((N-1)/2) == -1 (mod N) */
272 BN_mod_exp(r, g, p, N, bn_ctx) &&
273 BN_add_word(r, 1) && BN_cmp(r, N) == 0;
274
23a1d5e9
RS		 275 BN_free(r);
276 BN_free(p);
277 BN_CTX_free(bn_ctx);
0f113f3e
MC		 278 return ret;
279}
edc032b5 280
c80fd6b2
MC		 281/*-
282 * This callback is used here for two purposes:
283 * - extended debugging
284 * - making some primality tests for unknown groups
285 * The callback is only called for a non default group.
286 *
287 * An application does not need the call back at all if
bde136c8 288 * only the standard groups are used. In real life situations,
0f113f3e
MC		 289 * client and server already share well known groups,
290 * thus there is no need to verify them.
c80fd6b2 291 * Furthermore, in case that a server actually proposes a group that
0f113f3e
MC		 292 * is not one of those defined in RFC 5054, it is more appropriate
293 * to add the group to a static list and then compare since
c80fd6b2
MC		 294 * primality tests are rather cpu consuming.
295 */
f2fc3075 296
6d23cf97 297static int ssl_srp_verify_param_cb(SSL *s, void *arg)
0f113f3e
MC		 298{
299 SRP_ARG *srp_arg = (SRP_ARG *)arg;
300 BIGNUM *N = NULL, *g = NULL;
75ebbd9a
RS		 301
302 if (((N = SSL_get_srp_N(s)) == NULL) || ((g = SSL_get_srp_g(s)) == NULL))
0f113f3e
MC		 303 return 0;
304 if (srp_arg->debug || srp_arg->msg || srp_arg->amp == 1) {
305 BIO_printf(bio_err, "SRP parameters:\n");
306 BIO_printf(bio_err, "\tN=");
307 BN_print(bio_err, N);
308 BIO_printf(bio_err, "\n\tg=");
309 BN_print(bio_err, g);
310 BIO_printf(bio_err, "\n");
311 }
312
313 if (SRP_check_known_gN_param(g, N))
314 return 1;
315
316 if (srp_arg->amp == 1) {
317 if (srp_arg->debug)
318 BIO_printf(bio_err,
319 "SRP param N and g are not known params, going to check deeper.\n");
320
321 /*
322 * The srp_moregroups is a real debugging feature. Implementors
323 * should rather add the value to the known ones. The minimal size
324 * has already been tested.
325 */
326 if (BN_num_bits(g) <= BN_BITS && srp_Verify_N_and_g(N, g))
327 return 1;
328 }
329 BIO_printf(bio_err, "SRP param N and g rejected.\n");
330 return 0;
331}
edc032b5 332
e481f9b9 333# define PWD_STRLEN 1024
0f113f3e
MC		 334
335static char *ssl_give_srp_client_pwd_cb(SSL *s, void *arg)
336{
337 SRP_ARG *srp_arg = (SRP_ARG *)arg;
68dc6824 338 char *pass = app_malloc(PWD_STRLEN + 1, "SRP password buffer");
0f113f3e
MC		 339 PW_CB_DATA cb_tmp;
340 int l;
341
342 cb_tmp.password = (char *)srp_arg->srppassin;
343 cb_tmp.prompt_info = "SRP user";
344 if ((l = password_callback(pass, PWD_STRLEN, 0, &cb_tmp)) < 0) {
345 BIO_printf(bio_err, "Can't read Password\n");
346 OPENSSL_free(pass);
347 return NULL;
348 }
349 *(pass + l) = '\0';
350
351 return pass;
352}
353
e481f9b9 354#endif
7e1b7485 355
e481f9b9 356#ifndef OPENSSL_NO_NEXTPROTONEG
ee2ffc27
BL		 357/* This the context that we pass to next_proto_cb */
358typedef struct tlsextnextprotoctx_st {
0f113f3e 359 unsigned char *data;
817cd0d5 360 size_t len;
0f113f3e 361 int status;
ee2ffc27
BL		 362} tlsextnextprotoctx;
363
364static tlsextnextprotoctx next_proto;
365
0f113f3e
MC		 366static int next_proto_cb(SSL *s, unsigned char **out, unsigned char *outlen,
367 const unsigned char *in, unsigned int inlen,
368 void *arg)
369{
370 tlsextnextprotoctx *ctx = arg;
371
372 if (!c_quiet) {
373 /* We can assume that |in| is syntactically valid. */
374 unsigned i;
375 BIO_printf(bio_c_out, "Protocols advertised by server: ");
376 for (i = 0; i < inlen;) {
377 if (i)
378 BIO_write(bio_c_out, ", ", 2);
379 BIO_write(bio_c_out, &in[i + 1], in[i]);
380 i += in[i] + 1;
381 }
382 BIO_write(bio_c_out, "\n", 1);
383 }
384
385 ctx->status =
386 SSL_select_next_proto(out, outlen, in, inlen, ctx->data, ctx->len);
387 return SSL_TLSEXT_ERR_OK;
388}
e481f9b9 389#endif /* ndef OPENSSL_NO_NEXTPROTONEG */
0f113f3e
MC		 390
391static int serverinfo_cli_parse_cb(SSL *s, unsigned int ext_type,
392 const unsigned char *in, size_t inlen,
393 int *al, void *arg)
85c67492 394{
0f113f3e
MC		 395 char pem_name[100];
396 unsigned char ext_buf[4 + 65536];
397
398 /* Reconstruct the type/len fields prior to extension data */
3a63c0ed
AP		 399 inlen &= 0xffff; /* for formal memcmpy correctness */
400 ext_buf[0] = (unsigned char)(ext_type >> 8);
401 ext_buf[1] = (unsigned char)(ext_type);
402 ext_buf[2] = (unsigned char)(inlen >> 8);
403 ext_buf[3] = (unsigned char)(inlen);
0f113f3e
MC		 404 memcpy(ext_buf + 4, in, inlen);
405
406 BIO_snprintf(pem_name, sizeof(pem_name), "SERVERINFO FOR EXTENSION %d",
407 ext_type);
408 PEM_write_bio(bio_c_out, pem_name, "", ext_buf, 4 + inlen);
409 return 1;
410}
411
cddd424a
VD		 412/*
413 * Hex decoder that tolerates optional whitespace. Returns number of bytes
414 * produced, advances inptr to end of input string.
415 */
416static ossl_ssize_t hexdecode(const char **inptr, void *result)
417{
418 unsigned char **out = (unsigned char **)result;
419 const char *in = *inptr;
d6073e27 420 unsigned char *ret = app_malloc(strlen(in) / 2, "hexdecode");
cddd424a
VD		 421 unsigned char *cp = ret;
422 uint8_t byte;
423 int nibble = 0;
424
425 if (ret == NULL)
426 return -1;
427
428 for (byte = 0; *in; ++in) {
49445f21 429 int x;
cddd424a 430
18295f0c 431 if (isspace(_UC(*in)))
cddd424a 432 continue;
49445f21
RS		 433 x = OPENSSL_hexchar2int(*in);
434 if (x < 0) {
cddd424a
VD		 435 OPENSSL_free(ret);
436 return 0;
437 }
49445f21 438 byte |= (char)x;
cddd424a
VD		 439 if ((nibble ^= 1) == 0) {
440 *cp++ = byte;
441 byte = 0;
442 } else {
443 byte <<= 4;
444 }
445 }
446 if (nibble != 0) {
447 OPENSSL_free(ret);
448 return 0;
449 }
450 *inptr = in;
451
452 return cp - (*out = ret);
453}
454
455/*
456 * Decode unsigned 0..255, returns 1 on success, <= 0 on failure. Advances
457 * inptr to next field skipping leading whitespace.
458 */
459static ossl_ssize_t checked_uint8(const char **inptr, void *out)
460{
461 uint8_t *result = (uint8_t *)out;
462 const char *in = *inptr;
463 char *endp;
464 long v;
465 int e;
466
467 save_errno();
468 v = strtol(in, &endp, 10);
469 e = restore_errno();
470
471 if (((v == LONG_MIN || v == LONG_MAX) && e == ERANGE) ||
18295f0c 472 endp == in || !isspace(_UC(*endp)) ||
cddd424a
VD		 473 v != (*result = (uint8_t) v)) {
474 return -1;
475 }
18295f0c 476 for (in = endp; isspace(_UC(*in)); ++in)
cddd424a
VD		 477 continue;
478
479 *inptr = in;
480 return 1;
481}
482
7ff970ef
RS		 483struct tlsa_field {
484 void *var;
485 const char *name;
486 ossl_ssize_t (*parser)(const char **, void *);
487};
488
cddd424a
VD		 489static int tlsa_import_rr(SSL *con, const char *rrdata)
490{
7ff970ef
RS		 491 /* Not necessary to re-init these values; the "parsers" do that. */
492 static uint8_t usage;
493 static uint8_t selector;
494 static uint8_t mtype;
495 static unsigned char *data;
f232d6ec 496 static struct tlsa_field tlsa_fields[] = {
cddd424a
VD		 497 { &usage, "usage", checked_uint8 },
498 { &selector, "selector", checked_uint8 },
499 { &mtype, "mtype", checked_uint8 },
500 { &data, "data", hexdecode },
501 { NULL, }
502 };
503 struct tlsa_field *f;
7ff970ef
RS		 504 int ret;
505 const char *cp = rrdata;
506 ossl_ssize_t len = 0;
cddd424a
VD		 507
508 for (f = tlsa_fields; f->var; ++f) {
509 /* Returns number of bytes produced, advances cp to next field */
510 if ((len = f->parser(&cp, f->var)) <= 0) {
511 BIO_printf(bio_err, "%s: warning: bad TLSA %s field in: %s\n",
512 prog, f->name, rrdata);
513 return 0;
514 }
515 }
516 /* The data field is last, so len is its length */
517 ret = SSL_dane_tlsa_add(con, usage, selector, mtype, data, len);
518 OPENSSL_free(data);
519
520 if (ret == 0) {
521 ERR_print_errors(bio_err);
522 BIO_printf(bio_err, "%s: warning: unusable TLSA rrdata: %s\n",
523 prog, rrdata);
524 return 0;
525 }
526 if (ret < 0) {
527 ERR_print_errors(bio_err);
528 BIO_printf(bio_err, "%s: warning: error loading TLSA rrdata: %s\n",
529 prog, rrdata);
530 return 0;
531 }
532 return ret;
533}
534
535static int tlsa_import_rrset(SSL *con, STACK_OF(OPENSSL_STRING) *rrset)
536{
537 int num = sk_OPENSSL_STRING_num(rrset);
538 int count = 0;
539 int i;
540
541 for (i = 0; i < num; ++i) {
542 char *rrdata = sk_OPENSSL_STRING_value(rrset, i);
543 if (tlsa_import_rr(con, rrdata) > 0)
544 ++count;
545 }
546 return count > 0;
547}
548
7e1b7485
RS		 549typedef enum OPTION_choice {
550 OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
ebc01683 551 OPT_4, OPT_6, OPT_HOST, OPT_PORT, OPT_CONNECT, OPT_BIND, OPT_UNIX,
a7c04f2b 552 OPT_XMPPHOST, OPT_VERIFY, OPT_NAMEOPT,
7e1b7485
RS		 553 OPT_CERT, OPT_CRL, OPT_CRL_DOWNLOAD, OPT_SESS_OUT, OPT_SESS_IN,
554 OPT_CERTFORM, OPT_CRLFORM, OPT_VERIFY_RET_ERROR, OPT_VERIFY_QUIET,
555 OPT_BRIEF, OPT_PREXIT, OPT_CRLF, OPT_QUIET, OPT_NBIO,
3ee1eac2 556 OPT_SSL_CLIENT_ENGINE, OPT_IGN_EOF, OPT_NO_IGN_EOF,
3a4e9367 557 OPT_DEBUG, OPT_TLSEXTDEBUG, OPT_STATUS, OPT_WDEBUG,
7e1b7485
RS		 558 OPT_MSG, OPT_MSGFILE, OPT_ENGINE, OPT_TRACE, OPT_SECURITY_DEBUG,
559 OPT_SECURITY_DEBUG_VERBOSE, OPT_SHOWCERTS, OPT_NBIO_TEST, OPT_STATE,
72257204 560 OPT_PSK_IDENTITY, OPT_PSK, OPT_PSK_SESS,
bde136c8
F		 561#ifndef OPENSSL_NO_SRP
562 OPT_SRPUSER, OPT_SRPPASS, OPT_SRP_STRENGTH, OPT_SRP_LATEUSER,
563 OPT_SRP_MOREGROUPS,
564#endif
565 OPT_SSL3, OPT_SSL_CONFIG,
582a17d6 566 OPT_TLS1_3, OPT_TLS1_2, OPT_TLS1_1, OPT_TLS1, OPT_DTLS, OPT_DTLS1,
8ccc2377 567 OPT_DTLS1_2, OPT_SCTP, OPT_TIMEOUT, OPT_MTU, OPT_KEYFORM, OPT_PASS,
fd3397fc
RL		 568 OPT_CERT_CHAIN, OPT_KEY, OPT_RECONNECT, OPT_BUILD_CHAIN,
569 OPT_NEXTPROTONEG, OPT_ALPN,
570 OPT_CAPATH, OPT_NOCAPATH, OPT_CHAINCAPATH, OPT_VERIFYCAPATH,
571 OPT_CAFILE, OPT_NOCAFILE, OPT_CHAINCAFILE, OPT_VERIFYCAFILE,
572 OPT_CASTORE, OPT_NOCASTORE, OPT_CHAINCASTORE, OPT_VERIFYCASTORE,
28e5ea88 573 OPT_SERVERINFO, OPT_STARTTLS, OPT_SERVERNAME, OPT_NOSERVERNAME, OPT_ASYNC,
8176431d 574 OPT_USE_SRTP, OPT_KEYMATEXPORT, OPT_KEYMATEXPORTLEN, OPT_PROTOHOST,
cf72c757
F		 575 OPT_MAXFRAGLEN, OPT_MAX_SEND_FRAG, OPT_SPLIT_SEND_FRAG, OPT_MAX_PIPELINES,
576 OPT_READ_BUF, OPT_KEYLOG_FILE, OPT_EARLY_DATA, OPT_REQCAFILE,
7e1b7485
RS		 577 OPT_V_ENUM,
578 OPT_X_ENUM,
09b90e0e 579 OPT_S_ENUM, OPT_IGNORE_UNEXPECTED_EOF,
69738dad
M		 580 OPT_FALLBACKSCSV, OPT_NOCMDS, OPT_PROXY, OPT_PROXY_USER, OPT_PROXY_PASS,
581 OPT_DANE_TLSA_DOMAIN,
dd696a55 582#ifndef OPENSSL_NO_CT
43341433 583 OPT_CT, OPT_NOCT, OPT_CTLOG_FILE,
dd696a55 584#endif
3ee1eac2 585 OPT_DANE_TLSA_RRDATA, OPT_DANE_EE_NO_NAME,
32097b33 586 OPT_ENABLE_PHA,
09d62b33 587 OPT_SCTP_LABEL_BUG,
6bd4e3f2 588 OPT_R_ENUM, OPT_PROV_ENUM
7e1b7485
RS		 589} OPTION_CHOICE;
590
44c83ebd 591const OPTIONS s_client_options[] = {
92de469f
RS		 592 {OPT_HELP_STR, 1, '-', "Usage: %s [options] [host:port]\n"},
593
5388f986 594 OPT_SECTION("General"),
7e1b7485 595 {"help", OPT_HELP, '-', "Display this summary"},
5388f986
RS		 596#ifndef OPENSSL_NO_ENGINE
597 {"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"},
598 {"ssl_client_engine", OPT_SSL_CLIENT_ENGINE, 's',
599 "Specify engine to be used for client certificate operations"},
600#endif
2a2b1e41 601 {"ssl_config", OPT_SSL_CONFIG, 's', "Use specified section for SSL_CTX configuration"},
5388f986
RS		 602#ifndef OPENSSL_NO_CT
603 {"ct", OPT_CT, '-', "Request and parse SCTs (also enables OCSP stapling)"},
604 {"noct", OPT_NOCT, '-', "Do not request or parse SCTs (default)"},
605 {"ctlogfile", OPT_CTLOG_FILE, '<', "CT log list CONF file"},
606#endif
607
608 OPT_SECTION("Network"),
7e1b7485
RS		 609 {"host", OPT_HOST, 's', "Use -connect instead"},
610 {"port", OPT_PORT, 'p', "Use -connect instead"},
611 {"connect", OPT_CONNECT, 's',
ab69ac00 612 "TCP/IP where to connect (default is :" PORT ")"},
ebc01683 613 {"bind", OPT_BIND, 's', "bind local address for connection"},
552bf8ec
MT		 614 {"proxy", OPT_PROXY, 's',
615 "Connect to via specified proxy to the real server"},
69738dad
M		 616 {"proxy_user", OPT_PROXY_USER, 's', "UserID for proxy authentication"},
617 {"proxy_pass", OPT_PROXY_PASS, 's', "Proxy authentication password source"},
ab69ac00 618#ifdef AF_UNIX
a22f9c84 619 {"unix", OPT_UNIX, 's', "Connect over the specified Unix-domain socket"},
ab69ac00
RL		 620#endif
621 {"4", OPT_4, '-', "Use IPv4 only"},
fe08bd76 622#ifdef AF_INET6
ab69ac00 623 {"6", OPT_6, '-', "Use IPv6 only"},
fe08bd76 624#endif
5388f986
RS		 625 {"maxfraglen", OPT_MAXFRAGLEN, 'p',
626 "Enable Maximum Fragment Length Negotiation (len values: 512, 1024, 2048 and 4096)"},
627 {"max_send_frag", OPT_MAX_SEND_FRAG, 'p', "Maximum Size of send frames "},
628 {"split_send_frag", OPT_SPLIT_SEND_FRAG, 'p',
629 "Size used to split data for encrypt pipelines"},
630 {"max_pipelines", OPT_MAX_PIPELINES, 'p',
631 "Maximum number of encrypt/decrypt pipelines to be used"},
632 {"read_buf", OPT_READ_BUF, 'p',
633 "Default read buffer size to be used for connections"},
634 {"fallback_scsv", OPT_FALLBACKSCSV, '-', "Send the fallback SCSV"},
635
636 OPT_SECTION("Identity"),
2b264aee 637 {"cert", OPT_CERT, '<', "Client certificate file to use"},
7e1b7485 638 {"certform", OPT_CERTFORM, 'F',
6d382c74 639 "Client certificate file format (PEM/DER/P12); has no effect"},
2b264aee
DDO		 640 {"cert_chain", OPT_CERT_CHAIN, '<',
641 "Client certificate chain file (in PEM format)"},
642 {"build_chain", OPT_BUILD_CHAIN, '-', "Build client certificate chain"},
643 {"key", OPT_KEY, 's', "Private key file to use; default is: -cert file"},
6d382c74 644 {"keyform", OPT_KEYFORM, 'E', "Key format (ENGINE, other values ignored)"},
7e1b7485 645 {"pass", OPT_PASS, 's', "Private key file pass phrase source"},
2b264aee
DDO		 646 {"verify", OPT_VERIFY, 'p', "Turn on peer certificate verification"},
647 {"nameopt", OPT_NAMEOPT, 's', "Certificate subject/issuer name printing options"},
7e1b7485
RS		 648 {"CApath", OPT_CAPATH, '/', "PEM format directory of CA's"},
649 {"CAfile", OPT_CAFILE, '<', "PEM format file of CA's"},
f07f6e40 650 {"CAstore", OPT_CASTORE, ':', "URI to store of CA's"},
2b6bcb70
MC		 651 {"no-CAfile", OPT_NOCAFILE, '-',
652 "Do not load the default certificates file"},
653 {"no-CApath", OPT_NOCAPATH, '-',
654 "Do not load certificates from the default certificates directory"},
f07f6e40 655 {"no-CAstore", OPT_NOCASTORE, '-',
fd3397fc 656 "Do not load certificates from the default certificates store"},
d2add501 657 {"requestCAfile", OPT_REQCAFILE, '<',
5969a2dd 658 "PEM format file of CA names to send to the server"},
cddd424a
VD		 659 {"dane_tlsa_domain", OPT_DANE_TLSA_DOMAIN, 's', "DANE TLSA base domain"},
660 {"dane_tlsa_rrdata", OPT_DANE_TLSA_RRDATA, 's',
661 "DANE TLSA rrdata presentation form"},
c4fbed6c
VD		 662 {"dane_ee_no_namechecks", OPT_DANE_EE_NO_NAME, '-',
663 "Disable name checks when matching DANE-EE(3) TLSA records"},
5388f986
RS		 664 {"psk_identity", OPT_PSK_IDENTITY, 's', "PSK identity"},
665 {"psk", OPT_PSK, 's', "PSK in hex (without 0x)"},
666 {"psk_session", OPT_PSK_SESS, '<', "File to read PSK SSL session from"},
667 {"name", OPT_PROTOHOST, 's',
668 "Hostname to use for \"-starttls lmtp\", \"-starttls smtp\" or \"-starttls xmpp[-server]\""},
669
670 OPT_SECTION("Session"),
7e1b7485
RS		 671 {"reconnect", OPT_RECONNECT, '-',
672 "Drop and re-make the connection with the same Session-ID"},
5388f986
RS		 673 {"sess_out", OPT_SESS_OUT, '>', "File to write SSL session to"},
674 {"sess_in", OPT_SESS_IN, '<', "File to read SSL session from"},
675
676 OPT_SECTION("Input/Output"),
7e1b7485
RS		 677 {"crlf", OPT_CRLF, '-', "Convert LF from terminal into CRLF"},
678 {"quiet", OPT_QUIET, '-', "No s_client output"},
679 {"ign_eof", OPT_IGN_EOF, '-', "Ignore input eof (default when -quiet)"},
680 {"no_ign_eof", OPT_NO_IGN_EOF, '-', "Don't ignore input eof"},
7e1b7485 681 {"starttls", OPT_STARTTLS, 's',
cfb4f1ef 682 "Use the appropriate STARTTLS command before starting TLS"},
898ea7b8 683 {"xmpphost", OPT_XMPPHOST, 's',
8176431d 684 "Alias of -name option for \"-starttls xmpp[-server]\""},
9a13bb38
RS		 685 {"brief", OPT_BRIEF, '-',
686 "Restrict output to brief summary of connection parameters"},
687 {"prexit", OPT_PREXIT, '-',
688 "Print session information when the program exits"},
5388f986
RS		 689
690 OPT_SECTION("Debug"),
691 {"showcerts", OPT_SHOWCERTS, '-',
692 "Show all certificates sent by the server"},
693 {"debug", OPT_DEBUG, '-', "Extra output"},
694 {"msg", OPT_MSG, '-', "Show protocol messages"},
695 {"msgfile", OPT_MSGFILE, '>',
696 "File to send output of -msg or -trace, instead of stdout"},
697 {"nbio_test", OPT_NBIO_TEST, '-', "More ssl protocol testing"},
698 {"state", OPT_STATE, '-', "Print the ssl states"},
699 {"keymatexport", OPT_KEYMATEXPORT, 's',
700 "Export keying material using label"},
701 {"keymatexportlen", OPT_KEYMATEXPORTLEN, 'p',
702 "Export len bytes of keying material (default 20)"},
9a13bb38
RS		 703 {"security_debug", OPT_SECURITY_DEBUG, '-',
704 "Enable security debug messages"},
705 {"security_debug_verbose", OPT_SECURITY_DEBUG_VERBOSE, '-',
706 "Output more security debug output"},
5388f986
RS		 707#ifndef OPENSSL_NO_SSL_TRACE
708 {"trace", OPT_TRACE, '-', "Show trace output of protocol messages"},
709#endif
710#ifdef WATT32
711 {"wdebug", OPT_WDEBUG, '-', "WATT-32 tcp debugging"},
712#endif
713 {"keylogfile", OPT_KEYLOG_FILE, '>', "Write TLS secrets to file"},
9c3bcfa0
RS		 714 {"nocommands", OPT_NOCMDS, '-', "Do not use interactive command letters"},
715 {"servername", OPT_SERVERNAME, 's',
481afe2a 716 "Set TLS extension servername (SNI) in ClientHello (default)"},
11ba87f2
MC		 717 {"noservername", OPT_NOSERVERNAME, '-',
718 "Do not send the server name (SNI) extension in the ClientHello"},
9c3bcfa0
RS		 719 {"tlsextdebug", OPT_TLSEXTDEBUG, '-',
720 "Hex dump of all TLS extensions received"},
09b90e0e
DB		 721 {"ignore_unexpected_eof", OPT_IGNORE_UNEXPECTED_EOF, '-',
722 "Do not treat lack of close_notify from a peer as an error"},
3e41ac35 723#ifndef OPENSSL_NO_OCSP
9c3bcfa0 724 {"status", OPT_STATUS, '-', "Request certificate status from server"},
3e41ac35 725#endif
9c3bcfa0
RS		 726 {"serverinfo", OPT_SERVERINFO, 's',
727 "types Send empty ClientHello extensions (comma-separated numbers)"},
728 {"alpn", OPT_ALPN, 's',
729 "Enable ALPN extension, considering named protocols supported (comma-separated list)"},
7e25dd6d 730 {"async", OPT_ASYNC, '-', "Support asynchronous operation"},
5388f986
RS		 731 {"nbio", OPT_NBIO, '-', "Use non-blocking IO"},
732
733 OPT_SECTION("Protocol and version"),
9c3bcfa0
RS		 734#ifndef OPENSSL_NO_SSL3
735 {"ssl3", OPT_SSL3, '-', "Just use SSLv3"},
736#endif
6b01bed2
VD		 737#ifndef OPENSSL_NO_TLS1
738 {"tls1", OPT_TLS1, '-', "Just use TLSv1"},
739#endif
740#ifndef OPENSSL_NO_TLS1_1
741 {"tls1_1", OPT_TLS1_1, '-', "Just use TLSv1.1"},
742#endif
743#ifndef OPENSSL_NO_TLS1_2
744 {"tls1_2", OPT_TLS1_2, '-', "Just use TLSv1.2"},
745#endif
582a17d6
MC		 746#ifndef OPENSSL_NO_TLS1_3
747 {"tls1_3", OPT_TLS1_3, '-', "Just use TLSv1.3"},
748#endif
a5ecdc6a 749#ifndef OPENSSL_NO_DTLS
9a13bb38
RS		 750 {"dtls", OPT_DTLS, '-', "Use any version of DTLS"},
751 {"timeout", OPT_TIMEOUT, '-',
752 "Enable send/receive timeout on DTLS connections"},
9c3bcfa0
RS		 753 {"mtu", OPT_MTU, 'p', "Set the link layer MTU"},
754#endif
6b01bed2
VD		 755#ifndef OPENSSL_NO_DTLS1
756 {"dtls1", OPT_DTLS1, '-', "Just use DTLSv1"},
757#endif
758#ifndef OPENSSL_NO_DTLS1_2
9a13bb38 759 {"dtls1_2", OPT_DTLS1_2, '-', "Just use DTLSv1.2"},
6b01bed2 760#endif
8ccc2377
MC		 761#ifndef OPENSSL_NO_SCTP
762 {"sctp", OPT_SCTP, '-', "Use SCTP"},
09d62b33 763 {"sctp_label_bug", OPT_SCTP_LABEL_BUG, '-', "Enable SCTP label length bug"},
8ccc2377 764#endif
5388f986
RS		 765#ifndef OPENSSL_NO_NEXTPROTONEG
766 {"nextprotoneg", OPT_NEXTPROTONEG, 's',
767 "Enable NPN extension, considering named protocols supported (comma-separated list)"},
9c3bcfa0 768#endif
5388f986
RS		 769 {"early_data", OPT_EARLY_DATA, '<', "File to send as early data"},
770 {"enable_pha", OPT_ENABLE_PHA, '-', "Enable post-handshake-authentication"},
771#ifndef OPENSSL_NO_SRTP
772 {"use_srtp", OPT_USE_SRTP, 's',
773 "Offer SRTP key management with a colon-separated profile list"},
7e1b7485 774#endif
7e1b7485 775#ifndef OPENSSL_NO_SRP
bde136c8 776 {"srpuser", OPT_SRPUSER, 's', "SRP authentication for 'user'"},
7e1b7485
RS		 777 {"srppass", OPT_SRPPASS, 's', "Password for 'user'"},
778 {"srp_lateuser", OPT_SRP_LATEUSER, '-',
779 "SRP username into second ClientHello message"},
780 {"srp_moregroups", OPT_SRP_MOREGROUPS, '-',
781 "Tolerate other than the known g N values."},
740ceb5b 782 {"srp_strength", OPT_SRP_STRENGTH, 'p', "Minimal length in bits for N"},
7e1b7485 783#endif
5388f986
RS		 784
785 OPT_R_OPTIONS,
786 OPT_S_OPTIONS,
787 OPT_V_OPTIONS,
788 {"CRL", OPT_CRL, '<', "CRL file to use"},
789 {"crl_download", OPT_CRL_DOWNLOAD, '-', "Download CRL from distribution points"},
790 {"CRLform", OPT_CRLFORM, 'F', "CRL format (PEM or DER) PEM is default"},
791 {"verify_return_error", OPT_VERIFY_RET_ERROR, '-',
792 "Close connection on verification error"},
793 {"verify_quiet", OPT_VERIFY_QUIET, '-', "Restrict verify output to errors"},
2b264aee
DDO		 794 {"chainCAfile", OPT_CHAINCAFILE, '<',
795 "CA file for certificate chain (PEM format)"},
5388f986
RS		 796 {"chainCApath", OPT_CHAINCAPATH, '/',
797 "Use dir as certificate store path to build CA certificate chain"},
798 {"chainCAstore", OPT_CHAINCASTORE, ':',
799 "CA store URI for certificate chain"},
800 {"verifyCAfile", OPT_VERIFYCAFILE, '<',
801 "CA file for certificate verification (PEM format)"},
802 {"verifyCApath", OPT_VERIFYCAPATH, '/',
803 "Use dir as certificate store path to verify CA certificate"},
804 {"verifyCAstore", OPT_VERIFYCASTORE, ':',
805 "CA store URI for certificate verification"},
5388f986 806 OPT_X_OPTIONS,
6bd4e3f2 807 OPT_PROV_OPTIONS,
92de469f
RS		 808
809 OPT_PARAMETERS(),
810 {"host:port", 0, 0, "Where to connect; same as -connect option"},
5388f986 811 {NULL}
7e1b7485
RS		 812};
813
814typedef enum PROTOCOL_choice {
815 PROTO_OFF,
0f113f3e
MC		 816 PROTO_SMTP,
817 PROTO_POP3,
818 PROTO_IMAP,
819 PROTO_FTP,
d8c25de5 820 PROTO_TELNET,
552bf8ec 821 PROTO_XMPP,
898ea7b8 822 PROTO_XMPP_SERVER,
cfb4f1ef 823 PROTO_CONNECT,
b2e54eb8 824 PROTO_IRC,
a2d9cfba 825 PROTO_MYSQL,
9576545a 826 PROTO_POSTGRES,
8f85aa6b 827 PROTO_LMTP,
20967afb 828 PROTO_NNTP,
398b0bbd
RS		 829 PROTO_SIEVE,
830 PROTO_LDAP
7e1b7485
RS		 831} PROTOCOL_CHOICE;
832
bde136c8 833static const OPT_PAIR services[] = {
7e1b7485
RS		 834 {"smtp", PROTO_SMTP},
835 {"pop3", PROTO_POP3},
836 {"imap", PROTO_IMAP},
837 {"ftp", PROTO_FTP},
838 {"xmpp", PROTO_XMPP},
898ea7b8 839 {"xmpp-server", PROTO_XMPP_SERVER},
d8c25de5 840 {"telnet", PROTO_TELNET},
cfb4f1ef 841 {"irc", PROTO_IRC},
a2d9cfba 842 {"mysql", PROTO_MYSQL},
b2e54eb8 843 {"postgres", PROTO_POSTGRES},
9576545a 844 {"lmtp", PROTO_LMTP},
8f85aa6b 845 {"nntp", PROTO_NNTP},
20967afb 846 {"sieve", PROTO_SIEVE},
398b0bbd 847 {"ldap", PROTO_LDAP},
bde136c8 848 {NULL, 0}
85c67492
RL		 849};
850
fe08bd76
RS		 851#define IS_INET_FLAG(o) \
852 (o == OPT_4 || o == OPT_6 || o == OPT_HOST || o == OPT_PORT || o == OPT_CONNECT)
853#define IS_UNIX_FLAG(o) (o == OPT_UNIX)
854
4bbd4ba6
MC		 855#define IS_PROT_FLAG(o) \
856 (o == OPT_SSL3 || o == OPT_TLS1 || o == OPT_TLS1_1 || o == OPT_TLS1_2 \
582a17d6 857 || o == OPT_TLS1_3 || o == OPT_DTLS || o == OPT_DTLS1 || o == OPT_DTLS1_2)
4bbd4ba6 858
7315ce80
RS		 859/* Free |*dest| and optionally set it to a copy of |source|. */
860static void freeandcopy(char **dest, const char *source)
861{
862 OPENSSL_free(*dest);
863 *dest = NULL;
864 if (source != NULL)
865 *dest = OPENSSL_strdup(source);
866}
867
20c0bce5 868static int new_session_cb(SSL *s, SSL_SESSION *sess)
be62b22b 869{
be62b22b 870
20c0bce5
MC		 871 if (sess_out != NULL) {
872 BIO *stmp = BIO_new_file(sess_out, "w");
873
874 if (stmp == NULL) {
875 BIO_printf(bio_err, "Error writing session file %s\n", sess_out);
876 } else {
877 PEM_write_bio_SSL_SESSION(stmp, sess);
878 BIO_free(stmp);
879 }
880 }
881
882 /*
883 * Session data gets dumped on connection for TLSv1.2 and below, and on
884 * arrival of the NewSessionTicket for TLSv1.3.
885 */
886 if (SSL_version(s) == TLS1_3_VERSION) {
887 BIO_printf(bio_c_out,
888 "---\nPost-Handshake New Session Ticket arrived:\n");
889 SSL_SESSION_print(bio_c_out, sess);
890 BIO_printf(bio_c_out, "---\n");
be62b22b
MC		 891 }
892
893 /*
894 * We always return a "fail" response so that the session gets freed again
895 * because we haven't used the reference.
896 */
897 return 0;
898}
899
7e1b7485 900int s_client_main(int argc, char **argv)
0f113f3e 901{
7e1b7485 902 BIO *sbio;
0f113f3e 903 EVP_PKEY *key = NULL;
7e1b7485 904 SSL *con = NULL;
0f113f3e 905 SSL_CTX *ctx = NULL;
7e1b7485
RS		 906 STACK_OF(X509) *chain = NULL;
907 X509 *cert = NULL;
0f113f3e 908 X509_VERIFY_PARAM *vpm = NULL;
7e1b7485
RS		 909 SSL_EXCERT *exc = NULL;
910 SSL_CONF_CTX *cctx = NULL;
911 STACK_OF(OPENSSL_STRING) *ssl_args = NULL;
cddd424a
VD		 912 char *dane_tlsa_domain = NULL;
913 STACK_OF(OPENSSL_STRING) *dane_tlsa_rrset = NULL;
c4fbed6c 914 int dane_ee_no_name = 0;
7e1b7485 915 STACK_OF(X509_CRL) *crls = NULL;
13c9bb3e 916 const SSL_METHOD *meth = TLS_client_method();
fd3397fc 917 const char *CApath = NULL, *CAfile = NULL, *CAstore = NULL;
69738dad
M		 918 char *cbuf = NULL, *sbuf = NULL, *mbuf = NULL;
919 char *proxystr = NULL, *proxyuser = NULL;
920 char *proxypassarg = NULL, *proxypass = NULL;
921 char *connectstr = NULL, *bindstr = NULL;
cddd424a 922 char *cert_file = NULL, *key_file = NULL, *chain_file = NULL;
fd3397fc 923 char *chCApath = NULL, *chCAfile = NULL, *chCAstore = NULL, *host = NULL;
f7201301 924 char *thost = NULL, *tport = NULL;
7315ce80 925 char *port = OPENSSL_strdup(PORT);
ebc01683 926 char *bindhost = NULL, *bindport = NULL;
fd3397fc
RL		 927 char *passarg = NULL, *pass = NULL;
928 char *vfyCApath = NULL, *vfyCAfile = NULL, *vfyCAstore = NULL;
d2add501 929 char *ReqCAfile = NULL;
be62b22b 930 char *sess_in = NULL, *crl_file = NULL, *p;
8176431d 931 const char *protohost = NULL;
0f113f3e 932 struct timeval timeout, *timeoutp;
7e1b7485 933 fd_set readfds, writefds;
fd3397fc 934 int noCApath = 0, noCAfile = 0, noCAstore = 0;
7e1b7485
RS		 935 int build_chain = 0, cbuf_len, cbuf_off, cert_format = FORMAT_PEM;
936 int key_format = FORMAT_PEM, crlf = 0, full_log = 1, mbuf_len = 0;
937 int prexit = 0;
40a8e9c2 938 int sdebug = 0;
7e1b7485 939 int reconnect = 0, verify = SSL_VERIFY_NONE, vpmtouched = 0;
29f178bd 940 int ret = 1, in_init = 1, i, nbio_test = 0, sock = -1, k, width, state = 0;
ab69ac00 941 int sbuf_len, sbuf_off, cmdletters = 1;
8ccc2377 942 int socket_family = AF_UNSPEC, socket_type = SOCK_STREAM, protocol = 0;
7e1b7485
RS		 943 int starttls_proto = PROTO_OFF, crl_format = FORMAT_PEM, crl_download = 0;
944 int write_tty, read_tty, write_ssl, read_ssl, tty_on, ssl_pending;
d485640b 945#if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS)
a3ef2c16 946 int at_eof = 0;
d485640b 947#endif
dad78fb1 948 int read_buf_len = 0;
7e1b7485 949 int fallback_scsv = 0;
7e1b7485 950 OPTION_CHOICE o;
40a8e9c2
MC		 951#ifndef OPENSSL_NO_DTLS
952 int enable_timeouts = 0;
953 long socket_mtu = 0;
954#endif
0b13e9f0 955#ifndef OPENSSL_NO_ENGINE
0f113f3e 956 ENGINE *ssl_client_engine = NULL;
7e1b7485 957#endif
333b070e 958 ENGINE *e = NULL;
1fbab1dc 959#if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
0f113f3e 960 struct timeval tv;
06f4536a 961#endif
44f19af7 962 const char *servername = NULL;
11ba87f2 963 int noservername = 0;
7e1b7485 964 const char *alpn_in = NULL;
0f113f3e 965 tlsextctx tlsextcbp = { NULL, 0 };
287d0b94 966 const char *ssl_config = NULL;
e481f9b9 967#define MAX_SI_TYPES 100
7e1b7485
RS		 968 unsigned short serverinfo_types[MAX_SI_TYPES];
969 int serverinfo_count = 0, start = 0, len;
e481f9b9 970#ifndef OPENSSL_NO_NEXTPROTONEG
0f113f3e 971 const char *next_proto_neg_in = NULL;
ed551cdd 972#endif
edc032b5 973#ifndef OPENSSL_NO_SRP
0f113f3e
MC		 974 char *srppass = NULL;
975 int srp_lateuser = 0;
976 SRP_ARG srp_arg = { NULL, NULL, 0, 0, 0, 1024 };
977#endif
dad88680 978#ifndef OPENSSL_NO_SRTP
1fb6b0bf 979 char *srtp_profiles = NULL;
dad88680 980#endif
dd696a55
RP		 981#ifndef OPENSSL_NO_CT
982 char *ctlog_file = NULL;
43341433 983 int ct_validation = 0;
dd696a55 984#endif
4bbd4ba6 985 int min_version = 0, max_version = 0, prot_opt = 0, no_prot_opt = 0;
fba13663 986 int async = 0;
28e5ea88 987 unsigned int max_send_fragment = 0;
36b2cfb1 988 unsigned int split_send_fragment = 0, max_pipelines = 0;
fe08bd76
RS		 989 enum { use_inet, use_unix, use_unknown } connect_type = use_unknown;
990 int count4or6 = 0;
cf72c757 991 uint8_t maxfraglen = 0;
54463e4f 992 int c_nbio = 0, c_msg = 0, c_ign_eof = 0, c_brief = 0;
057c676a
RL		 993 int c_tlsextdebug = 0;
994#ifndef OPENSSL_NO_OCSP
995 int c_status_req = 0;
996#endif
54463e4f 997 BIO *bio_c_msg = NULL;
923ac827 998 const char *keylog_file = NULL, *early_data_file = NULL;
9ff2cebf 999#ifndef OPENSSL_NO_DTLS
8ccc2377 1000 int isdtls = 0;
9ff2cebf 1001#endif
e261bdd1 1002 char *psksessf = NULL;
32097b33 1003 int enable_pha = 0;
09d62b33
MT		 1004#ifndef OPENSSL_NO_SCTP
1005 int sctp_label_bug = 0;
1006#endif
09b90e0e 1007 int ignore_unexpected_eof = 0;
0f113f3e 1008
efc943be
EK		 1009 FD_ZERO(&readfds);
1010 FD_ZERO(&writefds);
1011/* Known false-positive of MemorySanitizer. */
1012#if defined(__has_feature)
1013# if __has_feature(memory_sanitizer)
1014 __msan_unpoison(&readfds, sizeof(readfds));
1015 __msan_unpoison(&writefds, sizeof(writefds));
1016# endif
1017#endif
1018
7e1b7485 1019 prog = opt_progname(argv[0]);
0f113f3e 1020 c_quiet = 0;
0f113f3e 1021 c_debug = 0;
0f113f3e 1022 c_showcerts = 0;
7e1b7485 1023 c_nbio = 0;
7e1b7485 1024 vpm = X509_VERIFY_PARAM_new();
0f113f3e 1025 cctx = SSL_CONF_CTX_new();
0f113f3e 1026
68dc6824 1027 if (vpm == NULL || cctx == NULL) {
7e1b7485 1028 BIO_printf(bio_err, "%s: out of memory\n", prog);
0f113f3e
MC		 1029 goto end;
1030 }
1031
acc00492
F		 1032 cbuf = app_malloc(BUFSIZZ, "cbuf");
1033 sbuf = app_malloc(BUFSIZZ, "sbuf");
1034 mbuf = app_malloc(BUFSIZZ, "mbuf");
1035
7e1b7485 1036 SSL_CONF_CTX_set_flags(cctx, SSL_CONF_FLAG_CLIENT | SSL_CONF_FLAG_CMDLINE);
0f113f3e 1037
7e1b7485
RS		 1038 prog = opt_init(argc, argv, s_client_options);
1039 while ((o = opt_next()) != OPT_EOF) {
fe08bd76
RS		 1040 /* Check for intermixing flags. */
1041 if (connect_type == use_unix && IS_INET_FLAG(o)) {
1042 BIO_printf(bio_err,
d6073e27
F		 1043 "%s: Intermixed protocol flags (unix and internet domains)\n",
1044 prog);
fe08bd76
RS		 1045 goto end;
1046 }
1047 if (connect_type == use_inet && IS_UNIX_FLAG(o)) {
1048 BIO_printf(bio_err,
d6073e27
F		 1049 "%s: Intermixed protocol flags (internet and unix domains)\n",
1050 prog);
fe08bd76
RS		 1051 goto end;
1052 }
4bbd4ba6
MC		 1053
1054 if (IS_PROT_FLAG(o) && ++prot_opt > 1) {
1055 BIO_printf(bio_err, "Cannot supply multiple protocol flags\n");
1056 goto end;
1057 }
1058 if (IS_NO_PROT_FLAG(o))
1059 no_prot_opt++;
1060 if (prot_opt == 1 && no_prot_opt) {
d6073e27
F		 1061 BIO_printf(bio_err,
1062 "Cannot supply both a protocol flag and '-no_<prot>'\n");
4bbd4ba6
MC		 1063 goto end;
1064 }
1065
7e1b7485 1066 switch (o) {
7e1b7485
RS		 1067 case OPT_EOF:
1068 case OPT_ERR:
1069 opthelp:
1070 BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
1071 goto end;
1072 case OPT_HELP:
1073 opt_help(s_client_options);
1074 ret = 0;
1075 goto end;
ab69ac00 1076 case OPT_4:
fe08bd76 1077 connect_type = use_inet;
ab69ac00 1078 socket_family = AF_INET;
fe08bd76 1079 count4or6++;
ab69ac00 1080 break;
ab69ac00 1081#ifdef AF_INET6
fe08bd76
RS		 1082 case OPT_6:
1083 connect_type = use_inet;
1084 socket_family = AF_INET6;
1085 count4or6++;
ab69ac00 1086 break;
ab69ac00 1087#endif
fe08bd76
RS		 1088 case OPT_HOST:
1089 connect_type = use_inet;
7315ce80 1090 freeandcopy(&host, opt_arg());
7e1b7485
RS		 1091 break;
1092 case OPT_PORT:
fe08bd76 1093 connect_type = use_inet;
7315ce80 1094 freeandcopy(&port, opt_arg());
7e1b7485
RS		 1095 break;
1096 case OPT_CONNECT:
fe08bd76 1097 connect_type = use_inet;
7315ce80 1098 freeandcopy(&connectstr, opt_arg());
552bf8ec 1099 break;
ebc01683
JH		 1100 case OPT_BIND:
1101 freeandcopy(&bindstr, opt_arg());
1102 break;
552bf8ec
MT		 1103 case OPT_PROXY:
1104 proxystr = opt_arg();
1105 starttls_proto = PROTO_CONNECT;
7e1b7485 1106 break;
69738dad
M		 1107 case OPT_PROXY_USER:
1108 proxyuser = opt_arg();
1109 break;
1110 case OPT_PROXY_PASS:
1111 proxypassarg = opt_arg();
1112 break;
ab69ac00 1113#ifdef AF_UNIX
7e1b7485 1114 case OPT_UNIX:
fe08bd76 1115 connect_type = use_unix;
ab69ac00 1116 socket_family = AF_UNIX;
7315ce80 1117 freeandcopy(&host, opt_arg());
7e1b7485 1118 break;
ab69ac00 1119#endif
d8c25de5 1120 case OPT_XMPPHOST:
8176431d
PY		 1121 /* fall through, since this is an alias */
1122 case OPT_PROTOHOST:
1123 protohost = opt_arg();
d8c25de5 1124 break;
7e1b7485 1125 case OPT_VERIFY:
0f113f3e 1126 verify = SSL_VERIFY_PEER;
acc00492 1127 verify_args.depth = atoi(opt_arg());
0f113f3e 1128 if (!c_quiet)
acc00492 1129 BIO_printf(bio_err, "verify depth is %d\n", verify_args.depth);
7e1b7485
RS		 1130 break;
1131 case OPT_CERT:
1132 cert_file = opt_arg();
1133 break;
a7c04f2b
DB		 1134 case OPT_NAMEOPT:
1135 if (!set_nameopt(opt_arg()))
1136 goto end;
1137 break;
7e1b7485
RS		 1138 case OPT_CRL:
1139 crl_file = opt_arg();
1140 break;
1141 case OPT_CRL_DOWNLOAD:
0f113f3e 1142 crl_download = 1;
7e1b7485
RS		 1143 break;
1144 case OPT_SESS_OUT:
1145 sess_out = opt_arg();
1146 break;
1147 case OPT_SESS_IN:
1148 sess_in = opt_arg();
1149 break;
1150 case OPT_CERTFORM:
6d382c74 1151 if (!opt_format(opt_arg(), OPT_FMT_ANY, &cert_format))
7e1b7485
RS		 1152 goto opthelp;
1153 break;
1154 case OPT_CRLFORM:
1155 if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &crl_format))
1156 goto opthelp;
1157 break;
1158 case OPT_VERIFY_RET_ERROR:
78021171 1159 verify = SSL_VERIFY_PEER;
acc00492 1160 verify_args.return_error = 1;
7e1b7485
RS		 1161 break;
1162 case OPT_VERIFY_QUIET:
acc00492 1163 verify_args.quiet = 1;
7e1b7485
RS		 1164 break;
1165 case OPT_BRIEF:
acc00492 1166 c_brief = verify_args.quiet = c_quiet = 1;
7e1b7485
RS		 1167 break;
1168 case OPT_S_CASES:
1169 if (ssl_args == NULL)
1170 ssl_args = sk_OPENSSL_STRING_new_null();
1171 if (ssl_args == NULL
1172 || !sk_OPENSSL_STRING_push(ssl_args, opt_flag())
1173 || !sk_OPENSSL_STRING_push(ssl_args, opt_arg())) {
1174 BIO_printf(bio_err, "%s: Memory allocation failure\n", prog);
1175 goto end;
1176 }
1177 break;
1178 case OPT_V_CASES:
1179 if (!opt_verify(o, vpm))
1180 goto end;
1181 vpmtouched++;
1182 break;
1183 case OPT_X_CASES:
1184 if (!args_excert(o, &exc))
1185 goto end;
1186 break;
09b90e0e
DB		 1187 case OPT_IGNORE_UNEXPECTED_EOF:
1188 ignore_unexpected_eof = 1;
1189 break;
7e1b7485 1190 case OPT_PREXIT:
0f113f3e 1191 prexit = 1;
7e1b7485
RS		 1192 break;
1193 case OPT_CRLF:
0f113f3e 1194 crlf = 1;
7e1b7485
RS		 1195 break;
1196 case OPT_QUIET:
1197 c_quiet = c_ign_eof = 1;
1198 break;
1199 case OPT_NBIO:
1200 c_nbio = 1;
1201 break;
6ba8a5b7
RS		 1202 case OPT_NOCMDS:
1203 cmdletters = 0;
1204 break;
7e1b7485 1205 case OPT_ENGINE:
333b070e 1206 e = setup_engine(opt_arg(), 1);
7e1b7485
RS		 1207 break;
1208 case OPT_SSL_CLIENT_ENGINE:
333b070e
RS		 1209#ifndef OPENSSL_NO_ENGINE
1210 ssl_client_engine = ENGINE_by_id(opt_arg());
1211 if (ssl_client_engine == NULL) {
1212 BIO_printf(bio_err, "Error getting client auth engine\n");
1213 goto opthelp;
1214 }
333b070e 1215#endif
7e1b7485 1216 break;
3ee1eac2
RS		 1217 case OPT_R_CASES:
1218 if (!opt_rand(o))
1219 goto end;
7e1b7485 1220 break;
6bd4e3f2
P		 1221 case OPT_PROV_CASES:
1222 if (!opt_provider(o))
1223 goto end;
1224 break;
7e1b7485 1225 case OPT_IGN_EOF:
0f113f3e 1226 c_ign_eof = 1;
7e1b7485
RS		 1227 break;
1228 case OPT_NO_IGN_EOF:
0f113f3e 1229 c_ign_eof = 0;
7e1b7485 1230 break;
7e1b7485 1231 case OPT_DEBUG:
0f113f3e 1232 c_debug = 1;
7e1b7485 1233 break;
7e1b7485 1234 case OPT_TLSEXTDEBUG:
0f113f3e 1235 c_tlsextdebug = 1;
7e1b7485
RS		 1236 break;
1237 case OPT_STATUS:
057c676a 1238#ifndef OPENSSL_NO_OCSP
0f113f3e 1239 c_status_req = 1;
057c676a 1240#endif
7e1b7485 1241 break;
7e1b7485 1242 case OPT_WDEBUG:
9c3bcfa0 1243#ifdef WATT32
0f113f3e
MC		 1244 dbug_init();
1245#endif
9c3bcfa0 1246 break;
7e1b7485 1247 case OPT_MSG:
0f113f3e 1248 c_msg = 1;
7e1b7485
RS		 1249 break;
1250 case OPT_MSGFILE:
1251 bio_c_msg = BIO_new_file(opt_arg(), "w");
1252 break;
7e1b7485 1253 case OPT_TRACE:
9c3bcfa0 1254#ifndef OPENSSL_NO_SSL_TRACE
0f113f3e
MC		 1255 c_msg = 2;
1256#endif
9c3bcfa0 1257 break;
7e1b7485 1258 case OPT_SECURITY_DEBUG:
0f113f3e 1259 sdebug = 1;
7e1b7485
RS		 1260 break;
1261 case OPT_SECURITY_DEBUG_VERBOSE:
0f113f3e 1262 sdebug = 2;
7e1b7485
RS		 1263 break;
1264 case OPT_SHOWCERTS:
0f113f3e 1265 c_showcerts = 1;
7e1b7485
RS		 1266 break;
1267 case OPT_NBIO_TEST:
0f113f3e 1268 nbio_test = 1;
7e1b7485
RS		 1269 break;
1270 case OPT_STATE:
0f113f3e 1271 state = 1;
7e1b7485 1272 break;
7e1b7485
RS		 1273 case OPT_PSK_IDENTITY:
1274 psk_identity = opt_arg();
1275 break;
1276 case OPT_PSK:
1277 for (p = psk_key = opt_arg(); *p; p++) {
18295f0c 1278 if (isxdigit(_UC(*p)))
0f113f3e 1279 continue;
7e1b7485
RS		 1280 BIO_printf(bio_err, "Not a hex number '%s'\n", psk_key);
1281 goto end;
0f113f3e 1282 }
13cbe5e7 1283 break;
e261bdd1
MC		 1284 case OPT_PSK_SESS:
1285 psksessf = opt_arg();
1286 break;
edc032b5 1287#ifndef OPENSSL_NO_SRP
7e1b7485
RS		 1288 case OPT_SRPUSER:
1289 srp_arg.srplogin = opt_arg();
0d5301af
KR		 1290 if (min_version < TLS1_VERSION)
1291 min_version = TLS1_VERSION;
7e1b7485
RS		 1292 break;
1293 case OPT_SRPPASS:
1294 srppass = opt_arg();
0d5301af
KR		 1295 if (min_version < TLS1_VERSION)
1296 min_version = TLS1_VERSION;
7e1b7485
RS		 1297 break;
1298 case OPT_SRP_STRENGTH:
1299 srp_arg.strength = atoi(opt_arg());
0f113f3e
MC		 1300 BIO_printf(bio_err, "SRP minimal length for N is %d\n",
1301 srp_arg.strength);
0d5301af
KR		 1302 if (min_version < TLS1_VERSION)
1303 min_version = TLS1_VERSION;
7e1b7485
RS		 1304 break;
1305 case OPT_SRP_LATEUSER:
0f113f3e 1306 srp_lateuser = 1;
0d5301af
KR		 1307 if (min_version < TLS1_VERSION)
1308 min_version = TLS1_VERSION;
7e1b7485
RS		 1309 break;
1310 case OPT_SRP_MOREGROUPS:
0f113f3e 1311 srp_arg.amp = 1;
0d5301af
KR		 1312 if (min_version < TLS1_VERSION)
1313 min_version = TLS1_VERSION;
7e1b7485 1314 break;
edc032b5 1315#endif
287d0b94
DSH		 1316 case OPT_SSL_CONFIG:
1317 ssl_config = opt_arg();
1318 break;
7e1b7485 1319 case OPT_SSL3:
0d5301af
KR		 1320 min_version = SSL3_VERSION;
1321 max_version = SSL3_VERSION;
2c9ba46c
BB		 1322 socket_type = SOCK_STREAM;
1323#ifndef OPENSSL_NO_DTLS
1324 isdtls = 0;
1325#endif
9c3bcfa0 1326 break;
582a17d6
MC		 1327 case OPT_TLS1_3:
1328 min_version = TLS1_3_VERSION;
1329 max_version = TLS1_3_VERSION;
2c9ba46c
BB		 1330 socket_type = SOCK_STREAM;
1331#ifndef OPENSSL_NO_DTLS
1332 isdtls = 0;
1333#endif
582a17d6 1334 break;
7e1b7485 1335 case OPT_TLS1_2:
0d5301af
KR		 1336 min_version = TLS1_2_VERSION;
1337 max_version = TLS1_2_VERSION;
2c9ba46c
BB		 1338 socket_type = SOCK_STREAM;
1339#ifndef OPENSSL_NO_DTLS
1340 isdtls = 0;
1341#endif
7e1b7485
RS		 1342 break;
1343 case OPT_TLS1_1:
0d5301af
KR		 1344 min_version = TLS1_1_VERSION;
1345 max_version = TLS1_1_VERSION;
2c9ba46c
BB		 1346 socket_type = SOCK_STREAM;
1347#ifndef OPENSSL_NO_DTLS
1348 isdtls = 0;
1349#endif
7e1b7485
RS		 1350 break;
1351 case OPT_TLS1:
0d5301af
KR		 1352 min_version = TLS1_VERSION;
1353 max_version = TLS1_VERSION;
2c9ba46c
BB		 1354 socket_type = SOCK_STREAM;
1355#ifndef OPENSSL_NO_DTLS
1356 isdtls = 0;
1357#endif
7e1b7485 1358 break;
7e1b7485 1359 case OPT_DTLS:
6b01bed2 1360#ifndef OPENSSL_NO_DTLS
0f113f3e
MC		 1361 meth = DTLS_client_method();
1362 socket_type = SOCK_DGRAM;
8ccc2377 1363 isdtls = 1;
6b01bed2 1364#endif
7e1b7485
RS		 1365 break;
1366 case OPT_DTLS1:
6b01bed2 1367#ifndef OPENSSL_NO_DTLS1
0d5301af
KR		 1368 meth = DTLS_client_method();
1369 min_version = DTLS1_VERSION;
1370 max_version = DTLS1_VERSION;
0f113f3e 1371 socket_type = SOCK_DGRAM;
8ccc2377 1372 isdtls = 1;
6b01bed2 1373#endif
7e1b7485
RS		 1374 break;
1375 case OPT_DTLS1_2:
6b01bed2 1376#ifndef OPENSSL_NO_DTLS1_2
0d5301af
KR		 1377 meth = DTLS_client_method();
1378 min_version = DTLS1_2_VERSION;
1379 max_version = DTLS1_2_VERSION;
0f113f3e 1380 socket_type = SOCK_DGRAM;
8ccc2377
MC		 1381 isdtls = 1;
1382#endif
1383 break;
1384 case OPT_SCTP:
1385#ifndef OPENSSL_NO_SCTP
1386 protocol = IPPROTO_SCTP;
09d62b33
MT		 1387#endif
1388 break;
1389 case OPT_SCTP_LABEL_BUG:
1390#ifndef OPENSSL_NO_SCTP
1391 sctp_label_bug = 1;
6b01bed2 1392#endif
7e1b7485
RS		 1393 break;
1394 case OPT_TIMEOUT:
6b01bed2 1395#ifndef OPENSSL_NO_DTLS
0f113f3e 1396 enable_timeouts = 1;
6b01bed2 1397#endif
7e1b7485
RS		 1398 break;
1399 case OPT_MTU:
6b01bed2 1400#ifndef OPENSSL_NO_DTLS
7e1b7485 1401 socket_mtu = atol(opt_arg());
0f113f3e 1402#endif
6b01bed2 1403 break;
7e1b7485 1404 case OPT_FALLBACKSCSV:
0f113f3e 1405 fallback_scsv = 1;
7e1b7485
RS		 1406 break;
1407 case OPT_KEYFORM:
6d382c74 1408 if (!opt_format(opt_arg(), OPT_FMT_ANY, &key_format))
7e1b7485
RS		 1409 goto opthelp;
1410 break;
1411 case OPT_PASS:
1412 passarg = opt_arg();
1413 break;
1414 case OPT_CERT_CHAIN:
1415 chain_file = opt_arg();
1416 break;
1417 case OPT_KEY:
1418 key_file = opt_arg();
1419 break;
1420 case OPT_RECONNECT:
0f113f3e 1421 reconnect = 5;
7e1b7485
RS		 1422 break;
1423 case OPT_CAPATH:
1424 CApath = opt_arg();
1425 break;
2b6bcb70
MC		 1426 case OPT_NOCAPATH:
1427 noCApath = 1;
1428 break;
7e1b7485
RS		 1429 case OPT_CHAINCAPATH:
1430 chCApath = opt_arg();
1431 break;
1432 case OPT_VERIFYCAPATH:
1433 vfyCApath = opt_arg();
1434 break;
1435 case OPT_BUILD_CHAIN:
0f113f3e 1436 build_chain = 1;
7e1b7485 1437 break;
d2add501
DSH		 1438 case OPT_REQCAFILE:
1439 ReqCAfile = opt_arg();
1440 break;
7e1b7485
RS		 1441 case OPT_CAFILE:
1442 CAfile = opt_arg();
1443 break;
2b6bcb70
MC		 1444 case OPT_NOCAFILE:
1445 noCAfile = 1;
1446 break;
dd696a55
RP		 1447#ifndef OPENSSL_NO_CT
1448 case OPT_NOCT:
43341433 1449 ct_validation = 0;
dd696a55 1450 break;
43341433
VD		 1451 case OPT_CT:
1452 ct_validation = 1;
dd696a55
RP		 1453 break;
1454 case OPT_CTLOG_FILE:
1455 ctlog_file = opt_arg();
1456 break;
1457#endif
7e1b7485
RS		 1458 case OPT_CHAINCAFILE:
1459 chCAfile = opt_arg();
1460 break;
1461 case OPT_VERIFYCAFILE:
1462 vfyCAfile = opt_arg();
1463 break;
fd3397fc
RL		 1464 case OPT_CASTORE:
1465 CAstore = opt_arg();
1466 break;
1467 case OPT_NOCASTORE:
1468 noCAstore = 1;
1469 break;
1470 case OPT_CHAINCASTORE:
1471 chCAstore = opt_arg();
1472 break;
1473 case OPT_VERIFYCASTORE:
1474 vfyCAstore = opt_arg();
1475 break;
cddd424a
VD		 1476 case OPT_DANE_TLSA_DOMAIN:
1477 dane_tlsa_domain = opt_arg();
1478 break;
1479 case OPT_DANE_TLSA_RRDATA:
1480 if (dane_tlsa_rrset == NULL)
1481 dane_tlsa_rrset = sk_OPENSSL_STRING_new_null();
1482 if (dane_tlsa_rrset == NULL ||
1483 !sk_OPENSSL_STRING_push(dane_tlsa_rrset, opt_arg())) {
1484 BIO_printf(bio_err, "%s: Memory allocation failure\n", prog);
1485 goto end;
1486 }
1487 break;
c4fbed6c
VD		 1488 case OPT_DANE_EE_NO_NAME:
1489 dane_ee_no_name = 1;
1490 break;
7e1b7485 1491 case OPT_NEXTPROTONEG:
1595ca02 1492#ifndef OPENSSL_NO_NEXTPROTONEG
7e1b7485 1493 next_proto_neg_in = opt_arg();
1595ca02 1494#endif
7e1b7485
RS		 1495 break;
1496 case OPT_ALPN:
1497 alpn_in = opt_arg();
1498 break;
1499 case OPT_SERVERINFO:
1500 p = opt_arg();
1501 len = strlen(p);
1502 for (start = 0, i = 0; i <= len; ++i) {
1503 if (i == len || p[i] == ',') {
1504 serverinfo_types[serverinfo_count] = atoi(p + start);
1505 if (++serverinfo_count == MAX_SI_TYPES)
1506 break;
0f113f3e
MC		 1507 start = i + 1;
1508 }
0f113f3e 1509 }
7e1b7485 1510 break;
7e1b7485
RS		 1511 case OPT_STARTTLS:
1512 if (!opt_pair(opt_arg(), services, &starttls_proto))
1513 goto end;
46da5f9c 1514 break;
7e1b7485
RS		 1515 case OPT_SERVERNAME:
1516 servername = opt_arg();
7e1b7485 1517 break;
11ba87f2
MC		 1518 case OPT_NOSERVERNAME:
1519 noservername = 1;
1520 break;
7e1b7485 1521 case OPT_USE_SRTP:
dad88680 1522#ifndef OPENSSL_NO_SRTP
7e1b7485 1523 srtp_profiles = opt_arg();
dad88680 1524#endif
7e1b7485
RS		 1525 break;
1526 case OPT_KEYMATEXPORT:
1527 keymatexportlabel = opt_arg();
1528 break;
1529 case OPT_KEYMATEXPORTLEN:
1530 keymatexportlen = atoi(opt_arg());
0f113f3e 1531 break;
7e25dd6d
MC		 1532 case OPT_ASYNC:
1533 async = 1;
1534 break;
cf72c757
F		 1535 case OPT_MAXFRAGLEN:
1536 len = atoi(opt_arg());
1537 switch (len) {
1538 case 512:
1539 maxfraglen = TLSEXT_max_fragment_length_512;
1540 break;
1541 case 1024:
1542 maxfraglen = TLSEXT_max_fragment_length_1024;
1543 break;
1544 case 2048:
1545 maxfraglen = TLSEXT_max_fragment_length_2048;
1546 break;
1547 case 4096:
1548 maxfraglen = TLSEXT_max_fragment_length_4096;
1549 break;
1550 default:
1551 BIO_printf(bio_err,
1552 "%s: Max Fragment Len %u is out of permitted values",
1553 prog, len);
1554 goto opthelp;
1555 }
1556 break;
28e5ea88
F		 1557 case OPT_MAX_SEND_FRAG:
1558 max_send_fragment = atoi(opt_arg());
28e5ea88 1559 break;
032c6d21
MC		 1560 case OPT_SPLIT_SEND_FRAG:
1561 split_send_fragment = atoi(opt_arg());
032c6d21
MC		 1562 break;
1563 case OPT_MAX_PIPELINES:
1564 max_pipelines = atoi(opt_arg());
1565 break;
dad78fb1
MC		 1566 case OPT_READ_BUF:
1567 read_buf_len = atoi(opt_arg());
1568 break;
4bf73e9f
PW		 1569 case OPT_KEYLOG_FILE:
1570 keylog_file = opt_arg();
1571 break;
923ac827
MC		 1572 case OPT_EARLY_DATA:
1573 early_data_file = opt_arg();
1574 break;
32097b33
MC		 1575 case OPT_ENABLE_PHA:
1576 enable_pha = 1;
9d75dce3 1577 break;
0f113f3e 1578 }
0f113f3e 1579 }
49b26f54 1580
fe08bd76
RS		 1581 if (count4or6 >= 2) {
1582 BIO_printf(bio_err, "%s: Can't use both -4 and -6\n", prog);
1583 goto opthelp;
1584 }
11ba87f2
MC		 1585 if (noservername) {
1586 if (servername != NULL) {
1587 BIO_printf(bio_err,
1588 "%s: Can't use -servername and -noservername together\n",
1589 prog);
1590 goto opthelp;
1591 }
1592 if (dane_tlsa_domain != NULL) {
1593 BIO_printf(bio_err,
1594 "%s: Can't use -dane_tlsa_domain and -noservername together\n",
1595 prog);
1596 goto opthelp;
1597 }
1598 }
7e1b7485 1599 argc = opt_num_rest();
729ef856
CB		 1600 if (argc == 1) {
1601 /* If there's a positional argument, it's the equivalent of
1602 * OPT_CONNECT.
1603 * Don't allow -connect and a separate argument.
1604 */
1605 if (connectstr != NULL) {
1606 BIO_printf(bio_err,
1607 "%s: must not provide both -connect option and target parameter\n",
1608 prog);
1609 goto opthelp;
1610 }
1611 connect_type = use_inet;
222417eb 1612 freeandcopy(&connectstr, *opt_rest());
729ef856 1613 } else if (argc != 0) {
03358517 1614 goto opthelp;
729ef856 1615 }
0f113f3e 1616
837f87c2
PY		 1617#ifndef OPENSSL_NO_NEXTPROTONEG
1618 if (min_version == TLS1_3_VERSION && next_proto_neg_in != NULL) {
1619 BIO_printf(bio_err, "Cannot supply -nextprotoneg with TLSv1.3\n");
1620 goto opthelp;
1621 }
1622#endif
f7201301
M		 1623
1624 if (connectstr != NULL) {
ab69ac00
RL		 1625 int res;
1626 char *tmp_host = host, *tmp_port = port;
f7201301
M		 1627
1628 res = BIO_parse_hostserv(connectstr, &host, &port, BIO_PARSE_PRIO_HOST);
ab69ac00
RL		 1629 if (tmp_host != host)
1630 OPENSSL_free(tmp_host);
1631 if (tmp_port != port)
1632 OPENSSL_free(tmp_port);
1633 if (!res) {
d6073e27 1634 BIO_printf(bio_err,
f7201301
M		 1635 "%s: -connect argument or target parameter malformed or ambiguous\n",
1636 prog);
ab69ac00
RL		 1637 goto end;
1638 }
f7201301
M		 1639 }
1640
1641 if (proxystr != NULL) {
1642 int res;
ab69ac00 1643 char *tmp_host = host, *tmp_port = port;
f7201301
M		 1644
1645 if (host == NULL || port == NULL) {
1646 BIO_printf(bio_err, "%s: -proxy requires use of -connect or target parameter\n", prog);
1647 goto opthelp;
1648 }
1649
1650 /* Retain the original target host:port for use in the HTTP proxy connect string */
1651 thost = OPENSSL_strdup(host);
1652 tport = OPENSSL_strdup(port);
1653 if (thost == NULL || tport == NULL) {
1654 BIO_printf(bio_err, "%s: out of memory\n", prog);
1655 goto end;
1656 }
1657
1658 res = BIO_parse_hostserv(proxystr, &host, &port, BIO_PARSE_PRIO_HOST);
ab69ac00
RL		 1659 if (tmp_host != host)
1660 OPENSSL_free(tmp_host);
1661 if (tmp_port != port)
1662 OPENSSL_free(tmp_port);
1663 if (!res) {
1664 BIO_printf(bio_err,
f7201301 1665 "%s: -proxy argument malformed or ambiguous\n", prog);
552bf8ec 1666 goto end;
ab69ac00 1667 }
552bf8ec 1668 }
552bf8ec 1669
ebc01683
JH		 1670 if (bindstr != NULL) {
1671 int res;
1672 res = BIO_parse_hostserv(bindstr, &bindhost, &bindport,
1673 BIO_PARSE_PRIO_HOST);
1674 if (!res) {
1675 BIO_printf(bio_err,
1676 "%s: -bind argument parameter malformed or ambiguous\n",
1677 prog);
1678 goto end;
1679 }
1680 }
1681
326eaa94 1682#ifdef AF_UNIX
ab69ac00 1683 if (socket_family == AF_UNIX && socket_type != SOCK_STREAM) {
0f113f3e
MC		 1684 BIO_printf(bio_err,
1685 "Can't use unix sockets and datagrams together\n");
1686 goto end;
1687 }
326eaa94 1688#endif
f3b7bdad 1689
8ccc2377
MC		 1690#ifndef OPENSSL_NO_SCTP
1691 if (protocol == IPPROTO_SCTP) {
1692 if (socket_type != SOCK_DGRAM) {
1693 BIO_printf(bio_err, "Can't use -sctp without DTLS\n");
1694 goto end;
1695 }
1696 /* SCTP is unusual. It uses DTLS over a SOCK_STREAM protocol */
1697 socket_type = SOCK_STREAM;
1698 }
1699#endif
032c6d21 1700
e481f9b9 1701#if !defined(OPENSSL_NO_NEXTPROTONEG)
0f113f3e
MC		 1702 next_proto.status = -1;
1703 if (next_proto_neg_in) {
1704 next_proto.data =
1705 next_protos_parse(&next_proto.len, next_proto_neg_in);
1706 if (next_proto.data == NULL) {
1707 BIO_printf(bio_err, "Error parsing -nextprotoneg argument\n");
1708 goto end;
1709 }
1710 } else
1711 next_proto.data = NULL;
ee2ffc27
BL		 1712#endif
1713
7e1b7485 1714 if (!app_passwd(passarg, NULL, &pass, NULL)) {
69738dad
M		 1715 BIO_printf(bio_err, "Error getting private key password\n");
1716 goto end;
1717 }
1718
1719 if (!app_passwd(proxypassarg, NULL, &proxypass, NULL)) {
1720 BIO_printf(bio_err, "Error getting proxy password\n");
1721 goto end;
1722 }
1723
1724 if (proxypass != NULL && proxyuser == NULL) {
1725 BIO_printf(bio_err, "Error: Must specify proxy_user with proxy_pass\n");
0f113f3e
MC		 1726 goto end;
1727 }
1728
1729 if (key_file == NULL)
1730 key_file = cert_file;
1731
2234212c 1732 if (key_file != NULL) {
7e1b7485 1733 key = load_key(key_file, key_format, 0, pass, e,
0f113f3e 1734 "client certificate private key file");
01c12100 1735 if (key == NULL)
0f113f3e 1736 goto end;
0f113f3e
MC		 1737 }
1738
2234212c 1739 if (cert_file != NULL) {
a773b52a 1740 cert = load_cert(cert_file, cert_format, "client certificate file");
01c12100 1741 if (cert == NULL)
0f113f3e 1742 goto end;
0f113f3e
MC		 1743 }
1744
2234212c 1745 if (chain_file != NULL) {
a773b52a 1746 if (!load_certs(chain_file, &chain, FORMAT_PEM, NULL,
0996dc54 1747 "client certificate chain"))
0f113f3e
MC		 1748 goto end;
1749 }
1750
2234212c 1751 if (crl_file != NULL) {
0f113f3e 1752 X509_CRL *crl;
9d5aca65
DO		 1753 crl = load_crl(crl_file, crl_format, "CRL");
1754 if (crl == NULL)
0f113f3e 1755 goto end;
0f113f3e 1756 crls = sk_X509_CRL_new_null();
7e1b7485 1757 if (crls == NULL || !sk_X509_CRL_push(crls, crl)) {
0f113f3e
MC		 1758 BIO_puts(bio_err, "Error adding CRL\n");
1759 ERR_print_errors(bio_err);
1760 X509_CRL_free(crl);
1761 goto end;
1762 }
1763 }
1764
7e1b7485 1765 if (!load_excert(&exc))
0f113f3e
MC		 1766 goto end;
1767
0f113f3e
MC		 1768 if (bio_c_out == NULL) {
1769 if (c_quiet && !c_debug) {
1770 bio_c_out = BIO_new(BIO_s_null());
2234212c 1771 if (c_msg && bio_c_msg == NULL)
a60994df 1772 bio_c_msg = dup_bio_out(FORMAT_TEXT);
7e1b7485 1773 } else if (bio_c_out == NULL)
a60994df 1774 bio_c_out = dup_bio_out(FORMAT_TEXT);
0f113f3e 1775 }
edc032b5 1776#ifndef OPENSSL_NO_SRP
7e1b7485 1777 if (!app_passwd(srppass, NULL, &srp_arg.srppassin, NULL)) {
0f113f3e
MC		 1778 BIO_printf(bio_err, "Error getting password\n");
1779 goto end;
1780 }
1781#endif
1782
1783 ctx = SSL_CTX_new(meth);
1784 if (ctx == NULL) {
1785 ERR_print_errors(bio_err);
1786 goto end;
1787 }
1788
693cf80c
KR		 1789 SSL_CTX_clear_mode(ctx, SSL_MODE_AUTO_RETRY);
1790
0f113f3e 1791 if (sdebug)
ecf3a1fb 1792 ssl_ctx_security_debug(ctx, sdebug);
0f113f3e 1793
8f8be103
RL		 1794 if (!config_ctx(cctx, ssl_args, ctx))
1795 goto end;
1796
2234212c 1797 if (ssl_config != NULL) {
287d0b94
DSH		 1798 if (SSL_CTX_config(ctx, ssl_config) == 0) {
1799 BIO_printf(bio_err, "Error using configuration \"%s\"\n",
1800 ssl_config);
d6073e27
F		 1801 ERR_print_errors(bio_err);
1802 goto end;
287d0b94
DSH		 1803 }
1804 }
1805
09d62b33
MT		 1806#ifndef OPENSSL_NO_SCTP
1807 if (protocol == IPPROTO_SCTP && sctp_label_bug == 1)
1808 SSL_CTX_set_mode(ctx, SSL_MODE_DTLS_SCTP_LABEL_LENGTH_BUG);
1809#endif
1810
8f8be103
RL		 1811 if (min_version != 0
1812 && SSL_CTX_set_min_proto_version(ctx, min_version) == 0)
0d5301af 1813 goto end;
8f8be103
RL		 1814 if (max_version != 0
1815 && SSL_CTX_set_max_proto_version(ctx, max_version) == 0)
0d5301af
KR		 1816 goto end;
1817
09b90e0e
DB		 1818 if (ignore_unexpected_eof)
1819 SSL_CTX_set_options(ctx, SSL_OP_IGNORE_UNEXPECTED_EOF);
1820
7e1b7485 1821 if (vpmtouched && !SSL_CTX_set1_param(ctx, vpm)) {
ac59d705
MC		 1822 BIO_printf(bio_err, "Error setting verify params\n");
1823 ERR_print_errors(bio_err);
1824 goto end;
1825 }
0f113f3e 1826
5e6f9775 1827 if (async) {
7e25dd6d 1828 SSL_CTX_set_mode(ctx, SSL_MODE_ASYNC);
5e6f9775 1829 }
28e5ea88 1830
36b2cfb1
F		 1831 if (max_send_fragment > 0
1832 && !SSL_CTX_set_max_send_fragment(ctx, max_send_fragment)) {
1833 BIO_printf(bio_err, "%s: Max send fragment size %u is out of permitted range\n",
1834 prog, max_send_fragment);
1835 goto end;
1836 }
28e5ea88 1837
36b2cfb1
F		 1838 if (split_send_fragment > 0
1839 && !SSL_CTX_set_split_send_fragment(ctx, split_send_fragment)) {
1840 BIO_printf(bio_err, "%s: Split send fragment size %u is out of permitted range\n",
1841 prog, split_send_fragment);
1842 goto end;
032c6d21 1843 }
36b2cfb1
F		 1844
1845 if (max_pipelines > 0
1846 && !SSL_CTX_set_max_pipelines(ctx, max_pipelines)) {
1847 BIO_printf(bio_err, "%s: Max pipelines %u is out of permitted range\n",
1848 prog, max_pipelines);
1849 goto end;
032c6d21 1850 }
7e25dd6d 1851
dad78fb1
MC		 1852 if (read_buf_len > 0) {
1853 SSL_CTX_set_default_read_buffer_len(ctx, read_buf_len);
1854 }
1855
cf72c757
F		 1856 if (maxfraglen > 0
1857 && !SSL_CTX_set_tlsext_max_fragment_length(ctx, maxfraglen)) {
1858 BIO_printf(bio_err,
1859 "%s: Max Fragment Length code %u is out of permitted values"
1860 "\n", prog, maxfraglen);
1861 goto end;
1862 }
1863
fd3397fc
RL		 1864 if (!ssl_load_stores(ctx,
1865 vfyCApath, vfyCAfile, vfyCAstore,
1866 chCApath, chCAfile, chCAstore,
0f113f3e
MC		 1867 crls, crl_download)) {
1868 BIO_printf(bio_err, "Error loading store locations\n");
1869 ERR_print_errors(bio_err);
1870 goto end;
1871 }
d2add501
DSH		 1872 if (ReqCAfile != NULL) {
1873 STACK_OF(X509_NAME) *nm = sk_X509_NAME_new_null();
5969a2dd 1874
d2add501
DSH		 1875 if (nm == NULL || !SSL_add_file_cert_subjects_to_stack(nm, ReqCAfile)) {
1876 sk_X509_NAME_pop_free(nm, X509_NAME_free);
1877 BIO_printf(bio_err, "Error loading CA names\n");
1878 ERR_print_errors(bio_err);
1879 goto end;
1880 }
1881 SSL_CTX_set0_CA_list(ctx, nm);
1882 }
59d2d48f 1883#ifndef OPENSSL_NO_ENGINE
0f113f3e
MC		 1884 if (ssl_client_engine) {
1885 if (!SSL_CTX_set_client_cert_engine(ctx, ssl_client_engine)) {
1886 BIO_puts(bio_err, "Error setting client auth engine\n");
1887 ERR_print_errors(bio_err);
1888 ENGINE_free(ssl_client_engine);
1889 goto end;
1890 }
1891 ENGINE_free(ssl_client_engine);
1892 }
59d2d48f
DSH		 1893#endif
1894
ddac1974 1895#ifndef OPENSSL_NO_PSK
dba31777 1896 if (psk_key != NULL) {
0f113f3e 1897 if (c_debug)
d6073e27 1898 BIO_printf(bio_c_out, "PSK key given, setting client callback\n");
0f113f3e
MC		 1899 SSL_CTX_set_psk_client_callback(ctx, psk_client_cb);
1900 }
e783bae2 1901#endif
e261bdd1
MC		 1902 if (psksessf != NULL) {
1903 BIO *stmp = BIO_new_file(psksessf, "r");
1904
1905 if (stmp == NULL) {
1906 BIO_printf(bio_err, "Can't open PSK session file %s\n", psksessf);
1907 ERR_print_errors(bio_err);
1908 goto end;
1909 }
1910 psksess = PEM_read_bio_SSL_SESSION(stmp, NULL, 0, NULL);
1911 BIO_free(stmp);
1912 if (psksess == NULL) {
1913 BIO_printf(bio_err, "Can't read PSK session file %s\n", psksessf);
1914 ERR_print_errors(bio_err);
1915 goto end;
1916 }
e261bdd1 1917 }
5ffff599
MC		 1918 if (psk_key != NULL || psksess != NULL)
1919 SSL_CTX_set_psk_use_session_callback(ctx, psk_use_session_cb);
1920
e783bae2 1921#ifndef OPENSSL_NO_SRTP
ac59d705 1922 if (srtp_profiles != NULL) {
7e1b7485
RS		 1923 /* Returns 0 on success! */
1924 if (SSL_CTX_set_tlsext_use_srtp(ctx, srtp_profiles) != 0) {
ac59d705
MC		 1925 BIO_printf(bio_err, "Error setting SRTP profile\n");
1926 ERR_print_errors(bio_err);
1927 goto end;
1928 }
1929 }
0f113f3e 1930#endif
7e1b7485 1931
2234212c 1932 if (exc != NULL)
0f113f3e 1933 ssl_ctx_set_excert(ctx, exc);
d02b48c6 1934
e481f9b9 1935#if !defined(OPENSSL_NO_NEXTPROTONEG)
2234212c 1936 if (next_proto.data != NULL)
0f113f3e 1937 SSL_CTX_set_next_proto_select_cb(ctx, next_proto_cb, &next_proto);
e481f9b9 1938#endif
0f113f3e 1939 if (alpn_in) {
817cd0d5 1940 size_t alpn_len;
0f113f3e
MC		 1941 unsigned char *alpn = next_protos_parse(&alpn_len, alpn_in);
1942
1943 if (alpn == NULL) {
1944 BIO_printf(bio_err, "Error parsing -alpn argument\n");
1945 goto end;
1946 }
7e1b7485
RS		 1947 /* Returns 0 on success! */
1948 if (SSL_CTX_set_alpn_protos(ctx, alpn, alpn_len) != 0) {
d6073e27 1949 BIO_printf(bio_err, "Error setting ALPN\n");
ac59d705
MC		 1950 goto end;
1951 }
0f113f3e
MC		 1952 OPENSSL_free(alpn);
1953 }
e481f9b9 1954
7e1b7485 1955 for (i = 0; i < serverinfo_count; i++) {
61986d32 1956 if (!SSL_CTX_add_client_custom_ext(ctx,
7e1b7485
RS		 1957 serverinfo_types[i],
1958 NULL, NULL, NULL,
1959 serverinfo_cli_parse_cb, NULL)) {
1960 BIO_printf(bio_err,
d6073e27
F		 1961 "Warning: Unable to add custom extension %u, skipping\n",
1962 serverinfo_types[i]);
ac59d705 1963 }
0f113f3e 1964 }
ee2ffc27 1965
0f113f3e
MC		 1966 if (state)
1967 SSL_CTX_set_info_callback(ctx, apps_ssl_info_callback);
d02b48c6 1968
dd696a55 1969#ifndef OPENSSL_NO_CT
43341433
VD		 1970 /* Enable SCT processing, without early connection termination */
1971 if (ct_validation &&
1972 !SSL_CTX_enable_ct(ctx, SSL_CT_VALIDATION_PERMISSIVE)) {
dd696a55
RP		 1973 ERR_print_errors(bio_err);
1974 goto end;
1975 }
1976
70073f3e 1977 if (!ctx_set_ctlog_list_file(ctx, ctlog_file)) {
43341433 1978 if (ct_validation) {
328f36c5
RP		 1979 ERR_print_errors(bio_err);
1980 goto end;
1981 }
1982
1983 /*
1984 * If CT validation is not enabled, the log list isn't needed so don't
1985 * show errors or abort. We try to load it regardless because then we
1986 * can show the names of the logs any SCTs came from (SCTs may be seen
1987 * even with validation disabled).
1988 */
1989 ERR_clear_error();
dd696a55
RP		 1990 }
1991#endif
1992
0f113f3e 1993 SSL_CTX_set_verify(ctx, verify, verify_callback);
d02b48c6 1994
fd3397fc
RL		 1995 if (!ctx_set_verify_locations(ctx, CAfile, noCAfile, CApath, noCApath,
1996 CAstore, noCAstore)) {
0f113f3e 1997 ERR_print_errors(bio_err);
7e1b7485 1998 goto end;
0f113f3e 1999 }
d02b48c6 2000
0f113f3e 2001 ssl_ctx_add_crls(ctx, crls, crl_download);
fdb78f3d 2002
0f113f3e
MC		 2003 if (!set_cert_key_stuff(ctx, cert, key, chain, build_chain))
2004 goto end;
74ecfab4 2005
11ba87f2 2006 if (!noservername) {
0f113f3e
MC		 2007 tlsextcbp.biodebug = bio_err;
2008 SSL_CTX_set_tlsext_servername_callback(ctx, ssl_servername_cb);
2009 SSL_CTX_set_tlsext_servername_arg(ctx, &tlsextcbp);
2010 }
2011# ifndef OPENSSL_NO_SRP
2012 if (srp_arg.srplogin) {
2013 if (!srp_lateuser && !SSL_CTX_set_srp_username(ctx, srp_arg.srplogin)) {
2014 BIO_printf(bio_err, "Unable to set SRP username\n");
2015 goto end;
2016 }
2017 srp_arg.msg = c_msg;
2018 srp_arg.debug = c_debug;
2019 SSL_CTX_set_srp_cb_arg(ctx, &srp_arg);
2020 SSL_CTX_set_srp_client_pwd_callback(ctx, ssl_give_srp_client_pwd_cb);
2021 SSL_CTX_set_srp_strength(ctx, srp_arg.strength);
2022 if (c_msg || c_debug || srp_arg.amp == 0)
2023 SSL_CTX_set_srp_verify_param_callback(ctx,
2024 ssl_srp_verify_param_cb);
2025 }
2026# endif
0f113f3e 2027
cddd424a
VD		 2028 if (dane_tlsa_domain != NULL) {
2029 if (SSL_CTX_dane_enable(ctx) <= 0) {
2030 BIO_printf(bio_err,
d6073e27
F		 2031 "%s: Error enabling DANE TLSA authentication.\n",
2032 prog);
cddd424a
VD		 2033 ERR_print_errors(bio_err);
2034 goto end;
2035 }
2036 }
2037
be62b22b
MC		 2038 /*
2039 * In TLSv1.3 NewSessionTicket messages arrive after the handshake and can
2040 * come at any time. Therefore we use a callback to write out the session
2041 * when we know about it. This approach works for < TLSv1.3 as well.
2042 */
20c0bce5
MC		 2043 SSL_CTX_set_session_cache_mode(ctx, SSL_SESS_CACHE_CLIENT
2044 | SSL_SESS_CACHE_NO_INTERNAL_STORE);
2045 SSL_CTX_sess_set_new_cb(ctx, new_session_cb);
be62b22b 2046
4bf73e9f
PW		 2047 if (set_keylog_file(ctx, keylog_file))
2048 goto end;
2049
0f113f3e 2050 con = SSL_new(ctx);
f84a648c
K		 2051 if (con == NULL)
2052 goto end;
2053
32097b33
MC		 2054 if (enable_pha)
2055 SSL_set_post_handshake_auth(con, 1);
9d75dce3 2056
2234212c 2057 if (sess_in != NULL) {
0f113f3e
MC		 2058 SSL_SESSION *sess;
2059 BIO *stmp = BIO_new_file(sess_in, "r");
2234212c 2060 if (stmp == NULL) {
0f113f3e
MC		 2061 BIO_printf(bio_err, "Can't open session file %s\n", sess_in);
2062 ERR_print_errors(bio_err);
2063 goto end;
2064 }
2065 sess = PEM_read_bio_SSL_SESSION(stmp, NULL, 0, NULL);
2066 BIO_free(stmp);
2234212c 2067 if (sess == NULL) {
0f113f3e
MC		 2068 BIO_printf(bio_err, "Can't open session file %s\n", sess_in);
2069 ERR_print_errors(bio_err);
2070 goto end;
2071 }
61986d32 2072 if (!SSL_set_session(con, sess)) {
ac59d705
MC		 2073 BIO_printf(bio_err, "Can't set session\n");
2074 ERR_print_errors(bio_err);
2075 goto end;
2076 }
b510b740 2077
0f113f3e
MC		 2078 SSL_SESSION_free(sess);
2079 }
2080
2081 if (fallback_scsv)
2082 SSL_set_mode(con, SSL_MODE_SEND_FALLBACK_SCSV);
cf6da053 2083
11ba87f2 2084 if (!noservername && (servername != NULL || dane_tlsa_domain == NULL)) {
8e981051 2085 if (servername == NULL) {
4bd8b240 2086 if(host == NULL || is_dNS_name(host))
8e981051
IM		 2087 servername = (host == NULL) ? "localhost" : host;
2088 }
2089 if (servername != NULL && !SSL_set_tlsext_host_name(con, servername)) {
0f113f3e
MC		 2090 BIO_printf(bio_err, "Unable to set TLS servername extension.\n");
2091 ERR_print_errors(bio_err);
2092 goto end;
2093 }
2094 }
d02b48c6 2095
cddd424a
VD		 2096 if (dane_tlsa_domain != NULL) {
2097 if (SSL_dane_enable(con, dane_tlsa_domain) <= 0) {
2098 BIO_printf(bio_err, "%s: Error enabling DANE TLSA "
2099 "authentication.\n", prog);
2100 ERR_print_errors(bio_err);
2101 goto end;
2102 }
2103 if (dane_tlsa_rrset == NULL) {
2104 BIO_printf(bio_err, "%s: DANE TLSA authentication requires at "
bc87fb6b 2105 "least one -dane_tlsa_rrdata option.\n", prog);
cddd424a
VD		 2106 goto end;
2107 }
2108 if (tlsa_import_rrset(con, dane_tlsa_rrset) <= 0) {
2109 BIO_printf(bio_err, "%s: Failed to import any TLSA "
2110 "records.\n", prog);
2111 goto end;
2112 }
c4fbed6c
VD		 2113 if (dane_ee_no_name)
2114 SSL_dane_set_flags(con, DANE_FLAG_NO_DANE_EE_NAMECHECKS);
cddd424a 2115 } else if (dane_tlsa_rrset != NULL) {
bde136c8
F		 2116 BIO_printf(bio_err, "%s: DANE TLSA authentication requires the "
2117 "-dane_tlsa_domain option.\n", prog);
2118 goto end;
cddd424a
VD		 2119 }
2120
0f113f3e 2121 re_start:
29f178bd 2122 if (init_client(&sock, host, port, bindhost, bindport, socket_family,
ebc01683 2123 socket_type, protocol) == 0) {
0f113f3e 2124 BIO_printf(bio_err, "connect:errno=%d\n", get_last_socket_error());
29f178bd 2125 BIO_closesocket(sock);
0f113f3e
MC		 2126 goto end;
2127 }
29f178bd 2128 BIO_printf(bio_c_out, "CONNECTED(%08X)\n", sock);
d02b48c6 2129
0f113f3e 2130 if (c_nbio) {
29f178bd 2131 if (!BIO_socket_nbio(sock, 1)) {
0f113f3e
MC		 2132 ERR_print_errors(bio_err);
2133 goto end;
2134 }
ba810815 2135 BIO_printf(bio_c_out, "Turned on non blocking io\n");
0f113f3e 2136 }
40a8e9c2 2137#ifndef OPENSSL_NO_DTLS
8ccc2377 2138 if (isdtls) {
642a166c 2139 union BIO_sock_info_u peer_info;
0f113f3e 2140
8ccc2377
MC		 2141#ifndef OPENSSL_NO_SCTP
2142 if (protocol == IPPROTO_SCTP)
29f178bd 2143 sbio = BIO_new_dgram_sctp(sock, BIO_NOCLOSE);
8ccc2377
MC		 2144 else
2145#endif
29f178bd 2146 sbio = BIO_new_dgram(sock, BIO_NOCLOSE);
8ccc2377 2147
642a166c
RL		 2148 if ((peer_info.addr = BIO_ADDR_new()) == NULL) {
2149 BIO_printf(bio_err, "memory allocation failure\n");
29f178bd 2150 BIO_closesocket(sock);
d6accd50 2151 goto end;
642a166c 2152 }
29f178bd 2153 if (!BIO_sock_info(sock, BIO_SOCK_INFO_ADDRESS, &peer_info)) {
0f113f3e
MC		 2154 BIO_printf(bio_err, "getsockname:errno=%d\n",
2155 get_last_socket_error());
642a166c 2156 BIO_ADDR_free(peer_info.addr);
29f178bd 2157 BIO_closesocket(sock);
0f113f3e
MC		 2158 goto end;
2159 }
2160
642a166c
RL		 2161 (void)BIO_ctrl_set_connected(sbio, peer_info.addr);
2162 BIO_ADDR_free(peer_info.addr);
2163 peer_info.addr = NULL;
0f113f3e
MC		 2164
2165 if (enable_timeouts) {
2166 timeout.tv_sec = 0;
2167 timeout.tv_usec = DGRAM_RCV_TIMEOUT;
2168 BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_RECV_TIMEOUT, 0, &timeout);
2169
2170 timeout.tv_sec = 0;
2171 timeout.tv_usec = DGRAM_SND_TIMEOUT;
2172 BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_SEND_TIMEOUT, 0, &timeout);
2173 }
2174
2175 if (socket_mtu) {
2176 if (socket_mtu < DTLS_get_link_min_mtu(con)) {
2177 BIO_printf(bio_err, "MTU too small. Must be at least %ld\n",
2178 DTLS_get_link_min_mtu(con));
2179 BIO_free(sbio);
2180 goto shut;
2181 }
2182 SSL_set_options(con, SSL_OP_NO_QUERY_MTU);
2183 if (!DTLS_set_link_mtu(con, socket_mtu)) {
2184 BIO_printf(bio_err, "Failed to set MTU\n");
2185 BIO_free(sbio);
2186 goto shut;
2187 }
2234212c 2188 } else {
0f113f3e
MC		 2189 /* want to do MTU discovery */
2190 BIO_ctrl(sbio, BIO_CTRL_DGRAM_MTU_DISCOVER, 0, NULL);
2234212c 2191 }
0f113f3e 2192 } else
40a8e9c2 2193#endif /* OPENSSL_NO_DTLS */
29f178bd 2194 sbio = BIO_new_socket(sock, BIO_NOCLOSE);
0f113f3e
MC		 2195
2196 if (nbio_test) {
2197 BIO *test;
2198
2199 test = BIO_new(BIO_f_nbio_test());
2200 sbio = BIO_push(test, sbio);
2201 }
2202
2203 if (c_debug) {
0f113f3e
MC		 2204 BIO_set_callback(sbio, bio_dump_callback);
2205 BIO_set_callback_arg(sbio, (char *)bio_c_out);
2206 }
2207 if (c_msg) {
93ab9e42 2208#ifndef OPENSSL_NO_SSL_TRACE
0f113f3e
MC		 2209 if (c_msg == 2)
2210 SSL_set_msg_callback(con, SSL_trace);
2211 else
93ab9e42 2212#endif
0f113f3e
MC		 2213 SSL_set_msg_callback(con, msg_cb);
2214 SSL_set_msg_callback_arg(con, bio_c_msg ? bio_c_msg : bio_c_out);
2215 }
e481f9b9 2216
0f113f3e
MC		 2217 if (c_tlsextdebug) {
2218 SSL_set_tlsext_debug_callback(con, tlsext_cb);
2219 SSL_set_tlsext_debug_arg(con, bio_c_out);
2220 }
3e41ac35 2221#ifndef OPENSSL_NO_OCSP
0f113f3e
MC		 2222 if (c_status_req) {
2223 SSL_set_tlsext_status_type(con, TLSEXT_STATUSTYPE_ocsp);
2224 SSL_CTX_set_tlsext_status_cb(ctx, ocsp_resp_cb);
2225 SSL_CTX_set_tlsext_status_arg(ctx, bio_c_out);
0f113f3e 2226 }
3e41ac35 2227#endif
0f113f3e
MC		 2228
2229 SSL_set_bio(con, sbio, sbio);
2230 SSL_set_connect_state(con);
2231
2232 /* ok, lets connect */
51e5133d
RL		 2233 if (fileno_stdin() > SSL_get_fd(con))
2234 width = fileno_stdin() + 1;
0d3b6583
RL		 2235 else
2236 width = SSL_get_fd(con) + 1;
51e5133d 2237
0f113f3e
MC		 2238 read_tty = 1;
2239 write_tty = 0;
2240 tty_on = 0;
2241 read_ssl = 1;
2242 write_ssl = 1;
2243
2244 cbuf_len = 0;
2245 cbuf_off = 0;
2246 sbuf_len = 0;
2247 sbuf_off = 0;
2248
7e1b7485
RS		 2249 switch ((PROTOCOL_CHOICE) starttls_proto) {
2250 case PROTO_OFF:
2251 break;
9576545a 2252 case PROTO_LMTP:
7e1b7485
RS		 2253 case PROTO_SMTP:
2254 {
2255 /*
2256 * This is an ugly hack that does a lot of assumptions. We do
2257 * have to handle multi-line responses which may come in a single
2258 * packet or not. We therefore have to use BIO_gets() which does
2259 * need a buffering BIO. So during the initial chitchat we do
2260 * push a buffering BIO into the chain that is removed again
2261 * later on to not disturb the rest of the s_client operation.
2262 */
2263 int foundit = 0;
2264 BIO *fbio = BIO_new(BIO_f_buffer());
20967afb 2265
7e1b7485 2266 BIO_push(fbio, sbio);
9576545a 2267 /* Wait for multi-line response to end from LMTP or SMTP */
7e1b7485
RS		 2268 do {
2269 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
20967afb 2270 } while (mbuf_len > 3 && mbuf[3] == '-');
8176431d
PY		 2271 if (protohost == NULL)
2272 protohost = "mail.example.com";
7524c520 2273 if (starttls_proto == (int)PROTO_LMTP)
8176431d 2274 BIO_printf(fbio, "LHLO %s\r\n", protohost);
7524c520 2275 else
8176431d 2276 BIO_printf(fbio, "EHLO %s\r\n", protohost);
7e1b7485 2277 (void)BIO_flush(fbio);
9576545a
RS		 2278 /*
2279 * Wait for multi-line response to end LHLO LMTP or EHLO SMTP
2280 * response.
2281 */
7e1b7485
RS		 2282 do {
2283 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2284 if (strstr(mbuf, "STARTTLS"))
2285 foundit = 1;
20967afb 2286 } while (mbuf_len > 3 && mbuf[3] == '-');
7e1b7485
RS		 2287 (void)BIO_flush(fbio);
2288 BIO_pop(fbio);
2289 BIO_free(fbio);
2290 if (!foundit)
2291 BIO_printf(bio_err,
20967afb 2292 "Didn't find STARTTLS in server response,"
c7944cf1 2293 " trying anyway...\n");
7e1b7485
RS		 2294 BIO_printf(sbio, "STARTTLS\r\n");
2295 BIO_read(sbio, sbuf, BUFSIZZ);
0f113f3e 2296 }
7e1b7485
RS		 2297 break;
2298 case PROTO_POP3:
2299 {
2300 BIO_read(sbio, mbuf, BUFSIZZ);
2301 BIO_printf(sbio, "STLS\r\n");
2302 mbuf_len = BIO_read(sbio, sbuf, BUFSIZZ);
2303 if (mbuf_len < 0) {
2304 BIO_printf(bio_err, "BIO_read failed\n");
2305 goto end;
2306 }
0f113f3e 2307 }
7e1b7485
RS		 2308 break;
2309 case PROTO_IMAP:
2310 {
2311 int foundit = 0;
2312 BIO *fbio = BIO_new(BIO_f_buffer());
20967afb 2313
7e1b7485
RS		 2314 BIO_push(fbio, sbio);
2315 BIO_gets(fbio, mbuf, BUFSIZZ);
2316 /* STARTTLS command requires CAPABILITY... */
2317 BIO_printf(fbio, ". CAPABILITY\r\n");
2318 (void)BIO_flush(fbio);
2319 /* wait for multi-line CAPABILITY response */
2320 do {
2321 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2322 if (strstr(mbuf, "STARTTLS"))
2323 foundit = 1;
2324 }
2325 while (mbuf_len > 3 && mbuf[0] != '.');
2326 (void)BIO_flush(fbio);
2327 BIO_pop(fbio);
2328 BIO_free(fbio);
2329 if (!foundit)
2330 BIO_printf(bio_err,
20967afb 2331 "Didn't find STARTTLS in server response,"
c7944cf1 2332 " trying anyway...\n");
7e1b7485
RS		 2333 BIO_printf(sbio, ". STARTTLS\r\n");
2334 BIO_read(sbio, sbuf, BUFSIZZ);
0f113f3e 2335 }
7e1b7485
RS		 2336 break;
2337 case PROTO_FTP:
2338 {
2339 BIO *fbio = BIO_new(BIO_f_buffer());
20967afb 2340
7e1b7485
RS		 2341 BIO_push(fbio, sbio);
2342 /* wait for multi-line response to end from FTP */
2343 do {
2344 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2345 }
f997e456 2346 while (mbuf_len > 3 && (!isdigit(mbuf[0]) || !isdigit(mbuf[1]) || !isdigit(mbuf[2]) || mbuf[3] != ' '));
7e1b7485
RS		 2347 (void)BIO_flush(fbio);
2348 BIO_pop(fbio);
2349 BIO_free(fbio);
2350 BIO_printf(sbio, "AUTH TLS\r\n");
2351 BIO_read(sbio, sbuf, BUFSIZZ);
0f113f3e 2352 }
7e1b7485
RS		 2353 break;
2354 case PROTO_XMPP:
898ea7b8 2355 case PROTO_XMPP_SERVER:
0f113f3e 2356 {
7e1b7485
RS		 2357 int seen = 0;
2358 BIO_printf(sbio, "<stream:stream "
2359 "xmlns:stream='http://etherx.jabber.org/streams' "
898ea7b8
KE		 2360 "xmlns='jabber:%s' to='%s' version='1.0'>",
2361 starttls_proto == PROTO_XMPP ? "client" : "server",
8176431d 2362 protohost ? protohost : host);
0f113f3e 2363 seen = BIO_read(sbio, mbuf, BUFSIZZ);
20967afb
RS		 2364 if (seen < 0) {
2365 BIO_printf(bio_err, "BIO_read failed\n");
2366 goto end;
2367 }
2368 mbuf[seen] = '\0';
7e1b7485
RS		 2369 while (!strstr
2370 (mbuf, "<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'")
2371 && !strstr(mbuf,
2372 "<starttls xmlns=\"urn:ietf:params:xml:ns:xmpp-tls\""))
2373 {
2374 seen = BIO_read(sbio, mbuf, BUFSIZZ);
0f113f3e 2375
7e1b7485
RS		 2376 if (seen <= 0)
2377 goto shut;
0f113f3e 2378
20967afb 2379 mbuf[seen] = '\0';
7e1b7485
RS		 2380 }
2381 BIO_printf(sbio,
2382 "<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'/>");
2383 seen = BIO_read(sbio, sbuf, BUFSIZZ);
20967afb
RS		 2384 if (seen < 0) {
2385 BIO_printf(bio_err, "BIO_read failed\n");
2386 goto shut;
2387 }
2388 sbuf[seen] = '\0';
7e1b7485
RS		 2389 if (!strstr(sbuf, "<proceed"))
2390 goto shut;
20967afb 2391 mbuf[0] = '\0';
0f113f3e 2392 }
7e1b7485 2393 break;
d8c25de5
RS		 2394 case PROTO_TELNET:
2395 {
2396 static const unsigned char tls_do[] = {
2397 /* IAC DO START_TLS */
2398 255, 253, 46
2399 };
2400 static const unsigned char tls_will[] = {
2401 /* IAC WILL START_TLS */
2402 255, 251, 46
2403 };
2404 static const unsigned char tls_follows[] = {
2405 /* IAC SB START_TLS FOLLOWS IAC SE */
2406 255, 250, 46, 1, 255, 240
2407 };
2408 int bytes;
2409
2410 /* Telnet server should demand we issue START_TLS */
2411 bytes = BIO_read(sbio, mbuf, BUFSIZZ);
2412 if (bytes != 3 || memcmp(mbuf, tls_do, 3) != 0)
2413 goto shut;
2414 /* Agree to issue START_TLS and send the FOLLOWS sub-command */
2415 BIO_write(sbio, tls_will, 3);
2416 BIO_write(sbio, tls_follows, 6);
2417 (void)BIO_flush(sbio);
2418 /* Telnet server also sent the FOLLOWS sub-command */
2419 bytes = BIO_read(sbio, mbuf, BUFSIZZ);
2420 if (bytes != 6 || memcmp(mbuf, tls_follows, 6) != 0)
2421 goto shut;
2422 }
552bf8ec
MT		 2423 break;
2424 case PROTO_CONNECT:
f7201301
M		 2425 /* Here we must use the connect string target host & port */
2426 if (!OSSL_HTTP_proxy_connect(sbio, thost, tport, proxyuser, proxypass,
29f178bd
DDO		 2427 0 /* no timeout */, bio_err, prog))
2428 goto shut;
552bf8ec 2429 break;
cfb4f1ef
NPB		 2430 case PROTO_IRC:
2431 {
2432 int numeric;
2433 BIO *fbio = BIO_new(BIO_f_buffer());
2434
2435 BIO_push(fbio, sbio);
2436 BIO_printf(fbio, "STARTTLS\r\n");
2437 (void)BIO_flush(fbio);
2438 width = SSL_get_fd(con) + 1;
2439
2440 do {
2441 numeric = 0;
2442
2443 FD_ZERO(&readfds);
2444 openssl_fdset(SSL_get_fd(con), &readfds);
2445 timeout.tv_sec = S_CLIENT_IRC_READ_TIMEOUT;
2446 timeout.tv_usec = 0;
2447 /*
2448 * If the IRCd doesn't respond within
2449 * S_CLIENT_IRC_READ_TIMEOUT seconds, assume
2450 * it doesn't support STARTTLS. Many IRCds
2451 * will not give _any_ sort of response to a
2452 * STARTTLS command when it's not supported.
2453 */
2454 if (!BIO_get_buffer_num_lines(fbio)
2455 && !BIO_pending(fbio)
2456 && !BIO_pending(sbio)
2457 && select(width, (void *)&readfds, NULL, NULL,
2458 &timeout) < 1) {
2459 BIO_printf(bio_err,
2460 "Timeout waiting for response (%d seconds).\n",
2461 S_CLIENT_IRC_READ_TIMEOUT);
2462 break;
2463 }
2464
2465 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2466 if (mbuf_len < 1 || sscanf(mbuf, "%*s %d", &numeric) != 1)
2467 break;
2468 /* :example.net 451 STARTTLS :You have not registered */
2469 /* :example.net 421 STARTTLS :Unknown command */
2470 if ((numeric == 451 || numeric == 421)
2471 && strstr(mbuf, "STARTTLS") != NULL) {
2472 BIO_printf(bio_err, "STARTTLS not supported: %s", mbuf);
2473 break;
2474 }
2475 if (numeric == 691) {
2476 BIO_printf(bio_err, "STARTTLS negotiation failed: ");
2477 ERR_print_errors(bio_err);
2478 break;
2479 }
2480 } while (numeric != 670);
2481
2482 (void)BIO_flush(fbio);
2483 BIO_pop(fbio);
2484 BIO_free(fbio);
2485 if (numeric != 670) {
2486 BIO_printf(bio_err, "Server does not support STARTTLS.\n");
2487 ret = 1;
2488 goto shut;
2489 }
2490 }
b2e54eb8 2491 break;
a2d9cfba
KT		 2492 case PROTO_MYSQL:
2493 {
2494 /* SSL request packet */
2495 static const unsigned char ssl_req[] = {
2496 /* payload_length, sequence_id */
2497 0x20, 0x00, 0x00, 0x01,
2498 /* payload */
2499 /* capability flags, CLIENT_SSL always set */
2500 0x85, 0xae, 0x7f, 0x00,
2501 /* max-packet size */
2502 0x00, 0x00, 0x00, 0x01,
2503 /* character set */
2504 0x21,
2505 /* string[23] reserved (all [0]) */
2506 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
2507 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
2508 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
2509 };
2510 int bytes = 0;
2511 int ssl_flg = 0x800;
2512 int pos;
2513 const unsigned char *packet = (const unsigned char *)sbuf;
2514
2515 /* Receiving Initial Handshake packet. */
2516 bytes = BIO_read(sbio, (void *)packet, BUFSIZZ);
2517 if (bytes < 0) {
2518 BIO_printf(bio_err, "BIO_read failed\n");
2519 goto shut;
2520 /* Packet length[3], Packet number[1] + minimum payload[17] */
2521 } else if (bytes < 21) {
2522 BIO_printf(bio_err, "MySQL packet too short.\n");
2523 goto shut;
2524 } else if (bytes != (4 + packet[0] +
2525 (packet[1] << 8) +
2526 (packet[2] << 16))) {
2527 BIO_printf(bio_err, "MySQL packet length does not match.\n");
2528 goto shut;
2529 /* protocol version[1] */
2530 } else if (packet[4] != 0xA) {
2531 BIO_printf(bio_err,
2532 "Only MySQL protocol version 10 is supported.\n");
2533 goto shut;
2534 }
2535
2536 pos = 5;
2537 /* server version[string+NULL] */
2538 for (;;) {
2539 if (pos >= bytes) {
2540 BIO_printf(bio_err, "Cannot confirm server version. ");
2541 goto shut;
2542 } else if (packet[pos++] == '\0') {
2543 break;
2544 }
a2d9cfba
KT		 2545 }
2546
8530039a 2547 /* make sure we have at least 15 bytes left in the packet */
a2d9cfba
KT		 2548 if (pos + 15 > bytes) {
2549 BIO_printf(bio_err,
2550 "MySQL server handshake packet is broken.\n");
2551 goto shut;
2552 }
2553
2554 pos += 12; /* skip over conn id[4] + SALT[8] */
2555 if (packet[pos++] != '\0') { /* verify filler */
2556 BIO_printf(bio_err,
2557 "MySQL packet is broken.\n");
2558 goto shut;
2559 }
2560
2561 /* capability flags[2] */
2562 if (!((packet[pos] + (packet[pos + 1] << 8)) & ssl_flg)) {
2563 BIO_printf(bio_err, "MySQL server does not support SSL.\n");
2564 goto shut;
2565 }
2566
2567 /* Sending SSL Handshake packet. */
2568 BIO_write(sbio, ssl_req, sizeof(ssl_req));
2569 (void)BIO_flush(sbio);
2570 }
2571 break;
b2e54eb8
VV		 2572 case PROTO_POSTGRES:
2573 {
2574 static const unsigned char ssl_request[] = {
2575 /* Length SSLRequest */
2576 0, 0, 0, 8, 4, 210, 22, 47
2577 };
2578 int bytes;
2579
2580 /* Send SSLRequest packet */
2581 BIO_write(sbio, ssl_request, 8);
2582 (void)BIO_flush(sbio);
2583
2584 /* Reply will be a single S if SSL is enabled */
2585 bytes = BIO_read(sbio, sbuf, BUFSIZZ);
2586 if (bytes != 1 || sbuf[0] != 'S')
2587 goto shut;
2588 }
2589 break;
8f85aa6b
RS		 2590 case PROTO_NNTP:
2591 {
2592 int foundit = 0;
2593 BIO *fbio = BIO_new(BIO_f_buffer());
2594
2595 BIO_push(fbio, sbio);
2596 BIO_gets(fbio, mbuf, BUFSIZZ);
2597 /* STARTTLS command requires CAPABILITIES... */
2598 BIO_printf(fbio, "CAPABILITIES\r\n");
2599 (void)BIO_flush(fbio);
5aa2a7ea
Q		 2600 BIO_gets(fbio, mbuf, BUFSIZZ);
2601 /* no point in trying to parse the CAPABILITIES response if there is none */
2602 if (strstr(mbuf, "101") != NULL) {
2603 /* wait for multi-line CAPABILITIES response */
2604 do {
2605 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2606 if (strstr(mbuf, "STARTTLS"))
2607 foundit = 1;
2608 } while (mbuf_len > 1 && mbuf[0] != '.');
2609 }
8f85aa6b
RS		 2610 (void)BIO_flush(fbio);
2611 BIO_pop(fbio);
2612 BIO_free(fbio);
2613 if (!foundit)
2614 BIO_printf(bio_err,
2615 "Didn't find STARTTLS in server response,"
2616 " trying anyway...\n");
2617 BIO_printf(sbio, "STARTTLS\r\n");
af7e05c7
RS		 2618 mbuf_len = BIO_read(sbio, mbuf, BUFSIZZ);
2619 if (mbuf_len < 0) {
2620 BIO_printf(bio_err, "BIO_read failed\n");
2621 goto end;
2622 }
2623 mbuf[mbuf_len] = '\0';
2624 if (strstr(mbuf, "382") == NULL) {
2625 BIO_printf(bio_err, "STARTTLS failed: %s", mbuf);
2626 goto shut;
2627 }
8f85aa6b
RS		 2628 }
2629 break;
20967afb
RS		 2630 case PROTO_SIEVE:
2631 {
2632 int foundit = 0;
2633 BIO *fbio = BIO_new(BIO_f_buffer());
2634
2635 BIO_push(fbio, sbio);
2636 /* wait for multi-line response to end from Sieve */
2637 do {
2638 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2639 /*
2640 * According to RFC 5804 § 1.7, capability
2641 * is case-insensitive, make it uppercase
2642 */
2643 if (mbuf_len > 1 && mbuf[0] == '"') {
2644 make_uppercase(mbuf);
2645 if (strncmp(mbuf, "\"STARTTLS\"", 10) == 0)
2646 foundit = 1;
2647 }
2648 } while (mbuf_len > 1 && mbuf[0] == '"');
2649 (void)BIO_flush(fbio);
2650 BIO_pop(fbio);
2651 BIO_free(fbio);
2652 if (!foundit)
2653 BIO_printf(bio_err,
2654 "Didn't find STARTTLS in server response,"
2655 " trying anyway...\n");
2656 BIO_printf(sbio, "STARTTLS\r\n");
2657 mbuf_len = BIO_read(sbio, mbuf, BUFSIZZ);
2658 if (mbuf_len < 0) {
2659 BIO_printf(bio_err, "BIO_read failed\n");
2660 goto end;
af7e05c7
RS		 2661 }
2662 mbuf[mbuf_len] = '\0';
2663 if (mbuf_len < 2) {
2664 BIO_printf(bio_err, "STARTTLS failed: %s", mbuf);
20967afb
RS		 2665 goto shut;
2666 }
2667 /*
2668 * According to RFC 5804 § 2.2, response codes are case-
2669 * insensitive, make it uppercase but preserve the response.
2670 */
20967afb
RS		 2671 strncpy(sbuf, mbuf, 2);
2672 make_uppercase(sbuf);
2673 if (strncmp(sbuf, "OK", 2) != 0) {
2674 BIO_printf(bio_err, "STARTTLS not supported: %s", mbuf);
2675 goto shut;
2676 }
2677 }
2678 break;
398b0bbd
RS		 2679 case PROTO_LDAP:
2680 {
2681 /* StartTLS Operation according to RFC 4511 */
2682 static char ldap_tls_genconf[] = "asn1=SEQUENCE:LDAPMessage\n"
2683 "[LDAPMessage]\n"
2684 "messageID=INTEGER:1\n"
2685 "extendedReq=EXPLICIT:23A,IMPLICIT:0C,"
2686 "FORMAT:ASCII,OCT:1.3.6.1.4.1.1466.20037\n";
2687 long errline = -1;
2688 char *genstr = NULL;
2689 int result = -1;
2690 ASN1_TYPE *atyp = NULL;
2691 BIO *ldapbio = BIO_new(BIO_s_mem());
2692 CONF *cnf = NCONF_new(NULL);
2693
2694 if (cnf == NULL) {
2695 BIO_free(ldapbio);
2696 goto end;
2697 }
2698 BIO_puts(ldapbio, ldap_tls_genconf);
2699 if (NCONF_load_bio(cnf, ldapbio, &errline) <= 0) {
2700 BIO_free(ldapbio);
2701 NCONF_free(cnf);
2702 if (errline <= 0) {
2703 BIO_printf(bio_err, "NCONF_load_bio failed\n");
2704 goto end;
2705 } else {
2706 BIO_printf(bio_err, "Error on line %ld\n", errline);
2707 goto end;
2708 }
2709 }
2710 BIO_free(ldapbio);
2711 genstr = NCONF_get_string(cnf, "default", "asn1");
2712 if (genstr == NULL) {
2713 NCONF_free(cnf);
2714 BIO_printf(bio_err, "NCONF_get_string failed\n");
2715 goto end;
2716 }
2717 atyp = ASN1_generate_nconf(genstr, cnf);
2718 if (atyp == NULL) {
2719 NCONF_free(cnf);
2720 BIO_printf(bio_err, "ASN1_generate_nconf failed\n");
2721 goto end;
2722 }
2723 NCONF_free(cnf);
2724
2725 /* Send SSLRequest packet */
2726 BIO_write(sbio, atyp->value.sequence->data,
2727 atyp->value.sequence->length);
2728 (void)BIO_flush(sbio);
2729 ASN1_TYPE_free(atyp);
2730
2731 mbuf_len = BIO_read(sbio, mbuf, BUFSIZZ);
2732 if (mbuf_len < 0) {
2733 BIO_printf(bio_err, "BIO_read failed\n");
2734 goto end;
2735 }
2736 result = ldap_ExtendedResponse_parse(mbuf, mbuf_len);
2737 if (result < 0) {
2738 BIO_printf(bio_err, "ldap_ExtendedResponse_parse failed\n");
2739 goto shut;
2740 } else if (result > 0) {
2741 BIO_printf(bio_err, "STARTTLS failed, LDAP Result Code: %i\n",
2742 result);
2743 goto shut;
2744 }
2745 mbuf_len = 0;
2746 }
2747 break;
0f113f3e
MC		 2748 }
2749
0a5ece5b 2750 if (early_data_file != NULL
add8d0e9
MC		 2751 && ((SSL_get0_session(con) != NULL
2752 && SSL_SESSION_get_max_early_data(SSL_get0_session(con)) > 0)
2753 || (psksess != NULL
2754 && SSL_SESSION_get_max_early_data(psksess) > 0))) {
923ac827
MC		 2755 BIO *edfile = BIO_new_file(early_data_file, "r");
2756 size_t readbytes, writtenbytes;
2757 int finish = 0;
2758
2759 if (edfile == NULL) {
2760 BIO_printf(bio_err, "Cannot open early data file\n");
2761 goto shut;
2762 }
2763
2764 while (!finish) {
2765 if (!BIO_read_ex(edfile, cbuf, BUFSIZZ, &readbytes))
2766 finish = 1;
2767
0665b4ed 2768 while (!SSL_write_early_data(con, cbuf, readbytes, &writtenbytes)) {
923ac827
MC		 2769 switch (SSL_get_error(con, 0)) {
2770 case SSL_ERROR_WANT_WRITE:
2771 case SSL_ERROR_WANT_ASYNC:
2772 case SSL_ERROR_WANT_READ:
2773 /* Just keep trying - busy waiting */
2774 continue;
2775 default:
2776 BIO_printf(bio_err, "Error writing early data\n");
2777 BIO_free(edfile);
dd5b98c5 2778 ERR_print_errors(bio_err);
923ac827
MC		 2779 goto shut;
2780 }
2781 }
2782 }
2783
2784 BIO_free(edfile);
2785 }
2786
0f113f3e
MC		 2787 for (;;) {
2788 FD_ZERO(&readfds);
2789 FD_ZERO(&writefds);
2790
6f6da2fe 2791 if (SSL_is_dtls(con) && DTLSv1_get_timeout(con, &timeout))
0f113f3e
MC		 2792 timeoutp = &timeout;
2793 else
2794 timeoutp = NULL;
2795
12557a34 2796 if (!SSL_is_init_finished(con) && SSL_total_renegotiations(con) == 0
b07b2a1b 2797 && SSL_get_key_update_type(con) == SSL_KEY_UPDATE_NONE) {
0f113f3e
MC		 2798 in_init = 1;
2799 tty_on = 0;
2800 } else {
2801 tty_on = 1;
2802 if (in_init) {
2803 in_init = 0;
e481f9b9 2804
0f113f3e
MC		 2805 if (c_brief) {
2806 BIO_puts(bio_err, "CONNECTION ESTABLISHED\n");
ecf3a1fb 2807 print_ssl_summary(con);
0f113f3e
MC		 2808 }
2809
0d4d5ab8 2810 print_stuff(bio_c_out, con, full_log);
0f113f3e
MC		 2811 if (full_log > 0)
2812 full_log--;
2813
2814 if (starttls_proto) {
7e1b7485 2815 BIO_write(bio_err, mbuf, mbuf_len);
0f113f3e 2816 /* We don't need to know any more */
7e1b7485
RS		 2817 if (!reconnect)
2818 starttls_proto = PROTO_OFF;
0f113f3e
MC		 2819 }
2820
2821 if (reconnect) {
2822 reconnect--;
2823 BIO_printf(bio_c_out,
2824 "drop connection and then reconnect\n");
ec447924 2825 do_ssl_shutdown(con);
0f113f3e 2826 SSL_set_connect_state(con);
8731a4fc 2827 BIO_closesocket(SSL_get_fd(con));
0f113f3e
MC		 2828 goto re_start;
2829 }
2830 }
2831 }
2832
fd068d50 2833 ssl_pending = read_ssl && SSL_has_pending(con);
0f113f3e
MC		 2834
2835 if (!ssl_pending) {
1fbab1dc 2836#if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS)
0f113f3e 2837 if (tty_on) {
a3ef2c16
JD		 2838 /*
2839 * Note that select() returns when read _would not block_,
2840 * and EOF satisfies that. To avoid a CPU-hogging loop,
2841 * set the flag so we exit.
2842 */
2843 if (read_tty && !at_eof)
51e5133d
RL		 2844 openssl_fdset(fileno_stdin(), &readfds);
2845#if !defined(OPENSSL_SYS_VMS)
0f113f3e 2846 if (write_tty)
51e5133d 2847 openssl_fdset(fileno_stdout(), &writefds);
0d3b6583 2848#endif
0f113f3e
MC		 2849 }
2850 if (read_ssl)
2851 openssl_fdset(SSL_get_fd(con), &readfds);
2852 if (write_ssl)
2853 openssl_fdset(SSL_get_fd(con), &writefds);
06f4536a 2854#else
0f113f3e
MC		 2855 if (!tty_on || !write_tty) {
2856 if (read_ssl)
2857 openssl_fdset(SSL_get_fd(con), &readfds);
2858 if (write_ssl)
2859 openssl_fdset(SSL_get_fd(con), &writefds);
2860 }
2861#endif
0f113f3e
MC		 2862
2863 /*
2864 * Note: under VMS with SOCKETSHR the second parameter is
2865 * currently of type (int *) whereas under other systems it is
2866 * (void *) if you don't have a cast it will choke the compiler:
2867 * if you do have a cast then you can either go for (int *) or
2868 * (void *).
2869 */
3d7c4a5a 2870#if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
0f113f3e
MC		 2871 /*
2872 * Under Windows/DOS we make the assumption that we can always
2873 * write to the tty: therefore if we need to write to the tty we
2874 * just fall through. Otherwise we timeout the select every
2875 * second and see if there are any keypresses. Note: this is a
2876 * hack, in a proper Windows application we wouldn't do this.
2877 */
2878 i = 0;
2879 if (!write_tty) {
2880 if (read_tty) {
2881 tv.tv_sec = 1;
2882 tv.tv_usec = 0;
2883 i = select(width, (void *)&readfds, (void *)&writefds,
2884 NULL, &tv);
75dd6c1a 2885 if (!i && (!has_stdin_waiting() || !read_tty))
0f113f3e 2886 continue;
0f113f3e
MC		 2887 } else
2888 i = select(width, (void *)&readfds, (void *)&writefds,
2889 NULL, timeoutp);
2890 }
06f4536a 2891#else
0f113f3e
MC		 2892 i = select(width, (void *)&readfds, (void *)&writefds,
2893 NULL, timeoutp);
2894#endif
2895 if (i < 0) {
2896 BIO_printf(bio_err, "bad select %d\n",
2897 get_last_socket_error());
2898 goto shut;
0f113f3e
MC		 2899 }
2900 }
2901
6f6da2fe 2902 if (SSL_is_dtls(con) && DTLSv1_handle_timeout(con) > 0)
0f113f3e 2903 BIO_printf(bio_err, "TIMEOUT occurred\n");
0f113f3e
MC		 2904
2905 if (!ssl_pending && FD_ISSET(SSL_get_fd(con), &writefds)) {
2906 k = SSL_write(con, &(cbuf[cbuf_off]), (unsigned int)cbuf_len);
2907 switch (SSL_get_error(con, k)) {
2908 case SSL_ERROR_NONE:
2909 cbuf_off += k;
2910 cbuf_len -= k;
2911 if (k <= 0)
2912 goto end;
2913 /* we have done a write(con,NULL,0); */
2914 if (cbuf_len <= 0) {
2915 read_tty = 1;
2916 write_ssl = 0;
2917 } else { /* if (cbuf_len > 0) */
2918
2919 read_tty = 0;
2920 write_ssl = 1;
2921 }
2922 break;
2923 case SSL_ERROR_WANT_WRITE:
2924 BIO_printf(bio_c_out, "write W BLOCK\n");
2925 write_ssl = 1;
2926 read_tty = 0;
2927 break;
7e25dd6d
MC		 2928 case SSL_ERROR_WANT_ASYNC:
2929 BIO_printf(bio_c_out, "write A BLOCK\n");
e1b9840e 2930 wait_for_async(con);
7e25dd6d
MC		 2931 write_ssl = 1;
2932 read_tty = 0;
2933 break;
0f113f3e
MC		 2934 case SSL_ERROR_WANT_READ:
2935 BIO_printf(bio_c_out, "write R BLOCK\n");
2936 write_tty = 0;
2937 read_ssl = 1;
2938 write_ssl = 0;
2939 break;
2940 case SSL_ERROR_WANT_X509_LOOKUP:
2941 BIO_printf(bio_c_out, "write X BLOCK\n");
2942 break;
2943 case SSL_ERROR_ZERO_RETURN:
2944 if (cbuf_len != 0) {
2945 BIO_printf(bio_c_out, "shutdown\n");
2946 ret = 0;
2947 goto shut;
2948 } else {
2949 read_tty = 1;
2950 write_ssl = 0;
2951 break;
2952 }
2953
2954 case SSL_ERROR_SYSCALL:
2955 if ((k != 0) || (cbuf_len != 0)) {
2956 BIO_printf(bio_err, "write:errno=%d\n",
2957 get_last_socket_error());
2958 goto shut;
2959 } else {
2960 read_tty = 1;
2961 write_ssl = 0;
2962 }
2963 break;
fc7f190c
MC		 2964 case SSL_ERROR_WANT_ASYNC_JOB:
2965 /* This shouldn't ever happen in s_client - treat as an error */
0f113f3e
MC		 2966 case SSL_ERROR_SSL:
2967 ERR_print_errors(bio_err);
2968 goto shut;
2969 }
2970 }
c7bdb6a3 2971#if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_VMS)
0f113f3e
MC		 2972 /* Assume Windows/DOS/BeOS can always write */
2973 else if (!ssl_pending && write_tty)
06f4536a 2974#else
51e5133d 2975 else if (!ssl_pending && FD_ISSET(fileno_stdout(), &writefds))
06f4536a 2976#endif
0f113f3e 2977 {
a53955d8 2978#ifdef CHARSET_EBCDIC
0f113f3e
MC		 2979 ascii2ebcdic(&(sbuf[sbuf_off]), &(sbuf[sbuf_off]), sbuf_len);
2980#endif
2981 i = raw_write_stdout(&(sbuf[sbuf_off]), sbuf_len);
2982
2983 if (i <= 0) {
2984 BIO_printf(bio_c_out, "DONE\n");
2985 ret = 0;
2986 goto shut;
0f113f3e
MC		 2987 }
2988
0fe2a0af 2989 sbuf_len -= i;
0f113f3e
MC		 2990 sbuf_off += i;
2991 if (sbuf_len <= 0) {
2992 read_ssl = 1;
2993 write_tty = 0;
2994 }
2995 } else if (ssl_pending || FD_ISSET(SSL_get_fd(con), &readfds)) {
58964a49 2996#ifdef RENEG
0f113f3e
MC		 2997 {
2998 static int iiii;
2999 if (++iiii == 52) {
3000 SSL_renegotiate(con);
3001 iiii = 0;
3002 }
3003 }
58964a49 3004#endif
0f113f3e 3005 k = SSL_read(con, sbuf, 1024 /* BUFSIZZ */ );
0f113f3e
MC		 3006
3007 switch (SSL_get_error(con, k)) {
3008 case SSL_ERROR_NONE:
3009 if (k <= 0)
3010 goto end;
3011 sbuf_off = 0;
3012 sbuf_len = k;
3013
3014 read_ssl = 0;
3015 write_tty = 1;
3016 break;
7e25dd6d
MC		 3017 case SSL_ERROR_WANT_ASYNC:
3018 BIO_printf(bio_c_out, "read A BLOCK\n");
e1b9840e 3019 wait_for_async(con);
7e25dd6d
MC		 3020 write_tty = 0;
3021 read_ssl = 1;
3022 if ((read_tty == 0) && (write_ssl == 0))
3023 write_ssl = 1;
3024 break;
0f113f3e
MC		 3025 case SSL_ERROR_WANT_WRITE:
3026 BIO_printf(bio_c_out, "read W BLOCK\n");
3027 write_ssl = 1;
3028 read_tty = 0;
3029 break;
3030 case SSL_ERROR_WANT_READ:
3031 BIO_printf(bio_c_out, "read R BLOCK\n");
3032 write_tty = 0;
3033 read_ssl = 1;
3034 if ((read_tty == 0) && (write_ssl == 0))
3035 write_ssl = 1;
3036 break;
3037 case SSL_ERROR_WANT_X509_LOOKUP:
3038 BIO_printf(bio_c_out, "read X BLOCK\n");
3039 break;
3040 case SSL_ERROR_SYSCALL:
3041 ret = get_last_socket_error();
3042 if (c_brief)
3043 BIO_puts(bio_err, "CONNECTION CLOSED BY SERVER\n");
3044 else
3045 BIO_printf(bio_err, "read:errno=%d\n", ret);
3046 goto shut;
3047 case SSL_ERROR_ZERO_RETURN:
3048 BIO_printf(bio_c_out, "closed\n");
3049 ret = 0;
3050 goto shut;
fc7f190c
MC		 3051 case SSL_ERROR_WANT_ASYNC_JOB:
3052 /* This shouldn't ever happen in s_client. Treat as an error */
0f113f3e
MC		 3053 case SSL_ERROR_SSL:
3054 ERR_print_errors(bio_err);
3055 goto shut;
0f113f3e
MC		 3056 }
3057 }
75dd6c1a
MC		 3058/* OPENSSL_SYS_MSDOS includes OPENSSL_SYS_WINDOWS */
3059#if defined(OPENSSL_SYS_MSDOS)
3060 else if (has_stdin_waiting())
06f4536a 3061#else
51e5133d 3062 else if (FD_ISSET(fileno_stdin(), &readfds))
0f113f3e
MC		 3063#endif
3064 {
3065 if (crlf) {
3066 int j, lf_num;
3067
3068 i = raw_read_stdin(cbuf, BUFSIZZ / 2);
3069 lf_num = 0;
3070 /* both loops are skipped when i <= 0 */
3071 for (j = 0; j < i; j++)
3072 if (cbuf[j] == '\n')
3073 lf_num++;
3074 for (j = i - 1; j >= 0; j--) {
3075 cbuf[j + lf_num] = cbuf[j];
3076 if (cbuf[j] == '\n') {
3077 lf_num--;
3078 i++;
3079 cbuf[j + lf_num] = '\r';
3080 }
3081 }
3082 assert(lf_num == 0);
51e5133d 3083 } else
c7bdb6a3 3084 i = raw_read_stdin(cbuf, BUFSIZZ);
d485640b 3085#if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS)
a3ef2c16
JD		 3086 if (i == 0)
3087 at_eof = 1;
d485640b 3088#endif
a3ef2c16 3089
6ba8a5b7 3090 if ((!c_ign_eof) && ((i <= 0) || (cbuf[0] == 'Q' && cmdletters))) {
0f113f3e
MC		 3091 BIO_printf(bio_err, "DONE\n");
3092 ret = 0;
3093 goto shut;
3094 }
3095
6ba8a5b7 3096 if ((!c_ign_eof) && (cbuf[0] == 'R' && cmdletters)) {
0f113f3e
MC		 3097 BIO_printf(bio_err, "RENEGOTIATING\n");
3098 SSL_renegotiate(con);
3099 cbuf_len = 0;
dd6b2706 3100 } else if (!c_ign_eof && (cbuf[0] == 'K' || cbuf[0] == 'k' )
f14afcaa 3101 && cmdletters) {
b07b2a1b
MC		 3102 BIO_printf(bio_err, "KEYUPDATE\n");
3103 SSL_key_update(con,
3104 cbuf[0] == 'K' ? SSL_KEY_UPDATE_REQUESTED
3105 : SSL_KEY_UPDATE_NOT_REQUESTED);
3106 cbuf_len = 0;
558ea847 3107 } else {
0f113f3e
MC		 3108 cbuf_len = i;
3109 cbuf_off = 0;
a53955d8 3110#ifdef CHARSET_EBCDIC
0f113f3e
MC		 3111 ebcdic2ascii(cbuf, cbuf, i);
3112#endif
3113 }
3114
3115 write_ssl = 1;
3116 read_tty = 0;
3117 }
3118 }
3119
3120 ret = 0;
3121 shut:
3122 if (in_init)
0d4d5ab8 3123 print_stuff(bio_c_out, con, full_log);
ec447924 3124 do_ssl_shutdown(con);
27da42d8 3125
26ec943e
BE		 3126 /*
3127 * If we ended with an alert being sent, but still with data in the
3128 * network buffer to be read, then calling BIO_closesocket() will
3129 * result in a TCP-RST being sent. On some platforms (notably
3130 * Windows) then this will result in the peer immediately abandoning
3131 * the connection including any buffered alert data before it has
3132 * had a chance to be read. Shutting down the sending side first,
3133 * and then closing the socket sends TCP-FIN first followed by
3134 * TCP-RST. This seems to allow the peer to read the alert data.
3135 */
3136 shutdown(SSL_get_fd(con), 1); /* SHUT_WR */
f69d050e
AP		 3137 /*
3138 * We just said we have nothing else to say, but it doesn't mean that
3139 * the other side has nothing. It's even recommended to consume incoming
3140 * data. [In testing context this ensures that alerts are passed on...]
3141 */
3142 timeout.tv_sec = 0;
3143 timeout.tv_usec = 500000; /* some extreme round-trip */
3144 do {
3145 FD_ZERO(&readfds);
29f178bd
DDO		 3146 openssl_fdset(sock, &readfds);
3147 } while (select(sock + 1, &readfds, NULL, NULL, &timeout) > 0
f69d050e
AP		 3148 && BIO_read(sbio, sbuf, BUFSIZZ) > 0);
3149
8731a4fc 3150 BIO_closesocket(SSL_get_fd(con));
0f113f3e
MC		 3151 end:
3152 if (con != NULL) {
3153 if (prexit != 0)
0d4d5ab8 3154 print_stuff(bio_c_out, con, 1);
0f113f3e
MC		 3155 SSL_free(con);
3156 }
9561e2a1 3157 SSL_SESSION_free(psksess);
e481f9b9 3158#if !defined(OPENSSL_NO_NEXTPROTONEG)
b548a1f1 3159 OPENSSL_free(next_proto.data);
0f113f3e 3160#endif
62adbcee 3161 SSL_CTX_free(ctx);
4bf73e9f 3162 set_keylog_file(NULL, NULL);
222561fe 3163 X509_free(cert);
4b45c6e5 3164 sk_X509_CRL_pop_free(crls, X509_CRL_free);
c5ba2d99 3165 EVP_PKEY_free(key);
222561fe 3166 sk_X509_pop_free(chain, X509_free);
b548a1f1 3167 OPENSSL_free(pass);
d40a1f72
DSH		 3168#ifndef OPENSSL_NO_SRP
3169 OPENSSL_free(srp_arg.srppassin);
3170#endif
eb67172a 3171 OPENSSL_free(connectstr);
ebc01683 3172 OPENSSL_free(bindstr);
ab69ac00
RL		 3173 OPENSSL_free(host);
3174 OPENSSL_free(port);
f7201301
M		 3175 OPENSSL_free(thost);
3176 OPENSSL_free(tport);
222561fe 3177 X509_VERIFY_PARAM_free(vpm);
0f113f3e 3178 ssl_excert_free(exc);
7e1b7485 3179 sk_OPENSSL_STRING_free(ssl_args);
cddd424a 3180 sk_OPENSSL_STRING_free(dane_tlsa_rrset);
62adbcee 3181 SSL_CONF_CTX_free(cctx);
4b45c6e5
RS		 3182 OPENSSL_clear_free(cbuf, BUFSIZZ);
3183 OPENSSL_clear_free(sbuf, BUFSIZZ);
3184 OPENSSL_clear_free(mbuf, BUFSIZZ);
6d382c74 3185 clear_free(proxypass);
dd1abd44 3186 release_engine(e);
ca3a82c3
RS		 3187 BIO_free(bio_c_out);
3188 bio_c_out = NULL;
3189 BIO_free(bio_c_msg);
3190 bio_c_msg = NULL;
26a7d938 3191 return ret;
0f113f3e 3192}
d02b48c6 3193
0d4d5ab8 3194static void print_stuff(BIO *bio, SSL *s, int full)
0f113f3e
MC		 3195{
3196 X509 *peer = NULL;
0f113f3e 3197 STACK_OF(X509) *sk;
0f113f3e 3198 const SSL_CIPHER *c;
2f84d2a1 3199 EVP_PKEY *public_key;
20c0bce5
MC		 3200 int i, istls13 = (SSL_version(s) == TLS1_3_VERSION);
3201 long verify_result;
09b6c2ef 3202#ifndef OPENSSL_NO_COMP
0f113f3e
MC		 3203 const COMP_METHOD *comp, *expansion;
3204#endif
3205 unsigned char *exportedkeymat;
dd696a55 3206#ifndef OPENSSL_NO_CT
0d4d5ab8 3207 const SSL_CTX *ctx = SSL_get_SSL_CTX(s);
b5369582 3208#endif
0f113f3e
MC		 3209
3210 if (full) {
3211 int got_a_chain = 0;
3212
3213 sk = SSL_get_peer_cert_chain(s);
3214 if (sk != NULL) {
7e1b7485 3215 got_a_chain = 1;
0f113f3e
MC		 3216
3217 BIO_printf(bio, "---\nCertificate chain\n");
3218 for (i = 0; i < sk_X509_num(sk); i++) {
b5c4209b
DB		 3219 BIO_printf(bio, "%2d s:", i);
3220 X509_NAME_print_ex(bio, X509_get_subject_name(sk_X509_value(sk, i)), 0, get_nameopt());
3221 BIO_puts(bio, "\n");
3222 BIO_printf(bio, " i:");
3223 X509_NAME_print_ex(bio, X509_get_issuer_name(sk_X509_value(sk, i)), 0, get_nameopt());
3224 BIO_puts(bio, "\n");
2f84d2a1
M		 3225 public_key = X509_get_pubkey(sk_X509_value(sk, i));
3226 if (public_key != NULL) {
3227 BIO_printf(bio, " a:PKEY: %s, %d (bit); sigalg: %s\n",
3228 OBJ_nid2sn(EVP_PKEY_base_id(public_key)),
3229 EVP_PKEY_bits(public_key),
3230 OBJ_nid2sn(X509_get_signature_nid(sk_X509_value(sk, i))));
3231 EVP_PKEY_free(public_key);
3232 }
3233 BIO_printf(bio, " v:NotBefore: ");
c0ec5ce0 3234 ASN1_TIME_print(bio, X509_get0_notBefore(sk_X509_value(sk, i)));
2f84d2a1 3235 BIO_printf(bio, "; NotAfter: ");
c0ec5ce0 3236 ASN1_TIME_print(bio, X509_get0_notAfter(sk_X509_value(sk, i)));
2f84d2a1 3237 BIO_puts(bio, "\n");
0f113f3e
MC		 3238 if (c_showcerts)
3239 PEM_write_bio_X509(bio, sk_X509_value(sk, i));
3240 }
3241 }
3242
3243 BIO_printf(bio, "---\n");
8c2bfd25 3244 peer = SSL_get0_peer_certificate(s);
0f113f3e
MC		 3245 if (peer != NULL) {
3246 BIO_printf(bio, "Server certificate\n");
3247
3248 /* Redundant if we showed the whole chain */
3249 if (!(c_showcerts && got_a_chain))
3250 PEM_write_bio_X509(bio, peer);
b5c4209b 3251 dump_cert_text(bio, peer);
0f113f3e 3252 } else {
5969a2dd 3253 BIO_printf(bio, "no peer certificate available\n");
0f113f3e 3254 }
5969a2dd 3255 print_ca_names(bio, s);
0f113f3e
MC		 3256
3257 ssl_print_sigalgs(bio, s);
3258 ssl_print_tmp_key(bio, s);
3259
dd696a55 3260#ifndef OPENSSL_NO_CT
43341433
VD		 3261 /*
3262 * When the SSL session is anonymous, or resumed via an abbreviated
3263 * handshake, no SCTs are provided as part of the handshake. While in
3264 * a resumed session SCTs may be present in the session's certificate,
3265 * no callbacks are invoked to revalidate these, and in any case that
3266 * set of SCTs may be incomplete. Thus it makes little sense to
3267 * attempt to display SCTs from a resumed session's certificate, and of
3268 * course none are associated with an anonymous peer.
3269 */
3270 if (peer != NULL && !SSL_session_reused(s) && SSL_ct_is_enabled(s)) {
3271 const STACK_OF(SCT) *scts = SSL_get0_peer_scts(s);
3272 int sct_count = scts != NULL ? sk_SCT_num(scts) : 0;
3273
3274 BIO_printf(bio, "---\nSCTs present (%i)\n", sct_count);
3275 if (sct_count > 0) {
3276 const CTLOG_STORE *log_store = SSL_CTX_get0_ctlog_store(ctx);
3277
3278 BIO_printf(bio, "---\n");
3279 for (i = 0; i < sct_count; ++i) {
3280 SCT *sct = sk_SCT_value(scts, i);
3281
3282 BIO_printf(bio, "SCT validation status: %s\n",
3283 SCT_validation_status_string(sct));
3284 SCT_print(sct, bio, 0, log_store);
3285 if (i < sct_count - 1)
3286 BIO_printf(bio, "\n---\n");
3287 }
3288 BIO_printf(bio, "\n");
3289 }
6bea2a72 3290 }
dd696a55
RP		 3291#endif
3292
0f113f3e 3293 BIO_printf(bio,
7d672984
AP		 3294 "---\nSSL handshake has read %ju bytes "
3295 "and written %ju bytes\n",
12997aa9
RS		 3296 BIO_number_read(SSL_get_rbio(s)),
3297 BIO_number_written(SSL_get_wbio(s)));
0f113f3e 3298 }
c0a445a9 3299 print_verify_detail(s, bio);
b577fd0b 3300 BIO_printf(bio, (SSL_session_reused(s) ? "---\nReused, " : "---\nNew, "));
0f113f3e
MC		 3301 c = SSL_get_current_cipher(s);
3302 BIO_printf(bio, "%s, Cipher is %s\n",
3303 SSL_CIPHER_get_version(c), SSL_CIPHER_get_name(c));
3304 if (peer != NULL) {
3305 EVP_PKEY *pktmp;
bde136c8 3306
c01ff880 3307 pktmp = X509_get0_pubkey(peer);
0f113f3e
MC		 3308 BIO_printf(bio, "Server public key is %d bit\n",
3309 EVP_PKEY_bits(pktmp));
0f113f3e
MC		 3310 }
3311 BIO_printf(bio, "Secure Renegotiation IS%s supported\n",
3312 SSL_get_secure_renegotiation_support(s) ? "" : " NOT");
09b6c2ef 3313#ifndef OPENSSL_NO_COMP
0f113f3e
MC		 3314 comp = SSL_get_current_compression(s);
3315 expansion = SSL_get_current_expansion(s);
3316 BIO_printf(bio, "Compression: %s\n",
3317 comp ? SSL_COMP_get_name(comp) : "NONE");
3318 BIO_printf(bio, "Expansion: %s\n",
3319 expansion ? SSL_COMP_get_name(expansion) : "NONE");
3320#endif
d6c3c189
BP		 3321#ifndef OPENSSL_NO_KTLS
3322 if (BIO_get_ktls_send(SSL_get_wbio(s)))
3323 BIO_printf(bio_err, "Using Kernel TLS for sending\n");
005080aa
BP		 3324 if (BIO_get_ktls_recv(SSL_get_rbio(s)))
3325 BIO_printf(bio_err, "Using Kernel TLS for receiving\n");
d6c3c189 3326#endif
0f113f3e 3327
49b26f54 3328 if (OSSL_TRACE_ENABLED(TLS)) {
0f113f3e
MC		 3329 /* Print out local port of connection: useful for debugging */
3330 int sock;
642a166c
RL		 3331 union BIO_sock_info_u info;
3332
0f113f3e 3333 sock = SSL_get_fd(s);
642a166c
RL		 3334 if ((info.addr = BIO_ADDR_new()) != NULL
3335 && BIO_sock_info(sock, BIO_SOCK_INFO_ADDRESS, &info)) {
3336 BIO_printf(bio_c_out, "LOCAL PORT is %u\n",
1abd2925 3337 ntohs(BIO_ADDR_rawport(info.addr)));
642a166c
RL		 3338 }
3339 BIO_ADDR_free(info.addr);
0f113f3e 3340 }
a2f9200f 3341
e481f9b9 3342#if !defined(OPENSSL_NO_NEXTPROTONEG)
0f113f3e
MC		 3343 if (next_proto.status != -1) {
3344 const unsigned char *proto;
3345 unsigned int proto_len;
3346 SSL_get0_next_proto_negotiated(s, &proto, &proto_len);
3347 BIO_printf(bio, "Next protocol: (%d) ", next_proto.status);
3348 BIO_write(bio, proto, proto_len);
3349 BIO_write(bio, "\n", 1);
3350 }
e481f9b9 3351#endif
0f113f3e
MC		 3352 {
3353 const unsigned char *proto;
3354 unsigned int proto_len;
3355 SSL_get0_alpn_selected(s, &proto, &proto_len);
3356 if (proto_len > 0) {
3357 BIO_printf(bio, "ALPN protocol: ");
3358 BIO_write(bio, proto, proto_len);
3359 BIO_write(bio, "\n", 1);
3360 } else
3361 BIO_printf(bio, "No ALPN negotiated\n");
3362 }
71fa4513 3363
e783bae2 3364#ifndef OPENSSL_NO_SRTP
0f113f3e
MC		 3365 {
3366 SRTP_PROTECTION_PROFILE *srtp_profile =
3367 SSL_get_selected_srtp_profile(s);
3368
3369 if (srtp_profile)
3370 BIO_printf(bio, "SRTP Extension negotiated, profile=%s\n",
3371 srtp_profile->name);
3372 }
3373#endif
3374
20c0bce5 3375 if (istls13) {
576eb395
MC		 3376 switch (SSL_get_early_data_status(s)) {
3377 case SSL_EARLY_DATA_NOT_SENT:
3378 BIO_printf(bio, "Early data was not sent\n");
3379 break;
3380
3381 case SSL_EARLY_DATA_REJECTED:
3382 BIO_printf(bio, "Early data was rejected\n");
3383 break;
3384
3385 case SSL_EARLY_DATA_ACCEPTED:
3386 BIO_printf(bio, "Early data was accepted\n");
3387 break;
3388
3389 }
20c0bce5
MC		 3390
3391 /*
3392 * We also print the verify results when we dump session information,
3393 * but in TLSv1.3 we may not get that right away (or at all) depending
3394 * on when we get a NewSessionTicket. Therefore we print it now as well.
3395 */
3396 verify_result = SSL_get_verify_result(s);
3397 BIO_printf(bio, "Verify return code: %ld (%s)\n", verify_result,
3398 X509_verify_cert_error_string(verify_result));
3399 } else {
3400 /* In TLSv1.3 we do this on arrival of a NewSessionTicket */
3401 SSL_SESSION_print(bio, SSL_get_session(s));
576eb395
MC		 3402 }
3403
d6073e27 3404 if (SSL_get_session(s) != NULL && keymatexportlabel != NULL) {
0f113f3e
MC		 3405 BIO_printf(bio, "Keying material exporter:\n");
3406 BIO_printf(bio, " Label: '%s'\n", keymatexportlabel);
3407 BIO_printf(bio, " Length: %i bytes\n", keymatexportlen);
68dc6824
RS		 3408 exportedkeymat = app_malloc(keymatexportlen, "export key");
3409 if (!SSL_export_keying_material(s, exportedkeymat,
3410 keymatexportlen,
3411 keymatexportlabel,
3412 strlen(keymatexportlabel),
3413 NULL, 0, 0)) {
3414 BIO_printf(bio, " Error\n");
3415 } else {
3416 BIO_printf(bio, " Keying material: ");
3417 for (i = 0; i < keymatexportlen; i++)
3418 BIO_printf(bio, "%02X", exportedkeymat[i]);
3419 BIO_printf(bio, "\n");
0f113f3e 3420 }
68dc6824 3421 OPENSSL_free(exportedkeymat);
0f113f3e
MC		 3422 }
3423 BIO_printf(bio, "---\n");
0f113f3e
MC		 3424 /* flush, or debugging output gets mixed with http response */
3425 (void)BIO_flush(bio);
3426}
d02b48c6 3427
3e41ac35 3428# ifndef OPENSSL_NO_OCSP
67c8e7f4 3429static int ocsp_resp_cb(SSL *s, void *arg)
0f113f3e
MC		 3430{
3431 const unsigned char *p;
3432 int len;
3433 OCSP_RESPONSE *rsp;
3434 len = SSL_get_tlsext_status_ocsp_resp(s, &p);
3435 BIO_puts(arg, "OCSP response: ");
2234212c 3436 if (p == NULL) {
0f113f3e
MC		 3437 BIO_puts(arg, "no response sent\n");
3438 return 1;
3439 }
3440 rsp = d2i_OCSP_RESPONSE(NULL, &p, len);
2234212c 3441 if (rsp == NULL) {
0f113f3e
MC		 3442 BIO_puts(arg, "response parse error\n");
3443 BIO_dump_indent(arg, (char *)p, len, 4);
3444 return 0;
3445 }
3446 BIO_puts(arg, "\n======================================\n");
3447 OCSP_RESPONSE_print(arg, rsp, 0);
3448 BIO_puts(arg, "======================================\n");
3449 OCSP_RESPONSE_free(rsp);
3450 return 1;
3451}
3e41ac35 3452# endif
f9e55034 3453
398b0bbd
RS		 3454static int ldap_ExtendedResponse_parse(const char *buf, long rem)
3455{
3456 const unsigned char *cur, *end;
3457 long len;
3458 int tag, xclass, inf, ret = -1;
3459
3460 cur = (const unsigned char *)buf;
3461 end = cur + rem;
3462
3463 /*
3464 * From RFC 4511:
3465 *
3466 * LDAPMessage ::= SEQUENCE {
3467 * messageID MessageID,
3468 * protocolOp CHOICE {
3469 * ...
3470 * extendedResp ExtendedResponse,
3471 * ... },
3472 * controls [0] Controls OPTIONAL }
3473 *
3474 * ExtendedResponse ::= [APPLICATION 24] SEQUENCE {
3475 * COMPONENTS OF LDAPResult,
3476 * responseName [10] LDAPOID OPTIONAL,
3477 * responseValue [11] OCTET STRING OPTIONAL }
3478 *
3479 * LDAPResult ::= SEQUENCE {
3480 * resultCode ENUMERATED {
3481 * success (0),
3482 * ...
3483 * other (80),
3484 * ... },
3485 * matchedDN LDAPDN,
3486 * diagnosticMessage LDAPString,
3487 * referral [3] Referral OPTIONAL }
3488 */
3489
3490 /* pull SEQUENCE */
3491 inf = ASN1_get_object(&cur, &len, &tag, &xclass, rem);
3492 if (inf != V_ASN1_CONSTRUCTED || tag != V_ASN1_SEQUENCE ||
3493 (rem = end - cur, len > rem)) {
3494 BIO_printf(bio_err, "Unexpected LDAP response\n");
3495 goto end;
3496 }
3497
8b0d4242
AP		 3498 rem = len; /* ensure that we don't overstep the SEQUENCE */
3499
398b0bbd
RS		 3500 /* pull MessageID */
3501 inf = ASN1_get_object(&cur, &len, &tag, &xclass, rem);
3502 if (inf != V_ASN1_UNIVERSAL || tag != V_ASN1_INTEGER ||
3503 (rem = end - cur, len > rem)) {
3504 BIO_printf(bio_err, "No MessageID\n");
3505 goto end;
3506 }
3507
3508 cur += len; /* shall we check for MessageId match or just skip? */
3509
3510 /* pull [APPLICATION 24] */
3511 rem = end - cur;
3512 inf = ASN1_get_object(&cur, &len, &tag, &xclass, rem);
3513 if (inf != V_ASN1_CONSTRUCTED || xclass != V_ASN1_APPLICATION ||
3514 tag != 24) {
3515 BIO_printf(bio_err, "Not ExtendedResponse\n");
3516 goto end;
3517 }
3518
3519 /* pull resultCode */
3520 rem = end - cur;
3521 inf = ASN1_get_object(&cur, &len, &tag, &xclass, rem);
3522 if (inf != V_ASN1_UNIVERSAL || tag != V_ASN1_ENUMERATED || len == 0 ||
3523 (rem = end - cur, len > rem)) {
3524 BIO_printf(bio_err, "Not LDAPResult\n");
3525 goto end;
3526 }
3527
3528 /* len should always be one, but just in case... */
3529 for (ret = 0, inf = 0; inf < len; inf++) {
3530 ret <<= 8;
3531 ret |= cur[inf];
3532 }
3533 /* There is more data, but we don't care... */
3534 end:
3535 return ret;
3536}
3537
8e981051 3538/*
4bd8b240 3539 * Host dNS Name verifier: used for checking that the hostname is in dNS format
8e981051
IM		 3540 * before setting it as SNI
3541 */
3542static int is_dNS_name(const char *host)
3543{
3544 const size_t MAX_LABEL_LENGTH = 63;
3545 size_t i;
3546 int isdnsname = 0;
3547 size_t length = strlen(host);
3548 size_t label_length = 0;
3549 int all_numeric = 1;
3550
3551 /*
3552 * Deviation from strict DNS name syntax, also check names with '_'
3553 * Check DNS name syntax, any '-' or '.' must be internal,
3554 * and on either side of each '.' we can't have a '-' or '.'.
3555 *
3556 * If the name has just one label, we don't consider it a DNS name.
3557 */
3558 for (i = 0; i < length && label_length < MAX_LABEL_LENGTH; ++i) {
3559 char c = host[i];
3560
3561 if ((c >= 'a' && c <= 'z')
3562 || (c >= 'A' && c <= 'Z')
3563 || c == '_') {
3564 label_length += 1;
3565 all_numeric = 0;
3566 continue;
3567 }
3568
3569 if (c >= '0' && c <= '9') {
3570 label_length += 1;
3571 continue;
3572 }
3573
3574 /* Dot and hyphen cannot be first or last. */
3575 if (i > 0 && i < length - 1) {
3576 if (c == '-') {
3577 label_length += 1;
3578 continue;
3579 }
3580 /*
3581 * Next to a dot the preceding and following characters must not be
3582 * another dot or a hyphen. Otherwise, record that the name is
3583 * plausible, since it has two or more labels.
3584 */
3585 if (c == '.'
3586 && host[i + 1] != '.'
3587 && host[i - 1] != '-'
3588 && host[i + 1] != '-') {
3589 label_length = 0;
3590 isdnsname = 1;
3591 continue;
3592 }
3593 }
3594 isdnsname = 0;
3595 break;
3596 }
3597
3598 /* dNS name must not be all numeric and labels must be shorter than 64 characters. */
3599 isdnsname &= !all_numeric && !(label_length == MAX_LABEL_LENGTH);
3600
3601 return isdnsname;
3602}
d6073e27 3603#endif /* OPENSSL_NO_SOCK */
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