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Check getauxval on systems that have it when checking for setuid execution.
[thirdparty/openssl.git] / apps / s_client.c
CommitLineData
846e33c7 1/*
48e5119a 2 * Copyright 1995-2018 The OpenSSL Project Authors. All Rights Reserved.
c80149d9 3 * Copyright 2005 Nokia. All rights reserved.
a661b653 4 *
846e33c7
RS		 5 * Licensed under the OpenSSL license (the "License"). You may not use
6 * this file except in compliance with the License. You can obtain a copy
7 * in the file LICENSE in the source distribution or at
8 * https://www.openssl.org/source/license.html
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>
5e6f9775 41#include <openssl/async.h>
edc032b5 42#ifndef OPENSSL_NO_SRP
0f113f3e 43# include <openssl/srp.h>
edc032b5 44#endif
dd696a55
RP		 45#ifndef OPENSSL_NO_CT
46# include <openssl/ct.h>
47#endif
d02b48c6 48#include "s_apps.h"
36d16f8e 49#include "timeouts.h"
0e97f1e1 50#include "internal/sockets.h"
d02b48c6 51
efc943be
EK		 52#if defined(__has_feature)
53# if __has_feature(memory_sanitizer)
54# include <sanitizer/msan_interface.h>
55# endif
56#endif
57
d02b48c6
RE		 58#undef BUFSIZZ
59#define BUFSIZZ 1024*8
cfb4f1ef 60#define S_CLIENT_IRC_READ_TIMEOUT 8
d02b48c6 61
cddd424a 62static char *prog;
7e1b7485 63static int c_debug = 0;
0f113f3e 64static int c_showcerts = 0;
0f113f3e
MC		 65static char *keymatexportlabel = NULL;
66static int keymatexportlen = 20;
0f113f3e 67static BIO *bio_c_out = NULL;
0f113f3e 68static int c_quiet = 0;
be62b22b 69static char *sess_out = NULL;
e261bdd1 70static SSL_SESSION *psksess = NULL;
d02b48c6 71
0d4d5ab8 72static void print_stuff(BIO *berr, SSL *con, int full);
3e41ac35 73#ifndef OPENSSL_NO_OCSP
7e1b7485 74static int ocsp_resp_cb(SSL *s, void *arg);
3e41ac35 75#endif
398b0bbd 76static int ldap_ExtendedResponse_parse(const char *buf, long rem);
7e1b7485 77
cddd424a
VD		 78static int saved_errno;
79
80static void save_errno(void)
81{
82 saved_errno = errno;
83 errno = 0;
84}
85
86static int restore_errno(void)
87{
88 int ret = errno;
89 errno = saved_errno;
90 return ret;
91}
92
ec447924
MC		 93static void do_ssl_shutdown(SSL *ssl)
94{
95 int ret;
96
97 do {
98 /* We only do unidirectional shutdown */
99 ret = SSL_shutdown(ssl);
100 if (ret < 0) {
101 switch (SSL_get_error(ssl, ret)) {
102 case SSL_ERROR_WANT_READ:
103 case SSL_ERROR_WANT_WRITE:
104 case SSL_ERROR_WANT_ASYNC:
fc7f190c 105 case SSL_ERROR_WANT_ASYNC_JOB:
ec447924
MC		 106 /* We just do busy waiting. Nothing clever */
107 continue;
108 }
109 ret = 0;
110 }
111 } while (ret < 0);
112}
113
ddac1974 114/* Default PSK identity and key */
0f113f3e 115static char *psk_identity = "Client_identity";
ddac1974 116
14e35350 117#ifndef OPENSSL_NO_PSK
ddac1974 118static unsigned int psk_client_cb(SSL *ssl, const char *hint, char *identity,
0f113f3e
MC		 119 unsigned int max_identity_len,
120 unsigned char *psk,
121 unsigned int max_psk_len)
122{
0f113f3e 123 int ret;
6ec6d520
DSH		 124 long key_len;
125 unsigned char *key;
0f113f3e
MC		 126
127 if (c_debug)
128 BIO_printf(bio_c_out, "psk_client_cb\n");
129 if (!hint) {
130 /* no ServerKeyExchange message */
131 if (c_debug)
132 BIO_printf(bio_c_out,
133 "NULL received PSK identity hint, continuing anyway\n");
2234212c 134 } else if (c_debug) {
0f113f3e 135 BIO_printf(bio_c_out, "Received PSK identity hint '%s'\n", hint);
2234212c 136 }
0f113f3e
MC		 137
138 /*
139 * lookup PSK identity and PSK key based on the given identity hint here
140 */
141 ret = BIO_snprintf(identity, max_identity_len, "%s", psk_identity);
142 if (ret < 0 || (unsigned int)ret > max_identity_len)
143 goto out_err;
144 if (c_debug)
145 BIO_printf(bio_c_out, "created identity '%s' len=%d\n", identity,
146 ret);
6ec6d520
DSH		 147
148 /* convert the PSK key to binary */
149 key = OPENSSL_hexstr2buf(psk_key, &key_len);
150 if (key == NULL) {
151 BIO_printf(bio_err, "Could not convert PSK key '%s' to buffer\n",
0f113f3e 152 psk_key);
0f113f3e
MC		 153 return 0;
154 }
96a5d7fd 155 if (max_psk_len > INT_MAX || key_len > (long)max_psk_len) {
0f113f3e 156 BIO_printf(bio_err,
6ec6d520
DSH		 157 "psk buffer of callback is too small (%d) for key (%ld)\n",
158 max_psk_len, key_len);
159 OPENSSL_free(key);
0f113f3e
MC		 160 return 0;
161 }
ddac1974 162
6ec6d520
DSH		 163 memcpy(psk, key, key_len);
164 OPENSSL_free(key);
ddac1974 165
0f113f3e 166 if (c_debug)
6ec6d520 167 BIO_printf(bio_c_out, "created PSK len=%ld\n", key_len);
0f113f3e 168
6ec6d520 169 return key_len;
ddac1974 170 out_err:
0f113f3e
MC		 171 if (c_debug)
172 BIO_printf(bio_err, "Error in PSK client callback\n");
173 return 0;
174}
ddac1974
NL		 175#endif
176
adfc3786
MC		 177const unsigned char tls13_aes128gcmsha256_id[] = { 0x13, 0x01 };
178const unsigned char tls13_aes256gcmsha384_id[] = { 0x13, 0x02 };
5ffff599 179
e261bdd1
MC		 180static int psk_use_session_cb(SSL *s, const EVP_MD *md,
181 const unsigned char **id, size_t *idlen,
182 SSL_SESSION **sess)
183{
5ffff599
MC		 184 SSL_SESSION *usesess = NULL;
185 const SSL_CIPHER *cipher = NULL;
186
187 if (psksess != NULL) {
188 SSL_SESSION_up_ref(psksess);
189 usesess = psksess;
190 } else {
191 long key_len;
192 unsigned char *key = OPENSSL_hexstr2buf(psk_key, &key_len);
193
194 if (key == NULL) {
195 BIO_printf(bio_err, "Could not convert PSK key '%s' to buffer\n",
196 psk_key);
197 return 0;
198 }
199
e73c6eae
MC		 200 /* We default to SHA-256 */
201 cipher = SSL_CIPHER_find(s, tls13_aes128gcmsha256_id);
5ffff599 202 if (cipher == NULL) {
e73c6eae 203 BIO_printf(bio_err, "Error finding suitable ciphersuite\n");
bdd5f12e 204 OPENSSL_free(key);
e73c6eae 205 return 0;
5ffff599 206 }
e73c6eae 207
5ffff599
MC		 208 usesess = SSL_SESSION_new();
209 if (usesess == NULL
210 || !SSL_SESSION_set1_master_key(usesess, key, key_len)
211 || !SSL_SESSION_set_cipher(usesess, cipher)
212 || !SSL_SESSION_set_protocol_version(usesess, TLS1_3_VERSION)) {
213 OPENSSL_free(key);
214 goto err;
215 }
216 OPENSSL_free(key);
217 }
218
219 cipher = SSL_SESSION_get0_cipher(usesess);
e261bdd1 220 if (cipher == NULL)
5ffff599 221 goto err;
e261bdd1 222
dc87d5a9
MC		 223 if (md != NULL && SSL_CIPHER_get_handshake_digest(cipher) != md) {
224 /* PSK not usable, ignore it */
225 *id = NULL;
226 *idlen = 0;
227 *sess = NULL;
228 SSL_SESSION_free(usesess);
229 } else {
230 *sess = usesess;
231 *id = (unsigned char *)psk_identity;
232 *idlen = strlen(psk_identity);
233 }
e261bdd1
MC		 234
235 return 1;
5ffff599
MC		 236
237 err:
238 SSL_SESSION_free(usesess);
239 return 0;
e261bdd1
MC		 240}
241
ed3883d2
BM		 242/* This is a context that we pass to callbacks */
243typedef struct tlsextctx_st {
0f113f3e
MC		 244 BIO *biodebug;
245 int ack;
ed3883d2
BM		 246} tlsextctx;
247
6d23cf97 248static int ssl_servername_cb(SSL *s, int *ad, void *arg)
0f113f3e
MC		 249{
250 tlsextctx *p = (tlsextctx *) arg;
251 const char *hn = SSL_get_servername(s, TLSEXT_NAMETYPE_host_name);
252 if (SSL_get_servername_type(s) != -1)
253 p->ack = !SSL_session_reused(s) && hn != NULL;
254 else
255 BIO_printf(bio_err, "Can't use SSL_get_servername\n");
256
257 return SSL_TLSEXT_ERR_OK;
258}
ee2ffc27 259
e481f9b9 260#ifndef OPENSSL_NO_SRP
edc032b5
BL		 261
262/* This is a context that we pass to all callbacks */
0f113f3e
MC		 263typedef struct srp_arg_st {
264 char *srppassin;
265 char *srplogin;
266 int msg; /* copy from c_msg */
267 int debug; /* copy from c_debug */
268 int amp; /* allow more groups */
bde136c8 269 int strength; /* minimal size for N */
0f113f3e
MC		 270} SRP_ARG;
271
e481f9b9 272# define SRP_NUMBER_ITERATIONS_FOR_PRIME 64
edc032b5 273
f2fc3075 274static int srp_Verify_N_and_g(const BIGNUM *N, const BIGNUM *g)
0f113f3e
MC		 275{
276 BN_CTX *bn_ctx = BN_CTX_new();
277 BIGNUM *p = BN_new();
278 BIGNUM *r = BN_new();
279 int ret =
280 g != NULL && N != NULL && bn_ctx != NULL && BN_is_odd(N) &&
748e8530 281 BN_is_prime_ex(N, SRP_NUMBER_ITERATIONS_FOR_PRIME, bn_ctx, NULL) == 1 &&
0f113f3e
MC		 282 p != NULL && BN_rshift1(p, N) &&
283 /* p = (N-1)/2 */
748e8530 284 BN_is_prime_ex(p, SRP_NUMBER_ITERATIONS_FOR_PRIME, bn_ctx, NULL) == 1 &&
0f113f3e
MC		 285 r != NULL &&
286 /* verify g^((N-1)/2) == -1 (mod N) */
287 BN_mod_exp(r, g, p, N, bn_ctx) &&
288 BN_add_word(r, 1) && BN_cmp(r, N) == 0;
289
23a1d5e9
RS		 290 BN_free(r);
291 BN_free(p);
292 BN_CTX_free(bn_ctx);
0f113f3e
MC		 293 return ret;
294}
edc032b5 295
c80fd6b2
MC		 296/*-
297 * This callback is used here for two purposes:
298 * - extended debugging
299 * - making some primality tests for unknown groups
300 * The callback is only called for a non default group.
301 *
302 * An application does not need the call back at all if
bde136c8 303 * only the standard groups are used. In real life situations,
0f113f3e
MC		 304 * client and server already share well known groups,
305 * thus there is no need to verify them.
c80fd6b2 306 * Furthermore, in case that a server actually proposes a group that
0f113f3e
MC		 307 * is not one of those defined in RFC 5054, it is more appropriate
308 * to add the group to a static list and then compare since
c80fd6b2
MC		 309 * primality tests are rather cpu consuming.
310 */
f2fc3075 311
6d23cf97 312static int ssl_srp_verify_param_cb(SSL *s, void *arg)
0f113f3e
MC		 313{
314 SRP_ARG *srp_arg = (SRP_ARG *)arg;
315 BIGNUM *N = NULL, *g = NULL;
75ebbd9a
RS		 316
317 if (((N = SSL_get_srp_N(s)) == NULL) || ((g = SSL_get_srp_g(s)) == NULL))
0f113f3e
MC		 318 return 0;
319 if (srp_arg->debug || srp_arg->msg || srp_arg->amp == 1) {
320 BIO_printf(bio_err, "SRP parameters:\n");
321 BIO_printf(bio_err, "\tN=");
322 BN_print(bio_err, N);
323 BIO_printf(bio_err, "\n\tg=");
324 BN_print(bio_err, g);
325 BIO_printf(bio_err, "\n");
326 }
327
328 if (SRP_check_known_gN_param(g, N))
329 return 1;
330
331 if (srp_arg->amp == 1) {
332 if (srp_arg->debug)
333 BIO_printf(bio_err,
334 "SRP param N and g are not known params, going to check deeper.\n");
335
336 /*
337 * The srp_moregroups is a real debugging feature. Implementors
338 * should rather add the value to the known ones. The minimal size
339 * has already been tested.
340 */
341 if (BN_num_bits(g) <= BN_BITS && srp_Verify_N_and_g(N, g))
342 return 1;
343 }
344 BIO_printf(bio_err, "SRP param N and g rejected.\n");
345 return 0;
346}
edc032b5 347
e481f9b9 348# define PWD_STRLEN 1024
0f113f3e
MC		 349
350static char *ssl_give_srp_client_pwd_cb(SSL *s, void *arg)
351{
352 SRP_ARG *srp_arg = (SRP_ARG *)arg;
68dc6824 353 char *pass = app_malloc(PWD_STRLEN + 1, "SRP password buffer");
0f113f3e
MC		 354 PW_CB_DATA cb_tmp;
355 int l;
356
357 cb_tmp.password = (char *)srp_arg->srppassin;
358 cb_tmp.prompt_info = "SRP user";
359 if ((l = password_callback(pass, PWD_STRLEN, 0, &cb_tmp)) < 0) {
360 BIO_printf(bio_err, "Can't read Password\n");
361 OPENSSL_free(pass);
362 return NULL;
363 }
364 *(pass + l) = '\0';
365
366 return pass;
367}
368
e481f9b9 369#endif
7e1b7485 370
e481f9b9 371#ifndef OPENSSL_NO_NEXTPROTONEG
ee2ffc27
BL		 372/* This the context that we pass to next_proto_cb */
373typedef struct tlsextnextprotoctx_st {
0f113f3e 374 unsigned char *data;
817cd0d5 375 size_t len;
0f113f3e 376 int status;
ee2ffc27
BL		 377} tlsextnextprotoctx;
378
379static tlsextnextprotoctx next_proto;
380
0f113f3e
MC		 381static int next_proto_cb(SSL *s, unsigned char **out, unsigned char *outlen,
382 const unsigned char *in, unsigned int inlen,
383 void *arg)
384{
385 tlsextnextprotoctx *ctx = arg;
386
387 if (!c_quiet) {
388 /* We can assume that |in| is syntactically valid. */
389 unsigned i;
390 BIO_printf(bio_c_out, "Protocols advertised by server: ");
391 for (i = 0; i < inlen;) {
392 if (i)
393 BIO_write(bio_c_out, ", ", 2);
394 BIO_write(bio_c_out, &in[i + 1], in[i]);
395 i += in[i] + 1;
396 }
397 BIO_write(bio_c_out, "\n", 1);
398 }
399
400 ctx->status =
401 SSL_select_next_proto(out, outlen, in, inlen, ctx->data, ctx->len);
402 return SSL_TLSEXT_ERR_OK;
403}
e481f9b9 404#endif /* ndef OPENSSL_NO_NEXTPROTONEG */
0f113f3e
MC		 405
406static int serverinfo_cli_parse_cb(SSL *s, unsigned int ext_type,
407 const unsigned char *in, size_t inlen,
408 int *al, void *arg)
85c67492 409{
0f113f3e
MC		 410 char pem_name[100];
411 unsigned char ext_buf[4 + 65536];
412
413 /* Reconstruct the type/len fields prior to extension data */
3a63c0ed
AP		 414 inlen &= 0xffff; /* for formal memcmpy correctness */
415 ext_buf[0] = (unsigned char)(ext_type >> 8);
416 ext_buf[1] = (unsigned char)(ext_type);
417 ext_buf[2] = (unsigned char)(inlen >> 8);
418 ext_buf[3] = (unsigned char)(inlen);
0f113f3e
MC		 419 memcpy(ext_buf + 4, in, inlen);
420
421 BIO_snprintf(pem_name, sizeof(pem_name), "SERVERINFO FOR EXTENSION %d",
422 ext_type);
423 PEM_write_bio(bio_c_out, pem_name, "", ext_buf, 4 + inlen);
424 return 1;
425}
426
cddd424a
VD		 427/*
428 * Hex decoder that tolerates optional whitespace. Returns number of bytes
429 * produced, advances inptr to end of input string.
430 */
431static ossl_ssize_t hexdecode(const char **inptr, void *result)
432{
433 unsigned char **out = (unsigned char **)result;
434 const char *in = *inptr;
d6073e27 435 unsigned char *ret = app_malloc(strlen(in) / 2, "hexdecode");
cddd424a
VD		 436 unsigned char *cp = ret;
437 uint8_t byte;
438 int nibble = 0;
439
440 if (ret == NULL)
441 return -1;
442
443 for (byte = 0; *in; ++in) {
49445f21 444 int x;
cddd424a 445
18295f0c 446 if (isspace(_UC(*in)))
cddd424a 447 continue;
49445f21
RS		 448 x = OPENSSL_hexchar2int(*in);
449 if (x < 0) {
cddd424a
VD		 450 OPENSSL_free(ret);
451 return 0;
452 }
49445f21 453 byte |= (char)x;
cddd424a
VD		 454 if ((nibble ^= 1) == 0) {
455 *cp++ = byte;
456 byte = 0;
457 } else {
458 byte <<= 4;
459 }
460 }
461 if (nibble != 0) {
462 OPENSSL_free(ret);
463 return 0;
464 }
465 *inptr = in;
466
467 return cp - (*out = ret);
468}
469
470/*
471 * Decode unsigned 0..255, returns 1 on success, <= 0 on failure. Advances
472 * inptr to next field skipping leading whitespace.
473 */
474static ossl_ssize_t checked_uint8(const char **inptr, void *out)
475{
476 uint8_t *result = (uint8_t *)out;
477 const char *in = *inptr;
478 char *endp;
479 long v;
480 int e;
481
482 save_errno();
483 v = strtol(in, &endp, 10);
484 e = restore_errno();
485
486 if (((v == LONG_MIN || v == LONG_MAX) && e == ERANGE) ||
18295f0c 487 endp == in || !isspace(_UC(*endp)) ||
cddd424a
VD		 488 v != (*result = (uint8_t) v)) {
489 return -1;
490 }
18295f0c 491 for (in = endp; isspace(_UC(*in)); ++in)
cddd424a
VD		 492 continue;
493
494 *inptr = in;
495 return 1;
496}
497
7ff970ef
RS		 498struct tlsa_field {
499 void *var;
500 const char *name;
501 ossl_ssize_t (*parser)(const char **, void *);
502};
503
cddd424a
VD		 504static int tlsa_import_rr(SSL *con, const char *rrdata)
505{
7ff970ef
RS		 506 /* Not necessary to re-init these values; the "parsers" do that. */
507 static uint8_t usage;
508 static uint8_t selector;
509 static uint8_t mtype;
510 static unsigned char *data;
f232d6ec 511 static struct tlsa_field tlsa_fields[] = {
cddd424a
VD		 512 { &usage, "usage", checked_uint8 },
513 { &selector, "selector", checked_uint8 },
514 { &mtype, "mtype", checked_uint8 },
515 { &data, "data", hexdecode },
516 { NULL, }
517 };
518 struct tlsa_field *f;
7ff970ef
RS		 519 int ret;
520 const char *cp = rrdata;
521 ossl_ssize_t len = 0;
cddd424a
VD		 522
523 for (f = tlsa_fields; f->var; ++f) {
524 /* Returns number of bytes produced, advances cp to next field */
525 if ((len = f->parser(&cp, f->var)) <= 0) {
526 BIO_printf(bio_err, "%s: warning: bad TLSA %s field in: %s\n",
527 prog, f->name, rrdata);
528 return 0;
529 }
530 }
531 /* The data field is last, so len is its length */
532 ret = SSL_dane_tlsa_add(con, usage, selector, mtype, data, len);
533 OPENSSL_free(data);
534
535 if (ret == 0) {
536 ERR_print_errors(bio_err);
537 BIO_printf(bio_err, "%s: warning: unusable TLSA rrdata: %s\n",
538 prog, rrdata);
539 return 0;
540 }
541 if (ret < 0) {
542 ERR_print_errors(bio_err);
543 BIO_printf(bio_err, "%s: warning: error loading TLSA rrdata: %s\n",
544 prog, rrdata);
545 return 0;
546 }
547 return ret;
548}
549
550static int tlsa_import_rrset(SSL *con, STACK_OF(OPENSSL_STRING) *rrset)
551{
552 int num = sk_OPENSSL_STRING_num(rrset);
553 int count = 0;
554 int i;
555
556 for (i = 0; i < num; ++i) {
557 char *rrdata = sk_OPENSSL_STRING_value(rrset, i);
558 if (tlsa_import_rr(con, rrdata) > 0)
559 ++count;
560 }
561 return count > 0;
562}
563
7e1b7485
RS		 564typedef enum OPTION_choice {
565 OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
ebc01683 566 OPT_4, OPT_6, OPT_HOST, OPT_PORT, OPT_CONNECT, OPT_BIND, OPT_UNIX,
a7c04f2b 567 OPT_XMPPHOST, OPT_VERIFY, OPT_NAMEOPT,
7e1b7485
RS		 568 OPT_CERT, OPT_CRL, OPT_CRL_DOWNLOAD, OPT_SESS_OUT, OPT_SESS_IN,
569 OPT_CERTFORM, OPT_CRLFORM, OPT_VERIFY_RET_ERROR, OPT_VERIFY_QUIET,
570 OPT_BRIEF, OPT_PREXIT, OPT_CRLF, OPT_QUIET, OPT_NBIO,
3ee1eac2 571 OPT_SSL_CLIENT_ENGINE, OPT_IGN_EOF, OPT_NO_IGN_EOF,
3a4e9367 572 OPT_DEBUG, OPT_TLSEXTDEBUG, OPT_STATUS, OPT_WDEBUG,
7e1b7485
RS		 573 OPT_MSG, OPT_MSGFILE, OPT_ENGINE, OPT_TRACE, OPT_SECURITY_DEBUG,
574 OPT_SECURITY_DEBUG_VERBOSE, OPT_SHOWCERTS, OPT_NBIO_TEST, OPT_STATE,
72257204 575 OPT_PSK_IDENTITY, OPT_PSK, OPT_PSK_SESS,
bde136c8
F		 576#ifndef OPENSSL_NO_SRP
577 OPT_SRPUSER, OPT_SRPPASS, OPT_SRP_STRENGTH, OPT_SRP_LATEUSER,
578 OPT_SRP_MOREGROUPS,
579#endif
580 OPT_SSL3, OPT_SSL_CONFIG,
582a17d6 581 OPT_TLS1_3, OPT_TLS1_2, OPT_TLS1_1, OPT_TLS1, OPT_DTLS, OPT_DTLS1,
8ccc2377 582 OPT_DTLS1_2, OPT_SCTP, OPT_TIMEOUT, OPT_MTU, OPT_KEYFORM, OPT_PASS,
28e5ea88 583 OPT_CERT_CHAIN, OPT_CAPATH, OPT_NOCAPATH, OPT_CHAINCAPATH, OPT_VERIFYCAPATH,
2b6bcb70 584 OPT_KEY, OPT_RECONNECT, OPT_BUILD_CHAIN, OPT_CAFILE, OPT_NOCAFILE,
7e1b7485 585 OPT_CHAINCAFILE, OPT_VERIFYCAFILE, OPT_NEXTPROTONEG, OPT_ALPN,
28e5ea88 586 OPT_SERVERINFO, OPT_STARTTLS, OPT_SERVERNAME, OPT_NOSERVERNAME, OPT_ASYNC,
8176431d 587 OPT_USE_SRTP, OPT_KEYMATEXPORT, OPT_KEYMATEXPORTLEN, OPT_PROTOHOST,
cf72c757
F		 588 OPT_MAXFRAGLEN, OPT_MAX_SEND_FRAG, OPT_SPLIT_SEND_FRAG, OPT_MAX_PIPELINES,
589 OPT_READ_BUF, OPT_KEYLOG_FILE, OPT_EARLY_DATA, OPT_REQCAFILE,
7e1b7485
RS		 590 OPT_V_ENUM,
591 OPT_X_ENUM,
592 OPT_S_ENUM,
cddd424a 593 OPT_FALLBACKSCSV, OPT_NOCMDS, OPT_PROXY, OPT_DANE_TLSA_DOMAIN,
dd696a55 594#ifndef OPENSSL_NO_CT
43341433 595 OPT_CT, OPT_NOCT, OPT_CTLOG_FILE,
dd696a55 596#endif
3ee1eac2 597 OPT_DANE_TLSA_RRDATA, OPT_DANE_EE_NO_NAME,
9d75dce3 598 OPT_FORCE_PHA,
3ee1eac2 599 OPT_R_ENUM
7e1b7485
RS		 600} OPTION_CHOICE;
601
44c83ebd 602const OPTIONS s_client_options[] = {
7e1b7485
RS		 603 {"help", OPT_HELP, '-', "Display this summary"},
604 {"host", OPT_HOST, 's', "Use -connect instead"},
605 {"port", OPT_PORT, 'p', "Use -connect instead"},
606 {"connect", OPT_CONNECT, 's',
ab69ac00 607 "TCP/IP where to connect (default is :" PORT ")"},
ebc01683 608 {"bind", OPT_BIND, 's', "bind local address for connection"},
552bf8ec
MT		 609 {"proxy", OPT_PROXY, 's',
610 "Connect to via specified proxy to the real server"},
ab69ac00 611#ifdef AF_UNIX
a22f9c84 612 {"unix", OPT_UNIX, 's', "Connect over the specified Unix-domain socket"},
ab69ac00
RL		 613#endif
614 {"4", OPT_4, '-', "Use IPv4 only"},
fe08bd76 615#ifdef AF_INET6
ab69ac00 616 {"6", OPT_6, '-', "Use IPv6 only"},
fe08bd76 617#endif
7e1b7485
RS		 618 {"verify", OPT_VERIFY, 'p', "Turn on peer certificate verification"},
619 {"cert", OPT_CERT, '<', "Certificate file to use, PEM format assumed"},
620 {"certform", OPT_CERTFORM, 'F',
621 "Certificate format (PEM or DER) PEM default"},
a7c04f2b 622 {"nameopt", OPT_NAMEOPT, 's', "Various certificate name options"},
a6972f34
DW		 623 {"key", OPT_KEY, 's', "Private key file to use, if not in -cert file"},
624 {"keyform", OPT_KEYFORM, 'E', "Key format (PEM, DER or engine) PEM default"},
7e1b7485
RS		 625 {"pass", OPT_PASS, 's', "Private key file pass phrase source"},
626 {"CApath", OPT_CAPATH, '/', "PEM format directory of CA's"},
627 {"CAfile", OPT_CAFILE, '<', "PEM format file of CA's"},
2b6bcb70
MC		 628 {"no-CAfile", OPT_NOCAFILE, '-',
629 "Do not load the default certificates file"},
630 {"no-CApath", OPT_NOCAPATH, '-',
631 "Do not load certificates from the default certificates directory"},
d2add501 632 {"requestCAfile", OPT_REQCAFILE, '<',
5969a2dd 633 "PEM format file of CA names to send to the server"},
cddd424a
VD		 634 {"dane_tlsa_domain", OPT_DANE_TLSA_DOMAIN, 's', "DANE TLSA base domain"},
635 {"dane_tlsa_rrdata", OPT_DANE_TLSA_RRDATA, 's',
636 "DANE TLSA rrdata presentation form"},
c4fbed6c
VD		 637 {"dane_ee_no_namechecks", OPT_DANE_EE_NO_NAME, '-',
638 "Disable name checks when matching DANE-EE(3) TLSA records"},
7e1b7485
RS		 639 {"reconnect", OPT_RECONNECT, '-',
640 "Drop and re-make the connection with the same Session-ID"},
bdb59d97
MC		 641 {"showcerts", OPT_SHOWCERTS, '-',
642 "Show all certificates sent by the server"},
7e1b7485
RS		 643 {"debug", OPT_DEBUG, '-', "Extra output"},
644 {"msg", OPT_MSG, '-', "Show protocol messages"},
9a13bb38
RS		 645 {"msgfile", OPT_MSGFILE, '>',
646 "File to send output of -msg or -trace, instead of stdout"},
7e1b7485
RS		 647 {"nbio_test", OPT_NBIO_TEST, '-', "More ssl protocol testing"},
648 {"state", OPT_STATE, '-', "Print the ssl states"},
649 {"crlf", OPT_CRLF, '-', "Convert LF from terminal into CRLF"},
650 {"quiet", OPT_QUIET, '-', "No s_client output"},
651 {"ign_eof", OPT_IGN_EOF, '-', "Ignore input eof (default when -quiet)"},
652 {"no_ign_eof", OPT_NO_IGN_EOF, '-', "Don't ignore input eof"},
7e1b7485 653 {"starttls", OPT_STARTTLS, 's',
cfb4f1ef 654 "Use the appropriate STARTTLS command before starting TLS"},
898ea7b8 655 {"xmpphost", OPT_XMPPHOST, 's',
8176431d 656 "Alias of -name option for \"-starttls xmpp[-server]\""},
3ee1eac2 657 OPT_R_OPTIONS,
7e1b7485
RS		 658 {"sess_out", OPT_SESS_OUT, '>', "File to write SSL session to"},
659 {"sess_in", OPT_SESS_IN, '<', "File to read SSL session from"},
1fb6b0bf 660#ifndef OPENSSL_NO_SRTP
e77bdc73 661 {"use_srtp", OPT_USE_SRTP, 's',
7e1b7485 662 "Offer SRTP key management with a colon-separated profile list"},
1fb6b0bf 663#endif
7e1b7485
RS		 664 {"keymatexport", OPT_KEYMATEXPORT, 's',
665 "Export keying material using label"},
666 {"keymatexportlen", OPT_KEYMATEXPORTLEN, 'p',
667 "Export len bytes of keying material (default 20)"},
cf72c757
F		 668 {"maxfraglen", OPT_MAXFRAGLEN, 'p',
669 "Enable Maximum Fragment Length Negotiation (len values: 512, 1024, 2048 and 4096)"},
7e1b7485 670 {"fallback_scsv", OPT_FALLBACKSCSV, '-', "Send the fallback SCSV"},
8176431d
PY		 671 {"name", OPT_PROTOHOST, 's',
672 "Hostname to use for \"-starttls lmtp\", \"-starttls smtp\" or \"-starttls xmpp[-server]\""},
9a13bb38
RS		 673 {"CRL", OPT_CRL, '<', "CRL file to use"},
674 {"crl_download", OPT_CRL_DOWNLOAD, '-', "Download CRL from distribution points"},
675 {"CRLform", OPT_CRLFORM, 'F', "CRL format (PEM or DER) PEM is default"},
676 {"verify_return_error", OPT_VERIFY_RET_ERROR, '-',
677 "Close connection on verification error"},
678 {"verify_quiet", OPT_VERIFY_QUIET, '-', "Restrict verify output to errors"},
679 {"brief", OPT_BRIEF, '-',
680 "Restrict output to brief summary of connection parameters"},
681 {"prexit", OPT_PREXIT, '-',
682 "Print session information when the program exits"},
683 {"security_debug", OPT_SECURITY_DEBUG, '-',
684 "Enable security debug messages"},
685 {"security_debug_verbose", OPT_SECURITY_DEBUG_VERBOSE, '-',
686 "Output more security debug output"},
687 {"cert_chain", OPT_CERT_CHAIN, '<',
688 "Certificate chain file (in PEM format)"},
689 {"chainCApath", OPT_CHAINCAPATH, '/',
690 "Use dir as certificate store path to build CA certificate chain"},
691 {"verifyCApath", OPT_VERIFYCAPATH, '/',
692 "Use dir as certificate store path to verify CA certificate"},
693 {"build_chain", OPT_BUILD_CHAIN, '-', "Build certificate chain"},
694 {"chainCAfile", OPT_CHAINCAFILE, '<',
695 "CA file for certificate chain (PEM format)"},
696 {"verifyCAfile", OPT_VERIFYCAFILE, '<',
697 "CA file for certificate verification (PEM format)"},
9c3bcfa0
RS		 698 {"nocommands", OPT_NOCMDS, '-', "Do not use interactive command letters"},
699 {"servername", OPT_SERVERNAME, 's',
481afe2a 700 "Set TLS extension servername (SNI) in ClientHello (default)"},
11ba87f2
MC		 701 {"noservername", OPT_NOSERVERNAME, '-',
702 "Do not send the server name (SNI) extension in the ClientHello"},
9c3bcfa0
RS		 703 {"tlsextdebug", OPT_TLSEXTDEBUG, '-',
704 "Hex dump of all TLS extensions received"},
3e41ac35 705#ifndef OPENSSL_NO_OCSP
9c3bcfa0 706 {"status", OPT_STATUS, '-', "Request certificate status from server"},
3e41ac35 707#endif
9c3bcfa0
RS		 708 {"serverinfo", OPT_SERVERINFO, 's',
709 "types Send empty ClientHello extensions (comma-separated numbers)"},
710 {"alpn", OPT_ALPN, 's',
711 "Enable ALPN extension, considering named protocols supported (comma-separated list)"},
7e25dd6d 712 {"async", OPT_ASYNC, '-', "Support asynchronous operation"},
9a13bb38 713 {"ssl_config", OPT_SSL_CONFIG, 's', "Use specified configuration file"},
28e5ea88 714 {"max_send_frag", OPT_MAX_SEND_FRAG, 'p', "Maximum Size of send frames "},
36b2cfb1 715 {"split_send_frag", OPT_SPLIT_SEND_FRAG, 'p',
0df80881 716 "Size used to split data for encrypt pipelines"},
36b2cfb1 717 {"max_pipelines", OPT_MAX_PIPELINES, 'p',
032c6d21 718 "Maximum number of encrypt/decrypt pipelines to be used"},
36b2cfb1 719 {"read_buf", OPT_READ_BUF, 'p',
dad78fb1 720 "Default read buffer size to be used for connections"},
9c3bcfa0
RS		 721 OPT_S_OPTIONS,
722 OPT_V_OPTIONS,
723 OPT_X_OPTIONS,
724#ifndef OPENSSL_NO_SSL3
725 {"ssl3", OPT_SSL3, '-', "Just use SSLv3"},
726#endif
6b01bed2
VD		 727#ifndef OPENSSL_NO_TLS1
728 {"tls1", OPT_TLS1, '-', "Just use TLSv1"},
729#endif
730#ifndef OPENSSL_NO_TLS1_1
731 {"tls1_1", OPT_TLS1_1, '-', "Just use TLSv1.1"},
732#endif
733#ifndef OPENSSL_NO_TLS1_2
734 {"tls1_2", OPT_TLS1_2, '-', "Just use TLSv1.2"},
735#endif
582a17d6
MC		 736#ifndef OPENSSL_NO_TLS1_3
737 {"tls1_3", OPT_TLS1_3, '-', "Just use TLSv1.3"},
738#endif
a5ecdc6a 739#ifndef OPENSSL_NO_DTLS
9a13bb38
RS		 740 {"dtls", OPT_DTLS, '-', "Use any version of DTLS"},
741 {"timeout", OPT_TIMEOUT, '-',
742 "Enable send/receive timeout on DTLS connections"},
9c3bcfa0
RS		 743 {"mtu", OPT_MTU, 'p', "Set the link layer MTU"},
744#endif
6b01bed2
VD		 745#ifndef OPENSSL_NO_DTLS1
746 {"dtls1", OPT_DTLS1, '-', "Just use DTLSv1"},
747#endif
748#ifndef OPENSSL_NO_DTLS1_2
9a13bb38 749 {"dtls1_2", OPT_DTLS1_2, '-', "Just use DTLSv1.2"},
6b01bed2 750#endif
8ccc2377
MC		 751#ifndef OPENSSL_NO_SCTP
752 {"sctp", OPT_SCTP, '-', "Use SCTP"},
753#endif
9c3bcfa0 754#ifndef OPENSSL_NO_SSL_TRACE
9a13bb38 755 {"trace", OPT_TRACE, '-', "Show trace output of protocol messages"},
9c3bcfa0 756#endif
7e1b7485
RS		 757#ifdef WATT32
758 {"wdebug", OPT_WDEBUG, '-', "WATT-32 tcp debugging"},
759#endif
7e1b7485 760 {"nbio", OPT_NBIO, '-', "Use non-blocking IO"},
7e1b7485
RS		 761 {"psk_identity", OPT_PSK_IDENTITY, 's', "PSK identity"},
762 {"psk", OPT_PSK, 's', "PSK in hex (without 0x)"},
e261bdd1 763 {"psk_session", OPT_PSK_SESS, '<', "File to read PSK SSL session from"},
7e1b7485 764#ifndef OPENSSL_NO_SRP
bde136c8 765 {"srpuser", OPT_SRPUSER, 's', "SRP authentication for 'user'"},
7e1b7485
RS		 766 {"srppass", OPT_SRPPASS, 's', "Password for 'user'"},
767 {"srp_lateuser", OPT_SRP_LATEUSER, '-',
768 "SRP username into second ClientHello message"},
769 {"srp_moregroups", OPT_SRP_MOREGROUPS, '-',
770 "Tolerate other than the known g N values."},
740ceb5b 771 {"srp_strength", OPT_SRP_STRENGTH, 'p', "Minimal length in bits for N"},
7e1b7485 772#endif
e481f9b9 773#ifndef OPENSSL_NO_NEXTPROTONEG
7e1b7485
RS		 774 {"nextprotoneg", OPT_NEXTPROTONEG, 's',
775 "Enable NPN extension, considering named protocols supported (comma-separated list)"},
7e1b7485 776#endif
7e1b7485
RS		 777#ifndef OPENSSL_NO_ENGINE
778 {"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"},
9a13bb38
RS		 779 {"ssl_client_engine", OPT_SSL_CLIENT_ENGINE, 's',
780 "Specify engine to be used for client certificate operations"},
dd696a55
RP		 781#endif
782#ifndef OPENSSL_NO_CT
43341433 783 {"ct", OPT_CT, '-', "Request and parse SCTs (also enables OCSP stapling)"},
dd696a55 784 {"noct", OPT_NOCT, '-', "Do not request or parse SCTs (default)"},
dd696a55 785 {"ctlogfile", OPT_CTLOG_FILE, '<', "CT log list CONF file"},
7e1b7485 786#endif
4bf73e9f 787 {"keylogfile", OPT_KEYLOG_FILE, '>', "Write TLS secrets to file"},
923ac827 788 {"early_data", OPT_EARLY_DATA, '<', "File to send as early data"},
9d75dce3 789 {"force_pha", OPT_FORCE_PHA, '-', "Force-enable post-handshake-authentication"},
bde136c8 790 {NULL, OPT_EOF, 0x00, NULL}
7e1b7485
RS		 791};
792
793typedef enum PROTOCOL_choice {
794 PROTO_OFF,
0f113f3e
MC		 795 PROTO_SMTP,
796 PROTO_POP3,
797 PROTO_IMAP,
798 PROTO_FTP,
d8c25de5 799 PROTO_TELNET,
552bf8ec 800 PROTO_XMPP,
898ea7b8 801 PROTO_XMPP_SERVER,
cfb4f1ef 802 PROTO_CONNECT,
b2e54eb8 803 PROTO_IRC,
a2d9cfba 804 PROTO_MYSQL,
9576545a 805 PROTO_POSTGRES,
8f85aa6b 806 PROTO_LMTP,
20967afb 807 PROTO_NNTP,
398b0bbd
RS		 808 PROTO_SIEVE,
809 PROTO_LDAP
7e1b7485
RS		 810} PROTOCOL_CHOICE;
811
bde136c8 812static const OPT_PAIR services[] = {
7e1b7485
RS		 813 {"smtp", PROTO_SMTP},
814 {"pop3", PROTO_POP3},
815 {"imap", PROTO_IMAP},
816 {"ftp", PROTO_FTP},
817 {"xmpp", PROTO_XMPP},
898ea7b8 818 {"xmpp-server", PROTO_XMPP_SERVER},
d8c25de5 819 {"telnet", PROTO_TELNET},
cfb4f1ef 820 {"irc", PROTO_IRC},
a2d9cfba 821 {"mysql", PROTO_MYSQL},
b2e54eb8 822 {"postgres", PROTO_POSTGRES},
9576545a 823 {"lmtp", PROTO_LMTP},
8f85aa6b 824 {"nntp", PROTO_NNTP},
20967afb 825 {"sieve", PROTO_SIEVE},
398b0bbd 826 {"ldap", PROTO_LDAP},
bde136c8 827 {NULL, 0}
85c67492
RL		 828};
829
fe08bd76
RS		 830#define IS_INET_FLAG(o) \
831 (o == OPT_4 || o == OPT_6 || o == OPT_HOST || o == OPT_PORT || o == OPT_CONNECT)
832#define IS_UNIX_FLAG(o) (o == OPT_UNIX)
833
4bbd4ba6
MC		 834#define IS_PROT_FLAG(o) \
835 (o == OPT_SSL3 || o == OPT_TLS1 || o == OPT_TLS1_1 || o == OPT_TLS1_2 \
582a17d6 836 || o == OPT_TLS1_3 || o == OPT_DTLS || o == OPT_DTLS1 || o == OPT_DTLS1_2)
4bbd4ba6 837
7315ce80
RS		 838/* Free |*dest| and optionally set it to a copy of |source|. */
839static void freeandcopy(char **dest, const char *source)
840{
841 OPENSSL_free(*dest);
842 *dest = NULL;
843 if (source != NULL)
844 *dest = OPENSSL_strdup(source);
845}
846
20c0bce5 847static int new_session_cb(SSL *s, SSL_SESSION *sess)
be62b22b 848{
be62b22b 849
20c0bce5
MC		 850 if (sess_out != NULL) {
851 BIO *stmp = BIO_new_file(sess_out, "w");
852
853 if (stmp == NULL) {
854 BIO_printf(bio_err, "Error writing session file %s\n", sess_out);
855 } else {
856 PEM_write_bio_SSL_SESSION(stmp, sess);
857 BIO_free(stmp);
858 }
859 }
860
861 /*
862 * Session data gets dumped on connection for TLSv1.2 and below, and on
863 * arrival of the NewSessionTicket for TLSv1.3.
864 */
865 if (SSL_version(s) == TLS1_3_VERSION) {
866 BIO_printf(bio_c_out,
867 "---\nPost-Handshake New Session Ticket arrived:\n");
868 SSL_SESSION_print(bio_c_out, sess);
869 BIO_printf(bio_c_out, "---\n");
be62b22b
MC		 870 }
871
872 /*
873 * We always return a "fail" response so that the session gets freed again
874 * because we haven't used the reference.
875 */
876 return 0;
877}
878
7e1b7485 879int s_client_main(int argc, char **argv)
0f113f3e 880{
7e1b7485 881 BIO *sbio;
0f113f3e 882 EVP_PKEY *key = NULL;
7e1b7485 883 SSL *con = NULL;
0f113f3e 884 SSL_CTX *ctx = NULL;
7e1b7485
RS		 885 STACK_OF(X509) *chain = NULL;
886 X509 *cert = NULL;
0f113f3e 887 X509_VERIFY_PARAM *vpm = NULL;
7e1b7485
RS		 888 SSL_EXCERT *exc = NULL;
889 SSL_CONF_CTX *cctx = NULL;
890 STACK_OF(OPENSSL_STRING) *ssl_args = NULL;
cddd424a
VD		 891 char *dane_tlsa_domain = NULL;
892 STACK_OF(OPENSSL_STRING) *dane_tlsa_rrset = NULL;
c4fbed6c 893 int dane_ee_no_name = 0;
7e1b7485 894 STACK_OF(X509_CRL) *crls = NULL;
13c9bb3e 895 const SSL_METHOD *meth = TLS_client_method();
cc696296
F		 896 const char *CApath = NULL, *CAfile = NULL;
897 char *cbuf = NULL, *sbuf = NULL;
ebc01683 898 char *mbuf = NULL, *proxystr = NULL, *connectstr = NULL, *bindstr = NULL;
cddd424a 899 char *cert_file = NULL, *key_file = NULL, *chain_file = NULL;
ab69ac00 900 char *chCApath = NULL, *chCAfile = NULL, *host = NULL;
7315ce80 901 char *port = OPENSSL_strdup(PORT);
ebc01683 902 char *bindhost = NULL, *bindport = NULL;
7e1b7485 903 char *passarg = NULL, *pass = NULL, *vfyCApath = NULL, *vfyCAfile = NULL;
d2add501 904 char *ReqCAfile = NULL;
be62b22b 905 char *sess_in = NULL, *crl_file = NULL, *p;
8176431d 906 const char *protohost = NULL;
0f113f3e 907 struct timeval timeout, *timeoutp;
7e1b7485 908 fd_set readfds, writefds;
2b6bcb70 909 int noCApath = 0, noCAfile = 0;
7e1b7485
RS		 910 int build_chain = 0, cbuf_len, cbuf_off, cert_format = FORMAT_PEM;
911 int key_format = FORMAT_PEM, crlf = 0, full_log = 1, mbuf_len = 0;
912 int prexit = 0;
40a8e9c2 913 int sdebug = 0;
7e1b7485 914 int reconnect = 0, verify = SSL_VERIFY_NONE, vpmtouched = 0;
480405e4 915 int ret = 1, in_init = 1, i, nbio_test = 0, s = -1, k, width, state = 0;
ab69ac00 916 int sbuf_len, sbuf_off, cmdletters = 1;
8ccc2377 917 int socket_family = AF_UNSPEC, socket_type = SOCK_STREAM, protocol = 0;
7e1b7485
RS		 918 int starttls_proto = PROTO_OFF, crl_format = FORMAT_PEM, crl_download = 0;
919 int write_tty, read_tty, write_ssl, read_ssl, tty_on, ssl_pending;
d485640b 920#if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS)
a3ef2c16 921 int at_eof = 0;
d485640b 922#endif
dad78fb1 923 int read_buf_len = 0;
7e1b7485 924 int fallback_scsv = 0;
7e1b7485 925 OPTION_CHOICE o;
40a8e9c2
MC		 926#ifndef OPENSSL_NO_DTLS
927 int enable_timeouts = 0;
928 long socket_mtu = 0;
929#endif
0b13e9f0 930#ifndef OPENSSL_NO_ENGINE
0f113f3e 931 ENGINE *ssl_client_engine = NULL;
7e1b7485 932#endif
333b070e 933 ENGINE *e = NULL;
1fbab1dc 934#if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
0f113f3e 935 struct timeval tv;
06f4536a 936#endif
44f19af7 937 const char *servername = NULL;
11ba87f2 938 int noservername = 0;
7e1b7485 939 const char *alpn_in = NULL;
0f113f3e 940 tlsextctx tlsextcbp = { NULL, 0 };
287d0b94 941 const char *ssl_config = NULL;
e481f9b9 942#define MAX_SI_TYPES 100
7e1b7485
RS		 943 unsigned short serverinfo_types[MAX_SI_TYPES];
944 int serverinfo_count = 0, start = 0, len;
e481f9b9 945#ifndef OPENSSL_NO_NEXTPROTONEG
0f113f3e 946 const char *next_proto_neg_in = NULL;
ed551cdd 947#endif
edc032b5 948#ifndef OPENSSL_NO_SRP
0f113f3e
MC		 949 char *srppass = NULL;
950 int srp_lateuser = 0;
951 SRP_ARG srp_arg = { NULL, NULL, 0, 0, 0, 1024 };
952#endif
dad88680 953#ifndef OPENSSL_NO_SRTP
1fb6b0bf 954 char *srtp_profiles = NULL;
dad88680 955#endif
dd696a55
RP		 956#ifndef OPENSSL_NO_CT
957 char *ctlog_file = NULL;
43341433 958 int ct_validation = 0;
dd696a55 959#endif
4bbd4ba6 960 int min_version = 0, max_version = 0, prot_opt = 0, no_prot_opt = 0;
fba13663 961 int async = 0;
28e5ea88 962 unsigned int max_send_fragment = 0;
36b2cfb1 963 unsigned int split_send_fragment = 0, max_pipelines = 0;
fe08bd76
RS		 964 enum { use_inet, use_unix, use_unknown } connect_type = use_unknown;
965 int count4or6 = 0;
cf72c757 966 uint8_t maxfraglen = 0;
54463e4f 967 int c_nbio = 0, c_msg = 0, c_ign_eof = 0, c_brief = 0;
057c676a
RL		 968 int c_tlsextdebug = 0;
969#ifndef OPENSSL_NO_OCSP
970 int c_status_req = 0;
971#endif
54463e4f 972 BIO *bio_c_msg = NULL;
923ac827 973 const char *keylog_file = NULL, *early_data_file = NULL;
9ff2cebf 974#ifndef OPENSSL_NO_DTLS
8ccc2377 975 int isdtls = 0;
9ff2cebf 976#endif
e261bdd1 977 char *psksessf = NULL;
9d75dce3 978 int force_pha = 0;
0f113f3e 979
efc943be
EK		 980 FD_ZERO(&readfds);
981 FD_ZERO(&writefds);
982/* Known false-positive of MemorySanitizer. */
983#if defined(__has_feature)
984# if __has_feature(memory_sanitizer)
985 __msan_unpoison(&readfds, sizeof(readfds));
986 __msan_unpoison(&writefds, sizeof(writefds));
987# endif
988#endif
989
7e1b7485 990 prog = opt_progname(argv[0]);
0f113f3e 991 c_quiet = 0;
0f113f3e 992 c_debug = 0;
0f113f3e 993 c_showcerts = 0;
7e1b7485 994 c_nbio = 0;
7e1b7485 995 vpm = X509_VERIFY_PARAM_new();
0f113f3e 996 cctx = SSL_CONF_CTX_new();
0f113f3e 997
68dc6824 998 if (vpm == NULL || cctx == NULL) {
7e1b7485 999 BIO_printf(bio_err, "%s: out of memory\n", prog);
0f113f3e
MC		 1000 goto end;
1001 }
1002
acc00492
F		 1003 cbuf = app_malloc(BUFSIZZ, "cbuf");
1004 sbuf = app_malloc(BUFSIZZ, "sbuf");
1005 mbuf = app_malloc(BUFSIZZ, "mbuf");
1006
7e1b7485 1007 SSL_CONF_CTX_set_flags(cctx, SSL_CONF_FLAG_CLIENT | SSL_CONF_FLAG_CMDLINE);
0f113f3e 1008
7e1b7485
RS		 1009 prog = opt_init(argc, argv, s_client_options);
1010 while ((o = opt_next()) != OPT_EOF) {
fe08bd76
RS		 1011 /* Check for intermixing flags. */
1012 if (connect_type == use_unix && IS_INET_FLAG(o)) {
1013 BIO_printf(bio_err,
d6073e27
F		 1014 "%s: Intermixed protocol flags (unix and internet domains)\n",
1015 prog);
fe08bd76
RS		 1016 goto end;
1017 }
1018 if (connect_type == use_inet && IS_UNIX_FLAG(o)) {
1019 BIO_printf(bio_err,
d6073e27
F		 1020 "%s: Intermixed protocol flags (internet and unix domains)\n",
1021 prog);
fe08bd76
RS		 1022 goto end;
1023 }
4bbd4ba6
MC		 1024
1025 if (IS_PROT_FLAG(o) && ++prot_opt > 1) {
1026 BIO_printf(bio_err, "Cannot supply multiple protocol flags\n");
1027 goto end;
1028 }
1029 if (IS_NO_PROT_FLAG(o))
1030 no_prot_opt++;
1031 if (prot_opt == 1 && no_prot_opt) {
d6073e27
F		 1032 BIO_printf(bio_err,
1033 "Cannot supply both a protocol flag and '-no_<prot>'\n");
4bbd4ba6
MC		 1034 goto end;
1035 }
1036
7e1b7485 1037 switch (o) {
7e1b7485
RS		 1038 case OPT_EOF:
1039 case OPT_ERR:
1040 opthelp:
1041 BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
1042 goto end;
1043 case OPT_HELP:
1044 opt_help(s_client_options);
1045 ret = 0;
1046 goto end;
ab69ac00 1047 case OPT_4:
fe08bd76 1048 connect_type = use_inet;
ab69ac00 1049 socket_family = AF_INET;
fe08bd76 1050 count4or6++;
ab69ac00 1051 break;
ab69ac00 1052#ifdef AF_INET6
fe08bd76
RS		 1053 case OPT_6:
1054 connect_type = use_inet;
1055 socket_family = AF_INET6;
1056 count4or6++;
ab69ac00 1057 break;
ab69ac00 1058#endif
fe08bd76
RS		 1059 case OPT_HOST:
1060 connect_type = use_inet;
7315ce80 1061 freeandcopy(&host, opt_arg());
7e1b7485
RS		 1062 break;
1063 case OPT_PORT:
fe08bd76 1064 connect_type = use_inet;
7315ce80 1065 freeandcopy(&port, opt_arg());
7e1b7485
RS		 1066 break;
1067 case OPT_CONNECT:
fe08bd76 1068 connect_type = use_inet;
7315ce80 1069 freeandcopy(&connectstr, opt_arg());
552bf8ec 1070 break;
ebc01683
JH		 1071 case OPT_BIND:
1072 freeandcopy(&bindstr, opt_arg());
1073 break;
552bf8ec
MT		 1074 case OPT_PROXY:
1075 proxystr = opt_arg();
1076 starttls_proto = PROTO_CONNECT;
7e1b7485 1077 break;
ab69ac00 1078#ifdef AF_UNIX
7e1b7485 1079 case OPT_UNIX:
fe08bd76 1080 connect_type = use_unix;
ab69ac00 1081 socket_family = AF_UNIX;
7315ce80 1082 freeandcopy(&host, opt_arg());
7e1b7485 1083 break;
ab69ac00 1084#endif
d8c25de5 1085 case OPT_XMPPHOST:
8176431d
PY		 1086 /* fall through, since this is an alias */
1087 case OPT_PROTOHOST:
1088 protohost = opt_arg();
d8c25de5 1089 break;
7e1b7485 1090 case OPT_VERIFY:
0f113f3e 1091 verify = SSL_VERIFY_PEER;
acc00492 1092 verify_args.depth = atoi(opt_arg());
0f113f3e 1093 if (!c_quiet)
acc00492 1094 BIO_printf(bio_err, "verify depth is %d\n", verify_args.depth);
7e1b7485
RS		 1095 break;
1096 case OPT_CERT:
1097 cert_file = opt_arg();
1098 break;
a7c04f2b
DB		 1099 case OPT_NAMEOPT:
1100 if (!set_nameopt(opt_arg()))
1101 goto end;
1102 break;
7e1b7485
RS		 1103 case OPT_CRL:
1104 crl_file = opt_arg();
1105 break;
1106 case OPT_CRL_DOWNLOAD:
0f113f3e 1107 crl_download = 1;
7e1b7485
RS		 1108 break;
1109 case OPT_SESS_OUT:
1110 sess_out = opt_arg();
1111 break;
1112 case OPT_SESS_IN:
1113 sess_in = opt_arg();
1114 break;
1115 case OPT_CERTFORM:
1116 if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &cert_format))
1117 goto opthelp;
1118 break;
1119 case OPT_CRLFORM:
1120 if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &crl_format))
1121 goto opthelp;
1122 break;
1123 case OPT_VERIFY_RET_ERROR:
acc00492 1124 verify_args.return_error = 1;
7e1b7485
RS		 1125 break;
1126 case OPT_VERIFY_QUIET:
acc00492 1127 verify_args.quiet = 1;
7e1b7485
RS		 1128 break;
1129 case OPT_BRIEF:
acc00492 1130 c_brief = verify_args.quiet = c_quiet = 1;
7e1b7485
RS		 1131 break;
1132 case OPT_S_CASES:
1133 if (ssl_args == NULL)
1134 ssl_args = sk_OPENSSL_STRING_new_null();
1135 if (ssl_args == NULL
1136 || !sk_OPENSSL_STRING_push(ssl_args, opt_flag())
1137 || !sk_OPENSSL_STRING_push(ssl_args, opt_arg())) {
1138 BIO_printf(bio_err, "%s: Memory allocation failure\n", prog);
1139 goto end;
1140 }
1141 break;
1142 case OPT_V_CASES:
1143 if (!opt_verify(o, vpm))
1144 goto end;
1145 vpmtouched++;
1146 break;
1147 case OPT_X_CASES:
1148 if (!args_excert(o, &exc))
1149 goto end;
1150 break;
1151 case OPT_PREXIT:
0f113f3e 1152 prexit = 1;
7e1b7485
RS		 1153 break;
1154 case OPT_CRLF:
0f113f3e 1155 crlf = 1;
7e1b7485
RS		 1156 break;
1157 case OPT_QUIET:
1158 c_quiet = c_ign_eof = 1;
1159 break;
1160 case OPT_NBIO:
1161 c_nbio = 1;
1162 break;
6ba8a5b7
RS		 1163 case OPT_NOCMDS:
1164 cmdletters = 0;
1165 break;
7e1b7485 1166 case OPT_ENGINE:
333b070e 1167 e = setup_engine(opt_arg(), 1);
7e1b7485
RS		 1168 break;
1169 case OPT_SSL_CLIENT_ENGINE:
333b070e
RS		 1170#ifndef OPENSSL_NO_ENGINE
1171 ssl_client_engine = ENGINE_by_id(opt_arg());
1172 if (ssl_client_engine == NULL) {
1173 BIO_printf(bio_err, "Error getting client auth engine\n");
1174 goto opthelp;
1175 }
333b070e 1176#endif
7e1b7485 1177 break;
3ee1eac2
RS		 1178 case OPT_R_CASES:
1179 if (!opt_rand(o))
1180 goto end;
7e1b7485
RS		 1181 break;
1182 case OPT_IGN_EOF:
0f113f3e 1183 c_ign_eof = 1;
7e1b7485
RS		 1184 break;
1185 case OPT_NO_IGN_EOF:
0f113f3e 1186 c_ign_eof = 0;
7e1b7485 1187 break;
7e1b7485 1188 case OPT_DEBUG:
0f113f3e 1189 c_debug = 1;
7e1b7485 1190 break;
7e1b7485 1191 case OPT_TLSEXTDEBUG:
0f113f3e 1192 c_tlsextdebug = 1;
7e1b7485
RS		 1193 break;
1194 case OPT_STATUS:
057c676a 1195#ifndef OPENSSL_NO_OCSP
0f113f3e 1196 c_status_req = 1;
057c676a 1197#endif
7e1b7485 1198 break;
7e1b7485 1199 case OPT_WDEBUG:
9c3bcfa0 1200#ifdef WATT32
0f113f3e
MC		 1201 dbug_init();
1202#endif
9c3bcfa0 1203 break;
7e1b7485 1204 case OPT_MSG:
0f113f3e 1205 c_msg = 1;
7e1b7485
RS		 1206 break;
1207 case OPT_MSGFILE:
1208 bio_c_msg = BIO_new_file(opt_arg(), "w");
1209 break;
7e1b7485 1210 case OPT_TRACE:
9c3bcfa0 1211#ifndef OPENSSL_NO_SSL_TRACE
0f113f3e
MC		 1212 c_msg = 2;
1213#endif
9c3bcfa0 1214 break;
7e1b7485 1215 case OPT_SECURITY_DEBUG:
0f113f3e 1216 sdebug = 1;
7e1b7485
RS		 1217 break;
1218 case OPT_SECURITY_DEBUG_VERBOSE:
0f113f3e 1219 sdebug = 2;
7e1b7485
RS		 1220 break;
1221 case OPT_SHOWCERTS:
0f113f3e 1222 c_showcerts = 1;
7e1b7485
RS		 1223 break;
1224 case OPT_NBIO_TEST:
0f113f3e 1225 nbio_test = 1;
7e1b7485
RS		 1226 break;
1227 case OPT_STATE:
0f113f3e 1228 state = 1;
7e1b7485 1229 break;
7e1b7485
RS		 1230 case OPT_PSK_IDENTITY:
1231 psk_identity = opt_arg();
1232 break;
1233 case OPT_PSK:
1234 for (p = psk_key = opt_arg(); *p; p++) {
18295f0c 1235 if (isxdigit(_UC(*p)))
0f113f3e 1236 continue;
7e1b7485
RS		 1237 BIO_printf(bio_err, "Not a hex number '%s'\n", psk_key);
1238 goto end;
0f113f3e 1239 }
13cbe5e7 1240 break;
e261bdd1
MC		 1241 case OPT_PSK_SESS:
1242 psksessf = opt_arg();
1243 break;
edc032b5 1244#ifndef OPENSSL_NO_SRP
7e1b7485
RS		 1245 case OPT_SRPUSER:
1246 srp_arg.srplogin = opt_arg();
0d5301af
KR		 1247 if (min_version < TLS1_VERSION)
1248 min_version = TLS1_VERSION;
7e1b7485
RS		 1249 break;
1250 case OPT_SRPPASS:
1251 srppass = opt_arg();
0d5301af
KR		 1252 if (min_version < TLS1_VERSION)
1253 min_version = TLS1_VERSION;
7e1b7485
RS		 1254 break;
1255 case OPT_SRP_STRENGTH:
1256 srp_arg.strength = atoi(opt_arg());
0f113f3e
MC		 1257 BIO_printf(bio_err, "SRP minimal length for N is %d\n",
1258 srp_arg.strength);
0d5301af
KR		 1259 if (min_version < TLS1_VERSION)
1260 min_version = TLS1_VERSION;
7e1b7485
RS		 1261 break;
1262 case OPT_SRP_LATEUSER:
0f113f3e 1263 srp_lateuser = 1;
0d5301af
KR		 1264 if (min_version < TLS1_VERSION)
1265 min_version = TLS1_VERSION;
7e1b7485
RS		 1266 break;
1267 case OPT_SRP_MOREGROUPS:
0f113f3e 1268 srp_arg.amp = 1;
0d5301af
KR		 1269 if (min_version < TLS1_VERSION)
1270 min_version = TLS1_VERSION;
7e1b7485 1271 break;
edc032b5 1272#endif
287d0b94
DSH		 1273 case OPT_SSL_CONFIG:
1274 ssl_config = opt_arg();
1275 break;
7e1b7485 1276 case OPT_SSL3:
0d5301af
KR		 1277 min_version = SSL3_VERSION;
1278 max_version = SSL3_VERSION;
9c3bcfa0 1279 break;
582a17d6
MC		 1280 case OPT_TLS1_3:
1281 min_version = TLS1_3_VERSION;
1282 max_version = TLS1_3_VERSION;
1283 break;
7e1b7485 1284 case OPT_TLS1_2:
0d5301af
KR		 1285 min_version = TLS1_2_VERSION;
1286 max_version = TLS1_2_VERSION;
7e1b7485
RS		 1287 break;
1288 case OPT_TLS1_1:
0d5301af
KR		 1289 min_version = TLS1_1_VERSION;
1290 max_version = TLS1_1_VERSION;
7e1b7485
RS		 1291 break;
1292 case OPT_TLS1:
0d5301af
KR		 1293 min_version = TLS1_VERSION;
1294 max_version = TLS1_VERSION;
7e1b7485 1295 break;
7e1b7485 1296 case OPT_DTLS:
6b01bed2 1297#ifndef OPENSSL_NO_DTLS
0f113f3e
MC		 1298 meth = DTLS_client_method();
1299 socket_type = SOCK_DGRAM;
8ccc2377 1300 isdtls = 1;
6b01bed2 1301#endif
7e1b7485
RS		 1302 break;
1303 case OPT_DTLS1:
6b01bed2 1304#ifndef OPENSSL_NO_DTLS1
0d5301af
KR		 1305 meth = DTLS_client_method();
1306 min_version = DTLS1_VERSION;
1307 max_version = DTLS1_VERSION;
0f113f3e 1308 socket_type = SOCK_DGRAM;
8ccc2377 1309 isdtls = 1;
6b01bed2 1310#endif
7e1b7485
RS		 1311 break;
1312 case OPT_DTLS1_2:
6b01bed2 1313#ifndef OPENSSL_NO_DTLS1_2
0d5301af
KR		 1314 meth = DTLS_client_method();
1315 min_version = DTLS1_2_VERSION;
1316 max_version = DTLS1_2_VERSION;
0f113f3e 1317 socket_type = SOCK_DGRAM;
8ccc2377
MC		 1318 isdtls = 1;
1319#endif
1320 break;
1321 case OPT_SCTP:
1322#ifndef OPENSSL_NO_SCTP
1323 protocol = IPPROTO_SCTP;
6b01bed2 1324#endif
7e1b7485
RS		 1325 break;
1326 case OPT_TIMEOUT:
6b01bed2 1327#ifndef OPENSSL_NO_DTLS
0f113f3e 1328 enable_timeouts = 1;
6b01bed2 1329#endif
7e1b7485
RS		 1330 break;
1331 case OPT_MTU:
6b01bed2 1332#ifndef OPENSSL_NO_DTLS
7e1b7485 1333 socket_mtu = atol(opt_arg());
0f113f3e 1334#endif
6b01bed2 1335 break;
7e1b7485 1336 case OPT_FALLBACKSCSV:
0f113f3e 1337 fallback_scsv = 1;
7e1b7485
RS		 1338 break;
1339 case OPT_KEYFORM:
a6972f34 1340 if (!opt_format(opt_arg(), OPT_FMT_PDE, &key_format))
7e1b7485
RS		 1341 goto opthelp;
1342 break;
1343 case OPT_PASS:
1344 passarg = opt_arg();
1345 break;
1346 case OPT_CERT_CHAIN:
1347 chain_file = opt_arg();
1348 break;
1349 case OPT_KEY:
1350 key_file = opt_arg();
1351 break;
1352 case OPT_RECONNECT:
0f113f3e 1353 reconnect = 5;
7e1b7485
RS		 1354 break;
1355 case OPT_CAPATH:
1356 CApath = opt_arg();
1357 break;
2b6bcb70
MC		 1358 case OPT_NOCAPATH:
1359 noCApath = 1;
1360 break;
7e1b7485
RS		 1361 case OPT_CHAINCAPATH:
1362 chCApath = opt_arg();
1363 break;
1364 case OPT_VERIFYCAPATH:
1365 vfyCApath = opt_arg();
1366 break;
1367 case OPT_BUILD_CHAIN:
0f113f3e 1368 build_chain = 1;
7e1b7485 1369 break;
d2add501
DSH		 1370 case OPT_REQCAFILE:
1371 ReqCAfile = opt_arg();
1372 break;
7e1b7485
RS		 1373 case OPT_CAFILE:
1374 CAfile = opt_arg();
1375 break;
2b6bcb70
MC		 1376 case OPT_NOCAFILE:
1377 noCAfile = 1;
1378 break;
dd696a55
RP		 1379#ifndef OPENSSL_NO_CT
1380 case OPT_NOCT:
43341433 1381 ct_validation = 0;
dd696a55 1382 break;
43341433
VD		 1383 case OPT_CT:
1384 ct_validation = 1;
dd696a55
RP		 1385 break;
1386 case OPT_CTLOG_FILE:
1387 ctlog_file = opt_arg();
1388 break;
1389#endif
7e1b7485
RS		 1390 case OPT_CHAINCAFILE:
1391 chCAfile = opt_arg();
1392 break;
1393 case OPT_VERIFYCAFILE:
1394 vfyCAfile = opt_arg();
1395 break;
cddd424a
VD		 1396 case OPT_DANE_TLSA_DOMAIN:
1397 dane_tlsa_domain = opt_arg();
1398 break;
1399 case OPT_DANE_TLSA_RRDATA:
1400 if (dane_tlsa_rrset == NULL)
1401 dane_tlsa_rrset = sk_OPENSSL_STRING_new_null();
1402 if (dane_tlsa_rrset == NULL ||
1403 !sk_OPENSSL_STRING_push(dane_tlsa_rrset, opt_arg())) {
1404 BIO_printf(bio_err, "%s: Memory allocation failure\n", prog);
1405 goto end;
1406 }
1407 break;
c4fbed6c
VD		 1408 case OPT_DANE_EE_NO_NAME:
1409 dane_ee_no_name = 1;
1410 break;
7e1b7485 1411 case OPT_NEXTPROTONEG:
1595ca02 1412#ifndef OPENSSL_NO_NEXTPROTONEG
7e1b7485 1413 next_proto_neg_in = opt_arg();
1595ca02 1414#endif
7e1b7485
RS		 1415 break;
1416 case OPT_ALPN:
1417 alpn_in = opt_arg();
1418 break;
1419 case OPT_SERVERINFO:
1420 p = opt_arg();
1421 len = strlen(p);
1422 for (start = 0, i = 0; i <= len; ++i) {
1423 if (i == len || p[i] == ',') {
1424 serverinfo_types[serverinfo_count] = atoi(p + start);
1425 if (++serverinfo_count == MAX_SI_TYPES)
1426 break;
0f113f3e
MC		 1427 start = i + 1;
1428 }
0f113f3e 1429 }
7e1b7485 1430 break;
7e1b7485
RS		 1431 case OPT_STARTTLS:
1432 if (!opt_pair(opt_arg(), services, &starttls_proto))
1433 goto end;
46da5f9c 1434 break;
7e1b7485
RS		 1435 case OPT_SERVERNAME:
1436 servername = opt_arg();
7e1b7485 1437 break;
11ba87f2
MC		 1438 case OPT_NOSERVERNAME:
1439 noservername = 1;
1440 break;
7e1b7485 1441 case OPT_USE_SRTP:
dad88680 1442#ifndef OPENSSL_NO_SRTP
7e1b7485 1443 srtp_profiles = opt_arg();
dad88680 1444#endif
7e1b7485
RS		 1445 break;
1446 case OPT_KEYMATEXPORT:
1447 keymatexportlabel = opt_arg();
1448 break;
1449 case OPT_KEYMATEXPORTLEN:
1450 keymatexportlen = atoi(opt_arg());
0f113f3e 1451 break;
7e25dd6d
MC		 1452 case OPT_ASYNC:
1453 async = 1;
1454 break;
cf72c757
F		 1455 case OPT_MAXFRAGLEN:
1456 len = atoi(opt_arg());
1457 switch (len) {
1458 case 512:
1459 maxfraglen = TLSEXT_max_fragment_length_512;
1460 break;
1461 case 1024:
1462 maxfraglen = TLSEXT_max_fragment_length_1024;
1463 break;
1464 case 2048:
1465 maxfraglen = TLSEXT_max_fragment_length_2048;
1466 break;
1467 case 4096:
1468 maxfraglen = TLSEXT_max_fragment_length_4096;
1469 break;
1470 default:
1471 BIO_printf(bio_err,
1472 "%s: Max Fragment Len %u is out of permitted values",
1473 prog, len);
1474 goto opthelp;
1475 }
1476 break;
28e5ea88
F		 1477 case OPT_MAX_SEND_FRAG:
1478 max_send_fragment = atoi(opt_arg());
28e5ea88 1479 break;
032c6d21
MC		 1480 case OPT_SPLIT_SEND_FRAG:
1481 split_send_fragment = atoi(opt_arg());
032c6d21
MC		 1482 break;
1483 case OPT_MAX_PIPELINES:
1484 max_pipelines = atoi(opt_arg());
1485 break;
dad78fb1
MC		 1486 case OPT_READ_BUF:
1487 read_buf_len = atoi(opt_arg());
1488 break;
4bf73e9f
PW		 1489 case OPT_KEYLOG_FILE:
1490 keylog_file = opt_arg();
1491 break;
923ac827
MC		 1492 case OPT_EARLY_DATA:
1493 early_data_file = opt_arg();
1494 break;
9d75dce3
TS		 1495 case OPT_FORCE_PHA:
1496 force_pha = 1;
1497 break;
0f113f3e 1498 }
0f113f3e 1499 }
fe08bd76
RS		 1500 if (count4or6 >= 2) {
1501 BIO_printf(bio_err, "%s: Can't use both -4 and -6\n", prog);
1502 goto opthelp;
1503 }
11ba87f2
MC		 1504 if (noservername) {
1505 if (servername != NULL) {
1506 BIO_printf(bio_err,
1507 "%s: Can't use -servername and -noservername together\n",
1508 prog);
1509 goto opthelp;
1510 }
1511 if (dane_tlsa_domain != NULL) {
1512 BIO_printf(bio_err,
1513 "%s: Can't use -dane_tlsa_domain and -noservername together\n",
1514 prog);
1515 goto opthelp;
1516 }
1517 }
7e1b7485 1518 argc = opt_num_rest();
729ef856
CB		 1519 if (argc == 1) {
1520 /* If there's a positional argument, it's the equivalent of
1521 * OPT_CONNECT.
1522 * Don't allow -connect and a separate argument.
1523 */
1524 if (connectstr != NULL) {
1525 BIO_printf(bio_err,
1526 "%s: must not provide both -connect option and target parameter\n",
1527 prog);
1528 goto opthelp;
1529 }
1530 connect_type = use_inet;
222417eb 1531 freeandcopy(&connectstr, *opt_rest());
729ef856 1532 } else if (argc != 0) {
03358517 1533 goto opthelp;
729ef856 1534 }
0f113f3e 1535
837f87c2
PY		 1536#ifndef OPENSSL_NO_NEXTPROTONEG
1537 if (min_version == TLS1_3_VERSION && next_proto_neg_in != NULL) {
1538 BIO_printf(bio_err, "Cannot supply -nextprotoneg with TLSv1.3\n");
1539 goto opthelp;
1540 }
1541#endif
2234212c 1542 if (proxystr != NULL) {
ab69ac00
RL		 1543 int res;
1544 char *tmp_host = host, *tmp_port = port;
552bf8ec 1545 if (connectstr == NULL) {
729ef856 1546 BIO_printf(bio_err, "%s: -proxy requires use of -connect or target parameter\n", prog);
552bf8ec
MT		 1547 goto opthelp;
1548 }
ab69ac00
RL		 1549 res = BIO_parse_hostserv(proxystr, &host, &port, BIO_PARSE_PRIO_HOST);
1550 if (tmp_host != host)
1551 OPENSSL_free(tmp_host);
1552 if (tmp_port != port)
1553 OPENSSL_free(tmp_port);
1554 if (!res) {
d6073e27
F		 1555 BIO_printf(bio_err,
1556 "%s: -proxy argument malformed or ambiguous\n", prog);
ab69ac00
RL		 1557 goto end;
1558 }
1559 } else {
1560 int res = 1;
1561 char *tmp_host = host, *tmp_port = port;
1562 if (connectstr != NULL)
1563 res = BIO_parse_hostserv(connectstr, &host, &port,
1564 BIO_PARSE_PRIO_HOST);
1565 if (tmp_host != host)
1566 OPENSSL_free(tmp_host);
1567 if (tmp_port != port)
1568 OPENSSL_free(tmp_port);
1569 if (!res) {
1570 BIO_printf(bio_err,
729ef856 1571 "%s: -connect argument or target parameter malformed or ambiguous\n",
ab69ac00 1572 prog);
552bf8ec 1573 goto end;
ab69ac00 1574 }
552bf8ec 1575 }
552bf8ec 1576
ebc01683
JH		 1577 if (bindstr != NULL) {
1578 int res;
1579 res = BIO_parse_hostserv(bindstr, &bindhost, &bindport,
1580 BIO_PARSE_PRIO_HOST);
1581 if (!res) {
1582 BIO_printf(bio_err,
1583 "%s: -bind argument parameter malformed or ambiguous\n",
1584 prog);
1585 goto end;
1586 }
1587 }
1588
326eaa94 1589#ifdef AF_UNIX
ab69ac00 1590 if (socket_family == AF_UNIX && socket_type != SOCK_STREAM) {
0f113f3e
MC		 1591 BIO_printf(bio_err,
1592 "Can't use unix sockets and datagrams together\n");
1593 goto end;
1594 }
326eaa94 1595#endif
f3b7bdad 1596
8ccc2377
MC		 1597#ifndef OPENSSL_NO_SCTP
1598 if (protocol == IPPROTO_SCTP) {
1599 if (socket_type != SOCK_DGRAM) {
1600 BIO_printf(bio_err, "Can't use -sctp without DTLS\n");
1601 goto end;
1602 }
1603 /* SCTP is unusual. It uses DTLS over a SOCK_STREAM protocol */
1604 socket_type = SOCK_STREAM;
1605 }
1606#endif
032c6d21 1607
e481f9b9 1608#if !defined(OPENSSL_NO_NEXTPROTONEG)
0f113f3e
MC		 1609 next_proto.status = -1;
1610 if (next_proto_neg_in) {
1611 next_proto.data =
1612 next_protos_parse(&next_proto.len, next_proto_neg_in);
1613 if (next_proto.data == NULL) {
1614 BIO_printf(bio_err, "Error parsing -nextprotoneg argument\n");
1615 goto end;
1616 }
1617 } else
1618 next_proto.data = NULL;
ee2ffc27
BL		 1619#endif
1620
7e1b7485 1621 if (!app_passwd(passarg, NULL, &pass, NULL)) {
0f113f3e
MC		 1622 BIO_printf(bio_err, "Error getting password\n");
1623 goto end;
1624 }
1625
1626 if (key_file == NULL)
1627 key_file = cert_file;
1628
2234212c 1629 if (key_file != NULL) {
7e1b7485 1630 key = load_key(key_file, key_format, 0, pass, e,
0f113f3e 1631 "client certificate private key file");
7e1b7485 1632 if (key == NULL) {
0f113f3e
MC		 1633 ERR_print_errors(bio_err);
1634 goto end;
1635 }
0f113f3e
MC		 1636 }
1637
2234212c 1638 if (cert_file != NULL) {
a773b52a 1639 cert = load_cert(cert_file, cert_format, "client certificate file");
7e1b7485 1640 if (cert == NULL) {
0f113f3e
MC		 1641 ERR_print_errors(bio_err);
1642 goto end;
1643 }
1644 }
1645
2234212c 1646 if (chain_file != NULL) {
a773b52a 1647 if (!load_certs(chain_file, &chain, FORMAT_PEM, NULL,
0996dc54 1648 "client certificate chain"))
0f113f3e
MC		 1649 goto end;
1650 }
1651
2234212c 1652 if (crl_file != NULL) {
0f113f3e
MC		 1653 X509_CRL *crl;
1654 crl = load_crl(crl_file, crl_format);
7e1b7485 1655 if (crl == NULL) {
0f113f3e
MC		 1656 BIO_puts(bio_err, "Error loading CRL\n");
1657 ERR_print_errors(bio_err);
1658 goto end;
1659 }
1660 crls = sk_X509_CRL_new_null();
7e1b7485 1661 if (crls == NULL || !sk_X509_CRL_push(crls, crl)) {
0f113f3e
MC		 1662 BIO_puts(bio_err, "Error adding CRL\n");
1663 ERR_print_errors(bio_err);
1664 X509_CRL_free(crl);
1665 goto end;
1666 }
1667 }
1668
7e1b7485 1669 if (!load_excert(&exc))
0f113f3e
MC		 1670 goto end;
1671
0f113f3e
MC		 1672 if (bio_c_out == NULL) {
1673 if (c_quiet && !c_debug) {
1674 bio_c_out = BIO_new(BIO_s_null());
2234212c 1675 if (c_msg && bio_c_msg == NULL)
a60994df 1676 bio_c_msg = dup_bio_out(FORMAT_TEXT);
7e1b7485 1677 } else if (bio_c_out == NULL)
a60994df 1678 bio_c_out = dup_bio_out(FORMAT_TEXT);
0f113f3e 1679 }
edc032b5 1680#ifndef OPENSSL_NO_SRP
7e1b7485 1681 if (!app_passwd(srppass, NULL, &srp_arg.srppassin, NULL)) {
0f113f3e
MC		 1682 BIO_printf(bio_err, "Error getting password\n");
1683 goto end;
1684 }
1685#endif
1686
1687 ctx = SSL_CTX_new(meth);
1688 if (ctx == NULL) {
1689 ERR_print_errors(bio_err);
1690 goto end;
1691 }
1692
693cf80c
KR		 1693 SSL_CTX_clear_mode(ctx, SSL_MODE_AUTO_RETRY);
1694
0f113f3e 1695 if (sdebug)
ecf3a1fb 1696 ssl_ctx_security_debug(ctx, sdebug);
0f113f3e 1697
8f8be103
RL		 1698 if (!config_ctx(cctx, ssl_args, ctx))
1699 goto end;
1700
2234212c 1701 if (ssl_config != NULL) {
287d0b94
DSH		 1702 if (SSL_CTX_config(ctx, ssl_config) == 0) {
1703 BIO_printf(bio_err, "Error using configuration \"%s\"\n",
1704 ssl_config);
d6073e27
F		 1705 ERR_print_errors(bio_err);
1706 goto end;
287d0b94
DSH		 1707 }
1708 }
1709
8f8be103
RL		 1710 if (min_version != 0
1711 && SSL_CTX_set_min_proto_version(ctx, min_version) == 0)
0d5301af 1712 goto end;
8f8be103
RL		 1713 if (max_version != 0
1714 && SSL_CTX_set_max_proto_version(ctx, max_version) == 0)
0d5301af
KR		 1715 goto end;
1716
7e1b7485 1717 if (vpmtouched && !SSL_CTX_set1_param(ctx, vpm)) {
ac59d705
MC		 1718 BIO_printf(bio_err, "Error setting verify params\n");
1719 ERR_print_errors(bio_err);
1720 goto end;
1721 }
0f113f3e 1722
5e6f9775 1723 if (async) {
7e25dd6d 1724 SSL_CTX_set_mode(ctx, SSL_MODE_ASYNC);
5e6f9775 1725 }
28e5ea88 1726
36b2cfb1
F		 1727 if (max_send_fragment > 0
1728 && !SSL_CTX_set_max_send_fragment(ctx, max_send_fragment)) {
1729 BIO_printf(bio_err, "%s: Max send fragment size %u is out of permitted range\n",
1730 prog, max_send_fragment);
1731 goto end;
1732 }
28e5ea88 1733
36b2cfb1
F		 1734 if (split_send_fragment > 0
1735 && !SSL_CTX_set_split_send_fragment(ctx, split_send_fragment)) {
1736 BIO_printf(bio_err, "%s: Split send fragment size %u is out of permitted range\n",
1737 prog, split_send_fragment);
1738 goto end;
032c6d21 1739 }
36b2cfb1
F		 1740
1741 if (max_pipelines > 0
1742 && !SSL_CTX_set_max_pipelines(ctx, max_pipelines)) {
1743 BIO_printf(bio_err, "%s: Max pipelines %u is out of permitted range\n",
1744 prog, max_pipelines);
1745 goto end;
032c6d21 1746 }
7e25dd6d 1747
dad78fb1
MC		 1748 if (read_buf_len > 0) {
1749 SSL_CTX_set_default_read_buffer_len(ctx, read_buf_len);
1750 }
1751
cf72c757
F		 1752 if (maxfraglen > 0
1753 && !SSL_CTX_set_tlsext_max_fragment_length(ctx, maxfraglen)) {
1754 BIO_printf(bio_err,
1755 "%s: Max Fragment Length code %u is out of permitted values"
1756 "\n", prog, maxfraglen);
1757 goto end;
1758 }
1759
0f113f3e
MC		 1760 if (!ssl_load_stores(ctx, vfyCApath, vfyCAfile, chCApath, chCAfile,
1761 crls, crl_download)) {
1762 BIO_printf(bio_err, "Error loading store locations\n");
1763 ERR_print_errors(bio_err);
1764 goto end;
1765 }
d2add501
DSH		 1766 if (ReqCAfile != NULL) {
1767 STACK_OF(X509_NAME) *nm = sk_X509_NAME_new_null();
5969a2dd 1768
d2add501
DSH		 1769 if (nm == NULL || !SSL_add_file_cert_subjects_to_stack(nm, ReqCAfile)) {
1770 sk_X509_NAME_pop_free(nm, X509_NAME_free);
1771 BIO_printf(bio_err, "Error loading CA names\n");
1772 ERR_print_errors(bio_err);
1773 goto end;
1774 }
1775 SSL_CTX_set0_CA_list(ctx, nm);
1776 }
59d2d48f 1777#ifndef OPENSSL_NO_ENGINE
0f113f3e
MC		 1778 if (ssl_client_engine) {
1779 if (!SSL_CTX_set_client_cert_engine(ctx, ssl_client_engine)) {
1780 BIO_puts(bio_err, "Error setting client auth engine\n");
1781 ERR_print_errors(bio_err);
1782 ENGINE_free(ssl_client_engine);
1783 goto end;
1784 }
1785 ENGINE_free(ssl_client_engine);
1786 }
59d2d48f
DSH		 1787#endif
1788
ddac1974 1789#ifndef OPENSSL_NO_PSK
dba31777 1790 if (psk_key != NULL) {
0f113f3e 1791 if (c_debug)
d6073e27 1792 BIO_printf(bio_c_out, "PSK key given, setting client callback\n");
0f113f3e
MC		 1793 SSL_CTX_set_psk_client_callback(ctx, psk_client_cb);
1794 }
e783bae2 1795#endif
e261bdd1
MC		 1796 if (psksessf != NULL) {
1797 BIO *stmp = BIO_new_file(psksessf, "r");
1798
1799 if (stmp == NULL) {
1800 BIO_printf(bio_err, "Can't open PSK session file %s\n", psksessf);
1801 ERR_print_errors(bio_err);
1802 goto end;
1803 }
1804 psksess = PEM_read_bio_SSL_SESSION(stmp, NULL, 0, NULL);
1805 BIO_free(stmp);
1806 if (psksess == NULL) {
1807 BIO_printf(bio_err, "Can't read PSK session file %s\n", psksessf);
1808 ERR_print_errors(bio_err);
1809 goto end;
1810 }
e261bdd1 1811 }
5ffff599
MC		 1812 if (psk_key != NULL || psksess != NULL)
1813 SSL_CTX_set_psk_use_session_callback(ctx, psk_use_session_cb);
1814
e783bae2 1815#ifndef OPENSSL_NO_SRTP
ac59d705 1816 if (srtp_profiles != NULL) {
7e1b7485
RS		 1817 /* Returns 0 on success! */
1818 if (SSL_CTX_set_tlsext_use_srtp(ctx, srtp_profiles) != 0) {
ac59d705
MC		 1819 BIO_printf(bio_err, "Error setting SRTP profile\n");
1820 ERR_print_errors(bio_err);
1821 goto end;
1822 }
1823 }
0f113f3e 1824#endif
7e1b7485 1825
2234212c 1826 if (exc != NULL)
0f113f3e 1827 ssl_ctx_set_excert(ctx, exc);
d02b48c6 1828
e481f9b9 1829#if !defined(OPENSSL_NO_NEXTPROTONEG)
2234212c 1830 if (next_proto.data != NULL)
0f113f3e 1831 SSL_CTX_set_next_proto_select_cb(ctx, next_proto_cb, &next_proto);
e481f9b9 1832#endif
0f113f3e 1833 if (alpn_in) {
817cd0d5 1834 size_t alpn_len;
0f113f3e
MC		 1835 unsigned char *alpn = next_protos_parse(&alpn_len, alpn_in);
1836
1837 if (alpn == NULL) {
1838 BIO_printf(bio_err, "Error parsing -alpn argument\n");
1839 goto end;
1840 }
7e1b7485
RS		 1841 /* Returns 0 on success! */
1842 if (SSL_CTX_set_alpn_protos(ctx, alpn, alpn_len) != 0) {
d6073e27 1843 BIO_printf(bio_err, "Error setting ALPN\n");
ac59d705
MC		 1844 goto end;
1845 }
0f113f3e
MC		 1846 OPENSSL_free(alpn);
1847 }
e481f9b9 1848
7e1b7485 1849 for (i = 0; i < serverinfo_count; i++) {
61986d32 1850 if (!SSL_CTX_add_client_custom_ext(ctx,
7e1b7485
RS		 1851 serverinfo_types[i],
1852 NULL, NULL, NULL,
1853 serverinfo_cli_parse_cb, NULL)) {
1854 BIO_printf(bio_err,
d6073e27
F		 1855 "Warning: Unable to add custom extension %u, skipping\n",
1856 serverinfo_types[i]);
ac59d705 1857 }
0f113f3e 1858 }
ee2ffc27 1859
0f113f3e
MC		 1860 if (state)
1861 SSL_CTX_set_info_callback(ctx, apps_ssl_info_callback);
d02b48c6 1862
dd696a55 1863#ifndef OPENSSL_NO_CT
43341433
VD		 1864 /* Enable SCT processing, without early connection termination */
1865 if (ct_validation &&
1866 !SSL_CTX_enable_ct(ctx, SSL_CT_VALIDATION_PERMISSIVE)) {
dd696a55
RP		 1867 ERR_print_errors(bio_err);
1868 goto end;
1869 }
1870
70073f3e 1871 if (!ctx_set_ctlog_list_file(ctx, ctlog_file)) {
43341433 1872 if (ct_validation) {
328f36c5
RP		 1873 ERR_print_errors(bio_err);
1874 goto end;
1875 }
1876
1877 /*
1878 * If CT validation is not enabled, the log list isn't needed so don't
1879 * show errors or abort. We try to load it regardless because then we
1880 * can show the names of the logs any SCTs came from (SCTs may be seen
1881 * even with validation disabled).
1882 */
1883 ERR_clear_error();
dd696a55
RP		 1884 }
1885#endif
1886
0f113f3e 1887 SSL_CTX_set_verify(ctx, verify, verify_callback);
d02b48c6 1888
2b6bcb70 1889 if (!ctx_set_verify_locations(ctx, CAfile, CApath, noCAfile, noCApath)) {
0f113f3e 1890 ERR_print_errors(bio_err);
7e1b7485 1891 goto end;
0f113f3e 1892 }
d02b48c6 1893
0f113f3e 1894 ssl_ctx_add_crls(ctx, crls, crl_download);
fdb78f3d 1895
0f113f3e
MC		 1896 if (!set_cert_key_stuff(ctx, cert, key, chain, build_chain))
1897 goto end;
74ecfab4 1898
11ba87f2 1899 if (!noservername) {
0f113f3e
MC		 1900 tlsextcbp.biodebug = bio_err;
1901 SSL_CTX_set_tlsext_servername_callback(ctx, ssl_servername_cb);
1902 SSL_CTX_set_tlsext_servername_arg(ctx, &tlsextcbp);
1903 }
1904# ifndef OPENSSL_NO_SRP
1905 if (srp_arg.srplogin) {
1906 if (!srp_lateuser && !SSL_CTX_set_srp_username(ctx, srp_arg.srplogin)) {
1907 BIO_printf(bio_err, "Unable to set SRP username\n");
1908 goto end;
1909 }
1910 srp_arg.msg = c_msg;
1911 srp_arg.debug = c_debug;
1912 SSL_CTX_set_srp_cb_arg(ctx, &srp_arg);
1913 SSL_CTX_set_srp_client_pwd_callback(ctx, ssl_give_srp_client_pwd_cb);
1914 SSL_CTX_set_srp_strength(ctx, srp_arg.strength);
1915 if (c_msg || c_debug || srp_arg.amp == 0)
1916 SSL_CTX_set_srp_verify_param_callback(ctx,
1917 ssl_srp_verify_param_cb);
1918 }
1919# endif
0f113f3e 1920
cddd424a
VD		 1921 if (dane_tlsa_domain != NULL) {
1922 if (SSL_CTX_dane_enable(ctx) <= 0) {
1923 BIO_printf(bio_err,
d6073e27
F		 1924 "%s: Error enabling DANE TLSA authentication.\n",
1925 prog);
cddd424a
VD		 1926 ERR_print_errors(bio_err);
1927 goto end;
1928 }
1929 }
1930
be62b22b
MC		 1931 /*
1932 * In TLSv1.3 NewSessionTicket messages arrive after the handshake and can
1933 * come at any time. Therefore we use a callback to write out the session
1934 * when we know about it. This approach works for < TLSv1.3 as well.
1935 */
20c0bce5
MC		 1936 SSL_CTX_set_session_cache_mode(ctx, SSL_SESS_CACHE_CLIENT
1937 | SSL_SESS_CACHE_NO_INTERNAL_STORE);
1938 SSL_CTX_sess_set_new_cb(ctx, new_session_cb);
be62b22b 1939
4bf73e9f
PW		 1940 if (set_keylog_file(ctx, keylog_file))
1941 goto end;
1942
0f113f3e 1943 con = SSL_new(ctx);
f84a648c
K		 1944 if (con == NULL)
1945 goto end;
1946
9d75dce3
TS		 1947 if (force_pha)
1948 SSL_force_post_handshake_auth(con);
1949
2234212c 1950 if (sess_in != NULL) {
0f113f3e
MC		 1951 SSL_SESSION *sess;
1952 BIO *stmp = BIO_new_file(sess_in, "r");
2234212c 1953 if (stmp == NULL) {
0f113f3e
MC		 1954 BIO_printf(bio_err, "Can't open session file %s\n", sess_in);
1955 ERR_print_errors(bio_err);
1956 goto end;
1957 }
1958 sess = PEM_read_bio_SSL_SESSION(stmp, NULL, 0, NULL);
1959 BIO_free(stmp);
2234212c 1960 if (sess == NULL) {
0f113f3e
MC		 1961 BIO_printf(bio_err, "Can't open session file %s\n", sess_in);
1962 ERR_print_errors(bio_err);
1963 goto end;
1964 }
61986d32 1965 if (!SSL_set_session(con, sess)) {
ac59d705
MC		 1966 BIO_printf(bio_err, "Can't set session\n");
1967 ERR_print_errors(bio_err);
1968 goto end;
1969 }
b510b740 1970
0f113f3e
MC		 1971 SSL_SESSION_free(sess);
1972 }
1973
1974 if (fallback_scsv)
1975 SSL_set_mode(con, SSL_MODE_SEND_FALLBACK_SCSV);
cf6da053 1976
11ba87f2
MC		 1977 if (!noservername && (servername != NULL || dane_tlsa_domain == NULL)) {
1978 if (servername == NULL)
1979 servername = (host == NULL) ? "localhost" : host;
0f113f3e
MC		 1980 if (!SSL_set_tlsext_host_name(con, servername)) {
1981 BIO_printf(bio_err, "Unable to set TLS servername extension.\n");
1982 ERR_print_errors(bio_err);
1983 goto end;
1984 }
1985 }
d02b48c6 1986
cddd424a
VD		 1987 if (dane_tlsa_domain != NULL) {
1988 if (SSL_dane_enable(con, dane_tlsa_domain) <= 0) {
1989 BIO_printf(bio_err, "%s: Error enabling DANE TLSA "
1990 "authentication.\n", prog);
1991 ERR_print_errors(bio_err);
1992 goto end;
1993 }
1994 if (dane_tlsa_rrset == NULL) {
1995 BIO_printf(bio_err, "%s: DANE TLSA authentication requires at "
bc87fb6b 1996 "least one -dane_tlsa_rrdata option.\n", prog);
cddd424a
VD		 1997 goto end;
1998 }
1999 if (tlsa_import_rrset(con, dane_tlsa_rrset) <= 0) {
2000 BIO_printf(bio_err, "%s: Failed to import any TLSA "
2001 "records.\n", prog);
2002 goto end;
2003 }
c4fbed6c
VD		 2004 if (dane_ee_no_name)
2005 SSL_dane_set_flags(con, DANE_FLAG_NO_DANE_EE_NAMECHECKS);
cddd424a 2006 } else if (dane_tlsa_rrset != NULL) {
bde136c8
F		 2007 BIO_printf(bio_err, "%s: DANE TLSA authentication requires the "
2008 "-dane_tlsa_domain option.\n", prog);
2009 goto end;
cddd424a
VD		 2010 }
2011
0f113f3e 2012 re_start:
ebc01683
JH		 2013 if (init_client(&s, host, port, bindhost, bindport, socket_family,
2014 socket_type, protocol) == 0) {
0f113f3e 2015 BIO_printf(bio_err, "connect:errno=%d\n", get_last_socket_error());
8731a4fc 2016 BIO_closesocket(s);
0f113f3e
MC		 2017 goto end;
2018 }
2019 BIO_printf(bio_c_out, "CONNECTED(%08X)\n", s);
d02b48c6 2020
0f113f3e 2021 if (c_nbio) {
ba810815 2022 if (!BIO_socket_nbio(s, 1)) {
0f113f3e
MC		 2023 ERR_print_errors(bio_err);
2024 goto end;
2025 }
ba810815 2026 BIO_printf(bio_c_out, "Turned on non blocking io\n");
0f113f3e 2027 }
40a8e9c2 2028#ifndef OPENSSL_NO_DTLS
8ccc2377 2029 if (isdtls) {
642a166c 2030 union BIO_sock_info_u peer_info;
0f113f3e 2031
8ccc2377
MC		 2032#ifndef OPENSSL_NO_SCTP
2033 if (protocol == IPPROTO_SCTP)
2034 sbio = BIO_new_dgram_sctp(s, BIO_NOCLOSE);
2035 else
2036#endif
2037 sbio = BIO_new_dgram(s, BIO_NOCLOSE);
2038
642a166c
RL		 2039 if ((peer_info.addr = BIO_ADDR_new()) == NULL) {
2040 BIO_printf(bio_err, "memory allocation failure\n");
2041 BIO_closesocket(s);
d6accd50 2042 goto end;
642a166c
RL		 2043 }
2044 if (!BIO_sock_info(s, BIO_SOCK_INFO_ADDRESS, &peer_info)) {
0f113f3e
MC		 2045 BIO_printf(bio_err, "getsockname:errno=%d\n",
2046 get_last_socket_error());
642a166c 2047 BIO_ADDR_free(peer_info.addr);
8731a4fc 2048 BIO_closesocket(s);
0f113f3e
MC		 2049 goto end;
2050 }
2051
642a166c
RL		 2052 (void)BIO_ctrl_set_connected(sbio, peer_info.addr);
2053 BIO_ADDR_free(peer_info.addr);
2054 peer_info.addr = NULL;
0f113f3e
MC		 2055
2056 if (enable_timeouts) {
2057 timeout.tv_sec = 0;
2058 timeout.tv_usec = DGRAM_RCV_TIMEOUT;
2059 BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_RECV_TIMEOUT, 0, &timeout);
2060
2061 timeout.tv_sec = 0;
2062 timeout.tv_usec = DGRAM_SND_TIMEOUT;
2063 BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_SEND_TIMEOUT, 0, &timeout);
2064 }
2065
2066 if (socket_mtu) {
2067 if (socket_mtu < DTLS_get_link_min_mtu(con)) {
2068 BIO_printf(bio_err, "MTU too small. Must be at least %ld\n",
2069 DTLS_get_link_min_mtu(con));
2070 BIO_free(sbio);
2071 goto shut;
2072 }
2073 SSL_set_options(con, SSL_OP_NO_QUERY_MTU);
2074 if (!DTLS_set_link_mtu(con, socket_mtu)) {
2075 BIO_printf(bio_err, "Failed to set MTU\n");
2076 BIO_free(sbio);
2077 goto shut;
2078 }
2234212c 2079 } else {
0f113f3e
MC		 2080 /* want to do MTU discovery */
2081 BIO_ctrl(sbio, BIO_CTRL_DGRAM_MTU_DISCOVER, 0, NULL);
2234212c 2082 }
0f113f3e 2083 } else
40a8e9c2 2084#endif /* OPENSSL_NO_DTLS */
0f113f3e
MC		 2085 sbio = BIO_new_socket(s, BIO_NOCLOSE);
2086
2087 if (nbio_test) {
2088 BIO *test;
2089
2090 test = BIO_new(BIO_f_nbio_test());
2091 sbio = BIO_push(test, sbio);
2092 }
2093
2094 if (c_debug) {
0f113f3e
MC		 2095 BIO_set_callback(sbio, bio_dump_callback);
2096 BIO_set_callback_arg(sbio, (char *)bio_c_out);
2097 }
2098 if (c_msg) {
93ab9e42 2099#ifndef OPENSSL_NO_SSL_TRACE
0f113f3e
MC		 2100 if (c_msg == 2)
2101 SSL_set_msg_callback(con, SSL_trace);
2102 else
93ab9e42 2103#endif
0f113f3e
MC		 2104 SSL_set_msg_callback(con, msg_cb);
2105 SSL_set_msg_callback_arg(con, bio_c_msg ? bio_c_msg : bio_c_out);
2106 }
e481f9b9 2107
0f113f3e
MC		 2108 if (c_tlsextdebug) {
2109 SSL_set_tlsext_debug_callback(con, tlsext_cb);
2110 SSL_set_tlsext_debug_arg(con, bio_c_out);
2111 }
3e41ac35 2112#ifndef OPENSSL_NO_OCSP
0f113f3e
MC		 2113 if (c_status_req) {
2114 SSL_set_tlsext_status_type(con, TLSEXT_STATUSTYPE_ocsp);
2115 SSL_CTX_set_tlsext_status_cb(ctx, ocsp_resp_cb);
2116 SSL_CTX_set_tlsext_status_arg(ctx, bio_c_out);
0f113f3e 2117 }
3e41ac35 2118#endif
0f113f3e
MC		 2119
2120 SSL_set_bio(con, sbio, sbio);
2121 SSL_set_connect_state(con);
2122
2123 /* ok, lets connect */
51e5133d
RL		 2124 if (fileno_stdin() > SSL_get_fd(con))
2125 width = fileno_stdin() + 1;
0d3b6583
RL		 2126 else
2127 width = SSL_get_fd(con) + 1;
51e5133d 2128
0f113f3e
MC		 2129 read_tty = 1;
2130 write_tty = 0;
2131 tty_on = 0;
2132 read_ssl = 1;
2133 write_ssl = 1;
2134
2135 cbuf_len = 0;
2136 cbuf_off = 0;
2137 sbuf_len = 0;
2138 sbuf_off = 0;
2139
7e1b7485
RS		 2140 switch ((PROTOCOL_CHOICE) starttls_proto) {
2141 case PROTO_OFF:
2142 break;
9576545a 2143 case PROTO_LMTP:
7e1b7485
RS		 2144 case PROTO_SMTP:
2145 {
2146 /*
2147 * This is an ugly hack that does a lot of assumptions. We do
2148 * have to handle multi-line responses which may come in a single
2149 * packet or not. We therefore have to use BIO_gets() which does
2150 * need a buffering BIO. So during the initial chitchat we do
2151 * push a buffering BIO into the chain that is removed again
2152 * later on to not disturb the rest of the s_client operation.
2153 */
2154 int foundit = 0;
2155 BIO *fbio = BIO_new(BIO_f_buffer());
20967afb 2156
7e1b7485 2157 BIO_push(fbio, sbio);
9576545a 2158 /* Wait for multi-line response to end from LMTP or SMTP */
7e1b7485
RS		 2159 do {
2160 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
20967afb 2161 } while (mbuf_len > 3 && mbuf[3] == '-');
8176431d
PY		 2162 if (protohost == NULL)
2163 protohost = "mail.example.com";
7524c520 2164 if (starttls_proto == (int)PROTO_LMTP)
8176431d 2165 BIO_printf(fbio, "LHLO %s\r\n", protohost);
7524c520 2166 else
8176431d 2167 BIO_printf(fbio, "EHLO %s\r\n", protohost);
7e1b7485 2168 (void)BIO_flush(fbio);
9576545a
RS		 2169 /*
2170 * Wait for multi-line response to end LHLO LMTP or EHLO SMTP
2171 * response.
2172 */
7e1b7485
RS		 2173 do {
2174 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2175 if (strstr(mbuf, "STARTTLS"))
2176 foundit = 1;
20967afb 2177 } while (mbuf_len > 3 && mbuf[3] == '-');
7e1b7485
RS		 2178 (void)BIO_flush(fbio);
2179 BIO_pop(fbio);
2180 BIO_free(fbio);
2181 if (!foundit)
2182 BIO_printf(bio_err,
20967afb 2183 "Didn't find STARTTLS in server response,"
c7944cf1 2184 " trying anyway...\n");
7e1b7485
RS		 2185 BIO_printf(sbio, "STARTTLS\r\n");
2186 BIO_read(sbio, sbuf, BUFSIZZ);
0f113f3e 2187 }
7e1b7485
RS		 2188 break;
2189 case PROTO_POP3:
2190 {
2191 BIO_read(sbio, mbuf, BUFSIZZ);
2192 BIO_printf(sbio, "STLS\r\n");
2193 mbuf_len = BIO_read(sbio, sbuf, BUFSIZZ);
2194 if (mbuf_len < 0) {
2195 BIO_printf(bio_err, "BIO_read failed\n");
2196 goto end;
2197 }
0f113f3e 2198 }
7e1b7485
RS		 2199 break;
2200 case PROTO_IMAP:
2201 {
2202 int foundit = 0;
2203 BIO *fbio = BIO_new(BIO_f_buffer());
20967afb 2204
7e1b7485
RS		 2205 BIO_push(fbio, sbio);
2206 BIO_gets(fbio, mbuf, BUFSIZZ);
2207 /* STARTTLS command requires CAPABILITY... */
2208 BIO_printf(fbio, ". CAPABILITY\r\n");
2209 (void)BIO_flush(fbio);
2210 /* wait for multi-line CAPABILITY response */
2211 do {
2212 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2213 if (strstr(mbuf, "STARTTLS"))
2214 foundit = 1;
2215 }
2216 while (mbuf_len > 3 && mbuf[0] != '.');
2217 (void)BIO_flush(fbio);
2218 BIO_pop(fbio);
2219 BIO_free(fbio);
2220 if (!foundit)
2221 BIO_printf(bio_err,
20967afb 2222 "Didn't find STARTTLS in server response,"
c7944cf1 2223 " trying anyway...\n");
7e1b7485
RS		 2224 BIO_printf(sbio, ". STARTTLS\r\n");
2225 BIO_read(sbio, sbuf, BUFSIZZ);
0f113f3e 2226 }
7e1b7485
RS		 2227 break;
2228 case PROTO_FTP:
2229 {
2230 BIO *fbio = BIO_new(BIO_f_buffer());
20967afb 2231
7e1b7485
RS		 2232 BIO_push(fbio, sbio);
2233 /* wait for multi-line response to end from FTP */
2234 do {
2235 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2236 }
2237 while (mbuf_len > 3 && mbuf[3] == '-');
2238 (void)BIO_flush(fbio);
2239 BIO_pop(fbio);
2240 BIO_free(fbio);
2241 BIO_printf(sbio, "AUTH TLS\r\n");
2242 BIO_read(sbio, sbuf, BUFSIZZ);
0f113f3e 2243 }
7e1b7485
RS		 2244 break;
2245 case PROTO_XMPP:
898ea7b8 2246 case PROTO_XMPP_SERVER:
0f113f3e 2247 {
7e1b7485
RS		 2248 int seen = 0;
2249 BIO_printf(sbio, "<stream:stream "
2250 "xmlns:stream='http://etherx.jabber.org/streams' "
898ea7b8
KE		 2251 "xmlns='jabber:%s' to='%s' version='1.0'>",
2252 starttls_proto == PROTO_XMPP ? "client" : "server",
8176431d 2253 protohost ? protohost : host);
0f113f3e 2254 seen = BIO_read(sbio, mbuf, BUFSIZZ);
20967afb
RS		 2255 if (seen < 0) {
2256 BIO_printf(bio_err, "BIO_read failed\n");
2257 goto end;
2258 }
2259 mbuf[seen] = '\0';
7e1b7485
RS		 2260 while (!strstr
2261 (mbuf, "<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'")
2262 && !strstr(mbuf,
2263 "<starttls xmlns=\"urn:ietf:params:xml:ns:xmpp-tls\""))
2264 {
2265 seen = BIO_read(sbio, mbuf, BUFSIZZ);
0f113f3e 2266
7e1b7485
RS		 2267 if (seen <= 0)
2268 goto shut;
0f113f3e 2269
20967afb 2270 mbuf[seen] = '\0';
7e1b7485
RS		 2271 }
2272 BIO_printf(sbio,
2273 "<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'/>");
2274 seen = BIO_read(sbio, sbuf, BUFSIZZ);
20967afb
RS		 2275 if (seen < 0) {
2276 BIO_printf(bio_err, "BIO_read failed\n");
2277 goto shut;
2278 }
2279 sbuf[seen] = '\0';
7e1b7485
RS		 2280 if (!strstr(sbuf, "<proceed"))
2281 goto shut;
20967afb 2282 mbuf[0] = '\0';
0f113f3e 2283 }
7e1b7485 2284 break;
d8c25de5
RS		 2285 case PROTO_TELNET:
2286 {
2287 static const unsigned char tls_do[] = {
2288 /* IAC DO START_TLS */
2289 255, 253, 46
2290 };
2291 static const unsigned char tls_will[] = {
2292 /* IAC WILL START_TLS */
2293 255, 251, 46
2294 };
2295 static const unsigned char tls_follows[] = {
2296 /* IAC SB START_TLS FOLLOWS IAC SE */
2297 255, 250, 46, 1, 255, 240
2298 };
2299 int bytes;
2300
2301 /* Telnet server should demand we issue START_TLS */
2302 bytes = BIO_read(sbio, mbuf, BUFSIZZ);
2303 if (bytes != 3 || memcmp(mbuf, tls_do, 3) != 0)
2304 goto shut;
2305 /* Agree to issue START_TLS and send the FOLLOWS sub-command */
2306 BIO_write(sbio, tls_will, 3);
2307 BIO_write(sbio, tls_follows, 6);
2308 (void)BIO_flush(sbio);
2309 /* Telnet server also sent the FOLLOWS sub-command */
2310 bytes = BIO_read(sbio, mbuf, BUFSIZZ);
2311 if (bytes != 6 || memcmp(mbuf, tls_follows, 6) != 0)
2312 goto shut;
2313 }
552bf8ec
MT		 2314 break;
2315 case PROTO_CONNECT:
2316 {
ec2a0e60
RL		 2317 enum {
2318 error_proto, /* Wrong protocol, not even HTTP */
2319 error_connect, /* CONNECT failed */
2320 success
2321 } foundit = error_connect;
552bf8ec
MT		 2322 BIO *fbio = BIO_new(BIO_f_buffer());
2323
2324 BIO_push(fbio, sbio);
8230f6c7 2325 BIO_printf(fbio, "CONNECT %s HTTP/1.0\r\n\r\n", connectstr);
552bf8ec 2326 (void)BIO_flush(fbio);
ec2a0e60
RL		 2327 /*
2328 * The first line is the HTTP response. According to RFC 7230,
2329 * it's formated exactly like this:
2330 *
2331 * HTTP/d.d ddd Reason text\r\n
2332 */
2333 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
3dce1099
RS		 2334 if (mbuf_len < (int)strlen("HTTP/1.0 200")) {
2335 BIO_printf(bio_err,
2336 "%s: HTTP CONNECT failed, insufficient response "
2337 "from proxy (got %d octets)\n", prog, mbuf_len);
2338 (void)BIO_flush(fbio);
2339 BIO_pop(fbio);
2340 BIO_free(fbio);
2341 goto shut;
2342 }
ec2a0e60
RL		 2343 if (mbuf[8] != ' ') {
2344 BIO_printf(bio_err,
2345 "%s: HTTP CONNECT failed, incorrect response "
2346 "from proxy\n", prog);
2347 foundit = error_proto;
2348 } else if (mbuf[9] != '2') {
2349 BIO_printf(bio_err, "%s: HTTP CONNECT failed: %s ", prog,
2350 &mbuf[9]);
2351 } else {
2352 foundit = success;
2353 }
2354 if (foundit != error_proto) {
2355 /* Read past all following headers */
2356 do {
2357 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2358 } while (mbuf_len > 2);
2359 }
552bf8ec
MT		 2360 (void)BIO_flush(fbio);
2361 BIO_pop(fbio);
2362 BIO_free(fbio);
ec2a0e60 2363 if (foundit != success) {
552bf8ec
MT		 2364 goto shut;
2365 }
2366 }
2367 break;
cfb4f1ef
NPB		 2368 case PROTO_IRC:
2369 {
2370 int numeric;
2371 BIO *fbio = BIO_new(BIO_f_buffer());
2372
2373 BIO_push(fbio, sbio);
2374 BIO_printf(fbio, "STARTTLS\r\n");
2375 (void)BIO_flush(fbio);
2376 width = SSL_get_fd(con) + 1;
2377
2378 do {
2379 numeric = 0;
2380
2381 FD_ZERO(&readfds);
2382 openssl_fdset(SSL_get_fd(con), &readfds);
2383 timeout.tv_sec = S_CLIENT_IRC_READ_TIMEOUT;
2384 timeout.tv_usec = 0;
2385 /*
2386 * If the IRCd doesn't respond within
2387 * S_CLIENT_IRC_READ_TIMEOUT seconds, assume
2388 * it doesn't support STARTTLS. Many IRCds
2389 * will not give _any_ sort of response to a
2390 * STARTTLS command when it's not supported.
2391 */
2392 if (!BIO_get_buffer_num_lines(fbio)
2393 && !BIO_pending(fbio)
2394 && !BIO_pending(sbio)
2395 && select(width, (void *)&readfds, NULL, NULL,
2396 &timeout) < 1) {
2397 BIO_printf(bio_err,
2398 "Timeout waiting for response (%d seconds).\n",
2399 S_CLIENT_IRC_READ_TIMEOUT);
2400 break;
2401 }
2402
2403 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2404 if (mbuf_len < 1 || sscanf(mbuf, "%*s %d", &numeric) != 1)
2405 break;
2406 /* :example.net 451 STARTTLS :You have not registered */
2407 /* :example.net 421 STARTTLS :Unknown command */
2408 if ((numeric == 451 || numeric == 421)
2409 && strstr(mbuf, "STARTTLS") != NULL) {
2410 BIO_printf(bio_err, "STARTTLS not supported: %s", mbuf);
2411 break;
2412 }
2413 if (numeric == 691) {
2414 BIO_printf(bio_err, "STARTTLS negotiation failed: ");
2415 ERR_print_errors(bio_err);
2416 break;
2417 }
2418 } while (numeric != 670);
2419
2420 (void)BIO_flush(fbio);
2421 BIO_pop(fbio);
2422 BIO_free(fbio);
2423 if (numeric != 670) {
2424 BIO_printf(bio_err, "Server does not support STARTTLS.\n");
2425 ret = 1;
2426 goto shut;
2427 }
2428 }
b2e54eb8 2429 break;
a2d9cfba
KT		 2430 case PROTO_MYSQL:
2431 {
2432 /* SSL request packet */
2433 static const unsigned char ssl_req[] = {
2434 /* payload_length, sequence_id */
2435 0x20, 0x00, 0x00, 0x01,
2436 /* payload */
2437 /* capability flags, CLIENT_SSL always set */
2438 0x85, 0xae, 0x7f, 0x00,
2439 /* max-packet size */
2440 0x00, 0x00, 0x00, 0x01,
2441 /* character set */
2442 0x21,
2443 /* string[23] reserved (all [0]) */
2444 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
2445 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
2446 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
2447 };
2448 int bytes = 0;
2449 int ssl_flg = 0x800;
2450 int pos;
2451 const unsigned char *packet = (const unsigned char *)sbuf;
2452
2453 /* Receiving Initial Handshake packet. */
2454 bytes = BIO_read(sbio, (void *)packet, BUFSIZZ);
2455 if (bytes < 0) {
2456 BIO_printf(bio_err, "BIO_read failed\n");
2457 goto shut;
2458 /* Packet length[3], Packet number[1] + minimum payload[17] */
2459 } else if (bytes < 21) {
2460 BIO_printf(bio_err, "MySQL packet too short.\n");
2461 goto shut;
2462 } else if (bytes != (4 + packet[0] +
2463 (packet[1] << 8) +
2464 (packet[2] << 16))) {
2465 BIO_printf(bio_err, "MySQL packet length does not match.\n");
2466 goto shut;
2467 /* protocol version[1] */
2468 } else if (packet[4] != 0xA) {
2469 BIO_printf(bio_err,
2470 "Only MySQL protocol version 10 is supported.\n");
2471 goto shut;
2472 }
2473
2474 pos = 5;
2475 /* server version[string+NULL] */
2476 for (;;) {
2477 if (pos >= bytes) {
2478 BIO_printf(bio_err, "Cannot confirm server version. ");
2479 goto shut;
2480 } else if (packet[pos++] == '\0') {
2481 break;
2482 }
a2d9cfba
KT		 2483 }
2484
8530039a 2485 /* make sure we have at least 15 bytes left in the packet */
a2d9cfba
KT		 2486 if (pos + 15 > bytes) {
2487 BIO_printf(bio_err,
2488 "MySQL server handshake packet is broken.\n");
2489 goto shut;
2490 }
2491
2492 pos += 12; /* skip over conn id[4] + SALT[8] */
2493 if (packet[pos++] != '\0') { /* verify filler */
2494 BIO_printf(bio_err,
2495 "MySQL packet is broken.\n");
2496 goto shut;
2497 }
2498
2499 /* capability flags[2] */
2500 if (!((packet[pos] + (packet[pos + 1] << 8)) & ssl_flg)) {
2501 BIO_printf(bio_err, "MySQL server does not support SSL.\n");
2502 goto shut;
2503 }
2504
2505 /* Sending SSL Handshake packet. */
2506 BIO_write(sbio, ssl_req, sizeof(ssl_req));
2507 (void)BIO_flush(sbio);
2508 }
2509 break;
b2e54eb8
VV		 2510 case PROTO_POSTGRES:
2511 {
2512 static const unsigned char ssl_request[] = {
2513 /* Length SSLRequest */
2514 0, 0, 0, 8, 4, 210, 22, 47
2515 };
2516 int bytes;
2517
2518 /* Send SSLRequest packet */
2519 BIO_write(sbio, ssl_request, 8);
2520 (void)BIO_flush(sbio);
2521
2522 /* Reply will be a single S if SSL is enabled */
2523 bytes = BIO_read(sbio, sbuf, BUFSIZZ);
2524 if (bytes != 1 || sbuf[0] != 'S')
2525 goto shut;
2526 }
2527 break;
8f85aa6b
RS		 2528 case PROTO_NNTP:
2529 {
2530 int foundit = 0;
2531 BIO *fbio = BIO_new(BIO_f_buffer());
2532
2533 BIO_push(fbio, sbio);
2534 BIO_gets(fbio, mbuf, BUFSIZZ);
2535 /* STARTTLS command requires CAPABILITIES... */
2536 BIO_printf(fbio, "CAPABILITIES\r\n");
2537 (void)BIO_flush(fbio);
2538 /* wait for multi-line CAPABILITIES response */
2539 do {
2540 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2541 if (strstr(mbuf, "STARTTLS"))
2542 foundit = 1;
2543 } while (mbuf_len > 1 && mbuf[0] != '.');
2544 (void)BIO_flush(fbio);
2545 BIO_pop(fbio);
2546 BIO_free(fbio);
2547 if (!foundit)
2548 BIO_printf(bio_err,
2549 "Didn't find STARTTLS in server response,"
2550 " trying anyway...\n");
2551 BIO_printf(sbio, "STARTTLS\r\n");
af7e05c7
RS		 2552 mbuf_len = BIO_read(sbio, mbuf, BUFSIZZ);
2553 if (mbuf_len < 0) {
2554 BIO_printf(bio_err, "BIO_read failed\n");
2555 goto end;
2556 }
2557 mbuf[mbuf_len] = '\0';
2558 if (strstr(mbuf, "382") == NULL) {
2559 BIO_printf(bio_err, "STARTTLS failed: %s", mbuf);
2560 goto shut;
2561 }
8f85aa6b
RS		 2562 }
2563 break;
20967afb
RS		 2564 case PROTO_SIEVE:
2565 {
2566 int foundit = 0;
2567 BIO *fbio = BIO_new(BIO_f_buffer());
2568
2569 BIO_push(fbio, sbio);
2570 /* wait for multi-line response to end from Sieve */
2571 do {
2572 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2573 /*
2574 * According to RFC 5804 § 1.7, capability
2575 * is case-insensitive, make it uppercase
2576 */
2577 if (mbuf_len > 1 && mbuf[0] == '"') {
2578 make_uppercase(mbuf);
2579 if (strncmp(mbuf, "\"STARTTLS\"", 10) == 0)
2580 foundit = 1;
2581 }
2582 } while (mbuf_len > 1 && mbuf[0] == '"');
2583 (void)BIO_flush(fbio);
2584 BIO_pop(fbio);
2585 BIO_free(fbio);
2586 if (!foundit)
2587 BIO_printf(bio_err,
2588 "Didn't find STARTTLS in server response,"
2589 " trying anyway...\n");
2590 BIO_printf(sbio, "STARTTLS\r\n");
2591 mbuf_len = BIO_read(sbio, mbuf, BUFSIZZ);
2592 if (mbuf_len < 0) {
2593 BIO_printf(bio_err, "BIO_read failed\n");
2594 goto end;
af7e05c7
RS		 2595 }
2596 mbuf[mbuf_len] = '\0';
2597 if (mbuf_len < 2) {
2598 BIO_printf(bio_err, "STARTTLS failed: %s", mbuf);
20967afb
RS		 2599 goto shut;
2600 }
2601 /*
2602 * According to RFC 5804 § 2.2, response codes are case-
2603 * insensitive, make it uppercase but preserve the response.
2604 */
20967afb
RS		 2605 strncpy(sbuf, mbuf, 2);
2606 make_uppercase(sbuf);
2607 if (strncmp(sbuf, "OK", 2) != 0) {
2608 BIO_printf(bio_err, "STARTTLS not supported: %s", mbuf);
2609 goto shut;
2610 }
2611 }
2612 break;
398b0bbd
RS		 2613 case PROTO_LDAP:
2614 {
2615 /* StartTLS Operation according to RFC 4511 */
2616 static char ldap_tls_genconf[] = "asn1=SEQUENCE:LDAPMessage\n"
2617 "[LDAPMessage]\n"
2618 "messageID=INTEGER:1\n"
2619 "extendedReq=EXPLICIT:23A,IMPLICIT:0C,"
2620 "FORMAT:ASCII,OCT:1.3.6.1.4.1.1466.20037\n";
2621 long errline = -1;
2622 char *genstr = NULL;
2623 int result = -1;
2624 ASN1_TYPE *atyp = NULL;
2625 BIO *ldapbio = BIO_new(BIO_s_mem());
2626 CONF *cnf = NCONF_new(NULL);
2627
2628 if (cnf == NULL) {
2629 BIO_free(ldapbio);
2630 goto end;
2631 }
2632 BIO_puts(ldapbio, ldap_tls_genconf);
2633 if (NCONF_load_bio(cnf, ldapbio, &errline) <= 0) {
2634 BIO_free(ldapbio);
2635 NCONF_free(cnf);
2636 if (errline <= 0) {
2637 BIO_printf(bio_err, "NCONF_load_bio failed\n");
2638 goto end;
2639 } else {
2640 BIO_printf(bio_err, "Error on line %ld\n", errline);
2641 goto end;
2642 }
2643 }
2644 BIO_free(ldapbio);
2645 genstr = NCONF_get_string(cnf, "default", "asn1");
2646 if (genstr == NULL) {
2647 NCONF_free(cnf);
2648 BIO_printf(bio_err, "NCONF_get_string failed\n");
2649 goto end;
2650 }
2651 atyp = ASN1_generate_nconf(genstr, cnf);
2652 if (atyp == NULL) {
2653 NCONF_free(cnf);
2654 BIO_printf(bio_err, "ASN1_generate_nconf failed\n");
2655 goto end;
2656 }
2657 NCONF_free(cnf);
2658
2659 /* Send SSLRequest packet */
2660 BIO_write(sbio, atyp->value.sequence->data,
2661 atyp->value.sequence->length);
2662 (void)BIO_flush(sbio);
2663 ASN1_TYPE_free(atyp);
2664
2665 mbuf_len = BIO_read(sbio, mbuf, BUFSIZZ);
2666 if (mbuf_len < 0) {
2667 BIO_printf(bio_err, "BIO_read failed\n");
2668 goto end;
2669 }
2670 result = ldap_ExtendedResponse_parse(mbuf, mbuf_len);
2671 if (result < 0) {
2672 BIO_printf(bio_err, "ldap_ExtendedResponse_parse failed\n");
2673 goto shut;
2674 } else if (result > 0) {
2675 BIO_printf(bio_err, "STARTTLS failed, LDAP Result Code: %i\n",
2676 result);
2677 goto shut;
2678 }
2679 mbuf_len = 0;
2680 }
2681 break;
0f113f3e
MC		 2682 }
2683
0a5ece5b 2684 if (early_data_file != NULL
add8d0e9
MC		 2685 && ((SSL_get0_session(con) != NULL
2686 && SSL_SESSION_get_max_early_data(SSL_get0_session(con)) > 0)
2687 || (psksess != NULL
2688 && SSL_SESSION_get_max_early_data(psksess) > 0))) {
923ac827
MC		 2689 BIO *edfile = BIO_new_file(early_data_file, "r");
2690 size_t readbytes, writtenbytes;
2691 int finish = 0;
2692
2693 if (edfile == NULL) {
2694 BIO_printf(bio_err, "Cannot open early data file\n");
2695 goto shut;
2696 }
2697
2698 while (!finish) {
2699 if (!BIO_read_ex(edfile, cbuf, BUFSIZZ, &readbytes))
2700 finish = 1;
2701
0665b4ed 2702 while (!SSL_write_early_data(con, cbuf, readbytes, &writtenbytes)) {
923ac827
MC		 2703 switch (SSL_get_error(con, 0)) {
2704 case SSL_ERROR_WANT_WRITE:
2705 case SSL_ERROR_WANT_ASYNC:
2706 case SSL_ERROR_WANT_READ:
2707 /* Just keep trying - busy waiting */
2708 continue;
2709 default:
2710 BIO_printf(bio_err, "Error writing early data\n");
2711 BIO_free(edfile);
dd5b98c5 2712 ERR_print_errors(bio_err);
923ac827
MC		 2713 goto shut;
2714 }
2715 }
2716 }
2717
2718 BIO_free(edfile);
2719 }
2720
0f113f3e
MC		 2721 for (;;) {
2722 FD_ZERO(&readfds);
2723 FD_ZERO(&writefds);
2724
6f6da2fe 2725 if (SSL_is_dtls(con) && DTLSv1_get_timeout(con, &timeout))
0f113f3e
MC		 2726 timeoutp = &timeout;
2727 else
2728 timeoutp = NULL;
2729
12557a34 2730 if (!SSL_is_init_finished(con) && SSL_total_renegotiations(con) == 0
b07b2a1b 2731 && SSL_get_key_update_type(con) == SSL_KEY_UPDATE_NONE) {
0f113f3e
MC		 2732 in_init = 1;
2733 tty_on = 0;
2734 } else {
2735 tty_on = 1;
2736 if (in_init) {
2737 in_init = 0;
e481f9b9 2738
0f113f3e
MC		 2739 if (c_brief) {
2740 BIO_puts(bio_err, "CONNECTION ESTABLISHED\n");
ecf3a1fb 2741 print_ssl_summary(con);
0f113f3e
MC		 2742 }
2743
0d4d5ab8 2744 print_stuff(bio_c_out, con, full_log);
0f113f3e
MC		 2745 if (full_log > 0)
2746 full_log--;
2747
2748 if (starttls_proto) {
7e1b7485 2749 BIO_write(bio_err, mbuf, mbuf_len);
0f113f3e 2750 /* We don't need to know any more */
7e1b7485
RS		 2751 if (!reconnect)
2752 starttls_proto = PROTO_OFF;
0f113f3e
MC		 2753 }
2754
2755 if (reconnect) {
2756 reconnect--;
2757 BIO_printf(bio_c_out,
2758 "drop connection and then reconnect\n");
ec447924 2759 do_ssl_shutdown(con);
0f113f3e 2760 SSL_set_connect_state(con);
8731a4fc 2761 BIO_closesocket(SSL_get_fd(con));
0f113f3e
MC		 2762 goto re_start;
2763 }
2764 }
2765 }
2766
fd068d50 2767 ssl_pending = read_ssl && SSL_has_pending(con);
0f113f3e
MC		 2768
2769 if (!ssl_pending) {
1fbab1dc 2770#if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS)
0f113f3e 2771 if (tty_on) {
a3ef2c16
JD		 2772 /*
2773 * Note that select() returns when read _would not block_,
2774 * and EOF satisfies that. To avoid a CPU-hogging loop,
2775 * set the flag so we exit.
2776 */
2777 if (read_tty && !at_eof)
51e5133d
RL		 2778 openssl_fdset(fileno_stdin(), &readfds);
2779#if !defined(OPENSSL_SYS_VMS)
0f113f3e 2780 if (write_tty)
51e5133d 2781 openssl_fdset(fileno_stdout(), &writefds);
0d3b6583 2782#endif
0f113f3e
MC		 2783 }
2784 if (read_ssl)
2785 openssl_fdset(SSL_get_fd(con), &readfds);
2786 if (write_ssl)
2787 openssl_fdset(SSL_get_fd(con), &writefds);
06f4536a 2788#else
0f113f3e
MC		 2789 if (!tty_on || !write_tty) {
2790 if (read_ssl)
2791 openssl_fdset(SSL_get_fd(con), &readfds);
2792 if (write_ssl)
2793 openssl_fdset(SSL_get_fd(con), &writefds);
2794 }
2795#endif
0f113f3e
MC		 2796
2797 /*
2798 * Note: under VMS with SOCKETSHR the second parameter is
2799 * currently of type (int *) whereas under other systems it is
2800 * (void *) if you don't have a cast it will choke the compiler:
2801 * if you do have a cast then you can either go for (int *) or
2802 * (void *).
2803 */
3d7c4a5a 2804#if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
0f113f3e
MC		 2805 /*
2806 * Under Windows/DOS we make the assumption that we can always
2807 * write to the tty: therefore if we need to write to the tty we
2808 * just fall through. Otherwise we timeout the select every
2809 * second and see if there are any keypresses. Note: this is a
2810 * hack, in a proper Windows application we wouldn't do this.
2811 */
2812 i = 0;
2813 if (!write_tty) {
2814 if (read_tty) {
2815 tv.tv_sec = 1;
2816 tv.tv_usec = 0;
2817 i = select(width, (void *)&readfds, (void *)&writefds,
2818 NULL, &tv);
75dd6c1a 2819 if (!i && (!has_stdin_waiting() || !read_tty))
0f113f3e 2820 continue;
0f113f3e
MC		 2821 } else
2822 i = select(width, (void *)&readfds, (void *)&writefds,
2823 NULL, timeoutp);
2824 }
06f4536a 2825#else
0f113f3e
MC		 2826 i = select(width, (void *)&readfds, (void *)&writefds,
2827 NULL, timeoutp);
2828#endif
2829 if (i < 0) {
2830 BIO_printf(bio_err, "bad select %d\n",
2831 get_last_socket_error());
2832 goto shut;
0f113f3e
MC		 2833 }
2834 }
2835
6f6da2fe 2836 if (SSL_is_dtls(con) && DTLSv1_handle_timeout(con) > 0)
0f113f3e 2837 BIO_printf(bio_err, "TIMEOUT occurred\n");
0f113f3e
MC		 2838
2839 if (!ssl_pending && FD_ISSET(SSL_get_fd(con), &writefds)) {
2840 k = SSL_write(con, &(cbuf[cbuf_off]), (unsigned int)cbuf_len);
2841 switch (SSL_get_error(con, k)) {
2842 case SSL_ERROR_NONE:
2843 cbuf_off += k;
2844 cbuf_len -= k;
2845 if (k <= 0)
2846 goto end;
2847 /* we have done a write(con,NULL,0); */
2848 if (cbuf_len <= 0) {
2849 read_tty = 1;
2850 write_ssl = 0;
2851 } else { /* if (cbuf_len > 0) */
2852
2853 read_tty = 0;
2854 write_ssl = 1;
2855 }
2856 break;
2857 case SSL_ERROR_WANT_WRITE:
2858 BIO_printf(bio_c_out, "write W BLOCK\n");
2859 write_ssl = 1;
2860 read_tty = 0;
2861 break;
7e25dd6d
MC		 2862 case SSL_ERROR_WANT_ASYNC:
2863 BIO_printf(bio_c_out, "write A BLOCK\n");
e1b9840e 2864 wait_for_async(con);
7e25dd6d
MC		 2865 write_ssl = 1;
2866 read_tty = 0;
2867 break;
0f113f3e
MC		 2868 case SSL_ERROR_WANT_READ:
2869 BIO_printf(bio_c_out, "write R BLOCK\n");
2870 write_tty = 0;
2871 read_ssl = 1;
2872 write_ssl = 0;
2873 break;
2874 case SSL_ERROR_WANT_X509_LOOKUP:
2875 BIO_printf(bio_c_out, "write X BLOCK\n");
2876 break;
2877 case SSL_ERROR_ZERO_RETURN:
2878 if (cbuf_len != 0) {
2879 BIO_printf(bio_c_out, "shutdown\n");
2880 ret = 0;
2881 goto shut;
2882 } else {
2883 read_tty = 1;
2884 write_ssl = 0;
2885 break;
2886 }
2887
2888 case SSL_ERROR_SYSCALL:
2889 if ((k != 0) || (cbuf_len != 0)) {
2890 BIO_printf(bio_err, "write:errno=%d\n",
2891 get_last_socket_error());
2892 goto shut;
2893 } else {
2894 read_tty = 1;
2895 write_ssl = 0;
2896 }
2897 break;
fc7f190c
MC		 2898 case SSL_ERROR_WANT_ASYNC_JOB:
2899 /* This shouldn't ever happen in s_client - treat as an error */
0f113f3e
MC		 2900 case SSL_ERROR_SSL:
2901 ERR_print_errors(bio_err);
2902 goto shut;
2903 }
2904 }
c7bdb6a3 2905#if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_VMS)
0f113f3e
MC		 2906 /* Assume Windows/DOS/BeOS can always write */
2907 else if (!ssl_pending && write_tty)
06f4536a 2908#else
51e5133d 2909 else if (!ssl_pending && FD_ISSET(fileno_stdout(), &writefds))
06f4536a 2910#endif
0f113f3e 2911 {
a53955d8 2912#ifdef CHARSET_EBCDIC
0f113f3e
MC		 2913 ascii2ebcdic(&(sbuf[sbuf_off]), &(sbuf[sbuf_off]), sbuf_len);
2914#endif
2915 i = raw_write_stdout(&(sbuf[sbuf_off]), sbuf_len);
2916
2917 if (i <= 0) {
2918 BIO_printf(bio_c_out, "DONE\n");
2919 ret = 0;
2920 goto shut;
0f113f3e
MC		 2921 }
2922
0fe2a0af 2923 sbuf_len -= i;
0f113f3e
MC		 2924 sbuf_off += i;
2925 if (sbuf_len <= 0) {
2926 read_ssl = 1;
2927 write_tty = 0;
2928 }
2929 } else if (ssl_pending || FD_ISSET(SSL_get_fd(con), &readfds)) {
58964a49 2930#ifdef RENEG
0f113f3e
MC		 2931 {
2932 static int iiii;
2933 if (++iiii == 52) {
2934 SSL_renegotiate(con);
2935 iiii = 0;
2936 }
2937 }
58964a49 2938#endif
0f113f3e 2939 k = SSL_read(con, sbuf, 1024 /* BUFSIZZ */ );
0f113f3e
MC		 2940
2941 switch (SSL_get_error(con, k)) {
2942 case SSL_ERROR_NONE:
2943 if (k <= 0)
2944 goto end;
2945 sbuf_off = 0;
2946 sbuf_len = k;
2947
2948 read_ssl = 0;
2949 write_tty = 1;
2950 break;
7e25dd6d
MC		 2951 case SSL_ERROR_WANT_ASYNC:
2952 BIO_printf(bio_c_out, "read A BLOCK\n");
e1b9840e 2953 wait_for_async(con);
7e25dd6d
MC		 2954 write_tty = 0;
2955 read_ssl = 1;
2956 if ((read_tty == 0) && (write_ssl == 0))
2957 write_ssl = 1;
2958 break;
0f113f3e
MC		 2959 case SSL_ERROR_WANT_WRITE:
2960 BIO_printf(bio_c_out, "read W BLOCK\n");
2961 write_ssl = 1;
2962 read_tty = 0;
2963 break;
2964 case SSL_ERROR_WANT_READ:
2965 BIO_printf(bio_c_out, "read R BLOCK\n");
2966 write_tty = 0;
2967 read_ssl = 1;
2968 if ((read_tty == 0) && (write_ssl == 0))
2969 write_ssl = 1;
2970 break;
2971 case SSL_ERROR_WANT_X509_LOOKUP:
2972 BIO_printf(bio_c_out, "read X BLOCK\n");
2973 break;
2974 case SSL_ERROR_SYSCALL:
2975 ret = get_last_socket_error();
2976 if (c_brief)
2977 BIO_puts(bio_err, "CONNECTION CLOSED BY SERVER\n");
2978 else
2979 BIO_printf(bio_err, "read:errno=%d\n", ret);
2980 goto shut;
2981 case SSL_ERROR_ZERO_RETURN:
2982 BIO_printf(bio_c_out, "closed\n");
2983 ret = 0;
2984 goto shut;
fc7f190c
MC		 2985 case SSL_ERROR_WANT_ASYNC_JOB:
2986 /* This shouldn't ever happen in s_client. Treat as an error */
0f113f3e
MC		 2987 case SSL_ERROR_SSL:
2988 ERR_print_errors(bio_err);
2989 goto shut;
0f113f3e
MC		 2990 }
2991 }
75dd6c1a
MC		 2992/* OPENSSL_SYS_MSDOS includes OPENSSL_SYS_WINDOWS */
2993#if defined(OPENSSL_SYS_MSDOS)
2994 else if (has_stdin_waiting())
06f4536a 2995#else
51e5133d 2996 else if (FD_ISSET(fileno_stdin(), &readfds))
0f113f3e
MC		 2997#endif
2998 {
2999 if (crlf) {
3000 int j, lf_num;
3001
3002 i = raw_read_stdin(cbuf, BUFSIZZ / 2);
3003 lf_num = 0;
3004 /* both loops are skipped when i <= 0 */
3005 for (j = 0; j < i; j++)
3006 if (cbuf[j] == '\n')
3007 lf_num++;
3008 for (j = i - 1; j >= 0; j--) {
3009 cbuf[j + lf_num] = cbuf[j];
3010 if (cbuf[j] == '\n') {
3011 lf_num--;
3012 i++;
3013 cbuf[j + lf_num] = '\r';
3014 }
3015 }
3016 assert(lf_num == 0);
51e5133d 3017 } else
c7bdb6a3 3018 i = raw_read_stdin(cbuf, BUFSIZZ);
d485640b 3019#if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS)
a3ef2c16
JD		 3020 if (i == 0)
3021 at_eof = 1;
d485640b 3022#endif
a3ef2c16 3023
6ba8a5b7 3024 if ((!c_ign_eof) && ((i <= 0) || (cbuf[0] == 'Q' && cmdletters))) {
0f113f3e
MC		 3025 BIO_printf(bio_err, "DONE\n");
3026 ret = 0;
3027 goto shut;
3028 }
3029
6ba8a5b7 3030 if ((!c_ign_eof) && (cbuf[0] == 'R' && cmdletters)) {
0f113f3e
MC		 3031 BIO_printf(bio_err, "RENEGOTIATING\n");
3032 SSL_renegotiate(con);
3033 cbuf_len = 0;
3034 }
b07b2a1b 3035
f14afcaa
MC		 3036 if (!c_ign_eof && (cbuf[0] == 'K' || cbuf[0] == 'k' )
3037 && cmdletters) {
b07b2a1b
MC		 3038 BIO_printf(bio_err, "KEYUPDATE\n");
3039 SSL_key_update(con,
3040 cbuf[0] == 'K' ? SSL_KEY_UPDATE_REQUESTED
3041 : SSL_KEY_UPDATE_NOT_REQUESTED);
3042 cbuf_len = 0;
3043 }
b612799a
RL		 3044#ifndef OPENSSL_NO_HEARTBEATS
3045 else if ((!c_ign_eof) && (cbuf[0] == 'B' && cmdletters)) {
3046 BIO_printf(bio_err, "HEARTBEATING\n");
3047 SSL_heartbeat(con);
3048 cbuf_len = 0;
3049 }
3050#endif
0f113f3e
MC		 3051 else {
3052 cbuf_len = i;
3053 cbuf_off = 0;
a53955d8 3054#ifdef CHARSET_EBCDIC
0f113f3e
MC		 3055 ebcdic2ascii(cbuf, cbuf, i);
3056#endif
3057 }
3058
3059 write_ssl = 1;
3060 read_tty = 0;
3061 }
3062 }
3063
3064 ret = 0;
3065 shut:
3066 if (in_init)
0d4d5ab8 3067 print_stuff(bio_c_out, con, full_log);
ec447924 3068 do_ssl_shutdown(con);
27da42d8 3069
26ec943e
BE		 3070 /*
3071 * If we ended with an alert being sent, but still with data in the
3072 * network buffer to be read, then calling BIO_closesocket() will
3073 * result in a TCP-RST being sent. On some platforms (notably
3074 * Windows) then this will result in the peer immediately abandoning
3075 * the connection including any buffered alert data before it has
3076 * had a chance to be read. Shutting down the sending side first,
3077 * and then closing the socket sends TCP-FIN first followed by
3078 * TCP-RST. This seems to allow the peer to read the alert data.
3079 */
3080 shutdown(SSL_get_fd(con), 1); /* SHUT_WR */
f69d050e
AP		 3081 /*
3082 * We just said we have nothing else to say, but it doesn't mean that
3083 * the other side has nothing. It's even recommended to consume incoming
3084 * data. [In testing context this ensures that alerts are passed on...]
3085 */
3086 timeout.tv_sec = 0;
3087 timeout.tv_usec = 500000; /* some extreme round-trip */
3088 do {
3089 FD_ZERO(&readfds);
3090 openssl_fdset(s, &readfds);
3091 } while (select(s + 1, &readfds, NULL, NULL, &timeout) > 0
3092 && BIO_read(sbio, sbuf, BUFSIZZ) > 0);
3093
8731a4fc 3094 BIO_closesocket(SSL_get_fd(con));
0f113f3e
MC		 3095 end:
3096 if (con != NULL) {
3097 if (prexit != 0)
0d4d5ab8 3098 print_stuff(bio_c_out, con, 1);
0f113f3e
MC		 3099 SSL_free(con);
3100 }
9561e2a1 3101 SSL_SESSION_free(psksess);
e481f9b9 3102#if !defined(OPENSSL_NO_NEXTPROTONEG)
b548a1f1 3103 OPENSSL_free(next_proto.data);
0f113f3e 3104#endif
62adbcee 3105 SSL_CTX_free(ctx);
4bf73e9f 3106 set_keylog_file(NULL, NULL);
222561fe 3107 X509_free(cert);
4b45c6e5 3108 sk_X509_CRL_pop_free(crls, X509_CRL_free);
c5ba2d99 3109 EVP_PKEY_free(key);
222561fe 3110 sk_X509_pop_free(chain, X509_free);
b548a1f1 3111 OPENSSL_free(pass);
d40a1f72
DSH		 3112#ifndef OPENSSL_NO_SRP
3113 OPENSSL_free(srp_arg.srppassin);
3114#endif
eb67172a 3115 OPENSSL_free(connectstr);
ebc01683 3116 OPENSSL_free(bindstr);
ab69ac00
RL		 3117 OPENSSL_free(host);
3118 OPENSSL_free(port);
222561fe 3119 X509_VERIFY_PARAM_free(vpm);
0f113f3e 3120 ssl_excert_free(exc);
7e1b7485 3121 sk_OPENSSL_STRING_free(ssl_args);
cddd424a 3122 sk_OPENSSL_STRING_free(dane_tlsa_rrset);
62adbcee 3123 SSL_CONF_CTX_free(cctx);
4b45c6e5
RS		 3124 OPENSSL_clear_free(cbuf, BUFSIZZ);
3125 OPENSSL_clear_free(sbuf, BUFSIZZ);
3126 OPENSSL_clear_free(mbuf, BUFSIZZ);
dd1abd44 3127 release_engine(e);
ca3a82c3
RS		 3128 BIO_free(bio_c_out);
3129 bio_c_out = NULL;
3130 BIO_free(bio_c_msg);
3131 bio_c_msg = NULL;
26a7d938 3132 return ret;
0f113f3e 3133}
d02b48c6 3134
0d4d5ab8 3135static void print_stuff(BIO *bio, SSL *s, int full)
0f113f3e
MC		 3136{
3137 X509 *peer = NULL;
0f113f3e 3138 STACK_OF(X509) *sk;
0f113f3e 3139 const SSL_CIPHER *c;
20c0bce5
MC		 3140 int i, istls13 = (SSL_version(s) == TLS1_3_VERSION);
3141 long verify_result;
09b6c2ef 3142#ifndef OPENSSL_NO_COMP
0f113f3e
MC		 3143 const COMP_METHOD *comp, *expansion;
3144#endif
3145 unsigned char *exportedkeymat;
dd696a55 3146#ifndef OPENSSL_NO_CT
0d4d5ab8 3147 const SSL_CTX *ctx = SSL_get_SSL_CTX(s);
b5369582 3148#endif
0f113f3e
MC		 3149
3150 if (full) {
3151 int got_a_chain = 0;
3152
3153 sk = SSL_get_peer_cert_chain(s);
3154 if (sk != NULL) {
7e1b7485 3155 got_a_chain = 1;
0f113f3e
MC		 3156
3157 BIO_printf(bio, "---\nCertificate chain\n");
3158 for (i = 0; i < sk_X509_num(sk); i++) {
b5c4209b
DB		 3159 BIO_printf(bio, "%2d s:", i);
3160 X509_NAME_print_ex(bio, X509_get_subject_name(sk_X509_value(sk, i)), 0, get_nameopt());
3161 BIO_puts(bio, "\n");
3162 BIO_printf(bio, " i:");
3163 X509_NAME_print_ex(bio, X509_get_issuer_name(sk_X509_value(sk, i)), 0, get_nameopt());
3164 BIO_puts(bio, "\n");
0f113f3e
MC		 3165 if (c_showcerts)
3166 PEM_write_bio_X509(bio, sk_X509_value(sk, i));
3167 }
3168 }
3169
3170 BIO_printf(bio, "---\n");
3171 peer = SSL_get_peer_certificate(s);
3172 if (peer != NULL) {
3173 BIO_printf(bio, "Server certificate\n");
3174
3175 /* Redundant if we showed the whole chain */
3176 if (!(c_showcerts && got_a_chain))
3177 PEM_write_bio_X509(bio, peer);
b5c4209b 3178 dump_cert_text(bio, peer);
0f113f3e 3179 } else {
5969a2dd 3180 BIO_printf(bio, "no peer certificate available\n");
0f113f3e 3181 }
5969a2dd 3182 print_ca_names(bio, s);
0f113f3e
MC		 3183
3184 ssl_print_sigalgs(bio, s);
3185 ssl_print_tmp_key(bio, s);
3186
dd696a55 3187#ifndef OPENSSL_NO_CT
43341433
VD		 3188 /*
3189 * When the SSL session is anonymous, or resumed via an abbreviated
3190 * handshake, no SCTs are provided as part of the handshake. While in
3191 * a resumed session SCTs may be present in the session's certificate,
3192 * no callbacks are invoked to revalidate these, and in any case that
3193 * set of SCTs may be incomplete. Thus it makes little sense to
3194 * attempt to display SCTs from a resumed session's certificate, and of
3195 * course none are associated with an anonymous peer.
3196 */
3197 if (peer != NULL && !SSL_session_reused(s) && SSL_ct_is_enabled(s)) {
3198 const STACK_OF(SCT) *scts = SSL_get0_peer_scts(s);
3199 int sct_count = scts != NULL ? sk_SCT_num(scts) : 0;
3200
3201 BIO_printf(bio, "---\nSCTs present (%i)\n", sct_count);
3202 if (sct_count > 0) {
3203 const CTLOG_STORE *log_store = SSL_CTX_get0_ctlog_store(ctx);
3204
3205 BIO_printf(bio, "---\n");
3206 for (i = 0; i < sct_count; ++i) {
3207 SCT *sct = sk_SCT_value(scts, i);
3208
3209 BIO_printf(bio, "SCT validation status: %s\n",
3210 SCT_validation_status_string(sct));
3211 SCT_print(sct, bio, 0, log_store);
3212 if (i < sct_count - 1)
3213 BIO_printf(bio, "\n---\n");
3214 }
3215 BIO_printf(bio, "\n");
3216 }
6bea2a72 3217 }
dd696a55
RP		 3218#endif
3219
0f113f3e 3220 BIO_printf(bio,
7d672984
AP		 3221 "---\nSSL handshake has read %ju bytes "
3222 "and written %ju bytes\n",
12997aa9
RS		 3223 BIO_number_read(SSL_get_rbio(s)),
3224 BIO_number_written(SSL_get_wbio(s)));
0f113f3e 3225 }
c0a445a9 3226 print_verify_detail(s, bio);
b577fd0b 3227 BIO_printf(bio, (SSL_session_reused(s) ? "---\nReused, " : "---\nNew, "));
0f113f3e
MC		 3228 c = SSL_get_current_cipher(s);
3229 BIO_printf(bio, "%s, Cipher is %s\n",
3230 SSL_CIPHER_get_version(c), SSL_CIPHER_get_name(c));
3231 if (peer != NULL) {
3232 EVP_PKEY *pktmp;
bde136c8 3233
c01ff880 3234 pktmp = X509_get0_pubkey(peer);
0f113f3e
MC		 3235 BIO_printf(bio, "Server public key is %d bit\n",
3236 EVP_PKEY_bits(pktmp));
0f113f3e
MC		 3237 }
3238 BIO_printf(bio, "Secure Renegotiation IS%s supported\n",
3239 SSL_get_secure_renegotiation_support(s) ? "" : " NOT");
09b6c2ef 3240#ifndef OPENSSL_NO_COMP
0f113f3e
MC		 3241 comp = SSL_get_current_compression(s);
3242 expansion = SSL_get_current_expansion(s);
3243 BIO_printf(bio, "Compression: %s\n",
3244 comp ? SSL_COMP_get_name(comp) : "NONE");
3245 BIO_printf(bio, "Expansion: %s\n",
3246 expansion ? SSL_COMP_get_name(expansion) : "NONE");
3247#endif
3248
57559471 3249#ifdef SSL_DEBUG
0f113f3e
MC		 3250 {
3251 /* Print out local port of connection: useful for debugging */
3252 int sock;
642a166c
RL		 3253 union BIO_sock_info_u info;
3254
0f113f3e 3255 sock = SSL_get_fd(s);
642a166c
RL		 3256 if ((info.addr = BIO_ADDR_new()) != NULL
3257 && BIO_sock_info(sock, BIO_SOCK_INFO_ADDRESS, &info)) {
3258 BIO_printf(bio_c_out, "LOCAL PORT is %u\n",
1abd2925 3259 ntohs(BIO_ADDR_rawport(info.addr)));
642a166c
RL		 3260 }
3261 BIO_ADDR_free(info.addr);
0f113f3e 3262 }
a2f9200f
DSH		 3263#endif
3264
e481f9b9 3265#if !defined(OPENSSL_NO_NEXTPROTONEG)
0f113f3e
MC		 3266 if (next_proto.status != -1) {
3267 const unsigned char *proto;
3268 unsigned int proto_len;
3269 SSL_get0_next_proto_negotiated(s, &proto, &proto_len);
3270 BIO_printf(bio, "Next protocol: (%d) ", next_proto.status);
3271 BIO_write(bio, proto, proto_len);
3272 BIO_write(bio, "\n", 1);
3273 }
e481f9b9 3274#endif
0f113f3e
MC		 3275 {
3276 const unsigned char *proto;
3277 unsigned int proto_len;
3278 SSL_get0_alpn_selected(s, &proto, &proto_len);
3279 if (proto_len > 0) {
3280 BIO_printf(bio, "ALPN protocol: ");
3281 BIO_write(bio, proto, proto_len);
3282 BIO_write(bio, "\n", 1);
3283 } else
3284 BIO_printf(bio, "No ALPN negotiated\n");
3285 }
71fa4513 3286
e783bae2 3287#ifndef OPENSSL_NO_SRTP
0f113f3e
MC		 3288 {
3289 SRTP_PROTECTION_PROFILE *srtp_profile =
3290 SSL_get_selected_srtp_profile(s);
3291
3292 if (srtp_profile)
3293 BIO_printf(bio, "SRTP Extension negotiated, profile=%s\n",
3294 srtp_profile->name);
3295 }
3296#endif
3297
20c0bce5 3298 if (istls13) {
576eb395
MC		 3299 switch (SSL_get_early_data_status(s)) {
3300 case SSL_EARLY_DATA_NOT_SENT:
3301 BIO_printf(bio, "Early data was not sent\n");
3302 break;
3303
3304 case SSL_EARLY_DATA_REJECTED:
3305 BIO_printf(bio, "Early data was rejected\n");
3306 break;
3307
3308 case SSL_EARLY_DATA_ACCEPTED:
3309 BIO_printf(bio, "Early data was accepted\n");
3310 break;
3311
3312 }
20c0bce5
MC		 3313
3314 /*
3315 * We also print the verify results when we dump session information,
3316 * but in TLSv1.3 we may not get that right away (or at all) depending
3317 * on when we get a NewSessionTicket. Therefore we print it now as well.
3318 */
3319 verify_result = SSL_get_verify_result(s);
3320 BIO_printf(bio, "Verify return code: %ld (%s)\n", verify_result,
3321 X509_verify_cert_error_string(verify_result));
3322 } else {
3323 /* In TLSv1.3 we do this on arrival of a NewSessionTicket */
3324 SSL_SESSION_print(bio, SSL_get_session(s));
576eb395
MC		 3325 }
3326
d6073e27 3327 if (SSL_get_session(s) != NULL && keymatexportlabel != NULL) {
0f113f3e
MC		 3328 BIO_printf(bio, "Keying material exporter:\n");
3329 BIO_printf(bio, " Label: '%s'\n", keymatexportlabel);
3330 BIO_printf(bio, " Length: %i bytes\n", keymatexportlen);
68dc6824
RS		 3331 exportedkeymat = app_malloc(keymatexportlen, "export key");
3332 if (!SSL_export_keying_material(s, exportedkeymat,
3333 keymatexportlen,
3334 keymatexportlabel,
3335 strlen(keymatexportlabel),
3336 NULL, 0, 0)) {
3337 BIO_printf(bio, " Error\n");
3338 } else {
3339 BIO_printf(bio, " Keying material: ");
3340 for (i = 0; i < keymatexportlen; i++)
3341 BIO_printf(bio, "%02X", exportedkeymat[i]);
3342 BIO_printf(bio, "\n");
0f113f3e 3343 }
68dc6824 3344 OPENSSL_free(exportedkeymat);
0f113f3e
MC		 3345 }
3346 BIO_printf(bio, "---\n");
222561fe 3347 X509_free(peer);
0f113f3e
MC		 3348 /* flush, or debugging output gets mixed with http response */
3349 (void)BIO_flush(bio);
3350}
d02b48c6 3351
3e41ac35 3352# ifndef OPENSSL_NO_OCSP
67c8e7f4 3353static int ocsp_resp_cb(SSL *s, void *arg)
0f113f3e
MC		 3354{
3355 const unsigned char *p;
3356 int len;
3357 OCSP_RESPONSE *rsp;
3358 len = SSL_get_tlsext_status_ocsp_resp(s, &p);
3359 BIO_puts(arg, "OCSP response: ");
2234212c 3360 if (p == NULL) {
0f113f3e
MC		 3361 BIO_puts(arg, "no response sent\n");
3362 return 1;
3363 }
3364 rsp = d2i_OCSP_RESPONSE(NULL, &p, len);
2234212c 3365 if (rsp == NULL) {
0f113f3e
MC		 3366 BIO_puts(arg, "response parse error\n");
3367 BIO_dump_indent(arg, (char *)p, len, 4);
3368 return 0;
3369 }
3370 BIO_puts(arg, "\n======================================\n");
3371 OCSP_RESPONSE_print(arg, rsp, 0);
3372 BIO_puts(arg, "======================================\n");
3373 OCSP_RESPONSE_free(rsp);
3374 return 1;
3375}
3e41ac35 3376# endif
f9e55034 3377
398b0bbd
RS		 3378static int ldap_ExtendedResponse_parse(const char *buf, long rem)
3379{
3380 const unsigned char *cur, *end;
3381 long len;
3382 int tag, xclass, inf, ret = -1;
3383
3384 cur = (const unsigned char *)buf;
3385 end = cur + rem;
3386
3387 /*
3388 * From RFC 4511:
3389 *
3390 * LDAPMessage ::= SEQUENCE {
3391 * messageID MessageID,
3392 * protocolOp CHOICE {
3393 * ...
3394 * extendedResp ExtendedResponse,
3395 * ... },
3396 * controls [0] Controls OPTIONAL }
3397 *
3398 * ExtendedResponse ::= [APPLICATION 24] SEQUENCE {
3399 * COMPONENTS OF LDAPResult,
3400 * responseName [10] LDAPOID OPTIONAL,
3401 * responseValue [11] OCTET STRING OPTIONAL }
3402 *
3403 * LDAPResult ::= SEQUENCE {
3404 * resultCode ENUMERATED {
3405 * success (0),
3406 * ...
3407 * other (80),
3408 * ... },
3409 * matchedDN LDAPDN,
3410 * diagnosticMessage LDAPString,
3411 * referral [3] Referral OPTIONAL }
3412 */
3413
3414 /* pull SEQUENCE */
3415 inf = ASN1_get_object(&cur, &len, &tag, &xclass, rem);
3416 if (inf != V_ASN1_CONSTRUCTED || tag != V_ASN1_SEQUENCE ||
3417 (rem = end - cur, len > rem)) {
3418 BIO_printf(bio_err, "Unexpected LDAP response\n");
3419 goto end;
3420 }
3421
8b0d4242
AP		 3422 rem = len; /* ensure that we don't overstep the SEQUENCE */
3423
398b0bbd
RS		 3424 /* pull MessageID */
3425 inf = ASN1_get_object(&cur, &len, &tag, &xclass, rem);
3426 if (inf != V_ASN1_UNIVERSAL || tag != V_ASN1_INTEGER ||
3427 (rem = end - cur, len > rem)) {
3428 BIO_printf(bio_err, "No MessageID\n");
3429 goto end;
3430 }
3431
3432 cur += len; /* shall we check for MessageId match or just skip? */
3433
3434 /* pull [APPLICATION 24] */
3435 rem = end - cur;
3436 inf = ASN1_get_object(&cur, &len, &tag, &xclass, rem);
3437 if (inf != V_ASN1_CONSTRUCTED || xclass != V_ASN1_APPLICATION ||
3438 tag != 24) {
3439 BIO_printf(bio_err, "Not ExtendedResponse\n");
3440 goto end;
3441 }
3442
3443 /* pull resultCode */
3444 rem = end - cur;
3445 inf = ASN1_get_object(&cur, &len, &tag, &xclass, rem);
3446 if (inf != V_ASN1_UNIVERSAL || tag != V_ASN1_ENUMERATED || len == 0 ||
3447 (rem = end - cur, len > rem)) {
3448 BIO_printf(bio_err, "Not LDAPResult\n");
3449 goto end;
3450 }
3451
3452 /* len should always be one, but just in case... */
3453 for (ret = 0, inf = 0; inf < len; inf++) {
3454 ret <<= 8;
3455 ret |= cur[inf];
3456 }
3457 /* There is more data, but we don't care... */
3458 end:
3459 return ret;
3460}
3461
d6073e27 3462#endif /* OPENSSL_NO_SOCK */
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