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Add TLSv1.3 post-handshake authentication (PHA)
[thirdparty/openssl.git] / apps / s_client.c
1 /*
2 * Copyright 1995-2018 The OpenSSL Project Authors. All Rights Reserved.
3 * Copyright 2005 Nokia. All rights reserved.
4 *
5 * Licensed under the OpenSSL license (the "License"). You may not use
6 * this file except in compliance with the License. You can obtain a copy
7 * in the file LICENSE in the source distribution or at
8 * https://www.openssl.org/source/license.html
9 */
10
11 #include "e_os.h"
12 #include <ctype.h>
13 #include <stdio.h>
14 #include <stdlib.h>
15 #include <string.h>
16 #include <errno.h>
17 #include <openssl/e_os2.h>
18
19 #ifndef OPENSSL_NO_SOCK
20
21 /*
22 * With IPv6, it looks like Digital has mixed up the proper order of
23 * recursive header file inclusion, resulting in the compiler complaining
24 * that u_int isn't defined, but only if _POSIX_C_SOURCE is defined, which is
25 * needed to have fileno() declared correctly... So let's define u_int
26 */
27 #if defined(OPENSSL_SYS_VMS_DECC) && !defined(__U_INT)
28 # define __U_INT
29 typedef unsigned int u_int;
30 #endif
31
32 #include "apps.h"
33 #include "progs.h"
34 #include <openssl/x509.h>
35 #include <openssl/ssl.h>
36 #include <openssl/err.h>
37 #include <openssl/pem.h>
38 #include <openssl/rand.h>
39 #include <openssl/ocsp.h>
40 #include <openssl/bn.h>
41 #include <openssl/async.h>
42 #ifndef OPENSSL_NO_SRP
43 # include <openssl/srp.h>
44 #endif
45 #ifndef OPENSSL_NO_CT
46 # include <openssl/ct.h>
47 #endif
48 #include "s_apps.h"
49 #include "timeouts.h"
50 #include "internal/sockets.h"
51
52 #if defined(__has_feature)
53 # if __has_feature(memory_sanitizer)
54 # include <sanitizer/msan_interface.h>
55 # endif
56 #endif
57
58 #undef BUFSIZZ
59 #define BUFSIZZ 1024*8
60 #define S_CLIENT_IRC_READ_TIMEOUT 8
61
62 static char *prog;
63 static int c_debug = 0;
64 static int c_showcerts = 0;
65 static char *keymatexportlabel = NULL;
66 static int keymatexportlen = 20;
67 static BIO *bio_c_out = NULL;
68 static int c_quiet = 0;
69 static char *sess_out = NULL;
70 static SSL_SESSION *psksess = NULL;
71
72 static void print_stuff(BIO *berr, SSL *con, int full);
73 #ifndef OPENSSL_NO_OCSP
74 static int ocsp_resp_cb(SSL *s, void *arg);
75 #endif
76 static int ldap_ExtendedResponse_parse(const char *buf, long rem);
77
78 static int saved_errno;
79
80 static void save_errno(void)
81 {
82 saved_errno = errno;
83 errno = 0;
84 }
85
86 static int restore_errno(void)
87 {
88 int ret = errno;
89 errno = saved_errno;
90 return ret;
91 }
92
93 static 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:
105 case SSL_ERROR_WANT_ASYNC_JOB:
106 /* We just do busy waiting. Nothing clever */
107 continue;
108 }
109 ret = 0;
110 }
111 } while (ret < 0);
112 }
113
114 /* Default PSK identity and key */
115 static char *psk_identity = "Client_identity";
116
117 #ifndef OPENSSL_NO_PSK
118 static unsigned int psk_client_cb(SSL *ssl, const char *hint, char *identity,
119 unsigned int max_identity_len,
120 unsigned char *psk,
121 unsigned int max_psk_len)
122 {
123 int ret;
124 long key_len;
125 unsigned char *key;
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");
134 } else if (c_debug) {
135 BIO_printf(bio_c_out, "Received PSK identity hint '%s'\n", hint);
136 }
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);
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",
152 psk_key);
153 return 0;
154 }
155 if (max_psk_len > INT_MAX || key_len > (long)max_psk_len) {
156 BIO_printf(bio_err,
157 "psk buffer of callback is too small (%d) for key (%ld)\n",
158 max_psk_len, key_len);
159 OPENSSL_free(key);
160 return 0;
161 }
162
163 memcpy(psk, key, key_len);
164 OPENSSL_free(key);
165
166 if (c_debug)
167 BIO_printf(bio_c_out, "created PSK len=%ld\n", key_len);
168
169 return key_len;
170 out_err:
171 if (c_debug)
172 BIO_printf(bio_err, "Error in PSK client callback\n");
173 return 0;
174 }
175 #endif
176
177 const unsigned char tls13_aes128gcmsha256_id[] = { 0x13, 0x01 };
178 const unsigned char tls13_aes256gcmsha384_id[] = { 0x13, 0x02 };
179
180 static int psk_use_session_cb(SSL *s, const EVP_MD *md,
181 const unsigned char **id, size_t *idlen,
182 SSL_SESSION **sess)
183 {
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
200 if (key_len == EVP_MD_size(EVP_sha256()))
201 cipher = SSL_CIPHER_find(s, tls13_aes128gcmsha256_id);
202 else if (key_len == EVP_MD_size(EVP_sha384()))
203 cipher = SSL_CIPHER_find(s, tls13_aes256gcmsha384_id);
204
205 if (cipher == NULL) {
206 /* Doesn't look like a suitable TLSv1.3 key. Ignore it */
207 OPENSSL_free(key);
208 *id = NULL;
209 *idlen = 0;
210 *sess = NULL;
211 return 0;
212 }
213 usesess = SSL_SESSION_new();
214 if (usesess == NULL
215 || !SSL_SESSION_set1_master_key(usesess, key, key_len)
216 || !SSL_SESSION_set_cipher(usesess, cipher)
217 || !SSL_SESSION_set_protocol_version(usesess, TLS1_3_VERSION)) {
218 OPENSSL_free(key);
219 goto err;
220 }
221 OPENSSL_free(key);
222 }
223
224 cipher = SSL_SESSION_get0_cipher(usesess);
225 if (cipher == NULL)
226 goto err;
227
228 if (md != NULL && SSL_CIPHER_get_handshake_digest(cipher) != md) {
229 /* PSK not usable, ignore it */
230 *id = NULL;
231 *idlen = 0;
232 *sess = NULL;
233 SSL_SESSION_free(usesess);
234 } else {
235 *sess = usesess;
236 *id = (unsigned char *)psk_identity;
237 *idlen = strlen(psk_identity);
238 }
239
240 return 1;
241
242 err:
243 SSL_SESSION_free(usesess);
244 return 0;
245 }
246
247 /* This is a context that we pass to callbacks */
248 typedef struct tlsextctx_st {
249 BIO *biodebug;
250 int ack;
251 } tlsextctx;
252
253 static int ssl_servername_cb(SSL *s, int *ad, void *arg)
254 {
255 tlsextctx *p = (tlsextctx *) arg;
256 const char *hn = SSL_get_servername(s, TLSEXT_NAMETYPE_host_name);
257 if (SSL_get_servername_type(s) != -1)
258 p->ack = !SSL_session_reused(s) && hn != NULL;
259 else
260 BIO_printf(bio_err, "Can't use SSL_get_servername\n");
261
262 return SSL_TLSEXT_ERR_OK;
263 }
264
265 #ifndef OPENSSL_NO_SRP
266
267 /* This is a context that we pass to all callbacks */
268 typedef struct srp_arg_st {
269 char *srppassin;
270 char *srplogin;
271 int msg; /* copy from c_msg */
272 int debug; /* copy from c_debug */
273 int amp; /* allow more groups */
274 int strength; /* minimal size for N */
275 } SRP_ARG;
276
277 # define SRP_NUMBER_ITERATIONS_FOR_PRIME 64
278
279 static int srp_Verify_N_and_g(const BIGNUM *N, const BIGNUM *g)
280 {
281 BN_CTX *bn_ctx = BN_CTX_new();
282 BIGNUM *p = BN_new();
283 BIGNUM *r = BN_new();
284 int ret =
285 g != NULL && N != NULL && bn_ctx != NULL && BN_is_odd(N) &&
286 BN_is_prime_ex(N, SRP_NUMBER_ITERATIONS_FOR_PRIME, bn_ctx, NULL) == 1 &&
287 p != NULL && BN_rshift1(p, N) &&
288 /* p = (N-1)/2 */
289 BN_is_prime_ex(p, SRP_NUMBER_ITERATIONS_FOR_PRIME, bn_ctx, NULL) == 1 &&
290 r != NULL &&
291 /* verify g^((N-1)/2) == -1 (mod N) */
292 BN_mod_exp(r, g, p, N, bn_ctx) &&
293 BN_add_word(r, 1) && BN_cmp(r, N) == 0;
294
295 BN_free(r);
296 BN_free(p);
297 BN_CTX_free(bn_ctx);
298 return ret;
299 }
300
301 /*-
302 * This callback is used here for two purposes:
303 * - extended debugging
304 * - making some primality tests for unknown groups
305 * The callback is only called for a non default group.
306 *
307 * An application does not need the call back at all if
308 * only the standard groups are used. In real life situations,
309 * client and server already share well known groups,
310 * thus there is no need to verify them.
311 * Furthermore, in case that a server actually proposes a group that
312 * is not one of those defined in RFC 5054, it is more appropriate
313 * to add the group to a static list and then compare since
314 * primality tests are rather cpu consuming.
315 */
316
317 static int ssl_srp_verify_param_cb(SSL *s, void *arg)
318 {
319 SRP_ARG *srp_arg = (SRP_ARG *)arg;
320 BIGNUM *N = NULL, *g = NULL;
321
322 if (((N = SSL_get_srp_N(s)) == NULL) || ((g = SSL_get_srp_g(s)) == NULL))
323 return 0;
324 if (srp_arg->debug || srp_arg->msg || srp_arg->amp == 1) {
325 BIO_printf(bio_err, "SRP parameters:\n");
326 BIO_printf(bio_err, "\tN=");
327 BN_print(bio_err, N);
328 BIO_printf(bio_err, "\n\tg=");
329 BN_print(bio_err, g);
330 BIO_printf(bio_err, "\n");
331 }
332
333 if (SRP_check_known_gN_param(g, N))
334 return 1;
335
336 if (srp_arg->amp == 1) {
337 if (srp_arg->debug)
338 BIO_printf(bio_err,
339 "SRP param N and g are not known params, going to check deeper.\n");
340
341 /*
342 * The srp_moregroups is a real debugging feature. Implementors
343 * should rather add the value to the known ones. The minimal size
344 * has already been tested.
345 */
346 if (BN_num_bits(g) <= BN_BITS && srp_Verify_N_and_g(N, g))
347 return 1;
348 }
349 BIO_printf(bio_err, "SRP param N and g rejected.\n");
350 return 0;
351 }
352
353 # define PWD_STRLEN 1024
354
355 static char *ssl_give_srp_client_pwd_cb(SSL *s, void *arg)
356 {
357 SRP_ARG *srp_arg = (SRP_ARG *)arg;
358 char *pass = app_malloc(PWD_STRLEN + 1, "SRP password buffer");
359 PW_CB_DATA cb_tmp;
360 int l;
361
362 cb_tmp.password = (char *)srp_arg->srppassin;
363 cb_tmp.prompt_info = "SRP user";
364 if ((l = password_callback(pass, PWD_STRLEN, 0, &cb_tmp)) < 0) {
365 BIO_printf(bio_err, "Can't read Password\n");
366 OPENSSL_free(pass);
367 return NULL;
368 }
369 *(pass + l) = '\0';
370
371 return pass;
372 }
373
374 #endif
375
376 static char *srtp_profiles = NULL;
377
378 #ifndef OPENSSL_NO_NEXTPROTONEG
379 /* This the context that we pass to next_proto_cb */
380 typedef struct tlsextnextprotoctx_st {
381 unsigned char *data;
382 size_t len;
383 int status;
384 } tlsextnextprotoctx;
385
386 static tlsextnextprotoctx next_proto;
387
388 static int next_proto_cb(SSL *s, unsigned char **out, unsigned char *outlen,
389 const unsigned char *in, unsigned int inlen,
390 void *arg)
391 {
392 tlsextnextprotoctx *ctx = arg;
393
394 if (!c_quiet) {
395 /* We can assume that |in| is syntactically valid. */
396 unsigned i;
397 BIO_printf(bio_c_out, "Protocols advertised by server: ");
398 for (i = 0; i < inlen;) {
399 if (i)
400 BIO_write(bio_c_out, ", ", 2);
401 BIO_write(bio_c_out, &in[i + 1], in[i]);
402 i += in[i] + 1;
403 }
404 BIO_write(bio_c_out, "\n", 1);
405 }
406
407 ctx->status =
408 SSL_select_next_proto(out, outlen, in, inlen, ctx->data, ctx->len);
409 return SSL_TLSEXT_ERR_OK;
410 }
411 #endif /* ndef OPENSSL_NO_NEXTPROTONEG */
412
413 static int serverinfo_cli_parse_cb(SSL *s, unsigned int ext_type,
414 const unsigned char *in, size_t inlen,
415 int *al, void *arg)
416 {
417 char pem_name[100];
418 unsigned char ext_buf[4 + 65536];
419
420 /* Reconstruct the type/len fields prior to extension data */
421 inlen &= 0xffff; /* for formal memcmpy correctness */
422 ext_buf[0] = (unsigned char)(ext_type >> 8);
423 ext_buf[1] = (unsigned char)(ext_type);
424 ext_buf[2] = (unsigned char)(inlen >> 8);
425 ext_buf[3] = (unsigned char)(inlen);
426 memcpy(ext_buf + 4, in, inlen);
427
428 BIO_snprintf(pem_name, sizeof(pem_name), "SERVERINFO FOR EXTENSION %d",
429 ext_type);
430 PEM_write_bio(bio_c_out, pem_name, "", ext_buf, 4 + inlen);
431 return 1;
432 }
433
434 /*
435 * Hex decoder that tolerates optional whitespace. Returns number of bytes
436 * produced, advances inptr to end of input string.
437 */
438 static ossl_ssize_t hexdecode(const char **inptr, void *result)
439 {
440 unsigned char **out = (unsigned char **)result;
441 const char *in = *inptr;
442 unsigned char *ret = app_malloc(strlen(in) / 2, "hexdecode");
443 unsigned char *cp = ret;
444 uint8_t byte;
445 int nibble = 0;
446
447 if (ret == NULL)
448 return -1;
449
450 for (byte = 0; *in; ++in) {
451 int x;
452
453 if (isspace(_UC(*in)))
454 continue;
455 x = OPENSSL_hexchar2int(*in);
456 if (x < 0) {
457 OPENSSL_free(ret);
458 return 0;
459 }
460 byte |= (char)x;
461 if ((nibble ^= 1) == 0) {
462 *cp++ = byte;
463 byte = 0;
464 } else {
465 byte <<= 4;
466 }
467 }
468 if (nibble != 0) {
469 OPENSSL_free(ret);
470 return 0;
471 }
472 *inptr = in;
473
474 return cp - (*out = ret);
475 }
476
477 /*
478 * Decode unsigned 0..255, returns 1 on success, <= 0 on failure. Advances
479 * inptr to next field skipping leading whitespace.
480 */
481 static ossl_ssize_t checked_uint8(const char **inptr, void *out)
482 {
483 uint8_t *result = (uint8_t *)out;
484 const char *in = *inptr;
485 char *endp;
486 long v;
487 int e;
488
489 save_errno();
490 v = strtol(in, &endp, 10);
491 e = restore_errno();
492
493 if (((v == LONG_MIN || v == LONG_MAX) && e == ERANGE) ||
494 endp == in || !isspace(_UC(*endp)) ||
495 v != (*result = (uint8_t) v)) {
496 return -1;
497 }
498 for (in = endp; isspace(_UC(*in)); ++in)
499 continue;
500
501 *inptr = in;
502 return 1;
503 }
504
505 struct tlsa_field {
506 void *var;
507 const char *name;
508 ossl_ssize_t (*parser)(const char **, void *);
509 };
510
511 static int tlsa_import_rr(SSL *con, const char *rrdata)
512 {
513 /* Not necessary to re-init these values; the "parsers" do that. */
514 static uint8_t usage;
515 static uint8_t selector;
516 static uint8_t mtype;
517 static unsigned char *data;
518 static struct tlsa_field tlsa_fields[] = {
519 { &usage, "usage", checked_uint8 },
520 { &selector, "selector", checked_uint8 },
521 { &mtype, "mtype", checked_uint8 },
522 { &data, "data", hexdecode },
523 { NULL, }
524 };
525 struct tlsa_field *f;
526 int ret;
527 const char *cp = rrdata;
528 ossl_ssize_t len = 0;
529
530 for (f = tlsa_fields; f->var; ++f) {
531 /* Returns number of bytes produced, advances cp to next field */
532 if ((len = f->parser(&cp, f->var)) <= 0) {
533 BIO_printf(bio_err, "%s: warning: bad TLSA %s field in: %s\n",
534 prog, f->name, rrdata);
535 return 0;
536 }
537 }
538 /* The data field is last, so len is its length */
539 ret = SSL_dane_tlsa_add(con, usage, selector, mtype, data, len);
540 OPENSSL_free(data);
541
542 if (ret == 0) {
543 ERR_print_errors(bio_err);
544 BIO_printf(bio_err, "%s: warning: unusable TLSA rrdata: %s\n",
545 prog, rrdata);
546 return 0;
547 }
548 if (ret < 0) {
549 ERR_print_errors(bio_err);
550 BIO_printf(bio_err, "%s: warning: error loading TLSA rrdata: %s\n",
551 prog, rrdata);
552 return 0;
553 }
554 return ret;
555 }
556
557 static int tlsa_import_rrset(SSL *con, STACK_OF(OPENSSL_STRING) *rrset)
558 {
559 int num = sk_OPENSSL_STRING_num(rrset);
560 int count = 0;
561 int i;
562
563 for (i = 0; i < num; ++i) {
564 char *rrdata = sk_OPENSSL_STRING_value(rrset, i);
565 if (tlsa_import_rr(con, rrdata) > 0)
566 ++count;
567 }
568 return count > 0;
569 }
570
571 typedef enum OPTION_choice {
572 OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
573 OPT_4, OPT_6, OPT_HOST, OPT_PORT, OPT_CONNECT, OPT_UNIX,
574 OPT_XMPPHOST, OPT_VERIFY, OPT_NAMEOPT,
575 OPT_CERT, OPT_CRL, OPT_CRL_DOWNLOAD, OPT_SESS_OUT, OPT_SESS_IN,
576 OPT_CERTFORM, OPT_CRLFORM, OPT_VERIFY_RET_ERROR, OPT_VERIFY_QUIET,
577 OPT_BRIEF, OPT_PREXIT, OPT_CRLF, OPT_QUIET, OPT_NBIO,
578 OPT_SSL_CLIENT_ENGINE, OPT_IGN_EOF, OPT_NO_IGN_EOF,
579 OPT_DEBUG, OPT_TLSEXTDEBUG, OPT_STATUS, OPT_WDEBUG,
580 OPT_MSG, OPT_MSGFILE, OPT_ENGINE, OPT_TRACE, OPT_SECURITY_DEBUG,
581 OPT_SECURITY_DEBUG_VERBOSE, OPT_SHOWCERTS, OPT_NBIO_TEST, OPT_STATE,
582 OPT_PSK_IDENTITY, OPT_PSK, OPT_PSK_SESS,
583 #ifndef OPENSSL_NO_SRP
584 OPT_SRPUSER, OPT_SRPPASS, OPT_SRP_STRENGTH, OPT_SRP_LATEUSER,
585 OPT_SRP_MOREGROUPS,
586 #endif
587 OPT_SSL3, OPT_SSL_CONFIG,
588 OPT_TLS1_3, OPT_TLS1_2, OPT_TLS1_1, OPT_TLS1, OPT_DTLS, OPT_DTLS1,
589 OPT_DTLS1_2, OPT_SCTP, OPT_TIMEOUT, OPT_MTU, OPT_KEYFORM, OPT_PASS,
590 OPT_CERT_CHAIN, OPT_CAPATH, OPT_NOCAPATH, OPT_CHAINCAPATH, OPT_VERIFYCAPATH,
591 OPT_KEY, OPT_RECONNECT, OPT_BUILD_CHAIN, OPT_CAFILE, OPT_NOCAFILE,
592 OPT_CHAINCAFILE, OPT_VERIFYCAFILE, OPT_NEXTPROTONEG, OPT_ALPN,
593 OPT_SERVERINFO, OPT_STARTTLS, OPT_SERVERNAME, OPT_NOSERVERNAME, OPT_ASYNC,
594 OPT_USE_SRTP, OPT_KEYMATEXPORT, OPT_KEYMATEXPORTLEN, OPT_PROTOHOST,
595 OPT_MAXFRAGLEN, OPT_MAX_SEND_FRAG, OPT_SPLIT_SEND_FRAG, OPT_MAX_PIPELINES,
596 OPT_READ_BUF, OPT_KEYLOG_FILE, OPT_EARLY_DATA, OPT_REQCAFILE,
597 OPT_V_ENUM,
598 OPT_X_ENUM,
599 OPT_S_ENUM,
600 OPT_FALLBACKSCSV, OPT_NOCMDS, OPT_PROXY, OPT_DANE_TLSA_DOMAIN,
601 #ifndef OPENSSL_NO_CT
602 OPT_CT, OPT_NOCT, OPT_CTLOG_FILE,
603 #endif
604 OPT_DANE_TLSA_RRDATA, OPT_DANE_EE_NO_NAME,
605 OPT_FORCE_PHA,
606 OPT_R_ENUM
607 } OPTION_CHOICE;
608
609 const OPTIONS s_client_options[] = {
610 {"help", OPT_HELP, '-', "Display this summary"},
611 {"host", OPT_HOST, 's', "Use -connect instead"},
612 {"port", OPT_PORT, 'p', "Use -connect instead"},
613 {"connect", OPT_CONNECT, 's',
614 "TCP/IP where to connect (default is :" PORT ")"},
615 {"proxy", OPT_PROXY, 's',
616 "Connect to via specified proxy to the real server"},
617 #ifdef AF_UNIX
618 {"unix", OPT_UNIX, 's', "Connect over the specified Unix-domain socket"},
619 #endif
620 {"4", OPT_4, '-', "Use IPv4 only"},
621 #ifdef AF_INET6
622 {"6", OPT_6, '-', "Use IPv6 only"},
623 #endif
624 {"verify", OPT_VERIFY, 'p', "Turn on peer certificate verification"},
625 {"cert", OPT_CERT, '<', "Certificate file to use, PEM format assumed"},
626 {"certform", OPT_CERTFORM, 'F',
627 "Certificate format (PEM or DER) PEM default"},
628 {"nameopt", OPT_NAMEOPT, 's', "Various certificate name options"},
629 {"key", OPT_KEY, 's', "Private key file to use, if not in -cert file"},
630 {"keyform", OPT_KEYFORM, 'E', "Key format (PEM, DER or engine) PEM default"},
631 {"pass", OPT_PASS, 's', "Private key file pass phrase source"},
632 {"CApath", OPT_CAPATH, '/', "PEM format directory of CA's"},
633 {"CAfile", OPT_CAFILE, '<', "PEM format file of CA's"},
634 {"no-CAfile", OPT_NOCAFILE, '-',
635 "Do not load the default certificates file"},
636 {"no-CApath", OPT_NOCAPATH, '-',
637 "Do not load certificates from the default certificates directory"},
638 {"requestCAfile", OPT_REQCAFILE, '<',
639 "PEM format file of CA names to send to the server"},
640 {"dane_tlsa_domain", OPT_DANE_TLSA_DOMAIN, 's', "DANE TLSA base domain"},
641 {"dane_tlsa_rrdata", OPT_DANE_TLSA_RRDATA, 's',
642 "DANE TLSA rrdata presentation form"},
643 {"dane_ee_no_namechecks", OPT_DANE_EE_NO_NAME, '-',
644 "Disable name checks when matching DANE-EE(3) TLSA records"},
645 {"reconnect", OPT_RECONNECT, '-',
646 "Drop and re-make the connection with the same Session-ID"},
647 {"showcerts", OPT_SHOWCERTS, '-', "Show all certificates in the chain"},
648 {"debug", OPT_DEBUG, '-', "Extra output"},
649 {"msg", OPT_MSG, '-', "Show protocol messages"},
650 {"msgfile", OPT_MSGFILE, '>',
651 "File to send output of -msg or -trace, instead of stdout"},
652 {"nbio_test", OPT_NBIO_TEST, '-', "More ssl protocol testing"},
653 {"state", OPT_STATE, '-', "Print the ssl states"},
654 {"crlf", OPT_CRLF, '-', "Convert LF from terminal into CRLF"},
655 {"quiet", OPT_QUIET, '-', "No s_client output"},
656 {"ign_eof", OPT_IGN_EOF, '-', "Ignore input eof (default when -quiet)"},
657 {"no_ign_eof", OPT_NO_IGN_EOF, '-', "Don't ignore input eof"},
658 {"starttls", OPT_STARTTLS, 's',
659 "Use the appropriate STARTTLS command before starting TLS"},
660 {"xmpphost", OPT_XMPPHOST, 's',
661 "Alias of -name option for \"-starttls xmpp[-server]\""},
662 OPT_R_OPTIONS,
663 {"sess_out", OPT_SESS_OUT, '>', "File to write SSL session to"},
664 {"sess_in", OPT_SESS_IN, '<', "File to read SSL session from"},
665 {"use_srtp", OPT_USE_SRTP, 's',
666 "Offer SRTP key management with a colon-separated profile list"},
667 {"keymatexport", OPT_KEYMATEXPORT, 's',
668 "Export keying material using label"},
669 {"keymatexportlen", OPT_KEYMATEXPORTLEN, 'p',
670 "Export len bytes of keying material (default 20)"},
671 {"maxfraglen", OPT_MAXFRAGLEN, 'p',
672 "Enable Maximum Fragment Length Negotiation (len values: 512, 1024, 2048 and 4096)"},
673 {"fallback_scsv", OPT_FALLBACKSCSV, '-', "Send the fallback SCSV"},
674 {"name", OPT_PROTOHOST, 's',
675 "Hostname to use for \"-starttls lmtp\", \"-starttls smtp\" or \"-starttls xmpp[-server]\""},
676 {"CRL", OPT_CRL, '<', "CRL file to use"},
677 {"crl_download", OPT_CRL_DOWNLOAD, '-', "Download CRL from distribution points"},
678 {"CRLform", OPT_CRLFORM, 'F', "CRL format (PEM or DER) PEM is default"},
679 {"verify_return_error", OPT_VERIFY_RET_ERROR, '-',
680 "Close connection on verification error"},
681 {"verify_quiet", OPT_VERIFY_QUIET, '-', "Restrict verify output to errors"},
682 {"brief", OPT_BRIEF, '-',
683 "Restrict output to brief summary of connection parameters"},
684 {"prexit", OPT_PREXIT, '-',
685 "Print session information when the program exits"},
686 {"security_debug", OPT_SECURITY_DEBUG, '-',
687 "Enable security debug messages"},
688 {"security_debug_verbose", OPT_SECURITY_DEBUG_VERBOSE, '-',
689 "Output more security debug output"},
690 {"cert_chain", OPT_CERT_CHAIN, '<',
691 "Certificate chain file (in PEM format)"},
692 {"chainCApath", OPT_CHAINCAPATH, '/',
693 "Use dir as certificate store path to build CA certificate chain"},
694 {"verifyCApath", OPT_VERIFYCAPATH, '/',
695 "Use dir as certificate store path to verify CA certificate"},
696 {"build_chain", OPT_BUILD_CHAIN, '-', "Build certificate chain"},
697 {"chainCAfile", OPT_CHAINCAFILE, '<',
698 "CA file for certificate chain (PEM format)"},
699 {"verifyCAfile", OPT_VERIFYCAFILE, '<',
700 "CA file for certificate verification (PEM format)"},
701 {"nocommands", OPT_NOCMDS, '-', "Do not use interactive command letters"},
702 {"servername", OPT_SERVERNAME, 's',
703 "Set TLS extension servername (SNI) in ClientHello (default)"},
704 {"noservername", OPT_NOSERVERNAME, '-',
705 "Do not send the server name (SNI) extension in the ClientHello"},
706 {"tlsextdebug", OPT_TLSEXTDEBUG, '-',
707 "Hex dump of all TLS extensions received"},
708 #ifndef OPENSSL_NO_OCSP
709 {"status", OPT_STATUS, '-', "Request certificate status from server"},
710 #endif
711 {"serverinfo", OPT_SERVERINFO, 's',
712 "types Send empty ClientHello extensions (comma-separated numbers)"},
713 {"alpn", OPT_ALPN, 's',
714 "Enable ALPN extension, considering named protocols supported (comma-separated list)"},
715 {"async", OPT_ASYNC, '-', "Support asynchronous operation"},
716 {"ssl_config", OPT_SSL_CONFIG, 's', "Use specified configuration file"},
717 {"max_send_frag", OPT_MAX_SEND_FRAG, 'p', "Maximum Size of send frames "},
718 {"split_send_frag", OPT_SPLIT_SEND_FRAG, 'p',
719 "Size used to split data for encrypt pipelines"},
720 {"max_pipelines", OPT_MAX_PIPELINES, 'p',
721 "Maximum number of encrypt/decrypt pipelines to be used"},
722 {"read_buf", OPT_READ_BUF, 'p',
723 "Default read buffer size to be used for connections"},
724 OPT_S_OPTIONS,
725 OPT_V_OPTIONS,
726 OPT_X_OPTIONS,
727 #ifndef OPENSSL_NO_SSL3
728 {"ssl3", OPT_SSL3, '-', "Just use SSLv3"},
729 #endif
730 #ifndef OPENSSL_NO_TLS1
731 {"tls1", OPT_TLS1, '-', "Just use TLSv1"},
732 #endif
733 #ifndef OPENSSL_NO_TLS1_1
734 {"tls1_1", OPT_TLS1_1, '-', "Just use TLSv1.1"},
735 #endif
736 #ifndef OPENSSL_NO_TLS1_2
737 {"tls1_2", OPT_TLS1_2, '-', "Just use TLSv1.2"},
738 #endif
739 #ifndef OPENSSL_NO_TLS1_3
740 {"tls1_3", OPT_TLS1_3, '-', "Just use TLSv1.3"},
741 #endif
742 #ifndef OPENSSL_NO_DTLS
743 {"dtls", OPT_DTLS, '-', "Use any version of DTLS"},
744 {"timeout", OPT_TIMEOUT, '-',
745 "Enable send/receive timeout on DTLS connections"},
746 {"mtu", OPT_MTU, 'p', "Set the link layer MTU"},
747 #endif
748 #ifndef OPENSSL_NO_DTLS1
749 {"dtls1", OPT_DTLS1, '-', "Just use DTLSv1"},
750 #endif
751 #ifndef OPENSSL_NO_DTLS1_2
752 {"dtls1_2", OPT_DTLS1_2, '-', "Just use DTLSv1.2"},
753 #endif
754 #ifndef OPENSSL_NO_SCTP
755 {"sctp", OPT_SCTP, '-', "Use SCTP"},
756 #endif
757 #ifndef OPENSSL_NO_SSL_TRACE
758 {"trace", OPT_TRACE, '-', "Show trace output of protocol messages"},
759 #endif
760 #ifdef WATT32
761 {"wdebug", OPT_WDEBUG, '-', "WATT-32 tcp debugging"},
762 #endif
763 {"nbio", OPT_NBIO, '-', "Use non-blocking IO"},
764 {"psk_identity", OPT_PSK_IDENTITY, 's', "PSK identity"},
765 {"psk", OPT_PSK, 's', "PSK in hex (without 0x)"},
766 {"psk_session", OPT_PSK_SESS, '<', "File to read PSK SSL session from"},
767 #ifndef OPENSSL_NO_SRP
768 {"srpuser", OPT_SRPUSER, 's', "SRP authentication for 'user'"},
769 {"srppass", OPT_SRPPASS, 's', "Password for 'user'"},
770 {"srp_lateuser", OPT_SRP_LATEUSER, '-',
771 "SRP username into second ClientHello message"},
772 {"srp_moregroups", OPT_SRP_MOREGROUPS, '-',
773 "Tolerate other than the known g N values."},
774 {"srp_strength", OPT_SRP_STRENGTH, 'p', "Minimal length in bits for N"},
775 #endif
776 #ifndef OPENSSL_NO_NEXTPROTONEG
777 {"nextprotoneg", OPT_NEXTPROTONEG, 's',
778 "Enable NPN extension, considering named protocols supported (comma-separated list)"},
779 #endif
780 #ifndef OPENSSL_NO_ENGINE
781 {"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"},
782 {"ssl_client_engine", OPT_SSL_CLIENT_ENGINE, 's',
783 "Specify engine to be used for client certificate operations"},
784 #endif
785 #ifndef OPENSSL_NO_CT
786 {"ct", OPT_CT, '-', "Request and parse SCTs (also enables OCSP stapling)"},
787 {"noct", OPT_NOCT, '-', "Do not request or parse SCTs (default)"},
788 {"ctlogfile", OPT_CTLOG_FILE, '<', "CT log list CONF file"},
789 #endif
790 {"keylogfile", OPT_KEYLOG_FILE, '>', "Write TLS secrets to file"},
791 {"early_data", OPT_EARLY_DATA, '<', "File to send as early data"},
792 {"force_pha", OPT_FORCE_PHA, '-', "Force-enable post-handshake-authentication"},
793 {NULL, OPT_EOF, 0x00, NULL}
794 };
795
796 typedef enum PROTOCOL_choice {
797 PROTO_OFF,
798 PROTO_SMTP,
799 PROTO_POP3,
800 PROTO_IMAP,
801 PROTO_FTP,
802 PROTO_TELNET,
803 PROTO_XMPP,
804 PROTO_XMPP_SERVER,
805 PROTO_CONNECT,
806 PROTO_IRC,
807 PROTO_MYSQL,
808 PROTO_POSTGRES,
809 PROTO_LMTP,
810 PROTO_NNTP,
811 PROTO_SIEVE,
812 PROTO_LDAP
813 } PROTOCOL_CHOICE;
814
815 static const OPT_PAIR services[] = {
816 {"smtp", PROTO_SMTP},
817 {"pop3", PROTO_POP3},
818 {"imap", PROTO_IMAP},
819 {"ftp", PROTO_FTP},
820 {"xmpp", PROTO_XMPP},
821 {"xmpp-server", PROTO_XMPP_SERVER},
822 {"telnet", PROTO_TELNET},
823 {"irc", PROTO_IRC},
824 {"mysql", PROTO_MYSQL},
825 {"postgres", PROTO_POSTGRES},
826 {"lmtp", PROTO_LMTP},
827 {"nntp", PROTO_NNTP},
828 {"sieve", PROTO_SIEVE},
829 {"ldap", PROTO_LDAP},
830 {NULL, 0}
831 };
832
833 #define IS_INET_FLAG(o) \
834 (o == OPT_4 || o == OPT_6 || o == OPT_HOST || o == OPT_PORT || o == OPT_CONNECT)
835 #define IS_UNIX_FLAG(o) (o == OPT_UNIX)
836
837 #define IS_PROT_FLAG(o) \
838 (o == OPT_SSL3 || o == OPT_TLS1 || o == OPT_TLS1_1 || o == OPT_TLS1_2 \
839 || o == OPT_TLS1_3 || o == OPT_DTLS || o == OPT_DTLS1 || o == OPT_DTLS1_2)
840
841 /* Free |*dest| and optionally set it to a copy of |source|. */
842 static void freeandcopy(char **dest, const char *source)
843 {
844 OPENSSL_free(*dest);
845 *dest = NULL;
846 if (source != NULL)
847 *dest = OPENSSL_strdup(source);
848 }
849
850 static int new_session_cb(SSL *S, SSL_SESSION *sess)
851 {
852 BIO *stmp = BIO_new_file(sess_out, "w");
853
854 if (stmp == NULL) {
855 BIO_printf(bio_err, "Error writing session file %s\n", sess_out);
856 } else {
857 PEM_write_bio_SSL_SESSION(stmp, sess);
858 BIO_free(stmp);
859 }
860
861 /*
862 * We always return a "fail" response so that the session gets freed again
863 * because we haven't used the reference.
864 */
865 return 0;
866 }
867
868 int s_client_main(int argc, char **argv)
869 {
870 BIO *sbio;
871 EVP_PKEY *key = NULL;
872 SSL *con = NULL;
873 SSL_CTX *ctx = NULL;
874 STACK_OF(X509) *chain = NULL;
875 X509 *cert = NULL;
876 X509_VERIFY_PARAM *vpm = NULL;
877 SSL_EXCERT *exc = NULL;
878 SSL_CONF_CTX *cctx = NULL;
879 STACK_OF(OPENSSL_STRING) *ssl_args = NULL;
880 char *dane_tlsa_domain = NULL;
881 STACK_OF(OPENSSL_STRING) *dane_tlsa_rrset = NULL;
882 int dane_ee_no_name = 0;
883 STACK_OF(X509_CRL) *crls = NULL;
884 const SSL_METHOD *meth = TLS_client_method();
885 const char *CApath = NULL, *CAfile = NULL;
886 char *cbuf = NULL, *sbuf = NULL;
887 char *mbuf = NULL, *proxystr = NULL, *connectstr = NULL;
888 char *cert_file = NULL, *key_file = NULL, *chain_file = NULL;
889 char *chCApath = NULL, *chCAfile = NULL, *host = NULL;
890 char *port = OPENSSL_strdup(PORT);
891 char *passarg = NULL, *pass = NULL, *vfyCApath = NULL, *vfyCAfile = NULL;
892 char *ReqCAfile = NULL;
893 char *sess_in = NULL, *crl_file = NULL, *p;
894 const char *protohost = NULL;
895 struct timeval timeout, *timeoutp;
896 fd_set readfds, writefds;
897 int noCApath = 0, noCAfile = 0;
898 int build_chain = 0, cbuf_len, cbuf_off, cert_format = FORMAT_PEM;
899 int key_format = FORMAT_PEM, crlf = 0, full_log = 1, mbuf_len = 0;
900 int prexit = 0;
901 int sdebug = 0;
902 int reconnect = 0, verify = SSL_VERIFY_NONE, vpmtouched = 0;
903 int ret = 1, in_init = 1, i, nbio_test = 0, s = -1, k, width, state = 0;
904 int sbuf_len, sbuf_off, cmdletters = 1;
905 int socket_family = AF_UNSPEC, socket_type = SOCK_STREAM, protocol = 0;
906 int starttls_proto = PROTO_OFF, crl_format = FORMAT_PEM, crl_download = 0;
907 int write_tty, read_tty, write_ssl, read_ssl, tty_on, ssl_pending;
908 #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS)
909 int at_eof = 0;
910 #endif
911 int read_buf_len = 0;
912 int fallback_scsv = 0;
913 OPTION_CHOICE o;
914 #ifndef OPENSSL_NO_DTLS
915 int enable_timeouts = 0;
916 long socket_mtu = 0;
917 #endif
918 #ifndef OPENSSL_NO_ENGINE
919 ENGINE *ssl_client_engine = NULL;
920 #endif
921 ENGINE *e = NULL;
922 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
923 struct timeval tv;
924 #endif
925 const char *servername = NULL;
926 int noservername = 0;
927 const char *alpn_in = NULL;
928 tlsextctx tlsextcbp = { NULL, 0 };
929 const char *ssl_config = NULL;
930 #define MAX_SI_TYPES 100
931 unsigned short serverinfo_types[MAX_SI_TYPES];
932 int serverinfo_count = 0, start = 0, len;
933 #ifndef OPENSSL_NO_NEXTPROTONEG
934 const char *next_proto_neg_in = NULL;
935 #endif
936 #ifndef OPENSSL_NO_SRP
937 char *srppass = NULL;
938 int srp_lateuser = 0;
939 SRP_ARG srp_arg = { NULL, NULL, 0, 0, 0, 1024 };
940 #endif
941 #ifndef OPENSSL_NO_CT
942 char *ctlog_file = NULL;
943 int ct_validation = 0;
944 #endif
945 int min_version = 0, max_version = 0, prot_opt = 0, no_prot_opt = 0;
946 int async = 0;
947 unsigned int max_send_fragment = 0;
948 unsigned int split_send_fragment = 0, max_pipelines = 0;
949 enum { use_inet, use_unix, use_unknown } connect_type = use_unknown;
950 int count4or6 = 0;
951 uint8_t maxfraglen = 0;
952 int c_nbio = 0, c_msg = 0, c_ign_eof = 0, c_brief = 0;
953 int c_tlsextdebug = 0;
954 #ifndef OPENSSL_NO_OCSP
955 int c_status_req = 0;
956 #endif
957 BIO *bio_c_msg = NULL;
958 const char *keylog_file = NULL, *early_data_file = NULL;
959 #ifndef OPENSSL_NO_DTLS
960 int isdtls = 0;
961 #endif
962 char *psksessf = NULL;
963 int force_pha = 0;
964
965 FD_ZERO(&readfds);
966 FD_ZERO(&writefds);
967 /* Known false-positive of MemorySanitizer. */
968 #if defined(__has_feature)
969 # if __has_feature(memory_sanitizer)
970 __msan_unpoison(&readfds, sizeof(readfds));
971 __msan_unpoison(&writefds, sizeof(writefds));
972 # endif
973 #endif
974
975 prog = opt_progname(argv[0]);
976 c_quiet = 0;
977 c_debug = 0;
978 c_showcerts = 0;
979 c_nbio = 0;
980 vpm = X509_VERIFY_PARAM_new();
981 cctx = SSL_CONF_CTX_new();
982
983 if (vpm == NULL || cctx == NULL) {
984 BIO_printf(bio_err, "%s: out of memory\n", prog);
985 goto end;
986 }
987
988 cbuf = app_malloc(BUFSIZZ, "cbuf");
989 sbuf = app_malloc(BUFSIZZ, "sbuf");
990 mbuf = app_malloc(BUFSIZZ, "mbuf");
991
992 SSL_CONF_CTX_set_flags(cctx, SSL_CONF_FLAG_CLIENT | SSL_CONF_FLAG_CMDLINE);
993
994 prog = opt_init(argc, argv, s_client_options);
995 while ((o = opt_next()) != OPT_EOF) {
996 /* Check for intermixing flags. */
997 if (connect_type == use_unix && IS_INET_FLAG(o)) {
998 BIO_printf(bio_err,
999 "%s: Intermixed protocol flags (unix and internet domains)\n",
1000 prog);
1001 goto end;
1002 }
1003 if (connect_type == use_inet && IS_UNIX_FLAG(o)) {
1004 BIO_printf(bio_err,
1005 "%s: Intermixed protocol flags (internet and unix domains)\n",
1006 prog);
1007 goto end;
1008 }
1009
1010 if (IS_PROT_FLAG(o) && ++prot_opt > 1) {
1011 BIO_printf(bio_err, "Cannot supply multiple protocol flags\n");
1012 goto end;
1013 }
1014 if (IS_NO_PROT_FLAG(o))
1015 no_prot_opt++;
1016 if (prot_opt == 1 && no_prot_opt) {
1017 BIO_printf(bio_err,
1018 "Cannot supply both a protocol flag and '-no_<prot>'\n");
1019 goto end;
1020 }
1021
1022 switch (o) {
1023 case OPT_EOF:
1024 case OPT_ERR:
1025 opthelp:
1026 BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
1027 goto end;
1028 case OPT_HELP:
1029 opt_help(s_client_options);
1030 ret = 0;
1031 goto end;
1032 case OPT_4:
1033 connect_type = use_inet;
1034 socket_family = AF_INET;
1035 count4or6++;
1036 break;
1037 #ifdef AF_INET6
1038 case OPT_6:
1039 connect_type = use_inet;
1040 socket_family = AF_INET6;
1041 count4or6++;
1042 break;
1043 #endif
1044 case OPT_HOST:
1045 connect_type = use_inet;
1046 freeandcopy(&host, opt_arg());
1047 break;
1048 case OPT_PORT:
1049 connect_type = use_inet;
1050 freeandcopy(&port, opt_arg());
1051 break;
1052 case OPT_CONNECT:
1053 connect_type = use_inet;
1054 freeandcopy(&connectstr, opt_arg());
1055 break;
1056 case OPT_PROXY:
1057 proxystr = opt_arg();
1058 starttls_proto = PROTO_CONNECT;
1059 break;
1060 #ifdef AF_UNIX
1061 case OPT_UNIX:
1062 connect_type = use_unix;
1063 socket_family = AF_UNIX;
1064 freeandcopy(&host, opt_arg());
1065 break;
1066 #endif
1067 case OPT_XMPPHOST:
1068 /* fall through, since this is an alias */
1069 case OPT_PROTOHOST:
1070 protohost = opt_arg();
1071 break;
1072 case OPT_VERIFY:
1073 verify = SSL_VERIFY_PEER;
1074 verify_args.depth = atoi(opt_arg());
1075 if (!c_quiet)
1076 BIO_printf(bio_err, "verify depth is %d\n", verify_args.depth);
1077 break;
1078 case OPT_CERT:
1079 cert_file = opt_arg();
1080 break;
1081 case OPT_NAMEOPT:
1082 if (!set_nameopt(opt_arg()))
1083 goto end;
1084 break;
1085 case OPT_CRL:
1086 crl_file = opt_arg();
1087 break;
1088 case OPT_CRL_DOWNLOAD:
1089 crl_download = 1;
1090 break;
1091 case OPT_SESS_OUT:
1092 sess_out = opt_arg();
1093 break;
1094 case OPT_SESS_IN:
1095 sess_in = opt_arg();
1096 break;
1097 case OPT_CERTFORM:
1098 if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &cert_format))
1099 goto opthelp;
1100 break;
1101 case OPT_CRLFORM:
1102 if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &crl_format))
1103 goto opthelp;
1104 break;
1105 case OPT_VERIFY_RET_ERROR:
1106 verify_args.return_error = 1;
1107 break;
1108 case OPT_VERIFY_QUIET:
1109 verify_args.quiet = 1;
1110 break;
1111 case OPT_BRIEF:
1112 c_brief = verify_args.quiet = c_quiet = 1;
1113 break;
1114 case OPT_S_CASES:
1115 if (ssl_args == NULL)
1116 ssl_args = sk_OPENSSL_STRING_new_null();
1117 if (ssl_args == NULL
1118 || !sk_OPENSSL_STRING_push(ssl_args, opt_flag())
1119 || !sk_OPENSSL_STRING_push(ssl_args, opt_arg())) {
1120 BIO_printf(bio_err, "%s: Memory allocation failure\n", prog);
1121 goto end;
1122 }
1123 break;
1124 case OPT_V_CASES:
1125 if (!opt_verify(o, vpm))
1126 goto end;
1127 vpmtouched++;
1128 break;
1129 case OPT_X_CASES:
1130 if (!args_excert(o, &exc))
1131 goto end;
1132 break;
1133 case OPT_PREXIT:
1134 prexit = 1;
1135 break;
1136 case OPT_CRLF:
1137 crlf = 1;
1138 break;
1139 case OPT_QUIET:
1140 c_quiet = c_ign_eof = 1;
1141 break;
1142 case OPT_NBIO:
1143 c_nbio = 1;
1144 break;
1145 case OPT_NOCMDS:
1146 cmdletters = 0;
1147 break;
1148 case OPT_ENGINE:
1149 e = setup_engine(opt_arg(), 1);
1150 break;
1151 case OPT_SSL_CLIENT_ENGINE:
1152 #ifndef OPENSSL_NO_ENGINE
1153 ssl_client_engine = ENGINE_by_id(opt_arg());
1154 if (ssl_client_engine == NULL) {
1155 BIO_printf(bio_err, "Error getting client auth engine\n");
1156 goto opthelp;
1157 }
1158 #endif
1159 break;
1160 case OPT_R_CASES:
1161 if (!opt_rand(o))
1162 goto end;
1163 break;
1164 case OPT_IGN_EOF:
1165 c_ign_eof = 1;
1166 break;
1167 case OPT_NO_IGN_EOF:
1168 c_ign_eof = 0;
1169 break;
1170 case OPT_DEBUG:
1171 c_debug = 1;
1172 break;
1173 case OPT_TLSEXTDEBUG:
1174 c_tlsextdebug = 1;
1175 break;
1176 case OPT_STATUS:
1177 #ifndef OPENSSL_NO_OCSP
1178 c_status_req = 1;
1179 #endif
1180 break;
1181 case OPT_WDEBUG:
1182 #ifdef WATT32
1183 dbug_init();
1184 #endif
1185 break;
1186 case OPT_MSG:
1187 c_msg = 1;
1188 break;
1189 case OPT_MSGFILE:
1190 bio_c_msg = BIO_new_file(opt_arg(), "w");
1191 break;
1192 case OPT_TRACE:
1193 #ifndef OPENSSL_NO_SSL_TRACE
1194 c_msg = 2;
1195 #endif
1196 break;
1197 case OPT_SECURITY_DEBUG:
1198 sdebug = 1;
1199 break;
1200 case OPT_SECURITY_DEBUG_VERBOSE:
1201 sdebug = 2;
1202 break;
1203 case OPT_SHOWCERTS:
1204 c_showcerts = 1;
1205 break;
1206 case OPT_NBIO_TEST:
1207 nbio_test = 1;
1208 break;
1209 case OPT_STATE:
1210 state = 1;
1211 break;
1212 case OPT_PSK_IDENTITY:
1213 psk_identity = opt_arg();
1214 break;
1215 case OPT_PSK:
1216 for (p = psk_key = opt_arg(); *p; p++) {
1217 if (isxdigit(_UC(*p)))
1218 continue;
1219 BIO_printf(bio_err, "Not a hex number '%s'\n", psk_key);
1220 goto end;
1221 }
1222 break;
1223 case OPT_PSK_SESS:
1224 psksessf = opt_arg();
1225 break;
1226 #ifndef OPENSSL_NO_SRP
1227 case OPT_SRPUSER:
1228 srp_arg.srplogin = opt_arg();
1229 if (min_version < TLS1_VERSION)
1230 min_version = TLS1_VERSION;
1231 break;
1232 case OPT_SRPPASS:
1233 srppass = opt_arg();
1234 if (min_version < TLS1_VERSION)
1235 min_version = TLS1_VERSION;
1236 break;
1237 case OPT_SRP_STRENGTH:
1238 srp_arg.strength = atoi(opt_arg());
1239 BIO_printf(bio_err, "SRP minimal length for N is %d\n",
1240 srp_arg.strength);
1241 if (min_version < TLS1_VERSION)
1242 min_version = TLS1_VERSION;
1243 break;
1244 case OPT_SRP_LATEUSER:
1245 srp_lateuser = 1;
1246 if (min_version < TLS1_VERSION)
1247 min_version = TLS1_VERSION;
1248 break;
1249 case OPT_SRP_MOREGROUPS:
1250 srp_arg.amp = 1;
1251 if (min_version < TLS1_VERSION)
1252 min_version = TLS1_VERSION;
1253 break;
1254 #endif
1255 case OPT_SSL_CONFIG:
1256 ssl_config = opt_arg();
1257 break;
1258 case OPT_SSL3:
1259 min_version = SSL3_VERSION;
1260 max_version = SSL3_VERSION;
1261 break;
1262 case OPT_TLS1_3:
1263 min_version = TLS1_3_VERSION;
1264 max_version = TLS1_3_VERSION;
1265 break;
1266 case OPT_TLS1_2:
1267 min_version = TLS1_2_VERSION;
1268 max_version = TLS1_2_VERSION;
1269 break;
1270 case OPT_TLS1_1:
1271 min_version = TLS1_1_VERSION;
1272 max_version = TLS1_1_VERSION;
1273 break;
1274 case OPT_TLS1:
1275 min_version = TLS1_VERSION;
1276 max_version = TLS1_VERSION;
1277 break;
1278 case OPT_DTLS:
1279 #ifndef OPENSSL_NO_DTLS
1280 meth = DTLS_client_method();
1281 socket_type = SOCK_DGRAM;
1282 isdtls = 1;
1283 #endif
1284 break;
1285 case OPT_DTLS1:
1286 #ifndef OPENSSL_NO_DTLS1
1287 meth = DTLS_client_method();
1288 min_version = DTLS1_VERSION;
1289 max_version = DTLS1_VERSION;
1290 socket_type = SOCK_DGRAM;
1291 isdtls = 1;
1292 #endif
1293 break;
1294 case OPT_DTLS1_2:
1295 #ifndef OPENSSL_NO_DTLS1_2
1296 meth = DTLS_client_method();
1297 min_version = DTLS1_2_VERSION;
1298 max_version = DTLS1_2_VERSION;
1299 socket_type = SOCK_DGRAM;
1300 isdtls = 1;
1301 #endif
1302 break;
1303 case OPT_SCTP:
1304 #ifndef OPENSSL_NO_SCTP
1305 protocol = IPPROTO_SCTP;
1306 #endif
1307 break;
1308 case OPT_TIMEOUT:
1309 #ifndef OPENSSL_NO_DTLS
1310 enable_timeouts = 1;
1311 #endif
1312 break;
1313 case OPT_MTU:
1314 #ifndef OPENSSL_NO_DTLS
1315 socket_mtu = atol(opt_arg());
1316 #endif
1317 break;
1318 case OPT_FALLBACKSCSV:
1319 fallback_scsv = 1;
1320 break;
1321 case OPT_KEYFORM:
1322 if (!opt_format(opt_arg(), OPT_FMT_PDE, &key_format))
1323 goto opthelp;
1324 break;
1325 case OPT_PASS:
1326 passarg = opt_arg();
1327 break;
1328 case OPT_CERT_CHAIN:
1329 chain_file = opt_arg();
1330 break;
1331 case OPT_KEY:
1332 key_file = opt_arg();
1333 break;
1334 case OPT_RECONNECT:
1335 reconnect = 5;
1336 break;
1337 case OPT_CAPATH:
1338 CApath = opt_arg();
1339 break;
1340 case OPT_NOCAPATH:
1341 noCApath = 1;
1342 break;
1343 case OPT_CHAINCAPATH:
1344 chCApath = opt_arg();
1345 break;
1346 case OPT_VERIFYCAPATH:
1347 vfyCApath = opt_arg();
1348 break;
1349 case OPT_BUILD_CHAIN:
1350 build_chain = 1;
1351 break;
1352 case OPT_REQCAFILE:
1353 ReqCAfile = opt_arg();
1354 break;
1355 case OPT_CAFILE:
1356 CAfile = opt_arg();
1357 break;
1358 case OPT_NOCAFILE:
1359 noCAfile = 1;
1360 break;
1361 #ifndef OPENSSL_NO_CT
1362 case OPT_NOCT:
1363 ct_validation = 0;
1364 break;
1365 case OPT_CT:
1366 ct_validation = 1;
1367 break;
1368 case OPT_CTLOG_FILE:
1369 ctlog_file = opt_arg();
1370 break;
1371 #endif
1372 case OPT_CHAINCAFILE:
1373 chCAfile = opt_arg();
1374 break;
1375 case OPT_VERIFYCAFILE:
1376 vfyCAfile = opt_arg();
1377 break;
1378 case OPT_DANE_TLSA_DOMAIN:
1379 dane_tlsa_domain = opt_arg();
1380 break;
1381 case OPT_DANE_TLSA_RRDATA:
1382 if (dane_tlsa_rrset == NULL)
1383 dane_tlsa_rrset = sk_OPENSSL_STRING_new_null();
1384 if (dane_tlsa_rrset == NULL ||
1385 !sk_OPENSSL_STRING_push(dane_tlsa_rrset, opt_arg())) {
1386 BIO_printf(bio_err, "%s: Memory allocation failure\n", prog);
1387 goto end;
1388 }
1389 break;
1390 case OPT_DANE_EE_NO_NAME:
1391 dane_ee_no_name = 1;
1392 break;
1393 case OPT_NEXTPROTONEG:
1394 #ifndef OPENSSL_NO_NEXTPROTONEG
1395 next_proto_neg_in = opt_arg();
1396 #endif
1397 break;
1398 case OPT_ALPN:
1399 alpn_in = opt_arg();
1400 break;
1401 case OPT_SERVERINFO:
1402 p = opt_arg();
1403 len = strlen(p);
1404 for (start = 0, i = 0; i <= len; ++i) {
1405 if (i == len || p[i] == ',') {
1406 serverinfo_types[serverinfo_count] = atoi(p + start);
1407 if (++serverinfo_count == MAX_SI_TYPES)
1408 break;
1409 start = i + 1;
1410 }
1411 }
1412 break;
1413 case OPT_STARTTLS:
1414 if (!opt_pair(opt_arg(), services, &starttls_proto))
1415 goto end;
1416 break;
1417 case OPT_SERVERNAME:
1418 servername = opt_arg();
1419 break;
1420 case OPT_NOSERVERNAME:
1421 noservername = 1;
1422 break;
1423 case OPT_USE_SRTP:
1424 srtp_profiles = opt_arg();
1425 break;
1426 case OPT_KEYMATEXPORT:
1427 keymatexportlabel = opt_arg();
1428 break;
1429 case OPT_KEYMATEXPORTLEN:
1430 keymatexportlen = atoi(opt_arg());
1431 break;
1432 case OPT_ASYNC:
1433 async = 1;
1434 break;
1435 case OPT_MAXFRAGLEN:
1436 len = atoi(opt_arg());
1437 switch (len) {
1438 case 512:
1439 maxfraglen = TLSEXT_max_fragment_length_512;
1440 break;
1441 case 1024:
1442 maxfraglen = TLSEXT_max_fragment_length_1024;
1443 break;
1444 case 2048:
1445 maxfraglen = TLSEXT_max_fragment_length_2048;
1446 break;
1447 case 4096:
1448 maxfraglen = TLSEXT_max_fragment_length_4096;
1449 break;
1450 default:
1451 BIO_printf(bio_err,
1452 "%s: Max Fragment Len %u is out of permitted values",
1453 prog, len);
1454 goto opthelp;
1455 }
1456 break;
1457 case OPT_MAX_SEND_FRAG:
1458 max_send_fragment = atoi(opt_arg());
1459 break;
1460 case OPT_SPLIT_SEND_FRAG:
1461 split_send_fragment = atoi(opt_arg());
1462 break;
1463 case OPT_MAX_PIPELINES:
1464 max_pipelines = atoi(opt_arg());
1465 break;
1466 case OPT_READ_BUF:
1467 read_buf_len = atoi(opt_arg());
1468 break;
1469 case OPT_KEYLOG_FILE:
1470 keylog_file = opt_arg();
1471 break;
1472 case OPT_EARLY_DATA:
1473 early_data_file = opt_arg();
1474 break;
1475 case OPT_FORCE_PHA:
1476 force_pha = 1;
1477 break;
1478 }
1479 }
1480 if (count4or6 >= 2) {
1481 BIO_printf(bio_err, "%s: Can't use both -4 and -6\n", prog);
1482 goto opthelp;
1483 }
1484 if (noservername) {
1485 if (servername != NULL) {
1486 BIO_printf(bio_err,
1487 "%s: Can't use -servername and -noservername together\n",
1488 prog);
1489 goto opthelp;
1490 }
1491 if (dane_tlsa_domain != NULL) {
1492 BIO_printf(bio_err,
1493 "%s: Can't use -dane_tlsa_domain and -noservername together\n",
1494 prog);
1495 goto opthelp;
1496 }
1497 }
1498 argc = opt_num_rest();
1499 if (argc == 1) {
1500 /* If there's a positional argument, it's the equivalent of
1501 * OPT_CONNECT.
1502 * Don't allow -connect and a separate argument.
1503 */
1504 if (connectstr != NULL) {
1505 BIO_printf(bio_err,
1506 "%s: must not provide both -connect option and target parameter\n",
1507 prog);
1508 goto opthelp;
1509 }
1510 connect_type = use_inet;
1511 freeandcopy(&connectstr, *opt_rest());
1512 } else if (argc != 0) {
1513 goto opthelp;
1514 }
1515
1516 #ifndef OPENSSL_NO_NEXTPROTONEG
1517 if (min_version == TLS1_3_VERSION && next_proto_neg_in != NULL) {
1518 BIO_printf(bio_err, "Cannot supply -nextprotoneg with TLSv1.3\n");
1519 goto opthelp;
1520 }
1521 #endif
1522 if (proxystr != NULL) {
1523 int res;
1524 char *tmp_host = host, *tmp_port = port;
1525 if (connectstr == NULL) {
1526 BIO_printf(bio_err, "%s: -proxy requires use of -connect or target parameter\n", prog);
1527 goto opthelp;
1528 }
1529 res = BIO_parse_hostserv(proxystr, &host, &port, BIO_PARSE_PRIO_HOST);
1530 if (tmp_host != host)
1531 OPENSSL_free(tmp_host);
1532 if (tmp_port != port)
1533 OPENSSL_free(tmp_port);
1534 if (!res) {
1535 BIO_printf(bio_err,
1536 "%s: -proxy argument malformed or ambiguous\n", prog);
1537 goto end;
1538 }
1539 } else {
1540 int res = 1;
1541 char *tmp_host = host, *tmp_port = port;
1542 if (connectstr != NULL)
1543 res = BIO_parse_hostserv(connectstr, &host, &port,
1544 BIO_PARSE_PRIO_HOST);
1545 if (tmp_host != host)
1546 OPENSSL_free(tmp_host);
1547 if (tmp_port != port)
1548 OPENSSL_free(tmp_port);
1549 if (!res) {
1550 BIO_printf(bio_err,
1551 "%s: -connect argument or target parameter malformed or ambiguous\n",
1552 prog);
1553 goto end;
1554 }
1555 }
1556
1557 #ifdef AF_UNIX
1558 if (socket_family == AF_UNIX && socket_type != SOCK_STREAM) {
1559 BIO_printf(bio_err,
1560 "Can't use unix sockets and datagrams together\n");
1561 goto end;
1562 }
1563 #endif
1564
1565 #ifndef OPENSSL_NO_SCTP
1566 if (protocol == IPPROTO_SCTP) {
1567 if (socket_type != SOCK_DGRAM) {
1568 BIO_printf(bio_err, "Can't use -sctp without DTLS\n");
1569 goto end;
1570 }
1571 /* SCTP is unusual. It uses DTLS over a SOCK_STREAM protocol */
1572 socket_type = SOCK_STREAM;
1573 }
1574 #endif
1575
1576 #if !defined(OPENSSL_NO_NEXTPROTONEG)
1577 next_proto.status = -1;
1578 if (next_proto_neg_in) {
1579 next_proto.data =
1580 next_protos_parse(&next_proto.len, next_proto_neg_in);
1581 if (next_proto.data == NULL) {
1582 BIO_printf(bio_err, "Error parsing -nextprotoneg argument\n");
1583 goto end;
1584 }
1585 } else
1586 next_proto.data = NULL;
1587 #endif
1588
1589 if (!app_passwd(passarg, NULL, &pass, NULL)) {
1590 BIO_printf(bio_err, "Error getting password\n");
1591 goto end;
1592 }
1593
1594 if (key_file == NULL)
1595 key_file = cert_file;
1596
1597 if (key_file != NULL) {
1598 key = load_key(key_file, key_format, 0, pass, e,
1599 "client certificate private key file");
1600 if (key == NULL) {
1601 ERR_print_errors(bio_err);
1602 goto end;
1603 }
1604 }
1605
1606 if (cert_file != NULL) {
1607 cert = load_cert(cert_file, cert_format, "client certificate file");
1608 if (cert == NULL) {
1609 ERR_print_errors(bio_err);
1610 goto end;
1611 }
1612 }
1613
1614 if (chain_file != NULL) {
1615 if (!load_certs(chain_file, &chain, FORMAT_PEM, NULL,
1616 "client certificate chain"))
1617 goto end;
1618 }
1619
1620 if (crl_file != NULL) {
1621 X509_CRL *crl;
1622 crl = load_crl(crl_file, crl_format);
1623 if (crl == NULL) {
1624 BIO_puts(bio_err, "Error loading CRL\n");
1625 ERR_print_errors(bio_err);
1626 goto end;
1627 }
1628 crls = sk_X509_CRL_new_null();
1629 if (crls == NULL || !sk_X509_CRL_push(crls, crl)) {
1630 BIO_puts(bio_err, "Error adding CRL\n");
1631 ERR_print_errors(bio_err);
1632 X509_CRL_free(crl);
1633 goto end;
1634 }
1635 }
1636
1637 if (!load_excert(&exc))
1638 goto end;
1639
1640 if (bio_c_out == NULL) {
1641 if (c_quiet && !c_debug) {
1642 bio_c_out = BIO_new(BIO_s_null());
1643 if (c_msg && bio_c_msg == NULL)
1644 bio_c_msg = dup_bio_out(FORMAT_TEXT);
1645 } else if (bio_c_out == NULL)
1646 bio_c_out = dup_bio_out(FORMAT_TEXT);
1647 }
1648 #ifndef OPENSSL_NO_SRP
1649 if (!app_passwd(srppass, NULL, &srp_arg.srppassin, NULL)) {
1650 BIO_printf(bio_err, "Error getting password\n");
1651 goto end;
1652 }
1653 #endif
1654
1655 ctx = SSL_CTX_new(meth);
1656 if (ctx == NULL) {
1657 ERR_print_errors(bio_err);
1658 goto end;
1659 }
1660
1661 if (sdebug)
1662 ssl_ctx_security_debug(ctx, sdebug);
1663
1664 if (ssl_config != NULL) {
1665 if (SSL_CTX_config(ctx, ssl_config) == 0) {
1666 BIO_printf(bio_err, "Error using configuration \"%s\"\n",
1667 ssl_config);
1668 ERR_print_errors(bio_err);
1669 goto end;
1670 }
1671 }
1672
1673 if (SSL_CTX_set_min_proto_version(ctx, min_version) == 0)
1674 goto end;
1675 if (SSL_CTX_set_max_proto_version(ctx, max_version) == 0)
1676 goto end;
1677
1678 if (vpmtouched && !SSL_CTX_set1_param(ctx, vpm)) {
1679 BIO_printf(bio_err, "Error setting verify params\n");
1680 ERR_print_errors(bio_err);
1681 goto end;
1682 }
1683
1684 if (async) {
1685 SSL_CTX_set_mode(ctx, SSL_MODE_ASYNC);
1686 }
1687
1688 if (max_send_fragment > 0
1689 && !SSL_CTX_set_max_send_fragment(ctx, max_send_fragment)) {
1690 BIO_printf(bio_err, "%s: Max send fragment size %u is out of permitted range\n",
1691 prog, max_send_fragment);
1692 goto end;
1693 }
1694
1695 if (split_send_fragment > 0
1696 && !SSL_CTX_set_split_send_fragment(ctx, split_send_fragment)) {
1697 BIO_printf(bio_err, "%s: Split send fragment size %u is out of permitted range\n",
1698 prog, split_send_fragment);
1699 goto end;
1700 }
1701
1702 if (max_pipelines > 0
1703 && !SSL_CTX_set_max_pipelines(ctx, max_pipelines)) {
1704 BIO_printf(bio_err, "%s: Max pipelines %u is out of permitted range\n",
1705 prog, max_pipelines);
1706 goto end;
1707 }
1708
1709 if (read_buf_len > 0) {
1710 SSL_CTX_set_default_read_buffer_len(ctx, read_buf_len);
1711 }
1712
1713 if (maxfraglen > 0
1714 && !SSL_CTX_set_tlsext_max_fragment_length(ctx, maxfraglen)) {
1715 BIO_printf(bio_err,
1716 "%s: Max Fragment Length code %u is out of permitted values"
1717 "\n", prog, maxfraglen);
1718 goto end;
1719 }
1720
1721 if (!config_ctx(cctx, ssl_args, ctx))
1722 goto end;
1723
1724 if (!ssl_load_stores(ctx, vfyCApath, vfyCAfile, chCApath, chCAfile,
1725 crls, crl_download)) {
1726 BIO_printf(bio_err, "Error loading store locations\n");
1727 ERR_print_errors(bio_err);
1728 goto end;
1729 }
1730 if (ReqCAfile != NULL) {
1731 STACK_OF(X509_NAME) *nm = sk_X509_NAME_new_null();
1732
1733 if (nm == NULL || !SSL_add_file_cert_subjects_to_stack(nm, ReqCAfile)) {
1734 sk_X509_NAME_pop_free(nm, X509_NAME_free);
1735 BIO_printf(bio_err, "Error loading CA names\n");
1736 ERR_print_errors(bio_err);
1737 goto end;
1738 }
1739 SSL_CTX_set0_CA_list(ctx, nm);
1740 }
1741 #ifndef OPENSSL_NO_ENGINE
1742 if (ssl_client_engine) {
1743 if (!SSL_CTX_set_client_cert_engine(ctx, ssl_client_engine)) {
1744 BIO_puts(bio_err, "Error setting client auth engine\n");
1745 ERR_print_errors(bio_err);
1746 ENGINE_free(ssl_client_engine);
1747 goto end;
1748 }
1749 ENGINE_free(ssl_client_engine);
1750 }
1751 #endif
1752
1753 #ifndef OPENSSL_NO_PSK
1754 if (psk_key != NULL) {
1755 if (c_debug)
1756 BIO_printf(bio_c_out, "PSK key given, setting client callback\n");
1757 SSL_CTX_set_psk_client_callback(ctx, psk_client_cb);
1758 }
1759 #endif
1760 if (psksessf != NULL) {
1761 BIO *stmp = BIO_new_file(psksessf, "r");
1762
1763 if (stmp == NULL) {
1764 BIO_printf(bio_err, "Can't open PSK session file %s\n", psksessf);
1765 ERR_print_errors(bio_err);
1766 goto end;
1767 }
1768 psksess = PEM_read_bio_SSL_SESSION(stmp, NULL, 0, NULL);
1769 BIO_free(stmp);
1770 if (psksess == NULL) {
1771 BIO_printf(bio_err, "Can't read PSK session file %s\n", psksessf);
1772 ERR_print_errors(bio_err);
1773 goto end;
1774 }
1775 }
1776 if (psk_key != NULL || psksess != NULL)
1777 SSL_CTX_set_psk_use_session_callback(ctx, psk_use_session_cb);
1778
1779 #ifndef OPENSSL_NO_SRTP
1780 if (srtp_profiles != NULL) {
1781 /* Returns 0 on success! */
1782 if (SSL_CTX_set_tlsext_use_srtp(ctx, srtp_profiles) != 0) {
1783 BIO_printf(bio_err, "Error setting SRTP profile\n");
1784 ERR_print_errors(bio_err);
1785 goto end;
1786 }
1787 }
1788 #endif
1789
1790 if (exc != NULL)
1791 ssl_ctx_set_excert(ctx, exc);
1792
1793 #if !defined(OPENSSL_NO_NEXTPROTONEG)
1794 if (next_proto.data != NULL)
1795 SSL_CTX_set_next_proto_select_cb(ctx, next_proto_cb, &next_proto);
1796 #endif
1797 if (alpn_in) {
1798 size_t alpn_len;
1799 unsigned char *alpn = next_protos_parse(&alpn_len, alpn_in);
1800
1801 if (alpn == NULL) {
1802 BIO_printf(bio_err, "Error parsing -alpn argument\n");
1803 goto end;
1804 }
1805 /* Returns 0 on success! */
1806 if (SSL_CTX_set_alpn_protos(ctx, alpn, alpn_len) != 0) {
1807 BIO_printf(bio_err, "Error setting ALPN\n");
1808 goto end;
1809 }
1810 OPENSSL_free(alpn);
1811 }
1812
1813 for (i = 0; i < serverinfo_count; i++) {
1814 if (!SSL_CTX_add_client_custom_ext(ctx,
1815 serverinfo_types[i],
1816 NULL, NULL, NULL,
1817 serverinfo_cli_parse_cb, NULL)) {
1818 BIO_printf(bio_err,
1819 "Warning: Unable to add custom extension %u, skipping\n",
1820 serverinfo_types[i]);
1821 }
1822 }
1823
1824 if (state)
1825 SSL_CTX_set_info_callback(ctx, apps_ssl_info_callback);
1826
1827 #ifndef OPENSSL_NO_CT
1828 /* Enable SCT processing, without early connection termination */
1829 if (ct_validation &&
1830 !SSL_CTX_enable_ct(ctx, SSL_CT_VALIDATION_PERMISSIVE)) {
1831 ERR_print_errors(bio_err);
1832 goto end;
1833 }
1834
1835 if (!ctx_set_ctlog_list_file(ctx, ctlog_file)) {
1836 if (ct_validation) {
1837 ERR_print_errors(bio_err);
1838 goto end;
1839 }
1840
1841 /*
1842 * If CT validation is not enabled, the log list isn't needed so don't
1843 * show errors or abort. We try to load it regardless because then we
1844 * can show the names of the logs any SCTs came from (SCTs may be seen
1845 * even with validation disabled).
1846 */
1847 ERR_clear_error();
1848 }
1849 #endif
1850
1851 SSL_CTX_set_verify(ctx, verify, verify_callback);
1852
1853 if (!ctx_set_verify_locations(ctx, CAfile, CApath, noCAfile, noCApath)) {
1854 ERR_print_errors(bio_err);
1855 goto end;
1856 }
1857
1858 ssl_ctx_add_crls(ctx, crls, crl_download);
1859
1860 if (!set_cert_key_stuff(ctx, cert, key, chain, build_chain))
1861 goto end;
1862
1863 if (!noservername) {
1864 tlsextcbp.biodebug = bio_err;
1865 SSL_CTX_set_tlsext_servername_callback(ctx, ssl_servername_cb);
1866 SSL_CTX_set_tlsext_servername_arg(ctx, &tlsextcbp);
1867 }
1868 # ifndef OPENSSL_NO_SRP
1869 if (srp_arg.srplogin) {
1870 if (!srp_lateuser && !SSL_CTX_set_srp_username(ctx, srp_arg.srplogin)) {
1871 BIO_printf(bio_err, "Unable to set SRP username\n");
1872 goto end;
1873 }
1874 srp_arg.msg = c_msg;
1875 srp_arg.debug = c_debug;
1876 SSL_CTX_set_srp_cb_arg(ctx, &srp_arg);
1877 SSL_CTX_set_srp_client_pwd_callback(ctx, ssl_give_srp_client_pwd_cb);
1878 SSL_CTX_set_srp_strength(ctx, srp_arg.strength);
1879 if (c_msg || c_debug || srp_arg.amp == 0)
1880 SSL_CTX_set_srp_verify_param_callback(ctx,
1881 ssl_srp_verify_param_cb);
1882 }
1883 # endif
1884
1885 if (dane_tlsa_domain != NULL) {
1886 if (SSL_CTX_dane_enable(ctx) <= 0) {
1887 BIO_printf(bio_err,
1888 "%s: Error enabling DANE TLSA authentication.\n",
1889 prog);
1890 ERR_print_errors(bio_err);
1891 goto end;
1892 }
1893 }
1894
1895 /*
1896 * In TLSv1.3 NewSessionTicket messages arrive after the handshake and can
1897 * come at any time. Therefore we use a callback to write out the session
1898 * when we know about it. This approach works for < TLSv1.3 as well.
1899 */
1900 if (sess_out != NULL) {
1901 SSL_CTX_set_session_cache_mode(ctx, SSL_SESS_CACHE_CLIENT
1902 | SSL_SESS_CACHE_NO_INTERNAL_STORE);
1903 SSL_CTX_sess_set_new_cb(ctx, new_session_cb);
1904 }
1905
1906 if (set_keylog_file(ctx, keylog_file))
1907 goto end;
1908
1909 con = SSL_new(ctx);
1910 if (con == NULL)
1911 goto end;
1912
1913 if (force_pha)
1914 SSL_force_post_handshake_auth(con);
1915
1916 if (sess_in != NULL) {
1917 SSL_SESSION *sess;
1918 BIO *stmp = BIO_new_file(sess_in, "r");
1919 if (stmp == NULL) {
1920 BIO_printf(bio_err, "Can't open session file %s\n", sess_in);
1921 ERR_print_errors(bio_err);
1922 goto end;
1923 }
1924 sess = PEM_read_bio_SSL_SESSION(stmp, NULL, 0, NULL);
1925 BIO_free(stmp);
1926 if (sess == NULL) {
1927 BIO_printf(bio_err, "Can't open session file %s\n", sess_in);
1928 ERR_print_errors(bio_err);
1929 goto end;
1930 }
1931 if (!SSL_set_session(con, sess)) {
1932 BIO_printf(bio_err, "Can't set session\n");
1933 ERR_print_errors(bio_err);
1934 goto end;
1935 }
1936
1937 SSL_SESSION_free(sess);
1938 }
1939
1940 if (fallback_scsv)
1941 SSL_set_mode(con, SSL_MODE_SEND_FALLBACK_SCSV);
1942
1943 if (!noservername && (servername != NULL || dane_tlsa_domain == NULL)) {
1944 if (servername == NULL)
1945 servername = (host == NULL) ? "localhost" : host;
1946 if (!SSL_set_tlsext_host_name(con, servername)) {
1947 BIO_printf(bio_err, "Unable to set TLS servername extension.\n");
1948 ERR_print_errors(bio_err);
1949 goto end;
1950 }
1951 }
1952
1953 if (dane_tlsa_domain != NULL) {
1954 if (SSL_dane_enable(con, dane_tlsa_domain) <= 0) {
1955 BIO_printf(bio_err, "%s: Error enabling DANE TLSA "
1956 "authentication.\n", prog);
1957 ERR_print_errors(bio_err);
1958 goto end;
1959 }
1960 if (dane_tlsa_rrset == NULL) {
1961 BIO_printf(bio_err, "%s: DANE TLSA authentication requires at "
1962 "least one -dane_tlsa_rrdata option.\n", prog);
1963 goto end;
1964 }
1965 if (tlsa_import_rrset(con, dane_tlsa_rrset) <= 0) {
1966 BIO_printf(bio_err, "%s: Failed to import any TLSA "
1967 "records.\n", prog);
1968 goto end;
1969 }
1970 if (dane_ee_no_name)
1971 SSL_dane_set_flags(con, DANE_FLAG_NO_DANE_EE_NAMECHECKS);
1972 } else if (dane_tlsa_rrset != NULL) {
1973 BIO_printf(bio_err, "%s: DANE TLSA authentication requires the "
1974 "-dane_tlsa_domain option.\n", prog);
1975 goto end;
1976 }
1977
1978 re_start:
1979 if (init_client(&s, host, port, socket_family, socket_type, protocol)
1980 == 0) {
1981 BIO_printf(bio_err, "connect:errno=%d\n", get_last_socket_error());
1982 BIO_closesocket(s);
1983 goto end;
1984 }
1985 BIO_printf(bio_c_out, "CONNECTED(%08X)\n", s);
1986
1987 if (c_nbio) {
1988 if (!BIO_socket_nbio(s, 1)) {
1989 ERR_print_errors(bio_err);
1990 goto end;
1991 }
1992 BIO_printf(bio_c_out, "Turned on non blocking io\n");
1993 }
1994 #ifndef OPENSSL_NO_DTLS
1995 if (isdtls) {
1996 union BIO_sock_info_u peer_info;
1997
1998 #ifndef OPENSSL_NO_SCTP
1999 if (protocol == IPPROTO_SCTP)
2000 sbio = BIO_new_dgram_sctp(s, BIO_NOCLOSE);
2001 else
2002 #endif
2003 sbio = BIO_new_dgram(s, BIO_NOCLOSE);
2004
2005 if ((peer_info.addr = BIO_ADDR_new()) == NULL) {
2006 BIO_printf(bio_err, "memory allocation failure\n");
2007 BIO_closesocket(s);
2008 goto end;
2009 }
2010 if (!BIO_sock_info(s, BIO_SOCK_INFO_ADDRESS, &peer_info)) {
2011 BIO_printf(bio_err, "getsockname:errno=%d\n",
2012 get_last_socket_error());
2013 BIO_ADDR_free(peer_info.addr);
2014 BIO_closesocket(s);
2015 goto end;
2016 }
2017
2018 (void)BIO_ctrl_set_connected(sbio, peer_info.addr);
2019 BIO_ADDR_free(peer_info.addr);
2020 peer_info.addr = NULL;
2021
2022 if (enable_timeouts) {
2023 timeout.tv_sec = 0;
2024 timeout.tv_usec = DGRAM_RCV_TIMEOUT;
2025 BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_RECV_TIMEOUT, 0, &timeout);
2026
2027 timeout.tv_sec = 0;
2028 timeout.tv_usec = DGRAM_SND_TIMEOUT;
2029 BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_SEND_TIMEOUT, 0, &timeout);
2030 }
2031
2032 if (socket_mtu) {
2033 if (socket_mtu < DTLS_get_link_min_mtu(con)) {
2034 BIO_printf(bio_err, "MTU too small. Must be at least %ld\n",
2035 DTLS_get_link_min_mtu(con));
2036 BIO_free(sbio);
2037 goto shut;
2038 }
2039 SSL_set_options(con, SSL_OP_NO_QUERY_MTU);
2040 if (!DTLS_set_link_mtu(con, socket_mtu)) {
2041 BIO_printf(bio_err, "Failed to set MTU\n");
2042 BIO_free(sbio);
2043 goto shut;
2044 }
2045 } else {
2046 /* want to do MTU discovery */
2047 BIO_ctrl(sbio, BIO_CTRL_DGRAM_MTU_DISCOVER, 0, NULL);
2048 }
2049 } else
2050 #endif /* OPENSSL_NO_DTLS */
2051 sbio = BIO_new_socket(s, BIO_NOCLOSE);
2052
2053 if (nbio_test) {
2054 BIO *test;
2055
2056 test = BIO_new(BIO_f_nbio_test());
2057 sbio = BIO_push(test, sbio);
2058 }
2059
2060 if (c_debug) {
2061 BIO_set_callback(sbio, bio_dump_callback);
2062 BIO_set_callback_arg(sbio, (char *)bio_c_out);
2063 }
2064 if (c_msg) {
2065 #ifndef OPENSSL_NO_SSL_TRACE
2066 if (c_msg == 2)
2067 SSL_set_msg_callback(con, SSL_trace);
2068 else
2069 #endif
2070 SSL_set_msg_callback(con, msg_cb);
2071 SSL_set_msg_callback_arg(con, bio_c_msg ? bio_c_msg : bio_c_out);
2072 }
2073
2074 if (c_tlsextdebug) {
2075 SSL_set_tlsext_debug_callback(con, tlsext_cb);
2076 SSL_set_tlsext_debug_arg(con, bio_c_out);
2077 }
2078 #ifndef OPENSSL_NO_OCSP
2079 if (c_status_req) {
2080 SSL_set_tlsext_status_type(con, TLSEXT_STATUSTYPE_ocsp);
2081 SSL_CTX_set_tlsext_status_cb(ctx, ocsp_resp_cb);
2082 SSL_CTX_set_tlsext_status_arg(ctx, bio_c_out);
2083 }
2084 #endif
2085
2086 SSL_set_bio(con, sbio, sbio);
2087 SSL_set_connect_state(con);
2088
2089 /* ok, lets connect */
2090 if (fileno_stdin() > SSL_get_fd(con))
2091 width = fileno_stdin() + 1;
2092 else
2093 width = SSL_get_fd(con) + 1;
2094
2095 read_tty = 1;
2096 write_tty = 0;
2097 tty_on = 0;
2098 read_ssl = 1;
2099 write_ssl = 1;
2100
2101 cbuf_len = 0;
2102 cbuf_off = 0;
2103 sbuf_len = 0;
2104 sbuf_off = 0;
2105
2106 switch ((PROTOCOL_CHOICE) starttls_proto) {
2107 case PROTO_OFF:
2108 break;
2109 case PROTO_LMTP:
2110 case PROTO_SMTP:
2111 {
2112 /*
2113 * This is an ugly hack that does a lot of assumptions. We do
2114 * have to handle multi-line responses which may come in a single
2115 * packet or not. We therefore have to use BIO_gets() which does
2116 * need a buffering BIO. So during the initial chitchat we do
2117 * push a buffering BIO into the chain that is removed again
2118 * later on to not disturb the rest of the s_client operation.
2119 */
2120 int foundit = 0;
2121 BIO *fbio = BIO_new(BIO_f_buffer());
2122
2123 BIO_push(fbio, sbio);
2124 /* Wait for multi-line response to end from LMTP or SMTP */
2125 do {
2126 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2127 } while (mbuf_len > 3 && mbuf[3] == '-');
2128 if (protohost == NULL)
2129 protohost = "mail.example.com";
2130 if (starttls_proto == (int)PROTO_LMTP)
2131 BIO_printf(fbio, "LHLO %s\r\n", protohost);
2132 else
2133 BIO_printf(fbio, "EHLO %s\r\n", protohost);
2134 (void)BIO_flush(fbio);
2135 /*
2136 * Wait for multi-line response to end LHLO LMTP or EHLO SMTP
2137 * response.
2138 */
2139 do {
2140 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2141 if (strstr(mbuf, "STARTTLS"))
2142 foundit = 1;
2143 } while (mbuf_len > 3 && mbuf[3] == '-');
2144 (void)BIO_flush(fbio);
2145 BIO_pop(fbio);
2146 BIO_free(fbio);
2147 if (!foundit)
2148 BIO_printf(bio_err,
2149 "Didn't find STARTTLS in server response,"
2150 " trying anyway...\n");
2151 BIO_printf(sbio, "STARTTLS\r\n");
2152 BIO_read(sbio, sbuf, BUFSIZZ);
2153 }
2154 break;
2155 case PROTO_POP3:
2156 {
2157 BIO_read(sbio, mbuf, BUFSIZZ);
2158 BIO_printf(sbio, "STLS\r\n");
2159 mbuf_len = BIO_read(sbio, sbuf, BUFSIZZ);
2160 if (mbuf_len < 0) {
2161 BIO_printf(bio_err, "BIO_read failed\n");
2162 goto end;
2163 }
2164 }
2165 break;
2166 case PROTO_IMAP:
2167 {
2168 int foundit = 0;
2169 BIO *fbio = BIO_new(BIO_f_buffer());
2170
2171 BIO_push(fbio, sbio);
2172 BIO_gets(fbio, mbuf, BUFSIZZ);
2173 /* STARTTLS command requires CAPABILITY... */
2174 BIO_printf(fbio, ". CAPABILITY\r\n");
2175 (void)BIO_flush(fbio);
2176 /* wait for multi-line CAPABILITY response */
2177 do {
2178 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2179 if (strstr(mbuf, "STARTTLS"))
2180 foundit = 1;
2181 }
2182 while (mbuf_len > 3 && mbuf[0] != '.');
2183 (void)BIO_flush(fbio);
2184 BIO_pop(fbio);
2185 BIO_free(fbio);
2186 if (!foundit)
2187 BIO_printf(bio_err,
2188 "Didn't find STARTTLS in server response,"
2189 " trying anyway...\n");
2190 BIO_printf(sbio, ". STARTTLS\r\n");
2191 BIO_read(sbio, sbuf, BUFSIZZ);
2192 }
2193 break;
2194 case PROTO_FTP:
2195 {
2196 BIO *fbio = BIO_new(BIO_f_buffer());
2197
2198 BIO_push(fbio, sbio);
2199 /* wait for multi-line response to end from FTP */
2200 do {
2201 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2202 }
2203 while (mbuf_len > 3 && mbuf[3] == '-');
2204 (void)BIO_flush(fbio);
2205 BIO_pop(fbio);
2206 BIO_free(fbio);
2207 BIO_printf(sbio, "AUTH TLS\r\n");
2208 BIO_read(sbio, sbuf, BUFSIZZ);
2209 }
2210 break;
2211 case PROTO_XMPP:
2212 case PROTO_XMPP_SERVER:
2213 {
2214 int seen = 0;
2215 BIO_printf(sbio, "<stream:stream "
2216 "xmlns:stream='http://etherx.jabber.org/streams' "
2217 "xmlns='jabber:%s' to='%s' version='1.0'>",
2218 starttls_proto == PROTO_XMPP ? "client" : "server",
2219 protohost ? protohost : host);
2220 seen = BIO_read(sbio, mbuf, BUFSIZZ);
2221 if (seen < 0) {
2222 BIO_printf(bio_err, "BIO_read failed\n");
2223 goto end;
2224 }
2225 mbuf[seen] = '\0';
2226 while (!strstr
2227 (mbuf, "<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'")
2228 && !strstr(mbuf,
2229 "<starttls xmlns=\"urn:ietf:params:xml:ns:xmpp-tls\""))
2230 {
2231 seen = BIO_read(sbio, mbuf, BUFSIZZ);
2232
2233 if (seen <= 0)
2234 goto shut;
2235
2236 mbuf[seen] = '\0';
2237 }
2238 BIO_printf(sbio,
2239 "<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'/>");
2240 seen = BIO_read(sbio, sbuf, BUFSIZZ);
2241 if (seen < 0) {
2242 BIO_printf(bio_err, "BIO_read failed\n");
2243 goto shut;
2244 }
2245 sbuf[seen] = '\0';
2246 if (!strstr(sbuf, "<proceed"))
2247 goto shut;
2248 mbuf[0] = '\0';
2249 }
2250 break;
2251 case PROTO_TELNET:
2252 {
2253 static const unsigned char tls_do[] = {
2254 /* IAC DO START_TLS */
2255 255, 253, 46
2256 };
2257 static const unsigned char tls_will[] = {
2258 /* IAC WILL START_TLS */
2259 255, 251, 46
2260 };
2261 static const unsigned char tls_follows[] = {
2262 /* IAC SB START_TLS FOLLOWS IAC SE */
2263 255, 250, 46, 1, 255, 240
2264 };
2265 int bytes;
2266
2267 /* Telnet server should demand we issue START_TLS */
2268 bytes = BIO_read(sbio, mbuf, BUFSIZZ);
2269 if (bytes != 3 || memcmp(mbuf, tls_do, 3) != 0)
2270 goto shut;
2271 /* Agree to issue START_TLS and send the FOLLOWS sub-command */
2272 BIO_write(sbio, tls_will, 3);
2273 BIO_write(sbio, tls_follows, 6);
2274 (void)BIO_flush(sbio);
2275 /* Telnet server also sent the FOLLOWS sub-command */
2276 bytes = BIO_read(sbio, mbuf, BUFSIZZ);
2277 if (bytes != 6 || memcmp(mbuf, tls_follows, 6) != 0)
2278 goto shut;
2279 }
2280 break;
2281 case PROTO_CONNECT:
2282 {
2283 enum {
2284 error_proto, /* Wrong protocol, not even HTTP */
2285 error_connect, /* CONNECT failed */
2286 success
2287 } foundit = error_connect;
2288 BIO *fbio = BIO_new(BIO_f_buffer());
2289
2290 BIO_push(fbio, sbio);
2291 BIO_printf(fbio, "CONNECT %s HTTP/1.0\r\n\r\n", connectstr);
2292 (void)BIO_flush(fbio);
2293 /*
2294 * The first line is the HTTP response. According to RFC 7230,
2295 * it's formated exactly like this:
2296 *
2297 * HTTP/d.d ddd Reason text\r\n
2298 */
2299 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2300 if (mbuf_len < (int)strlen("HTTP/1.0 200")) {
2301 BIO_printf(bio_err,
2302 "%s: HTTP CONNECT failed, insufficient response "
2303 "from proxy (got %d octets)\n", prog, mbuf_len);
2304 (void)BIO_flush(fbio);
2305 BIO_pop(fbio);
2306 BIO_free(fbio);
2307 goto shut;
2308 }
2309 if (mbuf[8] != ' ') {
2310 BIO_printf(bio_err,
2311 "%s: HTTP CONNECT failed, incorrect response "
2312 "from proxy\n", prog);
2313 foundit = error_proto;
2314 } else if (mbuf[9] != '2') {
2315 BIO_printf(bio_err, "%s: HTTP CONNECT failed: %s ", prog,
2316 &mbuf[9]);
2317 } else {
2318 foundit = success;
2319 }
2320 if (foundit != error_proto) {
2321 /* Read past all following headers */
2322 do {
2323 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2324 } while (mbuf_len > 2);
2325 }
2326 (void)BIO_flush(fbio);
2327 BIO_pop(fbio);
2328 BIO_free(fbio);
2329 if (foundit != success) {
2330 goto shut;
2331 }
2332 }
2333 break;
2334 case PROTO_IRC:
2335 {
2336 int numeric;
2337 BIO *fbio = BIO_new(BIO_f_buffer());
2338
2339 BIO_push(fbio, sbio);
2340 BIO_printf(fbio, "STARTTLS\r\n");
2341 (void)BIO_flush(fbio);
2342 width = SSL_get_fd(con) + 1;
2343
2344 do {
2345 numeric = 0;
2346
2347 FD_ZERO(&readfds);
2348 openssl_fdset(SSL_get_fd(con), &readfds);
2349 timeout.tv_sec = S_CLIENT_IRC_READ_TIMEOUT;
2350 timeout.tv_usec = 0;
2351 /*
2352 * If the IRCd doesn't respond within
2353 * S_CLIENT_IRC_READ_TIMEOUT seconds, assume
2354 * it doesn't support STARTTLS. Many IRCds
2355 * will not give _any_ sort of response to a
2356 * STARTTLS command when it's not supported.
2357 */
2358 if (!BIO_get_buffer_num_lines(fbio)
2359 && !BIO_pending(fbio)
2360 && !BIO_pending(sbio)
2361 && select(width, (void *)&readfds, NULL, NULL,
2362 &timeout) < 1) {
2363 BIO_printf(bio_err,
2364 "Timeout waiting for response (%d seconds).\n",
2365 S_CLIENT_IRC_READ_TIMEOUT);
2366 break;
2367 }
2368
2369 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2370 if (mbuf_len < 1 || sscanf(mbuf, "%*s %d", &numeric) != 1)
2371 break;
2372 /* :example.net 451 STARTTLS :You have not registered */
2373 /* :example.net 421 STARTTLS :Unknown command */
2374 if ((numeric == 451 || numeric == 421)
2375 && strstr(mbuf, "STARTTLS") != NULL) {
2376 BIO_printf(bio_err, "STARTTLS not supported: %s", mbuf);
2377 break;
2378 }
2379 if (numeric == 691) {
2380 BIO_printf(bio_err, "STARTTLS negotiation failed: ");
2381 ERR_print_errors(bio_err);
2382 break;
2383 }
2384 } while (numeric != 670);
2385
2386 (void)BIO_flush(fbio);
2387 BIO_pop(fbio);
2388 BIO_free(fbio);
2389 if (numeric != 670) {
2390 BIO_printf(bio_err, "Server does not support STARTTLS.\n");
2391 ret = 1;
2392 goto shut;
2393 }
2394 }
2395 break;
2396 case PROTO_MYSQL:
2397 {
2398 /* SSL request packet */
2399 static const unsigned char ssl_req[] = {
2400 /* payload_length, sequence_id */
2401 0x20, 0x00, 0x00, 0x01,
2402 /* payload */
2403 /* capability flags, CLIENT_SSL always set */
2404 0x85, 0xae, 0x7f, 0x00,
2405 /* max-packet size */
2406 0x00, 0x00, 0x00, 0x01,
2407 /* character set */
2408 0x21,
2409 /* string[23] reserved (all [0]) */
2410 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
2411 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
2412 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
2413 };
2414 int bytes = 0;
2415 int ssl_flg = 0x800;
2416 int pos;
2417 const unsigned char *packet = (const unsigned char *)sbuf;
2418
2419 /* Receiving Initial Handshake packet. */
2420 bytes = BIO_read(sbio, (void *)packet, BUFSIZZ);
2421 if (bytes < 0) {
2422 BIO_printf(bio_err, "BIO_read failed\n");
2423 goto shut;
2424 /* Packet length[3], Packet number[1] + minimum payload[17] */
2425 } else if (bytes < 21) {
2426 BIO_printf(bio_err, "MySQL packet too short.\n");
2427 goto shut;
2428 } else if (bytes != (4 + packet[0] +
2429 (packet[1] << 8) +
2430 (packet[2] << 16))) {
2431 BIO_printf(bio_err, "MySQL packet length does not match.\n");
2432 goto shut;
2433 /* protocol version[1] */
2434 } else if (packet[4] != 0xA) {
2435 BIO_printf(bio_err,
2436 "Only MySQL protocol version 10 is supported.\n");
2437 goto shut;
2438 }
2439
2440 pos = 5;
2441 /* server version[string+NULL] */
2442 for (;;) {
2443 if (pos >= bytes) {
2444 BIO_printf(bio_err, "Cannot confirm server version. ");
2445 goto shut;
2446 } else if (packet[pos++] == '\0') {
2447 break;
2448 }
2449 }
2450
2451 /* make sure we have at least 15 bytes left in the packet */
2452 if (pos + 15 > bytes) {
2453 BIO_printf(bio_err,
2454 "MySQL server handshake packet is broken.\n");
2455 goto shut;
2456 }
2457
2458 pos += 12; /* skip over conn id[4] + SALT[8] */
2459 if (packet[pos++] != '\0') { /* verify filler */
2460 BIO_printf(bio_err,
2461 "MySQL packet is broken.\n");
2462 goto shut;
2463 }
2464
2465 /* capability flags[2] */
2466 if (!((packet[pos] + (packet[pos + 1] << 8)) & ssl_flg)) {
2467 BIO_printf(bio_err, "MySQL server does not support SSL.\n");
2468 goto shut;
2469 }
2470
2471 /* Sending SSL Handshake packet. */
2472 BIO_write(sbio, ssl_req, sizeof(ssl_req));
2473 (void)BIO_flush(sbio);
2474 }
2475 break;
2476 case PROTO_POSTGRES:
2477 {
2478 static const unsigned char ssl_request[] = {
2479 /* Length SSLRequest */
2480 0, 0, 0, 8, 4, 210, 22, 47
2481 };
2482 int bytes;
2483
2484 /* Send SSLRequest packet */
2485 BIO_write(sbio, ssl_request, 8);
2486 (void)BIO_flush(sbio);
2487
2488 /* Reply will be a single S if SSL is enabled */
2489 bytes = BIO_read(sbio, sbuf, BUFSIZZ);
2490 if (bytes != 1 || sbuf[0] != 'S')
2491 goto shut;
2492 }
2493 break;
2494 case PROTO_NNTP:
2495 {
2496 int foundit = 0;
2497 BIO *fbio = BIO_new(BIO_f_buffer());
2498
2499 BIO_push(fbio, sbio);
2500 BIO_gets(fbio, mbuf, BUFSIZZ);
2501 /* STARTTLS command requires CAPABILITIES... */
2502 BIO_printf(fbio, "CAPABILITIES\r\n");
2503 (void)BIO_flush(fbio);
2504 /* wait for multi-line CAPABILITIES response */
2505 do {
2506 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2507 if (strstr(mbuf, "STARTTLS"))
2508 foundit = 1;
2509 } while (mbuf_len > 1 && mbuf[0] != '.');
2510 (void)BIO_flush(fbio);
2511 BIO_pop(fbio);
2512 BIO_free(fbio);
2513 if (!foundit)
2514 BIO_printf(bio_err,
2515 "Didn't find STARTTLS in server response,"
2516 " trying anyway...\n");
2517 BIO_printf(sbio, "STARTTLS\r\n");
2518 mbuf_len = BIO_read(sbio, mbuf, BUFSIZZ);
2519 if (mbuf_len < 0) {
2520 BIO_printf(bio_err, "BIO_read failed\n");
2521 goto end;
2522 }
2523 mbuf[mbuf_len] = '\0';
2524 if (strstr(mbuf, "382") == NULL) {
2525 BIO_printf(bio_err, "STARTTLS failed: %s", mbuf);
2526 goto shut;
2527 }
2528 }
2529 break;
2530 case PROTO_SIEVE:
2531 {
2532 int foundit = 0;
2533 BIO *fbio = BIO_new(BIO_f_buffer());
2534
2535 BIO_push(fbio, sbio);
2536 /* wait for multi-line response to end from Sieve */
2537 do {
2538 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2539 /*
2540 * According to RFC 5804 § 1.7, capability
2541 * is case-insensitive, make it uppercase
2542 */
2543 if (mbuf_len > 1 && mbuf[0] == '"') {
2544 make_uppercase(mbuf);
2545 if (strncmp(mbuf, "\"STARTTLS\"", 10) == 0)
2546 foundit = 1;
2547 }
2548 } while (mbuf_len > 1 && mbuf[0] == '"');
2549 (void)BIO_flush(fbio);
2550 BIO_pop(fbio);
2551 BIO_free(fbio);
2552 if (!foundit)
2553 BIO_printf(bio_err,
2554 "Didn't find STARTTLS in server response,"
2555 " trying anyway...\n");
2556 BIO_printf(sbio, "STARTTLS\r\n");
2557 mbuf_len = BIO_read(sbio, mbuf, BUFSIZZ);
2558 if (mbuf_len < 0) {
2559 BIO_printf(bio_err, "BIO_read failed\n");
2560 goto end;
2561 }
2562 mbuf[mbuf_len] = '\0';
2563 if (mbuf_len < 2) {
2564 BIO_printf(bio_err, "STARTTLS failed: %s", mbuf);
2565 goto shut;
2566 }
2567 /*
2568 * According to RFC 5804 § 2.2, response codes are case-
2569 * insensitive, make it uppercase but preserve the response.
2570 */
2571 strncpy(sbuf, mbuf, 2);
2572 make_uppercase(sbuf);
2573 if (strncmp(sbuf, "OK", 2) != 0) {
2574 BIO_printf(bio_err, "STARTTLS not supported: %s", mbuf);
2575 goto shut;
2576 }
2577 }
2578 break;
2579 case PROTO_LDAP:
2580 {
2581 /* StartTLS Operation according to RFC 4511 */
2582 static char ldap_tls_genconf[] = "asn1=SEQUENCE:LDAPMessage\n"
2583 "[LDAPMessage]\n"
2584 "messageID=INTEGER:1\n"
2585 "extendedReq=EXPLICIT:23A,IMPLICIT:0C,"
2586 "FORMAT:ASCII,OCT:1.3.6.1.4.1.1466.20037\n";
2587 long errline = -1;
2588 char *genstr = NULL;
2589 int result = -1;
2590 ASN1_TYPE *atyp = NULL;
2591 BIO *ldapbio = BIO_new(BIO_s_mem());
2592 CONF *cnf = NCONF_new(NULL);
2593
2594 if (cnf == NULL) {
2595 BIO_free(ldapbio);
2596 goto end;
2597 }
2598 BIO_puts(ldapbio, ldap_tls_genconf);
2599 if (NCONF_load_bio(cnf, ldapbio, &errline) <= 0) {
2600 BIO_free(ldapbio);
2601 NCONF_free(cnf);
2602 if (errline <= 0) {
2603 BIO_printf(bio_err, "NCONF_load_bio failed\n");
2604 goto end;
2605 } else {
2606 BIO_printf(bio_err, "Error on line %ld\n", errline);
2607 goto end;
2608 }
2609 }
2610 BIO_free(ldapbio);
2611 genstr = NCONF_get_string(cnf, "default", "asn1");
2612 if (genstr == NULL) {
2613 NCONF_free(cnf);
2614 BIO_printf(bio_err, "NCONF_get_string failed\n");
2615 goto end;
2616 }
2617 atyp = ASN1_generate_nconf(genstr, cnf);
2618 if (atyp == NULL) {
2619 NCONF_free(cnf);
2620 BIO_printf(bio_err, "ASN1_generate_nconf failed\n");
2621 goto end;
2622 }
2623 NCONF_free(cnf);
2624
2625 /* Send SSLRequest packet */
2626 BIO_write(sbio, atyp->value.sequence->data,
2627 atyp->value.sequence->length);
2628 (void)BIO_flush(sbio);
2629 ASN1_TYPE_free(atyp);
2630
2631 mbuf_len = BIO_read(sbio, mbuf, BUFSIZZ);
2632 if (mbuf_len < 0) {
2633 BIO_printf(bio_err, "BIO_read failed\n");
2634 goto end;
2635 }
2636 result = ldap_ExtendedResponse_parse(mbuf, mbuf_len);
2637 if (result < 0) {
2638 BIO_printf(bio_err, "ldap_ExtendedResponse_parse failed\n");
2639 goto shut;
2640 } else if (result > 0) {
2641 BIO_printf(bio_err, "STARTTLS failed, LDAP Result Code: %i\n",
2642 result);
2643 goto shut;
2644 }
2645 mbuf_len = 0;
2646 }
2647 break;
2648 }
2649
2650 if (early_data_file != NULL
2651 && ((SSL_get0_session(con) != NULL
2652 && SSL_SESSION_get_max_early_data(SSL_get0_session(con)) > 0)
2653 || (psksess != NULL
2654 && SSL_SESSION_get_max_early_data(psksess) > 0))) {
2655 BIO *edfile = BIO_new_file(early_data_file, "r");
2656 size_t readbytes, writtenbytes;
2657 int finish = 0;
2658
2659 if (edfile == NULL) {
2660 BIO_printf(bio_err, "Cannot open early data file\n");
2661 goto shut;
2662 }
2663
2664 while (!finish) {
2665 if (!BIO_read_ex(edfile, cbuf, BUFSIZZ, &readbytes))
2666 finish = 1;
2667
2668 while (!SSL_write_early_data(con, cbuf, readbytes, &writtenbytes)) {
2669 switch (SSL_get_error(con, 0)) {
2670 case SSL_ERROR_WANT_WRITE:
2671 case SSL_ERROR_WANT_ASYNC:
2672 case SSL_ERROR_WANT_READ:
2673 /* Just keep trying - busy waiting */
2674 continue;
2675 default:
2676 BIO_printf(bio_err, "Error writing early data\n");
2677 BIO_free(edfile);
2678 ERR_print_errors(bio_err);
2679 goto shut;
2680 }
2681 }
2682 }
2683
2684 BIO_free(edfile);
2685 }
2686
2687 for (;;) {
2688 FD_ZERO(&readfds);
2689 FD_ZERO(&writefds);
2690
2691 if ((SSL_version(con) == DTLS1_VERSION) &&
2692 DTLSv1_get_timeout(con, &timeout))
2693 timeoutp = &timeout;
2694 else
2695 timeoutp = NULL;
2696
2697 if (!SSL_is_init_finished(con) && SSL_total_renegotiations(con) == 0
2698 && SSL_get_key_update_type(con) == SSL_KEY_UPDATE_NONE) {
2699 in_init = 1;
2700 tty_on = 0;
2701 } else {
2702 tty_on = 1;
2703 if (in_init) {
2704 in_init = 0;
2705
2706 if (c_brief) {
2707 BIO_puts(bio_err, "CONNECTION ESTABLISHED\n");
2708 print_ssl_summary(con);
2709 }
2710
2711 print_stuff(bio_c_out, con, full_log);
2712 if (full_log > 0)
2713 full_log--;
2714
2715 if (starttls_proto) {
2716 BIO_write(bio_err, mbuf, mbuf_len);
2717 /* We don't need to know any more */
2718 if (!reconnect)
2719 starttls_proto = PROTO_OFF;
2720 }
2721
2722 if (reconnect) {
2723 reconnect--;
2724 BIO_printf(bio_c_out,
2725 "drop connection and then reconnect\n");
2726 do_ssl_shutdown(con);
2727 SSL_set_connect_state(con);
2728 BIO_closesocket(SSL_get_fd(con));
2729 goto re_start;
2730 }
2731 }
2732 }
2733
2734 ssl_pending = read_ssl && SSL_has_pending(con);
2735
2736 if (!ssl_pending) {
2737 #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS)
2738 if (tty_on) {
2739 /*
2740 * Note that select() returns when read _would not block_,
2741 * and EOF satisfies that. To avoid a CPU-hogging loop,
2742 * set the flag so we exit.
2743 */
2744 if (read_tty && !at_eof)
2745 openssl_fdset(fileno_stdin(), &readfds);
2746 #if !defined(OPENSSL_SYS_VMS)
2747 if (write_tty)
2748 openssl_fdset(fileno_stdout(), &writefds);
2749 #endif
2750 }
2751 if (read_ssl)
2752 openssl_fdset(SSL_get_fd(con), &readfds);
2753 if (write_ssl)
2754 openssl_fdset(SSL_get_fd(con), &writefds);
2755 #else
2756 if (!tty_on || !write_tty) {
2757 if (read_ssl)
2758 openssl_fdset(SSL_get_fd(con), &readfds);
2759 if (write_ssl)
2760 openssl_fdset(SSL_get_fd(con), &writefds);
2761 }
2762 #endif
2763
2764 /*
2765 * Note: under VMS with SOCKETSHR the second parameter is
2766 * currently of type (int *) whereas under other systems it is
2767 * (void *) if you don't have a cast it will choke the compiler:
2768 * if you do have a cast then you can either go for (int *) or
2769 * (void *).
2770 */
2771 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
2772 /*
2773 * Under Windows/DOS we make the assumption that we can always
2774 * write to the tty: therefore if we need to write to the tty we
2775 * just fall through. Otherwise we timeout the select every
2776 * second and see if there are any keypresses. Note: this is a
2777 * hack, in a proper Windows application we wouldn't do this.
2778 */
2779 i = 0;
2780 if (!write_tty) {
2781 if (read_tty) {
2782 tv.tv_sec = 1;
2783 tv.tv_usec = 0;
2784 i = select(width, (void *)&readfds, (void *)&writefds,
2785 NULL, &tv);
2786 if (!i && (!has_stdin_waiting() || !read_tty))
2787 continue;
2788 } else
2789 i = select(width, (void *)&readfds, (void *)&writefds,
2790 NULL, timeoutp);
2791 }
2792 #else
2793 i = select(width, (void *)&readfds, (void *)&writefds,
2794 NULL, timeoutp);
2795 #endif
2796 if (i < 0) {
2797 BIO_printf(bio_err, "bad select %d\n",
2798 get_last_socket_error());
2799 goto shut;
2800 }
2801 }
2802
2803 if ((SSL_version(con) == DTLS1_VERSION)
2804 && DTLSv1_handle_timeout(con) > 0) {
2805 BIO_printf(bio_err, "TIMEOUT occurred\n");
2806 }
2807
2808 if (!ssl_pending && FD_ISSET(SSL_get_fd(con), &writefds)) {
2809 k = SSL_write(con, &(cbuf[cbuf_off]), (unsigned int)cbuf_len);
2810 switch (SSL_get_error(con, k)) {
2811 case SSL_ERROR_NONE:
2812 cbuf_off += k;
2813 cbuf_len -= k;
2814 if (k <= 0)
2815 goto end;
2816 /* we have done a write(con,NULL,0); */
2817 if (cbuf_len <= 0) {
2818 read_tty = 1;
2819 write_ssl = 0;
2820 } else { /* if (cbuf_len > 0) */
2821
2822 read_tty = 0;
2823 write_ssl = 1;
2824 }
2825 break;
2826 case SSL_ERROR_WANT_WRITE:
2827 BIO_printf(bio_c_out, "write W BLOCK\n");
2828 write_ssl = 1;
2829 read_tty = 0;
2830 break;
2831 case SSL_ERROR_WANT_ASYNC:
2832 BIO_printf(bio_c_out, "write A BLOCK\n");
2833 wait_for_async(con);
2834 write_ssl = 1;
2835 read_tty = 0;
2836 break;
2837 case SSL_ERROR_WANT_READ:
2838 BIO_printf(bio_c_out, "write R BLOCK\n");
2839 write_tty = 0;
2840 read_ssl = 1;
2841 write_ssl = 0;
2842 break;
2843 case SSL_ERROR_WANT_X509_LOOKUP:
2844 BIO_printf(bio_c_out, "write X BLOCK\n");
2845 break;
2846 case SSL_ERROR_ZERO_RETURN:
2847 if (cbuf_len != 0) {
2848 BIO_printf(bio_c_out, "shutdown\n");
2849 ret = 0;
2850 goto shut;
2851 } else {
2852 read_tty = 1;
2853 write_ssl = 0;
2854 break;
2855 }
2856
2857 case SSL_ERROR_SYSCALL:
2858 if ((k != 0) || (cbuf_len != 0)) {
2859 BIO_printf(bio_err, "write:errno=%d\n",
2860 get_last_socket_error());
2861 goto shut;
2862 } else {
2863 read_tty = 1;
2864 write_ssl = 0;
2865 }
2866 break;
2867 case SSL_ERROR_WANT_ASYNC_JOB:
2868 /* This shouldn't ever happen in s_client - treat as an error */
2869 case SSL_ERROR_SSL:
2870 ERR_print_errors(bio_err);
2871 goto shut;
2872 }
2873 }
2874 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_VMS)
2875 /* Assume Windows/DOS/BeOS can always write */
2876 else if (!ssl_pending && write_tty)
2877 #else
2878 else if (!ssl_pending && FD_ISSET(fileno_stdout(), &writefds))
2879 #endif
2880 {
2881 #ifdef CHARSET_EBCDIC
2882 ascii2ebcdic(&(sbuf[sbuf_off]), &(sbuf[sbuf_off]), sbuf_len);
2883 #endif
2884 i = raw_write_stdout(&(sbuf[sbuf_off]), sbuf_len);
2885
2886 if (i <= 0) {
2887 BIO_printf(bio_c_out, "DONE\n");
2888 ret = 0;
2889 goto shut;
2890 }
2891
2892 sbuf_len -= i;
2893 sbuf_off += i;
2894 if (sbuf_len <= 0) {
2895 read_ssl = 1;
2896 write_tty = 0;
2897 }
2898 } else if (ssl_pending || FD_ISSET(SSL_get_fd(con), &readfds)) {
2899 #ifdef RENEG
2900 {
2901 static int iiii;
2902 if (++iiii == 52) {
2903 SSL_renegotiate(con);
2904 iiii = 0;
2905 }
2906 }
2907 #endif
2908 k = SSL_read(con, sbuf, 1024 /* BUFSIZZ */ );
2909
2910 switch (SSL_get_error(con, k)) {
2911 case SSL_ERROR_NONE:
2912 if (k <= 0)
2913 goto end;
2914 sbuf_off = 0;
2915 sbuf_len = k;
2916
2917 read_ssl = 0;
2918 write_tty = 1;
2919 break;
2920 case SSL_ERROR_WANT_ASYNC:
2921 BIO_printf(bio_c_out, "read A BLOCK\n");
2922 wait_for_async(con);
2923 write_tty = 0;
2924 read_ssl = 1;
2925 if ((read_tty == 0) && (write_ssl == 0))
2926 write_ssl = 1;
2927 break;
2928 case SSL_ERROR_WANT_WRITE:
2929 BIO_printf(bio_c_out, "read W BLOCK\n");
2930 write_ssl = 1;
2931 read_tty = 0;
2932 break;
2933 case SSL_ERROR_WANT_READ:
2934 BIO_printf(bio_c_out, "read R BLOCK\n");
2935 write_tty = 0;
2936 read_ssl = 1;
2937 if ((read_tty == 0) && (write_ssl == 0))
2938 write_ssl = 1;
2939 break;
2940 case SSL_ERROR_WANT_X509_LOOKUP:
2941 BIO_printf(bio_c_out, "read X BLOCK\n");
2942 break;
2943 case SSL_ERROR_SYSCALL:
2944 ret = get_last_socket_error();
2945 if (c_brief)
2946 BIO_puts(bio_err, "CONNECTION CLOSED BY SERVER\n");
2947 else
2948 BIO_printf(bio_err, "read:errno=%d\n", ret);
2949 goto shut;
2950 case SSL_ERROR_ZERO_RETURN:
2951 BIO_printf(bio_c_out, "closed\n");
2952 ret = 0;
2953 goto shut;
2954 case SSL_ERROR_WANT_ASYNC_JOB:
2955 /* This shouldn't ever happen in s_client. Treat as an error */
2956 case SSL_ERROR_SSL:
2957 ERR_print_errors(bio_err);
2958 goto shut;
2959 }
2960 }
2961 /* OPENSSL_SYS_MSDOS includes OPENSSL_SYS_WINDOWS */
2962 #if defined(OPENSSL_SYS_MSDOS)
2963 else if (has_stdin_waiting())
2964 #else
2965 else if (FD_ISSET(fileno_stdin(), &readfds))
2966 #endif
2967 {
2968 if (crlf) {
2969 int j, lf_num;
2970
2971 i = raw_read_stdin(cbuf, BUFSIZZ / 2);
2972 lf_num = 0;
2973 /* both loops are skipped when i <= 0 */
2974 for (j = 0; j < i; j++)
2975 if (cbuf[j] == '\n')
2976 lf_num++;
2977 for (j = i - 1; j >= 0; j--) {
2978 cbuf[j + lf_num] = cbuf[j];
2979 if (cbuf[j] == '\n') {
2980 lf_num--;
2981 i++;
2982 cbuf[j + lf_num] = '\r';
2983 }
2984 }
2985 assert(lf_num == 0);
2986 } else
2987 i = raw_read_stdin(cbuf, BUFSIZZ);
2988 #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS)
2989 if (i == 0)
2990 at_eof = 1;
2991 #endif
2992
2993 if ((!c_ign_eof) && ((i <= 0) || (cbuf[0] == 'Q' && cmdletters))) {
2994 BIO_printf(bio_err, "DONE\n");
2995 ret = 0;
2996 goto shut;
2997 }
2998
2999 if ((!c_ign_eof) && (cbuf[0] == 'R' && cmdletters)) {
3000 BIO_printf(bio_err, "RENEGOTIATING\n");
3001 SSL_renegotiate(con);
3002 cbuf_len = 0;
3003 }
3004
3005 if (!c_ign_eof && (cbuf[0] == 'K' || cbuf[0] == 'k' )
3006 && cmdletters) {
3007 BIO_printf(bio_err, "KEYUPDATE\n");
3008 SSL_key_update(con,
3009 cbuf[0] == 'K' ? SSL_KEY_UPDATE_REQUESTED
3010 : SSL_KEY_UPDATE_NOT_REQUESTED);
3011 cbuf_len = 0;
3012 }
3013 #ifndef OPENSSL_NO_HEARTBEATS
3014 else if ((!c_ign_eof) && (cbuf[0] == 'B' && cmdletters)) {
3015 BIO_printf(bio_err, "HEARTBEATING\n");
3016 SSL_heartbeat(con);
3017 cbuf_len = 0;
3018 }
3019 #endif
3020 else {
3021 cbuf_len = i;
3022 cbuf_off = 0;
3023 #ifdef CHARSET_EBCDIC
3024 ebcdic2ascii(cbuf, cbuf, i);
3025 #endif
3026 }
3027
3028 write_ssl = 1;
3029 read_tty = 0;
3030 }
3031 }
3032
3033 ret = 0;
3034 shut:
3035 if (in_init)
3036 print_stuff(bio_c_out, con, full_log);
3037 do_ssl_shutdown(con);
3038
3039 /*
3040 * Give the socket time to send its last data before we close it.
3041 * No amount of setting SO_LINGER etc on the socket seems to persuade
3042 * Windows to send the data before closing the socket...but sleeping
3043 * for a short time seems to do it (units in ms)
3044 * TODO: Find a better way to do this
3045 */
3046 #if defined(OPENSSL_SYS_WINDOWS)
3047 Sleep(50);
3048 #elif defined(OPENSSL_SYS_CYGWIN)
3049 usleep(50000);
3050 #endif
3051
3052 /*
3053 * If we ended with an alert being sent, but still with data in the
3054 * network buffer to be read, then calling BIO_closesocket() will
3055 * result in a TCP-RST being sent. On some platforms (notably
3056 * Windows) then this will result in the peer immediately abandoning
3057 * the connection including any buffered alert data before it has
3058 * had a chance to be read. Shutting down the sending side first,
3059 * and then closing the socket sends TCP-FIN first followed by
3060 * TCP-RST. This seems to allow the peer to read the alert data.
3061 */
3062 shutdown(SSL_get_fd(con), 1); /* SHUT_WR */
3063 BIO_closesocket(SSL_get_fd(con));
3064 end:
3065 if (con != NULL) {
3066 if (prexit != 0)
3067 print_stuff(bio_c_out, con, 1);
3068 SSL_free(con);
3069 }
3070 SSL_SESSION_free(psksess);
3071 #if !defined(OPENSSL_NO_NEXTPROTONEG)
3072 OPENSSL_free(next_proto.data);
3073 #endif
3074 SSL_CTX_free(ctx);
3075 set_keylog_file(NULL, NULL);
3076 X509_free(cert);
3077 sk_X509_CRL_pop_free(crls, X509_CRL_free);
3078 EVP_PKEY_free(key);
3079 sk_X509_pop_free(chain, X509_free);
3080 OPENSSL_free(pass);
3081 #ifndef OPENSSL_NO_SRP
3082 OPENSSL_free(srp_arg.srppassin);
3083 #endif
3084 OPENSSL_free(connectstr);
3085 OPENSSL_free(host);
3086 OPENSSL_free(port);
3087 X509_VERIFY_PARAM_free(vpm);
3088 ssl_excert_free(exc);
3089 sk_OPENSSL_STRING_free(ssl_args);
3090 sk_OPENSSL_STRING_free(dane_tlsa_rrset);
3091 SSL_CONF_CTX_free(cctx);
3092 OPENSSL_clear_free(cbuf, BUFSIZZ);
3093 OPENSSL_clear_free(sbuf, BUFSIZZ);
3094 OPENSSL_clear_free(mbuf, BUFSIZZ);
3095 release_engine(e);
3096 BIO_free(bio_c_out);
3097 bio_c_out = NULL;
3098 BIO_free(bio_c_msg);
3099 bio_c_msg = NULL;
3100 return ret;
3101 }
3102
3103 static void print_stuff(BIO *bio, SSL *s, int full)
3104 {
3105 X509 *peer = NULL;
3106 STACK_OF(X509) *sk;
3107 const SSL_CIPHER *c;
3108 int i;
3109 #ifndef OPENSSL_NO_COMP
3110 const COMP_METHOD *comp, *expansion;
3111 #endif
3112 unsigned char *exportedkeymat;
3113 #ifndef OPENSSL_NO_CT
3114 const SSL_CTX *ctx = SSL_get_SSL_CTX(s);
3115 #endif
3116
3117 if (full) {
3118 int got_a_chain = 0;
3119
3120 sk = SSL_get_peer_cert_chain(s);
3121 if (sk != NULL) {
3122 got_a_chain = 1;
3123
3124 BIO_printf(bio, "---\nCertificate chain\n");
3125 for (i = 0; i < sk_X509_num(sk); i++) {
3126 BIO_printf(bio, "%2d s:", i);
3127 X509_NAME_print_ex(bio, X509_get_subject_name(sk_X509_value(sk, i)), 0, get_nameopt());
3128 BIO_puts(bio, "\n");
3129 BIO_printf(bio, " i:");
3130 X509_NAME_print_ex(bio, X509_get_issuer_name(sk_X509_value(sk, i)), 0, get_nameopt());
3131 BIO_puts(bio, "\n");
3132 if (c_showcerts)
3133 PEM_write_bio_X509(bio, sk_X509_value(sk, i));
3134 }
3135 }
3136
3137 BIO_printf(bio, "---\n");
3138 peer = SSL_get_peer_certificate(s);
3139 if (peer != NULL) {
3140 BIO_printf(bio, "Server certificate\n");
3141
3142 /* Redundant if we showed the whole chain */
3143 if (!(c_showcerts && got_a_chain))
3144 PEM_write_bio_X509(bio, peer);
3145 dump_cert_text(bio, peer);
3146 } else {
3147 BIO_printf(bio, "no peer certificate available\n");
3148 }
3149 print_ca_names(bio, s);
3150
3151 ssl_print_sigalgs(bio, s);
3152 ssl_print_tmp_key(bio, s);
3153
3154 #ifndef OPENSSL_NO_CT
3155 /*
3156 * When the SSL session is anonymous, or resumed via an abbreviated
3157 * handshake, no SCTs are provided as part of the handshake. While in
3158 * a resumed session SCTs may be present in the session's certificate,
3159 * no callbacks are invoked to revalidate these, and in any case that
3160 * set of SCTs may be incomplete. Thus it makes little sense to
3161 * attempt to display SCTs from a resumed session's certificate, and of
3162 * course none are associated with an anonymous peer.
3163 */
3164 if (peer != NULL && !SSL_session_reused(s) && SSL_ct_is_enabled(s)) {
3165 const STACK_OF(SCT) *scts = SSL_get0_peer_scts(s);
3166 int sct_count = scts != NULL ? sk_SCT_num(scts) : 0;
3167
3168 BIO_printf(bio, "---\nSCTs present (%i)\n", sct_count);
3169 if (sct_count > 0) {
3170 const CTLOG_STORE *log_store = SSL_CTX_get0_ctlog_store(ctx);
3171
3172 BIO_printf(bio, "---\n");
3173 for (i = 0; i < sct_count; ++i) {
3174 SCT *sct = sk_SCT_value(scts, i);
3175
3176 BIO_printf(bio, "SCT validation status: %s\n",
3177 SCT_validation_status_string(sct));
3178 SCT_print(sct, bio, 0, log_store);
3179 if (i < sct_count - 1)
3180 BIO_printf(bio, "\n---\n");
3181 }
3182 BIO_printf(bio, "\n");
3183 }
3184 }
3185 #endif
3186
3187 BIO_printf(bio,
3188 "---\nSSL handshake has read %ju bytes "
3189 "and written %ju bytes\n",
3190 BIO_number_read(SSL_get_rbio(s)),
3191 BIO_number_written(SSL_get_wbio(s)));
3192 }
3193 print_verify_detail(s, bio);
3194 BIO_printf(bio, (SSL_session_reused(s) ? "---\nReused, " : "---\nNew, "));
3195 c = SSL_get_current_cipher(s);
3196 BIO_printf(bio, "%s, Cipher is %s\n",
3197 SSL_CIPHER_get_version(c), SSL_CIPHER_get_name(c));
3198 if (peer != NULL) {
3199 EVP_PKEY *pktmp;
3200
3201 pktmp = X509_get0_pubkey(peer);
3202 BIO_printf(bio, "Server public key is %d bit\n",
3203 EVP_PKEY_bits(pktmp));
3204 }
3205 BIO_printf(bio, "Secure Renegotiation IS%s supported\n",
3206 SSL_get_secure_renegotiation_support(s) ? "" : " NOT");
3207 #ifndef OPENSSL_NO_COMP
3208 comp = SSL_get_current_compression(s);
3209 expansion = SSL_get_current_expansion(s);
3210 BIO_printf(bio, "Compression: %s\n",
3211 comp ? SSL_COMP_get_name(comp) : "NONE");
3212 BIO_printf(bio, "Expansion: %s\n",
3213 expansion ? SSL_COMP_get_name(expansion) : "NONE");
3214 #endif
3215
3216 #ifdef SSL_DEBUG
3217 {
3218 /* Print out local port of connection: useful for debugging */
3219 int sock;
3220 union BIO_sock_info_u info;
3221
3222 sock = SSL_get_fd(s);
3223 if ((info.addr = BIO_ADDR_new()) != NULL
3224 && BIO_sock_info(sock, BIO_SOCK_INFO_ADDRESS, &info)) {
3225 BIO_printf(bio_c_out, "LOCAL PORT is %u\n",
3226 ntohs(BIO_ADDR_rawport(info.addr)));
3227 }
3228 BIO_ADDR_free(info.addr);
3229 }
3230 #endif
3231
3232 #if !defined(OPENSSL_NO_NEXTPROTONEG)
3233 if (next_proto.status != -1) {
3234 const unsigned char *proto;
3235 unsigned int proto_len;
3236 SSL_get0_next_proto_negotiated(s, &proto, &proto_len);
3237 BIO_printf(bio, "Next protocol: (%d) ", next_proto.status);
3238 BIO_write(bio, proto, proto_len);
3239 BIO_write(bio, "\n", 1);
3240 }
3241 #endif
3242 {
3243 const unsigned char *proto;
3244 unsigned int proto_len;
3245 SSL_get0_alpn_selected(s, &proto, &proto_len);
3246 if (proto_len > 0) {
3247 BIO_printf(bio, "ALPN protocol: ");
3248 BIO_write(bio, proto, proto_len);
3249 BIO_write(bio, "\n", 1);
3250 } else
3251 BIO_printf(bio, "No ALPN negotiated\n");
3252 }
3253
3254 #ifndef OPENSSL_NO_SRTP
3255 {
3256 SRTP_PROTECTION_PROFILE *srtp_profile =
3257 SSL_get_selected_srtp_profile(s);
3258
3259 if (srtp_profile)
3260 BIO_printf(bio, "SRTP Extension negotiated, profile=%s\n",
3261 srtp_profile->name);
3262 }
3263 #endif
3264
3265 if (SSL_version(s) == TLS1_3_VERSION) {
3266 switch (SSL_get_early_data_status(s)) {
3267 case SSL_EARLY_DATA_NOT_SENT:
3268 BIO_printf(bio, "Early data was not sent\n");
3269 break;
3270
3271 case SSL_EARLY_DATA_REJECTED:
3272 BIO_printf(bio, "Early data was rejected\n");
3273 break;
3274
3275 case SSL_EARLY_DATA_ACCEPTED:
3276 BIO_printf(bio, "Early data was accepted\n");
3277 break;
3278
3279 }
3280 }
3281
3282 SSL_SESSION_print(bio, SSL_get_session(s));
3283 if (SSL_get_session(s) != NULL && keymatexportlabel != NULL) {
3284 BIO_printf(bio, "Keying material exporter:\n");
3285 BIO_printf(bio, " Label: '%s'\n", keymatexportlabel);
3286 BIO_printf(bio, " Length: %i bytes\n", keymatexportlen);
3287 exportedkeymat = app_malloc(keymatexportlen, "export key");
3288 if (!SSL_export_keying_material(s, exportedkeymat,
3289 keymatexportlen,
3290 keymatexportlabel,
3291 strlen(keymatexportlabel),
3292 NULL, 0, 0)) {
3293 BIO_printf(bio, " Error\n");
3294 } else {
3295 BIO_printf(bio, " Keying material: ");
3296 for (i = 0; i < keymatexportlen; i++)
3297 BIO_printf(bio, "%02X", exportedkeymat[i]);
3298 BIO_printf(bio, "\n");
3299 }
3300 OPENSSL_free(exportedkeymat);
3301 }
3302 BIO_printf(bio, "---\n");
3303 X509_free(peer);
3304 /* flush, or debugging output gets mixed with http response */
3305 (void)BIO_flush(bio);
3306 }
3307
3308 # ifndef OPENSSL_NO_OCSP
3309 static int ocsp_resp_cb(SSL *s, void *arg)
3310 {
3311 const unsigned char *p;
3312 int len;
3313 OCSP_RESPONSE *rsp;
3314 len = SSL_get_tlsext_status_ocsp_resp(s, &p);
3315 BIO_puts(arg, "OCSP response: ");
3316 if (p == NULL) {
3317 BIO_puts(arg, "no response sent\n");
3318 return 1;
3319 }
3320 rsp = d2i_OCSP_RESPONSE(NULL, &p, len);
3321 if (rsp == NULL) {
3322 BIO_puts(arg, "response parse error\n");
3323 BIO_dump_indent(arg, (char *)p, len, 4);
3324 return 0;
3325 }
3326 BIO_puts(arg, "\n======================================\n");
3327 OCSP_RESPONSE_print(arg, rsp, 0);
3328 BIO_puts(arg, "======================================\n");
3329 OCSP_RESPONSE_free(rsp);
3330 return 1;
3331 }
3332 # endif
3333
3334 static int ldap_ExtendedResponse_parse(const char *buf, long rem)
3335 {
3336 const unsigned char *cur, *end;
3337 long len;
3338 int tag, xclass, inf, ret = -1;
3339
3340 cur = (const unsigned char *)buf;
3341 end = cur + rem;
3342
3343 /*
3344 * From RFC 4511:
3345 *
3346 * LDAPMessage ::= SEQUENCE {
3347 * messageID MessageID,
3348 * protocolOp CHOICE {
3349 * ...
3350 * extendedResp ExtendedResponse,
3351 * ... },
3352 * controls [0] Controls OPTIONAL }
3353 *
3354 * ExtendedResponse ::= [APPLICATION 24] SEQUENCE {
3355 * COMPONENTS OF LDAPResult,
3356 * responseName [10] LDAPOID OPTIONAL,
3357 * responseValue [11] OCTET STRING OPTIONAL }
3358 *
3359 * LDAPResult ::= SEQUENCE {
3360 * resultCode ENUMERATED {
3361 * success (0),
3362 * ...
3363 * other (80),
3364 * ... },
3365 * matchedDN LDAPDN,
3366 * diagnosticMessage LDAPString,
3367 * referral [3] Referral OPTIONAL }
3368 */
3369
3370 /* pull SEQUENCE */
3371 inf = ASN1_get_object(&cur, &len, &tag, &xclass, rem);
3372 if (inf != V_ASN1_CONSTRUCTED || tag != V_ASN1_SEQUENCE ||
3373 (rem = end - cur, len > rem)) {
3374 BIO_printf(bio_err, "Unexpected LDAP response\n");
3375 goto end;
3376 }
3377
3378 rem = len; /* ensure that we don't overstep the SEQUENCE */
3379
3380 /* pull MessageID */
3381 inf = ASN1_get_object(&cur, &len, &tag, &xclass, rem);
3382 if (inf != V_ASN1_UNIVERSAL || tag != V_ASN1_INTEGER ||
3383 (rem = end - cur, len > rem)) {
3384 BIO_printf(bio_err, "No MessageID\n");
3385 goto end;
3386 }
3387
3388 cur += len; /* shall we check for MessageId match or just skip? */
3389
3390 /* pull [APPLICATION 24] */
3391 rem = end - cur;
3392 inf = ASN1_get_object(&cur, &len, &tag, &xclass, rem);
3393 if (inf != V_ASN1_CONSTRUCTED || xclass != V_ASN1_APPLICATION ||
3394 tag != 24) {
3395 BIO_printf(bio_err, "Not ExtendedResponse\n");
3396 goto end;
3397 }
3398
3399 /* pull resultCode */
3400 rem = end - cur;
3401 inf = ASN1_get_object(&cur, &len, &tag, &xclass, rem);
3402 if (inf != V_ASN1_UNIVERSAL || tag != V_ASN1_ENUMERATED || len == 0 ||
3403 (rem = end - cur, len > rem)) {
3404 BIO_printf(bio_err, "Not LDAPResult\n");
3405 goto end;
3406 }
3407
3408 /* len should always be one, but just in case... */
3409 for (ret = 0, inf = 0; inf < len; inf++) {
3410 ret <<= 8;
3411 ret |= cur[inf];
3412 }
3413 /* There is more data, but we don't care... */
3414 end:
3415 return ret;
3416 }
3417
3418 #endif /* OPENSSL_NO_SOCK */
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