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