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s_client: fix not to send a command letter of R
[thirdparty/openssl.git] / apps / s_client.c
1 /*
2 * Copyright 1995-2018 The OpenSSL Project Authors. All Rights Reserved.
3 * Copyright 2005 Nokia. All rights reserved.
4 *
5 * Licensed under the 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 #include "e_os.h"
12 #include <ctype.h>
13 #include <stdio.h>
14 #include <stdlib.h>
15 #include <string.h>
16 #include <errno.h>
17 #include <openssl/e_os2.h>
18
19 #ifndef OPENSSL_NO_SOCK
20
21 /*
22 * With IPv6, it looks like Digital has mixed up the proper order of
23 * recursive header file inclusion, resulting in the compiler complaining
24 * that u_int isn't defined, but only if _POSIX_C_SOURCE is defined, which is
25 * needed to have fileno() declared correctly... So let's define u_int
26 */
27 #if defined(OPENSSL_SYS_VMS_DECC) && !defined(__U_INT)
28 # define __U_INT
29 typedef unsigned int u_int;
30 #endif
31
32 #include "apps.h"
33 #include "progs.h"
34 #include <openssl/x509.h>
35 #include <openssl/ssl.h>
36 #include <openssl/err.h>
37 #include <openssl/pem.h>
38 #include <openssl/rand.h>
39 #include <openssl/ocsp.h>
40 #include <openssl/bn.h>
41 #include <openssl/async.h>
42 #ifndef OPENSSL_NO_SRP
43 # include <openssl/srp.h>
44 #endif
45 #ifndef OPENSSL_NO_CT
46 # include <openssl/ct.h>
47 #endif
48 #include "s_apps.h"
49 #include "timeouts.h"
50 #include "internal/sockets.h"
51
52 #if defined(__has_feature)
53 # if __has_feature(memory_sanitizer)
54 # include <sanitizer/msan_interface.h>
55 # endif
56 #endif
57
58 #undef BUFSIZZ
59 #define BUFSIZZ 1024*8
60 #define S_CLIENT_IRC_READ_TIMEOUT 8
61
62 static char *prog;
63 static int c_debug = 0;
64 static int c_showcerts = 0;
65 static char *keymatexportlabel = NULL;
66 static int keymatexportlen = 20;
67 static BIO *bio_c_out = NULL;
68 static int c_quiet = 0;
69 static char *sess_out = NULL;
70 static SSL_SESSION *psksess = NULL;
71
72 static void print_stuff(BIO *berr, SSL *con, int full);
73 #ifndef OPENSSL_NO_OCSP
74 static int ocsp_resp_cb(SSL *s, void *arg);
75 #endif
76 static int ldap_ExtendedResponse_parse(const char *buf, long rem);
77 static char *base64encode (const void *buf, size_t len);
78
79 static int saved_errno;
80
81 static void save_errno(void)
82 {
83 saved_errno = errno;
84 errno = 0;
85 }
86
87 static int restore_errno(void)
88 {
89 int ret = errno;
90 errno = saved_errno;
91 return ret;
92 }
93
94 static void do_ssl_shutdown(SSL *ssl)
95 {
96 int ret;
97
98 do {
99 /* We only do unidirectional shutdown */
100 ret = SSL_shutdown(ssl);
101 if (ret < 0) {
102 switch (SSL_get_error(ssl, ret)) {
103 case SSL_ERROR_WANT_READ:
104 case SSL_ERROR_WANT_WRITE:
105 case SSL_ERROR_WANT_ASYNC:
106 case SSL_ERROR_WANT_ASYNC_JOB:
107 /* We just do busy waiting. Nothing clever */
108 continue;
109 }
110 ret = 0;
111 }
112 } while (ret < 0);
113 }
114
115 /* Default PSK identity and key */
116 static char *psk_identity = "Client_identity";
117
118 #ifndef OPENSSL_NO_PSK
119 static unsigned int psk_client_cb(SSL *ssl, const char *hint, char *identity,
120 unsigned int max_identity_len,
121 unsigned char *psk,
122 unsigned int max_psk_len)
123 {
124 int ret;
125 long key_len;
126 unsigned char *key;
127
128 if (c_debug)
129 BIO_printf(bio_c_out, "psk_client_cb\n");
130 if (!hint) {
131 /* no ServerKeyExchange message */
132 if (c_debug)
133 BIO_printf(bio_c_out,
134 "NULL received PSK identity hint, continuing anyway\n");
135 } else if (c_debug) {
136 BIO_printf(bio_c_out, "Received PSK identity hint '%s'\n", hint);
137 }
138
139 /*
140 * lookup PSK identity and PSK key based on the given identity hint here
141 */
142 ret = BIO_snprintf(identity, max_identity_len, "%s", psk_identity);
143 if (ret < 0 || (unsigned int)ret > max_identity_len)
144 goto out_err;
145 if (c_debug)
146 BIO_printf(bio_c_out, "created identity '%s' len=%d\n", identity,
147 ret);
148
149 /* convert the PSK key to binary */
150 key = OPENSSL_hexstr2buf(psk_key, &key_len);
151 if (key == NULL) {
152 BIO_printf(bio_err, "Could not convert PSK key '%s' to buffer\n",
153 psk_key);
154 return 0;
155 }
156 if (max_psk_len > INT_MAX || key_len > (long)max_psk_len) {
157 BIO_printf(bio_err,
158 "psk buffer of callback is too small (%d) for key (%ld)\n",
159 max_psk_len, key_len);
160 OPENSSL_free(key);
161 return 0;
162 }
163
164 memcpy(psk, key, key_len);
165 OPENSSL_free(key);
166
167 if (c_debug)
168 BIO_printf(bio_c_out, "created PSK len=%ld\n", key_len);
169
170 return key_len;
171 out_err:
172 if (c_debug)
173 BIO_printf(bio_err, "Error in PSK client callback\n");
174 return 0;
175 }
176 #endif
177
178 const unsigned char tls13_aes128gcmsha256_id[] = { 0x13, 0x01 };
179 const unsigned char tls13_aes256gcmsha384_id[] = { 0x13, 0x02 };
180
181 static int psk_use_session_cb(SSL *s, const EVP_MD *md,
182 const unsigned char **id, size_t *idlen,
183 SSL_SESSION **sess)
184 {
185 SSL_SESSION *usesess = NULL;
186 const SSL_CIPHER *cipher = NULL;
187
188 if (psksess != NULL) {
189 SSL_SESSION_up_ref(psksess);
190 usesess = psksess;
191 } else {
192 long key_len;
193 unsigned char *key = OPENSSL_hexstr2buf(psk_key, &key_len);
194
195 if (key == NULL) {
196 BIO_printf(bio_err, "Could not convert PSK key '%s' to buffer\n",
197 psk_key);
198 return 0;
199 }
200
201 /* We default to SHA-256 */
202 cipher = SSL_CIPHER_find(s, tls13_aes128gcmsha256_id);
203 if (cipher == NULL) {
204 BIO_printf(bio_err, "Error finding suitable ciphersuite\n");
205 OPENSSL_free(key);
206 return 0;
207 }
208
209 usesess = SSL_SESSION_new();
210 if (usesess == NULL
211 || !SSL_SESSION_set1_master_key(usesess, key, key_len)
212 || !SSL_SESSION_set_cipher(usesess, cipher)
213 || !SSL_SESSION_set_protocol_version(usesess, TLS1_3_VERSION)) {
214 OPENSSL_free(key);
215 goto err;
216 }
217 OPENSSL_free(key);
218 }
219
220 cipher = SSL_SESSION_get0_cipher(usesess);
221 if (cipher == NULL)
222 goto err;
223
224 if (md != NULL && SSL_CIPHER_get_handshake_digest(cipher) != md) {
225 /* PSK not usable, ignore it */
226 *id = NULL;
227 *idlen = 0;
228 *sess = NULL;
229 SSL_SESSION_free(usesess);
230 } else {
231 *sess = usesess;
232 *id = (unsigned char *)psk_identity;
233 *idlen = strlen(psk_identity);
234 }
235
236 return 1;
237
238 err:
239 SSL_SESSION_free(usesess);
240 return 0;
241 }
242
243 /* This is a context that we pass to callbacks */
244 typedef struct tlsextctx_st {
245 BIO *biodebug;
246 int ack;
247 } tlsextctx;
248
249 static int ssl_servername_cb(SSL *s, int *ad, void *arg)
250 {
251 tlsextctx *p = (tlsextctx *) arg;
252 const char *hn = SSL_get_servername(s, TLSEXT_NAMETYPE_host_name);
253 if (SSL_get_servername_type(s) != -1)
254 p->ack = !SSL_session_reused(s) && hn != NULL;
255 else
256 BIO_printf(bio_err, "Can't use SSL_get_servername\n");
257
258 return SSL_TLSEXT_ERR_OK;
259 }
260
261 #ifndef OPENSSL_NO_SRP
262
263 /* This is a context that we pass to all callbacks */
264 typedef struct srp_arg_st {
265 char *srppassin;
266 char *srplogin;
267 int msg; /* copy from c_msg */
268 int debug; /* copy from c_debug */
269 int amp; /* allow more groups */
270 int strength; /* minimal size for N */
271 } SRP_ARG;
272
273 # define SRP_NUMBER_ITERATIONS_FOR_PRIME 64
274
275 static int srp_Verify_N_and_g(const BIGNUM *N, const BIGNUM *g)
276 {
277 BN_CTX *bn_ctx = BN_CTX_new();
278 BIGNUM *p = BN_new();
279 BIGNUM *r = BN_new();
280 int ret =
281 g != NULL && N != NULL && bn_ctx != NULL && BN_is_odd(N) &&
282 BN_is_prime_ex(N, SRP_NUMBER_ITERATIONS_FOR_PRIME, bn_ctx, NULL) == 1 &&
283 p != NULL && BN_rshift1(p, N) &&
284 /* p = (N-1)/2 */
285 BN_is_prime_ex(p, SRP_NUMBER_ITERATIONS_FOR_PRIME, bn_ctx, NULL) == 1 &&
286 r != NULL &&
287 /* verify g^((N-1)/2) == -1 (mod N) */
288 BN_mod_exp(r, g, p, N, bn_ctx) &&
289 BN_add_word(r, 1) && BN_cmp(r, N) == 0;
290
291 BN_free(r);
292 BN_free(p);
293 BN_CTX_free(bn_ctx);
294 return ret;
295 }
296
297 /*-
298 * This callback is used here for two purposes:
299 * - extended debugging
300 * - making some primality tests for unknown groups
301 * The callback is only called for a non default group.
302 *
303 * An application does not need the call back at all if
304 * only the standard groups are used. In real life situations,
305 * client and server already share well known groups,
306 * thus there is no need to verify them.
307 * Furthermore, in case that a server actually proposes a group that
308 * is not one of those defined in RFC 5054, it is more appropriate
309 * to add the group to a static list and then compare since
310 * primality tests are rather cpu consuming.
311 */
312
313 static int ssl_srp_verify_param_cb(SSL *s, void *arg)
314 {
315 SRP_ARG *srp_arg = (SRP_ARG *)arg;
316 BIGNUM *N = NULL, *g = NULL;
317
318 if (((N = SSL_get_srp_N(s)) == NULL) || ((g = SSL_get_srp_g(s)) == NULL))
319 return 0;
320 if (srp_arg->debug || srp_arg->msg || srp_arg->amp == 1) {
321 BIO_printf(bio_err, "SRP parameters:\n");
322 BIO_printf(bio_err, "\tN=");
323 BN_print(bio_err, N);
324 BIO_printf(bio_err, "\n\tg=");
325 BN_print(bio_err, g);
326 BIO_printf(bio_err, "\n");
327 }
328
329 if (SRP_check_known_gN_param(g, N))
330 return 1;
331
332 if (srp_arg->amp == 1) {
333 if (srp_arg->debug)
334 BIO_printf(bio_err,
335 "SRP param N and g are not known params, going to check deeper.\n");
336
337 /*
338 * The srp_moregroups is a real debugging feature. Implementors
339 * should rather add the value to the known ones. The minimal size
340 * has already been tested.
341 */
342 if (BN_num_bits(g) <= BN_BITS && srp_Verify_N_and_g(N, g))
343 return 1;
344 }
345 BIO_printf(bio_err, "SRP param N and g rejected.\n");
346 return 0;
347 }
348
349 # define PWD_STRLEN 1024
350
351 static char *ssl_give_srp_client_pwd_cb(SSL *s, void *arg)
352 {
353 SRP_ARG *srp_arg = (SRP_ARG *)arg;
354 char *pass = app_malloc(PWD_STRLEN + 1, "SRP password buffer");
355 PW_CB_DATA cb_tmp;
356 int l;
357
358 cb_tmp.password = (char *)srp_arg->srppassin;
359 cb_tmp.prompt_info = "SRP user";
360 if ((l = password_callback(pass, PWD_STRLEN, 0, &cb_tmp)) < 0) {
361 BIO_printf(bio_err, "Can't read Password\n");
362 OPENSSL_free(pass);
363 return NULL;
364 }
365 *(pass + l) = '\0';
366
367 return pass;
368 }
369
370 #endif
371
372 #ifndef OPENSSL_NO_NEXTPROTONEG
373 /* This the context that we pass to next_proto_cb */
374 typedef struct tlsextnextprotoctx_st {
375 unsigned char *data;
376 size_t len;
377 int status;
378 } tlsextnextprotoctx;
379
380 static tlsextnextprotoctx next_proto;
381
382 static int next_proto_cb(SSL *s, unsigned char **out, unsigned char *outlen,
383 const unsigned char *in, unsigned int inlen,
384 void *arg)
385 {
386 tlsextnextprotoctx *ctx = arg;
387
388 if (!c_quiet) {
389 /* We can assume that |in| is syntactically valid. */
390 unsigned i;
391 BIO_printf(bio_c_out, "Protocols advertised by server: ");
392 for (i = 0; i < inlen;) {
393 if (i)
394 BIO_write(bio_c_out, ", ", 2);
395 BIO_write(bio_c_out, &in[i + 1], in[i]);
396 i += in[i] + 1;
397 }
398 BIO_write(bio_c_out, "\n", 1);
399 }
400
401 ctx->status =
402 SSL_select_next_proto(out, outlen, in, inlen, ctx->data, ctx->len);
403 return SSL_TLSEXT_ERR_OK;
404 }
405 #endif /* ndef OPENSSL_NO_NEXTPROTONEG */
406
407 static int serverinfo_cli_parse_cb(SSL *s, unsigned int ext_type,
408 const unsigned char *in, size_t inlen,
409 int *al, void *arg)
410 {
411 char pem_name[100];
412 unsigned char ext_buf[4 + 65536];
413
414 /* Reconstruct the type/len fields prior to extension data */
415 inlen &= 0xffff; /* for formal memcmpy correctness */
416 ext_buf[0] = (unsigned char)(ext_type >> 8);
417 ext_buf[1] = (unsigned char)(ext_type);
418 ext_buf[2] = (unsigned char)(inlen >> 8);
419 ext_buf[3] = (unsigned char)(inlen);
420 memcpy(ext_buf + 4, in, inlen);
421
422 BIO_snprintf(pem_name, sizeof(pem_name), "SERVERINFO FOR EXTENSION %d",
423 ext_type);
424 PEM_write_bio(bio_c_out, pem_name, "", ext_buf, 4 + inlen);
425 return 1;
426 }
427
428 /*
429 * Hex decoder that tolerates optional whitespace. Returns number of bytes
430 * produced, advances inptr to end of input string.
431 */
432 static ossl_ssize_t hexdecode(const char **inptr, void *result)
433 {
434 unsigned char **out = (unsigned char **)result;
435 const char *in = *inptr;
436 unsigned char *ret = app_malloc(strlen(in) / 2, "hexdecode");
437 unsigned char *cp = ret;
438 uint8_t byte;
439 int nibble = 0;
440
441 if (ret == NULL)
442 return -1;
443
444 for (byte = 0; *in; ++in) {
445 int x;
446
447 if (isspace(_UC(*in)))
448 continue;
449 x = OPENSSL_hexchar2int(*in);
450 if (x < 0) {
451 OPENSSL_free(ret);
452 return 0;
453 }
454 byte |= (char)x;
455 if ((nibble ^= 1) == 0) {
456 *cp++ = byte;
457 byte = 0;
458 } else {
459 byte <<= 4;
460 }
461 }
462 if (nibble != 0) {
463 OPENSSL_free(ret);
464 return 0;
465 }
466 *inptr = in;
467
468 return cp - (*out = ret);
469 }
470
471 /*
472 * Decode unsigned 0..255, returns 1 on success, <= 0 on failure. Advances
473 * inptr to next field skipping leading whitespace.
474 */
475 static ossl_ssize_t checked_uint8(const char **inptr, void *out)
476 {
477 uint8_t *result = (uint8_t *)out;
478 const char *in = *inptr;
479 char *endp;
480 long v;
481 int e;
482
483 save_errno();
484 v = strtol(in, &endp, 10);
485 e = restore_errno();
486
487 if (((v == LONG_MIN || v == LONG_MAX) && e == ERANGE) ||
488 endp == in || !isspace(_UC(*endp)) ||
489 v != (*result = (uint8_t) v)) {
490 return -1;
491 }
492 for (in = endp; isspace(_UC(*in)); ++in)
493 continue;
494
495 *inptr = in;
496 return 1;
497 }
498
499 struct tlsa_field {
500 void *var;
501 const char *name;
502 ossl_ssize_t (*parser)(const char **, void *);
503 };
504
505 static int tlsa_import_rr(SSL *con, const char *rrdata)
506 {
507 /* Not necessary to re-init these values; the "parsers" do that. */
508 static uint8_t usage;
509 static uint8_t selector;
510 static uint8_t mtype;
511 static unsigned char *data;
512 static struct tlsa_field tlsa_fields[] = {
513 { &usage, "usage", checked_uint8 },
514 { &selector, "selector", checked_uint8 },
515 { &mtype, "mtype", checked_uint8 },
516 { &data, "data", hexdecode },
517 { NULL, }
518 };
519 struct tlsa_field *f;
520 int ret;
521 const char *cp = rrdata;
522 ossl_ssize_t len = 0;
523
524 for (f = tlsa_fields; f->var; ++f) {
525 /* Returns number of bytes produced, advances cp to next field */
526 if ((len = f->parser(&cp, f->var)) <= 0) {
527 BIO_printf(bio_err, "%s: warning: bad TLSA %s field in: %s\n",
528 prog, f->name, rrdata);
529 return 0;
530 }
531 }
532 /* The data field is last, so len is its length */
533 ret = SSL_dane_tlsa_add(con, usage, selector, mtype, data, len);
534 OPENSSL_free(data);
535
536 if (ret == 0) {
537 ERR_print_errors(bio_err);
538 BIO_printf(bio_err, "%s: warning: unusable TLSA rrdata: %s\n",
539 prog, rrdata);
540 return 0;
541 }
542 if (ret < 0) {
543 ERR_print_errors(bio_err);
544 BIO_printf(bio_err, "%s: warning: error loading TLSA rrdata: %s\n",
545 prog, rrdata);
546 return 0;
547 }
548 return ret;
549 }
550
551 static int tlsa_import_rrset(SSL *con, STACK_OF(OPENSSL_STRING) *rrset)
552 {
553 int num = sk_OPENSSL_STRING_num(rrset);
554 int count = 0;
555 int i;
556
557 for (i = 0; i < num; ++i) {
558 char *rrdata = sk_OPENSSL_STRING_value(rrset, i);
559 if (tlsa_import_rr(con, rrdata) > 0)
560 ++count;
561 }
562 return count > 0;
563 }
564
565 typedef enum OPTION_choice {
566 OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
567 OPT_4, OPT_6, OPT_HOST, OPT_PORT, OPT_CONNECT, OPT_BIND, OPT_UNIX,
568 OPT_XMPPHOST, OPT_VERIFY, OPT_NAMEOPT,
569 OPT_CERT, OPT_CRL, OPT_CRL_DOWNLOAD, OPT_SESS_OUT, OPT_SESS_IN,
570 OPT_CERTFORM, OPT_CRLFORM, OPT_VERIFY_RET_ERROR, OPT_VERIFY_QUIET,
571 OPT_BRIEF, OPT_PREXIT, OPT_CRLF, OPT_QUIET, OPT_NBIO,
572 OPT_SSL_CLIENT_ENGINE, OPT_IGN_EOF, OPT_NO_IGN_EOF,
573 OPT_DEBUG, OPT_TLSEXTDEBUG, OPT_STATUS, OPT_WDEBUG,
574 OPT_MSG, OPT_MSGFILE, OPT_ENGINE, OPT_TRACE, OPT_SECURITY_DEBUG,
575 OPT_SECURITY_DEBUG_VERBOSE, OPT_SHOWCERTS, OPT_NBIO_TEST, OPT_STATE,
576 OPT_PSK_IDENTITY, OPT_PSK, OPT_PSK_SESS,
577 #ifndef OPENSSL_NO_SRP
578 OPT_SRPUSER, OPT_SRPPASS, OPT_SRP_STRENGTH, OPT_SRP_LATEUSER,
579 OPT_SRP_MOREGROUPS,
580 #endif
581 OPT_SSL3, OPT_SSL_CONFIG,
582 OPT_TLS1_3, OPT_TLS1_2, OPT_TLS1_1, OPT_TLS1, OPT_DTLS, OPT_DTLS1,
583 OPT_DTLS1_2, OPT_SCTP, OPT_TIMEOUT, OPT_MTU, OPT_KEYFORM, OPT_PASS,
584 OPT_CERT_CHAIN, OPT_CAPATH, OPT_NOCAPATH, OPT_CHAINCAPATH, OPT_VERIFYCAPATH,
585 OPT_KEY, OPT_RECONNECT, OPT_BUILD_CHAIN, OPT_CAFILE, OPT_NOCAFILE,
586 OPT_CHAINCAFILE, OPT_VERIFYCAFILE, OPT_NEXTPROTONEG, OPT_ALPN,
587 OPT_SERVERINFO, OPT_STARTTLS, OPT_SERVERNAME, OPT_NOSERVERNAME, OPT_ASYNC,
588 OPT_USE_SRTP, OPT_KEYMATEXPORT, OPT_KEYMATEXPORTLEN, OPT_PROTOHOST,
589 OPT_MAXFRAGLEN, OPT_MAX_SEND_FRAG, OPT_SPLIT_SEND_FRAG, OPT_MAX_PIPELINES,
590 OPT_READ_BUF, OPT_KEYLOG_FILE, OPT_EARLY_DATA, OPT_REQCAFILE,
591 OPT_V_ENUM,
592 OPT_X_ENUM,
593 OPT_S_ENUM,
594 OPT_FALLBACKSCSV, OPT_NOCMDS, OPT_PROXY, OPT_PROXY_USER, OPT_PROXY_PASS,
595 OPT_DANE_TLSA_DOMAIN,
596 #ifndef OPENSSL_NO_CT
597 OPT_CT, OPT_NOCT, OPT_CTLOG_FILE,
598 #endif
599 OPT_DANE_TLSA_RRDATA, OPT_DANE_EE_NO_NAME,
600 OPT_ENABLE_PHA,
601 OPT_R_ENUM
602 } OPTION_CHOICE;
603
604 const OPTIONS s_client_options[] = {
605 {"help", OPT_HELP, '-', "Display this summary"},
606 {"host", OPT_HOST, 's', "Use -connect instead"},
607 {"port", OPT_PORT, 'p', "Use -connect instead"},
608 {"connect", OPT_CONNECT, 's',
609 "TCP/IP where to connect (default is :" PORT ")"},
610 {"bind", OPT_BIND, 's', "bind local address for connection"},
611 {"proxy", OPT_PROXY, 's',
612 "Connect to via specified proxy to the real server"},
613 {"proxy_user", OPT_PROXY_USER, 's', "UserID for proxy authentication"},
614 {"proxy_pass", OPT_PROXY_PASS, 's', "Proxy authentication password source"},
615 #ifdef AF_UNIX
616 {"unix", OPT_UNIX, 's', "Connect over the specified Unix-domain socket"},
617 #endif
618 {"4", OPT_4, '-', "Use IPv4 only"},
619 #ifdef AF_INET6
620 {"6", OPT_6, '-', "Use IPv6 only"},
621 #endif
622 {"verify", OPT_VERIFY, 'p', "Turn on peer certificate verification"},
623 {"cert", OPT_CERT, '<', "Certificate file to use, PEM format assumed"},
624 {"certform", OPT_CERTFORM, 'F',
625 "Certificate format (PEM or DER) PEM default"},
626 {"nameopt", OPT_NAMEOPT, 's', "Various certificate name options"},
627 {"key", OPT_KEY, 's', "Private key file to use, if not in -cert file"},
628 {"keyform", OPT_KEYFORM, 'E', "Key format (PEM, DER or engine) PEM default"},
629 {"pass", OPT_PASS, 's', "Private key file pass phrase source"},
630 {"CApath", OPT_CAPATH, '/', "PEM format directory of CA's"},
631 {"CAfile", OPT_CAFILE, '<', "PEM format file of CA's"},
632 {"no-CAfile", OPT_NOCAFILE, '-',
633 "Do not load the default certificates file"},
634 {"no-CApath", OPT_NOCAPATH, '-',
635 "Do not load certificates from the default certificates directory"},
636 {"requestCAfile", OPT_REQCAFILE, '<',
637 "PEM format file of CA names to send to the server"},
638 {"dane_tlsa_domain", OPT_DANE_TLSA_DOMAIN, 's', "DANE TLSA base domain"},
639 {"dane_tlsa_rrdata", OPT_DANE_TLSA_RRDATA, 's',
640 "DANE TLSA rrdata presentation form"},
641 {"dane_ee_no_namechecks", OPT_DANE_EE_NO_NAME, '-',
642 "Disable name checks when matching DANE-EE(3) TLSA records"},
643 {"reconnect", OPT_RECONNECT, '-',
644 "Drop and re-make the connection with the same Session-ID"},
645 {"showcerts", OPT_SHOWCERTS, '-',
646 "Show all certificates sent by the server"},
647 {"debug", OPT_DEBUG, '-', "Extra output"},
648 {"msg", OPT_MSG, '-', "Show protocol messages"},
649 {"msgfile", OPT_MSGFILE, '>',
650 "File to send output of -msg or -trace, instead of stdout"},
651 {"nbio_test", OPT_NBIO_TEST, '-', "More ssl protocol testing"},
652 {"state", OPT_STATE, '-', "Print the ssl states"},
653 {"crlf", OPT_CRLF, '-', "Convert LF from terminal into CRLF"},
654 {"quiet", OPT_QUIET, '-', "No s_client output"},
655 {"ign_eof", OPT_IGN_EOF, '-', "Ignore input eof (default when -quiet)"},
656 {"no_ign_eof", OPT_NO_IGN_EOF, '-', "Don't ignore input eof"},
657 {"starttls", OPT_STARTTLS, 's',
658 "Use the appropriate STARTTLS command before starting TLS"},
659 {"xmpphost", OPT_XMPPHOST, 's',
660 "Alias of -name option for \"-starttls xmpp[-server]\""},
661 OPT_R_OPTIONS,
662 {"sess_out", OPT_SESS_OUT, '>', "File to write SSL session to"},
663 {"sess_in", OPT_SESS_IN, '<', "File to read SSL session from"},
664 #ifndef OPENSSL_NO_SRTP
665 {"use_srtp", OPT_USE_SRTP, 's',
666 "Offer SRTP key management with a colon-separated profile list"},
667 #endif
668 {"keymatexport", OPT_KEYMATEXPORT, 's',
669 "Export keying material using label"},
670 {"keymatexportlen", OPT_KEYMATEXPORTLEN, 'p',
671 "Export len bytes of keying material (default 20)"},
672 {"maxfraglen", OPT_MAXFRAGLEN, 'p',
673 "Enable Maximum Fragment Length Negotiation (len values: 512, 1024, 2048 and 4096)"},
674 {"fallback_scsv", OPT_FALLBACKSCSV, '-', "Send the fallback SCSV"},
675 {"name", OPT_PROTOHOST, 's',
676 "Hostname to use for \"-starttls lmtp\", \"-starttls smtp\" or \"-starttls xmpp[-server]\""},
677 {"CRL", OPT_CRL, '<', "CRL file to use"},
678 {"crl_download", OPT_CRL_DOWNLOAD, '-', "Download CRL from distribution points"},
679 {"CRLform", OPT_CRLFORM, 'F', "CRL format (PEM or DER) PEM is default"},
680 {"verify_return_error", OPT_VERIFY_RET_ERROR, '-',
681 "Close connection on verification error"},
682 {"verify_quiet", OPT_VERIFY_QUIET, '-', "Restrict verify output to errors"},
683 {"brief", OPT_BRIEF, '-',
684 "Restrict output to brief summary of connection parameters"},
685 {"prexit", OPT_PREXIT, '-',
686 "Print session information when the program exits"},
687 {"security_debug", OPT_SECURITY_DEBUG, '-',
688 "Enable security debug messages"},
689 {"security_debug_verbose", OPT_SECURITY_DEBUG_VERBOSE, '-',
690 "Output more security debug output"},
691 {"cert_chain", OPT_CERT_CHAIN, '<',
692 "Certificate chain file (in PEM format)"},
693 {"chainCApath", OPT_CHAINCAPATH, '/',
694 "Use dir as certificate store path to build CA certificate chain"},
695 {"verifyCApath", OPT_VERIFYCAPATH, '/',
696 "Use dir as certificate store path to verify CA certificate"},
697 {"build_chain", OPT_BUILD_CHAIN, '-', "Build certificate chain"},
698 {"chainCAfile", OPT_CHAINCAFILE, '<',
699 "CA file for certificate chain (PEM format)"},
700 {"verifyCAfile", OPT_VERIFYCAFILE, '<',
701 "CA file for certificate verification (PEM format)"},
702 {"nocommands", OPT_NOCMDS, '-', "Do not use interactive command letters"},
703 {"servername", OPT_SERVERNAME, 's',
704 "Set TLS extension servername (SNI) in ClientHello (default)"},
705 {"noservername", OPT_NOSERVERNAME, '-',
706 "Do not send the server name (SNI) extension in the ClientHello"},
707 {"tlsextdebug", OPT_TLSEXTDEBUG, '-',
708 "Hex dump of all TLS extensions received"},
709 #ifndef OPENSSL_NO_OCSP
710 {"status", OPT_STATUS, '-', "Request certificate status from server"},
711 #endif
712 {"serverinfo", OPT_SERVERINFO, 's',
713 "types Send empty ClientHello extensions (comma-separated numbers)"},
714 {"alpn", OPT_ALPN, 's',
715 "Enable ALPN extension, considering named protocols supported (comma-separated list)"},
716 {"async", OPT_ASYNC, '-', "Support asynchronous operation"},
717 {"ssl_config", OPT_SSL_CONFIG, 's', "Use specified configuration file"},
718 {"max_send_frag", OPT_MAX_SEND_FRAG, 'p', "Maximum Size of send frames "},
719 {"split_send_frag", OPT_SPLIT_SEND_FRAG, 'p',
720 "Size used to split data for encrypt pipelines"},
721 {"max_pipelines", OPT_MAX_PIPELINES, 'p',
722 "Maximum number of encrypt/decrypt pipelines to be used"},
723 {"read_buf", OPT_READ_BUF, 'p',
724 "Default read buffer size to be used for connections"},
725 OPT_S_OPTIONS,
726 OPT_V_OPTIONS,
727 OPT_X_OPTIONS,
728 #ifndef OPENSSL_NO_SSL3
729 {"ssl3", OPT_SSL3, '-', "Just use SSLv3"},
730 #endif
731 #ifndef OPENSSL_NO_TLS1
732 {"tls1", OPT_TLS1, '-', "Just use TLSv1"},
733 #endif
734 #ifndef OPENSSL_NO_TLS1_1
735 {"tls1_1", OPT_TLS1_1, '-', "Just use TLSv1.1"},
736 #endif
737 #ifndef OPENSSL_NO_TLS1_2
738 {"tls1_2", OPT_TLS1_2, '-', "Just use TLSv1.2"},
739 #endif
740 #ifndef OPENSSL_NO_TLS1_3
741 {"tls1_3", OPT_TLS1_3, '-', "Just use TLSv1.3"},
742 #endif
743 #ifndef OPENSSL_NO_DTLS
744 {"dtls", OPT_DTLS, '-', "Use any version of DTLS"},
745 {"timeout", OPT_TIMEOUT, '-',
746 "Enable send/receive timeout on DTLS connections"},
747 {"mtu", OPT_MTU, 'p', "Set the link layer MTU"},
748 #endif
749 #ifndef OPENSSL_NO_DTLS1
750 {"dtls1", OPT_DTLS1, '-', "Just use DTLSv1"},
751 #endif
752 #ifndef OPENSSL_NO_DTLS1_2
753 {"dtls1_2", OPT_DTLS1_2, '-', "Just use DTLSv1.2"},
754 #endif
755 #ifndef OPENSSL_NO_SCTP
756 {"sctp", OPT_SCTP, '-', "Use SCTP"},
757 #endif
758 #ifndef OPENSSL_NO_SSL_TRACE
759 {"trace", OPT_TRACE, '-', "Show trace output of protocol messages"},
760 #endif
761 #ifdef WATT32
762 {"wdebug", OPT_WDEBUG, '-', "WATT-32 tcp debugging"},
763 #endif
764 {"nbio", OPT_NBIO, '-', "Use non-blocking IO"},
765 {"psk_identity", OPT_PSK_IDENTITY, 's', "PSK identity"},
766 {"psk", OPT_PSK, 's', "PSK in hex (without 0x)"},
767 {"psk_session", OPT_PSK_SESS, '<', "File to read PSK SSL session from"},
768 #ifndef OPENSSL_NO_SRP
769 {"srpuser", OPT_SRPUSER, 's', "SRP authentication for 'user'"},
770 {"srppass", OPT_SRPPASS, 's', "Password for 'user'"},
771 {"srp_lateuser", OPT_SRP_LATEUSER, '-',
772 "SRP username into second ClientHello message"},
773 {"srp_moregroups", OPT_SRP_MOREGROUPS, '-',
774 "Tolerate other than the known g N values."},
775 {"srp_strength", OPT_SRP_STRENGTH, 'p', "Minimal length in bits for N"},
776 #endif
777 #ifndef OPENSSL_NO_NEXTPROTONEG
778 {"nextprotoneg", OPT_NEXTPROTONEG, 's',
779 "Enable NPN extension, considering named protocols supported (comma-separated list)"},
780 #endif
781 #ifndef OPENSSL_NO_ENGINE
782 {"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"},
783 {"ssl_client_engine", OPT_SSL_CLIENT_ENGINE, 's',
784 "Specify engine to be used for client certificate operations"},
785 #endif
786 #ifndef OPENSSL_NO_CT
787 {"ct", OPT_CT, '-', "Request and parse SCTs (also enables OCSP stapling)"},
788 {"noct", OPT_NOCT, '-', "Do not request or parse SCTs (default)"},
789 {"ctlogfile", OPT_CTLOG_FILE, '<', "CT log list CONF file"},
790 #endif
791 {"keylogfile", OPT_KEYLOG_FILE, '>', "Write TLS secrets to file"},
792 {"early_data", OPT_EARLY_DATA, '<', "File to send as early data"},
793 {"enable_pha", OPT_ENABLE_PHA, '-', "Enable post-handshake-authentication"},
794 {NULL, OPT_EOF, 0x00, NULL}
795 };
796
797 typedef enum PROTOCOL_choice {
798 PROTO_OFF,
799 PROTO_SMTP,
800 PROTO_POP3,
801 PROTO_IMAP,
802 PROTO_FTP,
803 PROTO_TELNET,
804 PROTO_XMPP,
805 PROTO_XMPP_SERVER,
806 PROTO_CONNECT,
807 PROTO_IRC,
808 PROTO_MYSQL,
809 PROTO_POSTGRES,
810 PROTO_LMTP,
811 PROTO_NNTP,
812 PROTO_SIEVE,
813 PROTO_LDAP
814 } PROTOCOL_CHOICE;
815
816 static const OPT_PAIR services[] = {
817 {"smtp", PROTO_SMTP},
818 {"pop3", PROTO_POP3},
819 {"imap", PROTO_IMAP},
820 {"ftp", PROTO_FTP},
821 {"xmpp", PROTO_XMPP},
822 {"xmpp-server", PROTO_XMPP_SERVER},
823 {"telnet", PROTO_TELNET},
824 {"irc", PROTO_IRC},
825 {"mysql", PROTO_MYSQL},
826 {"postgres", PROTO_POSTGRES},
827 {"lmtp", PROTO_LMTP},
828 {"nntp", PROTO_NNTP},
829 {"sieve", PROTO_SIEVE},
830 {"ldap", PROTO_LDAP},
831 {NULL, 0}
832 };
833
834 #define IS_INET_FLAG(o) \
835 (o == OPT_4 || o == OPT_6 || o == OPT_HOST || o == OPT_PORT || o == OPT_CONNECT)
836 #define IS_UNIX_FLAG(o) (o == OPT_UNIX)
837
838 #define IS_PROT_FLAG(o) \
839 (o == OPT_SSL3 || o == OPT_TLS1 || o == OPT_TLS1_1 || o == OPT_TLS1_2 \
840 || o == OPT_TLS1_3 || o == OPT_DTLS || o == OPT_DTLS1 || o == OPT_DTLS1_2)
841
842 /* Free |*dest| and optionally set it to a copy of |source|. */
843 static void freeandcopy(char **dest, const char *source)
844 {
845 OPENSSL_free(*dest);
846 *dest = NULL;
847 if (source != NULL)
848 *dest = OPENSSL_strdup(source);
849 }
850
851 static int new_session_cb(SSL *s, SSL_SESSION *sess)
852 {
853
854 if (sess_out != NULL) {
855 BIO *stmp = BIO_new_file(sess_out, "w");
856
857 if (stmp == NULL) {
858 BIO_printf(bio_err, "Error writing session file %s\n", sess_out);
859 } else {
860 PEM_write_bio_SSL_SESSION(stmp, sess);
861 BIO_free(stmp);
862 }
863 }
864
865 /*
866 * Session data gets dumped on connection for TLSv1.2 and below, and on
867 * arrival of the NewSessionTicket for TLSv1.3.
868 */
869 if (SSL_version(s) == TLS1_3_VERSION) {
870 BIO_printf(bio_c_out,
871 "---\nPost-Handshake New Session Ticket arrived:\n");
872 SSL_SESSION_print(bio_c_out, sess);
873 BIO_printf(bio_c_out, "---\n");
874 }
875
876 /*
877 * We always return a "fail" response so that the session gets freed again
878 * because we haven't used the reference.
879 */
880 return 0;
881 }
882
883 int s_client_main(int argc, char **argv)
884 {
885 BIO *sbio;
886 EVP_PKEY *key = NULL;
887 SSL *con = NULL;
888 SSL_CTX *ctx = NULL;
889 STACK_OF(X509) *chain = NULL;
890 X509 *cert = NULL;
891 X509_VERIFY_PARAM *vpm = NULL;
892 SSL_EXCERT *exc = NULL;
893 SSL_CONF_CTX *cctx = NULL;
894 STACK_OF(OPENSSL_STRING) *ssl_args = NULL;
895 char *dane_tlsa_domain = NULL;
896 STACK_OF(OPENSSL_STRING) *dane_tlsa_rrset = NULL;
897 int dane_ee_no_name = 0;
898 STACK_OF(X509_CRL) *crls = NULL;
899 const SSL_METHOD *meth = TLS_client_method();
900 const char *CApath = NULL, *CAfile = NULL;
901 char *cbuf = NULL, *sbuf = NULL, *mbuf = NULL;
902 char *proxystr = NULL, *proxyuser = NULL;
903 char *proxypassarg = NULL, *proxypass = NULL;
904 char *connectstr = NULL, *bindstr = NULL;
905 char *cert_file = NULL, *key_file = NULL, *chain_file = NULL;
906 char *chCApath = NULL, *chCAfile = NULL, *host = NULL;
907 char *port = OPENSSL_strdup(PORT);
908 char *bindhost = NULL, *bindport = NULL;
909 char *passarg = NULL, *pass = NULL, *vfyCApath = NULL, *vfyCAfile = NULL;
910 char *ReqCAfile = NULL;
911 char *sess_in = NULL, *crl_file = NULL, *p;
912 const char *protohost = NULL;
913 struct timeval timeout, *timeoutp;
914 fd_set readfds, writefds;
915 int noCApath = 0, noCAfile = 0;
916 int build_chain = 0, cbuf_len, cbuf_off, cert_format = FORMAT_PEM;
917 int key_format = FORMAT_PEM, crlf = 0, full_log = 1, mbuf_len = 0;
918 int prexit = 0;
919 int sdebug = 0;
920 int reconnect = 0, verify = SSL_VERIFY_NONE, vpmtouched = 0;
921 int ret = 1, in_init = 1, i, nbio_test = 0, s = -1, k, width, state = 0;
922 int sbuf_len, sbuf_off, cmdletters = 1;
923 int socket_family = AF_UNSPEC, socket_type = SOCK_STREAM, protocol = 0;
924 int starttls_proto = PROTO_OFF, crl_format = FORMAT_PEM, crl_download = 0;
925 int write_tty, read_tty, write_ssl, read_ssl, tty_on, ssl_pending;
926 #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS)
927 int at_eof = 0;
928 #endif
929 int read_buf_len = 0;
930 int fallback_scsv = 0;
931 OPTION_CHOICE o;
932 #ifndef OPENSSL_NO_DTLS
933 int enable_timeouts = 0;
934 long socket_mtu = 0;
935 #endif
936 #ifndef OPENSSL_NO_ENGINE
937 ENGINE *ssl_client_engine = NULL;
938 #endif
939 ENGINE *e = NULL;
940 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
941 struct timeval tv;
942 #endif
943 const char *servername = NULL;
944 int noservername = 0;
945 const char *alpn_in = NULL;
946 tlsextctx tlsextcbp = { NULL, 0 };
947 const char *ssl_config = NULL;
948 #define MAX_SI_TYPES 100
949 unsigned short serverinfo_types[MAX_SI_TYPES];
950 int serverinfo_count = 0, start = 0, len;
951 #ifndef OPENSSL_NO_NEXTPROTONEG
952 const char *next_proto_neg_in = NULL;
953 #endif
954 #ifndef OPENSSL_NO_SRP
955 char *srppass = NULL;
956 int srp_lateuser = 0;
957 SRP_ARG srp_arg = { NULL, NULL, 0, 0, 0, 1024 };
958 #endif
959 #ifndef OPENSSL_NO_SRTP
960 char *srtp_profiles = NULL;
961 #endif
962 #ifndef OPENSSL_NO_CT
963 char *ctlog_file = NULL;
964 int ct_validation = 0;
965 #endif
966 int min_version = 0, max_version = 0, prot_opt = 0, no_prot_opt = 0;
967 int async = 0;
968 unsigned int max_send_fragment = 0;
969 unsigned int split_send_fragment = 0, max_pipelines = 0;
970 enum { use_inet, use_unix, use_unknown } connect_type = use_unknown;
971 int count4or6 = 0;
972 uint8_t maxfraglen = 0;
973 int c_nbio = 0, c_msg = 0, c_ign_eof = 0, c_brief = 0;
974 int c_tlsextdebug = 0;
975 #ifndef OPENSSL_NO_OCSP
976 int c_status_req = 0;
977 #endif
978 BIO *bio_c_msg = NULL;
979 const char *keylog_file = NULL, *early_data_file = NULL;
980 #ifndef OPENSSL_NO_DTLS
981 int isdtls = 0;
982 #endif
983 char *psksessf = NULL;
984 int enable_pha = 0;
985
986 FD_ZERO(&readfds);
987 FD_ZERO(&writefds);
988 /* Known false-positive of MemorySanitizer. */
989 #if defined(__has_feature)
990 # if __has_feature(memory_sanitizer)
991 __msan_unpoison(&readfds, sizeof(readfds));
992 __msan_unpoison(&writefds, sizeof(writefds));
993 # endif
994 #endif
995
996 prog = opt_progname(argv[0]);
997 c_quiet = 0;
998 c_debug = 0;
999 c_showcerts = 0;
1000 c_nbio = 0;
1001 vpm = X509_VERIFY_PARAM_new();
1002 cctx = SSL_CONF_CTX_new();
1003
1004 if (vpm == NULL || cctx == NULL) {
1005 BIO_printf(bio_err, "%s: out of memory\n", prog);
1006 goto end;
1007 }
1008
1009 cbuf = app_malloc(BUFSIZZ, "cbuf");
1010 sbuf = app_malloc(BUFSIZZ, "sbuf");
1011 mbuf = app_malloc(BUFSIZZ, "mbuf");
1012
1013 SSL_CONF_CTX_set_flags(cctx, SSL_CONF_FLAG_CLIENT | SSL_CONF_FLAG_CMDLINE);
1014
1015 prog = opt_init(argc, argv, s_client_options);
1016 while ((o = opt_next()) != OPT_EOF) {
1017 /* Check for intermixing flags. */
1018 if (connect_type == use_unix && IS_INET_FLAG(o)) {
1019 BIO_printf(bio_err,
1020 "%s: Intermixed protocol flags (unix and internet domains)\n",
1021 prog);
1022 goto end;
1023 }
1024 if (connect_type == use_inet && IS_UNIX_FLAG(o)) {
1025 BIO_printf(bio_err,
1026 "%s: Intermixed protocol flags (internet and unix domains)\n",
1027 prog);
1028 goto end;
1029 }
1030
1031 if (IS_PROT_FLAG(o) && ++prot_opt > 1) {
1032 BIO_printf(bio_err, "Cannot supply multiple protocol flags\n");
1033 goto end;
1034 }
1035 if (IS_NO_PROT_FLAG(o))
1036 no_prot_opt++;
1037 if (prot_opt == 1 && no_prot_opt) {
1038 BIO_printf(bio_err,
1039 "Cannot supply both a protocol flag and '-no_<prot>'\n");
1040 goto end;
1041 }
1042
1043 switch (o) {
1044 case OPT_EOF:
1045 case OPT_ERR:
1046 opthelp:
1047 BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
1048 goto end;
1049 case OPT_HELP:
1050 opt_help(s_client_options);
1051 ret = 0;
1052 goto end;
1053 case OPT_4:
1054 connect_type = use_inet;
1055 socket_family = AF_INET;
1056 count4or6++;
1057 break;
1058 #ifdef AF_INET6
1059 case OPT_6:
1060 connect_type = use_inet;
1061 socket_family = AF_INET6;
1062 count4or6++;
1063 break;
1064 #endif
1065 case OPT_HOST:
1066 connect_type = use_inet;
1067 freeandcopy(&host, opt_arg());
1068 break;
1069 case OPT_PORT:
1070 connect_type = use_inet;
1071 freeandcopy(&port, opt_arg());
1072 break;
1073 case OPT_CONNECT:
1074 connect_type = use_inet;
1075 freeandcopy(&connectstr, opt_arg());
1076 break;
1077 case OPT_BIND:
1078 freeandcopy(&bindstr, opt_arg());
1079 break;
1080 case OPT_PROXY:
1081 proxystr = opt_arg();
1082 starttls_proto = PROTO_CONNECT;
1083 break;
1084 case OPT_PROXY_USER:
1085 proxyuser = opt_arg();
1086 break;
1087 case OPT_PROXY_PASS:
1088 proxypassarg = opt_arg();
1089 break;
1090 #ifdef AF_UNIX
1091 case OPT_UNIX:
1092 connect_type = use_unix;
1093 socket_family = AF_UNIX;
1094 freeandcopy(&host, opt_arg());
1095 break;
1096 #endif
1097 case OPT_XMPPHOST:
1098 /* fall through, since this is an alias */
1099 case OPT_PROTOHOST:
1100 protohost = opt_arg();
1101 break;
1102 case OPT_VERIFY:
1103 verify = SSL_VERIFY_PEER;
1104 verify_args.depth = atoi(opt_arg());
1105 if (!c_quiet)
1106 BIO_printf(bio_err, "verify depth is %d\n", verify_args.depth);
1107 break;
1108 case OPT_CERT:
1109 cert_file = opt_arg();
1110 break;
1111 case OPT_NAMEOPT:
1112 if (!set_nameopt(opt_arg()))
1113 goto end;
1114 break;
1115 case OPT_CRL:
1116 crl_file = opt_arg();
1117 break;
1118 case OPT_CRL_DOWNLOAD:
1119 crl_download = 1;
1120 break;
1121 case OPT_SESS_OUT:
1122 sess_out = opt_arg();
1123 break;
1124 case OPT_SESS_IN:
1125 sess_in = opt_arg();
1126 break;
1127 case OPT_CERTFORM:
1128 if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &cert_format))
1129 goto opthelp;
1130 break;
1131 case OPT_CRLFORM:
1132 if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &crl_format))
1133 goto opthelp;
1134 break;
1135 case OPT_VERIFY_RET_ERROR:
1136 verify_args.return_error = 1;
1137 break;
1138 case OPT_VERIFY_QUIET:
1139 verify_args.quiet = 1;
1140 break;
1141 case OPT_BRIEF:
1142 c_brief = verify_args.quiet = c_quiet = 1;
1143 break;
1144 case OPT_S_CASES:
1145 if (ssl_args == NULL)
1146 ssl_args = sk_OPENSSL_STRING_new_null();
1147 if (ssl_args == NULL
1148 || !sk_OPENSSL_STRING_push(ssl_args, opt_flag())
1149 || !sk_OPENSSL_STRING_push(ssl_args, opt_arg())) {
1150 BIO_printf(bio_err, "%s: Memory allocation failure\n", prog);
1151 goto end;
1152 }
1153 break;
1154 case OPT_V_CASES:
1155 if (!opt_verify(o, vpm))
1156 goto end;
1157 vpmtouched++;
1158 break;
1159 case OPT_X_CASES:
1160 if (!args_excert(o, &exc))
1161 goto end;
1162 break;
1163 case OPT_PREXIT:
1164 prexit = 1;
1165 break;
1166 case OPT_CRLF:
1167 crlf = 1;
1168 break;
1169 case OPT_QUIET:
1170 c_quiet = c_ign_eof = 1;
1171 break;
1172 case OPT_NBIO:
1173 c_nbio = 1;
1174 break;
1175 case OPT_NOCMDS:
1176 cmdletters = 0;
1177 break;
1178 case OPT_ENGINE:
1179 e = setup_engine(opt_arg(), 1);
1180 break;
1181 case OPT_SSL_CLIENT_ENGINE:
1182 #ifndef OPENSSL_NO_ENGINE
1183 ssl_client_engine = ENGINE_by_id(opt_arg());
1184 if (ssl_client_engine == NULL) {
1185 BIO_printf(bio_err, "Error getting client auth engine\n");
1186 goto opthelp;
1187 }
1188 #endif
1189 break;
1190 case OPT_R_CASES:
1191 if (!opt_rand(o))
1192 goto end;
1193 break;
1194 case OPT_IGN_EOF:
1195 c_ign_eof = 1;
1196 break;
1197 case OPT_NO_IGN_EOF:
1198 c_ign_eof = 0;
1199 break;
1200 case OPT_DEBUG:
1201 c_debug = 1;
1202 break;
1203 case OPT_TLSEXTDEBUG:
1204 c_tlsextdebug = 1;
1205 break;
1206 case OPT_STATUS:
1207 #ifndef OPENSSL_NO_OCSP
1208 c_status_req = 1;
1209 #endif
1210 break;
1211 case OPT_WDEBUG:
1212 #ifdef WATT32
1213 dbug_init();
1214 #endif
1215 break;
1216 case OPT_MSG:
1217 c_msg = 1;
1218 break;
1219 case OPT_MSGFILE:
1220 bio_c_msg = BIO_new_file(opt_arg(), "w");
1221 break;
1222 case OPT_TRACE:
1223 #ifndef OPENSSL_NO_SSL_TRACE
1224 c_msg = 2;
1225 #endif
1226 break;
1227 case OPT_SECURITY_DEBUG:
1228 sdebug = 1;
1229 break;
1230 case OPT_SECURITY_DEBUG_VERBOSE:
1231 sdebug = 2;
1232 break;
1233 case OPT_SHOWCERTS:
1234 c_showcerts = 1;
1235 break;
1236 case OPT_NBIO_TEST:
1237 nbio_test = 1;
1238 break;
1239 case OPT_STATE:
1240 state = 1;
1241 break;
1242 case OPT_PSK_IDENTITY:
1243 psk_identity = opt_arg();
1244 break;
1245 case OPT_PSK:
1246 for (p = psk_key = opt_arg(); *p; p++) {
1247 if (isxdigit(_UC(*p)))
1248 continue;
1249 BIO_printf(bio_err, "Not a hex number '%s'\n", psk_key);
1250 goto end;
1251 }
1252 break;
1253 case OPT_PSK_SESS:
1254 psksessf = opt_arg();
1255 break;
1256 #ifndef OPENSSL_NO_SRP
1257 case OPT_SRPUSER:
1258 srp_arg.srplogin = opt_arg();
1259 if (min_version < TLS1_VERSION)
1260 min_version = TLS1_VERSION;
1261 break;
1262 case OPT_SRPPASS:
1263 srppass = opt_arg();
1264 if (min_version < TLS1_VERSION)
1265 min_version = TLS1_VERSION;
1266 break;
1267 case OPT_SRP_STRENGTH:
1268 srp_arg.strength = atoi(opt_arg());
1269 BIO_printf(bio_err, "SRP minimal length for N is %d\n",
1270 srp_arg.strength);
1271 if (min_version < TLS1_VERSION)
1272 min_version = TLS1_VERSION;
1273 break;
1274 case OPT_SRP_LATEUSER:
1275 srp_lateuser = 1;
1276 if (min_version < TLS1_VERSION)
1277 min_version = TLS1_VERSION;
1278 break;
1279 case OPT_SRP_MOREGROUPS:
1280 srp_arg.amp = 1;
1281 if (min_version < TLS1_VERSION)
1282 min_version = TLS1_VERSION;
1283 break;
1284 #endif
1285 case OPT_SSL_CONFIG:
1286 ssl_config = opt_arg();
1287 break;
1288 case OPT_SSL3:
1289 min_version = SSL3_VERSION;
1290 max_version = SSL3_VERSION;
1291 break;
1292 case OPT_TLS1_3:
1293 min_version = TLS1_3_VERSION;
1294 max_version = TLS1_3_VERSION;
1295 break;
1296 case OPT_TLS1_2:
1297 min_version = TLS1_2_VERSION;
1298 max_version = TLS1_2_VERSION;
1299 break;
1300 case OPT_TLS1_1:
1301 min_version = TLS1_1_VERSION;
1302 max_version = TLS1_1_VERSION;
1303 break;
1304 case OPT_TLS1:
1305 min_version = TLS1_VERSION;
1306 max_version = TLS1_VERSION;
1307 break;
1308 case OPT_DTLS:
1309 #ifndef OPENSSL_NO_DTLS
1310 meth = DTLS_client_method();
1311 socket_type = SOCK_DGRAM;
1312 isdtls = 1;
1313 #endif
1314 break;
1315 case OPT_DTLS1:
1316 #ifndef OPENSSL_NO_DTLS1
1317 meth = DTLS_client_method();
1318 min_version = DTLS1_VERSION;
1319 max_version = DTLS1_VERSION;
1320 socket_type = SOCK_DGRAM;
1321 isdtls = 1;
1322 #endif
1323 break;
1324 case OPT_DTLS1_2:
1325 #ifndef OPENSSL_NO_DTLS1_2
1326 meth = DTLS_client_method();
1327 min_version = DTLS1_2_VERSION;
1328 max_version = DTLS1_2_VERSION;
1329 socket_type = SOCK_DGRAM;
1330 isdtls = 1;
1331 #endif
1332 break;
1333 case OPT_SCTP:
1334 #ifndef OPENSSL_NO_SCTP
1335 protocol = IPPROTO_SCTP;
1336 #endif
1337 break;
1338 case OPT_TIMEOUT:
1339 #ifndef OPENSSL_NO_DTLS
1340 enable_timeouts = 1;
1341 #endif
1342 break;
1343 case OPT_MTU:
1344 #ifndef OPENSSL_NO_DTLS
1345 socket_mtu = atol(opt_arg());
1346 #endif
1347 break;
1348 case OPT_FALLBACKSCSV:
1349 fallback_scsv = 1;
1350 break;
1351 case OPT_KEYFORM:
1352 if (!opt_format(opt_arg(), OPT_FMT_PDE, &key_format))
1353 goto opthelp;
1354 break;
1355 case OPT_PASS:
1356 passarg = opt_arg();
1357 break;
1358 case OPT_CERT_CHAIN:
1359 chain_file = opt_arg();
1360 break;
1361 case OPT_KEY:
1362 key_file = opt_arg();
1363 break;
1364 case OPT_RECONNECT:
1365 reconnect = 5;
1366 break;
1367 case OPT_CAPATH:
1368 CApath = opt_arg();
1369 break;
1370 case OPT_NOCAPATH:
1371 noCApath = 1;
1372 break;
1373 case OPT_CHAINCAPATH:
1374 chCApath = opt_arg();
1375 break;
1376 case OPT_VERIFYCAPATH:
1377 vfyCApath = opt_arg();
1378 break;
1379 case OPT_BUILD_CHAIN:
1380 build_chain = 1;
1381 break;
1382 case OPT_REQCAFILE:
1383 ReqCAfile = opt_arg();
1384 break;
1385 case OPT_CAFILE:
1386 CAfile = opt_arg();
1387 break;
1388 case OPT_NOCAFILE:
1389 noCAfile = 1;
1390 break;
1391 #ifndef OPENSSL_NO_CT
1392 case OPT_NOCT:
1393 ct_validation = 0;
1394 break;
1395 case OPT_CT:
1396 ct_validation = 1;
1397 break;
1398 case OPT_CTLOG_FILE:
1399 ctlog_file = opt_arg();
1400 break;
1401 #endif
1402 case OPT_CHAINCAFILE:
1403 chCAfile = opt_arg();
1404 break;
1405 case OPT_VERIFYCAFILE:
1406 vfyCAfile = opt_arg();
1407 break;
1408 case OPT_DANE_TLSA_DOMAIN:
1409 dane_tlsa_domain = opt_arg();
1410 break;
1411 case OPT_DANE_TLSA_RRDATA:
1412 if (dane_tlsa_rrset == NULL)
1413 dane_tlsa_rrset = sk_OPENSSL_STRING_new_null();
1414 if (dane_tlsa_rrset == NULL ||
1415 !sk_OPENSSL_STRING_push(dane_tlsa_rrset, opt_arg())) {
1416 BIO_printf(bio_err, "%s: Memory allocation failure\n", prog);
1417 goto end;
1418 }
1419 break;
1420 case OPT_DANE_EE_NO_NAME:
1421 dane_ee_no_name = 1;
1422 break;
1423 case OPT_NEXTPROTONEG:
1424 #ifndef OPENSSL_NO_NEXTPROTONEG
1425 next_proto_neg_in = opt_arg();
1426 #endif
1427 break;
1428 case OPT_ALPN:
1429 alpn_in = opt_arg();
1430 break;
1431 case OPT_SERVERINFO:
1432 p = opt_arg();
1433 len = strlen(p);
1434 for (start = 0, i = 0; i <= len; ++i) {
1435 if (i == len || p[i] == ',') {
1436 serverinfo_types[serverinfo_count] = atoi(p + start);
1437 if (++serverinfo_count == MAX_SI_TYPES)
1438 break;
1439 start = i + 1;
1440 }
1441 }
1442 break;
1443 case OPT_STARTTLS:
1444 if (!opt_pair(opt_arg(), services, &starttls_proto))
1445 goto end;
1446 break;
1447 case OPT_SERVERNAME:
1448 servername = opt_arg();
1449 break;
1450 case OPT_NOSERVERNAME:
1451 noservername = 1;
1452 break;
1453 case OPT_USE_SRTP:
1454 #ifndef OPENSSL_NO_SRTP
1455 srtp_profiles = opt_arg();
1456 #endif
1457 break;
1458 case OPT_KEYMATEXPORT:
1459 keymatexportlabel = opt_arg();
1460 break;
1461 case OPT_KEYMATEXPORTLEN:
1462 keymatexportlen = atoi(opt_arg());
1463 break;
1464 case OPT_ASYNC:
1465 async = 1;
1466 break;
1467 case OPT_MAXFRAGLEN:
1468 len = atoi(opt_arg());
1469 switch (len) {
1470 case 512:
1471 maxfraglen = TLSEXT_max_fragment_length_512;
1472 break;
1473 case 1024:
1474 maxfraglen = TLSEXT_max_fragment_length_1024;
1475 break;
1476 case 2048:
1477 maxfraglen = TLSEXT_max_fragment_length_2048;
1478 break;
1479 case 4096:
1480 maxfraglen = TLSEXT_max_fragment_length_4096;
1481 break;
1482 default:
1483 BIO_printf(bio_err,
1484 "%s: Max Fragment Len %u is out of permitted values",
1485 prog, len);
1486 goto opthelp;
1487 }
1488 break;
1489 case OPT_MAX_SEND_FRAG:
1490 max_send_fragment = atoi(opt_arg());
1491 break;
1492 case OPT_SPLIT_SEND_FRAG:
1493 split_send_fragment = atoi(opt_arg());
1494 break;
1495 case OPT_MAX_PIPELINES:
1496 max_pipelines = atoi(opt_arg());
1497 break;
1498 case OPT_READ_BUF:
1499 read_buf_len = atoi(opt_arg());
1500 break;
1501 case OPT_KEYLOG_FILE:
1502 keylog_file = opt_arg();
1503 break;
1504 case OPT_EARLY_DATA:
1505 early_data_file = opt_arg();
1506 break;
1507 case OPT_ENABLE_PHA:
1508 enable_pha = 1;
1509 break;
1510 }
1511 }
1512 if (count4or6 >= 2) {
1513 BIO_printf(bio_err, "%s: Can't use both -4 and -6\n", prog);
1514 goto opthelp;
1515 }
1516 if (noservername) {
1517 if (servername != NULL) {
1518 BIO_printf(bio_err,
1519 "%s: Can't use -servername and -noservername together\n",
1520 prog);
1521 goto opthelp;
1522 }
1523 if (dane_tlsa_domain != NULL) {
1524 BIO_printf(bio_err,
1525 "%s: Can't use -dane_tlsa_domain and -noservername together\n",
1526 prog);
1527 goto opthelp;
1528 }
1529 }
1530 argc = opt_num_rest();
1531 if (argc == 1) {
1532 /* If there's a positional argument, it's the equivalent of
1533 * OPT_CONNECT.
1534 * Don't allow -connect and a separate argument.
1535 */
1536 if (connectstr != NULL) {
1537 BIO_printf(bio_err,
1538 "%s: must not provide both -connect option and target parameter\n",
1539 prog);
1540 goto opthelp;
1541 }
1542 connect_type = use_inet;
1543 freeandcopy(&connectstr, *opt_rest());
1544 } else if (argc != 0) {
1545 goto opthelp;
1546 }
1547
1548 #ifndef OPENSSL_NO_NEXTPROTONEG
1549 if (min_version == TLS1_3_VERSION && next_proto_neg_in != NULL) {
1550 BIO_printf(bio_err, "Cannot supply -nextprotoneg with TLSv1.3\n");
1551 goto opthelp;
1552 }
1553 #endif
1554 if (proxystr != NULL) {
1555 int res;
1556 char *tmp_host = host, *tmp_port = port;
1557 if (connectstr == NULL) {
1558 BIO_printf(bio_err, "%s: -proxy requires use of -connect or target parameter\n", prog);
1559 goto opthelp;
1560 }
1561 res = BIO_parse_hostserv(proxystr, &host, &port, BIO_PARSE_PRIO_HOST);
1562 if (tmp_host != host)
1563 OPENSSL_free(tmp_host);
1564 if (tmp_port != port)
1565 OPENSSL_free(tmp_port);
1566 if (!res) {
1567 BIO_printf(bio_err,
1568 "%s: -proxy argument malformed or ambiguous\n", prog);
1569 goto end;
1570 }
1571 } else {
1572 int res = 1;
1573 char *tmp_host = host, *tmp_port = port;
1574 if (connectstr != NULL)
1575 res = BIO_parse_hostserv(connectstr, &host, &port,
1576 BIO_PARSE_PRIO_HOST);
1577 if (tmp_host != host)
1578 OPENSSL_free(tmp_host);
1579 if (tmp_port != port)
1580 OPENSSL_free(tmp_port);
1581 if (!res) {
1582 BIO_printf(bio_err,
1583 "%s: -connect argument or target parameter malformed or ambiguous\n",
1584 prog);
1585 goto end;
1586 }
1587 }
1588
1589 if (bindstr != NULL) {
1590 int res;
1591 res = BIO_parse_hostserv(bindstr, &bindhost, &bindport,
1592 BIO_PARSE_PRIO_HOST);
1593 if (!res) {
1594 BIO_printf(bio_err,
1595 "%s: -bind argument parameter malformed or ambiguous\n",
1596 prog);
1597 goto end;
1598 }
1599 }
1600
1601 #ifdef AF_UNIX
1602 if (socket_family == AF_UNIX && socket_type != SOCK_STREAM) {
1603 BIO_printf(bio_err,
1604 "Can't use unix sockets and datagrams together\n");
1605 goto end;
1606 }
1607 #endif
1608
1609 #ifndef OPENSSL_NO_SCTP
1610 if (protocol == IPPROTO_SCTP) {
1611 if (socket_type != SOCK_DGRAM) {
1612 BIO_printf(bio_err, "Can't use -sctp without DTLS\n");
1613 goto end;
1614 }
1615 /* SCTP is unusual. It uses DTLS over a SOCK_STREAM protocol */
1616 socket_type = SOCK_STREAM;
1617 }
1618 #endif
1619
1620 #if !defined(OPENSSL_NO_NEXTPROTONEG)
1621 next_proto.status = -1;
1622 if (next_proto_neg_in) {
1623 next_proto.data =
1624 next_protos_parse(&next_proto.len, next_proto_neg_in);
1625 if (next_proto.data == NULL) {
1626 BIO_printf(bio_err, "Error parsing -nextprotoneg argument\n");
1627 goto end;
1628 }
1629 } else
1630 next_proto.data = NULL;
1631 #endif
1632
1633 if (!app_passwd(passarg, NULL, &pass, NULL)) {
1634 BIO_printf(bio_err, "Error getting private key password\n");
1635 goto end;
1636 }
1637
1638 if (!app_passwd(proxypassarg, NULL, &proxypass, NULL)) {
1639 BIO_printf(bio_err, "Error getting proxy password\n");
1640 goto end;
1641 }
1642
1643 if (proxypass != NULL && proxyuser == NULL) {
1644 BIO_printf(bio_err, "Error: Must specify proxy_user with proxy_pass\n");
1645 goto end;
1646 }
1647
1648 if (key_file == NULL)
1649 key_file = cert_file;
1650
1651 if (key_file != NULL) {
1652 key = load_key(key_file, key_format, 0, pass, e,
1653 "client certificate private key file");
1654 if (key == NULL) {
1655 ERR_print_errors(bio_err);
1656 goto end;
1657 }
1658 }
1659
1660 if (cert_file != NULL) {
1661 cert = load_cert(cert_file, cert_format, "client certificate file");
1662 if (cert == NULL) {
1663 ERR_print_errors(bio_err);
1664 goto end;
1665 }
1666 }
1667
1668 if (chain_file != NULL) {
1669 if (!load_certs(chain_file, &chain, FORMAT_PEM, NULL,
1670 "client certificate chain"))
1671 goto end;
1672 }
1673
1674 if (crl_file != NULL) {
1675 X509_CRL *crl;
1676 crl = load_crl(crl_file, crl_format);
1677 if (crl == NULL) {
1678 BIO_puts(bio_err, "Error loading CRL\n");
1679 ERR_print_errors(bio_err);
1680 goto end;
1681 }
1682 crls = sk_X509_CRL_new_null();
1683 if (crls == NULL || !sk_X509_CRL_push(crls, crl)) {
1684 BIO_puts(bio_err, "Error adding CRL\n");
1685 ERR_print_errors(bio_err);
1686 X509_CRL_free(crl);
1687 goto end;
1688 }
1689 }
1690
1691 if (!load_excert(&exc))
1692 goto end;
1693
1694 if (bio_c_out == NULL) {
1695 if (c_quiet && !c_debug) {
1696 bio_c_out = BIO_new(BIO_s_null());
1697 if (c_msg && bio_c_msg == NULL)
1698 bio_c_msg = dup_bio_out(FORMAT_TEXT);
1699 } else if (bio_c_out == NULL)
1700 bio_c_out = dup_bio_out(FORMAT_TEXT);
1701 }
1702 #ifndef OPENSSL_NO_SRP
1703 if (!app_passwd(srppass, NULL, &srp_arg.srppassin, NULL)) {
1704 BIO_printf(bio_err, "Error getting password\n");
1705 goto end;
1706 }
1707 #endif
1708
1709 ctx = SSL_CTX_new(meth);
1710 if (ctx == NULL) {
1711 ERR_print_errors(bio_err);
1712 goto end;
1713 }
1714
1715 SSL_CTX_clear_mode(ctx, SSL_MODE_AUTO_RETRY);
1716
1717 if (sdebug)
1718 ssl_ctx_security_debug(ctx, sdebug);
1719
1720 if (!config_ctx(cctx, ssl_args, ctx))
1721 goto end;
1722
1723 if (ssl_config != NULL) {
1724 if (SSL_CTX_config(ctx, ssl_config) == 0) {
1725 BIO_printf(bio_err, "Error using configuration \"%s\"\n",
1726 ssl_config);
1727 ERR_print_errors(bio_err);
1728 goto end;
1729 }
1730 }
1731
1732 if (min_version != 0
1733 && SSL_CTX_set_min_proto_version(ctx, min_version) == 0)
1734 goto end;
1735 if (max_version != 0
1736 && SSL_CTX_set_max_proto_version(ctx, max_version) == 0)
1737 goto end;
1738
1739 if (vpmtouched && !SSL_CTX_set1_param(ctx, vpm)) {
1740 BIO_printf(bio_err, "Error setting verify params\n");
1741 ERR_print_errors(bio_err);
1742 goto end;
1743 }
1744
1745 if (async) {
1746 SSL_CTX_set_mode(ctx, SSL_MODE_ASYNC);
1747 }
1748
1749 if (max_send_fragment > 0
1750 && !SSL_CTX_set_max_send_fragment(ctx, max_send_fragment)) {
1751 BIO_printf(bio_err, "%s: Max send fragment size %u is out of permitted range\n",
1752 prog, max_send_fragment);
1753 goto end;
1754 }
1755
1756 if (split_send_fragment > 0
1757 && !SSL_CTX_set_split_send_fragment(ctx, split_send_fragment)) {
1758 BIO_printf(bio_err, "%s: Split send fragment size %u is out of permitted range\n",
1759 prog, split_send_fragment);
1760 goto end;
1761 }
1762
1763 if (max_pipelines > 0
1764 && !SSL_CTX_set_max_pipelines(ctx, max_pipelines)) {
1765 BIO_printf(bio_err, "%s: Max pipelines %u is out of permitted range\n",
1766 prog, max_pipelines);
1767 goto end;
1768 }
1769
1770 if (read_buf_len > 0) {
1771 SSL_CTX_set_default_read_buffer_len(ctx, read_buf_len);
1772 }
1773
1774 if (maxfraglen > 0
1775 && !SSL_CTX_set_tlsext_max_fragment_length(ctx, maxfraglen)) {
1776 BIO_printf(bio_err,
1777 "%s: Max Fragment Length code %u is out of permitted values"
1778 "\n", prog, maxfraglen);
1779 goto end;
1780 }
1781
1782 if (!ssl_load_stores(ctx, vfyCApath, vfyCAfile, chCApath, chCAfile,
1783 crls, crl_download)) {
1784 BIO_printf(bio_err, "Error loading store locations\n");
1785 ERR_print_errors(bio_err);
1786 goto end;
1787 }
1788 if (ReqCAfile != NULL) {
1789 STACK_OF(X509_NAME) *nm = sk_X509_NAME_new_null();
1790
1791 if (nm == NULL || !SSL_add_file_cert_subjects_to_stack(nm, ReqCAfile)) {
1792 sk_X509_NAME_pop_free(nm, X509_NAME_free);
1793 BIO_printf(bio_err, "Error loading CA names\n");
1794 ERR_print_errors(bio_err);
1795 goto end;
1796 }
1797 SSL_CTX_set0_CA_list(ctx, nm);
1798 }
1799 #ifndef OPENSSL_NO_ENGINE
1800 if (ssl_client_engine) {
1801 if (!SSL_CTX_set_client_cert_engine(ctx, ssl_client_engine)) {
1802 BIO_puts(bio_err, "Error setting client auth engine\n");
1803 ERR_print_errors(bio_err);
1804 ENGINE_free(ssl_client_engine);
1805 goto end;
1806 }
1807 ENGINE_free(ssl_client_engine);
1808 }
1809 #endif
1810
1811 #ifndef OPENSSL_NO_PSK
1812 if (psk_key != NULL) {
1813 if (c_debug)
1814 BIO_printf(bio_c_out, "PSK key given, setting client callback\n");
1815 SSL_CTX_set_psk_client_callback(ctx, psk_client_cb);
1816 }
1817 #endif
1818 if (psksessf != NULL) {
1819 BIO *stmp = BIO_new_file(psksessf, "r");
1820
1821 if (stmp == NULL) {
1822 BIO_printf(bio_err, "Can't open PSK session file %s\n", psksessf);
1823 ERR_print_errors(bio_err);
1824 goto end;
1825 }
1826 psksess = PEM_read_bio_SSL_SESSION(stmp, NULL, 0, NULL);
1827 BIO_free(stmp);
1828 if (psksess == NULL) {
1829 BIO_printf(bio_err, "Can't read PSK session file %s\n", psksessf);
1830 ERR_print_errors(bio_err);
1831 goto end;
1832 }
1833 }
1834 if (psk_key != NULL || psksess != NULL)
1835 SSL_CTX_set_psk_use_session_callback(ctx, psk_use_session_cb);
1836
1837 #ifndef OPENSSL_NO_SRTP
1838 if (srtp_profiles != NULL) {
1839 /* Returns 0 on success! */
1840 if (SSL_CTX_set_tlsext_use_srtp(ctx, srtp_profiles) != 0) {
1841 BIO_printf(bio_err, "Error setting SRTP profile\n");
1842 ERR_print_errors(bio_err);
1843 goto end;
1844 }
1845 }
1846 #endif
1847
1848 if (exc != NULL)
1849 ssl_ctx_set_excert(ctx, exc);
1850
1851 #if !defined(OPENSSL_NO_NEXTPROTONEG)
1852 if (next_proto.data != NULL)
1853 SSL_CTX_set_next_proto_select_cb(ctx, next_proto_cb, &next_proto);
1854 #endif
1855 if (alpn_in) {
1856 size_t alpn_len;
1857 unsigned char *alpn = next_protos_parse(&alpn_len, alpn_in);
1858
1859 if (alpn == NULL) {
1860 BIO_printf(bio_err, "Error parsing -alpn argument\n");
1861 goto end;
1862 }
1863 /* Returns 0 on success! */
1864 if (SSL_CTX_set_alpn_protos(ctx, alpn, alpn_len) != 0) {
1865 BIO_printf(bio_err, "Error setting ALPN\n");
1866 goto end;
1867 }
1868 OPENSSL_free(alpn);
1869 }
1870
1871 for (i = 0; i < serverinfo_count; i++) {
1872 if (!SSL_CTX_add_client_custom_ext(ctx,
1873 serverinfo_types[i],
1874 NULL, NULL, NULL,
1875 serverinfo_cli_parse_cb, NULL)) {
1876 BIO_printf(bio_err,
1877 "Warning: Unable to add custom extension %u, skipping\n",
1878 serverinfo_types[i]);
1879 }
1880 }
1881
1882 if (state)
1883 SSL_CTX_set_info_callback(ctx, apps_ssl_info_callback);
1884
1885 #ifndef OPENSSL_NO_CT
1886 /* Enable SCT processing, without early connection termination */
1887 if (ct_validation &&
1888 !SSL_CTX_enable_ct(ctx, SSL_CT_VALIDATION_PERMISSIVE)) {
1889 ERR_print_errors(bio_err);
1890 goto end;
1891 }
1892
1893 if (!ctx_set_ctlog_list_file(ctx, ctlog_file)) {
1894 if (ct_validation) {
1895 ERR_print_errors(bio_err);
1896 goto end;
1897 }
1898
1899 /*
1900 * If CT validation is not enabled, the log list isn't needed so don't
1901 * show errors or abort. We try to load it regardless because then we
1902 * can show the names of the logs any SCTs came from (SCTs may be seen
1903 * even with validation disabled).
1904 */
1905 ERR_clear_error();
1906 }
1907 #endif
1908
1909 SSL_CTX_set_verify(ctx, verify, verify_callback);
1910
1911 if (!ctx_set_verify_locations(ctx, CAfile, CApath, noCAfile, noCApath)) {
1912 ERR_print_errors(bio_err);
1913 goto end;
1914 }
1915
1916 ssl_ctx_add_crls(ctx, crls, crl_download);
1917
1918 if (!set_cert_key_stuff(ctx, cert, key, chain, build_chain))
1919 goto end;
1920
1921 if (!noservername) {
1922 tlsextcbp.biodebug = bio_err;
1923 SSL_CTX_set_tlsext_servername_callback(ctx, ssl_servername_cb);
1924 SSL_CTX_set_tlsext_servername_arg(ctx, &tlsextcbp);
1925 }
1926 # ifndef OPENSSL_NO_SRP
1927 if (srp_arg.srplogin) {
1928 if (!srp_lateuser && !SSL_CTX_set_srp_username(ctx, srp_arg.srplogin)) {
1929 BIO_printf(bio_err, "Unable to set SRP username\n");
1930 goto end;
1931 }
1932 srp_arg.msg = c_msg;
1933 srp_arg.debug = c_debug;
1934 SSL_CTX_set_srp_cb_arg(ctx, &srp_arg);
1935 SSL_CTX_set_srp_client_pwd_callback(ctx, ssl_give_srp_client_pwd_cb);
1936 SSL_CTX_set_srp_strength(ctx, srp_arg.strength);
1937 if (c_msg || c_debug || srp_arg.amp == 0)
1938 SSL_CTX_set_srp_verify_param_callback(ctx,
1939 ssl_srp_verify_param_cb);
1940 }
1941 # endif
1942
1943 if (dane_tlsa_domain != NULL) {
1944 if (SSL_CTX_dane_enable(ctx) <= 0) {
1945 BIO_printf(bio_err,
1946 "%s: Error enabling DANE TLSA authentication.\n",
1947 prog);
1948 ERR_print_errors(bio_err);
1949 goto end;
1950 }
1951 }
1952
1953 /*
1954 * In TLSv1.3 NewSessionTicket messages arrive after the handshake and can
1955 * come at any time. Therefore we use a callback to write out the session
1956 * when we know about it. This approach works for < TLSv1.3 as well.
1957 */
1958 SSL_CTX_set_session_cache_mode(ctx, SSL_SESS_CACHE_CLIENT
1959 | SSL_SESS_CACHE_NO_INTERNAL_STORE);
1960 SSL_CTX_sess_set_new_cb(ctx, new_session_cb);
1961
1962 if (set_keylog_file(ctx, keylog_file))
1963 goto end;
1964
1965 con = SSL_new(ctx);
1966 if (con == NULL)
1967 goto end;
1968
1969 if (enable_pha)
1970 SSL_set_post_handshake_auth(con, 1);
1971
1972 if (sess_in != NULL) {
1973 SSL_SESSION *sess;
1974 BIO *stmp = BIO_new_file(sess_in, "r");
1975 if (stmp == NULL) {
1976 BIO_printf(bio_err, "Can't open session file %s\n", sess_in);
1977 ERR_print_errors(bio_err);
1978 goto end;
1979 }
1980 sess = PEM_read_bio_SSL_SESSION(stmp, NULL, 0, NULL);
1981 BIO_free(stmp);
1982 if (sess == NULL) {
1983 BIO_printf(bio_err, "Can't open session file %s\n", sess_in);
1984 ERR_print_errors(bio_err);
1985 goto end;
1986 }
1987 if (!SSL_set_session(con, sess)) {
1988 BIO_printf(bio_err, "Can't set session\n");
1989 ERR_print_errors(bio_err);
1990 goto end;
1991 }
1992
1993 SSL_SESSION_free(sess);
1994 }
1995
1996 if (fallback_scsv)
1997 SSL_set_mode(con, SSL_MODE_SEND_FALLBACK_SCSV);
1998
1999 if (!noservername && (servername != NULL || dane_tlsa_domain == NULL)) {
2000 if (servername == NULL)
2001 servername = (host == NULL) ? "localhost" : host;
2002 if (!SSL_set_tlsext_host_name(con, servername)) {
2003 BIO_printf(bio_err, "Unable to set TLS servername extension.\n");
2004 ERR_print_errors(bio_err);
2005 goto end;
2006 }
2007 }
2008
2009 if (dane_tlsa_domain != NULL) {
2010 if (SSL_dane_enable(con, dane_tlsa_domain) <= 0) {
2011 BIO_printf(bio_err, "%s: Error enabling DANE TLSA "
2012 "authentication.\n", prog);
2013 ERR_print_errors(bio_err);
2014 goto end;
2015 }
2016 if (dane_tlsa_rrset == NULL) {
2017 BIO_printf(bio_err, "%s: DANE TLSA authentication requires at "
2018 "least one -dane_tlsa_rrdata option.\n", prog);
2019 goto end;
2020 }
2021 if (tlsa_import_rrset(con, dane_tlsa_rrset) <= 0) {
2022 BIO_printf(bio_err, "%s: Failed to import any TLSA "
2023 "records.\n", prog);
2024 goto end;
2025 }
2026 if (dane_ee_no_name)
2027 SSL_dane_set_flags(con, DANE_FLAG_NO_DANE_EE_NAMECHECKS);
2028 } else if (dane_tlsa_rrset != NULL) {
2029 BIO_printf(bio_err, "%s: DANE TLSA authentication requires the "
2030 "-dane_tlsa_domain option.\n", prog);
2031 goto end;
2032 }
2033
2034 re_start:
2035 if (init_client(&s, host, port, bindhost, bindport, socket_family,
2036 socket_type, protocol) == 0) {
2037 BIO_printf(bio_err, "connect:errno=%d\n", get_last_socket_error());
2038 BIO_closesocket(s);
2039 goto end;
2040 }
2041 BIO_printf(bio_c_out, "CONNECTED(%08X)\n", s);
2042
2043 if (c_nbio) {
2044 if (!BIO_socket_nbio(s, 1)) {
2045 ERR_print_errors(bio_err);
2046 goto end;
2047 }
2048 BIO_printf(bio_c_out, "Turned on non blocking io\n");
2049 }
2050 #ifndef OPENSSL_NO_DTLS
2051 if (isdtls) {
2052 union BIO_sock_info_u peer_info;
2053
2054 #ifndef OPENSSL_NO_SCTP
2055 if (protocol == IPPROTO_SCTP)
2056 sbio = BIO_new_dgram_sctp(s, BIO_NOCLOSE);
2057 else
2058 #endif
2059 sbio = BIO_new_dgram(s, BIO_NOCLOSE);
2060
2061 if ((peer_info.addr = BIO_ADDR_new()) == NULL) {
2062 BIO_printf(bio_err, "memory allocation failure\n");
2063 BIO_closesocket(s);
2064 goto end;
2065 }
2066 if (!BIO_sock_info(s, BIO_SOCK_INFO_ADDRESS, &peer_info)) {
2067 BIO_printf(bio_err, "getsockname:errno=%d\n",
2068 get_last_socket_error());
2069 BIO_ADDR_free(peer_info.addr);
2070 BIO_closesocket(s);
2071 goto end;
2072 }
2073
2074 (void)BIO_ctrl_set_connected(sbio, peer_info.addr);
2075 BIO_ADDR_free(peer_info.addr);
2076 peer_info.addr = NULL;
2077
2078 if (enable_timeouts) {
2079 timeout.tv_sec = 0;
2080 timeout.tv_usec = DGRAM_RCV_TIMEOUT;
2081 BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_RECV_TIMEOUT, 0, &timeout);
2082
2083 timeout.tv_sec = 0;
2084 timeout.tv_usec = DGRAM_SND_TIMEOUT;
2085 BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_SEND_TIMEOUT, 0, &timeout);
2086 }
2087
2088 if (socket_mtu) {
2089 if (socket_mtu < DTLS_get_link_min_mtu(con)) {
2090 BIO_printf(bio_err, "MTU too small. Must be at least %ld\n",
2091 DTLS_get_link_min_mtu(con));
2092 BIO_free(sbio);
2093 goto shut;
2094 }
2095 SSL_set_options(con, SSL_OP_NO_QUERY_MTU);
2096 if (!DTLS_set_link_mtu(con, socket_mtu)) {
2097 BIO_printf(bio_err, "Failed to set MTU\n");
2098 BIO_free(sbio);
2099 goto shut;
2100 }
2101 } else {
2102 /* want to do MTU discovery */
2103 BIO_ctrl(sbio, BIO_CTRL_DGRAM_MTU_DISCOVER, 0, NULL);
2104 }
2105 } else
2106 #endif /* OPENSSL_NO_DTLS */
2107 sbio = BIO_new_socket(s, BIO_NOCLOSE);
2108
2109 if (nbio_test) {
2110 BIO *test;
2111
2112 test = BIO_new(BIO_f_nbio_test());
2113 sbio = BIO_push(test, sbio);
2114 }
2115
2116 if (c_debug) {
2117 BIO_set_callback(sbio, bio_dump_callback);
2118 BIO_set_callback_arg(sbio, (char *)bio_c_out);
2119 }
2120 if (c_msg) {
2121 #ifndef OPENSSL_NO_SSL_TRACE
2122 if (c_msg == 2)
2123 SSL_set_msg_callback(con, SSL_trace);
2124 else
2125 #endif
2126 SSL_set_msg_callback(con, msg_cb);
2127 SSL_set_msg_callback_arg(con, bio_c_msg ? bio_c_msg : bio_c_out);
2128 }
2129
2130 if (c_tlsextdebug) {
2131 SSL_set_tlsext_debug_callback(con, tlsext_cb);
2132 SSL_set_tlsext_debug_arg(con, bio_c_out);
2133 }
2134 #ifndef OPENSSL_NO_OCSP
2135 if (c_status_req) {
2136 SSL_set_tlsext_status_type(con, TLSEXT_STATUSTYPE_ocsp);
2137 SSL_CTX_set_tlsext_status_cb(ctx, ocsp_resp_cb);
2138 SSL_CTX_set_tlsext_status_arg(ctx, bio_c_out);
2139 }
2140 #endif
2141
2142 SSL_set_bio(con, sbio, sbio);
2143 SSL_set_connect_state(con);
2144
2145 /* ok, lets connect */
2146 if (fileno_stdin() > SSL_get_fd(con))
2147 width = fileno_stdin() + 1;
2148 else
2149 width = SSL_get_fd(con) + 1;
2150
2151 read_tty = 1;
2152 write_tty = 0;
2153 tty_on = 0;
2154 read_ssl = 1;
2155 write_ssl = 1;
2156
2157 cbuf_len = 0;
2158 cbuf_off = 0;
2159 sbuf_len = 0;
2160 sbuf_off = 0;
2161
2162 switch ((PROTOCOL_CHOICE) starttls_proto) {
2163 case PROTO_OFF:
2164 break;
2165 case PROTO_LMTP:
2166 case PROTO_SMTP:
2167 {
2168 /*
2169 * This is an ugly hack that does a lot of assumptions. We do
2170 * have to handle multi-line responses which may come in a single
2171 * packet or not. We therefore have to use BIO_gets() which does
2172 * need a buffering BIO. So during the initial chitchat we do
2173 * push a buffering BIO into the chain that is removed again
2174 * later on to not disturb the rest of the s_client operation.
2175 */
2176 int foundit = 0;
2177 BIO *fbio = BIO_new(BIO_f_buffer());
2178
2179 BIO_push(fbio, sbio);
2180 /* Wait for multi-line response to end from LMTP or SMTP */
2181 do {
2182 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2183 } while (mbuf_len > 3 && mbuf[3] == '-');
2184 if (protohost == NULL)
2185 protohost = "mail.example.com";
2186 if (starttls_proto == (int)PROTO_LMTP)
2187 BIO_printf(fbio, "LHLO %s\r\n", protohost);
2188 else
2189 BIO_printf(fbio, "EHLO %s\r\n", protohost);
2190 (void)BIO_flush(fbio);
2191 /*
2192 * Wait for multi-line response to end LHLO LMTP or EHLO SMTP
2193 * response.
2194 */
2195 do {
2196 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2197 if (strstr(mbuf, "STARTTLS"))
2198 foundit = 1;
2199 } while (mbuf_len > 3 && mbuf[3] == '-');
2200 (void)BIO_flush(fbio);
2201 BIO_pop(fbio);
2202 BIO_free(fbio);
2203 if (!foundit)
2204 BIO_printf(bio_err,
2205 "Didn't find STARTTLS in server response,"
2206 " trying anyway...\n");
2207 BIO_printf(sbio, "STARTTLS\r\n");
2208 BIO_read(sbio, sbuf, BUFSIZZ);
2209 }
2210 break;
2211 case PROTO_POP3:
2212 {
2213 BIO_read(sbio, mbuf, BUFSIZZ);
2214 BIO_printf(sbio, "STLS\r\n");
2215 mbuf_len = BIO_read(sbio, sbuf, BUFSIZZ);
2216 if (mbuf_len < 0) {
2217 BIO_printf(bio_err, "BIO_read failed\n");
2218 goto end;
2219 }
2220 }
2221 break;
2222 case PROTO_IMAP:
2223 {
2224 int foundit = 0;
2225 BIO *fbio = BIO_new(BIO_f_buffer());
2226
2227 BIO_push(fbio, sbio);
2228 BIO_gets(fbio, mbuf, BUFSIZZ);
2229 /* STARTTLS command requires CAPABILITY... */
2230 BIO_printf(fbio, ". CAPABILITY\r\n");
2231 (void)BIO_flush(fbio);
2232 /* wait for multi-line CAPABILITY response */
2233 do {
2234 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2235 if (strstr(mbuf, "STARTTLS"))
2236 foundit = 1;
2237 }
2238 while (mbuf_len > 3 && mbuf[0] != '.');
2239 (void)BIO_flush(fbio);
2240 BIO_pop(fbio);
2241 BIO_free(fbio);
2242 if (!foundit)
2243 BIO_printf(bio_err,
2244 "Didn't find STARTTLS in server response,"
2245 " trying anyway...\n");
2246 BIO_printf(sbio, ". STARTTLS\r\n");
2247 BIO_read(sbio, sbuf, BUFSIZZ);
2248 }
2249 break;
2250 case PROTO_FTP:
2251 {
2252 BIO *fbio = BIO_new(BIO_f_buffer());
2253
2254 BIO_push(fbio, sbio);
2255 /* wait for multi-line response to end from FTP */
2256 do {
2257 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2258 }
2259 while (mbuf_len > 3 && mbuf[3] == '-');
2260 (void)BIO_flush(fbio);
2261 BIO_pop(fbio);
2262 BIO_free(fbio);
2263 BIO_printf(sbio, "AUTH TLS\r\n");
2264 BIO_read(sbio, sbuf, BUFSIZZ);
2265 }
2266 break;
2267 case PROTO_XMPP:
2268 case PROTO_XMPP_SERVER:
2269 {
2270 int seen = 0;
2271 BIO_printf(sbio, "<stream:stream "
2272 "xmlns:stream='http://etherx.jabber.org/streams' "
2273 "xmlns='jabber:%s' to='%s' version='1.0'>",
2274 starttls_proto == PROTO_XMPP ? "client" : "server",
2275 protohost ? protohost : host);
2276 seen = BIO_read(sbio, mbuf, BUFSIZZ);
2277 if (seen < 0) {
2278 BIO_printf(bio_err, "BIO_read failed\n");
2279 goto end;
2280 }
2281 mbuf[seen] = '\0';
2282 while (!strstr
2283 (mbuf, "<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'")
2284 && !strstr(mbuf,
2285 "<starttls xmlns=\"urn:ietf:params:xml:ns:xmpp-tls\""))
2286 {
2287 seen = BIO_read(sbio, mbuf, BUFSIZZ);
2288
2289 if (seen <= 0)
2290 goto shut;
2291
2292 mbuf[seen] = '\0';
2293 }
2294 BIO_printf(sbio,
2295 "<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'/>");
2296 seen = BIO_read(sbio, sbuf, BUFSIZZ);
2297 if (seen < 0) {
2298 BIO_printf(bio_err, "BIO_read failed\n");
2299 goto shut;
2300 }
2301 sbuf[seen] = '\0';
2302 if (!strstr(sbuf, "<proceed"))
2303 goto shut;
2304 mbuf[0] = '\0';
2305 }
2306 break;
2307 case PROTO_TELNET:
2308 {
2309 static const unsigned char tls_do[] = {
2310 /* IAC DO START_TLS */
2311 255, 253, 46
2312 };
2313 static const unsigned char tls_will[] = {
2314 /* IAC WILL START_TLS */
2315 255, 251, 46
2316 };
2317 static const unsigned char tls_follows[] = {
2318 /* IAC SB START_TLS FOLLOWS IAC SE */
2319 255, 250, 46, 1, 255, 240
2320 };
2321 int bytes;
2322
2323 /* Telnet server should demand we issue START_TLS */
2324 bytes = BIO_read(sbio, mbuf, BUFSIZZ);
2325 if (bytes != 3 || memcmp(mbuf, tls_do, 3) != 0)
2326 goto shut;
2327 /* Agree to issue START_TLS and send the FOLLOWS sub-command */
2328 BIO_write(sbio, tls_will, 3);
2329 BIO_write(sbio, tls_follows, 6);
2330 (void)BIO_flush(sbio);
2331 /* Telnet server also sent the FOLLOWS sub-command */
2332 bytes = BIO_read(sbio, mbuf, BUFSIZZ);
2333 if (bytes != 6 || memcmp(mbuf, tls_follows, 6) != 0)
2334 goto shut;
2335 }
2336 break;
2337 case PROTO_CONNECT:
2338 {
2339 enum {
2340 error_proto, /* Wrong protocol, not even HTTP */
2341 error_connect, /* CONNECT failed */
2342 success
2343 } foundit = error_connect;
2344 BIO *fbio = BIO_new(BIO_f_buffer());
2345
2346 BIO_push(fbio, sbio);
2347 BIO_printf(fbio, "CONNECT %s HTTP/1.0\r\n", connectstr);
2348 /*
2349 * Workaround for broken proxies which would otherwise close
2350 * the connection when entering tunnel mode (eg Squid 2.6)
2351 */
2352 BIO_printf(fbio, "Proxy-Connection: Keep-Alive\r\n");
2353
2354 /* Support for basic (base64) proxy authentication */
2355 if (proxyuser != NULL) {
2356 size_t l;
2357 char *proxyauth, *proxyauthenc;
2358
2359 l = strlen(proxyuser);
2360 if (proxypass != NULL)
2361 l += strlen(proxypass);
2362 proxyauth = app_malloc(l + 2, "Proxy auth string");
2363 BIO_snprintf(proxyauth, l + 2, "%s:%s", proxyuser,
2364 (proxypass != NULL) ? proxypass : "");
2365 proxyauthenc = base64encode(proxyauth, strlen(proxyauth));
2366 BIO_printf(fbio, "Proxy-Authorization: Basic %s\r\n",
2367 proxyauthenc);
2368 OPENSSL_clear_free(proxyauth, strlen(proxyauth));
2369 OPENSSL_clear_free(proxyauthenc, strlen(proxyauthenc));
2370 }
2371
2372 /* Terminate the HTTP CONNECT request */
2373 BIO_printf(fbio, "\r\n");
2374 (void)BIO_flush(fbio);
2375 /*
2376 * The first line is the HTTP response. According to RFC 7230,
2377 * it's formated exactly like this:
2378 *
2379 * HTTP/d.d ddd Reason text\r\n
2380 */
2381 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2382 if (mbuf_len < (int)strlen("HTTP/1.0 200")) {
2383 BIO_printf(bio_err,
2384 "%s: HTTP CONNECT failed, insufficient response "
2385 "from proxy (got %d octets)\n", prog, mbuf_len);
2386 (void)BIO_flush(fbio);
2387 BIO_pop(fbio);
2388 BIO_free(fbio);
2389 goto shut;
2390 }
2391 if (mbuf[8] != ' ') {
2392 BIO_printf(bio_err,
2393 "%s: HTTP CONNECT failed, incorrect response "
2394 "from proxy\n", prog);
2395 foundit = error_proto;
2396 } else if (mbuf[9] != '2') {
2397 BIO_printf(bio_err, "%s: HTTP CONNECT failed: %s ", prog,
2398 &mbuf[9]);
2399 } else {
2400 foundit = success;
2401 }
2402 if (foundit != error_proto) {
2403 /* Read past all following headers */
2404 do {
2405 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2406 } while (mbuf_len > 2);
2407 }
2408 (void)BIO_flush(fbio);
2409 BIO_pop(fbio);
2410 BIO_free(fbio);
2411 if (foundit != success) {
2412 goto shut;
2413 }
2414 }
2415 break;
2416 case PROTO_IRC:
2417 {
2418 int numeric;
2419 BIO *fbio = BIO_new(BIO_f_buffer());
2420
2421 BIO_push(fbio, sbio);
2422 BIO_printf(fbio, "STARTTLS\r\n");
2423 (void)BIO_flush(fbio);
2424 width = SSL_get_fd(con) + 1;
2425
2426 do {
2427 numeric = 0;
2428
2429 FD_ZERO(&readfds);
2430 openssl_fdset(SSL_get_fd(con), &readfds);
2431 timeout.tv_sec = S_CLIENT_IRC_READ_TIMEOUT;
2432 timeout.tv_usec = 0;
2433 /*
2434 * If the IRCd doesn't respond within
2435 * S_CLIENT_IRC_READ_TIMEOUT seconds, assume
2436 * it doesn't support STARTTLS. Many IRCds
2437 * will not give _any_ sort of response to a
2438 * STARTTLS command when it's not supported.
2439 */
2440 if (!BIO_get_buffer_num_lines(fbio)
2441 && !BIO_pending(fbio)
2442 && !BIO_pending(sbio)
2443 && select(width, (void *)&readfds, NULL, NULL,
2444 &timeout) < 1) {
2445 BIO_printf(bio_err,
2446 "Timeout waiting for response (%d seconds).\n",
2447 S_CLIENT_IRC_READ_TIMEOUT);
2448 break;
2449 }
2450
2451 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2452 if (mbuf_len < 1 || sscanf(mbuf, "%*s %d", &numeric) != 1)
2453 break;
2454 /* :example.net 451 STARTTLS :You have not registered */
2455 /* :example.net 421 STARTTLS :Unknown command */
2456 if ((numeric == 451 || numeric == 421)
2457 && strstr(mbuf, "STARTTLS") != NULL) {
2458 BIO_printf(bio_err, "STARTTLS not supported: %s", mbuf);
2459 break;
2460 }
2461 if (numeric == 691) {
2462 BIO_printf(bio_err, "STARTTLS negotiation failed: ");
2463 ERR_print_errors(bio_err);
2464 break;
2465 }
2466 } while (numeric != 670);
2467
2468 (void)BIO_flush(fbio);
2469 BIO_pop(fbio);
2470 BIO_free(fbio);
2471 if (numeric != 670) {
2472 BIO_printf(bio_err, "Server does not support STARTTLS.\n");
2473 ret = 1;
2474 goto shut;
2475 }
2476 }
2477 break;
2478 case PROTO_MYSQL:
2479 {
2480 /* SSL request packet */
2481 static const unsigned char ssl_req[] = {
2482 /* payload_length, sequence_id */
2483 0x20, 0x00, 0x00, 0x01,
2484 /* payload */
2485 /* capability flags, CLIENT_SSL always set */
2486 0x85, 0xae, 0x7f, 0x00,
2487 /* max-packet size */
2488 0x00, 0x00, 0x00, 0x01,
2489 /* character set */
2490 0x21,
2491 /* string[23] reserved (all [0]) */
2492 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
2493 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
2494 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
2495 };
2496 int bytes = 0;
2497 int ssl_flg = 0x800;
2498 int pos;
2499 const unsigned char *packet = (const unsigned char *)sbuf;
2500
2501 /* Receiving Initial Handshake packet. */
2502 bytes = BIO_read(sbio, (void *)packet, BUFSIZZ);
2503 if (bytes < 0) {
2504 BIO_printf(bio_err, "BIO_read failed\n");
2505 goto shut;
2506 /* Packet length[3], Packet number[1] + minimum payload[17] */
2507 } else if (bytes < 21) {
2508 BIO_printf(bio_err, "MySQL packet too short.\n");
2509 goto shut;
2510 } else if (bytes != (4 + packet[0] +
2511 (packet[1] << 8) +
2512 (packet[2] << 16))) {
2513 BIO_printf(bio_err, "MySQL packet length does not match.\n");
2514 goto shut;
2515 /* protocol version[1] */
2516 } else if (packet[4] != 0xA) {
2517 BIO_printf(bio_err,
2518 "Only MySQL protocol version 10 is supported.\n");
2519 goto shut;
2520 }
2521
2522 pos = 5;
2523 /* server version[string+NULL] */
2524 for (;;) {
2525 if (pos >= bytes) {
2526 BIO_printf(bio_err, "Cannot confirm server version. ");
2527 goto shut;
2528 } else if (packet[pos++] == '\0') {
2529 break;
2530 }
2531 }
2532
2533 /* make sure we have at least 15 bytes left in the packet */
2534 if (pos + 15 > bytes) {
2535 BIO_printf(bio_err,
2536 "MySQL server handshake packet is broken.\n");
2537 goto shut;
2538 }
2539
2540 pos += 12; /* skip over conn id[4] + SALT[8] */
2541 if (packet[pos++] != '\0') { /* verify filler */
2542 BIO_printf(bio_err,
2543 "MySQL packet is broken.\n");
2544 goto shut;
2545 }
2546
2547 /* capability flags[2] */
2548 if (!((packet[pos] + (packet[pos + 1] << 8)) & ssl_flg)) {
2549 BIO_printf(bio_err, "MySQL server does not support SSL.\n");
2550 goto shut;
2551 }
2552
2553 /* Sending SSL Handshake packet. */
2554 BIO_write(sbio, ssl_req, sizeof(ssl_req));
2555 (void)BIO_flush(sbio);
2556 }
2557 break;
2558 case PROTO_POSTGRES:
2559 {
2560 static const unsigned char ssl_request[] = {
2561 /* Length SSLRequest */
2562 0, 0, 0, 8, 4, 210, 22, 47
2563 };
2564 int bytes;
2565
2566 /* Send SSLRequest packet */
2567 BIO_write(sbio, ssl_request, 8);
2568 (void)BIO_flush(sbio);
2569
2570 /* Reply will be a single S if SSL is enabled */
2571 bytes = BIO_read(sbio, sbuf, BUFSIZZ);
2572 if (bytes != 1 || sbuf[0] != 'S')
2573 goto shut;
2574 }
2575 break;
2576 case PROTO_NNTP:
2577 {
2578 int foundit = 0;
2579 BIO *fbio = BIO_new(BIO_f_buffer());
2580
2581 BIO_push(fbio, sbio);
2582 BIO_gets(fbio, mbuf, BUFSIZZ);
2583 /* STARTTLS command requires CAPABILITIES... */
2584 BIO_printf(fbio, "CAPABILITIES\r\n");
2585 (void)BIO_flush(fbio);
2586 BIO_gets(fbio, mbuf, BUFSIZZ);
2587 /* no point in trying to parse the CAPABILITIES response if there is none */
2588 if (strstr(mbuf, "101") != NULL) {
2589 /* wait for multi-line CAPABILITIES response */
2590 do {
2591 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2592 if (strstr(mbuf, "STARTTLS"))
2593 foundit = 1;
2594 } while (mbuf_len > 1 && mbuf[0] != '.');
2595 }
2596 (void)BIO_flush(fbio);
2597 BIO_pop(fbio);
2598 BIO_free(fbio);
2599 if (!foundit)
2600 BIO_printf(bio_err,
2601 "Didn't find STARTTLS in server response,"
2602 " trying anyway...\n");
2603 BIO_printf(sbio, "STARTTLS\r\n");
2604 mbuf_len = BIO_read(sbio, mbuf, BUFSIZZ);
2605 if (mbuf_len < 0) {
2606 BIO_printf(bio_err, "BIO_read failed\n");
2607 goto end;
2608 }
2609 mbuf[mbuf_len] = '\0';
2610 if (strstr(mbuf, "382") == NULL) {
2611 BIO_printf(bio_err, "STARTTLS failed: %s", mbuf);
2612 goto shut;
2613 }
2614 }
2615 break;
2616 case PROTO_SIEVE:
2617 {
2618 int foundit = 0;
2619 BIO *fbio = BIO_new(BIO_f_buffer());
2620
2621 BIO_push(fbio, sbio);
2622 /* wait for multi-line response to end from Sieve */
2623 do {
2624 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2625 /*
2626 * According to RFC 5804 § 1.7, capability
2627 * is case-insensitive, make it uppercase
2628 */
2629 if (mbuf_len > 1 && mbuf[0] == '"') {
2630 make_uppercase(mbuf);
2631 if (strncmp(mbuf, "\"STARTTLS\"", 10) == 0)
2632 foundit = 1;
2633 }
2634 } while (mbuf_len > 1 && mbuf[0] == '"');
2635 (void)BIO_flush(fbio);
2636 BIO_pop(fbio);
2637 BIO_free(fbio);
2638 if (!foundit)
2639 BIO_printf(bio_err,
2640 "Didn't find STARTTLS in server response,"
2641 " trying anyway...\n");
2642 BIO_printf(sbio, "STARTTLS\r\n");
2643 mbuf_len = BIO_read(sbio, mbuf, BUFSIZZ);
2644 if (mbuf_len < 0) {
2645 BIO_printf(bio_err, "BIO_read failed\n");
2646 goto end;
2647 }
2648 mbuf[mbuf_len] = '\0';
2649 if (mbuf_len < 2) {
2650 BIO_printf(bio_err, "STARTTLS failed: %s", mbuf);
2651 goto shut;
2652 }
2653 /*
2654 * According to RFC 5804 § 2.2, response codes are case-
2655 * insensitive, make it uppercase but preserve the response.
2656 */
2657 strncpy(sbuf, mbuf, 2);
2658 make_uppercase(sbuf);
2659 if (strncmp(sbuf, "OK", 2) != 0) {
2660 BIO_printf(bio_err, "STARTTLS not supported: %s", mbuf);
2661 goto shut;
2662 }
2663 }
2664 break;
2665 case PROTO_LDAP:
2666 {
2667 /* StartTLS Operation according to RFC 4511 */
2668 static char ldap_tls_genconf[] = "asn1=SEQUENCE:LDAPMessage\n"
2669 "[LDAPMessage]\n"
2670 "messageID=INTEGER:1\n"
2671 "extendedReq=EXPLICIT:23A,IMPLICIT:0C,"
2672 "FORMAT:ASCII,OCT:1.3.6.1.4.1.1466.20037\n";
2673 long errline = -1;
2674 char *genstr = NULL;
2675 int result = -1;
2676 ASN1_TYPE *atyp = NULL;
2677 BIO *ldapbio = BIO_new(BIO_s_mem());
2678 CONF *cnf = NCONF_new(NULL);
2679
2680 if (cnf == NULL) {
2681 BIO_free(ldapbio);
2682 goto end;
2683 }
2684 BIO_puts(ldapbio, ldap_tls_genconf);
2685 if (NCONF_load_bio(cnf, ldapbio, &errline) <= 0) {
2686 BIO_free(ldapbio);
2687 NCONF_free(cnf);
2688 if (errline <= 0) {
2689 BIO_printf(bio_err, "NCONF_load_bio failed\n");
2690 goto end;
2691 } else {
2692 BIO_printf(bio_err, "Error on line %ld\n", errline);
2693 goto end;
2694 }
2695 }
2696 BIO_free(ldapbio);
2697 genstr = NCONF_get_string(cnf, "default", "asn1");
2698 if (genstr == NULL) {
2699 NCONF_free(cnf);
2700 BIO_printf(bio_err, "NCONF_get_string failed\n");
2701 goto end;
2702 }
2703 atyp = ASN1_generate_nconf(genstr, cnf);
2704 if (atyp == NULL) {
2705 NCONF_free(cnf);
2706 BIO_printf(bio_err, "ASN1_generate_nconf failed\n");
2707 goto end;
2708 }
2709 NCONF_free(cnf);
2710
2711 /* Send SSLRequest packet */
2712 BIO_write(sbio, atyp->value.sequence->data,
2713 atyp->value.sequence->length);
2714 (void)BIO_flush(sbio);
2715 ASN1_TYPE_free(atyp);
2716
2717 mbuf_len = BIO_read(sbio, mbuf, BUFSIZZ);
2718 if (mbuf_len < 0) {
2719 BIO_printf(bio_err, "BIO_read failed\n");
2720 goto end;
2721 }
2722 result = ldap_ExtendedResponse_parse(mbuf, mbuf_len);
2723 if (result < 0) {
2724 BIO_printf(bio_err, "ldap_ExtendedResponse_parse failed\n");
2725 goto shut;
2726 } else if (result > 0) {
2727 BIO_printf(bio_err, "STARTTLS failed, LDAP Result Code: %i\n",
2728 result);
2729 goto shut;
2730 }
2731 mbuf_len = 0;
2732 }
2733 break;
2734 }
2735
2736 if (early_data_file != NULL
2737 && ((SSL_get0_session(con) != NULL
2738 && SSL_SESSION_get_max_early_data(SSL_get0_session(con)) > 0)
2739 || (psksess != NULL
2740 && SSL_SESSION_get_max_early_data(psksess) > 0))) {
2741 BIO *edfile = BIO_new_file(early_data_file, "r");
2742 size_t readbytes, writtenbytes;
2743 int finish = 0;
2744
2745 if (edfile == NULL) {
2746 BIO_printf(bio_err, "Cannot open early data file\n");
2747 goto shut;
2748 }
2749
2750 while (!finish) {
2751 if (!BIO_read_ex(edfile, cbuf, BUFSIZZ, &readbytes))
2752 finish = 1;
2753
2754 while (!SSL_write_early_data(con, cbuf, readbytes, &writtenbytes)) {
2755 switch (SSL_get_error(con, 0)) {
2756 case SSL_ERROR_WANT_WRITE:
2757 case SSL_ERROR_WANT_ASYNC:
2758 case SSL_ERROR_WANT_READ:
2759 /* Just keep trying - busy waiting */
2760 continue;
2761 default:
2762 BIO_printf(bio_err, "Error writing early data\n");
2763 BIO_free(edfile);
2764 ERR_print_errors(bio_err);
2765 goto shut;
2766 }
2767 }
2768 }
2769
2770 BIO_free(edfile);
2771 }
2772
2773 for (;;) {
2774 FD_ZERO(&readfds);
2775 FD_ZERO(&writefds);
2776
2777 if (SSL_is_dtls(con) && DTLSv1_get_timeout(con, &timeout))
2778 timeoutp = &timeout;
2779 else
2780 timeoutp = NULL;
2781
2782 if (!SSL_is_init_finished(con) && SSL_total_renegotiations(con) == 0
2783 && SSL_get_key_update_type(con) == SSL_KEY_UPDATE_NONE) {
2784 in_init = 1;
2785 tty_on = 0;
2786 } else {
2787 tty_on = 1;
2788 if (in_init) {
2789 in_init = 0;
2790
2791 if (c_brief) {
2792 BIO_puts(bio_err, "CONNECTION ESTABLISHED\n");
2793 print_ssl_summary(con);
2794 }
2795
2796 print_stuff(bio_c_out, con, full_log);
2797 if (full_log > 0)
2798 full_log--;
2799
2800 if (starttls_proto) {
2801 BIO_write(bio_err, mbuf, mbuf_len);
2802 /* We don't need to know any more */
2803 if (!reconnect)
2804 starttls_proto = PROTO_OFF;
2805 }
2806
2807 if (reconnect) {
2808 reconnect--;
2809 BIO_printf(bio_c_out,
2810 "drop connection and then reconnect\n");
2811 do_ssl_shutdown(con);
2812 SSL_set_connect_state(con);
2813 BIO_closesocket(SSL_get_fd(con));
2814 goto re_start;
2815 }
2816 }
2817 }
2818
2819 ssl_pending = read_ssl && SSL_has_pending(con);
2820
2821 if (!ssl_pending) {
2822 #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS)
2823 if (tty_on) {
2824 /*
2825 * Note that select() returns when read _would not block_,
2826 * and EOF satisfies that. To avoid a CPU-hogging loop,
2827 * set the flag so we exit.
2828 */
2829 if (read_tty && !at_eof)
2830 openssl_fdset(fileno_stdin(), &readfds);
2831 #if !defined(OPENSSL_SYS_VMS)
2832 if (write_tty)
2833 openssl_fdset(fileno_stdout(), &writefds);
2834 #endif
2835 }
2836 if (read_ssl)
2837 openssl_fdset(SSL_get_fd(con), &readfds);
2838 if (write_ssl)
2839 openssl_fdset(SSL_get_fd(con), &writefds);
2840 #else
2841 if (!tty_on || !write_tty) {
2842 if (read_ssl)
2843 openssl_fdset(SSL_get_fd(con), &readfds);
2844 if (write_ssl)
2845 openssl_fdset(SSL_get_fd(con), &writefds);
2846 }
2847 #endif
2848
2849 /*
2850 * Note: under VMS with SOCKETSHR the second parameter is
2851 * currently of type (int *) whereas under other systems it is
2852 * (void *) if you don't have a cast it will choke the compiler:
2853 * if you do have a cast then you can either go for (int *) or
2854 * (void *).
2855 */
2856 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
2857 /*
2858 * Under Windows/DOS we make the assumption that we can always
2859 * write to the tty: therefore if we need to write to the tty we
2860 * just fall through. Otherwise we timeout the select every
2861 * second and see if there are any keypresses. Note: this is a
2862 * hack, in a proper Windows application we wouldn't do this.
2863 */
2864 i = 0;
2865 if (!write_tty) {
2866 if (read_tty) {
2867 tv.tv_sec = 1;
2868 tv.tv_usec = 0;
2869 i = select(width, (void *)&readfds, (void *)&writefds,
2870 NULL, &tv);
2871 if (!i && (!has_stdin_waiting() || !read_tty))
2872 continue;
2873 } else
2874 i = select(width, (void *)&readfds, (void *)&writefds,
2875 NULL, timeoutp);
2876 }
2877 #else
2878 i = select(width, (void *)&readfds, (void *)&writefds,
2879 NULL, timeoutp);
2880 #endif
2881 if (i < 0) {
2882 BIO_printf(bio_err, "bad select %d\n",
2883 get_last_socket_error());
2884 goto shut;
2885 }
2886 }
2887
2888 if (SSL_is_dtls(con) && DTLSv1_handle_timeout(con) > 0)
2889 BIO_printf(bio_err, "TIMEOUT occurred\n");
2890
2891 if (!ssl_pending && FD_ISSET(SSL_get_fd(con), &writefds)) {
2892 k = SSL_write(con, &(cbuf[cbuf_off]), (unsigned int)cbuf_len);
2893 switch (SSL_get_error(con, k)) {
2894 case SSL_ERROR_NONE:
2895 cbuf_off += k;
2896 cbuf_len -= k;
2897 if (k <= 0)
2898 goto end;
2899 /* we have done a write(con,NULL,0); */
2900 if (cbuf_len <= 0) {
2901 read_tty = 1;
2902 write_ssl = 0;
2903 } else { /* if (cbuf_len > 0) */
2904
2905 read_tty = 0;
2906 write_ssl = 1;
2907 }
2908 break;
2909 case SSL_ERROR_WANT_WRITE:
2910 BIO_printf(bio_c_out, "write W BLOCK\n");
2911 write_ssl = 1;
2912 read_tty = 0;
2913 break;
2914 case SSL_ERROR_WANT_ASYNC:
2915 BIO_printf(bio_c_out, "write A BLOCK\n");
2916 wait_for_async(con);
2917 write_ssl = 1;
2918 read_tty = 0;
2919 break;
2920 case SSL_ERROR_WANT_READ:
2921 BIO_printf(bio_c_out, "write R BLOCK\n");
2922 write_tty = 0;
2923 read_ssl = 1;
2924 write_ssl = 0;
2925 break;
2926 case SSL_ERROR_WANT_X509_LOOKUP:
2927 BIO_printf(bio_c_out, "write X BLOCK\n");
2928 break;
2929 case SSL_ERROR_ZERO_RETURN:
2930 if (cbuf_len != 0) {
2931 BIO_printf(bio_c_out, "shutdown\n");
2932 ret = 0;
2933 goto shut;
2934 } else {
2935 read_tty = 1;
2936 write_ssl = 0;
2937 break;
2938 }
2939
2940 case SSL_ERROR_SYSCALL:
2941 if ((k != 0) || (cbuf_len != 0)) {
2942 BIO_printf(bio_err, "write:errno=%d\n",
2943 get_last_socket_error());
2944 goto shut;
2945 } else {
2946 read_tty = 1;
2947 write_ssl = 0;
2948 }
2949 break;
2950 case SSL_ERROR_WANT_ASYNC_JOB:
2951 /* This shouldn't ever happen in s_client - treat as an error */
2952 case SSL_ERROR_SSL:
2953 ERR_print_errors(bio_err);
2954 goto shut;
2955 }
2956 }
2957 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_VMS)
2958 /* Assume Windows/DOS/BeOS can always write */
2959 else if (!ssl_pending && write_tty)
2960 #else
2961 else if (!ssl_pending && FD_ISSET(fileno_stdout(), &writefds))
2962 #endif
2963 {
2964 #ifdef CHARSET_EBCDIC
2965 ascii2ebcdic(&(sbuf[sbuf_off]), &(sbuf[sbuf_off]), sbuf_len);
2966 #endif
2967 i = raw_write_stdout(&(sbuf[sbuf_off]), sbuf_len);
2968
2969 if (i <= 0) {
2970 BIO_printf(bio_c_out, "DONE\n");
2971 ret = 0;
2972 goto shut;
2973 }
2974
2975 sbuf_len -= i;
2976 sbuf_off += i;
2977 if (sbuf_len <= 0) {
2978 read_ssl = 1;
2979 write_tty = 0;
2980 }
2981 } else if (ssl_pending || FD_ISSET(SSL_get_fd(con), &readfds)) {
2982 #ifdef RENEG
2983 {
2984 static int iiii;
2985 if (++iiii == 52) {
2986 SSL_renegotiate(con);
2987 iiii = 0;
2988 }
2989 }
2990 #endif
2991 k = SSL_read(con, sbuf, 1024 /* BUFSIZZ */ );
2992
2993 switch (SSL_get_error(con, k)) {
2994 case SSL_ERROR_NONE:
2995 if (k <= 0)
2996 goto end;
2997 sbuf_off = 0;
2998 sbuf_len = k;
2999
3000 read_ssl = 0;
3001 write_tty = 1;
3002 break;
3003 case SSL_ERROR_WANT_ASYNC:
3004 BIO_printf(bio_c_out, "read A BLOCK\n");
3005 wait_for_async(con);
3006 write_tty = 0;
3007 read_ssl = 1;
3008 if ((read_tty == 0) && (write_ssl == 0))
3009 write_ssl = 1;
3010 break;
3011 case SSL_ERROR_WANT_WRITE:
3012 BIO_printf(bio_c_out, "read W BLOCK\n");
3013 write_ssl = 1;
3014 read_tty = 0;
3015 break;
3016 case SSL_ERROR_WANT_READ:
3017 BIO_printf(bio_c_out, "read R BLOCK\n");
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_X509_LOOKUP:
3024 BIO_printf(bio_c_out, "read X BLOCK\n");
3025 break;
3026 case SSL_ERROR_SYSCALL:
3027 ret = get_last_socket_error();
3028 if (c_brief)
3029 BIO_puts(bio_err, "CONNECTION CLOSED BY SERVER\n");
3030 else
3031 BIO_printf(bio_err, "read:errno=%d\n", ret);
3032 goto shut;
3033 case SSL_ERROR_ZERO_RETURN:
3034 BIO_printf(bio_c_out, "closed\n");
3035 ret = 0;
3036 goto shut;
3037 case SSL_ERROR_WANT_ASYNC_JOB:
3038 /* This shouldn't ever happen in s_client. Treat as an error */
3039 case SSL_ERROR_SSL:
3040 ERR_print_errors(bio_err);
3041 goto shut;
3042 }
3043 }
3044 /* OPENSSL_SYS_MSDOS includes OPENSSL_SYS_WINDOWS */
3045 #if defined(OPENSSL_SYS_MSDOS)
3046 else if (has_stdin_waiting())
3047 #else
3048 else if (FD_ISSET(fileno_stdin(), &readfds))
3049 #endif
3050 {
3051 if (crlf) {
3052 int j, lf_num;
3053
3054 i = raw_read_stdin(cbuf, BUFSIZZ / 2);
3055 lf_num = 0;
3056 /* both loops are skipped when i <= 0 */
3057 for (j = 0; j < i; j++)
3058 if (cbuf[j] == '\n')
3059 lf_num++;
3060 for (j = i - 1; j >= 0; j--) {
3061 cbuf[j + lf_num] = cbuf[j];
3062 if (cbuf[j] == '\n') {
3063 lf_num--;
3064 i++;
3065 cbuf[j + lf_num] = '\r';
3066 }
3067 }
3068 assert(lf_num == 0);
3069 } else
3070 i = raw_read_stdin(cbuf, BUFSIZZ);
3071 #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS)
3072 if (i == 0)
3073 at_eof = 1;
3074 #endif
3075
3076 if ((!c_ign_eof) && ((i <= 0) || (cbuf[0] == 'Q' && cmdletters))) {
3077 BIO_printf(bio_err, "DONE\n");
3078 ret = 0;
3079 goto shut;
3080 }
3081
3082 if ((!c_ign_eof) && (cbuf[0] == 'R' && cmdletters)) {
3083 BIO_printf(bio_err, "RENEGOTIATING\n");
3084 SSL_renegotiate(con);
3085 cbuf_len = 0;
3086 } else if (!c_ign_eof && (cbuf[0] == 'K' || cbuf[0] == 'k' )
3087 && cmdletters) {
3088 BIO_printf(bio_err, "KEYUPDATE\n");
3089 SSL_key_update(con,
3090 cbuf[0] == 'K' ? SSL_KEY_UPDATE_REQUESTED
3091 : SSL_KEY_UPDATE_NOT_REQUESTED);
3092 cbuf_len = 0;
3093 }
3094 #ifndef OPENSSL_NO_HEARTBEATS
3095 else if ((!c_ign_eof) && (cbuf[0] == 'B' && cmdletters)) {
3096 BIO_printf(bio_err, "HEARTBEATING\n");
3097 SSL_heartbeat(con);
3098 cbuf_len = 0;
3099 }
3100 #endif
3101 else {
3102 cbuf_len = i;
3103 cbuf_off = 0;
3104 #ifdef CHARSET_EBCDIC
3105 ebcdic2ascii(cbuf, cbuf, i);
3106 #endif
3107 }
3108
3109 write_ssl = 1;
3110 read_tty = 0;
3111 }
3112 }
3113
3114 ret = 0;
3115 shut:
3116 if (in_init)
3117 print_stuff(bio_c_out, con, full_log);
3118 do_ssl_shutdown(con);
3119
3120 /*
3121 * If we ended with an alert being sent, but still with data in the
3122 * network buffer to be read, then calling BIO_closesocket() will
3123 * result in a TCP-RST being sent. On some platforms (notably
3124 * Windows) then this will result in the peer immediately abandoning
3125 * the connection including any buffered alert data before it has
3126 * had a chance to be read. Shutting down the sending side first,
3127 * and then closing the socket sends TCP-FIN first followed by
3128 * TCP-RST. This seems to allow the peer to read the alert data.
3129 */
3130 shutdown(SSL_get_fd(con), 1); /* SHUT_WR */
3131 /*
3132 * We just said we have nothing else to say, but it doesn't mean that
3133 * the other side has nothing. It's even recommended to consume incoming
3134 * data. [In testing context this ensures that alerts are passed on...]
3135 */
3136 timeout.tv_sec = 0;
3137 timeout.tv_usec = 500000; /* some extreme round-trip */
3138 do {
3139 FD_ZERO(&readfds);
3140 openssl_fdset(s, &readfds);
3141 } while (select(s + 1, &readfds, NULL, NULL, &timeout) > 0
3142 && BIO_read(sbio, sbuf, BUFSIZZ) > 0);
3143
3144 BIO_closesocket(SSL_get_fd(con));
3145 end:
3146 if (con != NULL) {
3147 if (prexit != 0)
3148 print_stuff(bio_c_out, con, 1);
3149 SSL_free(con);
3150 }
3151 SSL_SESSION_free(psksess);
3152 #if !defined(OPENSSL_NO_NEXTPROTONEG)
3153 OPENSSL_free(next_proto.data);
3154 #endif
3155 SSL_CTX_free(ctx);
3156 set_keylog_file(NULL, NULL);
3157 X509_free(cert);
3158 sk_X509_CRL_pop_free(crls, X509_CRL_free);
3159 EVP_PKEY_free(key);
3160 sk_X509_pop_free(chain, X509_free);
3161 OPENSSL_free(pass);
3162 #ifndef OPENSSL_NO_SRP
3163 OPENSSL_free(srp_arg.srppassin);
3164 #endif
3165 OPENSSL_free(connectstr);
3166 OPENSSL_free(bindstr);
3167 OPENSSL_free(host);
3168 OPENSSL_free(port);
3169 X509_VERIFY_PARAM_free(vpm);
3170 ssl_excert_free(exc);
3171 sk_OPENSSL_STRING_free(ssl_args);
3172 sk_OPENSSL_STRING_free(dane_tlsa_rrset);
3173 SSL_CONF_CTX_free(cctx);
3174 OPENSSL_clear_free(cbuf, BUFSIZZ);
3175 OPENSSL_clear_free(sbuf, BUFSIZZ);
3176 OPENSSL_clear_free(mbuf, BUFSIZZ);
3177 if (proxypass != NULL)
3178 OPENSSL_clear_free(proxypass, strlen(proxypass));
3179 release_engine(e);
3180 BIO_free(bio_c_out);
3181 bio_c_out = NULL;
3182 BIO_free(bio_c_msg);
3183 bio_c_msg = NULL;
3184 return ret;
3185 }
3186
3187 static void print_stuff(BIO *bio, SSL *s, int full)
3188 {
3189 X509 *peer = NULL;
3190 STACK_OF(X509) *sk;
3191 const SSL_CIPHER *c;
3192 int i, istls13 = (SSL_version(s) == TLS1_3_VERSION);
3193 long verify_result;
3194 #ifndef OPENSSL_NO_COMP
3195 const COMP_METHOD *comp, *expansion;
3196 #endif
3197 unsigned char *exportedkeymat;
3198 #ifndef OPENSSL_NO_CT
3199 const SSL_CTX *ctx = SSL_get_SSL_CTX(s);
3200 #endif
3201
3202 if (full) {
3203 int got_a_chain = 0;
3204
3205 sk = SSL_get_peer_cert_chain(s);
3206 if (sk != NULL) {
3207 got_a_chain = 1;
3208
3209 BIO_printf(bio, "---\nCertificate chain\n");
3210 for (i = 0; i < sk_X509_num(sk); i++) {
3211 BIO_printf(bio, "%2d s:", i);
3212 X509_NAME_print_ex(bio, X509_get_subject_name(sk_X509_value(sk, i)), 0, get_nameopt());
3213 BIO_puts(bio, "\n");
3214 BIO_printf(bio, " i:");
3215 X509_NAME_print_ex(bio, X509_get_issuer_name(sk_X509_value(sk, i)), 0, get_nameopt());
3216 BIO_puts(bio, "\n");
3217 if (c_showcerts)
3218 PEM_write_bio_X509(bio, sk_X509_value(sk, i));
3219 }
3220 }
3221
3222 BIO_printf(bio, "---\n");
3223 peer = SSL_get_peer_certificate(s);
3224 if (peer != NULL) {
3225 BIO_printf(bio, "Server certificate\n");
3226
3227 /* Redundant if we showed the whole chain */
3228 if (!(c_showcerts && got_a_chain))
3229 PEM_write_bio_X509(bio, peer);
3230 dump_cert_text(bio, peer);
3231 } else {
3232 BIO_printf(bio, "no peer certificate available\n");
3233 }
3234 print_ca_names(bio, s);
3235
3236 ssl_print_sigalgs(bio, s);
3237 ssl_print_tmp_key(bio, s);
3238
3239 #ifndef OPENSSL_NO_CT
3240 /*
3241 * When the SSL session is anonymous, or resumed via an abbreviated
3242 * handshake, no SCTs are provided as part of the handshake. While in
3243 * a resumed session SCTs may be present in the session's certificate,
3244 * no callbacks are invoked to revalidate these, and in any case that
3245 * set of SCTs may be incomplete. Thus it makes little sense to
3246 * attempt to display SCTs from a resumed session's certificate, and of
3247 * course none are associated with an anonymous peer.
3248 */
3249 if (peer != NULL && !SSL_session_reused(s) && SSL_ct_is_enabled(s)) {
3250 const STACK_OF(SCT) *scts = SSL_get0_peer_scts(s);
3251 int sct_count = scts != NULL ? sk_SCT_num(scts) : 0;
3252
3253 BIO_printf(bio, "---\nSCTs present (%i)\n", sct_count);
3254 if (sct_count > 0) {
3255 const CTLOG_STORE *log_store = SSL_CTX_get0_ctlog_store(ctx);
3256
3257 BIO_printf(bio, "---\n");
3258 for (i = 0; i < sct_count; ++i) {
3259 SCT *sct = sk_SCT_value(scts, i);
3260
3261 BIO_printf(bio, "SCT validation status: %s\n",
3262 SCT_validation_status_string(sct));
3263 SCT_print(sct, bio, 0, log_store);
3264 if (i < sct_count - 1)
3265 BIO_printf(bio, "\n---\n");
3266 }
3267 BIO_printf(bio, "\n");
3268 }
3269 }
3270 #endif
3271
3272 BIO_printf(bio,
3273 "---\nSSL handshake has read %ju bytes "
3274 "and written %ju bytes\n",
3275 BIO_number_read(SSL_get_rbio(s)),
3276 BIO_number_written(SSL_get_wbio(s)));
3277 }
3278 print_verify_detail(s, bio);
3279 BIO_printf(bio, (SSL_session_reused(s) ? "---\nReused, " : "---\nNew, "));
3280 c = SSL_get_current_cipher(s);
3281 BIO_printf(bio, "%s, Cipher is %s\n",
3282 SSL_CIPHER_get_version(c), SSL_CIPHER_get_name(c));
3283 if (peer != NULL) {
3284 EVP_PKEY *pktmp;
3285
3286 pktmp = X509_get0_pubkey(peer);
3287 BIO_printf(bio, "Server public key is %d bit\n",
3288 EVP_PKEY_bits(pktmp));
3289 }
3290 BIO_printf(bio, "Secure Renegotiation IS%s supported\n",
3291 SSL_get_secure_renegotiation_support(s) ? "" : " NOT");
3292 #ifndef OPENSSL_NO_COMP
3293 comp = SSL_get_current_compression(s);
3294 expansion = SSL_get_current_expansion(s);
3295 BIO_printf(bio, "Compression: %s\n",
3296 comp ? SSL_COMP_get_name(comp) : "NONE");
3297 BIO_printf(bio, "Expansion: %s\n",
3298 expansion ? SSL_COMP_get_name(expansion) : "NONE");
3299 #endif
3300 #ifndef OPENSSL_NO_KTLS
3301 if (BIO_get_ktls_send(SSL_get_wbio(s)))
3302 BIO_printf(bio_err, "Using Kernel TLS for sending\n");
3303 #endif
3304
3305 #ifdef SSL_DEBUG
3306 {
3307 /* Print out local port of connection: useful for debugging */
3308 int sock;
3309 union BIO_sock_info_u info;
3310
3311 sock = SSL_get_fd(s);
3312 if ((info.addr = BIO_ADDR_new()) != NULL
3313 && BIO_sock_info(sock, BIO_SOCK_INFO_ADDRESS, &info)) {
3314 BIO_printf(bio_c_out, "LOCAL PORT is %u\n",
3315 ntohs(BIO_ADDR_rawport(info.addr)));
3316 }
3317 BIO_ADDR_free(info.addr);
3318 }
3319 #endif
3320
3321 #if !defined(OPENSSL_NO_NEXTPROTONEG)
3322 if (next_proto.status != -1) {
3323 const unsigned char *proto;
3324 unsigned int proto_len;
3325 SSL_get0_next_proto_negotiated(s, &proto, &proto_len);
3326 BIO_printf(bio, "Next protocol: (%d) ", next_proto.status);
3327 BIO_write(bio, proto, proto_len);
3328 BIO_write(bio, "\n", 1);
3329 }
3330 #endif
3331 {
3332 const unsigned char *proto;
3333 unsigned int proto_len;
3334 SSL_get0_alpn_selected(s, &proto, &proto_len);
3335 if (proto_len > 0) {
3336 BIO_printf(bio, "ALPN protocol: ");
3337 BIO_write(bio, proto, proto_len);
3338 BIO_write(bio, "\n", 1);
3339 } else
3340 BIO_printf(bio, "No ALPN negotiated\n");
3341 }
3342
3343 #ifndef OPENSSL_NO_SRTP
3344 {
3345 SRTP_PROTECTION_PROFILE *srtp_profile =
3346 SSL_get_selected_srtp_profile(s);
3347
3348 if (srtp_profile)
3349 BIO_printf(bio, "SRTP Extension negotiated, profile=%s\n",
3350 srtp_profile->name);
3351 }
3352 #endif
3353
3354 if (istls13) {
3355 switch (SSL_get_early_data_status(s)) {
3356 case SSL_EARLY_DATA_NOT_SENT:
3357 BIO_printf(bio, "Early data was not sent\n");
3358 break;
3359
3360 case SSL_EARLY_DATA_REJECTED:
3361 BIO_printf(bio, "Early data was rejected\n");
3362 break;
3363
3364 case SSL_EARLY_DATA_ACCEPTED:
3365 BIO_printf(bio, "Early data was accepted\n");
3366 break;
3367
3368 }
3369
3370 /*
3371 * We also print the verify results when we dump session information,
3372 * but in TLSv1.3 we may not get that right away (or at all) depending
3373 * on when we get a NewSessionTicket. Therefore we print it now as well.
3374 */
3375 verify_result = SSL_get_verify_result(s);
3376 BIO_printf(bio, "Verify return code: %ld (%s)\n", verify_result,
3377 X509_verify_cert_error_string(verify_result));
3378 } else {
3379 /* In TLSv1.3 we do this on arrival of a NewSessionTicket */
3380 SSL_SESSION_print(bio, SSL_get_session(s));
3381 }
3382
3383 if (SSL_get_session(s) != NULL && keymatexportlabel != NULL) {
3384 BIO_printf(bio, "Keying material exporter:\n");
3385 BIO_printf(bio, " Label: '%s'\n", keymatexportlabel);
3386 BIO_printf(bio, " Length: %i bytes\n", keymatexportlen);
3387 exportedkeymat = app_malloc(keymatexportlen, "export key");
3388 if (!SSL_export_keying_material(s, exportedkeymat,
3389 keymatexportlen,
3390 keymatexportlabel,
3391 strlen(keymatexportlabel),
3392 NULL, 0, 0)) {
3393 BIO_printf(bio, " Error\n");
3394 } else {
3395 BIO_printf(bio, " Keying material: ");
3396 for (i = 0; i < keymatexportlen; i++)
3397 BIO_printf(bio, "%02X", exportedkeymat[i]);
3398 BIO_printf(bio, "\n");
3399 }
3400 OPENSSL_free(exportedkeymat);
3401 }
3402 BIO_printf(bio, "---\n");
3403 X509_free(peer);
3404 /* flush, or debugging output gets mixed with http response */
3405 (void)BIO_flush(bio);
3406 }
3407
3408 # ifndef OPENSSL_NO_OCSP
3409 static int ocsp_resp_cb(SSL *s, void *arg)
3410 {
3411 const unsigned char *p;
3412 int len;
3413 OCSP_RESPONSE *rsp;
3414 len = SSL_get_tlsext_status_ocsp_resp(s, &p);
3415 BIO_puts(arg, "OCSP response: ");
3416 if (p == NULL) {
3417 BIO_puts(arg, "no response sent\n");
3418 return 1;
3419 }
3420 rsp = d2i_OCSP_RESPONSE(NULL, &p, len);
3421 if (rsp == NULL) {
3422 BIO_puts(arg, "response parse error\n");
3423 BIO_dump_indent(arg, (char *)p, len, 4);
3424 return 0;
3425 }
3426 BIO_puts(arg, "\n======================================\n");
3427 OCSP_RESPONSE_print(arg, rsp, 0);
3428 BIO_puts(arg, "======================================\n");
3429 OCSP_RESPONSE_free(rsp);
3430 return 1;
3431 }
3432 # endif
3433
3434 static int ldap_ExtendedResponse_parse(const char *buf, long rem)
3435 {
3436 const unsigned char *cur, *end;
3437 long len;
3438 int tag, xclass, inf, ret = -1;
3439
3440 cur = (const unsigned char *)buf;
3441 end = cur + rem;
3442
3443 /*
3444 * From RFC 4511:
3445 *
3446 * LDAPMessage ::= SEQUENCE {
3447 * messageID MessageID,
3448 * protocolOp CHOICE {
3449 * ...
3450 * extendedResp ExtendedResponse,
3451 * ... },
3452 * controls [0] Controls OPTIONAL }
3453 *
3454 * ExtendedResponse ::= [APPLICATION 24] SEQUENCE {
3455 * COMPONENTS OF LDAPResult,
3456 * responseName [10] LDAPOID OPTIONAL,
3457 * responseValue [11] OCTET STRING OPTIONAL }
3458 *
3459 * LDAPResult ::= SEQUENCE {
3460 * resultCode ENUMERATED {
3461 * success (0),
3462 * ...
3463 * other (80),
3464 * ... },
3465 * matchedDN LDAPDN,
3466 * diagnosticMessage LDAPString,
3467 * referral [3] Referral OPTIONAL }
3468 */
3469
3470 /* pull SEQUENCE */
3471 inf = ASN1_get_object(&cur, &len, &tag, &xclass, rem);
3472 if (inf != V_ASN1_CONSTRUCTED || tag != V_ASN1_SEQUENCE ||
3473 (rem = end - cur, len > rem)) {
3474 BIO_printf(bio_err, "Unexpected LDAP response\n");
3475 goto end;
3476 }
3477
3478 rem = len; /* ensure that we don't overstep the SEQUENCE */
3479
3480 /* pull MessageID */
3481 inf = ASN1_get_object(&cur, &len, &tag, &xclass, rem);
3482 if (inf != V_ASN1_UNIVERSAL || tag != V_ASN1_INTEGER ||
3483 (rem = end - cur, len > rem)) {
3484 BIO_printf(bio_err, "No MessageID\n");
3485 goto end;
3486 }
3487
3488 cur += len; /* shall we check for MessageId match or just skip? */
3489
3490 /* pull [APPLICATION 24] */
3491 rem = end - cur;
3492 inf = ASN1_get_object(&cur, &len, &tag, &xclass, rem);
3493 if (inf != V_ASN1_CONSTRUCTED || xclass != V_ASN1_APPLICATION ||
3494 tag != 24) {
3495 BIO_printf(bio_err, "Not ExtendedResponse\n");
3496 goto end;
3497 }
3498
3499 /* pull resultCode */
3500 rem = end - cur;
3501 inf = ASN1_get_object(&cur, &len, &tag, &xclass, rem);
3502 if (inf != V_ASN1_UNIVERSAL || tag != V_ASN1_ENUMERATED || len == 0 ||
3503 (rem = end - cur, len > rem)) {
3504 BIO_printf(bio_err, "Not LDAPResult\n");
3505 goto end;
3506 }
3507
3508 /* len should always be one, but just in case... */
3509 for (ret = 0, inf = 0; inf < len; inf++) {
3510 ret <<= 8;
3511 ret |= cur[inf];
3512 }
3513 /* There is more data, but we don't care... */
3514 end:
3515 return ret;
3516 }
3517
3518 /*
3519 * BASE64 encoder: used only for encoding basic proxy authentication credentials
3520 */
3521 static char *base64encode (const void *buf, size_t len)
3522 {
3523 int i;
3524 size_t outl;
3525 char *out;
3526
3527 /* Calculate size of encoded data */
3528 outl = (len / 3);
3529 if (len % 3 > 0)
3530 outl++;
3531 outl <<= 2;
3532 out = app_malloc(outl + 1, "base64 encode buffer");
3533
3534 i = EVP_EncodeBlock((unsigned char *)out, buf, len);
3535 assert(i <= (int)outl);
3536 if (i < 0)
3537 *out = '\0';
3538 return out;
3539 }
3540
3541 #endif /* OPENSSL_NO_SOCK */
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