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Remove "-immedate_renegotiation" option
[thirdparty/openssl.git] / apps / s_client.c
1 /*
2 * Copyright 1995-2021 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/trace.h>
42 #include <openssl/async.h>
43 #ifndef OPENSSL_NO_CT
44 # include <openssl/ct.h>
45 #endif
46 #include "s_apps.h"
47 #include "timeouts.h"
48 #include "internal/sockets.h"
49
50 #if defined(__has_feature)
51 # if __has_feature(memory_sanitizer)
52 # include <sanitizer/msan_interface.h>
53 # endif
54 #endif
55
56 #undef BUFSIZZ
57 #define BUFSIZZ 1024*8
58 #define S_CLIENT_IRC_READ_TIMEOUT 8
59
60 static char *prog;
61 static int c_debug = 0;
62 static int c_showcerts = 0;
63 static char *keymatexportlabel = NULL;
64 static int keymatexportlen = 20;
65 static BIO *bio_c_out = NULL;
66 static int c_quiet = 0;
67 static char *sess_out = NULL;
68 static SSL_SESSION *psksess = NULL;
69
70 static void print_stuff(BIO *berr, SSL *con, int full);
71 #ifndef OPENSSL_NO_OCSP
72 static int ocsp_resp_cb(SSL *s, void *arg);
73 #endif
74 static int ldap_ExtendedResponse_parse(const char *buf, long rem);
75 static int is_dNS_name(const char *host);
76
77 static int saved_errno;
78
79 static void save_errno(void)
80 {
81 saved_errno = errno;
82 errno = 0;
83 }
84
85 static int restore_errno(void)
86 {
87 int ret = errno;
88 errno = saved_errno;
89 return ret;
90 }
91
92 /* Default PSK identity and key */
93 static char *psk_identity = "Client_identity";
94
95 #ifndef OPENSSL_NO_PSK
96 static unsigned int psk_client_cb(SSL *ssl, const char *hint, char *identity,
97 unsigned int max_identity_len,
98 unsigned char *psk,
99 unsigned int max_psk_len)
100 {
101 int ret;
102 long key_len;
103 unsigned char *key;
104
105 if (c_debug)
106 BIO_printf(bio_c_out, "psk_client_cb\n");
107 if (!hint) {
108 /* no ServerKeyExchange message */
109 if (c_debug)
110 BIO_printf(bio_c_out,
111 "NULL received PSK identity hint, continuing anyway\n");
112 } else if (c_debug) {
113 BIO_printf(bio_c_out, "Received PSK identity hint '%s'\n", hint);
114 }
115
116 /*
117 * lookup PSK identity and PSK key based on the given identity hint here
118 */
119 ret = BIO_snprintf(identity, max_identity_len, "%s", psk_identity);
120 if (ret < 0 || (unsigned int)ret > max_identity_len)
121 goto out_err;
122 if (c_debug)
123 BIO_printf(bio_c_out, "created identity '%s' len=%d\n", identity,
124 ret);
125
126 /* convert the PSK key to binary */
127 key = OPENSSL_hexstr2buf(psk_key, &key_len);
128 if (key == NULL) {
129 BIO_printf(bio_err, "Could not convert PSK key '%s' to buffer\n",
130 psk_key);
131 return 0;
132 }
133 if (max_psk_len > INT_MAX || key_len > (long)max_psk_len) {
134 BIO_printf(bio_err,
135 "psk buffer of callback is too small (%d) for key (%ld)\n",
136 max_psk_len, key_len);
137 OPENSSL_free(key);
138 return 0;
139 }
140
141 memcpy(psk, key, key_len);
142 OPENSSL_free(key);
143
144 if (c_debug)
145 BIO_printf(bio_c_out, "created PSK len=%ld\n", key_len);
146
147 return key_len;
148 out_err:
149 if (c_debug)
150 BIO_printf(bio_err, "Error in PSK client callback\n");
151 return 0;
152 }
153 #endif
154
155 const unsigned char tls13_aes128gcmsha256_id[] = { 0x13, 0x01 };
156 const unsigned char tls13_aes256gcmsha384_id[] = { 0x13, 0x02 };
157
158 static int psk_use_session_cb(SSL *s, const EVP_MD *md,
159 const unsigned char **id, size_t *idlen,
160 SSL_SESSION **sess)
161 {
162 SSL_SESSION *usesess = NULL;
163 const SSL_CIPHER *cipher = NULL;
164
165 if (psksess != NULL) {
166 SSL_SESSION_up_ref(psksess);
167 usesess = psksess;
168 } else {
169 long key_len;
170 unsigned char *key = OPENSSL_hexstr2buf(psk_key, &key_len);
171
172 if (key == NULL) {
173 BIO_printf(bio_err, "Could not convert PSK key '%s' to buffer\n",
174 psk_key);
175 return 0;
176 }
177
178 /* We default to SHA-256 */
179 cipher = SSL_CIPHER_find(s, tls13_aes128gcmsha256_id);
180 if (cipher == NULL) {
181 BIO_printf(bio_err, "Error finding suitable ciphersuite\n");
182 OPENSSL_free(key);
183 return 0;
184 }
185
186 usesess = SSL_SESSION_new();
187 if (usesess == NULL
188 || !SSL_SESSION_set1_master_key(usesess, key, key_len)
189 || !SSL_SESSION_set_cipher(usesess, cipher)
190 || !SSL_SESSION_set_protocol_version(usesess, TLS1_3_VERSION)) {
191 OPENSSL_free(key);
192 goto err;
193 }
194 OPENSSL_free(key);
195 }
196
197 cipher = SSL_SESSION_get0_cipher(usesess);
198 if (cipher == NULL)
199 goto err;
200
201 if (md != NULL && SSL_CIPHER_get_handshake_digest(cipher) != md) {
202 /* PSK not usable, ignore it */
203 *id = NULL;
204 *idlen = 0;
205 *sess = NULL;
206 SSL_SESSION_free(usesess);
207 } else {
208 *sess = usesess;
209 *id = (unsigned char *)psk_identity;
210 *idlen = strlen(psk_identity);
211 }
212
213 return 1;
214
215 err:
216 SSL_SESSION_free(usesess);
217 return 0;
218 }
219
220 /* This is a context that we pass to callbacks */
221 typedef struct tlsextctx_st {
222 BIO *biodebug;
223 int ack;
224 } tlsextctx;
225
226 static int ssl_servername_cb(SSL *s, int *ad, void *arg)
227 {
228 tlsextctx *p = (tlsextctx *) arg;
229 const char *hn = SSL_get_servername(s, TLSEXT_NAMETYPE_host_name);
230 if (SSL_get_servername_type(s) != -1)
231 p->ack = !SSL_session_reused(s) && hn != NULL;
232 else
233 BIO_printf(bio_err, "Can't use SSL_get_servername\n");
234
235 return SSL_TLSEXT_ERR_OK;
236 }
237
238 #ifndef OPENSSL_NO_NEXTPROTONEG
239 /* This the context that we pass to next_proto_cb */
240 typedef struct tlsextnextprotoctx_st {
241 unsigned char *data;
242 size_t len;
243 int status;
244 } tlsextnextprotoctx;
245
246 static tlsextnextprotoctx next_proto;
247
248 static int next_proto_cb(SSL *s, unsigned char **out, unsigned char *outlen,
249 const unsigned char *in, unsigned int inlen,
250 void *arg)
251 {
252 tlsextnextprotoctx *ctx = arg;
253
254 if (!c_quiet) {
255 /* We can assume that |in| is syntactically valid. */
256 unsigned i;
257 BIO_printf(bio_c_out, "Protocols advertised by server: ");
258 for (i = 0; i < inlen;) {
259 if (i)
260 BIO_write(bio_c_out, ", ", 2);
261 BIO_write(bio_c_out, &in[i + 1], in[i]);
262 i += in[i] + 1;
263 }
264 BIO_write(bio_c_out, "\n", 1);
265 }
266
267 ctx->status =
268 SSL_select_next_proto(out, outlen, in, inlen, ctx->data, ctx->len);
269 return SSL_TLSEXT_ERR_OK;
270 }
271 #endif /* ndef OPENSSL_NO_NEXTPROTONEG */
272
273 static int serverinfo_cli_parse_cb(SSL *s, unsigned int ext_type,
274 const unsigned char *in, size_t inlen,
275 int *al, void *arg)
276 {
277 char pem_name[100];
278 unsigned char ext_buf[4 + 65536];
279
280 /* Reconstruct the type/len fields prior to extension data */
281 inlen &= 0xffff; /* for formal memcmpy correctness */
282 ext_buf[0] = (unsigned char)(ext_type >> 8);
283 ext_buf[1] = (unsigned char)(ext_type);
284 ext_buf[2] = (unsigned char)(inlen >> 8);
285 ext_buf[3] = (unsigned char)(inlen);
286 memcpy(ext_buf + 4, in, inlen);
287
288 BIO_snprintf(pem_name, sizeof(pem_name), "SERVERINFO FOR EXTENSION %d",
289 ext_type);
290 PEM_write_bio(bio_c_out, pem_name, "", ext_buf, 4 + inlen);
291 return 1;
292 }
293
294 /*
295 * Hex decoder that tolerates optional whitespace. Returns number of bytes
296 * produced, advances inptr to end of input string.
297 */
298 static ossl_ssize_t hexdecode(const char **inptr, void *result)
299 {
300 unsigned char **out = (unsigned char **)result;
301 const char *in = *inptr;
302 unsigned char *ret = app_malloc(strlen(in) / 2, "hexdecode");
303 unsigned char *cp = ret;
304 uint8_t byte;
305 int nibble = 0;
306
307 if (ret == NULL)
308 return -1;
309
310 for (byte = 0; *in; ++in) {
311 int x;
312
313 if (isspace(_UC(*in)))
314 continue;
315 x = OPENSSL_hexchar2int(*in);
316 if (x < 0) {
317 OPENSSL_free(ret);
318 return 0;
319 }
320 byte |= (char)x;
321 if ((nibble ^= 1) == 0) {
322 *cp++ = byte;
323 byte = 0;
324 } else {
325 byte <<= 4;
326 }
327 }
328 if (nibble != 0) {
329 OPENSSL_free(ret);
330 return 0;
331 }
332 *inptr = in;
333
334 return cp - (*out = ret);
335 }
336
337 /*
338 * Decode unsigned 0..255, returns 1 on success, <= 0 on failure. Advances
339 * inptr to next field skipping leading whitespace.
340 */
341 static ossl_ssize_t checked_uint8(const char **inptr, void *out)
342 {
343 uint8_t *result = (uint8_t *)out;
344 const char *in = *inptr;
345 char *endp;
346 long v;
347 int e;
348
349 save_errno();
350 v = strtol(in, &endp, 10);
351 e = restore_errno();
352
353 if (((v == LONG_MIN || v == LONG_MAX) && e == ERANGE) ||
354 endp == in || !isspace(_UC(*endp)) ||
355 v != (*result = (uint8_t) v)) {
356 return -1;
357 }
358 for (in = endp; isspace(_UC(*in)); ++in)
359 continue;
360
361 *inptr = in;
362 return 1;
363 }
364
365 struct tlsa_field {
366 void *var;
367 const char *name;
368 ossl_ssize_t (*parser)(const char **, void *);
369 };
370
371 static int tlsa_import_rr(SSL *con, const char *rrdata)
372 {
373 /* Not necessary to re-init these values; the "parsers" do that. */
374 static uint8_t usage;
375 static uint8_t selector;
376 static uint8_t mtype;
377 static unsigned char *data;
378 static struct tlsa_field tlsa_fields[] = {
379 { &usage, "usage", checked_uint8 },
380 { &selector, "selector", checked_uint8 },
381 { &mtype, "mtype", checked_uint8 },
382 { &data, "data", hexdecode },
383 { NULL, }
384 };
385 struct tlsa_field *f;
386 int ret;
387 const char *cp = rrdata;
388 ossl_ssize_t len = 0;
389
390 for (f = tlsa_fields; f->var; ++f) {
391 /* Returns number of bytes produced, advances cp to next field */
392 if ((len = f->parser(&cp, f->var)) <= 0) {
393 BIO_printf(bio_err, "%s: warning: bad TLSA %s field in: %s\n",
394 prog, f->name, rrdata);
395 return 0;
396 }
397 }
398 /* The data field is last, so len is its length */
399 ret = SSL_dane_tlsa_add(con, usage, selector, mtype, data, len);
400 OPENSSL_free(data);
401
402 if (ret == 0) {
403 ERR_print_errors(bio_err);
404 BIO_printf(bio_err, "%s: warning: unusable TLSA rrdata: %s\n",
405 prog, rrdata);
406 return 0;
407 }
408 if (ret < 0) {
409 ERR_print_errors(bio_err);
410 BIO_printf(bio_err, "%s: warning: error loading TLSA rrdata: %s\n",
411 prog, rrdata);
412 return 0;
413 }
414 return ret;
415 }
416
417 static int tlsa_import_rrset(SSL *con, STACK_OF(OPENSSL_STRING) *rrset)
418 {
419 int num = sk_OPENSSL_STRING_num(rrset);
420 int count = 0;
421 int i;
422
423 for (i = 0; i < num; ++i) {
424 char *rrdata = sk_OPENSSL_STRING_value(rrset, i);
425 if (tlsa_import_rr(con, rrdata) > 0)
426 ++count;
427 }
428 return count > 0;
429 }
430
431 typedef enum OPTION_choice {
432 OPT_COMMON,
433 OPT_4, OPT_6, OPT_HOST, OPT_PORT, OPT_CONNECT, OPT_BIND, OPT_UNIX,
434 OPT_XMPPHOST, OPT_VERIFY, OPT_NAMEOPT,
435 OPT_CERT, OPT_CRL, OPT_CRL_DOWNLOAD, OPT_SESS_OUT, OPT_SESS_IN,
436 OPT_CERTFORM, OPT_CRLFORM, OPT_VERIFY_RET_ERROR, OPT_VERIFY_QUIET,
437 OPT_BRIEF, OPT_PREXIT, OPT_CRLF, OPT_QUIET, OPT_NBIO,
438 OPT_SSL_CLIENT_ENGINE, OPT_IGN_EOF, OPT_NO_IGN_EOF,
439 OPT_DEBUG, OPT_TLSEXTDEBUG, OPT_STATUS, OPT_WDEBUG,
440 OPT_MSG, OPT_MSGFILE, OPT_ENGINE, OPT_TRACE, OPT_SECURITY_DEBUG,
441 OPT_SECURITY_DEBUG_VERBOSE, OPT_SHOWCERTS, OPT_NBIO_TEST, OPT_STATE,
442 OPT_PSK_IDENTITY, OPT_PSK, OPT_PSK_SESS,
443 #ifndef OPENSSL_NO_SRP
444 OPT_SRPUSER, OPT_SRPPASS, OPT_SRP_STRENGTH, OPT_SRP_LATEUSER,
445 OPT_SRP_MOREGROUPS,
446 #endif
447 OPT_SSL3, OPT_SSL_CONFIG,
448 OPT_TLS1_3, OPT_TLS1_2, OPT_TLS1_1, OPT_TLS1, OPT_DTLS, OPT_DTLS1,
449 OPT_DTLS1_2, OPT_SCTP, OPT_TIMEOUT, OPT_MTU, OPT_KEYFORM, OPT_PASS,
450 OPT_CERT_CHAIN, OPT_KEY, OPT_RECONNECT, OPT_BUILD_CHAIN,
451 OPT_NEXTPROTONEG, OPT_ALPN,
452 OPT_CAPATH, OPT_NOCAPATH, OPT_CHAINCAPATH, OPT_VERIFYCAPATH,
453 OPT_CAFILE, OPT_NOCAFILE, OPT_CHAINCAFILE, OPT_VERIFYCAFILE,
454 OPT_CASTORE, OPT_NOCASTORE, OPT_CHAINCASTORE, OPT_VERIFYCASTORE,
455 OPT_SERVERINFO, OPT_STARTTLS, OPT_SERVERNAME, OPT_NOSERVERNAME, OPT_ASYNC,
456 OPT_USE_SRTP, OPT_KEYMATEXPORT, OPT_KEYMATEXPORTLEN, OPT_PROTOHOST,
457 OPT_MAXFRAGLEN, OPT_MAX_SEND_FRAG, OPT_SPLIT_SEND_FRAG, OPT_MAX_PIPELINES,
458 OPT_READ_BUF, OPT_KEYLOG_FILE, OPT_EARLY_DATA, OPT_REQCAFILE,
459 OPT_V_ENUM,
460 OPT_X_ENUM,
461 OPT_S_ENUM, OPT_IGNORE_UNEXPECTED_EOF,
462 OPT_FALLBACKSCSV, OPT_NOCMDS, OPT_PROXY, OPT_PROXY_USER, OPT_PROXY_PASS,
463 OPT_DANE_TLSA_DOMAIN,
464 #ifndef OPENSSL_NO_CT
465 OPT_CT, OPT_NOCT, OPT_CTLOG_FILE,
466 #endif
467 OPT_DANE_TLSA_RRDATA, OPT_DANE_EE_NO_NAME,
468 OPT_ENABLE_PHA,
469 OPT_SCTP_LABEL_BUG,
470 OPT_R_ENUM, OPT_PROV_ENUM
471 } OPTION_CHOICE;
472
473 const OPTIONS s_client_options[] = {
474 {OPT_HELP_STR, 1, '-', "Usage: %s [options] [host:port]\n"},
475
476 OPT_SECTION("General"),
477 {"help", OPT_HELP, '-', "Display this summary"},
478 #ifndef OPENSSL_NO_ENGINE
479 {"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"},
480 {"ssl_client_engine", OPT_SSL_CLIENT_ENGINE, 's',
481 "Specify engine to be used for client certificate operations"},
482 #endif
483 {"ssl_config", OPT_SSL_CONFIG, 's', "Use specified section for SSL_CTX configuration"},
484 #ifndef OPENSSL_NO_CT
485 {"ct", OPT_CT, '-', "Request and parse SCTs (also enables OCSP stapling)"},
486 {"noct", OPT_NOCT, '-', "Do not request or parse SCTs (default)"},
487 {"ctlogfile", OPT_CTLOG_FILE, '<', "CT log list CONF file"},
488 #endif
489
490 OPT_SECTION("Network"),
491 {"host", OPT_HOST, 's', "Use -connect instead"},
492 {"port", OPT_PORT, 'p', "Use -connect instead"},
493 {"connect", OPT_CONNECT, 's',
494 "TCP/IP where to connect; default: " PORT ")"},
495 {"bind", OPT_BIND, 's', "bind local address for connection"},
496 {"proxy", OPT_PROXY, 's',
497 "Connect to via specified proxy to the real server"},
498 {"proxy_user", OPT_PROXY_USER, 's', "UserID for proxy authentication"},
499 {"proxy_pass", OPT_PROXY_PASS, 's', "Proxy authentication password source"},
500 #ifdef AF_UNIX
501 {"unix", OPT_UNIX, 's', "Connect over the specified Unix-domain socket"},
502 #endif
503 {"4", OPT_4, '-', "Use IPv4 only"},
504 #ifdef AF_INET6
505 {"6", OPT_6, '-', "Use IPv6 only"},
506 #endif
507 {"maxfraglen", OPT_MAXFRAGLEN, 'p',
508 "Enable Maximum Fragment Length Negotiation (len values: 512, 1024, 2048 and 4096)"},
509 {"max_send_frag", OPT_MAX_SEND_FRAG, 'p', "Maximum Size of send frames "},
510 {"split_send_frag", OPT_SPLIT_SEND_FRAG, 'p',
511 "Size used to split data for encrypt pipelines"},
512 {"max_pipelines", OPT_MAX_PIPELINES, 'p',
513 "Maximum number of encrypt/decrypt pipelines to be used"},
514 {"read_buf", OPT_READ_BUF, 'p',
515 "Default read buffer size to be used for connections"},
516 {"fallback_scsv", OPT_FALLBACKSCSV, '-', "Send the fallback SCSV"},
517
518 OPT_SECTION("Identity"),
519 {"cert", OPT_CERT, '<', "Client certificate file to use"},
520 {"certform", OPT_CERTFORM, 'F',
521 "Client certificate file format (PEM/DER/P12); has no effect"},
522 {"cert_chain", OPT_CERT_CHAIN, '<',
523 "Client certificate chain file (in PEM format)"},
524 {"build_chain", OPT_BUILD_CHAIN, '-', "Build client certificate chain"},
525 {"key", OPT_KEY, 's', "Private key file to use; default: -cert file"},
526 {"keyform", OPT_KEYFORM, 'E', "Key format (ENGINE, other values ignored)"},
527 {"pass", OPT_PASS, 's', "Private key and cert file pass phrase source"},
528 {"verify", OPT_VERIFY, 'p', "Turn on peer certificate verification"},
529 {"nameopt", OPT_NAMEOPT, 's', "Certificate subject/issuer name printing options"},
530 {"CApath", OPT_CAPATH, '/', "PEM format directory of CA's"},
531 {"CAfile", OPT_CAFILE, '<', "PEM format file of CA's"},
532 {"CAstore", OPT_CASTORE, ':', "URI to store of CA's"},
533 {"no-CAfile", OPT_NOCAFILE, '-',
534 "Do not load the default certificates file"},
535 {"no-CApath", OPT_NOCAPATH, '-',
536 "Do not load certificates from the default certificates directory"},
537 {"no-CAstore", OPT_NOCASTORE, '-',
538 "Do not load certificates from the default certificates store"},
539 {"requestCAfile", OPT_REQCAFILE, '<',
540 "PEM format file of CA names to send to the server"},
541 {"dane_tlsa_domain", OPT_DANE_TLSA_DOMAIN, 's', "DANE TLSA base domain"},
542 {"dane_tlsa_rrdata", OPT_DANE_TLSA_RRDATA, 's',
543 "DANE TLSA rrdata presentation form"},
544 {"dane_ee_no_namechecks", OPT_DANE_EE_NO_NAME, '-',
545 "Disable name checks when matching DANE-EE(3) TLSA records"},
546 {"psk_identity", OPT_PSK_IDENTITY, 's', "PSK identity"},
547 {"psk", OPT_PSK, 's', "PSK in hex (without 0x)"},
548 {"psk_session", OPT_PSK_SESS, '<', "File to read PSK SSL session from"},
549 {"name", OPT_PROTOHOST, 's',
550 "Hostname to use for \"-starttls lmtp\", \"-starttls smtp\" or \"-starttls xmpp[-server]\""},
551
552 OPT_SECTION("Session"),
553 {"reconnect", OPT_RECONNECT, '-',
554 "Drop and re-make the connection with the same Session-ID"},
555 {"sess_out", OPT_SESS_OUT, '>', "File to write SSL session to"},
556 {"sess_in", OPT_SESS_IN, '<', "File to read SSL session from"},
557
558 OPT_SECTION("Input/Output"),
559 {"crlf", OPT_CRLF, '-', "Convert LF from terminal into CRLF"},
560 {"quiet", OPT_QUIET, '-', "No s_client output"},
561 {"ign_eof", OPT_IGN_EOF, '-', "Ignore input eof (default when -quiet)"},
562 {"no_ign_eof", OPT_NO_IGN_EOF, '-', "Don't ignore input eof"},
563 {"starttls", OPT_STARTTLS, 's',
564 "Use the appropriate STARTTLS command before starting TLS"},
565 {"xmpphost", OPT_XMPPHOST, 's',
566 "Alias of -name option for \"-starttls xmpp[-server]\""},
567 {"brief", OPT_BRIEF, '-',
568 "Restrict output to brief summary of connection parameters"},
569 {"prexit", OPT_PREXIT, '-',
570 "Print session information when the program exits"},
571
572 OPT_SECTION("Debug"),
573 {"showcerts", OPT_SHOWCERTS, '-',
574 "Show all certificates sent by the server"},
575 {"debug", OPT_DEBUG, '-', "Extra output"},
576 {"msg", OPT_MSG, '-', "Show protocol messages"},
577 {"msgfile", OPT_MSGFILE, '>',
578 "File to send output of -msg or -trace, instead of stdout"},
579 {"nbio_test", OPT_NBIO_TEST, '-', "More ssl protocol testing"},
580 {"state", OPT_STATE, '-', "Print the ssl states"},
581 {"keymatexport", OPT_KEYMATEXPORT, 's',
582 "Export keying material using label"},
583 {"keymatexportlen", OPT_KEYMATEXPORTLEN, 'p',
584 "Export len bytes of keying material; default 20"},
585 {"security_debug", OPT_SECURITY_DEBUG, '-',
586 "Enable security debug messages"},
587 {"security_debug_verbose", OPT_SECURITY_DEBUG_VERBOSE, '-',
588 "Output more security debug output"},
589 #ifndef OPENSSL_NO_SSL_TRACE
590 {"trace", OPT_TRACE, '-', "Show trace output of protocol messages"},
591 #endif
592 #ifdef WATT32
593 {"wdebug", OPT_WDEBUG, '-', "WATT-32 tcp debugging"},
594 #endif
595 {"keylogfile", OPT_KEYLOG_FILE, '>', "Write TLS secrets to file"},
596 {"nocommands", OPT_NOCMDS, '-', "Do not use interactive command letters"},
597 {"servername", OPT_SERVERNAME, 's',
598 "Set TLS extension servername (SNI) in ClientHello (default)"},
599 {"noservername", OPT_NOSERVERNAME, '-',
600 "Do not send the server name (SNI) extension in the ClientHello"},
601 {"tlsextdebug", OPT_TLSEXTDEBUG, '-',
602 "Hex dump of all TLS extensions received"},
603 {"ignore_unexpected_eof", OPT_IGNORE_UNEXPECTED_EOF, '-',
604 "Do not treat lack of close_notify from a peer as an error"},
605 #ifndef OPENSSL_NO_OCSP
606 {"status", OPT_STATUS, '-', "Request certificate status from server"},
607 #endif
608 {"serverinfo", OPT_SERVERINFO, 's',
609 "types Send empty ClientHello extensions (comma-separated numbers)"},
610 {"alpn", OPT_ALPN, 's',
611 "Enable ALPN extension, considering named protocols supported (comma-separated list)"},
612 {"async", OPT_ASYNC, '-', "Support asynchronous operation"},
613 {"nbio", OPT_NBIO, '-', "Use non-blocking IO"},
614
615 OPT_SECTION("Protocol and version"),
616 #ifndef OPENSSL_NO_SSL3
617 {"ssl3", OPT_SSL3, '-', "Just use SSLv3"},
618 #endif
619 #ifndef OPENSSL_NO_TLS1
620 {"tls1", OPT_TLS1, '-', "Just use TLSv1"},
621 #endif
622 #ifndef OPENSSL_NO_TLS1_1
623 {"tls1_1", OPT_TLS1_1, '-', "Just use TLSv1.1"},
624 #endif
625 #ifndef OPENSSL_NO_TLS1_2
626 {"tls1_2", OPT_TLS1_2, '-', "Just use TLSv1.2"},
627 #endif
628 #ifndef OPENSSL_NO_TLS1_3
629 {"tls1_3", OPT_TLS1_3, '-', "Just use TLSv1.3"},
630 #endif
631 #ifndef OPENSSL_NO_DTLS
632 {"dtls", OPT_DTLS, '-', "Use any version of DTLS"},
633 {"timeout", OPT_TIMEOUT, '-',
634 "Enable send/receive timeout on DTLS connections"},
635 {"mtu", OPT_MTU, 'p', "Set the link layer MTU"},
636 #endif
637 #ifndef OPENSSL_NO_DTLS1
638 {"dtls1", OPT_DTLS1, '-', "Just use DTLSv1"},
639 #endif
640 #ifndef OPENSSL_NO_DTLS1_2
641 {"dtls1_2", OPT_DTLS1_2, '-', "Just use DTLSv1.2"},
642 #endif
643 #ifndef OPENSSL_NO_SCTP
644 {"sctp", OPT_SCTP, '-', "Use SCTP"},
645 {"sctp_label_bug", OPT_SCTP_LABEL_BUG, '-', "Enable SCTP label length bug"},
646 #endif
647 #ifndef OPENSSL_NO_NEXTPROTONEG
648 {"nextprotoneg", OPT_NEXTPROTONEG, 's',
649 "Enable NPN extension, considering named protocols supported (comma-separated list)"},
650 #endif
651 {"early_data", OPT_EARLY_DATA, '<', "File to send as early data"},
652 {"enable_pha", OPT_ENABLE_PHA, '-', "Enable post-handshake-authentication"},
653 #ifndef OPENSSL_NO_SRTP
654 {"use_srtp", OPT_USE_SRTP, 's',
655 "Offer SRTP key management with a colon-separated profile list"},
656 #endif
657 #ifndef OPENSSL_NO_SRP
658 {"srpuser", OPT_SRPUSER, 's', "(deprecated) SRP authentication for 'user'"},
659 {"srppass", OPT_SRPPASS, 's', "(deprecated) Password for 'user'"},
660 {"srp_lateuser", OPT_SRP_LATEUSER, '-',
661 "(deprecated) SRP username into second ClientHello message"},
662 {"srp_moregroups", OPT_SRP_MOREGROUPS, '-',
663 "(deprecated) Tolerate other than the known g N values."},
664 {"srp_strength", OPT_SRP_STRENGTH, 'p',
665 "(deprecated) Minimal length in bits for N"},
666 #endif
667
668 OPT_R_OPTIONS,
669 OPT_S_OPTIONS,
670 OPT_V_OPTIONS,
671 {"CRL", OPT_CRL, '<', "CRL file to use"},
672 {"crl_download", OPT_CRL_DOWNLOAD, '-', "Download CRL from distribution points"},
673 {"CRLform", OPT_CRLFORM, 'F', "CRL format (PEM or DER); default PEM"},
674 {"verify_return_error", OPT_VERIFY_RET_ERROR, '-',
675 "Close connection on verification error"},
676 {"verify_quiet", OPT_VERIFY_QUIET, '-', "Restrict verify output to errors"},
677 {"chainCAfile", OPT_CHAINCAFILE, '<',
678 "CA file for certificate chain (PEM format)"},
679 {"chainCApath", OPT_CHAINCAPATH, '/',
680 "Use dir as certificate store path to build CA certificate chain"},
681 {"chainCAstore", OPT_CHAINCASTORE, ':',
682 "CA store URI for certificate chain"},
683 {"verifyCAfile", OPT_VERIFYCAFILE, '<',
684 "CA file for certificate verification (PEM format)"},
685 {"verifyCApath", OPT_VERIFYCAPATH, '/',
686 "Use dir as certificate store path to verify CA certificate"},
687 {"verifyCAstore", OPT_VERIFYCASTORE, ':',
688 "CA store URI for certificate verification"},
689 OPT_X_OPTIONS,
690 OPT_PROV_OPTIONS,
691
692 OPT_PARAMETERS(),
693 {"host:port", 0, 0, "Where to connect; same as -connect option"},
694 {NULL}
695 };
696
697 typedef enum PROTOCOL_choice {
698 PROTO_OFF,
699 PROTO_SMTP,
700 PROTO_POP3,
701 PROTO_IMAP,
702 PROTO_FTP,
703 PROTO_TELNET,
704 PROTO_XMPP,
705 PROTO_XMPP_SERVER,
706 PROTO_CONNECT,
707 PROTO_IRC,
708 PROTO_MYSQL,
709 PROTO_POSTGRES,
710 PROTO_LMTP,
711 PROTO_NNTP,
712 PROTO_SIEVE,
713 PROTO_LDAP
714 } PROTOCOL_CHOICE;
715
716 static const OPT_PAIR services[] = {
717 {"smtp", PROTO_SMTP},
718 {"pop3", PROTO_POP3},
719 {"imap", PROTO_IMAP},
720 {"ftp", PROTO_FTP},
721 {"xmpp", PROTO_XMPP},
722 {"xmpp-server", PROTO_XMPP_SERVER},
723 {"telnet", PROTO_TELNET},
724 {"irc", PROTO_IRC},
725 {"mysql", PROTO_MYSQL},
726 {"postgres", PROTO_POSTGRES},
727 {"lmtp", PROTO_LMTP},
728 {"nntp", PROTO_NNTP},
729 {"sieve", PROTO_SIEVE},
730 {"ldap", PROTO_LDAP},
731 {NULL, 0}
732 };
733
734 #define IS_INET_FLAG(o) \
735 (o == OPT_4 || o == OPT_6 || o == OPT_HOST || o == OPT_PORT || o == OPT_CONNECT)
736 #define IS_UNIX_FLAG(o) (o == OPT_UNIX)
737
738 #define IS_PROT_FLAG(o) \
739 (o == OPT_SSL3 || o == OPT_TLS1 || o == OPT_TLS1_1 || o == OPT_TLS1_2 \
740 || o == OPT_TLS1_3 || o == OPT_DTLS || o == OPT_DTLS1 || o == OPT_DTLS1_2)
741
742 /* Free |*dest| and optionally set it to a copy of |source|. */
743 static void freeandcopy(char **dest, const char *source)
744 {
745 OPENSSL_free(*dest);
746 *dest = NULL;
747 if (source != NULL)
748 *dest = OPENSSL_strdup(source);
749 }
750
751 static int new_session_cb(SSL *s, SSL_SESSION *sess)
752 {
753
754 if (sess_out != NULL) {
755 BIO *stmp = BIO_new_file(sess_out, "w");
756
757 if (stmp == NULL) {
758 BIO_printf(bio_err, "Error writing session file %s\n", sess_out);
759 } else {
760 PEM_write_bio_SSL_SESSION(stmp, sess);
761 BIO_free(stmp);
762 }
763 }
764
765 /*
766 * Session data gets dumped on connection for TLSv1.2 and below, and on
767 * arrival of the NewSessionTicket for TLSv1.3.
768 */
769 if (SSL_version(s) == TLS1_3_VERSION) {
770 BIO_printf(bio_c_out,
771 "---\nPost-Handshake New Session Ticket arrived:\n");
772 SSL_SESSION_print(bio_c_out, sess);
773 BIO_printf(bio_c_out, "---\n");
774 }
775
776 /*
777 * We always return a "fail" response so that the session gets freed again
778 * because we haven't used the reference.
779 */
780 return 0;
781 }
782
783 int s_client_main(int argc, char **argv)
784 {
785 BIO *sbio;
786 EVP_PKEY *key = NULL;
787 SSL *con = NULL;
788 SSL_CTX *ctx = NULL;
789 STACK_OF(X509) *chain = NULL;
790 X509 *cert = NULL;
791 X509_VERIFY_PARAM *vpm = NULL;
792 SSL_EXCERT *exc = NULL;
793 SSL_CONF_CTX *cctx = NULL;
794 STACK_OF(OPENSSL_STRING) *ssl_args = NULL;
795 char *dane_tlsa_domain = NULL;
796 STACK_OF(OPENSSL_STRING) *dane_tlsa_rrset = NULL;
797 int dane_ee_no_name = 0;
798 STACK_OF(X509_CRL) *crls = NULL;
799 const SSL_METHOD *meth = TLS_client_method();
800 const char *CApath = NULL, *CAfile = NULL, *CAstore = NULL;
801 char *cbuf = NULL, *sbuf = NULL, *mbuf = NULL;
802 char *proxystr = NULL, *proxyuser = NULL;
803 char *proxypassarg = NULL, *proxypass = NULL;
804 char *connectstr = NULL, *bindstr = NULL;
805 char *cert_file = NULL, *key_file = NULL, *chain_file = NULL;
806 char *chCApath = NULL, *chCAfile = NULL, *chCAstore = NULL, *host = NULL;
807 char *thost = NULL, *tport = NULL;
808 char *port = OPENSSL_strdup(PORT);
809 char *bindhost = NULL, *bindport = NULL;
810 char *passarg = NULL, *pass = NULL;
811 char *vfyCApath = NULL, *vfyCAfile = NULL, *vfyCAstore = NULL;
812 char *ReqCAfile = NULL;
813 char *sess_in = NULL, *crl_file = NULL, *p;
814 const char *protohost = NULL;
815 struct timeval timeout, *timeoutp;
816 fd_set readfds, writefds;
817 int noCApath = 0, noCAfile = 0, noCAstore = 0;
818 int build_chain = 0, cbuf_len, cbuf_off, cert_format = FORMAT_UNDEF;
819 int key_format = FORMAT_UNDEF, crlf = 0, full_log = 1, mbuf_len = 0;
820 int prexit = 0;
821 int sdebug = 0;
822 int reconnect = 0, verify = SSL_VERIFY_NONE, vpmtouched = 0;
823 int ret = 1, in_init = 1, i, nbio_test = 0, sock = -1, k, width, state = 0;
824 int sbuf_len, sbuf_off, cmdletters = 1;
825 int socket_family = AF_UNSPEC, socket_type = SOCK_STREAM, protocol = 0;
826 int starttls_proto = PROTO_OFF, crl_format = FORMAT_UNDEF, crl_download = 0;
827 int write_tty, read_tty, write_ssl, read_ssl, tty_on, ssl_pending;
828 #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS)
829 int at_eof = 0;
830 #endif
831 int read_buf_len = 0;
832 int fallback_scsv = 0;
833 OPTION_CHOICE o;
834 #ifndef OPENSSL_NO_DTLS
835 int enable_timeouts = 0;
836 long socket_mtu = 0;
837 #endif
838 #ifndef OPENSSL_NO_ENGINE
839 ENGINE *ssl_client_engine = NULL;
840 #endif
841 ENGINE *e = NULL;
842 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
843 struct timeval tv;
844 #endif
845 const char *servername = NULL;
846 int noservername = 0;
847 const char *alpn_in = NULL;
848 tlsextctx tlsextcbp = { NULL, 0 };
849 const char *ssl_config = NULL;
850 #define MAX_SI_TYPES 100
851 unsigned short serverinfo_types[MAX_SI_TYPES];
852 int serverinfo_count = 0, start = 0, len;
853 #ifndef OPENSSL_NO_NEXTPROTONEG
854 const char *next_proto_neg_in = NULL;
855 #endif
856 #ifndef OPENSSL_NO_SRP
857 char *srppass = NULL;
858 int srp_lateuser = 0;
859 SRP_ARG srp_arg = { NULL, NULL, 0, 0, 0, 1024 };
860 #endif
861 #ifndef OPENSSL_NO_SRTP
862 char *srtp_profiles = NULL;
863 #endif
864 #ifndef OPENSSL_NO_CT
865 char *ctlog_file = NULL;
866 int ct_validation = 0;
867 #endif
868 int min_version = 0, max_version = 0, prot_opt = 0, no_prot_opt = 0;
869 int async = 0;
870 unsigned int max_send_fragment = 0;
871 unsigned int split_send_fragment = 0, max_pipelines = 0;
872 enum { use_inet, use_unix, use_unknown } connect_type = use_unknown;
873 int count4or6 = 0;
874 uint8_t maxfraglen = 0;
875 int c_nbio = 0, c_msg = 0, c_ign_eof = 0, c_brief = 0;
876 int c_tlsextdebug = 0;
877 #ifndef OPENSSL_NO_OCSP
878 int c_status_req = 0;
879 #endif
880 BIO *bio_c_msg = NULL;
881 const char *keylog_file = NULL, *early_data_file = NULL;
882 #ifndef OPENSSL_NO_DTLS
883 int isdtls = 0;
884 #endif
885 char *psksessf = NULL;
886 int enable_pha = 0;
887 #ifndef OPENSSL_NO_SCTP
888 int sctp_label_bug = 0;
889 #endif
890 int ignore_unexpected_eof = 0;
891
892 FD_ZERO(&readfds);
893 FD_ZERO(&writefds);
894 /* Known false-positive of MemorySanitizer. */
895 #if defined(__has_feature)
896 # if __has_feature(memory_sanitizer)
897 __msan_unpoison(&readfds, sizeof(readfds));
898 __msan_unpoison(&writefds, sizeof(writefds));
899 # endif
900 #endif
901
902 c_quiet = 0;
903 c_debug = 0;
904 c_showcerts = 0;
905 c_nbio = 0;
906 vpm = X509_VERIFY_PARAM_new();
907 cctx = SSL_CONF_CTX_new();
908
909 if (vpm == NULL || cctx == NULL) {
910 BIO_printf(bio_err, "%s: out of memory\n", opt_getprog());
911 goto end;
912 }
913
914 cbuf = app_malloc(BUFSIZZ, "cbuf");
915 sbuf = app_malloc(BUFSIZZ, "sbuf");
916 mbuf = app_malloc(BUFSIZZ, "mbuf");
917
918 SSL_CONF_CTX_set_flags(cctx, SSL_CONF_FLAG_CLIENT | SSL_CONF_FLAG_CMDLINE);
919
920 prog = opt_init(argc, argv, s_client_options);
921 while ((o = opt_next()) != OPT_EOF) {
922 /* Check for intermixing flags. */
923 if (connect_type == use_unix && IS_INET_FLAG(o)) {
924 BIO_printf(bio_err,
925 "%s: Intermixed protocol flags (unix and internet domains)\n",
926 prog);
927 goto end;
928 }
929 if (connect_type == use_inet && IS_UNIX_FLAG(o)) {
930 BIO_printf(bio_err,
931 "%s: Intermixed protocol flags (internet and unix domains)\n",
932 prog);
933 goto end;
934 }
935
936 if (IS_PROT_FLAG(o) && ++prot_opt > 1) {
937 BIO_printf(bio_err, "Cannot supply multiple protocol flags\n");
938 goto end;
939 }
940 if (IS_NO_PROT_FLAG(o))
941 no_prot_opt++;
942 if (prot_opt == 1 && no_prot_opt) {
943 BIO_printf(bio_err,
944 "Cannot supply both a protocol flag and '-no_<prot>'\n");
945 goto end;
946 }
947
948 switch (o) {
949 case OPT_EOF:
950 case OPT_ERR:
951 opthelp:
952 BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
953 goto end;
954 case OPT_HELP:
955 opt_help(s_client_options);
956 ret = 0;
957 goto end;
958 case OPT_4:
959 connect_type = use_inet;
960 socket_family = AF_INET;
961 count4or6++;
962 break;
963 #ifdef AF_INET6
964 case OPT_6:
965 connect_type = use_inet;
966 socket_family = AF_INET6;
967 count4or6++;
968 break;
969 #endif
970 case OPT_HOST:
971 connect_type = use_inet;
972 freeandcopy(&host, opt_arg());
973 break;
974 case OPT_PORT:
975 connect_type = use_inet;
976 freeandcopy(&port, opt_arg());
977 break;
978 case OPT_CONNECT:
979 connect_type = use_inet;
980 freeandcopy(&connectstr, opt_arg());
981 break;
982 case OPT_BIND:
983 freeandcopy(&bindstr, opt_arg());
984 break;
985 case OPT_PROXY:
986 proxystr = opt_arg();
987 starttls_proto = PROTO_CONNECT;
988 break;
989 case OPT_PROXY_USER:
990 proxyuser = opt_arg();
991 break;
992 case OPT_PROXY_PASS:
993 proxypassarg = opt_arg();
994 break;
995 #ifdef AF_UNIX
996 case OPT_UNIX:
997 connect_type = use_unix;
998 socket_family = AF_UNIX;
999 freeandcopy(&host, opt_arg());
1000 break;
1001 #endif
1002 case OPT_XMPPHOST:
1003 /* fall through, since this is an alias */
1004 case OPT_PROTOHOST:
1005 protohost = opt_arg();
1006 break;
1007 case OPT_VERIFY:
1008 verify = SSL_VERIFY_PEER;
1009 verify_args.depth = atoi(opt_arg());
1010 if (!c_quiet)
1011 BIO_printf(bio_err, "verify depth is %d\n", verify_args.depth);
1012 break;
1013 case OPT_CERT:
1014 cert_file = opt_arg();
1015 break;
1016 case OPT_NAMEOPT:
1017 if (!set_nameopt(opt_arg()))
1018 goto end;
1019 break;
1020 case OPT_CRL:
1021 crl_file = opt_arg();
1022 break;
1023 case OPT_CRL_DOWNLOAD:
1024 crl_download = 1;
1025 break;
1026 case OPT_SESS_OUT:
1027 sess_out = opt_arg();
1028 break;
1029 case OPT_SESS_IN:
1030 sess_in = opt_arg();
1031 break;
1032 case OPT_CERTFORM:
1033 if (!opt_format(opt_arg(), OPT_FMT_ANY, &cert_format))
1034 goto opthelp;
1035 break;
1036 case OPT_CRLFORM:
1037 if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &crl_format))
1038 goto opthelp;
1039 break;
1040 case OPT_VERIFY_RET_ERROR:
1041 verify = SSL_VERIFY_PEER;
1042 verify_args.return_error = 1;
1043 break;
1044 case OPT_VERIFY_QUIET:
1045 verify_args.quiet = 1;
1046 break;
1047 case OPT_BRIEF:
1048 c_brief = verify_args.quiet = c_quiet = 1;
1049 break;
1050 case OPT_S_CASES:
1051 if (ssl_args == NULL)
1052 ssl_args = sk_OPENSSL_STRING_new_null();
1053 if (ssl_args == NULL
1054 || !sk_OPENSSL_STRING_push(ssl_args, opt_flag())
1055 || !sk_OPENSSL_STRING_push(ssl_args, opt_arg())) {
1056 BIO_printf(bio_err, "%s: Memory allocation failure\n", prog);
1057 goto end;
1058 }
1059 break;
1060 case OPT_V_CASES:
1061 if (!opt_verify(o, vpm))
1062 goto end;
1063 vpmtouched++;
1064 break;
1065 case OPT_X_CASES:
1066 if (!args_excert(o, &exc))
1067 goto end;
1068 break;
1069 case OPT_IGNORE_UNEXPECTED_EOF:
1070 ignore_unexpected_eof = 1;
1071 break;
1072 case OPT_PREXIT:
1073 prexit = 1;
1074 break;
1075 case OPT_CRLF:
1076 crlf = 1;
1077 break;
1078 case OPT_QUIET:
1079 c_quiet = c_ign_eof = 1;
1080 break;
1081 case OPT_NBIO:
1082 c_nbio = 1;
1083 break;
1084 case OPT_NOCMDS:
1085 cmdletters = 0;
1086 break;
1087 case OPT_ENGINE:
1088 e = setup_engine(opt_arg(), 1);
1089 break;
1090 case OPT_SSL_CLIENT_ENGINE:
1091 #ifndef OPENSSL_NO_ENGINE
1092 ssl_client_engine = setup_engine(opt_arg(), 0);
1093 if (ssl_client_engine == NULL) {
1094 BIO_printf(bio_err, "Error getting client auth engine\n");
1095 goto opthelp;
1096 }
1097 #endif
1098 break;
1099 case OPT_R_CASES:
1100 if (!opt_rand(o))
1101 goto end;
1102 break;
1103 case OPT_PROV_CASES:
1104 if (!opt_provider(o))
1105 goto end;
1106 break;
1107 case OPT_IGN_EOF:
1108 c_ign_eof = 1;
1109 break;
1110 case OPT_NO_IGN_EOF:
1111 c_ign_eof = 0;
1112 break;
1113 case OPT_DEBUG:
1114 c_debug = 1;
1115 break;
1116 case OPT_TLSEXTDEBUG:
1117 c_tlsextdebug = 1;
1118 break;
1119 case OPT_STATUS:
1120 #ifndef OPENSSL_NO_OCSP
1121 c_status_req = 1;
1122 #endif
1123 break;
1124 case OPT_WDEBUG:
1125 #ifdef WATT32
1126 dbug_init();
1127 #endif
1128 break;
1129 case OPT_MSG:
1130 c_msg = 1;
1131 break;
1132 case OPT_MSGFILE:
1133 bio_c_msg = BIO_new_file(opt_arg(), "w");
1134 break;
1135 case OPT_TRACE:
1136 #ifndef OPENSSL_NO_SSL_TRACE
1137 c_msg = 2;
1138 #endif
1139 break;
1140 case OPT_SECURITY_DEBUG:
1141 sdebug = 1;
1142 break;
1143 case OPT_SECURITY_DEBUG_VERBOSE:
1144 sdebug = 2;
1145 break;
1146 case OPT_SHOWCERTS:
1147 c_showcerts = 1;
1148 break;
1149 case OPT_NBIO_TEST:
1150 nbio_test = 1;
1151 break;
1152 case OPT_STATE:
1153 state = 1;
1154 break;
1155 case OPT_PSK_IDENTITY:
1156 psk_identity = opt_arg();
1157 break;
1158 case OPT_PSK:
1159 for (p = psk_key = opt_arg(); *p; p++) {
1160 if (isxdigit(_UC(*p)))
1161 continue;
1162 BIO_printf(bio_err, "Not a hex number '%s'\n", psk_key);
1163 goto end;
1164 }
1165 break;
1166 case OPT_PSK_SESS:
1167 psksessf = opt_arg();
1168 break;
1169 #ifndef OPENSSL_NO_SRP
1170 case OPT_SRPUSER:
1171 srp_arg.srplogin = opt_arg();
1172 if (min_version < TLS1_VERSION)
1173 min_version = TLS1_VERSION;
1174 break;
1175 case OPT_SRPPASS:
1176 srppass = opt_arg();
1177 if (min_version < TLS1_VERSION)
1178 min_version = TLS1_VERSION;
1179 break;
1180 case OPT_SRP_STRENGTH:
1181 srp_arg.strength = atoi(opt_arg());
1182 BIO_printf(bio_err, "SRP minimal length for N is %d\n",
1183 srp_arg.strength);
1184 if (min_version < TLS1_VERSION)
1185 min_version = TLS1_VERSION;
1186 break;
1187 case OPT_SRP_LATEUSER:
1188 srp_lateuser = 1;
1189 if (min_version < TLS1_VERSION)
1190 min_version = TLS1_VERSION;
1191 break;
1192 case OPT_SRP_MOREGROUPS:
1193 srp_arg.amp = 1;
1194 if (min_version < TLS1_VERSION)
1195 min_version = TLS1_VERSION;
1196 break;
1197 #endif
1198 case OPT_SSL_CONFIG:
1199 ssl_config = opt_arg();
1200 break;
1201 case OPT_SSL3:
1202 min_version = SSL3_VERSION;
1203 max_version = SSL3_VERSION;
1204 socket_type = SOCK_STREAM;
1205 #ifndef OPENSSL_NO_DTLS
1206 isdtls = 0;
1207 #endif
1208 break;
1209 case OPT_TLS1_3:
1210 min_version = TLS1_3_VERSION;
1211 max_version = TLS1_3_VERSION;
1212 socket_type = SOCK_STREAM;
1213 #ifndef OPENSSL_NO_DTLS
1214 isdtls = 0;
1215 #endif
1216 break;
1217 case OPT_TLS1_2:
1218 min_version = TLS1_2_VERSION;
1219 max_version = TLS1_2_VERSION;
1220 socket_type = SOCK_STREAM;
1221 #ifndef OPENSSL_NO_DTLS
1222 isdtls = 0;
1223 #endif
1224 break;
1225 case OPT_TLS1_1:
1226 min_version = TLS1_1_VERSION;
1227 max_version = TLS1_1_VERSION;
1228 socket_type = SOCK_STREAM;
1229 #ifndef OPENSSL_NO_DTLS
1230 isdtls = 0;
1231 #endif
1232 break;
1233 case OPT_TLS1:
1234 min_version = TLS1_VERSION;
1235 max_version = TLS1_VERSION;
1236 socket_type = SOCK_STREAM;
1237 #ifndef OPENSSL_NO_DTLS
1238 isdtls = 0;
1239 #endif
1240 break;
1241 case OPT_DTLS:
1242 #ifndef OPENSSL_NO_DTLS
1243 meth = DTLS_client_method();
1244 socket_type = SOCK_DGRAM;
1245 isdtls = 1;
1246 #endif
1247 break;
1248 case OPT_DTLS1:
1249 #ifndef OPENSSL_NO_DTLS1
1250 meth = DTLS_client_method();
1251 min_version = DTLS1_VERSION;
1252 max_version = DTLS1_VERSION;
1253 socket_type = SOCK_DGRAM;
1254 isdtls = 1;
1255 #endif
1256 break;
1257 case OPT_DTLS1_2:
1258 #ifndef OPENSSL_NO_DTLS1_2
1259 meth = DTLS_client_method();
1260 min_version = DTLS1_2_VERSION;
1261 max_version = DTLS1_2_VERSION;
1262 socket_type = SOCK_DGRAM;
1263 isdtls = 1;
1264 #endif
1265 break;
1266 case OPT_SCTP:
1267 #ifndef OPENSSL_NO_SCTP
1268 protocol = IPPROTO_SCTP;
1269 #endif
1270 break;
1271 case OPT_SCTP_LABEL_BUG:
1272 #ifndef OPENSSL_NO_SCTP
1273 sctp_label_bug = 1;
1274 #endif
1275 break;
1276 case OPT_TIMEOUT:
1277 #ifndef OPENSSL_NO_DTLS
1278 enable_timeouts = 1;
1279 #endif
1280 break;
1281 case OPT_MTU:
1282 #ifndef OPENSSL_NO_DTLS
1283 socket_mtu = atol(opt_arg());
1284 #endif
1285 break;
1286 case OPT_FALLBACKSCSV:
1287 fallback_scsv = 1;
1288 break;
1289 case OPT_KEYFORM:
1290 if (!opt_format(opt_arg(), OPT_FMT_ANY, &key_format))
1291 goto opthelp;
1292 break;
1293 case OPT_PASS:
1294 passarg = opt_arg();
1295 break;
1296 case OPT_CERT_CHAIN:
1297 chain_file = opt_arg();
1298 break;
1299 case OPT_KEY:
1300 key_file = opt_arg();
1301 break;
1302 case OPT_RECONNECT:
1303 reconnect = 5;
1304 break;
1305 case OPT_CAPATH:
1306 CApath = opt_arg();
1307 break;
1308 case OPT_NOCAPATH:
1309 noCApath = 1;
1310 break;
1311 case OPT_CHAINCAPATH:
1312 chCApath = opt_arg();
1313 break;
1314 case OPT_VERIFYCAPATH:
1315 vfyCApath = opt_arg();
1316 break;
1317 case OPT_BUILD_CHAIN:
1318 build_chain = 1;
1319 break;
1320 case OPT_REQCAFILE:
1321 ReqCAfile = opt_arg();
1322 break;
1323 case OPT_CAFILE:
1324 CAfile = opt_arg();
1325 break;
1326 case OPT_NOCAFILE:
1327 noCAfile = 1;
1328 break;
1329 #ifndef OPENSSL_NO_CT
1330 case OPT_NOCT:
1331 ct_validation = 0;
1332 break;
1333 case OPT_CT:
1334 ct_validation = 1;
1335 break;
1336 case OPT_CTLOG_FILE:
1337 ctlog_file = opt_arg();
1338 break;
1339 #endif
1340 case OPT_CHAINCAFILE:
1341 chCAfile = opt_arg();
1342 break;
1343 case OPT_VERIFYCAFILE:
1344 vfyCAfile = opt_arg();
1345 break;
1346 case OPT_CASTORE:
1347 CAstore = opt_arg();
1348 break;
1349 case OPT_NOCASTORE:
1350 noCAstore = 1;
1351 break;
1352 case OPT_CHAINCASTORE:
1353 chCAstore = opt_arg();
1354 break;
1355 case OPT_VERIFYCASTORE:
1356 vfyCAstore = opt_arg();
1357 break;
1358 case OPT_DANE_TLSA_DOMAIN:
1359 dane_tlsa_domain = opt_arg();
1360 break;
1361 case OPT_DANE_TLSA_RRDATA:
1362 if (dane_tlsa_rrset == NULL)
1363 dane_tlsa_rrset = sk_OPENSSL_STRING_new_null();
1364 if (dane_tlsa_rrset == NULL ||
1365 !sk_OPENSSL_STRING_push(dane_tlsa_rrset, opt_arg())) {
1366 BIO_printf(bio_err, "%s: Memory allocation failure\n", prog);
1367 goto end;
1368 }
1369 break;
1370 case OPT_DANE_EE_NO_NAME:
1371 dane_ee_no_name = 1;
1372 break;
1373 case OPT_NEXTPROTONEG:
1374 #ifndef OPENSSL_NO_NEXTPROTONEG
1375 next_proto_neg_in = opt_arg();
1376 #endif
1377 break;
1378 case OPT_ALPN:
1379 alpn_in = opt_arg();
1380 break;
1381 case OPT_SERVERINFO:
1382 p = opt_arg();
1383 len = strlen(p);
1384 for (start = 0, i = 0; i <= len; ++i) {
1385 if (i == len || p[i] == ',') {
1386 serverinfo_types[serverinfo_count] = atoi(p + start);
1387 if (++serverinfo_count == MAX_SI_TYPES)
1388 break;
1389 start = i + 1;
1390 }
1391 }
1392 break;
1393 case OPT_STARTTLS:
1394 if (!opt_pair(opt_arg(), services, &starttls_proto))
1395 goto end;
1396 break;
1397 case OPT_SERVERNAME:
1398 servername = opt_arg();
1399 break;
1400 case OPT_NOSERVERNAME:
1401 noservername = 1;
1402 break;
1403 case OPT_USE_SRTP:
1404 #ifndef OPENSSL_NO_SRTP
1405 srtp_profiles = opt_arg();
1406 #endif
1407 break;
1408 case OPT_KEYMATEXPORT:
1409 keymatexportlabel = opt_arg();
1410 break;
1411 case OPT_KEYMATEXPORTLEN:
1412 keymatexportlen = atoi(opt_arg());
1413 break;
1414 case OPT_ASYNC:
1415 async = 1;
1416 break;
1417 case OPT_MAXFRAGLEN:
1418 len = atoi(opt_arg());
1419 switch (len) {
1420 case 512:
1421 maxfraglen = TLSEXT_max_fragment_length_512;
1422 break;
1423 case 1024:
1424 maxfraglen = TLSEXT_max_fragment_length_1024;
1425 break;
1426 case 2048:
1427 maxfraglen = TLSEXT_max_fragment_length_2048;
1428 break;
1429 case 4096:
1430 maxfraglen = TLSEXT_max_fragment_length_4096;
1431 break;
1432 default:
1433 BIO_printf(bio_err,
1434 "%s: Max Fragment Len %u is out of permitted values",
1435 prog, len);
1436 goto opthelp;
1437 }
1438 break;
1439 case OPT_MAX_SEND_FRAG:
1440 max_send_fragment = atoi(opt_arg());
1441 break;
1442 case OPT_SPLIT_SEND_FRAG:
1443 split_send_fragment = atoi(opt_arg());
1444 break;
1445 case OPT_MAX_PIPELINES:
1446 max_pipelines = atoi(opt_arg());
1447 break;
1448 case OPT_READ_BUF:
1449 read_buf_len = atoi(opt_arg());
1450 break;
1451 case OPT_KEYLOG_FILE:
1452 keylog_file = opt_arg();
1453 break;
1454 case OPT_EARLY_DATA:
1455 early_data_file = opt_arg();
1456 break;
1457 case OPT_ENABLE_PHA:
1458 enable_pha = 1;
1459 break;
1460 }
1461 }
1462
1463 /* Optional argument is connect string if -connect not used. */
1464 argc = opt_num_rest();
1465 if (argc == 1) {
1466 /* Don't allow -connect and a separate argument. */
1467 if (connectstr != NULL) {
1468 BIO_printf(bio_err,
1469 "%s: cannot provide both -connect option and target parameter\n",
1470 prog);
1471 goto opthelp;
1472 }
1473 connect_type = use_inet;
1474 freeandcopy(&connectstr, *opt_rest());
1475 } else if (argc != 0) {
1476 goto opthelp;
1477 }
1478 if (!app_RAND_load())
1479 goto end;
1480
1481 if (count4or6 >= 2) {
1482 BIO_printf(bio_err, "%s: Can't use both -4 and -6\n", prog);
1483 goto opthelp;
1484 }
1485 if (noservername) {
1486 if (servername != NULL) {
1487 BIO_printf(bio_err,
1488 "%s: Can't use -servername and -noservername together\n",
1489 prog);
1490 goto opthelp;
1491 }
1492 if (dane_tlsa_domain != NULL) {
1493 BIO_printf(bio_err,
1494 "%s: Can't use -dane_tlsa_domain and -noservername together\n",
1495 prog);
1496 goto opthelp;
1497 }
1498 }
1499
1500 #ifndef OPENSSL_NO_NEXTPROTONEG
1501 if (min_version == TLS1_3_VERSION && next_proto_neg_in != NULL) {
1502 BIO_printf(bio_err, "Cannot supply -nextprotoneg with TLSv1.3\n");
1503 goto opthelp;
1504 }
1505 #endif
1506
1507 if (connectstr != NULL) {
1508 int res;
1509 char *tmp_host = host, *tmp_port = port;
1510
1511 res = BIO_parse_hostserv(connectstr, &host, &port, BIO_PARSE_PRIO_HOST);
1512 if (tmp_host != host)
1513 OPENSSL_free(tmp_host);
1514 if (tmp_port != port)
1515 OPENSSL_free(tmp_port);
1516 if (!res) {
1517 BIO_printf(bio_err,
1518 "%s: -connect argument or target parameter malformed or ambiguous\n",
1519 prog);
1520 goto end;
1521 }
1522 }
1523
1524 if (proxystr != NULL) {
1525 int res;
1526 char *tmp_host = host, *tmp_port = port;
1527
1528 if (host == NULL || port == NULL) {
1529 BIO_printf(bio_err, "%s: -proxy requires use of -connect or target parameter\n", prog);
1530 goto opthelp;
1531 }
1532
1533 /* Retain the original target host:port for use in the HTTP proxy connect string */
1534 thost = OPENSSL_strdup(host);
1535 tport = OPENSSL_strdup(port);
1536 if (thost == NULL || tport == NULL) {
1537 BIO_printf(bio_err, "%s: out of memory\n", prog);
1538 goto end;
1539 }
1540
1541 res = BIO_parse_hostserv(proxystr, &host, &port, BIO_PARSE_PRIO_HOST);
1542 if (tmp_host != host)
1543 OPENSSL_free(tmp_host);
1544 if (tmp_port != port)
1545 OPENSSL_free(tmp_port);
1546 if (!res) {
1547 BIO_printf(bio_err,
1548 "%s: -proxy argument malformed or ambiguous\n", prog);
1549 goto end;
1550 }
1551 }
1552
1553 if (bindstr != NULL) {
1554 int res;
1555 res = BIO_parse_hostserv(bindstr, &bindhost, &bindport,
1556 BIO_PARSE_PRIO_HOST);
1557 if (!res) {
1558 BIO_printf(bio_err,
1559 "%s: -bind argument parameter malformed or ambiguous\n",
1560 prog);
1561 goto end;
1562 }
1563 }
1564
1565 #ifdef AF_UNIX
1566 if (socket_family == AF_UNIX && socket_type != SOCK_STREAM) {
1567 BIO_printf(bio_err,
1568 "Can't use unix sockets and datagrams together\n");
1569 goto end;
1570 }
1571 #endif
1572
1573 #ifndef OPENSSL_NO_SCTP
1574 if (protocol == IPPROTO_SCTP) {
1575 if (socket_type != SOCK_DGRAM) {
1576 BIO_printf(bio_err, "Can't use -sctp without DTLS\n");
1577 goto end;
1578 }
1579 /* SCTP is unusual. It uses DTLS over a SOCK_STREAM protocol */
1580 socket_type = SOCK_STREAM;
1581 }
1582 #endif
1583
1584 #if !defined(OPENSSL_NO_NEXTPROTONEG)
1585 next_proto.status = -1;
1586 if (next_proto_neg_in) {
1587 next_proto.data =
1588 next_protos_parse(&next_proto.len, next_proto_neg_in);
1589 if (next_proto.data == NULL) {
1590 BIO_printf(bio_err, "Error parsing -nextprotoneg argument\n");
1591 goto end;
1592 }
1593 } else
1594 next_proto.data = NULL;
1595 #endif
1596
1597 if (!app_passwd(passarg, NULL, &pass, NULL)) {
1598 BIO_printf(bio_err, "Error getting private key password\n");
1599 goto end;
1600 }
1601
1602 if (!app_passwd(proxypassarg, NULL, &proxypass, NULL)) {
1603 BIO_printf(bio_err, "Error getting proxy password\n");
1604 goto end;
1605 }
1606
1607 if (proxypass != NULL && proxyuser == NULL) {
1608 BIO_printf(bio_err, "Error: Must specify proxy_user with proxy_pass\n");
1609 goto end;
1610 }
1611
1612 if (key_file == NULL)
1613 key_file = cert_file;
1614
1615 if (key_file != NULL) {
1616 key = load_key(key_file, key_format, 0, pass, e,
1617 "client certificate private key");
1618 if (key == NULL)
1619 goto end;
1620 }
1621
1622 if (cert_file != NULL) {
1623 cert = load_cert_pass(cert_file, cert_format, 1, pass,
1624 "client certificate");
1625 if (cert == NULL)
1626 goto end;
1627 }
1628
1629 if (chain_file != NULL) {
1630 if (!load_certs(chain_file, 0, &chain, pass, "client certificate chain"))
1631 goto end;
1632 }
1633
1634 if (crl_file != NULL) {
1635 X509_CRL *crl;
1636 crl = load_crl(crl_file, crl_format, 0, "CRL");
1637 if (crl == NULL)
1638 goto end;
1639 crls = sk_X509_CRL_new_null();
1640 if (crls == NULL || !sk_X509_CRL_push(crls, crl)) {
1641 BIO_puts(bio_err, "Error adding CRL\n");
1642 ERR_print_errors(bio_err);
1643 X509_CRL_free(crl);
1644 goto end;
1645 }
1646 }
1647
1648 if (!load_excert(&exc))
1649 goto end;
1650
1651 if (bio_c_out == NULL) {
1652 if (c_quiet && !c_debug) {
1653 bio_c_out = BIO_new(BIO_s_null());
1654 if (c_msg && bio_c_msg == NULL)
1655 bio_c_msg = dup_bio_out(FORMAT_TEXT);
1656 } else if (bio_c_out == NULL)
1657 bio_c_out = dup_bio_out(FORMAT_TEXT);
1658 }
1659 #ifndef OPENSSL_NO_SRP
1660 if (!app_passwd(srppass, NULL, &srp_arg.srppassin, NULL)) {
1661 BIO_printf(bio_err, "Error getting password\n");
1662 goto end;
1663 }
1664 #endif
1665
1666 ctx = SSL_CTX_new_ex(app_get0_libctx(), app_get0_propq(), meth);
1667 if (ctx == NULL) {
1668 ERR_print_errors(bio_err);
1669 goto end;
1670 }
1671
1672 SSL_CTX_clear_mode(ctx, SSL_MODE_AUTO_RETRY);
1673
1674 if (sdebug)
1675 ssl_ctx_security_debug(ctx, sdebug);
1676
1677 if (!config_ctx(cctx, ssl_args, ctx))
1678 goto end;
1679
1680 if (ssl_config != NULL) {
1681 if (SSL_CTX_config(ctx, ssl_config) == 0) {
1682 BIO_printf(bio_err, "Error using configuration \"%s\"\n",
1683 ssl_config);
1684 ERR_print_errors(bio_err);
1685 goto end;
1686 }
1687 }
1688
1689 #ifndef OPENSSL_NO_SCTP
1690 if (protocol == IPPROTO_SCTP && sctp_label_bug == 1)
1691 SSL_CTX_set_mode(ctx, SSL_MODE_DTLS_SCTP_LABEL_LENGTH_BUG);
1692 #endif
1693
1694 if (min_version != 0
1695 && SSL_CTX_set_min_proto_version(ctx, min_version) == 0)
1696 goto end;
1697 if (max_version != 0
1698 && SSL_CTX_set_max_proto_version(ctx, max_version) == 0)
1699 goto end;
1700
1701 if (ignore_unexpected_eof)
1702 SSL_CTX_set_options(ctx, SSL_OP_IGNORE_UNEXPECTED_EOF);
1703
1704 if (vpmtouched && !SSL_CTX_set1_param(ctx, vpm)) {
1705 BIO_printf(bio_err, "Error setting verify params\n");
1706 ERR_print_errors(bio_err);
1707 goto end;
1708 }
1709
1710 if (async) {
1711 SSL_CTX_set_mode(ctx, SSL_MODE_ASYNC);
1712 }
1713
1714 if (max_send_fragment > 0
1715 && !SSL_CTX_set_max_send_fragment(ctx, max_send_fragment)) {
1716 BIO_printf(bio_err, "%s: Max send fragment size %u is out of permitted range\n",
1717 prog, max_send_fragment);
1718 goto end;
1719 }
1720
1721 if (split_send_fragment > 0
1722 && !SSL_CTX_set_split_send_fragment(ctx, split_send_fragment)) {
1723 BIO_printf(bio_err, "%s: Split send fragment size %u is out of permitted range\n",
1724 prog, split_send_fragment);
1725 goto end;
1726 }
1727
1728 if (max_pipelines > 0
1729 && !SSL_CTX_set_max_pipelines(ctx, max_pipelines)) {
1730 BIO_printf(bio_err, "%s: Max pipelines %u is out of permitted range\n",
1731 prog, max_pipelines);
1732 goto end;
1733 }
1734
1735 if (read_buf_len > 0) {
1736 SSL_CTX_set_default_read_buffer_len(ctx, read_buf_len);
1737 }
1738
1739 if (maxfraglen > 0
1740 && !SSL_CTX_set_tlsext_max_fragment_length(ctx, maxfraglen)) {
1741 BIO_printf(bio_err,
1742 "%s: Max Fragment Length code %u is out of permitted values"
1743 "\n", prog, maxfraglen);
1744 goto end;
1745 }
1746
1747 if (!ssl_load_stores(ctx,
1748 vfyCApath, vfyCAfile, vfyCAstore,
1749 chCApath, chCAfile, chCAstore,
1750 crls, crl_download)) {
1751 BIO_printf(bio_err, "Error loading store locations\n");
1752 ERR_print_errors(bio_err);
1753 goto end;
1754 }
1755 if (ReqCAfile != NULL) {
1756 STACK_OF(X509_NAME) *nm = sk_X509_NAME_new_null();
1757
1758 if (nm == NULL || !SSL_add_file_cert_subjects_to_stack(nm, ReqCAfile)) {
1759 sk_X509_NAME_pop_free(nm, X509_NAME_free);
1760 BIO_printf(bio_err, "Error loading CA names\n");
1761 ERR_print_errors(bio_err);
1762 goto end;
1763 }
1764 SSL_CTX_set0_CA_list(ctx, nm);
1765 }
1766 #ifndef OPENSSL_NO_ENGINE
1767 if (ssl_client_engine) {
1768 if (!SSL_CTX_set_client_cert_engine(ctx, ssl_client_engine)) {
1769 BIO_puts(bio_err, "Error setting client auth engine\n");
1770 ERR_print_errors(bio_err);
1771 release_engine(ssl_client_engine);
1772 goto end;
1773 }
1774 release_engine(ssl_client_engine);
1775 }
1776 #endif
1777
1778 #ifndef OPENSSL_NO_PSK
1779 if (psk_key != NULL) {
1780 if (c_debug)
1781 BIO_printf(bio_c_out, "PSK key given, setting client callback\n");
1782 SSL_CTX_set_psk_client_callback(ctx, psk_client_cb);
1783 }
1784 #endif
1785 if (psksessf != NULL) {
1786 BIO *stmp = BIO_new_file(psksessf, "r");
1787
1788 if (stmp == NULL) {
1789 BIO_printf(bio_err, "Can't open PSK session file %s\n", psksessf);
1790 ERR_print_errors(bio_err);
1791 goto end;
1792 }
1793 psksess = PEM_read_bio_SSL_SESSION(stmp, NULL, 0, NULL);
1794 BIO_free(stmp);
1795 if (psksess == NULL) {
1796 BIO_printf(bio_err, "Can't read PSK session file %s\n", psksessf);
1797 ERR_print_errors(bio_err);
1798 goto end;
1799 }
1800 }
1801 if (psk_key != NULL || psksess != NULL)
1802 SSL_CTX_set_psk_use_session_callback(ctx, psk_use_session_cb);
1803
1804 #ifndef OPENSSL_NO_SRTP
1805 if (srtp_profiles != NULL) {
1806 /* Returns 0 on success! */
1807 if (SSL_CTX_set_tlsext_use_srtp(ctx, srtp_profiles) != 0) {
1808 BIO_printf(bio_err, "Error setting SRTP profile\n");
1809 ERR_print_errors(bio_err);
1810 goto end;
1811 }
1812 }
1813 #endif
1814
1815 if (exc != NULL)
1816 ssl_ctx_set_excert(ctx, exc);
1817
1818 #if !defined(OPENSSL_NO_NEXTPROTONEG)
1819 if (next_proto.data != NULL)
1820 SSL_CTX_set_next_proto_select_cb(ctx, next_proto_cb, &next_proto);
1821 #endif
1822 if (alpn_in) {
1823 size_t alpn_len;
1824 unsigned char *alpn = next_protos_parse(&alpn_len, alpn_in);
1825
1826 if (alpn == NULL) {
1827 BIO_printf(bio_err, "Error parsing -alpn argument\n");
1828 goto end;
1829 }
1830 /* Returns 0 on success! */
1831 if (SSL_CTX_set_alpn_protos(ctx, alpn, alpn_len) != 0) {
1832 BIO_printf(bio_err, "Error setting ALPN\n");
1833 goto end;
1834 }
1835 OPENSSL_free(alpn);
1836 }
1837
1838 for (i = 0; i < serverinfo_count; i++) {
1839 if (!SSL_CTX_add_client_custom_ext(ctx,
1840 serverinfo_types[i],
1841 NULL, NULL, NULL,
1842 serverinfo_cli_parse_cb, NULL)) {
1843 BIO_printf(bio_err,
1844 "Warning: Unable to add custom extension %u, skipping\n",
1845 serverinfo_types[i]);
1846 }
1847 }
1848
1849 if (state)
1850 SSL_CTX_set_info_callback(ctx, apps_ssl_info_callback);
1851
1852 #ifndef OPENSSL_NO_CT
1853 /* Enable SCT processing, without early connection termination */
1854 if (ct_validation &&
1855 !SSL_CTX_enable_ct(ctx, SSL_CT_VALIDATION_PERMISSIVE)) {
1856 ERR_print_errors(bio_err);
1857 goto end;
1858 }
1859
1860 if (!ctx_set_ctlog_list_file(ctx, ctlog_file)) {
1861 if (ct_validation) {
1862 ERR_print_errors(bio_err);
1863 goto end;
1864 }
1865
1866 /*
1867 * If CT validation is not enabled, the log list isn't needed so don't
1868 * show errors or abort. We try to load it regardless because then we
1869 * can show the names of the logs any SCTs came from (SCTs may be seen
1870 * even with validation disabled).
1871 */
1872 ERR_clear_error();
1873 }
1874 #endif
1875
1876 SSL_CTX_set_verify(ctx, verify, verify_callback);
1877
1878 if (!ctx_set_verify_locations(ctx, CAfile, noCAfile, CApath, noCApath,
1879 CAstore, noCAstore)) {
1880 ERR_print_errors(bio_err);
1881 goto end;
1882 }
1883
1884 ssl_ctx_add_crls(ctx, crls, crl_download);
1885
1886 if (!set_cert_key_stuff(ctx, cert, key, chain, build_chain))
1887 goto end;
1888
1889 if (!noservername) {
1890 tlsextcbp.biodebug = bio_err;
1891 SSL_CTX_set_tlsext_servername_callback(ctx, ssl_servername_cb);
1892 SSL_CTX_set_tlsext_servername_arg(ctx, &tlsextcbp);
1893 }
1894 #ifndef OPENSSL_NO_SRP
1895 if (srp_arg.srplogin != NULL
1896 && !set_up_srp_arg(ctx, &srp_arg, srp_lateuser, c_msg, c_debug))
1897 goto end;
1898 # endif
1899
1900 if (dane_tlsa_domain != NULL) {
1901 if (SSL_CTX_dane_enable(ctx) <= 0) {
1902 BIO_printf(bio_err,
1903 "%s: Error enabling DANE TLSA authentication.\n",
1904 prog);
1905 ERR_print_errors(bio_err);
1906 goto end;
1907 }
1908 }
1909
1910 /*
1911 * In TLSv1.3 NewSessionTicket messages arrive after the handshake and can
1912 * come at any time. Therefore we use a callback to write out the session
1913 * when we know about it. This approach works for < TLSv1.3 as well.
1914 */
1915 SSL_CTX_set_session_cache_mode(ctx, SSL_SESS_CACHE_CLIENT
1916 | SSL_SESS_CACHE_NO_INTERNAL_STORE);
1917 SSL_CTX_sess_set_new_cb(ctx, new_session_cb);
1918
1919 if (set_keylog_file(ctx, keylog_file))
1920 goto end;
1921
1922 con = SSL_new(ctx);
1923 if (con == NULL)
1924 goto end;
1925
1926 if (enable_pha)
1927 SSL_set_post_handshake_auth(con, 1);
1928
1929 if (sess_in != NULL) {
1930 SSL_SESSION *sess;
1931 BIO *stmp = BIO_new_file(sess_in, "r");
1932 if (stmp == NULL) {
1933 BIO_printf(bio_err, "Can't open session file %s\n", sess_in);
1934 ERR_print_errors(bio_err);
1935 goto end;
1936 }
1937 sess = PEM_read_bio_SSL_SESSION(stmp, NULL, 0, NULL);
1938 BIO_free(stmp);
1939 if (sess == NULL) {
1940 BIO_printf(bio_err, "Can't open session file %s\n", sess_in);
1941 ERR_print_errors(bio_err);
1942 goto end;
1943 }
1944 if (!SSL_set_session(con, sess)) {
1945 BIO_printf(bio_err, "Can't set session\n");
1946 ERR_print_errors(bio_err);
1947 goto end;
1948 }
1949
1950 SSL_SESSION_free(sess);
1951 }
1952
1953 if (fallback_scsv)
1954 SSL_set_mode(con, SSL_MODE_SEND_FALLBACK_SCSV);
1955
1956 if (!noservername && (servername != NULL || dane_tlsa_domain == NULL)) {
1957 if (servername == NULL) {
1958 if(host == NULL || is_dNS_name(host))
1959 servername = (host == NULL) ? "localhost" : host;
1960 }
1961 if (servername != NULL && !SSL_set_tlsext_host_name(con, servername)) {
1962 BIO_printf(bio_err, "Unable to set TLS servername extension.\n");
1963 ERR_print_errors(bio_err);
1964 goto end;
1965 }
1966 }
1967
1968 if (dane_tlsa_domain != NULL) {
1969 if (SSL_dane_enable(con, dane_tlsa_domain) <= 0) {
1970 BIO_printf(bio_err, "%s: Error enabling DANE TLSA "
1971 "authentication.\n", prog);
1972 ERR_print_errors(bio_err);
1973 goto end;
1974 }
1975 if (dane_tlsa_rrset == NULL) {
1976 BIO_printf(bio_err, "%s: DANE TLSA authentication requires at "
1977 "least one -dane_tlsa_rrdata option.\n", prog);
1978 goto end;
1979 }
1980 if (tlsa_import_rrset(con, dane_tlsa_rrset) <= 0) {
1981 BIO_printf(bio_err, "%s: Failed to import any TLSA "
1982 "records.\n", prog);
1983 goto end;
1984 }
1985 if (dane_ee_no_name)
1986 SSL_dane_set_flags(con, DANE_FLAG_NO_DANE_EE_NAMECHECKS);
1987 } else if (dane_tlsa_rrset != NULL) {
1988 BIO_printf(bio_err, "%s: DANE TLSA authentication requires the "
1989 "-dane_tlsa_domain option.\n", prog);
1990 goto end;
1991 }
1992
1993 re_start:
1994 if (init_client(&sock, host, port, bindhost, bindport, socket_family,
1995 socket_type, protocol) == 0) {
1996 BIO_printf(bio_err, "connect:errno=%d\n", get_last_socket_error());
1997 BIO_closesocket(sock);
1998 goto end;
1999 }
2000 BIO_printf(bio_c_out, "CONNECTED(%08X)\n", sock);
2001
2002 if (c_nbio) {
2003 if (!BIO_socket_nbio(sock, 1)) {
2004 ERR_print_errors(bio_err);
2005 goto end;
2006 }
2007 BIO_printf(bio_c_out, "Turned on non blocking io\n");
2008 }
2009 #ifndef OPENSSL_NO_DTLS
2010 if (isdtls) {
2011 union BIO_sock_info_u peer_info;
2012
2013 #ifndef OPENSSL_NO_SCTP
2014 if (protocol == IPPROTO_SCTP)
2015 sbio = BIO_new_dgram_sctp(sock, BIO_NOCLOSE);
2016 else
2017 #endif
2018 sbio = BIO_new_dgram(sock, BIO_NOCLOSE);
2019
2020 if ((peer_info.addr = BIO_ADDR_new()) == NULL) {
2021 BIO_printf(bio_err, "memory allocation failure\n");
2022 BIO_closesocket(sock);
2023 goto end;
2024 }
2025 if (!BIO_sock_info(sock, BIO_SOCK_INFO_ADDRESS, &peer_info)) {
2026 BIO_printf(bio_err, "getsockname:errno=%d\n",
2027 get_last_socket_error());
2028 BIO_ADDR_free(peer_info.addr);
2029 BIO_closesocket(sock);
2030 goto end;
2031 }
2032
2033 (void)BIO_ctrl_set_connected(sbio, peer_info.addr);
2034 BIO_ADDR_free(peer_info.addr);
2035 peer_info.addr = NULL;
2036
2037 if (enable_timeouts) {
2038 timeout.tv_sec = 0;
2039 timeout.tv_usec = DGRAM_RCV_TIMEOUT;
2040 BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_RECV_TIMEOUT, 0, &timeout);
2041
2042 timeout.tv_sec = 0;
2043 timeout.tv_usec = DGRAM_SND_TIMEOUT;
2044 BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_SEND_TIMEOUT, 0, &timeout);
2045 }
2046
2047 if (socket_mtu) {
2048 if (socket_mtu < DTLS_get_link_min_mtu(con)) {
2049 BIO_printf(bio_err, "MTU too small. Must be at least %ld\n",
2050 DTLS_get_link_min_mtu(con));
2051 BIO_free(sbio);
2052 goto shut;
2053 }
2054 SSL_set_options(con, SSL_OP_NO_QUERY_MTU);
2055 if (!DTLS_set_link_mtu(con, socket_mtu)) {
2056 BIO_printf(bio_err, "Failed to set MTU\n");
2057 BIO_free(sbio);
2058 goto shut;
2059 }
2060 } else {
2061 /* want to do MTU discovery */
2062 BIO_ctrl(sbio, BIO_CTRL_DGRAM_MTU_DISCOVER, 0, NULL);
2063 }
2064 } else
2065 #endif /* OPENSSL_NO_DTLS */
2066 sbio = BIO_new_socket(sock, BIO_NOCLOSE);
2067
2068 if (nbio_test) {
2069 BIO *test;
2070
2071 test = BIO_new(BIO_f_nbio_test());
2072 sbio = BIO_push(test, sbio);
2073 }
2074
2075 if (c_debug) {
2076 BIO_set_callback_ex(sbio, bio_dump_callback);
2077 BIO_set_callback_arg(sbio, (char *)bio_c_out);
2078 }
2079 if (c_msg) {
2080 #ifndef OPENSSL_NO_SSL_TRACE
2081 if (c_msg == 2)
2082 SSL_set_msg_callback(con, SSL_trace);
2083 else
2084 #endif
2085 SSL_set_msg_callback(con, msg_cb);
2086 SSL_set_msg_callback_arg(con, bio_c_msg ? bio_c_msg : bio_c_out);
2087 }
2088
2089 if (c_tlsextdebug) {
2090 SSL_set_tlsext_debug_callback(con, tlsext_cb);
2091 SSL_set_tlsext_debug_arg(con, bio_c_out);
2092 }
2093 #ifndef OPENSSL_NO_OCSP
2094 if (c_status_req) {
2095 SSL_set_tlsext_status_type(con, TLSEXT_STATUSTYPE_ocsp);
2096 SSL_CTX_set_tlsext_status_cb(ctx, ocsp_resp_cb);
2097 SSL_CTX_set_tlsext_status_arg(ctx, bio_c_out);
2098 }
2099 #endif
2100
2101 SSL_set_bio(con, sbio, sbio);
2102 SSL_set_connect_state(con);
2103
2104 /* ok, lets connect */
2105 if (fileno_stdin() > SSL_get_fd(con))
2106 width = fileno_stdin() + 1;
2107 else
2108 width = SSL_get_fd(con) + 1;
2109
2110 read_tty = 1;
2111 write_tty = 0;
2112 tty_on = 0;
2113 read_ssl = 1;
2114 write_ssl = 1;
2115
2116 cbuf_len = 0;
2117 cbuf_off = 0;
2118 sbuf_len = 0;
2119 sbuf_off = 0;
2120
2121 switch ((PROTOCOL_CHOICE) starttls_proto) {
2122 case PROTO_OFF:
2123 break;
2124 case PROTO_LMTP:
2125 case PROTO_SMTP:
2126 {
2127 /*
2128 * This is an ugly hack that does a lot of assumptions. We do
2129 * have to handle multi-line responses which may come in a single
2130 * packet or not. We therefore have to use BIO_gets() which does
2131 * need a buffering BIO. So during the initial chitchat we do
2132 * push a buffering BIO into the chain that is removed again
2133 * later on to not disturb the rest of the s_client operation.
2134 */
2135 int foundit = 0;
2136 BIO *fbio = BIO_new(BIO_f_buffer());
2137
2138 BIO_push(fbio, sbio);
2139 /* Wait for multi-line response to end from LMTP or SMTP */
2140 do {
2141 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2142 } while (mbuf_len > 3 && mbuf[3] == '-');
2143 if (protohost == NULL)
2144 protohost = "mail.example.com";
2145 if (starttls_proto == (int)PROTO_LMTP)
2146 BIO_printf(fbio, "LHLO %s\r\n", protohost);
2147 else
2148 BIO_printf(fbio, "EHLO %s\r\n", protohost);
2149 (void)BIO_flush(fbio);
2150 /*
2151 * Wait for multi-line response to end LHLO LMTP or EHLO SMTP
2152 * response.
2153 */
2154 do {
2155 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2156 if (strstr(mbuf, "STARTTLS"))
2157 foundit = 1;
2158 } while (mbuf_len > 3 && mbuf[3] == '-');
2159 (void)BIO_flush(fbio);
2160 BIO_pop(fbio);
2161 BIO_free(fbio);
2162 if (!foundit)
2163 BIO_printf(bio_err,
2164 "Didn't find STARTTLS in server response,"
2165 " trying anyway...\n");
2166 BIO_printf(sbio, "STARTTLS\r\n");
2167 BIO_read(sbio, sbuf, BUFSIZZ);
2168 }
2169 break;
2170 case PROTO_POP3:
2171 {
2172 BIO_read(sbio, mbuf, BUFSIZZ);
2173 BIO_printf(sbio, "STLS\r\n");
2174 mbuf_len = BIO_read(sbio, sbuf, BUFSIZZ);
2175 if (mbuf_len < 0) {
2176 BIO_printf(bio_err, "BIO_read failed\n");
2177 goto end;
2178 }
2179 }
2180 break;
2181 case PROTO_IMAP:
2182 {
2183 int foundit = 0;
2184 BIO *fbio = BIO_new(BIO_f_buffer());
2185
2186 BIO_push(fbio, sbio);
2187 BIO_gets(fbio, mbuf, BUFSIZZ);
2188 /* STARTTLS command requires CAPABILITY... */
2189 BIO_printf(fbio, ". CAPABILITY\r\n");
2190 (void)BIO_flush(fbio);
2191 /* wait for multi-line CAPABILITY response */
2192 do {
2193 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2194 if (strstr(mbuf, "STARTTLS"))
2195 foundit = 1;
2196 }
2197 while (mbuf_len > 3 && mbuf[0] != '.');
2198 (void)BIO_flush(fbio);
2199 BIO_pop(fbio);
2200 BIO_free(fbio);
2201 if (!foundit)
2202 BIO_printf(bio_err,
2203 "Didn't find STARTTLS in server response,"
2204 " trying anyway...\n");
2205 BIO_printf(sbio, ". STARTTLS\r\n");
2206 BIO_read(sbio, sbuf, BUFSIZZ);
2207 }
2208 break;
2209 case PROTO_FTP:
2210 {
2211 BIO *fbio = BIO_new(BIO_f_buffer());
2212
2213 BIO_push(fbio, sbio);
2214 /* wait for multi-line response to end from FTP */
2215 do {
2216 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2217 }
2218 while (mbuf_len > 3 && (!isdigit(mbuf[0]) || !isdigit(mbuf[1]) || !isdigit(mbuf[2]) || mbuf[3] != ' '));
2219 (void)BIO_flush(fbio);
2220 BIO_pop(fbio);
2221 BIO_free(fbio);
2222 BIO_printf(sbio, "AUTH TLS\r\n");
2223 BIO_read(sbio, sbuf, BUFSIZZ);
2224 }
2225 break;
2226 case PROTO_XMPP:
2227 case PROTO_XMPP_SERVER:
2228 {
2229 int seen = 0;
2230 BIO_printf(sbio, "<stream:stream "
2231 "xmlns:stream='http://etherx.jabber.org/streams' "
2232 "xmlns='jabber:%s' to='%s' version='1.0'>",
2233 starttls_proto == PROTO_XMPP ? "client" : "server",
2234 protohost ? protohost : host);
2235 seen = BIO_read(sbio, mbuf, BUFSIZZ);
2236 if (seen < 0) {
2237 BIO_printf(bio_err, "BIO_read failed\n");
2238 goto end;
2239 }
2240 mbuf[seen] = '\0';
2241 while (!strstr
2242 (mbuf, "<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'")
2243 && !strstr(mbuf,
2244 "<starttls xmlns=\"urn:ietf:params:xml:ns:xmpp-tls\""))
2245 {
2246 seen = BIO_read(sbio, mbuf, BUFSIZZ);
2247
2248 if (seen <= 0)
2249 goto shut;
2250
2251 mbuf[seen] = '\0';
2252 }
2253 BIO_printf(sbio,
2254 "<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'/>");
2255 seen = BIO_read(sbio, sbuf, BUFSIZZ);
2256 if (seen < 0) {
2257 BIO_printf(bio_err, "BIO_read failed\n");
2258 goto shut;
2259 }
2260 sbuf[seen] = '\0';
2261 if (!strstr(sbuf, "<proceed"))
2262 goto shut;
2263 mbuf[0] = '\0';
2264 }
2265 break;
2266 case PROTO_TELNET:
2267 {
2268 static const unsigned char tls_do[] = {
2269 /* IAC DO START_TLS */
2270 255, 253, 46
2271 };
2272 static const unsigned char tls_will[] = {
2273 /* IAC WILL START_TLS */
2274 255, 251, 46
2275 };
2276 static const unsigned char tls_follows[] = {
2277 /* IAC SB START_TLS FOLLOWS IAC SE */
2278 255, 250, 46, 1, 255, 240
2279 };
2280 int bytes;
2281
2282 /* Telnet server should demand we issue START_TLS */
2283 bytes = BIO_read(sbio, mbuf, BUFSIZZ);
2284 if (bytes != 3 || memcmp(mbuf, tls_do, 3) != 0)
2285 goto shut;
2286 /* Agree to issue START_TLS and send the FOLLOWS sub-command */
2287 BIO_write(sbio, tls_will, 3);
2288 BIO_write(sbio, tls_follows, 6);
2289 (void)BIO_flush(sbio);
2290 /* Telnet server also sent the FOLLOWS sub-command */
2291 bytes = BIO_read(sbio, mbuf, BUFSIZZ);
2292 if (bytes != 6 || memcmp(mbuf, tls_follows, 6) != 0)
2293 goto shut;
2294 }
2295 break;
2296 case PROTO_CONNECT:
2297 /* Here we must use the connect string target host & port */
2298 if (!OSSL_HTTP_proxy_connect(sbio, thost, tport, proxyuser, proxypass,
2299 0 /* no timeout */, bio_err, prog))
2300 goto shut;
2301 break;
2302 case PROTO_IRC:
2303 {
2304 int numeric;
2305 BIO *fbio = BIO_new(BIO_f_buffer());
2306
2307 BIO_push(fbio, sbio);
2308 BIO_printf(fbio, "STARTTLS\r\n");
2309 (void)BIO_flush(fbio);
2310 width = SSL_get_fd(con) + 1;
2311
2312 do {
2313 numeric = 0;
2314
2315 FD_ZERO(&readfds);
2316 openssl_fdset(SSL_get_fd(con), &readfds);
2317 timeout.tv_sec = S_CLIENT_IRC_READ_TIMEOUT;
2318 timeout.tv_usec = 0;
2319 /*
2320 * If the IRCd doesn't respond within
2321 * S_CLIENT_IRC_READ_TIMEOUT seconds, assume
2322 * it doesn't support STARTTLS. Many IRCds
2323 * will not give _any_ sort of response to a
2324 * STARTTLS command when it's not supported.
2325 */
2326 if (!BIO_get_buffer_num_lines(fbio)
2327 && !BIO_pending(fbio)
2328 && !BIO_pending(sbio)
2329 && select(width, (void *)&readfds, NULL, NULL,
2330 &timeout) < 1) {
2331 BIO_printf(bio_err,
2332 "Timeout waiting for response (%d seconds).\n",
2333 S_CLIENT_IRC_READ_TIMEOUT);
2334 break;
2335 }
2336
2337 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2338 if (mbuf_len < 1 || sscanf(mbuf, "%*s %d", &numeric) != 1)
2339 break;
2340 /* :example.net 451 STARTTLS :You have not registered */
2341 /* :example.net 421 STARTTLS :Unknown command */
2342 if ((numeric == 451 || numeric == 421)
2343 && strstr(mbuf, "STARTTLS") != NULL) {
2344 BIO_printf(bio_err, "STARTTLS not supported: %s", mbuf);
2345 break;
2346 }
2347 if (numeric == 691) {
2348 BIO_printf(bio_err, "STARTTLS negotiation failed: ");
2349 ERR_print_errors(bio_err);
2350 break;
2351 }
2352 } while (numeric != 670);
2353
2354 (void)BIO_flush(fbio);
2355 BIO_pop(fbio);
2356 BIO_free(fbio);
2357 if (numeric != 670) {
2358 BIO_printf(bio_err, "Server does not support STARTTLS.\n");
2359 ret = 1;
2360 goto shut;
2361 }
2362 }
2363 break;
2364 case PROTO_MYSQL:
2365 {
2366 /* SSL request packet */
2367 static const unsigned char ssl_req[] = {
2368 /* payload_length, sequence_id */
2369 0x20, 0x00, 0x00, 0x01,
2370 /* payload */
2371 /* capability flags, CLIENT_SSL always set */
2372 0x85, 0xae, 0x7f, 0x00,
2373 /* max-packet size */
2374 0x00, 0x00, 0x00, 0x01,
2375 /* character set */
2376 0x21,
2377 /* string[23] reserved (all [0]) */
2378 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
2379 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
2380 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
2381 };
2382 int bytes = 0;
2383 int ssl_flg = 0x800;
2384 int pos;
2385 const unsigned char *packet = (const unsigned char *)sbuf;
2386
2387 /* Receiving Initial Handshake packet. */
2388 bytes = BIO_read(sbio, (void *)packet, BUFSIZZ);
2389 if (bytes < 0) {
2390 BIO_printf(bio_err, "BIO_read failed\n");
2391 goto shut;
2392 /* Packet length[3], Packet number[1] + minimum payload[17] */
2393 } else if (bytes < 21) {
2394 BIO_printf(bio_err, "MySQL packet too short.\n");
2395 goto shut;
2396 } else if (bytes != (4 + packet[0] +
2397 (packet[1] << 8) +
2398 (packet[2] << 16))) {
2399 BIO_printf(bio_err, "MySQL packet length does not match.\n");
2400 goto shut;
2401 /* protocol version[1] */
2402 } else if (packet[4] != 0xA) {
2403 BIO_printf(bio_err,
2404 "Only MySQL protocol version 10 is supported.\n");
2405 goto shut;
2406 }
2407
2408 pos = 5;
2409 /* server version[string+NULL] */
2410 for (;;) {
2411 if (pos >= bytes) {
2412 BIO_printf(bio_err, "Cannot confirm server version. ");
2413 goto shut;
2414 } else if (packet[pos++] == '\0') {
2415 break;
2416 }
2417 }
2418
2419 /* make sure we have at least 15 bytes left in the packet */
2420 if (pos + 15 > bytes) {
2421 BIO_printf(bio_err,
2422 "MySQL server handshake packet is broken.\n");
2423 goto shut;
2424 }
2425
2426 pos += 12; /* skip over conn id[4] + SALT[8] */
2427 if (packet[pos++] != '\0') { /* verify filler */
2428 BIO_printf(bio_err,
2429 "MySQL packet is broken.\n");
2430 goto shut;
2431 }
2432
2433 /* capability flags[2] */
2434 if (!((packet[pos] + (packet[pos + 1] << 8)) & ssl_flg)) {
2435 BIO_printf(bio_err, "MySQL server does not support SSL.\n");
2436 goto shut;
2437 }
2438
2439 /* Sending SSL Handshake packet. */
2440 BIO_write(sbio, ssl_req, sizeof(ssl_req));
2441 (void)BIO_flush(sbio);
2442 }
2443 break;
2444 case PROTO_POSTGRES:
2445 {
2446 static const unsigned char ssl_request[] = {
2447 /* Length SSLRequest */
2448 0, 0, 0, 8, 4, 210, 22, 47
2449 };
2450 int bytes;
2451
2452 /* Send SSLRequest packet */
2453 BIO_write(sbio, ssl_request, 8);
2454 (void)BIO_flush(sbio);
2455
2456 /* Reply will be a single S if SSL is enabled */
2457 bytes = BIO_read(sbio, sbuf, BUFSIZZ);
2458 if (bytes != 1 || sbuf[0] != 'S')
2459 goto shut;
2460 }
2461 break;
2462 case PROTO_NNTP:
2463 {
2464 int foundit = 0;
2465 BIO *fbio = BIO_new(BIO_f_buffer());
2466
2467 BIO_push(fbio, sbio);
2468 BIO_gets(fbio, mbuf, BUFSIZZ);
2469 /* STARTTLS command requires CAPABILITIES... */
2470 BIO_printf(fbio, "CAPABILITIES\r\n");
2471 (void)BIO_flush(fbio);
2472 BIO_gets(fbio, mbuf, BUFSIZZ);
2473 /* no point in trying to parse the CAPABILITIES response if there is none */
2474 if (strstr(mbuf, "101") != NULL) {
2475 /* wait for multi-line CAPABILITIES response */
2476 do {
2477 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2478 if (strstr(mbuf, "STARTTLS"))
2479 foundit = 1;
2480 } while (mbuf_len > 1 && mbuf[0] != '.');
2481 }
2482 (void)BIO_flush(fbio);
2483 BIO_pop(fbio);
2484 BIO_free(fbio);
2485 if (!foundit)
2486 BIO_printf(bio_err,
2487 "Didn't find STARTTLS in server response,"
2488 " trying anyway...\n");
2489 BIO_printf(sbio, "STARTTLS\r\n");
2490 mbuf_len = BIO_read(sbio, mbuf, BUFSIZZ);
2491 if (mbuf_len < 0) {
2492 BIO_printf(bio_err, "BIO_read failed\n");
2493 goto end;
2494 }
2495 mbuf[mbuf_len] = '\0';
2496 if (strstr(mbuf, "382") == NULL) {
2497 BIO_printf(bio_err, "STARTTLS failed: %s", mbuf);
2498 goto shut;
2499 }
2500 }
2501 break;
2502 case PROTO_SIEVE:
2503 {
2504 int foundit = 0;
2505 BIO *fbio = BIO_new(BIO_f_buffer());
2506
2507 BIO_push(fbio, sbio);
2508 /* wait for multi-line response to end from Sieve */
2509 do {
2510 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2511 /*
2512 * According to RFC 5804 § 1.7, capability
2513 * is case-insensitive, make it uppercase
2514 */
2515 if (mbuf_len > 1 && mbuf[0] == '"') {
2516 make_uppercase(mbuf);
2517 if (strncmp(mbuf, "\"STARTTLS\"", 10) == 0)
2518 foundit = 1;
2519 }
2520 } while (mbuf_len > 1 && mbuf[0] == '"');
2521 (void)BIO_flush(fbio);
2522 BIO_pop(fbio);
2523 BIO_free(fbio);
2524 if (!foundit)
2525 BIO_printf(bio_err,
2526 "Didn't find STARTTLS in server response,"
2527 " trying anyway...\n");
2528 BIO_printf(sbio, "STARTTLS\r\n");
2529 mbuf_len = BIO_read(sbio, mbuf, BUFSIZZ);
2530 if (mbuf_len < 0) {
2531 BIO_printf(bio_err, "BIO_read failed\n");
2532 goto end;
2533 }
2534 mbuf[mbuf_len] = '\0';
2535 if (mbuf_len < 2) {
2536 BIO_printf(bio_err, "STARTTLS failed: %s", mbuf);
2537 goto shut;
2538 }
2539 /*
2540 * According to RFC 5804 § 2.2, response codes are case-
2541 * insensitive, make it uppercase but preserve the response.
2542 */
2543 strncpy(sbuf, mbuf, 2);
2544 make_uppercase(sbuf);
2545 if (strncmp(sbuf, "OK", 2) != 0) {
2546 BIO_printf(bio_err, "STARTTLS not supported: %s", mbuf);
2547 goto shut;
2548 }
2549 }
2550 break;
2551 case PROTO_LDAP:
2552 {
2553 /* StartTLS Operation according to RFC 4511 */
2554 static char ldap_tls_genconf[] = "asn1=SEQUENCE:LDAPMessage\n"
2555 "[LDAPMessage]\n"
2556 "messageID=INTEGER:1\n"
2557 "extendedReq=EXPLICIT:23A,IMPLICIT:0C,"
2558 "FORMAT:ASCII,OCT:1.3.6.1.4.1.1466.20037\n";
2559 long errline = -1;
2560 char *genstr = NULL;
2561 int result = -1;
2562 ASN1_TYPE *atyp = NULL;
2563 BIO *ldapbio = BIO_new(BIO_s_mem());
2564 CONF *cnf = NCONF_new(NULL);
2565
2566 if (cnf == NULL) {
2567 BIO_free(ldapbio);
2568 goto end;
2569 }
2570 BIO_puts(ldapbio, ldap_tls_genconf);
2571 if (NCONF_load_bio(cnf, ldapbio, &errline) <= 0) {
2572 BIO_free(ldapbio);
2573 NCONF_free(cnf);
2574 if (errline <= 0) {
2575 BIO_printf(bio_err, "NCONF_load_bio failed\n");
2576 goto end;
2577 } else {
2578 BIO_printf(bio_err, "Error on line %ld\n", errline);
2579 goto end;
2580 }
2581 }
2582 BIO_free(ldapbio);
2583 genstr = NCONF_get_string(cnf, "default", "asn1");
2584 if (genstr == NULL) {
2585 NCONF_free(cnf);
2586 BIO_printf(bio_err, "NCONF_get_string failed\n");
2587 goto end;
2588 }
2589 atyp = ASN1_generate_nconf(genstr, cnf);
2590 if (atyp == NULL) {
2591 NCONF_free(cnf);
2592 BIO_printf(bio_err, "ASN1_generate_nconf failed\n");
2593 goto end;
2594 }
2595 NCONF_free(cnf);
2596
2597 /* Send SSLRequest packet */
2598 BIO_write(sbio, atyp->value.sequence->data,
2599 atyp->value.sequence->length);
2600 (void)BIO_flush(sbio);
2601 ASN1_TYPE_free(atyp);
2602
2603 mbuf_len = BIO_read(sbio, mbuf, BUFSIZZ);
2604 if (mbuf_len < 0) {
2605 BIO_printf(bio_err, "BIO_read failed\n");
2606 goto end;
2607 }
2608 result = ldap_ExtendedResponse_parse(mbuf, mbuf_len);
2609 if (result < 0) {
2610 BIO_printf(bio_err, "ldap_ExtendedResponse_parse failed\n");
2611 goto shut;
2612 } else if (result > 0) {
2613 BIO_printf(bio_err, "STARTTLS failed, LDAP Result Code: %i\n",
2614 result);
2615 goto shut;
2616 }
2617 mbuf_len = 0;
2618 }
2619 break;
2620 }
2621
2622 if (early_data_file != NULL
2623 && ((SSL_get0_session(con) != NULL
2624 && SSL_SESSION_get_max_early_data(SSL_get0_session(con)) > 0)
2625 || (psksess != NULL
2626 && SSL_SESSION_get_max_early_data(psksess) > 0))) {
2627 BIO *edfile = BIO_new_file(early_data_file, "r");
2628 size_t readbytes, writtenbytes;
2629 int finish = 0;
2630
2631 if (edfile == NULL) {
2632 BIO_printf(bio_err, "Cannot open early data file\n");
2633 goto shut;
2634 }
2635
2636 while (!finish) {
2637 if (!BIO_read_ex(edfile, cbuf, BUFSIZZ, &readbytes))
2638 finish = 1;
2639
2640 while (!SSL_write_early_data(con, cbuf, readbytes, &writtenbytes)) {
2641 switch (SSL_get_error(con, 0)) {
2642 case SSL_ERROR_WANT_WRITE:
2643 case SSL_ERROR_WANT_ASYNC:
2644 case SSL_ERROR_WANT_READ:
2645 /* Just keep trying - busy waiting */
2646 continue;
2647 default:
2648 BIO_printf(bio_err, "Error writing early data\n");
2649 BIO_free(edfile);
2650 ERR_print_errors(bio_err);
2651 goto shut;
2652 }
2653 }
2654 }
2655
2656 BIO_free(edfile);
2657 }
2658
2659 for (;;) {
2660 FD_ZERO(&readfds);
2661 FD_ZERO(&writefds);
2662
2663 if (SSL_is_dtls(con) && DTLSv1_get_timeout(con, &timeout))
2664 timeoutp = &timeout;
2665 else
2666 timeoutp = NULL;
2667
2668 if (!SSL_is_init_finished(con) && SSL_total_renegotiations(con) == 0
2669 && SSL_get_key_update_type(con) == SSL_KEY_UPDATE_NONE) {
2670 in_init = 1;
2671 tty_on = 0;
2672 } else {
2673 tty_on = 1;
2674 if (in_init) {
2675 in_init = 0;
2676 if (c_brief) {
2677 BIO_puts(bio_err, "CONNECTION ESTABLISHED\n");
2678 print_ssl_summary(con);
2679 }
2680
2681 print_stuff(bio_c_out, con, full_log);
2682 if (full_log > 0)
2683 full_log--;
2684
2685 if (starttls_proto) {
2686 BIO_write(bio_err, mbuf, mbuf_len);
2687 /* We don't need to know any more */
2688 if (!reconnect)
2689 starttls_proto = PROTO_OFF;
2690 }
2691
2692 if (reconnect) {
2693 reconnect--;
2694 BIO_printf(bio_c_out,
2695 "drop connection and then reconnect\n");
2696 do_ssl_shutdown(con);
2697 SSL_set_connect_state(con);
2698 BIO_closesocket(SSL_get_fd(con));
2699 goto re_start;
2700 }
2701 }
2702 }
2703
2704 ssl_pending = read_ssl && SSL_has_pending(con);
2705
2706 if (!ssl_pending) {
2707 #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS)
2708 if (tty_on) {
2709 /*
2710 * Note that select() returns when read _would not block_,
2711 * and EOF satisfies that. To avoid a CPU-hogging loop,
2712 * set the flag so we exit.
2713 */
2714 if (read_tty && !at_eof)
2715 openssl_fdset(fileno_stdin(), &readfds);
2716 #if !defined(OPENSSL_SYS_VMS)
2717 if (write_tty)
2718 openssl_fdset(fileno_stdout(), &writefds);
2719 #endif
2720 }
2721 if (read_ssl)
2722 openssl_fdset(SSL_get_fd(con), &readfds);
2723 if (write_ssl)
2724 openssl_fdset(SSL_get_fd(con), &writefds);
2725 #else
2726 if (!tty_on || !write_tty) {
2727 if (read_ssl)
2728 openssl_fdset(SSL_get_fd(con), &readfds);
2729 if (write_ssl)
2730 openssl_fdset(SSL_get_fd(con), &writefds);
2731 }
2732 #endif
2733
2734 /*
2735 * Note: under VMS with SOCKETSHR the second parameter is
2736 * currently of type (int *) whereas under other systems it is
2737 * (void *) if you don't have a cast it will choke the compiler:
2738 * if you do have a cast then you can either go for (int *) or
2739 * (void *).
2740 */
2741 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
2742 /*
2743 * Under Windows/DOS we make the assumption that we can always
2744 * write to the tty: therefore if we need to write to the tty we
2745 * just fall through. Otherwise we timeout the select every
2746 * second and see if there are any keypresses. Note: this is a
2747 * hack, in a proper Windows application we wouldn't do this.
2748 */
2749 i = 0;
2750 if (!write_tty) {
2751 if (read_tty) {
2752 tv.tv_sec = 1;
2753 tv.tv_usec = 0;
2754 i = select(width, (void *)&readfds, (void *)&writefds,
2755 NULL, &tv);
2756 if (!i && (!has_stdin_waiting() || !read_tty))
2757 continue;
2758 } else
2759 i = select(width, (void *)&readfds, (void *)&writefds,
2760 NULL, timeoutp);
2761 }
2762 #else
2763 i = select(width, (void *)&readfds, (void *)&writefds,
2764 NULL, timeoutp);
2765 #endif
2766 if (i < 0) {
2767 BIO_printf(bio_err, "bad select %d\n",
2768 get_last_socket_error());
2769 goto shut;
2770 }
2771 }
2772
2773 if (SSL_is_dtls(con) && DTLSv1_handle_timeout(con) > 0)
2774 BIO_printf(bio_err, "TIMEOUT occurred\n");
2775
2776 if (!ssl_pending && FD_ISSET(SSL_get_fd(con), &writefds)) {
2777 k = SSL_write(con, &(cbuf[cbuf_off]), (unsigned int)cbuf_len);
2778 switch (SSL_get_error(con, k)) {
2779 case SSL_ERROR_NONE:
2780 cbuf_off += k;
2781 cbuf_len -= k;
2782 if (k <= 0)
2783 goto end;
2784 /* we have done a write(con,NULL,0); */
2785 if (cbuf_len <= 0) {
2786 read_tty = 1;
2787 write_ssl = 0;
2788 } else { /* if (cbuf_len > 0) */
2789
2790 read_tty = 0;
2791 write_ssl = 1;
2792 }
2793 break;
2794 case SSL_ERROR_WANT_WRITE:
2795 BIO_printf(bio_c_out, "write W BLOCK\n");
2796 write_ssl = 1;
2797 read_tty = 0;
2798 break;
2799 case SSL_ERROR_WANT_ASYNC:
2800 BIO_printf(bio_c_out, "write A BLOCK\n");
2801 wait_for_async(con);
2802 write_ssl = 1;
2803 read_tty = 0;
2804 break;
2805 case SSL_ERROR_WANT_READ:
2806 BIO_printf(bio_c_out, "write R BLOCK\n");
2807 write_tty = 0;
2808 read_ssl = 1;
2809 write_ssl = 0;
2810 break;
2811 case SSL_ERROR_WANT_X509_LOOKUP:
2812 BIO_printf(bio_c_out, "write X BLOCK\n");
2813 break;
2814 case SSL_ERROR_ZERO_RETURN:
2815 if (cbuf_len != 0) {
2816 BIO_printf(bio_c_out, "shutdown\n");
2817 ret = 0;
2818 goto shut;
2819 } else {
2820 read_tty = 1;
2821 write_ssl = 0;
2822 break;
2823 }
2824
2825 case SSL_ERROR_SYSCALL:
2826 if ((k != 0) || (cbuf_len != 0)) {
2827 BIO_printf(bio_err, "write:errno=%d\n",
2828 get_last_socket_error());
2829 goto shut;
2830 } else {
2831 read_tty = 1;
2832 write_ssl = 0;
2833 }
2834 break;
2835 case SSL_ERROR_WANT_ASYNC_JOB:
2836 /* This shouldn't ever happen in s_client - treat as an error */
2837 case SSL_ERROR_SSL:
2838 ERR_print_errors(bio_err);
2839 goto shut;
2840 }
2841 }
2842 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_VMS)
2843 /* Assume Windows/DOS/BeOS can always write */
2844 else if (!ssl_pending && write_tty)
2845 #else
2846 else if (!ssl_pending && FD_ISSET(fileno_stdout(), &writefds))
2847 #endif
2848 {
2849 #ifdef CHARSET_EBCDIC
2850 ascii2ebcdic(&(sbuf[sbuf_off]), &(sbuf[sbuf_off]), sbuf_len);
2851 #endif
2852 i = raw_write_stdout(&(sbuf[sbuf_off]), sbuf_len);
2853
2854 if (i <= 0) {
2855 BIO_printf(bio_c_out, "DONE\n");
2856 ret = 0;
2857 goto shut;
2858 }
2859
2860 sbuf_len -= i;
2861 sbuf_off += i;
2862 if (sbuf_len <= 0) {
2863 read_ssl = 1;
2864 write_tty = 0;
2865 }
2866 } else if (ssl_pending || FD_ISSET(SSL_get_fd(con), &readfds)) {
2867 #ifdef RENEG
2868 {
2869 static int iiii;
2870 if (++iiii == 52) {
2871 SSL_renegotiate(con);
2872 iiii = 0;
2873 }
2874 }
2875 #endif
2876 k = SSL_read(con, sbuf, 1024 /* BUFSIZZ */ );
2877
2878 switch (SSL_get_error(con, k)) {
2879 case SSL_ERROR_NONE:
2880 if (k <= 0)
2881 goto end;
2882 sbuf_off = 0;
2883 sbuf_len = k;
2884
2885 read_ssl = 0;
2886 write_tty = 1;
2887 break;
2888 case SSL_ERROR_WANT_ASYNC:
2889 BIO_printf(bio_c_out, "read A BLOCK\n");
2890 wait_for_async(con);
2891 write_tty = 0;
2892 read_ssl = 1;
2893 if ((read_tty == 0) && (write_ssl == 0))
2894 write_ssl = 1;
2895 break;
2896 case SSL_ERROR_WANT_WRITE:
2897 BIO_printf(bio_c_out, "read W BLOCK\n");
2898 write_ssl = 1;
2899 read_tty = 0;
2900 break;
2901 case SSL_ERROR_WANT_READ:
2902 BIO_printf(bio_c_out, "read R BLOCK\n");
2903 write_tty = 0;
2904 read_ssl = 1;
2905 if ((read_tty == 0) && (write_ssl == 0))
2906 write_ssl = 1;
2907 break;
2908 case SSL_ERROR_WANT_X509_LOOKUP:
2909 BIO_printf(bio_c_out, "read X BLOCK\n");
2910 break;
2911 case SSL_ERROR_SYSCALL:
2912 ret = get_last_socket_error();
2913 if (c_brief)
2914 BIO_puts(bio_err, "CONNECTION CLOSED BY SERVER\n");
2915 else
2916 BIO_printf(bio_err, "read:errno=%d\n", ret);
2917 goto shut;
2918 case SSL_ERROR_ZERO_RETURN:
2919 BIO_printf(bio_c_out, "closed\n");
2920 ret = 0;
2921 goto shut;
2922 case SSL_ERROR_WANT_ASYNC_JOB:
2923 /* This shouldn't ever happen in s_client. Treat as an error */
2924 case SSL_ERROR_SSL:
2925 ERR_print_errors(bio_err);
2926 goto shut;
2927 }
2928 }
2929 /* OPENSSL_SYS_MSDOS includes OPENSSL_SYS_WINDOWS */
2930 #if defined(OPENSSL_SYS_MSDOS)
2931 else if (has_stdin_waiting())
2932 #else
2933 else if (FD_ISSET(fileno_stdin(), &readfds))
2934 #endif
2935 {
2936 if (crlf) {
2937 int j, lf_num;
2938
2939 i = raw_read_stdin(cbuf, BUFSIZZ / 2);
2940 lf_num = 0;
2941 /* both loops are skipped when i <= 0 */
2942 for (j = 0; j < i; j++)
2943 if (cbuf[j] == '\n')
2944 lf_num++;
2945 for (j = i - 1; j >= 0; j--) {
2946 cbuf[j + lf_num] = cbuf[j];
2947 if (cbuf[j] == '\n') {
2948 lf_num--;
2949 i++;
2950 cbuf[j + lf_num] = '\r';
2951 }
2952 }
2953 assert(lf_num == 0);
2954 } else
2955 i = raw_read_stdin(cbuf, BUFSIZZ);
2956 #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS)
2957 if (i == 0)
2958 at_eof = 1;
2959 #endif
2960
2961 if ((!c_ign_eof) && ((i <= 0) || (cbuf[0] == 'Q' && cmdletters))) {
2962 BIO_printf(bio_err, "DONE\n");
2963 ret = 0;
2964 goto shut;
2965 }
2966
2967 if ((!c_ign_eof) && (cbuf[0] == 'R' && cmdletters)) {
2968 BIO_printf(bio_err, "RENEGOTIATING\n");
2969 SSL_renegotiate(con);
2970 cbuf_len = 0;
2971 } else if (!c_ign_eof && (cbuf[0] == 'K' || cbuf[0] == 'k' )
2972 && cmdletters) {
2973 BIO_printf(bio_err, "KEYUPDATE\n");
2974 SSL_key_update(con,
2975 cbuf[0] == 'K' ? SSL_KEY_UPDATE_REQUESTED
2976 : SSL_KEY_UPDATE_NOT_REQUESTED);
2977 cbuf_len = 0;
2978 } else {
2979 cbuf_len = i;
2980 cbuf_off = 0;
2981 #ifdef CHARSET_EBCDIC
2982 ebcdic2ascii(cbuf, cbuf, i);
2983 #endif
2984 }
2985
2986 write_ssl = 1;
2987 read_tty = 0;
2988 }
2989 }
2990
2991 shut:
2992 if (in_init)
2993 print_stuff(bio_c_out, con, full_log);
2994 do_ssl_shutdown(con);
2995
2996 /*
2997 * If we ended with an alert being sent, but still with data in the
2998 * network buffer to be read, then calling BIO_closesocket() will
2999 * result in a TCP-RST being sent. On some platforms (notably
3000 * Windows) then this will result in the peer immediately abandoning
3001 * the connection including any buffered alert data before it has
3002 * had a chance to be read. Shutting down the sending side first,
3003 * and then closing the socket sends TCP-FIN first followed by
3004 * TCP-RST. This seems to allow the peer to read the alert data.
3005 */
3006 shutdown(SSL_get_fd(con), 1); /* SHUT_WR */
3007 /*
3008 * We just said we have nothing else to say, but it doesn't mean that
3009 * the other side has nothing. It's even recommended to consume incoming
3010 * data. [In testing context this ensures that alerts are passed on...]
3011 */
3012 timeout.tv_sec = 0;
3013 timeout.tv_usec = 500000; /* some extreme round-trip */
3014 do {
3015 FD_ZERO(&readfds);
3016 openssl_fdset(sock, &readfds);
3017 } while (select(sock + 1, &readfds, NULL, NULL, &timeout) > 0
3018 && BIO_read(sbio, sbuf, BUFSIZZ) > 0);
3019
3020 BIO_closesocket(SSL_get_fd(con));
3021 end:
3022 if (con != NULL) {
3023 if (prexit != 0)
3024 print_stuff(bio_c_out, con, 1);
3025 SSL_free(con);
3026 }
3027 SSL_SESSION_free(psksess);
3028 #if !defined(OPENSSL_NO_NEXTPROTONEG)
3029 OPENSSL_free(next_proto.data);
3030 #endif
3031 SSL_CTX_free(ctx);
3032 set_keylog_file(NULL, NULL);
3033 X509_free(cert);
3034 sk_X509_CRL_pop_free(crls, X509_CRL_free);
3035 EVP_PKEY_free(key);
3036 sk_X509_pop_free(chain, X509_free);
3037 OPENSSL_free(pass);
3038 #ifndef OPENSSL_NO_SRP
3039 OPENSSL_free(srp_arg.srppassin);
3040 #endif
3041 OPENSSL_free(connectstr);
3042 OPENSSL_free(bindstr);
3043 OPENSSL_free(host);
3044 OPENSSL_free(port);
3045 OPENSSL_free(thost);
3046 OPENSSL_free(tport);
3047 X509_VERIFY_PARAM_free(vpm);
3048 ssl_excert_free(exc);
3049 sk_OPENSSL_STRING_free(ssl_args);
3050 sk_OPENSSL_STRING_free(dane_tlsa_rrset);
3051 SSL_CONF_CTX_free(cctx);
3052 OPENSSL_clear_free(cbuf, BUFSIZZ);
3053 OPENSSL_clear_free(sbuf, BUFSIZZ);
3054 OPENSSL_clear_free(mbuf, BUFSIZZ);
3055 clear_free(proxypass);
3056 release_engine(e);
3057 BIO_free(bio_c_out);
3058 bio_c_out = NULL;
3059 BIO_free(bio_c_msg);
3060 bio_c_msg = NULL;
3061 return ret;
3062 }
3063
3064 static void print_stuff(BIO *bio, SSL *s, int full)
3065 {
3066 X509 *peer = NULL;
3067 STACK_OF(X509) *sk;
3068 const SSL_CIPHER *c;
3069 EVP_PKEY *public_key;
3070 int i, istls13 = (SSL_version(s) == TLS1_3_VERSION);
3071 long verify_result;
3072 #ifndef OPENSSL_NO_COMP
3073 const COMP_METHOD *comp, *expansion;
3074 #endif
3075 unsigned char *exportedkeymat;
3076 #ifndef OPENSSL_NO_CT
3077 const SSL_CTX *ctx = SSL_get_SSL_CTX(s);
3078 #endif
3079
3080 if (full) {
3081 int got_a_chain = 0;
3082
3083 sk = SSL_get_peer_cert_chain(s);
3084 if (sk != NULL) {
3085 got_a_chain = 1;
3086
3087 BIO_printf(bio, "---\nCertificate chain\n");
3088 for (i = 0; i < sk_X509_num(sk); i++) {
3089 BIO_printf(bio, "%2d s:", i);
3090 X509_NAME_print_ex(bio, X509_get_subject_name(sk_X509_value(sk, i)), 0, get_nameopt());
3091 BIO_puts(bio, "\n");
3092 BIO_printf(bio, " i:");
3093 X509_NAME_print_ex(bio, X509_get_issuer_name(sk_X509_value(sk, i)), 0, get_nameopt());
3094 BIO_puts(bio, "\n");
3095 public_key = X509_get_pubkey(sk_X509_value(sk, i));
3096 if (public_key != NULL) {
3097 BIO_printf(bio, " a:PKEY: %s, %d (bit); sigalg: %s\n",
3098 OBJ_nid2sn(EVP_PKEY_get_base_id(public_key)),
3099 EVP_PKEY_get_bits(public_key),
3100 OBJ_nid2sn(X509_get_signature_nid(sk_X509_value(sk, i))));
3101 EVP_PKEY_free(public_key);
3102 }
3103 BIO_printf(bio, " v:NotBefore: ");
3104 ASN1_TIME_print(bio, X509_get0_notBefore(sk_X509_value(sk, i)));
3105 BIO_printf(bio, "; NotAfter: ");
3106 ASN1_TIME_print(bio, X509_get0_notAfter(sk_X509_value(sk, i)));
3107 BIO_puts(bio, "\n");
3108 if (c_showcerts)
3109 PEM_write_bio_X509(bio, sk_X509_value(sk, i));
3110 }
3111 }
3112
3113 BIO_printf(bio, "---\n");
3114 peer = SSL_get0_peer_certificate(s);
3115 if (peer != NULL) {
3116 BIO_printf(bio, "Server certificate\n");
3117
3118 /* Redundant if we showed the whole chain */
3119 if (!(c_showcerts && got_a_chain))
3120 PEM_write_bio_X509(bio, peer);
3121 dump_cert_text(bio, peer);
3122 } else {
3123 BIO_printf(bio, "no peer certificate available\n");
3124 }
3125 print_ca_names(bio, s);
3126
3127 ssl_print_sigalgs(bio, s);
3128 ssl_print_tmp_key(bio, s);
3129
3130 #ifndef OPENSSL_NO_CT
3131 /*
3132 * When the SSL session is anonymous, or resumed via an abbreviated
3133 * handshake, no SCTs are provided as part of the handshake. While in
3134 * a resumed session SCTs may be present in the session's certificate,
3135 * no callbacks are invoked to revalidate these, and in any case that
3136 * set of SCTs may be incomplete. Thus it makes little sense to
3137 * attempt to display SCTs from a resumed session's certificate, and of
3138 * course none are associated with an anonymous peer.
3139 */
3140 if (peer != NULL && !SSL_session_reused(s) && SSL_ct_is_enabled(s)) {
3141 const STACK_OF(SCT) *scts = SSL_get0_peer_scts(s);
3142 int sct_count = scts != NULL ? sk_SCT_num(scts) : 0;
3143
3144 BIO_printf(bio, "---\nSCTs present (%i)\n", sct_count);
3145 if (sct_count > 0) {
3146 const CTLOG_STORE *log_store = SSL_CTX_get0_ctlog_store(ctx);
3147
3148 BIO_printf(bio, "---\n");
3149 for (i = 0; i < sct_count; ++i) {
3150 SCT *sct = sk_SCT_value(scts, i);
3151
3152 BIO_printf(bio, "SCT validation status: %s\n",
3153 SCT_validation_status_string(sct));
3154 SCT_print(sct, bio, 0, log_store);
3155 if (i < sct_count - 1)
3156 BIO_printf(bio, "\n---\n");
3157 }
3158 BIO_printf(bio, "\n");
3159 }
3160 }
3161 #endif
3162
3163 BIO_printf(bio,
3164 "---\nSSL handshake has read %ju bytes "
3165 "and written %ju bytes\n",
3166 BIO_number_read(SSL_get_rbio(s)),
3167 BIO_number_written(SSL_get_wbio(s)));
3168 }
3169 print_verify_detail(s, bio);
3170 BIO_printf(bio, (SSL_session_reused(s) ? "---\nReused, " : "---\nNew, "));
3171 c = SSL_get_current_cipher(s);
3172 BIO_printf(bio, "%s, Cipher is %s\n",
3173 SSL_CIPHER_get_version(c), SSL_CIPHER_get_name(c));
3174 if (peer != NULL) {
3175 EVP_PKEY *pktmp;
3176
3177 pktmp = X509_get0_pubkey(peer);
3178 BIO_printf(bio, "Server public key is %d bit\n",
3179 EVP_PKEY_get_bits(pktmp));
3180 }
3181 BIO_printf(bio, "Secure Renegotiation IS%s supported\n",
3182 SSL_get_secure_renegotiation_support(s) ? "" : " NOT");
3183 #ifndef OPENSSL_NO_COMP
3184 comp = SSL_get_current_compression(s);
3185 expansion = SSL_get_current_expansion(s);
3186 BIO_printf(bio, "Compression: %s\n",
3187 comp ? SSL_COMP_get_name(comp) : "NONE");
3188 BIO_printf(bio, "Expansion: %s\n",
3189 expansion ? SSL_COMP_get_name(expansion) : "NONE");
3190 #endif
3191 #ifndef OPENSSL_NO_KTLS
3192 if (BIO_get_ktls_send(SSL_get_wbio(s)))
3193 BIO_printf(bio_err, "Using Kernel TLS for sending\n");
3194 if (BIO_get_ktls_recv(SSL_get_rbio(s)))
3195 BIO_printf(bio_err, "Using Kernel TLS for receiving\n");
3196 #endif
3197
3198 if (OSSL_TRACE_ENABLED(TLS)) {
3199 /* Print out local port of connection: useful for debugging */
3200 int sock;
3201 union BIO_sock_info_u info;
3202
3203 sock = SSL_get_fd(s);
3204 if ((info.addr = BIO_ADDR_new()) != NULL
3205 && BIO_sock_info(sock, BIO_SOCK_INFO_ADDRESS, &info)) {
3206 BIO_printf(bio_c_out, "LOCAL PORT is %u\n",
3207 ntohs(BIO_ADDR_rawport(info.addr)));
3208 }
3209 BIO_ADDR_free(info.addr);
3210 }
3211
3212 #if !defined(OPENSSL_NO_NEXTPROTONEG)
3213 if (next_proto.status != -1) {
3214 const unsigned char *proto;
3215 unsigned int proto_len;
3216 SSL_get0_next_proto_negotiated(s, &proto, &proto_len);
3217 BIO_printf(bio, "Next protocol: (%d) ", next_proto.status);
3218 BIO_write(bio, proto, proto_len);
3219 BIO_write(bio, "\n", 1);
3220 }
3221 #endif
3222 {
3223 const unsigned char *proto;
3224 unsigned int proto_len;
3225 SSL_get0_alpn_selected(s, &proto, &proto_len);
3226 if (proto_len > 0) {
3227 BIO_printf(bio, "ALPN protocol: ");
3228 BIO_write(bio, proto, proto_len);
3229 BIO_write(bio, "\n", 1);
3230 } else
3231 BIO_printf(bio, "No ALPN negotiated\n");
3232 }
3233
3234 #ifndef OPENSSL_NO_SRTP
3235 {
3236 SRTP_PROTECTION_PROFILE *srtp_profile =
3237 SSL_get_selected_srtp_profile(s);
3238
3239 if (srtp_profile)
3240 BIO_printf(bio, "SRTP Extension negotiated, profile=%s\n",
3241 srtp_profile->name);
3242 }
3243 #endif
3244
3245 if (istls13) {
3246 switch (SSL_get_early_data_status(s)) {
3247 case SSL_EARLY_DATA_NOT_SENT:
3248 BIO_printf(bio, "Early data was not sent\n");
3249 break;
3250
3251 case SSL_EARLY_DATA_REJECTED:
3252 BIO_printf(bio, "Early data was rejected\n");
3253 break;
3254
3255 case SSL_EARLY_DATA_ACCEPTED:
3256 BIO_printf(bio, "Early data was accepted\n");
3257 break;
3258
3259 }
3260
3261 /*
3262 * We also print the verify results when we dump session information,
3263 * but in TLSv1.3 we may not get that right away (or at all) depending
3264 * on when we get a NewSessionTicket. Therefore we print it now as well.
3265 */
3266 verify_result = SSL_get_verify_result(s);
3267 BIO_printf(bio, "Verify return code: %ld (%s)\n", verify_result,
3268 X509_verify_cert_error_string(verify_result));
3269 } else {
3270 /* In TLSv1.3 we do this on arrival of a NewSessionTicket */
3271 SSL_SESSION_print(bio, SSL_get_session(s));
3272 }
3273
3274 if (SSL_get_session(s) != NULL && keymatexportlabel != NULL) {
3275 BIO_printf(bio, "Keying material exporter:\n");
3276 BIO_printf(bio, " Label: '%s'\n", keymatexportlabel);
3277 BIO_printf(bio, " Length: %i bytes\n", keymatexportlen);
3278 exportedkeymat = app_malloc(keymatexportlen, "export key");
3279 if (!SSL_export_keying_material(s, exportedkeymat,
3280 keymatexportlen,
3281 keymatexportlabel,
3282 strlen(keymatexportlabel),
3283 NULL, 0, 0)) {
3284 BIO_printf(bio, " Error\n");
3285 } else {
3286 BIO_printf(bio, " Keying material: ");
3287 for (i = 0; i < keymatexportlen; i++)
3288 BIO_printf(bio, "%02X", exportedkeymat[i]);
3289 BIO_printf(bio, "\n");
3290 }
3291 OPENSSL_free(exportedkeymat);
3292 }
3293 BIO_printf(bio, "---\n");
3294 /* flush, or debugging output gets mixed with http response */
3295 (void)BIO_flush(bio);
3296 }
3297
3298 # ifndef OPENSSL_NO_OCSP
3299 static int ocsp_resp_cb(SSL *s, void *arg)
3300 {
3301 const unsigned char *p;
3302 int len;
3303 OCSP_RESPONSE *rsp;
3304 len = SSL_get_tlsext_status_ocsp_resp(s, &p);
3305 BIO_puts(arg, "OCSP response: ");
3306 if (p == NULL) {
3307 BIO_puts(arg, "no response sent\n");
3308 return 1;
3309 }
3310 rsp = d2i_OCSP_RESPONSE(NULL, &p, len);
3311 if (rsp == NULL) {
3312 BIO_puts(arg, "response parse error\n");
3313 BIO_dump_indent(arg, (char *)p, len, 4);
3314 return 0;
3315 }
3316 BIO_puts(arg, "\n======================================\n");
3317 OCSP_RESPONSE_print(arg, rsp, 0);
3318 BIO_puts(arg, "======================================\n");
3319 OCSP_RESPONSE_free(rsp);
3320 return 1;
3321 }
3322 # endif
3323
3324 static int ldap_ExtendedResponse_parse(const char *buf, long rem)
3325 {
3326 const unsigned char *cur, *end;
3327 long len;
3328 int tag, xclass, inf, ret = -1;
3329
3330 cur = (const unsigned char *)buf;
3331 end = cur + rem;
3332
3333 /*
3334 * From RFC 4511:
3335 *
3336 * LDAPMessage ::= SEQUENCE {
3337 * messageID MessageID,
3338 * protocolOp CHOICE {
3339 * ...
3340 * extendedResp ExtendedResponse,
3341 * ... },
3342 * controls [0] Controls OPTIONAL }
3343 *
3344 * ExtendedResponse ::= [APPLICATION 24] SEQUENCE {
3345 * COMPONENTS OF LDAPResult,
3346 * responseName [10] LDAPOID OPTIONAL,
3347 * responseValue [11] OCTET STRING OPTIONAL }
3348 *
3349 * LDAPResult ::= SEQUENCE {
3350 * resultCode ENUMERATED {
3351 * success (0),
3352 * ...
3353 * other (80),
3354 * ... },
3355 * matchedDN LDAPDN,
3356 * diagnosticMessage LDAPString,
3357 * referral [3] Referral OPTIONAL }
3358 */
3359
3360 /* pull SEQUENCE */
3361 inf = ASN1_get_object(&cur, &len, &tag, &xclass, rem);
3362 if (inf != V_ASN1_CONSTRUCTED || tag != V_ASN1_SEQUENCE ||
3363 (rem = end - cur, len > rem)) {
3364 BIO_printf(bio_err, "Unexpected LDAP response\n");
3365 goto end;
3366 }
3367
3368 rem = len; /* ensure that we don't overstep the SEQUENCE */
3369
3370 /* pull MessageID */
3371 inf = ASN1_get_object(&cur, &len, &tag, &xclass, rem);
3372 if (inf != V_ASN1_UNIVERSAL || tag != V_ASN1_INTEGER ||
3373 (rem = end - cur, len > rem)) {
3374 BIO_printf(bio_err, "No MessageID\n");
3375 goto end;
3376 }
3377
3378 cur += len; /* shall we check for MessageId match or just skip? */
3379
3380 /* pull [APPLICATION 24] */
3381 rem = end - cur;
3382 inf = ASN1_get_object(&cur, &len, &tag, &xclass, rem);
3383 if (inf != V_ASN1_CONSTRUCTED || xclass != V_ASN1_APPLICATION ||
3384 tag != 24) {
3385 BIO_printf(bio_err, "Not ExtendedResponse\n");
3386 goto end;
3387 }
3388
3389 /* pull resultCode */
3390 rem = end - cur;
3391 inf = ASN1_get_object(&cur, &len, &tag, &xclass, rem);
3392 if (inf != V_ASN1_UNIVERSAL || tag != V_ASN1_ENUMERATED || len == 0 ||
3393 (rem = end - cur, len > rem)) {
3394 BIO_printf(bio_err, "Not LDAPResult\n");
3395 goto end;
3396 }
3397
3398 /* len should always be one, but just in case... */
3399 for (ret = 0, inf = 0; inf < len; inf++) {
3400 ret <<= 8;
3401 ret |= cur[inf];
3402 }
3403 /* There is more data, but we don't care... */
3404 end:
3405 return ret;
3406 }
3407
3408 /*
3409 * Host dNS Name verifier: used for checking that the hostname is in dNS format
3410 * before setting it as SNI
3411 */
3412 static int is_dNS_name(const char *host)
3413 {
3414 const size_t MAX_LABEL_LENGTH = 63;
3415 size_t i;
3416 int isdnsname = 0;
3417 size_t length = strlen(host);
3418 size_t label_length = 0;
3419 int all_numeric = 1;
3420
3421 /*
3422 * Deviation from strict DNS name syntax, also check names with '_'
3423 * Check DNS name syntax, any '-' or '.' must be internal,
3424 * and on either side of each '.' we can't have a '-' or '.'.
3425 *
3426 * If the name has just one label, we don't consider it a DNS name.
3427 */
3428 for (i = 0; i < length && label_length < MAX_LABEL_LENGTH; ++i) {
3429 char c = host[i];
3430
3431 if ((c >= 'a' && c <= 'z')
3432 || (c >= 'A' && c <= 'Z')
3433 || c == '_') {
3434 label_length += 1;
3435 all_numeric = 0;
3436 continue;
3437 }
3438
3439 if (c >= '0' && c <= '9') {
3440 label_length += 1;
3441 continue;
3442 }
3443
3444 /* Dot and hyphen cannot be first or last. */
3445 if (i > 0 && i < length - 1) {
3446 if (c == '-') {
3447 label_length += 1;
3448 continue;
3449 }
3450 /*
3451 * Next to a dot the preceding and following characters must not be
3452 * another dot or a hyphen. Otherwise, record that the name is
3453 * plausible, since it has two or more labels.
3454 */
3455 if (c == '.'
3456 && host[i + 1] != '.'
3457 && host[i - 1] != '-'
3458 && host[i + 1] != '-') {
3459 label_length = 0;
3460 isdnsname = 1;
3461 continue;
3462 }
3463 }
3464 isdnsname = 0;
3465 break;
3466 }
3467
3468 /* dNS name must not be all numeric and labels must be shorter than 64 characters. */
3469 isdnsname &= !all_numeric && !(label_length == MAX_LABEL_LENGTH);
3470
3471 return isdnsname;
3472 }
3473 #endif /* OPENSSL_NO_SOCK */
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