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source: vbox/trunk/src/libs/openssl-3.1.0/apps/s_client.c@ 100111

Last change on this file since 100111 was 99366, checked in by vboxsync, 21 months ago

openssl-3.1.0: Applied and adjusted our OpenSSL changes to 3.0.7. bugref:10418
File size: 114.9 KB
Line 
1/*
2 * Copyright 1995-2022 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 "internal/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#include "internal/nelem.h"
19
20#ifndef OPENSSL_NO_SOCK
21
22/*
23 * With IPv6, it looks like Digital has mixed up the proper order of
24 * recursive header file inclusion, resulting in the compiler complaining
25 * that u_int isn't defined, but only if _POSIX_C_SOURCE is defined, which is
26 * needed to have fileno() declared correctly... So let's define u_int
27 */
28#if defined(OPENSSL_SYS_VMS_DECC) && !defined(__U_INT)
29# define __U_INT
30typedef unsigned int u_int;
31#endif
32
33#include "apps.h"
34#include "progs.h"
35#include <openssl/x509.h>
36#include <openssl/ssl.h>
37#include <openssl/err.h>
38#include <openssl/pem.h>
39#include <openssl/rand.h>
40#include <openssl/ocsp.h>
41#include <openssl/bn.h>
42#include <openssl/trace.h>
43#include <openssl/async.h>
44#ifndef OPENSSL_NO_CT
45# include <openssl/ct.h>
46#endif
47#include "s_apps.h"
48#include "timeouts.h"
49#include "internal/sockets.h"
50
51#if defined(__has_feature)
52# if __has_feature(memory_sanitizer)
53# include <sanitizer/msan_interface.h>
54# endif
55#endif
56
57#undef BUFSIZZ
58#define BUFSIZZ 1024*8
59#define S_CLIENT_IRC_READ_TIMEOUT 8
60
61static char *prog;
62static int c_debug = 0;
63static int c_showcerts = 0;
64static char *keymatexportlabel = NULL;
65static int keymatexportlen = 20;
66static BIO *bio_c_out = NULL;
67static int c_quiet = 0;
68static char *sess_out = NULL;
69static SSL_SESSION *psksess = NULL;
70
71static void print_stuff(BIO *berr, SSL *con, int full);
72#ifndef OPENSSL_NO_OCSP
73static int ocsp_resp_cb(SSL *s, void *arg);
74#endif
75static int ldap_ExtendedResponse_parse(const char *buf, long rem);
76static int is_dNS_name(const char *host);
77
78static int saved_errno;
79
80static void save_errno(void)
81{
82 saved_errno = errno;
83 errno = 0;
84}
85
86static int restore_errno(void)
87{
88 int ret = errno;
89 errno = saved_errno;
90 return ret;
91}
92
93/* Default PSK identity and key */
94static char *psk_identity = "Client_identity";
95
96#ifndef OPENSSL_NO_PSK
97static unsigned int psk_client_cb(SSL *ssl, const char *hint, char *identity,
98 unsigned int max_identity_len,
99 unsigned char *psk,
100 unsigned int max_psk_len)
101{
102 int ret;
103 long key_len;
104 unsigned char *key;
105
106 if (c_debug)
107 BIO_printf(bio_c_out, "psk_client_cb\n");
108 if (!hint) {
109 /* no ServerKeyExchange message */
110 if (c_debug)
111 BIO_printf(bio_c_out,
112 "NULL received PSK identity hint, continuing anyway\n");
113 } else if (c_debug) {
114 BIO_printf(bio_c_out, "Received PSK identity hint '%s'\n", hint);
115 }
116
117 /*
118 * lookup PSK identity and PSK key based on the given identity hint here
119 */
120 ret = BIO_snprintf(identity, max_identity_len, "%s", psk_identity);
121 if (ret < 0 || (unsigned int)ret > max_identity_len)
122 goto out_err;
123 if (c_debug)
124 BIO_printf(bio_c_out, "created identity '%s' len=%d\n", identity,
125 ret);
126
127 /* convert the PSK key to binary */
128 key = OPENSSL_hexstr2buf(psk_key, &key_len);
129 if (key == NULL) {
130 BIO_printf(bio_err, "Could not convert PSK key '%s' to buffer\n",
131 psk_key);
132 return 0;
133 }
134 if (max_psk_len > INT_MAX || key_len > (long)max_psk_len) {
135 BIO_printf(bio_err,
136 "psk buffer of callback is too small (%d) for key (%ld)\n",
137 max_psk_len, key_len);
138 OPENSSL_free(key);
139 return 0;
140 }
141
142 memcpy(psk, key, key_len);
143 OPENSSL_free(key);
144
145 if (c_debug)
146 BIO_printf(bio_c_out, "created PSK len=%ld\n", key_len);
147
148 return key_len;
149 out_err:
150 if (c_debug)
151 BIO_printf(bio_err, "Error in PSK client callback\n");
152 return 0;
153}
154#endif
155
156const unsigned char tls13_aes128gcmsha256_id[] = { 0x13, 0x01 };
157const unsigned char tls13_aes256gcmsha384_id[] = { 0x13, 0x02 };
158
159static int psk_use_session_cb(SSL *s, const EVP_MD *md,
160 const unsigned char **id, size_t *idlen,
161 SSL_SESSION **sess)
162{
163 SSL_SESSION *usesess = NULL;
164 const SSL_CIPHER *cipher = NULL;
165
166 if (psksess != NULL) {
167 SSL_SESSION_up_ref(psksess);
168 usesess = psksess;
169 } else {
170 long key_len;
171 unsigned char *key = OPENSSL_hexstr2buf(psk_key, &key_len);
172
173 if (key == NULL) {
174 BIO_printf(bio_err, "Could not convert PSK key '%s' to buffer\n",
175 psk_key);
176 return 0;
177 }
178
179 /* We default to SHA-256 */
180 cipher = SSL_CIPHER_find(s, tls13_aes128gcmsha256_id);
181 if (cipher == NULL) {
182 BIO_printf(bio_err, "Error finding suitable ciphersuite\n");
183 OPENSSL_free(key);
184 return 0;
185 }
186
187 usesess = SSL_SESSION_new();
188 if (usesess == NULL
189 || !SSL_SESSION_set1_master_key(usesess, key, key_len)
190 || !SSL_SESSION_set_cipher(usesess, cipher)
191 || !SSL_SESSION_set_protocol_version(usesess, TLS1_3_VERSION)) {
192 OPENSSL_free(key);
193 goto err;
194 }
195 OPENSSL_free(key);
196 }
197
198 cipher = SSL_SESSION_get0_cipher(usesess);
199 if (cipher == NULL)
200 goto err;
201
202 if (md != NULL && SSL_CIPHER_get_handshake_digest(cipher) != md) {
203 /* PSK not usable, ignore it */
204 *id = NULL;
205 *idlen = 0;
206 *sess = NULL;
207 SSL_SESSION_free(usesess);
208 } else {
209 *sess = usesess;
210 *id = (unsigned char *)psk_identity;
211 *idlen = strlen(psk_identity);
212 }
213
214 return 1;
215
216 err:
217 SSL_SESSION_free(usesess);
218 return 0;
219}
220
221/* This is a context that we pass to callbacks */
222typedef struct tlsextctx_st {
223 BIO *biodebug;
224 int ack;
225} tlsextctx;
226
227static int ssl_servername_cb(SSL *s, int *ad, void *arg)
228{
229 tlsextctx *p = (tlsextctx *) arg;
230 const char *hn = SSL_get_servername(s, TLSEXT_NAMETYPE_host_name);
231 if (SSL_get_servername_type(s) != -1)
232 p->ack = !SSL_session_reused(s) && hn != NULL;
233 else
234 BIO_printf(bio_err, "Can't use SSL_get_servername\n");
235
236 return SSL_TLSEXT_ERR_OK;
237}
238
239#ifndef OPENSSL_NO_NEXTPROTONEG
240/* This the context that we pass to next_proto_cb */
241typedef struct tlsextnextprotoctx_st {
242 unsigned char *data;
243 size_t len;
244 int status;
245} tlsextnextprotoctx;
246
247static tlsextnextprotoctx next_proto;
248
249static int next_proto_cb(SSL *s, unsigned char **out, unsigned char *outlen,
250 const unsigned char *in, unsigned int inlen,
251 void *arg)
252{
253 tlsextnextprotoctx *ctx = arg;
254
255 if (!c_quiet) {
256 /* We can assume that |in| is syntactically valid. */
257 unsigned i;
258 BIO_printf(bio_c_out, "Protocols advertised by server: ");
259 for (i = 0; i < inlen;) {
260 if (i)
261 BIO_write(bio_c_out, ", ", 2);
262 BIO_write(bio_c_out, &in[i + 1], in[i]);
263 i += in[i] + 1;
264 }
265 BIO_write(bio_c_out, "\n", 1);
266 }
267
268 ctx->status =
269 SSL_select_next_proto(out, outlen, in, inlen, ctx->data, ctx->len);
270 return SSL_TLSEXT_ERR_OK;
271}
272#endif /* ndef OPENSSL_NO_NEXTPROTONEG */
273
274static int serverinfo_cli_parse_cb(SSL *s, unsigned int ext_type,
275 const unsigned char *in, size_t inlen,
276 int *al, void *arg)
277{
278 char pem_name[100];
279 unsigned char ext_buf[4 + 65536];
280
281 /* Reconstruct the type/len fields prior to extension data */
282 inlen &= 0xffff; /* for formal memcmpy correctness */
283 ext_buf[0] = (unsigned char)(ext_type >> 8);
284 ext_buf[1] = (unsigned char)(ext_type);
285 ext_buf[2] = (unsigned char)(inlen >> 8);
286 ext_buf[3] = (unsigned char)(inlen);
287 memcpy(ext_buf + 4, in, inlen);
288
289 BIO_snprintf(pem_name, sizeof(pem_name), "SERVERINFO FOR EXTENSION %d",
290 ext_type);
291 PEM_write_bio(bio_c_out, pem_name, "", ext_buf, 4 + inlen);
292 return 1;
293}
294
295/*
296 * Hex decoder that tolerates optional whitespace. Returns number of bytes
297 * produced, advances inptr to end of input string.
298 */
299static ossl_ssize_t hexdecode(const char **inptr, void *result)
300{
301 unsigned char **out = (unsigned char **)result;
302 const char *in = *inptr;
303 unsigned char *ret = app_malloc(strlen(in) / 2, "hexdecode");
304 unsigned char *cp = ret;
305 uint8_t byte;
306 int nibble = 0;
307
308 if (ret == NULL)
309 return -1;
310
311 for (byte = 0; *in; ++in) {
312 int x;
313
314 if (isspace(_UC(*in)))
315 continue;
316 x = OPENSSL_hexchar2int(*in);
317 if (x < 0) {
318 OPENSSL_free(ret);
319 return 0;
320 }
321 byte |= (char)x;
322 if ((nibble ^= 1) == 0) {
323 *cp++ = byte;
324 byte = 0;
325 } else {
326 byte <<= 4;
327 }
328 }
329 if (nibble != 0) {
330 OPENSSL_free(ret);
331 return 0;
332 }
333 *inptr = in;
334
335 return cp - (*out = ret);
336}
337
338/*
339 * Decode unsigned 0..255, returns 1 on success, <= 0 on failure. Advances
340 * inptr to next field skipping leading whitespace.
341 */
342static ossl_ssize_t checked_uint8(const char **inptr, void *out)
343{
344 uint8_t *result = (uint8_t *)out;
345 const char *in = *inptr;
346 char *endp;
347 long v;
348 int e;
349
350 save_errno();
351 v = strtol(in, &endp, 10);
352 e = restore_errno();
353
354 if (((v == LONG_MIN || v == LONG_MAX) && e == ERANGE) ||
355 endp == in || !isspace(_UC(*endp)) ||
356 v != (*result = (uint8_t) v)) {
357 return -1;
358 }
359 for (in = endp; isspace(_UC(*in)); ++in)
360 continue;
361
362 *inptr = in;
363 return 1;
364}
365
366struct tlsa_field {
367 void *var;
368 const char *name;
369 ossl_ssize_t (*parser)(const char **, void *);
370};
371
372static int tlsa_import_rr(SSL *con, const char *rrdata)
373{
374 /* Not necessary to re-init these values; the "parsers" do that. */
375 static uint8_t usage;
376 static uint8_t selector;
377 static uint8_t mtype;
378 static unsigned char *data;
379 static struct tlsa_field tlsa_fields[] = {
380 { &usage, "usage", checked_uint8 },
381 { &selector, "selector", checked_uint8 },
382 { &mtype, "mtype", checked_uint8 },
383 { &data, "data", hexdecode },
384 { NULL, }
385 };
386 struct tlsa_field *f;
387 int ret;
388 const char *cp = rrdata;
389 ossl_ssize_t len = 0;
390
391 for (f = tlsa_fields; f->var; ++f) {
392 /* Returns number of bytes produced, advances cp to next field */
393 if ((len = f->parser(&cp, f->var)) <= 0) {
394 BIO_printf(bio_err, "%s: warning: bad TLSA %s field in: %s\n",
395 prog, f->name, rrdata);
396 return 0;
397 }
398 }
399 /* The data field is last, so len is its length */
400 ret = SSL_dane_tlsa_add(con, usage, selector, mtype, data, len);
401 OPENSSL_free(data);
402
403 if (ret == 0) {
404 ERR_print_errors(bio_err);
405 BIO_printf(bio_err, "%s: warning: unusable TLSA rrdata: %s\n",
406 prog, rrdata);
407 return 0;
408 }
409 if (ret < 0) {
410 ERR_print_errors(bio_err);
411 BIO_printf(bio_err, "%s: warning: error loading TLSA rrdata: %s\n",
412 prog, rrdata);
413 return 0;
414 }
415 return ret;
416}
417
418static int tlsa_import_rrset(SSL *con, STACK_OF(OPENSSL_STRING) *rrset)
419{
420 int num = sk_OPENSSL_STRING_num(rrset);
421 int count = 0;
422 int i;
423
424 for (i = 0; i < num; ++i) {
425 char *rrdata = sk_OPENSSL_STRING_value(rrset, i);
426 if (tlsa_import_rr(con, rrdata) > 0)
427 ++count;
428 }
429 return count > 0;
430}
431
432typedef enum OPTION_choice {
433 OPT_COMMON,
434 OPT_4, OPT_6, OPT_HOST, OPT_PORT, OPT_CONNECT, OPT_BIND, OPT_UNIX,
435 OPT_XMPPHOST, OPT_VERIFY, OPT_NAMEOPT,
436 OPT_CERT, OPT_CRL, OPT_CRL_DOWNLOAD, OPT_SESS_OUT, OPT_SESS_IN,
437 OPT_CERTFORM, OPT_CRLFORM, OPT_VERIFY_RET_ERROR, OPT_VERIFY_QUIET,
438 OPT_BRIEF, OPT_PREXIT, OPT_CRLF, OPT_QUIET, OPT_NBIO,
439 OPT_SSL_CLIENT_ENGINE, OPT_IGN_EOF, OPT_NO_IGN_EOF,
440 OPT_DEBUG, OPT_TLSEXTDEBUG, OPT_STATUS, OPT_WDEBUG,
441 OPT_MSG, OPT_MSGFILE, OPT_ENGINE, OPT_TRACE, OPT_SECURITY_DEBUG,
442 OPT_SECURITY_DEBUG_VERBOSE, OPT_SHOWCERTS, OPT_NBIO_TEST, OPT_STATE,
443 OPT_PSK_IDENTITY, OPT_PSK, OPT_PSK_SESS,
444#ifndef OPENSSL_NO_SRP
445 OPT_SRPUSER, OPT_SRPPASS, OPT_SRP_STRENGTH, OPT_SRP_LATEUSER,
446 OPT_SRP_MOREGROUPS,
447#endif
448 OPT_SSL3, OPT_SSL_CONFIG,
449 OPT_TLS1_3, OPT_TLS1_2, OPT_TLS1_1, OPT_TLS1, OPT_DTLS, OPT_DTLS1,
450 OPT_DTLS1_2, OPT_SCTP, OPT_TIMEOUT, OPT_MTU, OPT_KEYFORM, OPT_PASS,
451 OPT_CERT_CHAIN, OPT_KEY, OPT_RECONNECT, OPT_BUILD_CHAIN,
452 OPT_NEXTPROTONEG, OPT_ALPN,
453 OPT_CAPATH, OPT_NOCAPATH, OPT_CHAINCAPATH, OPT_VERIFYCAPATH,
454 OPT_CAFILE, OPT_NOCAFILE, OPT_CHAINCAFILE, OPT_VERIFYCAFILE,
455 OPT_CASTORE, OPT_NOCASTORE, OPT_CHAINCASTORE, OPT_VERIFYCASTORE,
456 OPT_SERVERINFO, OPT_STARTTLS, OPT_SERVERNAME, OPT_NOSERVERNAME, OPT_ASYNC,
457 OPT_USE_SRTP, OPT_KEYMATEXPORT, OPT_KEYMATEXPORTLEN, OPT_PROTOHOST,
458 OPT_MAXFRAGLEN, OPT_MAX_SEND_FRAG, OPT_SPLIT_SEND_FRAG, OPT_MAX_PIPELINES,
459 OPT_READ_BUF, OPT_KEYLOG_FILE, OPT_EARLY_DATA, OPT_REQCAFILE,
460 OPT_V_ENUM,
461 OPT_X_ENUM,
462 OPT_S_ENUM, OPT_IGNORE_UNEXPECTED_EOF,
463 OPT_FALLBACKSCSV, OPT_NOCMDS, OPT_PROXY, OPT_PROXY_USER, OPT_PROXY_PASS,
464 OPT_DANE_TLSA_DOMAIN,
465#ifndef OPENSSL_NO_CT
466 OPT_CT, OPT_NOCT, OPT_CTLOG_FILE,
467#endif
468 OPT_DANE_TLSA_RRDATA, OPT_DANE_EE_NO_NAME,
469 OPT_ENABLE_PHA,
470 OPT_SCTP_LABEL_BUG,
471 OPT_R_ENUM, OPT_PROV_ENUM
472} OPTION_CHOICE;
473
474const OPTIONS s_client_options[] = {
475 {OPT_HELP_STR, 1, '-', "Usage: %s [options] [host:port]\n"},
476
477 OPT_SECTION("General"),
478 {"help", OPT_HELP, '-', "Display this summary"},
479#ifndef OPENSSL_NO_ENGINE
480 {"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"},
481 {"ssl_client_engine", OPT_SSL_CLIENT_ENGINE, 's',
482 "Specify engine to be used for client certificate operations"},
483#endif
484 {"ssl_config", OPT_SSL_CONFIG, 's', "Use specified section for SSL_CTX configuration"},
485#ifndef OPENSSL_NO_CT
486 {"ct", OPT_CT, '-', "Request and parse SCTs (also enables OCSP stapling)"},
487 {"noct", OPT_NOCT, '-', "Do not request or parse SCTs (default)"},
488 {"ctlogfile", OPT_CTLOG_FILE, '<', "CT log list CONF file"},
489#endif
490
491 OPT_SECTION("Network"),
492 {"host", OPT_HOST, 's', "Use -connect instead"},
493 {"port", OPT_PORT, 'p', "Use -connect instead"},
494 {"connect", OPT_CONNECT, 's',
495 "TCP/IP where to connect; default: " PORT ")"},
496 {"bind", OPT_BIND, 's', "bind local address for connection"},
497 {"proxy", OPT_PROXY, 's',
498 "Connect to via specified proxy to the real server"},
499 {"proxy_user", OPT_PROXY_USER, 's', "UserID for proxy authentication"},
500 {"proxy_pass", OPT_PROXY_PASS, 's', "Proxy authentication password source"},
501#ifdef AF_UNIX
502 {"unix", OPT_UNIX, 's', "Connect over the specified Unix-domain socket"},
503#endif
504 {"4", OPT_4, '-', "Use IPv4 only"},
505#ifdef AF_INET6
506 {"6", OPT_6, '-', "Use IPv6 only"},
507#endif
508 {"maxfraglen", OPT_MAXFRAGLEN, 'p',
509 "Enable Maximum Fragment Length Negotiation (len values: 512, 1024, 2048 and 4096)"},
510 {"max_send_frag", OPT_MAX_SEND_FRAG, 'p', "Maximum Size of send frames "},
511 {"split_send_frag", OPT_SPLIT_SEND_FRAG, 'p',
512 "Size used to split data for encrypt pipelines"},
513 {"max_pipelines", OPT_MAX_PIPELINES, 'p',
514 "Maximum number of encrypt/decrypt pipelines to be used"},
515 {"read_buf", OPT_READ_BUF, 'p',
516 "Default read buffer size to be used for connections"},
517 {"fallback_scsv", OPT_FALLBACKSCSV, '-', "Send the fallback SCSV"},
518
519 OPT_SECTION("Identity"),
520 {"cert", OPT_CERT, '<', "Client certificate file to use"},
521 {"certform", OPT_CERTFORM, 'F',
522 "Client certificate file format (PEM/DER/P12); has no effect"},
523 {"cert_chain", OPT_CERT_CHAIN, '<',
524 "Client certificate chain file (in PEM format)"},
525 {"build_chain", OPT_BUILD_CHAIN, '-', "Build client certificate chain"},
526 {"key", OPT_KEY, 's', "Private key file to use; default: -cert file"},
527 {"keyform", OPT_KEYFORM, 'E', "Key format (ENGINE, other values ignored)"},
528 {"pass", OPT_PASS, 's', "Private key and cert file pass phrase source"},
529 {"verify", OPT_VERIFY, 'p', "Turn on peer certificate verification"},
530 {"nameopt", OPT_NAMEOPT, 's', "Certificate subject/issuer name printing options"},
531 {"CApath", OPT_CAPATH, '/', "PEM format directory of CA's"},
532 {"CAfile", OPT_CAFILE, '<', "PEM format file of CA's"},
533 {"CAstore", OPT_CASTORE, ':', "URI to store of CA's"},
534 {"no-CAfile", OPT_NOCAFILE, '-',
535 "Do not load the default certificates file"},
536 {"no-CApath", OPT_NOCAPATH, '-',
537 "Do not load certificates from the default certificates directory"},
538 {"no-CAstore", OPT_NOCASTORE, '-',
539 "Do not load certificates from the default certificates store"},
540 {"requestCAfile", OPT_REQCAFILE, '<',
541 "PEM format file of CA names to send to the server"},
542 {"dane_tlsa_domain", OPT_DANE_TLSA_DOMAIN, 's', "DANE TLSA base domain"},
543 {"dane_tlsa_rrdata", OPT_DANE_TLSA_RRDATA, 's',
544 "DANE TLSA rrdata presentation form"},
545 {"dane_ee_no_namechecks", OPT_DANE_EE_NO_NAME, '-',
546 "Disable name checks when matching DANE-EE(3) TLSA records"},
547 {"psk_identity", OPT_PSK_IDENTITY, 's', "PSK identity"},
548 {"psk", OPT_PSK, 's', "PSK in hex (without 0x)"},
549 {"psk_session", OPT_PSK_SESS, '<', "File to read PSK SSL session from"},
550 {"name", OPT_PROTOHOST, 's',
551 "Hostname to use for \"-starttls lmtp\", \"-starttls smtp\" or \"-starttls xmpp[-server]\""},
552
553 OPT_SECTION("Session"),
554 {"reconnect", OPT_RECONNECT, '-',
555 "Drop and re-make the connection with the same Session-ID"},
556 {"sess_out", OPT_SESS_OUT, '>', "File to write SSL session to"},
557 {"sess_in", OPT_SESS_IN, '<', "File to read SSL session from"},
558
559 OPT_SECTION("Input/Output"),
560 {"crlf", OPT_CRLF, '-', "Convert LF from terminal into CRLF"},
561 {"quiet", OPT_QUIET, '-', "No s_client output"},
562 {"ign_eof", OPT_IGN_EOF, '-', "Ignore input eof (default when -quiet)"},
563 {"no_ign_eof", OPT_NO_IGN_EOF, '-', "Don't ignore input eof"},
564 {"starttls", OPT_STARTTLS, 's',
565 "Use the appropriate STARTTLS command before starting TLS"},
566 {"xmpphost", OPT_XMPPHOST, 's',
567 "Alias of -name option for \"-starttls xmpp[-server]\""},
568 {"brief", OPT_BRIEF, '-',
569 "Restrict output to brief summary of connection parameters"},
570 {"prexit", OPT_PREXIT, '-',
571 "Print session information when the program exits"},
572
573 OPT_SECTION("Debug"),
574 {"showcerts", OPT_SHOWCERTS, '-',
575 "Show all certificates sent by the server"},
576 {"debug", OPT_DEBUG, '-', "Extra output"},
577 {"msg", OPT_MSG, '-', "Show protocol messages"},
578 {"msgfile", OPT_MSGFILE, '>',
579 "File to send output of -msg or -trace, instead of stdout"},
580 {"nbio_test", OPT_NBIO_TEST, '-', "More ssl protocol testing"},
581 {"state", OPT_STATE, '-', "Print the ssl states"},
582 {"keymatexport", OPT_KEYMATEXPORT, 's',
583 "Export keying material using label"},
584 {"keymatexportlen", OPT_KEYMATEXPORTLEN, 'p',
585 "Export len bytes of keying material; default 20"},
586 {"security_debug", OPT_SECURITY_DEBUG, '-',
587 "Enable security debug messages"},
588 {"security_debug_verbose", OPT_SECURITY_DEBUG_VERBOSE, '-',
589 "Output more security debug output"},
590#ifndef OPENSSL_NO_SSL_TRACE
591 {"trace", OPT_TRACE, '-', "Show trace output of protocol messages"},
592#endif
593#ifdef WATT32
594 {"wdebug", OPT_WDEBUG, '-', "WATT-32 tcp debugging"},
595#endif
596 {"keylogfile", OPT_KEYLOG_FILE, '>', "Write TLS secrets to file"},
597 {"nocommands", OPT_NOCMDS, '-', "Do not use interactive command letters"},
598 {"servername", OPT_SERVERNAME, 's',
599 "Set TLS extension servername (SNI) in ClientHello (default)"},
600 {"noservername", OPT_NOSERVERNAME, '-',
601 "Do not send the server name (SNI) extension in the ClientHello"},
602 {"tlsextdebug", OPT_TLSEXTDEBUG, '-',
603 "Hex dump of all TLS extensions received"},
604 {"ignore_unexpected_eof", OPT_IGNORE_UNEXPECTED_EOF, '-',
605 "Do not treat lack of close_notify from a peer as an error"},
606#ifndef OPENSSL_NO_OCSP
607 {"status", OPT_STATUS, '-', "Request certificate status from server"},
608#endif
609 {"serverinfo", OPT_SERVERINFO, 's',
610 "types Send empty ClientHello extensions (comma-separated numbers)"},
611 {"alpn", OPT_ALPN, 's',
612 "Enable ALPN extension, considering named protocols supported (comma-separated list)"},
613 {"async", OPT_ASYNC, '-', "Support asynchronous operation"},
614 {"nbio", OPT_NBIO, '-', "Use non-blocking IO"},
615
616 OPT_SECTION("Protocol and version"),
617#ifndef OPENSSL_NO_SSL3
618 {"ssl3", OPT_SSL3, '-', "Just use SSLv3"},
619#endif
620#ifndef OPENSSL_NO_TLS1
621 {"tls1", OPT_TLS1, '-', "Just use TLSv1"},
622#endif
623#ifndef OPENSSL_NO_TLS1_1
624 {"tls1_1", OPT_TLS1_1, '-', "Just use TLSv1.1"},
625#endif
626#ifndef OPENSSL_NO_TLS1_2
627 {"tls1_2", OPT_TLS1_2, '-', "Just use TLSv1.2"},
628#endif
629#ifndef OPENSSL_NO_TLS1_3
630 {"tls1_3", OPT_TLS1_3, '-', "Just use TLSv1.3"},
631#endif
632#ifndef OPENSSL_NO_DTLS
633 {"dtls", OPT_DTLS, '-', "Use any version of DTLS"},
634 {"timeout", OPT_TIMEOUT, '-',
635 "Enable send/receive timeout on DTLS connections"},
636 {"mtu", OPT_MTU, 'p', "Set the link layer MTU"},
637#endif
638#ifndef OPENSSL_NO_DTLS1
639 {"dtls1", OPT_DTLS1, '-', "Just use DTLSv1"},
640#endif
641#ifndef OPENSSL_NO_DTLS1_2
642 {"dtls1_2", OPT_DTLS1_2, '-', "Just use DTLSv1.2"},
643#endif
644#ifndef OPENSSL_NO_SCTP
645 {"sctp", OPT_SCTP, '-', "Use SCTP"},
646 {"sctp_label_bug", OPT_SCTP_LABEL_BUG, '-', "Enable SCTP label length bug"},
647#endif
648#ifndef OPENSSL_NO_NEXTPROTONEG
649 {"nextprotoneg", OPT_NEXTPROTONEG, 's',
650 "Enable NPN extension, considering named protocols supported (comma-separated list)"},
651#endif
652 {"early_data", OPT_EARLY_DATA, '<', "File to send as early data"},
653 {"enable_pha", OPT_ENABLE_PHA, '-', "Enable post-handshake-authentication"},
654#ifndef OPENSSL_NO_SRTP
655 {"use_srtp", OPT_USE_SRTP, 's',
656 "Offer SRTP key management with a colon-separated profile list"},
657#endif
658#ifndef OPENSSL_NO_SRP
659 {"srpuser", OPT_SRPUSER, 's', "(deprecated) SRP authentication for 'user'"},
660 {"srppass", OPT_SRPPASS, 's', "(deprecated) Password for 'user'"},
661 {"srp_lateuser", OPT_SRP_LATEUSER, '-',
662 "(deprecated) SRP username into second ClientHello message"},
663 {"srp_moregroups", OPT_SRP_MOREGROUPS, '-',
664 "(deprecated) Tolerate other than the known g N values."},
665 {"srp_strength", OPT_SRP_STRENGTH, 'p',
666 "(deprecated) Minimal length in bits for N"},
667#endif
668
669 OPT_R_OPTIONS,
670 OPT_S_OPTIONS,
671 OPT_V_OPTIONS,
672 {"CRL", OPT_CRL, '<', "CRL file to use"},
673 {"crl_download", OPT_CRL_DOWNLOAD, '-', "Download CRL from distribution points"},
674 {"CRLform", OPT_CRLFORM, 'F', "CRL format (PEM or DER); default PEM"},
675 {"verify_return_error", OPT_VERIFY_RET_ERROR, '-',
676 "Close connection on verification error"},
677 {"verify_quiet", OPT_VERIFY_QUIET, '-', "Restrict verify output to errors"},
678 {"chainCAfile", OPT_CHAINCAFILE, '<',
679 "CA file for certificate chain (PEM format)"},
680 {"chainCApath", OPT_CHAINCAPATH, '/',
681 "Use dir as certificate store path to build CA certificate chain"},
682 {"chainCAstore", OPT_CHAINCASTORE, ':',
683 "CA store URI for certificate chain"},
684 {"verifyCAfile", OPT_VERIFYCAFILE, '<',
685 "CA file for certificate verification (PEM format)"},
686 {"verifyCApath", OPT_VERIFYCAPATH, '/',
687 "Use dir as certificate store path to verify CA certificate"},
688 {"verifyCAstore", OPT_VERIFYCASTORE, ':',
689 "CA store URI for certificate verification"},
690 OPT_X_OPTIONS,
691 OPT_PROV_OPTIONS,
692
693 OPT_PARAMETERS(),
694 {"host:port", 0, 0, "Where to connect; same as -connect option"},
695 {NULL}
696};
697
698typedef enum PROTOCOL_choice {
699 PROTO_OFF,
700 PROTO_SMTP,
701 PROTO_POP3,
702 PROTO_IMAP,
703 PROTO_FTP,
704 PROTO_TELNET,
705 PROTO_XMPP,
706 PROTO_XMPP_SERVER,
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
716static 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|. */
743static 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
751static 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
783int 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 = NULL;
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 char *sname_alloc = NULL;
847 int noservername = 0;
848 const char *alpn_in = NULL;
849 tlsextctx tlsextcbp = { NULL, 0 };
850 const char *ssl_config = NULL;
851#define MAX_SI_TYPES 100
852 unsigned short serverinfo_types[MAX_SI_TYPES];
853 int serverinfo_count = 0, start = 0, len;
854#ifndef OPENSSL_NO_NEXTPROTONEG
855 const char *next_proto_neg_in = NULL;
856#endif
857#ifndef OPENSSL_NO_SRP
858 char *srppass = NULL;
859 int srp_lateuser = 0;
860 SRP_ARG srp_arg = { NULL, NULL, 0, 0, 0, 1024 };
861#endif
862#ifndef OPENSSL_NO_SRTP
863 char *srtp_profiles = NULL;
864#endif
865#ifndef OPENSSL_NO_CT
866 char *ctlog_file = NULL;
867 int ct_validation = 0;
868#endif
869 int min_version = 0, max_version = 0, prot_opt = 0, no_prot_opt = 0;
870 int async = 0;
871 unsigned int max_send_fragment = 0;
872 unsigned int split_send_fragment = 0, max_pipelines = 0;
873 enum { use_inet, use_unix, use_unknown } connect_type = use_unknown;
874 int count4or6 = 0;
875 uint8_t maxfraglen = 0;
876 int c_nbio = 0, c_msg = 0, c_ign_eof = 0, c_brief = 0;
877 int c_tlsextdebug = 0;
878#ifndef OPENSSL_NO_OCSP
879 int c_status_req = 0;
880#endif
881 BIO *bio_c_msg = NULL;
882 const char *keylog_file = NULL, *early_data_file = NULL;
883#ifndef OPENSSL_NO_DTLS
884 int isdtls = 0;
885#endif
886 char *psksessf = NULL;
887 int enable_pha = 0;
888#ifndef OPENSSL_NO_SCTP
889 int sctp_label_bug = 0;
890#endif
891 int ignore_unexpected_eof = 0;
892
893 FD_ZERO(&readfds);
894 FD_ZERO(&writefds);
895/* Known false-positive of MemorySanitizer. */
896#if defined(__has_feature)
897# if __has_feature(memory_sanitizer)
898 __msan_unpoison(&readfds, sizeof(readfds));
899 __msan_unpoison(&writefds, sizeof(writefds));
900# endif
901#endif
902
903 c_quiet = 0;
904 c_debug = 0;
905 c_showcerts = 0;
906 c_nbio = 0;
907 port = OPENSSL_strdup(PORT);
908 vpm = X509_VERIFY_PARAM_new();
909 cctx = SSL_CONF_CTX_new();
910
911 if (port == NULL || vpm == NULL || cctx == NULL) {
912 BIO_printf(bio_err, "%s: out of memory\n", opt_getprog());
913 goto end;
914 }
915
916 cbuf = app_malloc(BUFSIZZ, "cbuf");
917 sbuf = app_malloc(BUFSIZZ, "sbuf");
918 mbuf = app_malloc(BUFSIZZ, "mbuf");
919
920 SSL_CONF_CTX_set_flags(cctx, SSL_CONF_FLAG_CLIENT | SSL_CONF_FLAG_CMDLINE);
921
922 prog = opt_init(argc, argv, s_client_options);
923 while ((o = opt_next()) != OPT_EOF) {
924 /* Check for intermixing flags. */
925 if (connect_type == use_unix && IS_INET_FLAG(o)) {
926 BIO_printf(bio_err,
927 "%s: Intermixed protocol flags (unix and internet domains)\n",
928 prog);
929 goto end;
930 }
931 if (connect_type == use_inet && IS_UNIX_FLAG(o)) {
932 BIO_printf(bio_err,
933 "%s: Intermixed protocol flags (internet and unix domains)\n",
934 prog);
935 goto end;
936 }
937
938 if (IS_PROT_FLAG(o) && ++prot_opt > 1) {
939 BIO_printf(bio_err, "Cannot supply multiple protocol flags\n");
940 goto end;
941 }
942 if (IS_NO_PROT_FLAG(o))
943 no_prot_opt++;
944 if (prot_opt == 1 && no_prot_opt) {
945 BIO_printf(bio_err,
946 "Cannot supply both a protocol flag and '-no_<prot>'\n");
947 goto end;
948 }
949
950 switch (o) {
951 case OPT_EOF:
952 case OPT_ERR:
953 opthelp:
954 BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
955 goto end;
956 case OPT_HELP:
957 opt_help(s_client_options);
958 ret = 0;
959 goto end;
960 case OPT_4:
961 connect_type = use_inet;
962 socket_family = AF_INET;
963 count4or6++;
964 break;
965#ifdef AF_INET6
966 case OPT_6:
967 connect_type = use_inet;
968 socket_family = AF_INET6;
969 count4or6++;
970 break;
971#endif
972 case OPT_HOST:
973 connect_type = use_inet;
974 freeandcopy(&host, opt_arg());
975 break;
976 case OPT_PORT:
977 connect_type = use_inet;
978 freeandcopy(&port, opt_arg());
979 break;
980 case OPT_CONNECT:
981 connect_type = use_inet;
982 freeandcopy(&connectstr, opt_arg());
983 break;
984 case OPT_BIND:
985 freeandcopy(&bindstr, opt_arg());
986 break;
987 case OPT_PROXY:
988 proxystr = opt_arg();
989 break;
990 case OPT_PROXY_USER:
991 proxyuser = opt_arg();
992 break;
993 case OPT_PROXY_PASS:
994 proxypassarg = opt_arg();
995 break;
996#ifdef AF_UNIX
997 case OPT_UNIX:
998 connect_type = use_unix;
999 socket_family = AF_UNIX;
1000 freeandcopy(&host, opt_arg());
1001 break;
1002#endif
1003 case OPT_XMPPHOST:
1004 /* fall through, since this is an alias */
1005 case OPT_PROTOHOST:
1006 protohost = opt_arg();
1007 break;
1008 case OPT_VERIFY:
1009 verify = SSL_VERIFY_PEER;
1010 verify_args.depth = atoi(opt_arg());
1011 if (!c_quiet)
1012 BIO_printf(bio_err, "verify depth is %d\n", verify_args.depth);
1013 break;
1014 case OPT_CERT:
1015 cert_file = opt_arg();
1016 break;
1017 case OPT_NAMEOPT:
1018 if (!set_nameopt(opt_arg()))
1019 goto end;
1020 break;
1021 case OPT_CRL:
1022 crl_file = opt_arg();
1023 break;
1024 case OPT_CRL_DOWNLOAD:
1025 crl_download = 1;
1026 break;
1027 case OPT_SESS_OUT:
1028 sess_out = opt_arg();
1029 break;
1030 case OPT_SESS_IN:
1031 sess_in = opt_arg();
1032 break;
1033 case OPT_CERTFORM:
1034 if (!opt_format(opt_arg(), OPT_FMT_ANY, &cert_format))
1035 goto opthelp;
1036 break;
1037 case OPT_CRLFORM:
1038 if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &crl_format))
1039 goto opthelp;
1040 break;
1041 case OPT_VERIFY_RET_ERROR:
1042 verify = SSL_VERIFY_PEER;
1043 verify_args.return_error = 1;
1044 break;
1045 case OPT_VERIFY_QUIET:
1046 verify_args.quiet = 1;
1047 break;
1048 case OPT_BRIEF:
1049 c_brief = verify_args.quiet = c_quiet = 1;
1050 break;
1051 case OPT_S_CASES:
1052 if (ssl_args == NULL)
1053 ssl_args = sk_OPENSSL_STRING_new_null();
1054 if (ssl_args == NULL
1055 || !sk_OPENSSL_STRING_push(ssl_args, opt_flag())
1056 || !sk_OPENSSL_STRING_push(ssl_args, opt_arg())) {
1057 BIO_printf(bio_err, "%s: Memory allocation failure\n", prog);
1058 goto end;
1059 }
1060 break;
1061 case OPT_V_CASES:
1062 if (!opt_verify(o, vpm))
1063 goto end;
1064 vpmtouched++;
1065 break;
1066 case OPT_X_CASES:
1067 if (!args_excert(o, &exc))
1068 goto end;
1069 break;
1070 case OPT_IGNORE_UNEXPECTED_EOF:
1071 ignore_unexpected_eof = 1;
1072 break;
1073 case OPT_PREXIT:
1074 prexit = 1;
1075 break;
1076 case OPT_CRLF:
1077 crlf = 1;
1078 break;
1079 case OPT_QUIET:
1080 c_quiet = c_ign_eof = 1;
1081 break;
1082 case OPT_NBIO:
1083 c_nbio = 1;
1084 break;
1085 case OPT_NOCMDS:
1086 cmdletters = 0;
1087 break;
1088 case OPT_ENGINE:
1089 e = setup_engine(opt_arg(), 1);
1090 break;
1091 case OPT_SSL_CLIENT_ENGINE:
1092#ifndef OPENSSL_NO_ENGINE
1093 ssl_client_engine = setup_engine(opt_arg(), 0);
1094 if (ssl_client_engine == NULL) {
1095 BIO_printf(bio_err, "Error getting client auth engine\n");
1096 goto opthelp;
1097 }
1098#endif
1099 break;
1100 case OPT_R_CASES:
1101 if (!opt_rand(o))
1102 goto end;
1103 break;
1104 case OPT_PROV_CASES:
1105 if (!opt_provider(o))
1106 goto end;
1107 break;
1108 case OPT_IGN_EOF:
1109 c_ign_eof = 1;
1110 break;
1111 case OPT_NO_IGN_EOF:
1112 c_ign_eof = 0;
1113 break;
1114 case OPT_DEBUG:
1115 c_debug = 1;
1116 break;
1117 case OPT_TLSEXTDEBUG:
1118 c_tlsextdebug = 1;
1119 break;
1120 case OPT_STATUS:
1121#ifndef OPENSSL_NO_OCSP
1122 c_status_req = 1;
1123#endif
1124 break;
1125 case OPT_WDEBUG:
1126#ifdef WATT32
1127 dbug_init();
1128#endif
1129 break;
1130 case OPT_MSG:
1131 c_msg = 1;
1132 break;
1133 case OPT_MSGFILE:
1134 bio_c_msg = BIO_new_file(opt_arg(), "w");
1135 if (bio_c_msg == NULL) {
1136 BIO_printf(bio_err, "Error writing file %s\n", opt_arg());
1137 goto end;
1138 }
1139 break;
1140 case OPT_TRACE:
1141#ifndef OPENSSL_NO_SSL_TRACE
1142 c_msg = 2;
1143#endif
1144 break;
1145 case OPT_SECURITY_DEBUG:
1146 sdebug = 1;
1147 break;
1148 case OPT_SECURITY_DEBUG_VERBOSE:
1149 sdebug = 2;
1150 break;
1151 case OPT_SHOWCERTS:
1152 c_showcerts = 1;
1153 break;
1154 case OPT_NBIO_TEST:
1155 nbio_test = 1;
1156 break;
1157 case OPT_STATE:
1158 state = 1;
1159 break;
1160 case OPT_PSK_IDENTITY:
1161 psk_identity = opt_arg();
1162 break;
1163 case OPT_PSK:
1164 for (p = psk_key = opt_arg(); *p; p++) {
1165 if (isxdigit(_UC(*p)))
1166 continue;
1167 BIO_printf(bio_err, "Not a hex number '%s'\n", psk_key);
1168 goto end;
1169 }
1170 break;
1171 case OPT_PSK_SESS:
1172 psksessf = opt_arg();
1173 break;
1174#ifndef OPENSSL_NO_SRP
1175 case OPT_SRPUSER:
1176 srp_arg.srplogin = opt_arg();
1177 if (min_version < TLS1_VERSION)
1178 min_version = TLS1_VERSION;
1179 break;
1180 case OPT_SRPPASS:
1181 srppass = opt_arg();
1182 if (min_version < TLS1_VERSION)
1183 min_version = TLS1_VERSION;
1184 break;
1185 case OPT_SRP_STRENGTH:
1186 srp_arg.strength = atoi(opt_arg());
1187 BIO_printf(bio_err, "SRP minimal length for N is %d\n",
1188 srp_arg.strength);
1189 if (min_version < TLS1_VERSION)
1190 min_version = TLS1_VERSION;
1191 break;
1192 case OPT_SRP_LATEUSER:
1193 srp_lateuser = 1;
1194 if (min_version < TLS1_VERSION)
1195 min_version = TLS1_VERSION;
1196 break;
1197 case OPT_SRP_MOREGROUPS:
1198 srp_arg.amp = 1;
1199 if (min_version < TLS1_VERSION)
1200 min_version = TLS1_VERSION;
1201 break;
1202#endif
1203 case OPT_SSL_CONFIG:
1204 ssl_config = opt_arg();
1205 break;
1206 case OPT_SSL3:
1207 min_version = SSL3_VERSION;
1208 max_version = SSL3_VERSION;
1209 socket_type = SOCK_STREAM;
1210#ifndef OPENSSL_NO_DTLS
1211 isdtls = 0;
1212#endif
1213 break;
1214 case OPT_TLS1_3:
1215 min_version = TLS1_3_VERSION;
1216 max_version = TLS1_3_VERSION;
1217 socket_type = SOCK_STREAM;
1218#ifndef OPENSSL_NO_DTLS
1219 isdtls = 0;
1220#endif
1221 break;
1222 case OPT_TLS1_2:
1223 min_version = TLS1_2_VERSION;
1224 max_version = TLS1_2_VERSION;
1225 socket_type = SOCK_STREAM;
1226#ifndef OPENSSL_NO_DTLS
1227 isdtls = 0;
1228#endif
1229 break;
1230 case OPT_TLS1_1:
1231 min_version = TLS1_1_VERSION;
1232 max_version = TLS1_1_VERSION;
1233 socket_type = SOCK_STREAM;
1234#ifndef OPENSSL_NO_DTLS
1235 isdtls = 0;
1236#endif
1237 break;
1238 case OPT_TLS1:
1239 min_version = TLS1_VERSION;
1240 max_version = TLS1_VERSION;
1241 socket_type = SOCK_STREAM;
1242#ifndef OPENSSL_NO_DTLS
1243 isdtls = 0;
1244#endif
1245 break;
1246 case OPT_DTLS:
1247#ifndef OPENSSL_NO_DTLS
1248 meth = DTLS_client_method();
1249 socket_type = SOCK_DGRAM;
1250 isdtls = 1;
1251#endif
1252 break;
1253 case OPT_DTLS1:
1254#ifndef OPENSSL_NO_DTLS1
1255 meth = DTLS_client_method();
1256 min_version = DTLS1_VERSION;
1257 max_version = DTLS1_VERSION;
1258 socket_type = SOCK_DGRAM;
1259 isdtls = 1;
1260#endif
1261 break;
1262 case OPT_DTLS1_2:
1263#ifndef OPENSSL_NO_DTLS1_2
1264 meth = DTLS_client_method();
1265 min_version = DTLS1_2_VERSION;
1266 max_version = DTLS1_2_VERSION;
1267 socket_type = SOCK_DGRAM;
1268 isdtls = 1;
1269#endif
1270 break;
1271 case OPT_SCTP:
1272#ifndef OPENSSL_NO_SCTP
1273 protocol = IPPROTO_SCTP;
1274#endif
1275 break;
1276 case OPT_SCTP_LABEL_BUG:
1277#ifndef OPENSSL_NO_SCTP
1278 sctp_label_bug = 1;
1279#endif
1280 break;
1281 case OPT_TIMEOUT:
1282#ifndef OPENSSL_NO_DTLS
1283 enable_timeouts = 1;
1284#endif
1285 break;
1286 case OPT_MTU:
1287#ifndef OPENSSL_NO_DTLS
1288 socket_mtu = atol(opt_arg());
1289#endif
1290 break;
1291 case OPT_FALLBACKSCSV:
1292 fallback_scsv = 1;
1293 break;
1294 case OPT_KEYFORM:
1295 if (!opt_format(opt_arg(), OPT_FMT_ANY, &key_format))
1296 goto opthelp;
1297 break;
1298 case OPT_PASS:
1299 passarg = opt_arg();
1300 break;
1301 case OPT_CERT_CHAIN:
1302 chain_file = opt_arg();
1303 break;
1304 case OPT_KEY:
1305 key_file = opt_arg();
1306 break;
1307 case OPT_RECONNECT:
1308 reconnect = 5;
1309 break;
1310 case OPT_CAPATH:
1311 CApath = opt_arg();
1312 break;
1313 case OPT_NOCAPATH:
1314 noCApath = 1;
1315 break;
1316 case OPT_CHAINCAPATH:
1317 chCApath = opt_arg();
1318 break;
1319 case OPT_VERIFYCAPATH:
1320 vfyCApath = opt_arg();
1321 break;
1322 case OPT_BUILD_CHAIN:
1323 build_chain = 1;
1324 break;
1325 case OPT_REQCAFILE:
1326 ReqCAfile = opt_arg();
1327 break;
1328 case OPT_CAFILE:
1329 CAfile = opt_arg();
1330 break;
1331 case OPT_NOCAFILE:
1332 noCAfile = 1;
1333 break;
1334#ifndef OPENSSL_NO_CT
1335 case OPT_NOCT:
1336 ct_validation = 0;
1337 break;
1338 case OPT_CT:
1339 ct_validation = 1;
1340 break;
1341 case OPT_CTLOG_FILE:
1342 ctlog_file = opt_arg();
1343 break;
1344#endif
1345 case OPT_CHAINCAFILE:
1346 chCAfile = opt_arg();
1347 break;
1348 case OPT_VERIFYCAFILE:
1349 vfyCAfile = opt_arg();
1350 break;
1351 case OPT_CASTORE:
1352 CAstore = opt_arg();
1353 break;
1354 case OPT_NOCASTORE:
1355 noCAstore = 1;
1356 break;
1357 case OPT_CHAINCASTORE:
1358 chCAstore = opt_arg();
1359 break;
1360 case OPT_VERIFYCASTORE:
1361 vfyCAstore = opt_arg();
1362 break;
1363 case OPT_DANE_TLSA_DOMAIN:
1364 dane_tlsa_domain = opt_arg();
1365 break;
1366 case OPT_DANE_TLSA_RRDATA:
1367 if (dane_tlsa_rrset == NULL)
1368 dane_tlsa_rrset = sk_OPENSSL_STRING_new_null();
1369 if (dane_tlsa_rrset == NULL ||
1370 !sk_OPENSSL_STRING_push(dane_tlsa_rrset, opt_arg())) {
1371 BIO_printf(bio_err, "%s: Memory allocation failure\n", prog);
1372 goto end;
1373 }
1374 break;
1375 case OPT_DANE_EE_NO_NAME:
1376 dane_ee_no_name = 1;
1377 break;
1378 case OPT_NEXTPROTONEG:
1379#ifndef OPENSSL_NO_NEXTPROTONEG
1380 next_proto_neg_in = opt_arg();
1381#endif
1382 break;
1383 case OPT_ALPN:
1384 alpn_in = opt_arg();
1385 break;
1386 case OPT_SERVERINFO:
1387 p = opt_arg();
1388 len = strlen(p);
1389 for (start = 0, i = 0; i <= len; ++i) {
1390 if (i == len || p[i] == ',') {
1391 serverinfo_types[serverinfo_count] = atoi(p + start);
1392 if (++serverinfo_count == MAX_SI_TYPES)
1393 break;
1394 start = i + 1;
1395 }
1396 }
1397 break;
1398 case OPT_STARTTLS:
1399 if (!opt_pair(opt_arg(), services, &starttls_proto))
1400 goto end;
1401 break;
1402 case OPT_SERVERNAME:
1403 servername = opt_arg();
1404 break;
1405 case OPT_NOSERVERNAME:
1406 noservername = 1;
1407 break;
1408 case OPT_USE_SRTP:
1409#ifndef OPENSSL_NO_SRTP
1410 srtp_profiles = opt_arg();
1411#endif
1412 break;
1413 case OPT_KEYMATEXPORT:
1414 keymatexportlabel = opt_arg();
1415 break;
1416 case OPT_KEYMATEXPORTLEN:
1417 keymatexportlen = atoi(opt_arg());
1418 break;
1419 case OPT_ASYNC:
1420 async = 1;
1421 break;
1422 case OPT_MAXFRAGLEN:
1423 len = atoi(opt_arg());
1424 switch (len) {
1425 case 512:
1426 maxfraglen = TLSEXT_max_fragment_length_512;
1427 break;
1428 case 1024:
1429 maxfraglen = TLSEXT_max_fragment_length_1024;
1430 break;
1431 case 2048:
1432 maxfraglen = TLSEXT_max_fragment_length_2048;
1433 break;
1434 case 4096:
1435 maxfraglen = TLSEXT_max_fragment_length_4096;
1436 break;
1437 default:
1438 BIO_printf(bio_err,
1439 "%s: Max Fragment Len %u is out of permitted values",
1440 prog, len);
1441 goto opthelp;
1442 }
1443 break;
1444 case OPT_MAX_SEND_FRAG:
1445 max_send_fragment = atoi(opt_arg());
1446 break;
1447 case OPT_SPLIT_SEND_FRAG:
1448 split_send_fragment = atoi(opt_arg());
1449 break;
1450 case OPT_MAX_PIPELINES:
1451 max_pipelines = atoi(opt_arg());
1452 break;
1453 case OPT_READ_BUF:
1454 read_buf_len = atoi(opt_arg());
1455 break;
1456 case OPT_KEYLOG_FILE:
1457 keylog_file = opt_arg();
1458 break;
1459 case OPT_EARLY_DATA:
1460 early_data_file = opt_arg();
1461 break;
1462 case OPT_ENABLE_PHA:
1463 enable_pha = 1;
1464 break;
1465 }
1466 }
1467
1468 /* Optional argument is connect string if -connect not used. */
1469 argc = opt_num_rest();
1470 if (argc == 1) {
1471 /* Don't allow -connect and a separate argument. */
1472 if (connectstr != NULL) {
1473 BIO_printf(bio_err,
1474 "%s: cannot provide both -connect option and target parameter\n",
1475 prog);
1476 goto opthelp;
1477 }
1478 connect_type = use_inet;
1479 freeandcopy(&connectstr, *opt_rest());
1480 } else if (argc != 0) {
1481 goto opthelp;
1482 }
1483 if (!app_RAND_load())
1484 goto end;
1485
1486 if (count4or6 >= 2) {
1487 BIO_printf(bio_err, "%s: Can't use both -4 and -6\n", prog);
1488 goto opthelp;
1489 }
1490 if (noservername) {
1491 if (servername != NULL) {
1492 BIO_printf(bio_err,
1493 "%s: Can't use -servername and -noservername together\n",
1494 prog);
1495 goto opthelp;
1496 }
1497 if (dane_tlsa_domain != NULL) {
1498 BIO_printf(bio_err,
1499 "%s: Can't use -dane_tlsa_domain and -noservername together\n",
1500 prog);
1501 goto opthelp;
1502 }
1503 }
1504
1505#ifndef OPENSSL_NO_NEXTPROTONEG
1506 if (min_version == TLS1_3_VERSION && next_proto_neg_in != NULL) {
1507 BIO_printf(bio_err, "Cannot supply -nextprotoneg with TLSv1.3\n");
1508 goto opthelp;
1509 }
1510#endif
1511
1512 if (connectstr != NULL) {
1513 int res;
1514 char *tmp_host = host, *tmp_port = port;
1515
1516 res = BIO_parse_hostserv(connectstr, &host, &port, BIO_PARSE_PRIO_HOST);
1517 if (tmp_host != host)
1518 OPENSSL_free(tmp_host);
1519 if (tmp_port != port)
1520 OPENSSL_free(tmp_port);
1521 if (!res) {
1522 BIO_printf(bio_err,
1523 "%s: -connect argument or target parameter malformed or ambiguous\n",
1524 prog);
1525 goto end;
1526 }
1527 }
1528
1529 if (proxystr != NULL) {
1530 int res;
1531 char *tmp_host = host, *tmp_port = port;
1532
1533 if (host == NULL || port == NULL) {
1534 BIO_printf(bio_err, "%s: -proxy requires use of -connect or target parameter\n", prog);
1535 goto opthelp;
1536 }
1537
1538 if (servername == NULL && !noservername) {
1539 servername = sname_alloc = OPENSSL_strdup(host);
1540 if (sname_alloc == NULL) {
1541 BIO_printf(bio_err, "%s: out of memory\n", prog);
1542 goto end;
1543 }
1544 }
1545
1546 /* Retain the original target host:port for use in the HTTP proxy connect string */
1547 thost = OPENSSL_strdup(host);
1548 tport = OPENSSL_strdup(port);
1549 if (thost == NULL || tport == NULL) {
1550 BIO_printf(bio_err, "%s: out of memory\n", prog);
1551 goto end;
1552 }
1553
1554 res = BIO_parse_hostserv(proxystr, &host, &port, BIO_PARSE_PRIO_HOST);
1555 if (tmp_host != host)
1556 OPENSSL_free(tmp_host);
1557 if (tmp_port != port)
1558 OPENSSL_free(tmp_port);
1559 if (!res) {
1560 BIO_printf(bio_err,
1561 "%s: -proxy argument malformed or ambiguous\n", prog);
1562 goto end;
1563 }
1564 }
1565
1566 if (bindstr != NULL) {
1567 int res;
1568 res = BIO_parse_hostserv(bindstr, &bindhost, &bindport,
1569 BIO_PARSE_PRIO_HOST);
1570 if (!res) {
1571 BIO_printf(bio_err,
1572 "%s: -bind argument parameter malformed or ambiguous\n",
1573 prog);
1574 goto end;
1575 }
1576 }
1577
1578#ifdef AF_UNIX
1579 if (socket_family == AF_UNIX && socket_type != SOCK_STREAM) {
1580 BIO_printf(bio_err,
1581 "Can't use unix sockets and datagrams together\n");
1582 goto end;
1583 }
1584#endif
1585
1586#ifndef OPENSSL_NO_SCTP
1587 if (protocol == IPPROTO_SCTP) {
1588 if (socket_type != SOCK_DGRAM) {
1589 BIO_printf(bio_err, "Can't use -sctp without DTLS\n");
1590 goto end;
1591 }
1592 /* SCTP is unusual. It uses DTLS over a SOCK_STREAM protocol */
1593 socket_type = SOCK_STREAM;
1594 }
1595#endif
1596
1597#if !defined(OPENSSL_NO_NEXTPROTONEG)
1598 next_proto.status = -1;
1599 if (next_proto_neg_in) {
1600 next_proto.data =
1601 next_protos_parse(&next_proto.len, next_proto_neg_in);
1602 if (next_proto.data == NULL) {
1603 BIO_printf(bio_err, "Error parsing -nextprotoneg argument\n");
1604 goto end;
1605 }
1606 } else
1607 next_proto.data = NULL;
1608#endif
1609
1610 if (!app_passwd(passarg, NULL, &pass, NULL)) {
1611 BIO_printf(bio_err, "Error getting private key password\n");
1612 goto end;
1613 }
1614
1615 if (!app_passwd(proxypassarg, NULL, &proxypass, NULL)) {
1616 BIO_printf(bio_err, "Error getting proxy password\n");
1617 goto end;
1618 }
1619
1620 if (proxypass != NULL && proxyuser == NULL) {
1621 BIO_printf(bio_err, "Error: Must specify proxy_user with proxy_pass\n");
1622 goto end;
1623 }
1624
1625 if (key_file == NULL)
1626 key_file = cert_file;
1627
1628 if (key_file != NULL) {
1629 key = load_key(key_file, key_format, 0, pass, e,
1630 "client certificate private key");
1631 if (key == NULL)
1632 goto end;
1633 }
1634
1635 if (cert_file != NULL) {
1636 cert = load_cert_pass(cert_file, cert_format, 1, pass,
1637 "client certificate");
1638 if (cert == NULL)
1639 goto end;
1640 }
1641
1642 if (chain_file != NULL) {
1643 if (!load_certs(chain_file, 0, &chain, pass, "client certificate chain"))
1644 goto end;
1645 }
1646
1647 if (crl_file != NULL) {
1648 X509_CRL *crl;
1649 crl = load_crl(crl_file, crl_format, 0, "CRL");
1650 if (crl == NULL)
1651 goto end;
1652 crls = sk_X509_CRL_new_null();
1653 if (crls == NULL || !sk_X509_CRL_push(crls, crl)) {
1654 BIO_puts(bio_err, "Error adding CRL\n");
1655 ERR_print_errors(bio_err);
1656 X509_CRL_free(crl);
1657 goto end;
1658 }
1659 }
1660
1661 if (!load_excert(&exc))
1662 goto end;
1663
1664 if (bio_c_out == NULL) {
1665 if (c_quiet && !c_debug) {
1666 bio_c_out = BIO_new(BIO_s_null());
1667 if (c_msg && bio_c_msg == NULL) {
1668 bio_c_msg = dup_bio_out(FORMAT_TEXT);
1669 if (bio_c_msg == NULL) {
1670 BIO_printf(bio_err, "Out of memory\n");
1671 goto end;
1672 }
1673 }
1674 } else {
1675 bio_c_out = dup_bio_out(FORMAT_TEXT);
1676 }
1677
1678 if (bio_c_out == NULL) {
1679 BIO_printf(bio_err, "Unable to create BIO\n");
1680 goto end;
1681 }
1682 }
1683#ifndef OPENSSL_NO_SRP
1684 if (!app_passwd(srppass, NULL, &srp_arg.srppassin, NULL)) {
1685 BIO_printf(bio_err, "Error getting password\n");
1686 goto end;
1687 }
1688#endif
1689
1690 ctx = SSL_CTX_new_ex(app_get0_libctx(), app_get0_propq(), meth);
1691 if (ctx == NULL) {
1692 ERR_print_errors(bio_err);
1693 goto end;
1694 }
1695
1696 SSL_CTX_clear_mode(ctx, SSL_MODE_AUTO_RETRY);
1697
1698 if (sdebug)
1699 ssl_ctx_security_debug(ctx, sdebug);
1700
1701 if (!config_ctx(cctx, ssl_args, ctx))
1702 goto end;
1703
1704 if (ssl_config != NULL) {
1705 if (SSL_CTX_config(ctx, ssl_config) == 0) {
1706 BIO_printf(bio_err, "Error using configuration \"%s\"\n",
1707 ssl_config);
1708 ERR_print_errors(bio_err);
1709 goto end;
1710 }
1711 }
1712
1713#ifndef OPENSSL_NO_SCTP
1714 if (protocol == IPPROTO_SCTP && sctp_label_bug == 1)
1715 SSL_CTX_set_mode(ctx, SSL_MODE_DTLS_SCTP_LABEL_LENGTH_BUG);
1716#endif
1717
1718 if (min_version != 0
1719 && SSL_CTX_set_min_proto_version(ctx, min_version) == 0)
1720 goto end;
1721 if (max_version != 0
1722 && SSL_CTX_set_max_proto_version(ctx, max_version) == 0)
1723 goto end;
1724
1725 if (ignore_unexpected_eof)
1726 SSL_CTX_set_options(ctx, SSL_OP_IGNORE_UNEXPECTED_EOF);
1727
1728 if (vpmtouched && !SSL_CTX_set1_param(ctx, vpm)) {
1729 BIO_printf(bio_err, "Error setting verify params\n");
1730 ERR_print_errors(bio_err);
1731 goto end;
1732 }
1733
1734 if (async) {
1735 SSL_CTX_set_mode(ctx, SSL_MODE_ASYNC);
1736 }
1737
1738 if (max_send_fragment > 0
1739 && !SSL_CTX_set_max_send_fragment(ctx, max_send_fragment)) {
1740 BIO_printf(bio_err, "%s: Max send fragment size %u is out of permitted range\n",
1741 prog, max_send_fragment);
1742 goto end;
1743 }
1744
1745 if (split_send_fragment > 0
1746 && !SSL_CTX_set_split_send_fragment(ctx, split_send_fragment)) {
1747 BIO_printf(bio_err, "%s: Split send fragment size %u is out of permitted range\n",
1748 prog, split_send_fragment);
1749 goto end;
1750 }
1751
1752 if (max_pipelines > 0
1753 && !SSL_CTX_set_max_pipelines(ctx, max_pipelines)) {
1754 BIO_printf(bio_err, "%s: Max pipelines %u is out of permitted range\n",
1755 prog, max_pipelines);
1756 goto end;
1757 }
1758
1759 if (read_buf_len > 0) {
1760 SSL_CTX_set_default_read_buffer_len(ctx, read_buf_len);
1761 }
1762
1763 if (maxfraglen > 0
1764 && !SSL_CTX_set_tlsext_max_fragment_length(ctx, maxfraglen)) {
1765 BIO_printf(bio_err,
1766 "%s: Max Fragment Length code %u is out of permitted values"
1767 "\n", prog, maxfraglen);
1768 goto end;
1769 }
1770
1771 if (!ssl_load_stores(ctx,
1772 vfyCApath, vfyCAfile, vfyCAstore,
1773 chCApath, chCAfile, chCAstore,
1774 crls, crl_download)) {
1775 BIO_printf(bio_err, "Error loading store locations\n");
1776 ERR_print_errors(bio_err);
1777 goto end;
1778 }
1779 if (ReqCAfile != NULL) {
1780 STACK_OF(X509_NAME) *nm = sk_X509_NAME_new_null();
1781
1782 if (nm == NULL || !SSL_add_file_cert_subjects_to_stack(nm, ReqCAfile)) {
1783 sk_X509_NAME_pop_free(nm, X509_NAME_free);
1784 BIO_printf(bio_err, "Error loading CA names\n");
1785 ERR_print_errors(bio_err);
1786 goto end;
1787 }
1788 SSL_CTX_set0_CA_list(ctx, nm);
1789 }
1790#ifndef OPENSSL_NO_ENGINE
1791 if (ssl_client_engine) {
1792 if (!SSL_CTX_set_client_cert_engine(ctx, ssl_client_engine)) {
1793 BIO_puts(bio_err, "Error setting client auth engine\n");
1794 ERR_print_errors(bio_err);
1795 release_engine(ssl_client_engine);
1796 goto end;
1797 }
1798 release_engine(ssl_client_engine);
1799 }
1800#endif
1801
1802#ifndef OPENSSL_NO_PSK
1803 if (psk_key != NULL) {
1804 if (c_debug)
1805 BIO_printf(bio_c_out, "PSK key given, setting client callback\n");
1806 SSL_CTX_set_psk_client_callback(ctx, psk_client_cb);
1807 }
1808#endif
1809 if (psksessf != NULL) {
1810 BIO *stmp = BIO_new_file(psksessf, "r");
1811
1812 if (stmp == NULL) {
1813 BIO_printf(bio_err, "Can't open PSK session file %s\n", psksessf);
1814 ERR_print_errors(bio_err);
1815 goto end;
1816 }
1817 psksess = PEM_read_bio_SSL_SESSION(stmp, NULL, 0, NULL);
1818 BIO_free(stmp);
1819 if (psksess == NULL) {
1820 BIO_printf(bio_err, "Can't read PSK session file %s\n", psksessf);
1821 ERR_print_errors(bio_err);
1822 goto end;
1823 }
1824 }
1825 if (psk_key != NULL || psksess != NULL)
1826 SSL_CTX_set_psk_use_session_callback(ctx, psk_use_session_cb);
1827
1828#ifndef OPENSSL_NO_SRTP
1829 if (srtp_profiles != NULL) {
1830 /* Returns 0 on success! */
1831 if (SSL_CTX_set_tlsext_use_srtp(ctx, srtp_profiles) != 0) {
1832 BIO_printf(bio_err, "Error setting SRTP profile\n");
1833 ERR_print_errors(bio_err);
1834 goto end;
1835 }
1836 }
1837#endif
1838
1839 if (exc != NULL)
1840 ssl_ctx_set_excert(ctx, exc);
1841
1842#if !defined(OPENSSL_NO_NEXTPROTONEG)
1843 if (next_proto.data != NULL)
1844 SSL_CTX_set_next_proto_select_cb(ctx, next_proto_cb, &next_proto);
1845#endif
1846 if (alpn_in) {
1847 size_t alpn_len;
1848 unsigned char *alpn = next_protos_parse(&alpn_len, alpn_in);
1849
1850 if (alpn == NULL) {
1851 BIO_printf(bio_err, "Error parsing -alpn argument\n");
1852 goto end;
1853 }
1854 /* Returns 0 on success! */
1855 if (SSL_CTX_set_alpn_protos(ctx, alpn, alpn_len) != 0) {
1856 BIO_printf(bio_err, "Error setting ALPN\n");
1857 goto end;
1858 }
1859 OPENSSL_free(alpn);
1860 }
1861
1862 for (i = 0; i < serverinfo_count; i++) {
1863 if (!SSL_CTX_add_client_custom_ext(ctx,
1864 serverinfo_types[i],
1865 NULL, NULL, NULL,
1866 serverinfo_cli_parse_cb, NULL)) {
1867 BIO_printf(bio_err,
1868 "Warning: Unable to add custom extension %u, skipping\n",
1869 serverinfo_types[i]);
1870 }
1871 }
1872
1873 if (state)
1874 SSL_CTX_set_info_callback(ctx, apps_ssl_info_callback);
1875
1876#ifndef OPENSSL_NO_CT
1877 /* Enable SCT processing, without early connection termination */
1878 if (ct_validation &&
1879 !SSL_CTX_enable_ct(ctx, SSL_CT_VALIDATION_PERMISSIVE)) {
1880 ERR_print_errors(bio_err);
1881 goto end;
1882 }
1883
1884 if (!ctx_set_ctlog_list_file(ctx, ctlog_file)) {
1885 if (ct_validation) {
1886 ERR_print_errors(bio_err);
1887 goto end;
1888 }
1889
1890 /*
1891 * If CT validation is not enabled, the log list isn't needed so don't
1892 * show errors or abort. We try to load it regardless because then we
1893 * can show the names of the logs any SCTs came from (SCTs may be seen
1894 * even with validation disabled).
1895 */
1896 ERR_clear_error();
1897 }
1898#endif
1899
1900 SSL_CTX_set_verify(ctx, verify, verify_callback);
1901
1902 if (!ctx_set_verify_locations(ctx, CAfile, noCAfile, CApath, noCApath,
1903 CAstore, noCAstore)) {
1904 ERR_print_errors(bio_err);
1905 goto end;
1906 }
1907
1908 ssl_ctx_add_crls(ctx, crls, crl_download);
1909
1910 if (!set_cert_key_stuff(ctx, cert, key, chain, build_chain))
1911 goto end;
1912
1913 if (!noservername) {
1914 tlsextcbp.biodebug = bio_err;
1915 SSL_CTX_set_tlsext_servername_callback(ctx, ssl_servername_cb);
1916 SSL_CTX_set_tlsext_servername_arg(ctx, &tlsextcbp);
1917 }
1918#ifndef OPENSSL_NO_SRP
1919 if (srp_arg.srplogin != NULL
1920 && !set_up_srp_arg(ctx, &srp_arg, srp_lateuser, c_msg, c_debug))
1921 goto end;
1922# endif
1923
1924 if (dane_tlsa_domain != NULL) {
1925 if (SSL_CTX_dane_enable(ctx) <= 0) {
1926 BIO_printf(bio_err,
1927 "%s: Error enabling DANE TLSA authentication.\n",
1928 prog);
1929 ERR_print_errors(bio_err);
1930 goto end;
1931 }
1932 }
1933
1934 /*
1935 * In TLSv1.3 NewSessionTicket messages arrive after the handshake and can
1936 * come at any time. Therefore we use a callback to write out the session
1937 * when we know about it. This approach works for < TLSv1.3 as well.
1938 */
1939 SSL_CTX_set_session_cache_mode(ctx, SSL_SESS_CACHE_CLIENT
1940 | SSL_SESS_CACHE_NO_INTERNAL_STORE);
1941 SSL_CTX_sess_set_new_cb(ctx, new_session_cb);
1942
1943 if (set_keylog_file(ctx, keylog_file))
1944 goto end;
1945
1946 con = SSL_new(ctx);
1947 if (con == NULL)
1948 goto end;
1949
1950 if (enable_pha)
1951 SSL_set_post_handshake_auth(con, 1);
1952
1953 if (sess_in != NULL) {
1954 SSL_SESSION *sess;
1955 BIO *stmp = BIO_new_file(sess_in, "r");
1956 if (stmp == NULL) {
1957 BIO_printf(bio_err, "Can't open session file %s\n", sess_in);
1958 ERR_print_errors(bio_err);
1959 goto end;
1960 }
1961 sess = PEM_read_bio_SSL_SESSION(stmp, NULL, 0, NULL);
1962 BIO_free(stmp);
1963 if (sess == NULL) {
1964 BIO_printf(bio_err, "Can't open session file %s\n", sess_in);
1965 ERR_print_errors(bio_err);
1966 goto end;
1967 }
1968 if (!SSL_set_session(con, sess)) {
1969 BIO_printf(bio_err, "Can't set session\n");
1970 ERR_print_errors(bio_err);
1971 goto end;
1972 }
1973
1974 SSL_SESSION_free(sess);
1975 }
1976
1977 if (fallback_scsv)
1978 SSL_set_mode(con, SSL_MODE_SEND_FALLBACK_SCSV);
1979
1980 if (!noservername && (servername != NULL || dane_tlsa_domain == NULL)) {
1981 if (servername == NULL) {
1982 if(host == NULL || is_dNS_name(host))
1983 servername = (host == NULL) ? "localhost" : host;
1984 }
1985 if (servername != NULL && !SSL_set_tlsext_host_name(con, servername)) {
1986 BIO_printf(bio_err, "Unable to set TLS servername extension.\n");
1987 ERR_print_errors(bio_err);
1988 goto end;
1989 }
1990 }
1991
1992 if (dane_tlsa_domain != NULL) {
1993 if (SSL_dane_enable(con, dane_tlsa_domain) <= 0) {
1994 BIO_printf(bio_err, "%s: Error enabling DANE TLSA "
1995 "authentication.\n", prog);
1996 ERR_print_errors(bio_err);
1997 goto end;
1998 }
1999 if (dane_tlsa_rrset == NULL) {
2000 BIO_printf(bio_err, "%s: DANE TLSA authentication requires at "
2001 "least one -dane_tlsa_rrdata option.\n", prog);
2002 goto end;
2003 }
2004 if (tlsa_import_rrset(con, dane_tlsa_rrset) <= 0) {
2005 BIO_printf(bio_err, "%s: Failed to import any TLSA "
2006 "records.\n", prog);
2007 goto end;
2008 }
2009 if (dane_ee_no_name)
2010 SSL_dane_set_flags(con, DANE_FLAG_NO_DANE_EE_NAMECHECKS);
2011 } else if (dane_tlsa_rrset != NULL) {
2012 BIO_printf(bio_err, "%s: DANE TLSA authentication requires the "
2013 "-dane_tlsa_domain option.\n", prog);
2014 goto end;
2015 }
2016
2017 re_start:
2018 if (init_client(&sock, host, port, bindhost, bindport, socket_family,
2019 socket_type, protocol) == 0) {
2020 BIO_printf(bio_err, "connect:errno=%d\n", get_last_socket_error());
2021 BIO_closesocket(sock);
2022 goto end;
2023 }
2024 BIO_printf(bio_c_out, "CONNECTED(%08X)\n", sock);
2025
2026 if (c_nbio) {
2027 if (!BIO_socket_nbio(sock, 1)) {
2028 ERR_print_errors(bio_err);
2029 goto end;
2030 }
2031 BIO_printf(bio_c_out, "Turned on non blocking io\n");
2032 }
2033#ifndef OPENSSL_NO_DTLS
2034 if (isdtls) {
2035 union BIO_sock_info_u peer_info;
2036
2037#ifndef OPENSSL_NO_SCTP
2038 if (protocol == IPPROTO_SCTP)
2039 sbio = BIO_new_dgram_sctp(sock, BIO_NOCLOSE);
2040 else
2041#endif
2042 sbio = BIO_new_dgram(sock, BIO_NOCLOSE);
2043
2044 if (sbio == NULL || (peer_info.addr = BIO_ADDR_new()) == NULL) {
2045 BIO_printf(bio_err, "memory allocation failure\n");
2046 BIO_free(sbio);
2047 BIO_closesocket(sock);
2048 goto end;
2049 }
2050 if (!BIO_sock_info(sock, BIO_SOCK_INFO_ADDRESS, &peer_info)) {
2051 BIO_printf(bio_err, "getsockname:errno=%d\n",
2052 get_last_socket_error());
2053 BIO_free(sbio);
2054 BIO_ADDR_free(peer_info.addr);
2055 BIO_closesocket(sock);
2056 goto end;
2057 }
2058
2059 (void)BIO_ctrl_set_connected(sbio, peer_info.addr);
2060 BIO_ADDR_free(peer_info.addr);
2061 peer_info.addr = NULL;
2062
2063 if (enable_timeouts) {
2064 timeout.tv_sec = 0;
2065 timeout.tv_usec = DGRAM_RCV_TIMEOUT;
2066 BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_RECV_TIMEOUT, 0, &timeout);
2067
2068 timeout.tv_sec = 0;
2069 timeout.tv_usec = DGRAM_SND_TIMEOUT;
2070 BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_SEND_TIMEOUT, 0, &timeout);
2071 }
2072
2073 if (socket_mtu) {
2074 if (socket_mtu < DTLS_get_link_min_mtu(con)) {
2075 BIO_printf(bio_err, "MTU too small. Must be at least %ld\n",
2076 DTLS_get_link_min_mtu(con));
2077 BIO_free(sbio);
2078 goto shut;
2079 }
2080 SSL_set_options(con, SSL_OP_NO_QUERY_MTU);
2081 if (!DTLS_set_link_mtu(con, socket_mtu)) {
2082 BIO_printf(bio_err, "Failed to set MTU\n");
2083 BIO_free(sbio);
2084 goto shut;
2085 }
2086 } else {
2087 /* want to do MTU discovery */
2088 BIO_ctrl(sbio, BIO_CTRL_DGRAM_MTU_DISCOVER, 0, NULL);
2089 }
2090 } else
2091#endif /* OPENSSL_NO_DTLS */
2092 sbio = BIO_new_socket(sock, BIO_NOCLOSE);
2093
2094 if (sbio == NULL) {
2095 BIO_printf(bio_err, "Unable to create BIO\n");
2096 ERR_print_errors(bio_err);
2097 BIO_closesocket(sock);
2098 goto end;
2099 }
2100
2101 if (nbio_test) {
2102 BIO *test;
2103
2104 test = BIO_new(BIO_f_nbio_test());
2105 if (test == NULL) {
2106 BIO_printf(bio_err, "Unable to create BIO\n");
2107 BIO_free(sbio);
2108 goto shut;
2109 }
2110 sbio = BIO_push(test, sbio);
2111 }
2112
2113 if (c_debug) {
2114 BIO_set_callback_ex(sbio, bio_dump_callback);
2115 BIO_set_callback_arg(sbio, (char *)bio_c_out);
2116 }
2117 if (c_msg) {
2118#ifndef OPENSSL_NO_SSL_TRACE
2119 if (c_msg == 2)
2120 SSL_set_msg_callback(con, SSL_trace);
2121 else
2122#endif
2123 SSL_set_msg_callback(con, msg_cb);
2124 SSL_set_msg_callback_arg(con, bio_c_msg ? bio_c_msg : bio_c_out);
2125 }
2126
2127 if (c_tlsextdebug) {
2128 SSL_set_tlsext_debug_callback(con, tlsext_cb);
2129 SSL_set_tlsext_debug_arg(con, bio_c_out);
2130 }
2131#ifndef OPENSSL_NO_OCSP
2132 if (c_status_req) {
2133 SSL_set_tlsext_status_type(con, TLSEXT_STATUSTYPE_ocsp);
2134 SSL_CTX_set_tlsext_status_cb(ctx, ocsp_resp_cb);
2135 SSL_CTX_set_tlsext_status_arg(ctx, bio_c_out);
2136 }
2137#endif
2138
2139 SSL_set_bio(con, sbio, sbio);
2140 SSL_set_connect_state(con);
2141
2142 /* ok, lets connect */
2143 if (fileno_stdin() > SSL_get_fd(con))
2144 width = fileno_stdin() + 1;
2145 else
2146 width = SSL_get_fd(con) + 1;
2147
2148 read_tty = 1;
2149 write_tty = 0;
2150 tty_on = 0;
2151 read_ssl = 1;
2152 write_ssl = 1;
2153
2154 cbuf_len = 0;
2155 cbuf_off = 0;
2156 sbuf_len = 0;
2157 sbuf_off = 0;
2158
2159 if (proxystr != NULL) {
2160 /* Here we must use the connect string target host & port */
2161 if (!OSSL_HTTP_proxy_connect(sbio, thost, tport, proxyuser, proxypass,
2162 0 /* no timeout */, bio_err, prog))
2163 goto shut;
2164 }
2165
2166 switch ((PROTOCOL_CHOICE) starttls_proto) {
2167 case PROTO_OFF:
2168 break;
2169 case PROTO_LMTP:
2170 case PROTO_SMTP:
2171 {
2172 /*
2173 * This is an ugly hack that does a lot of assumptions. We do
2174 * have to handle multi-line responses which may come in a single
2175 * packet or not. We therefore have to use BIO_gets() which does
2176 * need a buffering BIO. So during the initial chitchat we do
2177 * push a buffering BIO into the chain that is removed again
2178 * later on to not disturb the rest of the s_client operation.
2179 */
2180 int foundit = 0;
2181 BIO *fbio = BIO_new(BIO_f_buffer());
2182
2183 if (fbio == NULL) {
2184 BIO_printf(bio_err, "Unable to create BIO\n");
2185 goto shut;
2186 }
2187 BIO_push(fbio, sbio);
2188 /* Wait for multi-line response to end from LMTP or SMTP */
2189 do {
2190 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2191 } while (mbuf_len > 3 && mbuf[3] == '-');
2192 if (protohost == NULL)
2193 protohost = "mail.example.com";
2194 if (starttls_proto == (int)PROTO_LMTP)
2195 BIO_printf(fbio, "LHLO %s\r\n", protohost);
2196 else
2197 BIO_printf(fbio, "EHLO %s\r\n", protohost);
2198 (void)BIO_flush(fbio);
2199 /*
2200 * Wait for multi-line response to end LHLO LMTP or EHLO SMTP
2201 * response.
2202 */
2203 do {
2204 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2205 if (strstr(mbuf, "STARTTLS"))
2206 foundit = 1;
2207 } while (mbuf_len > 3 && mbuf[3] == '-');
2208 (void)BIO_flush(fbio);
2209 BIO_pop(fbio);
2210 BIO_free(fbio);
2211 if (!foundit)
2212 BIO_printf(bio_err,
2213 "Didn't find STARTTLS in server response,"
2214 " trying anyway...\n");
2215 BIO_printf(sbio, "STARTTLS\r\n");
2216 BIO_read(sbio, sbuf, BUFSIZZ);
2217 }
2218 break;
2219 case PROTO_POP3:
2220 {
2221 BIO_read(sbio, mbuf, BUFSIZZ);
2222 BIO_printf(sbio, "STLS\r\n");
2223 mbuf_len = BIO_read(sbio, sbuf, BUFSIZZ);
2224 if (mbuf_len < 0) {
2225 BIO_printf(bio_err, "BIO_read failed\n");
2226 goto end;
2227 }
2228 }
2229 break;
2230 case PROTO_IMAP:
2231 {
2232 int foundit = 0;
2233 BIO *fbio = BIO_new(BIO_f_buffer());
2234
2235 if (fbio == NULL) {
2236 BIO_printf(bio_err, "Unable to create BIO\n");
2237 goto shut;
2238 }
2239 BIO_push(fbio, sbio);
2240 BIO_gets(fbio, mbuf, BUFSIZZ);
2241 /* STARTTLS command requires CAPABILITY... */
2242 BIO_printf(fbio, ". CAPABILITY\r\n");
2243 (void)BIO_flush(fbio);
2244 /* wait for multi-line CAPABILITY response */
2245 do {
2246 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2247 if (strstr(mbuf, "STARTTLS"))
2248 foundit = 1;
2249 }
2250 while (mbuf_len > 3 && mbuf[0] != '.');
2251 (void)BIO_flush(fbio);
2252 BIO_pop(fbio);
2253 BIO_free(fbio);
2254 if (!foundit)
2255 BIO_printf(bio_err,
2256 "Didn't find STARTTLS in server response,"
2257 " trying anyway...\n");
2258 BIO_printf(sbio, ". STARTTLS\r\n");
2259 BIO_read(sbio, sbuf, BUFSIZZ);
2260 }
2261 break;
2262 case PROTO_FTP:
2263 {
2264 BIO *fbio = BIO_new(BIO_f_buffer());
2265
2266 if (fbio == NULL) {
2267 BIO_printf(bio_err, "Unable to create BIO\n");
2268 goto shut;
2269 }
2270 BIO_push(fbio, sbio);
2271 /* wait for multi-line response to end from FTP */
2272 do {
2273 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2274 }
2275 while (mbuf_len > 3 && (!isdigit(mbuf[0]) || !isdigit(mbuf[1]) || !isdigit(mbuf[2]) || mbuf[3] != ' '));
2276 (void)BIO_flush(fbio);
2277 BIO_pop(fbio);
2278 BIO_free(fbio);
2279 BIO_printf(sbio, "AUTH TLS\r\n");
2280 BIO_read(sbio, sbuf, BUFSIZZ);
2281 }
2282 break;
2283 case PROTO_XMPP:
2284 case PROTO_XMPP_SERVER:
2285 {
2286 int seen = 0;
2287 BIO_printf(sbio, "<stream:stream "
2288 "xmlns:stream='http://etherx.jabber.org/streams' "
2289 "xmlns='jabber:%s' to='%s' version='1.0'>",
2290 starttls_proto == PROTO_XMPP ? "client" : "server",
2291 protohost ? protohost : host);
2292 seen = BIO_read(sbio, mbuf, BUFSIZZ);
2293 if (seen < 0) {
2294 BIO_printf(bio_err, "BIO_read failed\n");
2295 goto end;
2296 }
2297 mbuf[seen] = '\0';
2298 while (!strstr
2299 (mbuf, "<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'")
2300 && !strstr(mbuf,
2301 "<starttls xmlns=\"urn:ietf:params:xml:ns:xmpp-tls\""))
2302 {
2303 seen = BIO_read(sbio, mbuf, BUFSIZZ);
2304
2305 if (seen <= 0)
2306 goto shut;
2307
2308 mbuf[seen] = '\0';
2309 }
2310 BIO_printf(sbio,
2311 "<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'/>");
2312 seen = BIO_read(sbio, sbuf, BUFSIZZ);
2313 if (seen < 0) {
2314 BIO_printf(bio_err, "BIO_read failed\n");
2315 goto shut;
2316 }
2317 sbuf[seen] = '\0';
2318 if (!strstr(sbuf, "<proceed"))
2319 goto shut;
2320 mbuf[0] = '\0';
2321 }
2322 break;
2323 case PROTO_TELNET:
2324 {
2325 static const unsigned char tls_do[] = {
2326 /* IAC DO START_TLS */
2327 255, 253, 46
2328 };
2329 static const unsigned char tls_will[] = {
2330 /* IAC WILL START_TLS */
2331 255, 251, 46
2332 };
2333 static const unsigned char tls_follows[] = {
2334 /* IAC SB START_TLS FOLLOWS IAC SE */
2335 255, 250, 46, 1, 255, 240
2336 };
2337 int bytes;
2338
2339 /* Telnet server should demand we issue START_TLS */
2340 bytes = BIO_read(sbio, mbuf, BUFSIZZ);
2341 if (bytes != 3 || memcmp(mbuf, tls_do, 3) != 0)
2342 goto shut;
2343 /* Agree to issue START_TLS and send the FOLLOWS sub-command */
2344 BIO_write(sbio, tls_will, 3);
2345 BIO_write(sbio, tls_follows, 6);
2346 (void)BIO_flush(sbio);
2347 /* Telnet server also sent the FOLLOWS sub-command */
2348 bytes = BIO_read(sbio, mbuf, BUFSIZZ);
2349 if (bytes != 6 || memcmp(mbuf, tls_follows, 6) != 0)
2350 goto shut;
2351 }
2352 break;
2353 case PROTO_IRC:
2354 {
2355 int numeric;
2356 BIO *fbio = BIO_new(BIO_f_buffer());
2357
2358 if (fbio == NULL) {
2359 BIO_printf(bio_err, "Unable to create BIO\n");
2360 goto end;
2361 }
2362 BIO_push(fbio, sbio);
2363 BIO_printf(fbio, "STARTTLS\r\n");
2364 (void)BIO_flush(fbio);
2365 width = SSL_get_fd(con) + 1;
2366
2367 do {
2368 numeric = 0;
2369
2370 FD_ZERO(&readfds);
2371 openssl_fdset(SSL_get_fd(con), &readfds);
2372 timeout.tv_sec = S_CLIENT_IRC_READ_TIMEOUT;
2373 timeout.tv_usec = 0;
2374 /*
2375 * If the IRCd doesn't respond within
2376 * S_CLIENT_IRC_READ_TIMEOUT seconds, assume
2377 * it doesn't support STARTTLS. Many IRCds
2378 * will not give _any_ sort of response to a
2379 * STARTTLS command when it's not supported.
2380 */
2381 if (!BIO_get_buffer_num_lines(fbio)
2382 && !BIO_pending(fbio)
2383 && !BIO_pending(sbio)
2384 && select(width, (void *)&readfds, NULL, NULL,
2385 &timeout) < 1) {
2386 BIO_printf(bio_err,
2387 "Timeout waiting for response (%d seconds).\n",
2388 S_CLIENT_IRC_READ_TIMEOUT);
2389 break;
2390 }
2391
2392 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2393 if (mbuf_len < 1 || sscanf(mbuf, "%*s %d", &numeric) != 1)
2394 break;
2395 /* :example.net 451 STARTTLS :You have not registered */
2396 /* :example.net 421 STARTTLS :Unknown command */
2397 if ((numeric == 451 || numeric == 421)
2398 && strstr(mbuf, "STARTTLS") != NULL) {
2399 BIO_printf(bio_err, "STARTTLS not supported: %s", mbuf);
2400 break;
2401 }
2402 if (numeric == 691) {
2403 BIO_printf(bio_err, "STARTTLS negotiation failed: ");
2404 ERR_print_errors(bio_err);
2405 break;
2406 }
2407 } while (numeric != 670);
2408
2409 (void)BIO_flush(fbio);
2410 BIO_pop(fbio);
2411 BIO_free(fbio);
2412 if (numeric != 670) {
2413 BIO_printf(bio_err, "Server does not support STARTTLS.\n");
2414 ret = 1;
2415 goto shut;
2416 }
2417 }
2418 break;
2419 case PROTO_MYSQL:
2420 {
2421 /* SSL request packet */
2422 static const unsigned char ssl_req[] = {
2423 /* payload_length, sequence_id */
2424 0x20, 0x00, 0x00, 0x01,
2425 /* payload */
2426 /* capability flags, CLIENT_SSL always set */
2427 0x85, 0xae, 0x7f, 0x00,
2428 /* max-packet size */
2429 0x00, 0x00, 0x00, 0x01,
2430 /* character set */
2431 0x21,
2432 /* string[23] reserved (all [0]) */
2433 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
2434 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
2435 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
2436 };
2437 int bytes = 0;
2438 int ssl_flg = 0x800;
2439 int pos;
2440 const unsigned char *packet = (const unsigned char *)sbuf;
2441
2442 /* Receiving Initial Handshake packet. */
2443 bytes = BIO_read(sbio, (void *)packet, BUFSIZZ);
2444 if (bytes < 0) {
2445 BIO_printf(bio_err, "BIO_read failed\n");
2446 goto shut;
2447 /* Packet length[3], Packet number[1] + minimum payload[17] */
2448 } else if (bytes < 21) {
2449 BIO_printf(bio_err, "MySQL packet too short.\n");
2450 goto shut;
2451 } else if (bytes != (4 + packet[0] +
2452 (packet[1] << 8) +
2453 (packet[2] << 16))) {
2454 BIO_printf(bio_err, "MySQL packet length does not match.\n");
2455 goto shut;
2456 /* protocol version[1] */
2457 } else if (packet[4] != 0xA) {
2458 BIO_printf(bio_err,
2459 "Only MySQL protocol version 10 is supported.\n");
2460 goto shut;
2461 }
2462
2463 pos = 5;
2464 /* server version[string+NULL] */
2465 for (;;) {
2466 if (pos >= bytes) {
2467 BIO_printf(bio_err, "Cannot confirm server version. ");
2468 goto shut;
2469 } else if (packet[pos++] == '\0') {
2470 break;
2471 }
2472 }
2473
2474 /* make sure we have at least 15 bytes left in the packet */
2475 if (pos + 15 > bytes) {
2476 BIO_printf(bio_err,
2477 "MySQL server handshake packet is broken.\n");
2478 goto shut;
2479 }
2480
2481 pos += 12; /* skip over conn id[4] + SALT[8] */
2482 if (packet[pos++] != '\0') { /* verify filler */
2483 BIO_printf(bio_err,
2484 "MySQL packet is broken.\n");
2485 goto shut;
2486 }
2487
2488 /* capability flags[2] */
2489 if (!((packet[pos] + (packet[pos + 1] << 8)) & ssl_flg)) {
2490 BIO_printf(bio_err, "MySQL server does not support SSL.\n");
2491 goto shut;
2492 }
2493
2494 /* Sending SSL Handshake packet. */
2495 BIO_write(sbio, ssl_req, sizeof(ssl_req));
2496 (void)BIO_flush(sbio);
2497 }
2498 break;
2499 case PROTO_POSTGRES:
2500 {
2501 static const unsigned char ssl_request[] = {
2502 /* Length SSLRequest */
2503 0, 0, 0, 8, 4, 210, 22, 47
2504 };
2505 int bytes;
2506
2507 /* Send SSLRequest packet */
2508 BIO_write(sbio, ssl_request, 8);
2509 (void)BIO_flush(sbio);
2510
2511 /* Reply will be a single S if SSL is enabled */
2512 bytes = BIO_read(sbio, sbuf, BUFSIZZ);
2513 if (bytes != 1 || sbuf[0] != 'S')
2514 goto shut;
2515 }
2516 break;
2517 case PROTO_NNTP:
2518 {
2519 int foundit = 0;
2520 BIO *fbio = BIO_new(BIO_f_buffer());
2521
2522 if (fbio == NULL) {
2523 BIO_printf(bio_err, "Unable to create BIO\n");
2524 goto end;
2525 }
2526 BIO_push(fbio, sbio);
2527 BIO_gets(fbio, mbuf, BUFSIZZ);
2528 /* STARTTLS command requires CAPABILITIES... */
2529 BIO_printf(fbio, "CAPABILITIES\r\n");
2530 (void)BIO_flush(fbio);
2531 BIO_gets(fbio, mbuf, BUFSIZZ);
2532 /* no point in trying to parse the CAPABILITIES response if there is none */
2533 if (strstr(mbuf, "101") != NULL) {
2534 /* wait for multi-line CAPABILITIES response */
2535 do {
2536 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2537 if (strstr(mbuf, "STARTTLS"))
2538 foundit = 1;
2539 } while (mbuf_len > 1 && mbuf[0] != '.');
2540 }
2541 (void)BIO_flush(fbio);
2542 BIO_pop(fbio);
2543 BIO_free(fbio);
2544 if (!foundit)
2545 BIO_printf(bio_err,
2546 "Didn't find STARTTLS in server response,"
2547 " trying anyway...\n");
2548 BIO_printf(sbio, "STARTTLS\r\n");
2549 mbuf_len = BIO_read(sbio, mbuf, BUFSIZZ);
2550 if (mbuf_len < 0) {
2551 BIO_printf(bio_err, "BIO_read failed\n");
2552 goto end;
2553 }
2554 mbuf[mbuf_len] = '\0';
2555 if (strstr(mbuf, "382") == NULL) {
2556 BIO_printf(bio_err, "STARTTLS failed: %s", mbuf);
2557 goto shut;
2558 }
2559 }
2560 break;
2561 case PROTO_SIEVE:
2562 {
2563 int foundit = 0;
2564 BIO *fbio = BIO_new(BIO_f_buffer());
2565
2566 if (fbio == NULL) {
2567 BIO_printf(bio_err, "Unable to create BIO\n");
2568 goto end;
2569 }
2570 BIO_push(fbio, sbio);
2571 /* wait for multi-line response to end from Sieve */
2572 do {
2573 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2574 /*
2575 * According to RFC 5804 § 1.7, capability
2576 * is case-insensitive, make it uppercase
2577 */
2578 if (mbuf_len > 1 && mbuf[0] == '"') {
2579 make_uppercase(mbuf);
2580 if (strncmp(mbuf, "\"STARTTLS\"", 10) == 0)
2581 foundit = 1;
2582 }
2583 } while (mbuf_len > 1 && mbuf[0] == '"');
2584 (void)BIO_flush(fbio);
2585 BIO_pop(fbio);
2586 BIO_free(fbio);
2587 if (!foundit)
2588 BIO_printf(bio_err,
2589 "Didn't find STARTTLS in server response,"
2590 " trying anyway...\n");
2591 BIO_printf(sbio, "STARTTLS\r\n");
2592 mbuf_len = BIO_read(sbio, mbuf, BUFSIZZ);
2593 if (mbuf_len < 0) {
2594 BIO_printf(bio_err, "BIO_read failed\n");
2595 goto end;
2596 }
2597 mbuf[mbuf_len] = '\0';
2598 if (mbuf_len < 2) {
2599 BIO_printf(bio_err, "STARTTLS failed: %s", mbuf);
2600 goto shut;
2601 }
2602 /*
2603 * According to RFC 5804 § 2.2, response codes are case-
2604 * insensitive, make it uppercase but preserve the response.
2605 */
2606 strncpy(sbuf, mbuf, 2);
2607 make_uppercase(sbuf);
2608 if (strncmp(sbuf, "OK", 2) != 0) {
2609 BIO_printf(bio_err, "STARTTLS not supported: %s", mbuf);
2610 goto shut;
2611 }
2612 }
2613 break;
2614 case PROTO_LDAP:
2615 {
2616 /* StartTLS Operation according to RFC 4511 */
2617 static char ldap_tls_genconf[] = "asn1=SEQUENCE:LDAPMessage\n"
2618 "[LDAPMessage]\n"
2619 "messageID=INTEGER:1\n"
2620 "extendedReq=EXPLICIT:23A,IMPLICIT:0C,"
2621 "FORMAT:ASCII,OCT:1.3.6.1.4.1.1466.20037\n";
2622 long errline = -1;
2623 char *genstr = NULL;
2624 int result = -1;
2625 ASN1_TYPE *atyp = NULL;
2626 BIO *ldapbio = BIO_new(BIO_s_mem());
2627 CONF *cnf = NCONF_new(NULL);
2628
2629 if (ldapbio == NULL || cnf == NULL) {
2630 BIO_free(ldapbio);
2631 NCONF_free(cnf);
2632 goto end;
2633 }
2634 BIO_puts(ldapbio, ldap_tls_genconf);
2635 if (NCONF_load_bio(cnf, ldapbio, &errline) <= 0) {
2636 BIO_free(ldapbio);
2637 NCONF_free(cnf);
2638 if (errline <= 0) {
2639 BIO_printf(bio_err, "NCONF_load_bio failed\n");
2640 goto end;
2641 } else {
2642 BIO_printf(bio_err, "Error on line %ld\n", errline);
2643 goto end;
2644 }
2645 }
2646 BIO_free(ldapbio);
2647 genstr = NCONF_get_string(cnf, "default", "asn1");
2648 if (genstr == NULL) {
2649 NCONF_free(cnf);
2650 BIO_printf(bio_err, "NCONF_get_string failed\n");
2651 goto end;
2652 }
2653 atyp = ASN1_generate_nconf(genstr, cnf);
2654 if (atyp == NULL) {
2655 NCONF_free(cnf);
2656 BIO_printf(bio_err, "ASN1_generate_nconf failed\n");
2657 goto end;
2658 }
2659 NCONF_free(cnf);
2660
2661 /* Send SSLRequest packet */
2662 BIO_write(sbio, atyp->value.sequence->data,
2663 atyp->value.sequence->length);
2664 (void)BIO_flush(sbio);
2665 ASN1_TYPE_free(atyp);
2666
2667 mbuf_len = BIO_read(sbio, mbuf, BUFSIZZ);
2668 if (mbuf_len < 0) {
2669 BIO_printf(bio_err, "BIO_read failed\n");
2670 goto end;
2671 }
2672 result = ldap_ExtendedResponse_parse(mbuf, mbuf_len);
2673 if (result < 0) {
2674 BIO_printf(bio_err, "ldap_ExtendedResponse_parse failed\n");
2675 goto shut;
2676 } else if (result > 0) {
2677 BIO_printf(bio_err, "STARTTLS failed, LDAP Result Code: %i\n",
2678 result);
2679 goto shut;
2680 }
2681 mbuf_len = 0;
2682 }
2683 break;
2684 }
2685
2686 if (early_data_file != NULL
2687 && ((SSL_get0_session(con) != NULL
2688 && SSL_SESSION_get_max_early_data(SSL_get0_session(con)) > 0)
2689 || (psksess != NULL
2690 && SSL_SESSION_get_max_early_data(psksess) > 0))) {
2691 BIO *edfile = BIO_new_file(early_data_file, "r");
2692 size_t readbytes, writtenbytes;
2693 int finish = 0;
2694
2695 if (edfile == NULL) {
2696 BIO_printf(bio_err, "Cannot open early data file\n");
2697 goto shut;
2698 }
2699
2700 while (!finish) {
2701 if (!BIO_read_ex(edfile, cbuf, BUFSIZZ, &readbytes))
2702 finish = 1;
2703
2704 while (!SSL_write_early_data(con, cbuf, readbytes, &writtenbytes)) {
2705 switch (SSL_get_error(con, 0)) {
2706 case SSL_ERROR_WANT_WRITE:
2707 case SSL_ERROR_WANT_ASYNC:
2708 case SSL_ERROR_WANT_READ:
2709 /* Just keep trying - busy waiting */
2710 continue;
2711 default:
2712 BIO_printf(bio_err, "Error writing early data\n");
2713 BIO_free(edfile);
2714 ERR_print_errors(bio_err);
2715 goto shut;
2716 }
2717 }
2718 }
2719
2720 BIO_free(edfile);
2721 }
2722
2723 for (;;) {
2724 FD_ZERO(&readfds);
2725 FD_ZERO(&writefds);
2726
2727 if (SSL_is_dtls(con) && DTLSv1_get_timeout(con, &timeout))
2728 timeoutp = &timeout;
2729 else
2730 timeoutp = NULL;
2731
2732 if (!SSL_is_init_finished(con) && SSL_total_renegotiations(con) == 0
2733 && SSL_get_key_update_type(con) == SSL_KEY_UPDATE_NONE) {
2734 in_init = 1;
2735 tty_on = 0;
2736 } else {
2737 tty_on = 1;
2738 if (in_init) {
2739 in_init = 0;
2740 if (c_brief) {
2741 BIO_puts(bio_err, "CONNECTION ESTABLISHED\n");
2742 print_ssl_summary(con);
2743 }
2744
2745 print_stuff(bio_c_out, con, full_log);
2746 if (full_log > 0)
2747 full_log--;
2748
2749 if (starttls_proto) {
2750 BIO_write(bio_err, mbuf, mbuf_len);
2751 /* We don't need to know any more */
2752 if (!reconnect)
2753 starttls_proto = PROTO_OFF;
2754 }
2755
2756 if (reconnect) {
2757 reconnect--;
2758 BIO_printf(bio_c_out,
2759 "drop connection and then reconnect\n");
2760 do_ssl_shutdown(con);
2761 SSL_set_connect_state(con);
2762 BIO_closesocket(SSL_get_fd(con));
2763 goto re_start;
2764 }
2765 }
2766 }
2767
2768 ssl_pending = read_ssl && SSL_has_pending(con);
2769
2770 if (!ssl_pending) {
2771#if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS)
2772 if (tty_on) {
2773 /*
2774 * Note that select() returns when read _would not block_,
2775 * and EOF satisfies that. To avoid a CPU-hogging loop,
2776 * set the flag so we exit.
2777 */
2778 if (read_tty && !at_eof)
2779 openssl_fdset(fileno_stdin(), &readfds);
2780#if !defined(OPENSSL_SYS_VMS)
2781 if (write_tty)
2782 openssl_fdset(fileno_stdout(), &writefds);
2783#endif
2784 }
2785 if (read_ssl)
2786 openssl_fdset(SSL_get_fd(con), &readfds);
2787 if (write_ssl)
2788 openssl_fdset(SSL_get_fd(con), &writefds);
2789#else
2790 if (!tty_on || !write_tty) {
2791 if (read_ssl)
2792 openssl_fdset(SSL_get_fd(con), &readfds);
2793 if (write_ssl)
2794 openssl_fdset(SSL_get_fd(con), &writefds);
2795 }
2796#endif
2797
2798 /*
2799 * Note: under VMS with SOCKETSHR the second parameter is
2800 * currently of type (int *) whereas under other systems it is
2801 * (void *) if you don't have a cast it will choke the compiler:
2802 * if you do have a cast then you can either go for (int *) or
2803 * (void *).
2804 */
2805#if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
2806 /*
2807 * Under Windows/DOS we make the assumption that we can always
2808 * write to the tty: therefore if we need to write to the tty we
2809 * just fall through. Otherwise we timeout the select every
2810 * second and see if there are any keypresses. Note: this is a
2811 * hack, in a proper Windows application we wouldn't do this.
2812 */
2813 i = 0;
2814 if (!write_tty) {
2815 if (read_tty) {
2816 tv.tv_sec = 1;
2817 tv.tv_usec = 0;
2818 i = select(width, (void *)&readfds, (void *)&writefds,
2819 NULL, &tv);
2820 if (!i && (!has_stdin_waiting() || !read_tty))
2821 continue;
2822 } else
2823 i = select(width, (void *)&readfds, (void *)&writefds,
2824 NULL, timeoutp);
2825 }
2826#else
2827 i = select(width, (void *)&readfds, (void *)&writefds,
2828 NULL, timeoutp);
2829#endif
2830 if (i < 0) {
2831 BIO_printf(bio_err, "bad select %d\n",
2832 get_last_socket_error());
2833 goto shut;
2834 }
2835 }
2836
2837 if (SSL_is_dtls(con) && DTLSv1_handle_timeout(con) > 0)
2838 BIO_printf(bio_err, "TIMEOUT occurred\n");
2839
2840 if (!ssl_pending && FD_ISSET(SSL_get_fd(con), &writefds)) {
2841 k = SSL_write(con, &(cbuf[cbuf_off]), (unsigned int)cbuf_len);
2842 switch (SSL_get_error(con, k)) {
2843 case SSL_ERROR_NONE:
2844 cbuf_off += k;
2845 cbuf_len -= k;
2846 if (k <= 0)
2847 goto end;
2848 /* we have done a write(con,NULL,0); */
2849 if (cbuf_len <= 0) {
2850 read_tty = 1;
2851 write_ssl = 0;
2852 } else { /* if (cbuf_len > 0) */
2853
2854 read_tty = 0;
2855 write_ssl = 1;
2856 }
2857 break;
2858 case SSL_ERROR_WANT_WRITE:
2859 BIO_printf(bio_c_out, "write W BLOCK\n");
2860 write_ssl = 1;
2861 read_tty = 0;
2862 break;
2863 case SSL_ERROR_WANT_ASYNC:
2864 BIO_printf(bio_c_out, "write A BLOCK\n");
2865 wait_for_async(con);
2866 write_ssl = 1;
2867 read_tty = 0;
2868 break;
2869 case SSL_ERROR_WANT_READ:
2870 BIO_printf(bio_c_out, "write R BLOCK\n");
2871 write_tty = 0;
2872 read_ssl = 1;
2873 write_ssl = 0;
2874 break;
2875 case SSL_ERROR_WANT_X509_LOOKUP:
2876 BIO_printf(bio_c_out, "write X BLOCK\n");
2877 break;
2878 case SSL_ERROR_ZERO_RETURN:
2879 if (cbuf_len != 0) {
2880 BIO_printf(bio_c_out, "shutdown\n");
2881 ret = 0;
2882 goto shut;
2883 } else {
2884 read_tty = 1;
2885 write_ssl = 0;
2886 break;
2887 }
2888
2889 case SSL_ERROR_SYSCALL:
2890 if ((k != 0) || (cbuf_len != 0)) {
2891 BIO_printf(bio_err, "write:errno=%d\n",
2892 get_last_socket_error());
2893 goto shut;
2894 } else {
2895 read_tty = 1;
2896 write_ssl = 0;
2897 }
2898 break;
2899 case SSL_ERROR_WANT_ASYNC_JOB:
2900 /* This shouldn't ever happen in s_client - treat as an error */
2901 case SSL_ERROR_SSL:
2902 ERR_print_errors(bio_err);
2903 goto shut;
2904 }
2905 }
2906#if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_VMS)
2907 /* Assume Windows/DOS/BeOS can always write */
2908 else if (!ssl_pending && write_tty)
2909#else
2910 else if (!ssl_pending && FD_ISSET(fileno_stdout(), &writefds))
2911#endif
2912 {
2913#ifdef CHARSET_EBCDIC
2914 ascii2ebcdic(&(sbuf[sbuf_off]), &(sbuf[sbuf_off]), sbuf_len);
2915#endif
2916 i = raw_write_stdout(&(sbuf[sbuf_off]), sbuf_len);
2917
2918 if (i <= 0) {
2919 BIO_printf(bio_c_out, "DONE\n");
2920 ret = 0;
2921 goto shut;
2922 }
2923
2924 sbuf_len -= i;
2925 sbuf_off += i;
2926 if (sbuf_len <= 0) {
2927 read_ssl = 1;
2928 write_tty = 0;
2929 }
2930 } else if (ssl_pending || FD_ISSET(SSL_get_fd(con), &readfds)) {
2931#ifdef RENEG
2932 {
2933 static int iiii;
2934 if (++iiii == 52) {
2935 SSL_renegotiate(con);
2936 iiii = 0;
2937 }
2938 }
2939#endif
2940 k = SSL_read(con, sbuf, 1024 /* BUFSIZZ */ );
2941
2942 switch (SSL_get_error(con, k)) {
2943 case SSL_ERROR_NONE:
2944 if (k <= 0)
2945 goto end;
2946 sbuf_off = 0;
2947 sbuf_len = k;
2948
2949 read_ssl = 0;
2950 write_tty = 1;
2951 break;
2952 case SSL_ERROR_WANT_ASYNC:
2953 BIO_printf(bio_c_out, "read A BLOCK\n");
2954 wait_for_async(con);
2955 write_tty = 0;
2956 read_ssl = 1;
2957 if ((read_tty == 0) && (write_ssl == 0))
2958 write_ssl = 1;
2959 break;
2960 case SSL_ERROR_WANT_WRITE:
2961 BIO_printf(bio_c_out, "read W BLOCK\n");
2962 write_ssl = 1;
2963 read_tty = 0;
2964 break;
2965 case SSL_ERROR_WANT_READ:
2966 BIO_printf(bio_c_out, "read R BLOCK\n");
2967 write_tty = 0;
2968 read_ssl = 1;
2969 if ((read_tty == 0) && (write_ssl == 0))
2970 write_ssl = 1;
2971 break;
2972 case SSL_ERROR_WANT_X509_LOOKUP:
2973 BIO_printf(bio_c_out, "read X BLOCK\n");
2974 break;
2975 case SSL_ERROR_SYSCALL:
2976 ret = get_last_socket_error();
2977 if (c_brief)
2978 BIO_puts(bio_err, "CONNECTION CLOSED BY SERVER\n");
2979 else
2980 BIO_printf(bio_err, "read:errno=%d\n", ret);
2981 goto shut;
2982 case SSL_ERROR_ZERO_RETURN:
2983 BIO_printf(bio_c_out, "closed\n");
2984 ret = 0;
2985 goto shut;
2986 case SSL_ERROR_WANT_ASYNC_JOB:
2987 /* This shouldn't ever happen in s_client. Treat as an error */
2988 case SSL_ERROR_SSL:
2989 ERR_print_errors(bio_err);
2990 goto shut;
2991 }
2992 }
2993/* OPENSSL_SYS_MSDOS includes OPENSSL_SYS_WINDOWS */
2994#if defined(OPENSSL_SYS_MSDOS)
2995 else if (has_stdin_waiting())
2996#else
2997 else if (FD_ISSET(fileno_stdin(), &readfds))
2998#endif
2999 {
3000 if (crlf) {
3001 int j, lf_num;
3002
3003 i = raw_read_stdin(cbuf, BUFSIZZ / 2);
3004 lf_num = 0;
3005 /* both loops are skipped when i <= 0 */
3006 for (j = 0; j < i; j++)
3007 if (cbuf[j] == '\n')
3008 lf_num++;
3009 for (j = i - 1; j >= 0; j--) {
3010 cbuf[j + lf_num] = cbuf[j];
3011 if (cbuf[j] == '\n') {
3012 lf_num--;
3013 i++;
3014 cbuf[j + lf_num] = '\r';
3015 }
3016 }
3017 assert(lf_num == 0);
3018 } else
3019 i = raw_read_stdin(cbuf, BUFSIZZ);
3020#if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS)
3021 if (i == 0)
3022 at_eof = 1;
3023#endif
3024
3025 if ((!c_ign_eof) && ((i <= 0) || (cbuf[0] == 'Q' && cmdletters))) {
3026 BIO_printf(bio_err, "DONE\n");
3027 ret = 0;
3028 goto shut;
3029 }
3030
3031 if ((!c_ign_eof) && (cbuf[0] == 'R' && cmdletters)) {
3032 BIO_printf(bio_err, "RENEGOTIATING\n");
3033 SSL_renegotiate(con);
3034 cbuf_len = 0;
3035 } else if (!c_ign_eof && (cbuf[0] == 'K' || cbuf[0] == 'k' )
3036 && cmdletters) {
3037 BIO_printf(bio_err, "KEYUPDATE\n");
3038 SSL_key_update(con,
3039 cbuf[0] == 'K' ? SSL_KEY_UPDATE_REQUESTED
3040 : SSL_KEY_UPDATE_NOT_REQUESTED);
3041 cbuf_len = 0;
3042 } else {
3043 cbuf_len = i;
3044 cbuf_off = 0;
3045#ifdef CHARSET_EBCDIC
3046 ebcdic2ascii(cbuf, cbuf, i);
3047#endif
3048 }
3049
3050 write_ssl = 1;
3051 read_tty = 0;
3052 }
3053 }
3054
3055 shut:
3056 if (in_init)
3057 print_stuff(bio_c_out, con, full_log);
3058 do_ssl_shutdown(con);
3059
3060 /*
3061 * If we ended with an alert being sent, but still with data in the
3062 * network buffer to be read, then calling BIO_closesocket() will
3063 * result in a TCP-RST being sent. On some platforms (notably
3064 * Windows) then this will result in the peer immediately abandoning
3065 * the connection including any buffered alert data before it has
3066 * had a chance to be read. Shutting down the sending side first,
3067 * and then closing the socket sends TCP-FIN first followed by
3068 * TCP-RST. This seems to allow the peer to read the alert data.
3069 */
3070 shutdown(SSL_get_fd(con), 1); /* SHUT_WR */
3071 /*
3072 * We just said we have nothing else to say, but it doesn't mean that
3073 * the other side has nothing. It's even recommended to consume incoming
3074 * data. [In testing context this ensures that alerts are passed on...]
3075 */
3076 timeout.tv_sec = 0;
3077 timeout.tv_usec = 500000; /* some extreme round-trip */
3078 do {
3079 FD_ZERO(&readfds);
3080 openssl_fdset(sock, &readfds);
3081 } while (select(sock + 1, &readfds, NULL, NULL, &timeout) > 0
3082 && BIO_read(sbio, sbuf, BUFSIZZ) > 0);
3083
3084 BIO_closesocket(SSL_get_fd(con));
3085 end:
3086 if (con != NULL) {
3087 if (prexit != 0)
3088 print_stuff(bio_c_out, con, 1);
3089 SSL_free(con);
3090 }
3091 SSL_SESSION_free(psksess);
3092#if !defined(OPENSSL_NO_NEXTPROTONEG)
3093 OPENSSL_free(next_proto.data);
3094#endif
3095 SSL_CTX_free(ctx);
3096 set_keylog_file(NULL, NULL);
3097 X509_free(cert);
3098 sk_X509_CRL_pop_free(crls, X509_CRL_free);
3099 EVP_PKEY_free(key);
3100 sk_X509_pop_free(chain, X509_free);
3101 OPENSSL_free(pass);
3102#ifndef OPENSSL_NO_SRP
3103 OPENSSL_free(srp_arg.srppassin);
3104#endif
3105 OPENSSL_free(sname_alloc);
3106 OPENSSL_free(connectstr);
3107 OPENSSL_free(bindstr);
3108 OPENSSL_free(bindhost);
3109 OPENSSL_free(bindport);
3110 OPENSSL_free(host);
3111 OPENSSL_free(port);
3112 OPENSSL_free(thost);
3113 OPENSSL_free(tport);
3114 X509_VERIFY_PARAM_free(vpm);
3115 ssl_excert_free(exc);
3116 sk_OPENSSL_STRING_free(ssl_args);
3117 sk_OPENSSL_STRING_free(dane_tlsa_rrset);
3118 SSL_CONF_CTX_free(cctx);
3119 OPENSSL_clear_free(cbuf, BUFSIZZ);
3120 OPENSSL_clear_free(sbuf, BUFSIZZ);
3121 OPENSSL_clear_free(mbuf, BUFSIZZ);
3122 clear_free(proxypass);
3123 release_engine(e);
3124 BIO_free(bio_c_out);
3125 bio_c_out = NULL;
3126 BIO_free(bio_c_msg);
3127 bio_c_msg = NULL;
3128 return ret;
3129}
3130
3131static void print_stuff(BIO *bio, SSL *s, int full)
3132{
3133 X509 *peer = NULL;
3134 STACK_OF(X509) *sk;
3135 const SSL_CIPHER *c;
3136 EVP_PKEY *public_key;
3137 int i, istls13 = (SSL_version(s) == TLS1_3_VERSION);
3138 long verify_result;
3139#ifndef OPENSSL_NO_COMP
3140 const COMP_METHOD *comp, *expansion;
3141#endif
3142 unsigned char *exportedkeymat;
3143#ifndef OPENSSL_NO_CT
3144 const SSL_CTX *ctx = SSL_get_SSL_CTX(s);
3145#endif
3146
3147 if (full) {
3148 int got_a_chain = 0;
3149
3150 sk = SSL_get_peer_cert_chain(s);
3151 if (sk != NULL) {
3152 got_a_chain = 1;
3153
3154 BIO_printf(bio, "---\nCertificate chain\n");
3155 for (i = 0; i < sk_X509_num(sk); i++) {
3156 BIO_printf(bio, "%2d s:", i);
3157 X509_NAME_print_ex(bio, X509_get_subject_name(sk_X509_value(sk, i)), 0, get_nameopt());
3158 BIO_puts(bio, "\n");
3159 BIO_printf(bio, " i:");
3160 X509_NAME_print_ex(bio, X509_get_issuer_name(sk_X509_value(sk, i)), 0, get_nameopt());
3161 BIO_puts(bio, "\n");
3162 public_key = X509_get_pubkey(sk_X509_value(sk, i));
3163 if (public_key != NULL) {
3164 BIO_printf(bio, " a:PKEY: %s, %d (bit); sigalg: %s\n",
3165 OBJ_nid2sn(EVP_PKEY_get_base_id(public_key)),
3166 EVP_PKEY_get_bits(public_key),
3167 OBJ_nid2sn(X509_get_signature_nid(sk_X509_value(sk, i))));
3168 EVP_PKEY_free(public_key);
3169 }
3170 BIO_printf(bio, " v:NotBefore: ");
3171 ASN1_TIME_print(bio, X509_get0_notBefore(sk_X509_value(sk, i)));
3172 BIO_printf(bio, "; NotAfter: ");
3173 ASN1_TIME_print(bio, X509_get0_notAfter(sk_X509_value(sk, i)));
3174 BIO_puts(bio, "\n");
3175 if (c_showcerts)
3176 PEM_write_bio_X509(bio, sk_X509_value(sk, i));
3177 }
3178 }
3179
3180 BIO_printf(bio, "---\n");
3181 peer = SSL_get0_peer_certificate(s);
3182 if (peer != NULL) {
3183 BIO_printf(bio, "Server certificate\n");
3184
3185 /* Redundant if we showed the whole chain */
3186 if (!(c_showcerts && got_a_chain))
3187 PEM_write_bio_X509(bio, peer);
3188 dump_cert_text(bio, peer);
3189 } else {
3190 BIO_printf(bio, "no peer certificate available\n");
3191 }
3192 print_ca_names(bio, s);
3193
3194 ssl_print_sigalgs(bio, s);
3195 ssl_print_tmp_key(bio, s);
3196
3197#ifndef OPENSSL_NO_CT
3198 /*
3199 * When the SSL session is anonymous, or resumed via an abbreviated
3200 * handshake, no SCTs are provided as part of the handshake. While in
3201 * a resumed session SCTs may be present in the session's certificate,
3202 * no callbacks are invoked to revalidate these, and in any case that
3203 * set of SCTs may be incomplete. Thus it makes little sense to
3204 * attempt to display SCTs from a resumed session's certificate, and of
3205 * course none are associated with an anonymous peer.
3206 */
3207 if (peer != NULL && !SSL_session_reused(s) && SSL_ct_is_enabled(s)) {
3208 const STACK_OF(SCT) *scts = SSL_get0_peer_scts(s);
3209 int sct_count = scts != NULL ? sk_SCT_num(scts) : 0;
3210
3211 BIO_printf(bio, "---\nSCTs present (%i)\n", sct_count);
3212 if (sct_count > 0) {
3213 const CTLOG_STORE *log_store = SSL_CTX_get0_ctlog_store(ctx);
3214
3215 BIO_printf(bio, "---\n");
3216 for (i = 0; i < sct_count; ++i) {
3217 SCT *sct = sk_SCT_value(scts, i);
3218
3219 BIO_printf(bio, "SCT validation status: %s\n",
3220 SCT_validation_status_string(sct));
3221 SCT_print(sct, bio, 0, log_store);
3222 if (i < sct_count - 1)
3223 BIO_printf(bio, "\n---\n");
3224 }
3225 BIO_printf(bio, "\n");
3226 }
3227 }
3228#endif
3229
3230 BIO_printf(bio,
3231 "---\nSSL handshake has read %ju bytes "
3232 "and written %ju bytes\n",
3233 BIO_number_read(SSL_get_rbio(s)),
3234 BIO_number_written(SSL_get_wbio(s)));
3235 }
3236 print_verify_detail(s, bio);
3237 BIO_printf(bio, (SSL_session_reused(s) ? "---\nReused, " : "---\nNew, "));
3238 c = SSL_get_current_cipher(s);
3239 BIO_printf(bio, "%s, Cipher is %s\n",
3240 SSL_CIPHER_get_version(c), SSL_CIPHER_get_name(c));
3241 if (peer != NULL) {
3242 EVP_PKEY *pktmp;
3243
3244 pktmp = X509_get0_pubkey(peer);
3245 BIO_printf(bio, "Server public key is %d bit\n",
3246 EVP_PKEY_get_bits(pktmp));
3247 }
3248
3249 ssl_print_secure_renegotiation_notes(bio, s);
3250
3251#ifndef OPENSSL_NO_COMP
3252 comp = SSL_get_current_compression(s);
3253 expansion = SSL_get_current_expansion(s);
3254 BIO_printf(bio, "Compression: %s\n",
3255 comp ? SSL_COMP_get_name(comp) : "NONE");
3256 BIO_printf(bio, "Expansion: %s\n",
3257 expansion ? SSL_COMP_get_name(expansion) : "NONE");
3258#endif
3259#ifndef OPENSSL_NO_KTLS
3260 if (BIO_get_ktls_send(SSL_get_wbio(s)))
3261 BIO_printf(bio_err, "Using Kernel TLS for sending\n");
3262 if (BIO_get_ktls_recv(SSL_get_rbio(s)))
3263 BIO_printf(bio_err, "Using Kernel TLS for receiving\n");
3264#endif
3265
3266 if (OSSL_TRACE_ENABLED(TLS)) {
3267 /* Print out local port of connection: useful for debugging */
3268 int sock;
3269 union BIO_sock_info_u info;
3270
3271 sock = SSL_get_fd(s);
3272 if ((info.addr = BIO_ADDR_new()) != NULL
3273 && BIO_sock_info(sock, BIO_SOCK_INFO_ADDRESS, &info)) {
3274 BIO_printf(bio_c_out, "LOCAL PORT is %u\n",
3275 ntohs(BIO_ADDR_rawport(info.addr)));
3276 }
3277 BIO_ADDR_free(info.addr);
3278 }
3279
3280#if !defined(OPENSSL_NO_NEXTPROTONEG)
3281 if (next_proto.status != -1) {
3282 const unsigned char *proto;
3283 unsigned int proto_len;
3284 SSL_get0_next_proto_negotiated(s, &proto, &proto_len);
3285 BIO_printf(bio, "Next protocol: (%d) ", next_proto.status);
3286 BIO_write(bio, proto, proto_len);
3287 BIO_write(bio, "\n", 1);
3288 }
3289#endif
3290 {
3291 const unsigned char *proto;
3292 unsigned int proto_len;
3293 SSL_get0_alpn_selected(s, &proto, &proto_len);
3294 if (proto_len > 0) {
3295 BIO_printf(bio, "ALPN protocol: ");
3296 BIO_write(bio, proto, proto_len);
3297 BIO_write(bio, "\n", 1);
3298 } else
3299 BIO_printf(bio, "No ALPN negotiated\n");
3300 }
3301
3302#ifndef OPENSSL_NO_SRTP
3303 {
3304 SRTP_PROTECTION_PROFILE *srtp_profile =
3305 SSL_get_selected_srtp_profile(s);
3306
3307 if (srtp_profile)
3308 BIO_printf(bio, "SRTP Extension negotiated, profile=%s\n",
3309 srtp_profile->name);
3310 }
3311#endif
3312
3313 if (istls13) {
3314 switch (SSL_get_early_data_status(s)) {
3315 case SSL_EARLY_DATA_NOT_SENT:
3316 BIO_printf(bio, "Early data was not sent\n");
3317 break;
3318
3319 case SSL_EARLY_DATA_REJECTED:
3320 BIO_printf(bio, "Early data was rejected\n");
3321 break;
3322
3323 case SSL_EARLY_DATA_ACCEPTED:
3324 BIO_printf(bio, "Early data was accepted\n");
3325 break;
3326
3327 }
3328
3329 /*
3330 * We also print the verify results when we dump session information,
3331 * but in TLSv1.3 we may not get that right away (or at all) depending
3332 * on when we get a NewSessionTicket. Therefore we print it now as well.
3333 */
3334 verify_result = SSL_get_verify_result(s);
3335 BIO_printf(bio, "Verify return code: %ld (%s)\n", verify_result,
3336 X509_verify_cert_error_string(verify_result));
3337 } else {
3338 /* In TLSv1.3 we do this on arrival of a NewSessionTicket */
3339 SSL_SESSION_print(bio, SSL_get_session(s));
3340 }
3341
3342 if (SSL_get_session(s) != NULL && keymatexportlabel != NULL) {
3343 BIO_printf(bio, "Keying material exporter:\n");
3344 BIO_printf(bio, " Label: '%s'\n", keymatexportlabel);
3345 BIO_printf(bio, " Length: %i bytes\n", keymatexportlen);
3346 exportedkeymat = app_malloc(keymatexportlen, "export key");
3347 if (SSL_export_keying_material(s, exportedkeymat,
3348 keymatexportlen,
3349 keymatexportlabel,
3350 strlen(keymatexportlabel),
3351 NULL, 0, 0) <= 0) {
3352 BIO_printf(bio, " Error\n");
3353 } else {
3354 BIO_printf(bio, " Keying material: ");
3355 for (i = 0; i < keymatexportlen; i++)
3356 BIO_printf(bio, "%02X", exportedkeymat[i]);
3357 BIO_printf(bio, "\n");
3358 }
3359 OPENSSL_free(exportedkeymat);
3360 }
3361 BIO_printf(bio, "---\n");
3362 /* flush, or debugging output gets mixed with http response */
3363 (void)BIO_flush(bio);
3364}
3365
3366# ifndef OPENSSL_NO_OCSP
3367static int ocsp_resp_cb(SSL *s, void *arg)
3368{
3369 const unsigned char *p;
3370 int len;
3371 OCSP_RESPONSE *rsp;
3372 len = SSL_get_tlsext_status_ocsp_resp(s, &p);
3373 BIO_puts(arg, "OCSP response: ");
3374 if (p == NULL) {
3375 BIO_puts(arg, "no response sent\n");
3376 return 1;
3377 }
3378 rsp = d2i_OCSP_RESPONSE(NULL, &p, len);
3379 if (rsp == NULL) {
3380 BIO_puts(arg, "response parse error\n");
3381 BIO_dump_indent(arg, (char *)p, len, 4);
3382 return 0;
3383 }
3384 BIO_puts(arg, "\n======================================\n");
3385 OCSP_RESPONSE_print(arg, rsp, 0);
3386 BIO_puts(arg, "======================================\n");
3387 OCSP_RESPONSE_free(rsp);
3388 return 1;
3389}
3390# endif
3391
3392static int ldap_ExtendedResponse_parse(const char *buf, long rem)
3393{
3394 const unsigned char *cur, *end;
3395 long len;
3396 int tag, xclass, inf, ret = -1;
3397
3398 cur = (const unsigned char *)buf;
3399 end = cur + rem;
3400
3401 /*
3402 * From RFC 4511:
3403 *
3404 * LDAPMessage ::= SEQUENCE {
3405 * messageID MessageID,
3406 * protocolOp CHOICE {
3407 * ...
3408 * extendedResp ExtendedResponse,
3409 * ... },
3410 * controls [0] Controls OPTIONAL }
3411 *
3412 * ExtendedResponse ::= [APPLICATION 24] SEQUENCE {
3413 * COMPONENTS OF LDAPResult,
3414 * responseName [10] LDAPOID OPTIONAL,
3415 * responseValue [11] OCTET STRING OPTIONAL }
3416 *
3417 * LDAPResult ::= SEQUENCE {
3418 * resultCode ENUMERATED {
3419 * success (0),
3420 * ...
3421 * other (80),
3422 * ... },
3423 * matchedDN LDAPDN,
3424 * diagnosticMessage LDAPString,
3425 * referral [3] Referral OPTIONAL }
3426 */
3427
3428 /* pull SEQUENCE */
3429 inf = ASN1_get_object(&cur, &len, &tag, &xclass, rem);
3430 if (inf != V_ASN1_CONSTRUCTED || tag != V_ASN1_SEQUENCE ||
3431 (rem = end - cur, len > rem)) {
3432 BIO_printf(bio_err, "Unexpected LDAP response\n");
3433 goto end;
3434 }
3435
3436 rem = len; /* ensure that we don't overstep the SEQUENCE */
3437
3438 /* pull MessageID */
3439 inf = ASN1_get_object(&cur, &len, &tag, &xclass, rem);
3440 if (inf != V_ASN1_UNIVERSAL || tag != V_ASN1_INTEGER ||
3441 (rem = end - cur, len > rem)) {
3442 BIO_printf(bio_err, "No MessageID\n");
3443 goto end;
3444 }
3445
3446 cur += len; /* shall we check for MessageId match or just skip? */
3447
3448 /* pull [APPLICATION 24] */
3449 rem = end - cur;
3450 inf = ASN1_get_object(&cur, &len, &tag, &xclass, rem);
3451 if (inf != V_ASN1_CONSTRUCTED || xclass != V_ASN1_APPLICATION ||
3452 tag != 24) {
3453 BIO_printf(bio_err, "Not ExtendedResponse\n");
3454 goto end;
3455 }
3456
3457 /* pull resultCode */
3458 rem = end - cur;
3459 inf = ASN1_get_object(&cur, &len, &tag, &xclass, rem);
3460 if (inf != V_ASN1_UNIVERSAL || tag != V_ASN1_ENUMERATED || len == 0 ||
3461 (rem = end - cur, len > rem)) {
3462 BIO_printf(bio_err, "Not LDAPResult\n");
3463 goto end;
3464 }
3465
3466 /* len should always be one, but just in case... */
3467 for (ret = 0, inf = 0; inf < len; inf++) {
3468 ret <<= 8;
3469 ret |= cur[inf];
3470 }
3471 /* There is more data, but we don't care... */
3472 end:
3473 return ret;
3474}
3475
3476/*
3477 * Host dNS Name verifier: used for checking that the hostname is in dNS format
3478 * before setting it as SNI
3479 */
3480static int is_dNS_name(const char *host)
3481{
3482 const size_t MAX_LABEL_LENGTH = 63;
3483 size_t i;
3484 int isdnsname = 0;
3485 size_t length = strlen(host);
3486 size_t label_length = 0;
3487 int all_numeric = 1;
3488
3489 /*
3490 * Deviation from strict DNS name syntax, also check names with '_'
3491 * Check DNS name syntax, any '-' or '.' must be internal,
3492 * and on either side of each '.' we can't have a '-' or '.'.
3493 *
3494 * If the name has just one label, we don't consider it a DNS name.
3495 */
3496 for (i = 0; i < length && label_length < MAX_LABEL_LENGTH; ++i) {
3497 char c = host[i];
3498
3499 if ((c >= 'a' && c <= 'z')
3500 || (c >= 'A' && c <= 'Z')
3501 || c == '_') {
3502 label_length += 1;
3503 all_numeric = 0;
3504 continue;
3505 }
3506
3507 if (c >= '0' && c <= '9') {
3508 label_length += 1;
3509 continue;
3510 }
3511
3512 /* Dot and hyphen cannot be first or last. */
3513 if (i > 0 && i < length - 1) {
3514 if (c == '-') {
3515 label_length += 1;
3516 continue;
3517 }
3518 /*
3519 * Next to a dot the preceding and following characters must not be
3520 * another dot or a hyphen. Otherwise, record that the name is
3521 * plausible, since it has two or more labels.
3522 */
3523 if (c == '.'
3524 && host[i + 1] != '.'
3525 && host[i - 1] != '-'
3526 && host[i + 1] != '-') {
3527 label_length = 0;
3528 isdnsname = 1;
3529 continue;
3530 }
3531 }
3532 isdnsname = 0;
3533 break;
3534 }
3535
3536 /* dNS name must not be all numeric and labels must be shorter than 64 characters. */
3537 isdnsname &= !all_numeric && !(label_length == MAX_LABEL_LENGTH);
3538
3539 return isdnsname;
3540}
3541#endif /* OPENSSL_NO_SOCK */
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