1 /*
2 * Copyright 1995-2023 The OpenSSL Project Authors. All Rights Reserved.
3 * Copyright 2005 Nokia. All rights reserved.
4 *
5 * Licensed under the Apache License 2.0 (the "License"). You may not use
6 * this file except in compliance with the License. You can obtain a copy
7 * in the file LICENSE in the source distribution or at
8 * https://www.openssl.org/source/license.html
9 */
10
11 #include "e_os.h"
12 #include <ctype.h>
13 #include <stdio.h>
14 #include <stdlib.h>
15 #include <string.h>
16 #include <errno.h>
17 #include <openssl/e_os2.h>
18
19 #ifndef OPENSSL_NO_SOCK
20
21 /*
22 * With IPv6, it looks like Digital has mixed up the proper order of
23 * recursive header file inclusion, resulting in the compiler complaining
24 * that u_int isn't defined, but only if _POSIX_C_SOURCE is defined, which is
25 * needed to have fileno() declared correctly... So let's define u_int
26 */
27 #if defined(OPENSSL_SYS_VMS_DECC) && !defined(__U_INT)
28 # define __U_INT
29 typedef unsigned int u_int;
30 #endif
31
32 #include "apps.h"
33 #include "progs.h"
34 #include <openssl/x509.h>
35 #include <openssl/ssl.h>
36 #include <openssl/err.h>
37 #include <openssl/pem.h>
38 #include <openssl/rand.h>
39 #include <openssl/ocsp.h>
40 #include <openssl/bn.h>
41 #include <openssl/trace.h>
42 #include <openssl/async.h>
43 #ifndef OPENSSL_NO_CT
44 # include <openssl/ct.h>
45 #endif
46 #include "s_apps.h"
47 #include "timeouts.h"
48 #include "internal/sockets.h"
49
50 #if defined(__has_feature)
51 # if __has_feature(memory_sanitizer)
52 # include <sanitizer/msan_interface.h>
53 # endif
54 #endif
55
56 #undef BUFSIZZ
57 #define BUFSIZZ 1024*8
58 #define S_CLIENT_IRC_READ_TIMEOUT 8
59
60 static char *prog;
61 static int c_debug = 0;
62 static int c_showcerts = 0;
63 static char *keymatexportlabel = NULL;
64 static int keymatexportlen = 20;
65 static BIO *bio_c_out = NULL;
66 static int c_quiet = 0;
67 static char *sess_out = NULL;
68 static SSL_SESSION *psksess = NULL;
69
70 static void print_stuff(BIO *berr, SSL *con, int full);
71 #ifndef OPENSSL_NO_OCSP
72 static int ocsp_resp_cb(SSL *s, void *arg);
73 #endif
74 static int ldap_ExtendedResponse_parse(const char *buf, long rem);
75 static int is_dNS_name(const char *host);
76
77 static int saved_errno;
78
save_errno(void)79 static void save_errno(void)
80 {
81 saved_errno = errno;
82 errno = 0;
83 }
84
restore_errno(void)85 static int restore_errno(void)
86 {
87 int ret = errno;
88 errno = saved_errno;
89 return ret;
90 }
91
92 /* Default PSK identity and key */
93 static char *psk_identity = "Client_identity";
94
95 #ifndef OPENSSL_NO_PSK
psk_client_cb(SSL * ssl,const char * hint,char * identity,unsigned int max_identity_len,unsigned char * psk,unsigned int max_psk_len)96 static unsigned int psk_client_cb(SSL *ssl, const char *hint, char *identity,
97 unsigned int max_identity_len,
98 unsigned char *psk,
99 unsigned int max_psk_len)
100 {
101 int ret;
102 long key_len;
103 unsigned char *key;
104
105 if (c_debug)
106 BIO_printf(bio_c_out, "psk_client_cb\n");
107 if (!hint) {
108 /* no ServerKeyExchange message */
109 if (c_debug)
110 BIO_printf(bio_c_out,
111 "NULL received PSK identity hint, continuing anyway\n");
112 } else if (c_debug) {
113 BIO_printf(bio_c_out, "Received PSK identity hint '%s'\n", hint);
114 }
115
116 /*
117 * lookup PSK identity and PSK key based on the given identity hint here
118 */
119 ret = BIO_snprintf(identity, max_identity_len, "%s", psk_identity);
120 if (ret < 0 || (unsigned int)ret > max_identity_len)
121 goto out_err;
122 if (c_debug)
123 BIO_printf(bio_c_out, "created identity '%s' len=%d\n", identity,
124 ret);
125
126 /* convert the PSK key to binary */
127 key = OPENSSL_hexstr2buf(psk_key, &key_len);
128 if (key == NULL) {
129 BIO_printf(bio_err, "Could not convert PSK key '%s' to buffer\n",
130 psk_key);
131 return 0;
132 }
133 if (max_psk_len > INT_MAX || key_len > (long)max_psk_len) {
134 BIO_printf(bio_err,
135 "psk buffer of callback is too small (%d) for key (%ld)\n",
136 max_psk_len, key_len);
137 OPENSSL_free(key);
138 return 0;
139 }
140
141 memcpy(psk, key, key_len);
142 OPENSSL_free(key);
143
144 if (c_debug)
145 BIO_printf(bio_c_out, "created PSK len=%ld\n", key_len);
146
147 return key_len;
148 out_err:
149 if (c_debug)
150 BIO_printf(bio_err, "Error in PSK client callback\n");
151 return 0;
152 }
153 #endif
154
155 const unsigned char tls13_aes128gcmsha256_id[] = { 0x13, 0x01 };
156 const unsigned char tls13_aes256gcmsha384_id[] = { 0x13, 0x02 };
157
psk_use_session_cb(SSL * s,const EVP_MD * md,const unsigned char ** id,size_t * idlen,SSL_SESSION ** sess)158 static int psk_use_session_cb(SSL *s, const EVP_MD *md,
159 const unsigned char **id, size_t *idlen,
160 SSL_SESSION **sess)
161 {
162 SSL_SESSION *usesess = NULL;
163 const SSL_CIPHER *cipher = NULL;
164
165 if (psksess != NULL) {
166 SSL_SESSION_up_ref(psksess);
167 usesess = psksess;
168 } else {
169 long key_len;
170 unsigned char *key = OPENSSL_hexstr2buf(psk_key, &key_len);
171
172 if (key == NULL) {
173 BIO_printf(bio_err, "Could not convert PSK key '%s' to buffer\n",
174 psk_key);
175 return 0;
176 }
177
178 /* We default to SHA-256 */
179 cipher = SSL_CIPHER_find(s, tls13_aes128gcmsha256_id);
180 if (cipher == NULL) {
181 BIO_printf(bio_err, "Error finding suitable ciphersuite\n");
182 OPENSSL_free(key);
183 return 0;
184 }
185
186 usesess = SSL_SESSION_new();
187 if (usesess == NULL
188 || !SSL_SESSION_set1_master_key(usesess, key, key_len)
189 || !SSL_SESSION_set_cipher(usesess, cipher)
190 || !SSL_SESSION_set_protocol_version(usesess, TLS1_3_VERSION)) {
191 OPENSSL_free(key);
192 goto err;
193 }
194 OPENSSL_free(key);
195 }
196
197 cipher = SSL_SESSION_get0_cipher(usesess);
198 if (cipher == NULL)
199 goto err;
200
201 if (md != NULL && SSL_CIPHER_get_handshake_digest(cipher) != md) {
202 /* PSK not usable, ignore it */
203 *id = NULL;
204 *idlen = 0;
205 *sess = NULL;
206 SSL_SESSION_free(usesess);
207 } else {
208 *sess = usesess;
209 *id = (unsigned char *)psk_identity;
210 *idlen = strlen(psk_identity);
211 }
212
213 return 1;
214
215 err:
216 SSL_SESSION_free(usesess);
217 return 0;
218 }
219
220 /* This is a context that we pass to callbacks */
221 typedef struct tlsextctx_st {
222 BIO *biodebug;
223 int ack;
224 } tlsextctx;
225
ssl_servername_cb(SSL * s,int * ad,void * arg)226 static int ssl_servername_cb(SSL *s, int *ad, void *arg)
227 {
228 tlsextctx *p = (tlsextctx *) arg;
229 const char *hn = SSL_get_servername(s, TLSEXT_NAMETYPE_host_name);
230 if (SSL_get_servername_type(s) != -1)
231 p->ack = !SSL_session_reused(s) && hn != NULL;
232 else
233 BIO_printf(bio_err, "Can't use SSL_get_servername\n");
234
235 return SSL_TLSEXT_ERR_OK;
236 }
237
238 #ifndef OPENSSL_NO_NEXTPROTONEG
239 /* This the context that we pass to next_proto_cb */
240 typedef struct tlsextnextprotoctx_st {
241 unsigned char *data;
242 size_t len;
243 int status;
244 } tlsextnextprotoctx;
245
246 static tlsextnextprotoctx next_proto;
247
next_proto_cb(SSL * s,unsigned char ** out,unsigned char * outlen,const unsigned char * in,unsigned int inlen,void * arg)248 static int next_proto_cb(SSL *s, unsigned char **out, unsigned char *outlen,
249 const unsigned char *in, unsigned int inlen,
250 void *arg)
251 {
252 tlsextnextprotoctx *ctx = arg;
253
254 if (!c_quiet) {
255 /* We can assume that |in| is syntactically valid. */
256 unsigned i;
257 BIO_printf(bio_c_out, "Protocols advertised by server: ");
258 for (i = 0; i < inlen;) {
259 if (i)
260 BIO_write(bio_c_out, ", ", 2);
261 BIO_write(bio_c_out, &in[i + 1], in[i]);
262 i += in[i] + 1;
263 }
264 BIO_write(bio_c_out, "\n", 1);
265 }
266
267 ctx->status =
268 SSL_select_next_proto(out, outlen, in, inlen, ctx->data, ctx->len);
269 return SSL_TLSEXT_ERR_OK;
270 }
271 #endif /* ndef OPENSSL_NO_NEXTPROTONEG */
272
serverinfo_cli_parse_cb(SSL * s,unsigned int ext_type,const unsigned char * in,size_t inlen,int * al,void * arg)273 static int serverinfo_cli_parse_cb(SSL *s, unsigned int ext_type,
274 const unsigned char *in, size_t inlen,
275 int *al, void *arg)
276 {
277 char pem_name[100];
278 unsigned char ext_buf[4 + 65536];
279
280 /* Reconstruct the type/len fields prior to extension data */
281 inlen &= 0xffff; /* for formal memcmpy correctness */
282 ext_buf[0] = (unsigned char)(ext_type >> 8);
283 ext_buf[1] = (unsigned char)(ext_type);
284 ext_buf[2] = (unsigned char)(inlen >> 8);
285 ext_buf[3] = (unsigned char)(inlen);
286 memcpy(ext_buf + 4, in, inlen);
287
288 BIO_snprintf(pem_name, sizeof(pem_name), "SERVERINFO FOR EXTENSION %d",
289 ext_type);
290 PEM_write_bio(bio_c_out, pem_name, "", ext_buf, 4 + inlen);
291 return 1;
292 }
293
294 /*
295 * Hex decoder that tolerates optional whitespace. Returns number of bytes
296 * produced, advances inptr to end of input string.
297 */
hexdecode(const char ** inptr,void * result)298 static ossl_ssize_t hexdecode(const char **inptr, void *result)
299 {
300 unsigned char **out = (unsigned char **)result;
301 const char *in = *inptr;
302 unsigned char *ret = app_malloc(strlen(in) / 2, "hexdecode");
303 unsigned char *cp = ret;
304 uint8_t byte;
305 int nibble = 0;
306
307 if (ret == NULL)
308 return -1;
309
310 for (byte = 0; *in; ++in) {
311 int x;
312
313 if (isspace(_UC(*in)))
314 continue;
315 x = OPENSSL_hexchar2int(*in);
316 if (x < 0) {
317 OPENSSL_free(ret);
318 return 0;
319 }
320 byte |= (char)x;
321 if ((nibble ^= 1) == 0) {
322 *cp++ = byte;
323 byte = 0;
324 } else {
325 byte <<= 4;
326 }
327 }
328 if (nibble != 0) {
329 OPENSSL_free(ret);
330 return 0;
331 }
332 *inptr = in;
333
334 return cp - (*out = ret);
335 }
336
337 /*
338 * Decode unsigned 0..255, returns 1 on success, <= 0 on failure. Advances
339 * inptr to next field skipping leading whitespace.
340 */
checked_uint8(const char ** inptr,void * out)341 static ossl_ssize_t checked_uint8(const char **inptr, void *out)
342 {
343 uint8_t *result = (uint8_t *)out;
344 const char *in = *inptr;
345 char *endp;
346 long v;
347 int e;
348
349 save_errno();
350 v = strtol(in, &endp, 10);
351 e = restore_errno();
352
353 if (((v == LONG_MIN || v == LONG_MAX) && e == ERANGE) ||
354 endp == in || !isspace(_UC(*endp)) ||
355 v != (*result = (uint8_t) v)) {
356 return -1;
357 }
358 for (in = endp; isspace(_UC(*in)); ++in)
359 continue;
360
361 *inptr = in;
362 return 1;
363 }
364
365 struct tlsa_field {
366 void *var;
367 const char *name;
368 ossl_ssize_t (*parser)(const char **, void *);
369 };
370
tlsa_import_rr(SSL * con,const char * rrdata)371 static int tlsa_import_rr(SSL *con, const char *rrdata)
372 {
373 /* Not necessary to re-init these values; the "parsers" do that. */
374 static uint8_t usage;
375 static uint8_t selector;
376 static uint8_t mtype;
377 static unsigned char *data;
378 static struct tlsa_field tlsa_fields[] = {
379 { &usage, "usage", checked_uint8 },
380 { &selector, "selector", checked_uint8 },
381 { &mtype, "mtype", checked_uint8 },
382 { &data, "data", hexdecode },
383 { NULL, }
384 };
385 struct tlsa_field *f;
386 int ret;
387 const char *cp = rrdata;
388 ossl_ssize_t len = 0;
389
390 for (f = tlsa_fields; f->var; ++f) {
391 /* Returns number of bytes produced, advances cp to next field */
392 if ((len = f->parser(&cp, f->var)) <= 0) {
393 BIO_printf(bio_err, "%s: warning: bad TLSA %s field in: %s\n",
394 prog, f->name, rrdata);
395 return 0;
396 }
397 }
398 /* The data field is last, so len is its length */
399 ret = SSL_dane_tlsa_add(con, usage, selector, mtype, data, len);
400 OPENSSL_free(data);
401
402 if (ret == 0) {
403 ERR_print_errors(bio_err);
404 BIO_printf(bio_err, "%s: warning: unusable TLSA rrdata: %s\n",
405 prog, rrdata);
406 return 0;
407 }
408 if (ret < 0) {
409 ERR_print_errors(bio_err);
410 BIO_printf(bio_err, "%s: warning: error loading TLSA rrdata: %s\n",
411 prog, rrdata);
412 return 0;
413 }
414 return ret;
415 }
416
tlsa_import_rrset(SSL * con,STACK_OF (OPENSSL_STRING)* rrset)417 static int tlsa_import_rrset(SSL *con, STACK_OF(OPENSSL_STRING) *rrset)
418 {
419 int num = sk_OPENSSL_STRING_num(rrset);
420 int count = 0;
421 int i;
422
423 for (i = 0; i < num; ++i) {
424 char *rrdata = sk_OPENSSL_STRING_value(rrset, i);
425 if (tlsa_import_rr(con, rrdata) > 0)
426 ++count;
427 }
428 return count > 0;
429 }
430
431 typedef enum OPTION_choice {
432 OPT_COMMON,
433 OPT_4, OPT_6, OPT_HOST, OPT_PORT, OPT_CONNECT, OPT_BIND, OPT_UNIX,
434 OPT_XMPPHOST, OPT_VERIFY, OPT_NAMEOPT,
435 OPT_CERT, OPT_CRL, OPT_CRL_DOWNLOAD, OPT_SESS_OUT, OPT_SESS_IN,
436 OPT_CERTFORM, OPT_CRLFORM, OPT_VERIFY_RET_ERROR, OPT_VERIFY_QUIET,
437 OPT_BRIEF, OPT_PREXIT, OPT_CRLF, OPT_QUIET, OPT_NBIO,
438 OPT_SSL_CLIENT_ENGINE, OPT_IGN_EOF, OPT_NO_IGN_EOF,
439 OPT_DEBUG, OPT_TLSEXTDEBUG, OPT_STATUS, OPT_WDEBUG,
440 OPT_MSG, OPT_MSGFILE, OPT_ENGINE, OPT_TRACE, OPT_SECURITY_DEBUG,
441 OPT_SECURITY_DEBUG_VERBOSE, OPT_SHOWCERTS, OPT_NBIO_TEST, OPT_STATE,
442 OPT_PSK_IDENTITY, OPT_PSK, OPT_PSK_SESS,
443 #ifndef OPENSSL_NO_SRP
444 OPT_SRPUSER, OPT_SRPPASS, OPT_SRP_STRENGTH, OPT_SRP_LATEUSER,
445 OPT_SRP_MOREGROUPS,
446 #endif
447 OPT_SSL3, OPT_SSL_CONFIG,
448 OPT_TLS1_3, OPT_TLS1_2, OPT_TLS1_1, OPT_TLS1, OPT_DTLS, OPT_DTLS1,
449 OPT_DTLS1_2, OPT_SCTP, OPT_TIMEOUT, OPT_MTU, OPT_KEYFORM, OPT_PASS,
450 OPT_CERT_CHAIN, OPT_KEY, OPT_RECONNECT, OPT_BUILD_CHAIN,
451 OPT_NEXTPROTONEG, OPT_ALPN,
452 OPT_CAPATH, OPT_NOCAPATH, OPT_CHAINCAPATH, OPT_VERIFYCAPATH,
453 OPT_CAFILE, OPT_NOCAFILE, OPT_CHAINCAFILE, OPT_VERIFYCAFILE,
454 OPT_CASTORE, OPT_NOCASTORE, OPT_CHAINCASTORE, OPT_VERIFYCASTORE,
455 OPT_SERVERINFO, OPT_STARTTLS, OPT_SERVERNAME, OPT_NOSERVERNAME, OPT_ASYNC,
456 OPT_USE_SRTP, OPT_KEYMATEXPORT, OPT_KEYMATEXPORTLEN, OPT_PROTOHOST,
457 OPT_MAXFRAGLEN, OPT_MAX_SEND_FRAG, OPT_SPLIT_SEND_FRAG, OPT_MAX_PIPELINES,
458 OPT_READ_BUF, OPT_KEYLOG_FILE, OPT_EARLY_DATA, OPT_REQCAFILE,
459 OPT_V_ENUM,
460 OPT_X_ENUM,
461 OPT_S_ENUM, OPT_IGNORE_UNEXPECTED_EOF,
462 OPT_FALLBACKSCSV, OPT_NOCMDS, OPT_PROXY, OPT_PROXY_USER, OPT_PROXY_PASS,
463 OPT_DANE_TLSA_DOMAIN,
464 #ifndef OPENSSL_NO_CT
465 OPT_CT, OPT_NOCT, OPT_CTLOG_FILE,
466 #endif
467 OPT_DANE_TLSA_RRDATA, OPT_DANE_EE_NO_NAME,
468 OPT_ENABLE_PHA,
469 OPT_SCTP_LABEL_BUG,
470 OPT_R_ENUM, OPT_PROV_ENUM
471 } OPTION_CHOICE;
472
473 const OPTIONS s_client_options[] = {
474 {OPT_HELP_STR, 1, '-', "Usage: %s [options] [host:port]\n"},
475
476 OPT_SECTION("General"),
477 {"help", OPT_HELP, '-', "Display this summary"},
478 #ifndef OPENSSL_NO_ENGINE
479 {"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"},
480 {"ssl_client_engine", OPT_SSL_CLIENT_ENGINE, 's',
481 "Specify engine to be used for client certificate operations"},
482 #endif
483 {"ssl_config", OPT_SSL_CONFIG, 's', "Use specified section for SSL_CTX configuration"},
484 #ifndef OPENSSL_NO_CT
485 {"ct", OPT_CT, '-', "Request and parse SCTs (also enables OCSP stapling)"},
486 {"noct", OPT_NOCT, '-', "Do not request or parse SCTs (default)"},
487 {"ctlogfile", OPT_CTLOG_FILE, '<', "CT log list CONF file"},
488 #endif
489
490 OPT_SECTION("Network"),
491 {"host", OPT_HOST, 's', "Use -connect instead"},
492 {"port", OPT_PORT, 'p', "Use -connect instead"},
493 {"connect", OPT_CONNECT, 's',
494 "TCP/IP where to connect; default: " PORT ")"},
495 {"bind", OPT_BIND, 's', "bind local address for connection"},
496 {"proxy", OPT_PROXY, 's',
497 "Connect to via specified proxy to the real server"},
498 {"proxy_user", OPT_PROXY_USER, 's', "UserID for proxy authentication"},
499 {"proxy_pass", OPT_PROXY_PASS, 's', "Proxy authentication password source"},
500 #ifdef AF_UNIX
501 {"unix", OPT_UNIX, 's', "Connect over the specified Unix-domain socket"},
502 #endif
503 {"4", OPT_4, '-', "Use IPv4 only"},
504 #ifdef AF_INET6
505 {"6", OPT_6, '-', "Use IPv6 only"},
506 #endif
507 {"maxfraglen", OPT_MAXFRAGLEN, 'p',
508 "Enable Maximum Fragment Length Negotiation (len values: 512, 1024, 2048 and 4096)"},
509 {"max_send_frag", OPT_MAX_SEND_FRAG, 'p', "Maximum Size of send frames "},
510 {"split_send_frag", OPT_SPLIT_SEND_FRAG, 'p',
511 "Size used to split data for encrypt pipelines"},
512 {"max_pipelines", OPT_MAX_PIPELINES, 'p',
513 "Maximum number of encrypt/decrypt pipelines to be used"},
514 {"read_buf", OPT_READ_BUF, 'p',
515 "Default read buffer size to be used for connections"},
516 {"fallback_scsv", OPT_FALLBACKSCSV, '-', "Send the fallback SCSV"},
517
518 OPT_SECTION("Identity"),
519 {"cert", OPT_CERT, '<', "Client certificate file to use"},
520 {"certform", OPT_CERTFORM, 'F',
521 "Client certificate file format (PEM/DER/P12); has no effect"},
522 {"cert_chain", OPT_CERT_CHAIN, '<',
523 "Client certificate chain file (in PEM format)"},
524 {"build_chain", OPT_BUILD_CHAIN, '-', "Build client certificate chain"},
525 {"key", OPT_KEY, 's', "Private key file to use; default: -cert file"},
526 {"keyform", OPT_KEYFORM, 'E', "Key format (ENGINE, other values ignored)"},
527 {"pass", OPT_PASS, 's', "Private key and cert file pass phrase source"},
528 {"verify", OPT_VERIFY, 'p', "Turn on peer certificate verification"},
529 {"nameopt", OPT_NAMEOPT, 's', "Certificate subject/issuer name printing options"},
530 {"CApath", OPT_CAPATH, '/', "PEM format directory of CA's"},
531 {"CAfile", OPT_CAFILE, '<', "PEM format file of CA's"},
532 {"CAstore", OPT_CASTORE, ':', "URI to store of CA's"},
533 {"no-CAfile", OPT_NOCAFILE, '-',
534 "Do not load the default certificates file"},
535 {"no-CApath", OPT_NOCAPATH, '-',
536 "Do not load certificates from the default certificates directory"},
537 {"no-CAstore", OPT_NOCASTORE, '-',
538 "Do not load certificates from the default certificates store"},
539 {"requestCAfile", OPT_REQCAFILE, '<',
540 "PEM format file of CA names to send to the server"},
541 {"dane_tlsa_domain", OPT_DANE_TLSA_DOMAIN, 's', "DANE TLSA base domain"},
542 {"dane_tlsa_rrdata", OPT_DANE_TLSA_RRDATA, 's',
543 "DANE TLSA rrdata presentation form"},
544 {"dane_ee_no_namechecks", OPT_DANE_EE_NO_NAME, '-',
545 "Disable name checks when matching DANE-EE(3) TLSA records"},
546 {"psk_identity", OPT_PSK_IDENTITY, 's', "PSK identity"},
547 {"psk", OPT_PSK, 's', "PSK in hex (without 0x)"},
548 {"psk_session", OPT_PSK_SESS, '<', "File to read PSK SSL session from"},
549 {"name", OPT_PROTOHOST, 's',
550 "Hostname to use for \"-starttls lmtp\", \"-starttls smtp\" or \"-starttls xmpp[-server]\""},
551
552 OPT_SECTION("Session"),
553 {"reconnect", OPT_RECONNECT, '-',
554 "Drop and re-make the connection with the same Session-ID"},
555 {"sess_out", OPT_SESS_OUT, '>', "File to write SSL session to"},
556 {"sess_in", OPT_SESS_IN, '<', "File to read SSL session from"},
557
558 OPT_SECTION("Input/Output"),
559 {"crlf", OPT_CRLF, '-', "Convert LF from terminal into CRLF"},
560 {"quiet", OPT_QUIET, '-', "No s_client output"},
561 {"ign_eof", OPT_IGN_EOF, '-', "Ignore input eof (default when -quiet)"},
562 {"no_ign_eof", OPT_NO_IGN_EOF, '-', "Don't ignore input eof"},
563 {"starttls", OPT_STARTTLS, 's',
564 "Use the appropriate STARTTLS command before starting TLS"},
565 {"xmpphost", OPT_XMPPHOST, 's',
566 "Alias of -name option for \"-starttls xmpp[-server]\""},
567 {"brief", OPT_BRIEF, '-',
568 "Restrict output to brief summary of connection parameters"},
569 {"prexit", OPT_PREXIT, '-',
570 "Print session information when the program exits"},
571
572 OPT_SECTION("Debug"),
573 {"showcerts", OPT_SHOWCERTS, '-',
574 "Show all certificates sent by the server"},
575 {"debug", OPT_DEBUG, '-', "Extra output"},
576 {"msg", OPT_MSG, '-', "Show protocol messages"},
577 {"msgfile", OPT_MSGFILE, '>',
578 "File to send output of -msg or -trace, instead of stdout"},
579 {"nbio_test", OPT_NBIO_TEST, '-', "More ssl protocol testing"},
580 {"state", OPT_STATE, '-', "Print the ssl states"},
581 {"keymatexport", OPT_KEYMATEXPORT, 's',
582 "Export keying material using label"},
583 {"keymatexportlen", OPT_KEYMATEXPORTLEN, 'p',
584 "Export len bytes of keying material; default 20"},
585 {"security_debug", OPT_SECURITY_DEBUG, '-',
586 "Enable security debug messages"},
587 {"security_debug_verbose", OPT_SECURITY_DEBUG_VERBOSE, '-',
588 "Output more security debug output"},
589 #ifndef OPENSSL_NO_SSL_TRACE
590 {"trace", OPT_TRACE, '-', "Show trace output of protocol messages"},
591 #endif
592 #ifdef WATT32
593 {"wdebug", OPT_WDEBUG, '-', "WATT-32 tcp debugging"},
594 #endif
595 {"keylogfile", OPT_KEYLOG_FILE, '>', "Write TLS secrets to file"},
596 {"nocommands", OPT_NOCMDS, '-', "Do not use interactive command letters"},
597 {"servername", OPT_SERVERNAME, 's',
598 "Set TLS extension servername (SNI) in ClientHello (default)"},
599 {"noservername", OPT_NOSERVERNAME, '-',
600 "Do not send the server name (SNI) extension in the ClientHello"},
601 {"tlsextdebug", OPT_TLSEXTDEBUG, '-',
602 "Hex dump of all TLS extensions received"},
603 {"ignore_unexpected_eof", OPT_IGNORE_UNEXPECTED_EOF, '-',
604 "Do not treat lack of close_notify from a peer as an error"},
605 #ifndef OPENSSL_NO_OCSP
606 {"status", OPT_STATUS, '-', "Request certificate status from server"},
607 #endif
608 {"serverinfo", OPT_SERVERINFO, 's',
609 "types Send empty ClientHello extensions (comma-separated numbers)"},
610 {"alpn", OPT_ALPN, 's',
611 "Enable ALPN extension, considering named protocols supported (comma-separated list)"},
612 {"async", OPT_ASYNC, '-', "Support asynchronous operation"},
613 {"nbio", OPT_NBIO, '-', "Use non-blocking IO"},
614
615 OPT_SECTION("Protocol and version"),
616 #ifndef OPENSSL_NO_SSL3
617 {"ssl3", OPT_SSL3, '-', "Just use SSLv3"},
618 #endif
619 #ifndef OPENSSL_NO_TLS1
620 {"tls1", OPT_TLS1, '-', "Just use TLSv1"},
621 #endif
622 #ifndef OPENSSL_NO_TLS1_1
623 {"tls1_1", OPT_TLS1_1, '-', "Just use TLSv1.1"},
624 #endif
625 #ifndef OPENSSL_NO_TLS1_2
626 {"tls1_2", OPT_TLS1_2, '-', "Just use TLSv1.2"},
627 #endif
628 #ifndef OPENSSL_NO_TLS1_3
629 {"tls1_3", OPT_TLS1_3, '-', "Just use TLSv1.3"},
630 #endif
631 #ifndef OPENSSL_NO_DTLS
632 {"dtls", OPT_DTLS, '-', "Use any version of DTLS"},
633 {"timeout", OPT_TIMEOUT, '-',
634 "Enable send/receive timeout on DTLS connections"},
635 {"mtu", OPT_MTU, 'p', "Set the link layer MTU"},
636 #endif
637 #ifndef OPENSSL_NO_DTLS1
638 {"dtls1", OPT_DTLS1, '-', "Just use DTLSv1"},
639 #endif
640 #ifndef OPENSSL_NO_DTLS1_2
641 {"dtls1_2", OPT_DTLS1_2, '-', "Just use DTLSv1.2"},
642 #endif
643 #ifndef OPENSSL_NO_SCTP
644 {"sctp", OPT_SCTP, '-', "Use SCTP"},
645 {"sctp_label_bug", OPT_SCTP_LABEL_BUG, '-', "Enable SCTP label length bug"},
646 #endif
647 #ifndef OPENSSL_NO_NEXTPROTONEG
648 {"nextprotoneg", OPT_NEXTPROTONEG, 's',
649 "Enable NPN extension, considering named protocols supported (comma-separated list)"},
650 #endif
651 {"early_data", OPT_EARLY_DATA, '<', "File to send as early data"},
652 {"enable_pha", OPT_ENABLE_PHA, '-', "Enable post-handshake-authentication"},
653 #ifndef OPENSSL_NO_SRTP
654 {"use_srtp", OPT_USE_SRTP, 's',
655 "Offer SRTP key management with a colon-separated profile list"},
656 #endif
657 #ifndef OPENSSL_NO_SRP
658 {"srpuser", OPT_SRPUSER, 's', "(deprecated) SRP authentication for 'user'"},
659 {"srppass", OPT_SRPPASS, 's', "(deprecated) Password for 'user'"},
660 {"srp_lateuser", OPT_SRP_LATEUSER, '-',
661 "(deprecated) SRP username into second ClientHello message"},
662 {"srp_moregroups", OPT_SRP_MOREGROUPS, '-',
663 "(deprecated) Tolerate other than the known g N values."},
664 {"srp_strength", OPT_SRP_STRENGTH, 'p',
665 "(deprecated) Minimal length in bits for N"},
666 #endif
667
668 OPT_R_OPTIONS,
669 OPT_S_OPTIONS,
670 OPT_V_OPTIONS,
671 {"CRL", OPT_CRL, '<', "CRL file to use"},
672 {"crl_download", OPT_CRL_DOWNLOAD, '-', "Download CRL from distribution points"},
673 {"CRLform", OPT_CRLFORM, 'F', "CRL format (PEM or DER); default PEM"},
674 {"verify_return_error", OPT_VERIFY_RET_ERROR, '-',
675 "Close connection on verification error"},
676 {"verify_quiet", OPT_VERIFY_QUIET, '-', "Restrict verify output to errors"},
677 {"chainCAfile", OPT_CHAINCAFILE, '<',
678 "CA file for certificate chain (PEM format)"},
679 {"chainCApath", OPT_CHAINCAPATH, '/',
680 "Use dir as certificate store path to build CA certificate chain"},
681 {"chainCAstore", OPT_CHAINCASTORE, ':',
682 "CA store URI for certificate chain"},
683 {"verifyCAfile", OPT_VERIFYCAFILE, '<',
684 "CA file for certificate verification (PEM format)"},
685 {"verifyCApath", OPT_VERIFYCAPATH, '/',
686 "Use dir as certificate store path to verify CA certificate"},
687 {"verifyCAstore", OPT_VERIFYCASTORE, ':',
688 "CA store URI for certificate verification"},
689 OPT_X_OPTIONS,
690 OPT_PROV_OPTIONS,
691
692 OPT_PARAMETERS(),
693 {"host:port", 0, 0, "Where to connect; same as -connect option"},
694 {NULL}
695 };
696
697 typedef enum PROTOCOL_choice {
698 PROTO_OFF,
699 PROTO_SMTP,
700 PROTO_POP3,
701 PROTO_IMAP,
702 PROTO_FTP,
703 PROTO_TELNET,
704 PROTO_XMPP,
705 PROTO_XMPP_SERVER,
706 PROTO_IRC,
707 PROTO_MYSQL,
708 PROTO_POSTGRES,
709 PROTO_LMTP,
710 PROTO_NNTP,
711 PROTO_SIEVE,
712 PROTO_LDAP
713 } PROTOCOL_CHOICE;
714
715 static const OPT_PAIR services[] = {
716 {"smtp", PROTO_SMTP},
717 {"pop3", PROTO_POP3},
718 {"imap", PROTO_IMAP},
719 {"ftp", PROTO_FTP},
720 {"xmpp", PROTO_XMPP},
721 {"xmpp-server", PROTO_XMPP_SERVER},
722 {"telnet", PROTO_TELNET},
723 {"irc", PROTO_IRC},
724 {"mysql", PROTO_MYSQL},
725 {"postgres", PROTO_POSTGRES},
726 {"lmtp", PROTO_LMTP},
727 {"nntp", PROTO_NNTP},
728 {"sieve", PROTO_SIEVE},
729 {"ldap", PROTO_LDAP},
730 {NULL, 0}
731 };
732
733 #define IS_INET_FLAG(o) \
734 (o == OPT_4 || o == OPT_6 || o == OPT_HOST || o == OPT_PORT || o == OPT_CONNECT)
735 #define IS_UNIX_FLAG(o) (o == OPT_UNIX)
736
737 #define IS_PROT_FLAG(o) \
738 (o == OPT_SSL3 || o == OPT_TLS1 || o == OPT_TLS1_1 || o == OPT_TLS1_2 \
739 || o == OPT_TLS1_3 || o == OPT_DTLS || o == OPT_DTLS1 || o == OPT_DTLS1_2)
740
741 /* Free |*dest| and optionally set it to a copy of |source|. */
freeandcopy(char ** dest,const char * source)742 static void freeandcopy(char **dest, const char *source)
743 {
744 OPENSSL_free(*dest);
745 *dest = NULL;
746 if (source != NULL)
747 *dest = OPENSSL_strdup(source);
748 }
749
new_session_cb(SSL * s,SSL_SESSION * sess)750 static int new_session_cb(SSL *s, SSL_SESSION *sess)
751 {
752
753 if (sess_out != NULL) {
754 BIO *stmp = BIO_new_file(sess_out, "w");
755
756 if (stmp == NULL) {
757 BIO_printf(bio_err, "Error writing session file %s\n", sess_out);
758 } else {
759 PEM_write_bio_SSL_SESSION(stmp, sess);
760 BIO_free(stmp);
761 }
762 }
763
764 /*
765 * Session data gets dumped on connection for TLSv1.2 and below, and on
766 * arrival of the NewSessionTicket for TLSv1.3.
767 */
768 if (SSL_version(s) == TLS1_3_VERSION) {
769 BIO_printf(bio_c_out,
770 "---\nPost-Handshake New Session Ticket arrived:\n");
771 SSL_SESSION_print(bio_c_out, sess);
772 BIO_printf(bio_c_out, "---\n");
773 }
774
775 /*
776 * We always return a "fail" response so that the session gets freed again
777 * because we haven't used the reference.
778 */
779 return 0;
780 }
781
s_client_main(int argc,char ** argv)782 int s_client_main(int argc, char **argv)
783 {
784 BIO *sbio;
785 EVP_PKEY *key = NULL;
786 SSL *con = NULL;
787 SSL_CTX *ctx = NULL;
788 STACK_OF(X509) *chain = NULL;
789 X509 *cert = NULL;
790 X509_VERIFY_PARAM *vpm = NULL;
791 SSL_EXCERT *exc = NULL;
792 SSL_CONF_CTX *cctx = NULL;
793 STACK_OF(OPENSSL_STRING) *ssl_args = NULL;
794 char *dane_tlsa_domain = NULL;
795 STACK_OF(OPENSSL_STRING) *dane_tlsa_rrset = NULL;
796 int dane_ee_no_name = 0;
797 STACK_OF(X509_CRL) *crls = NULL;
798 const SSL_METHOD *meth = TLS_client_method();
799 const char *CApath = NULL, *CAfile = NULL, *CAstore = NULL;
800 char *cbuf = NULL, *sbuf = NULL, *mbuf = NULL;
801 char *proxystr = NULL, *proxyuser = NULL;
802 char *proxypassarg = NULL, *proxypass = NULL;
803 char *connectstr = NULL, *bindstr = NULL;
804 char *cert_file = NULL, *key_file = NULL, *chain_file = NULL;
805 char *chCApath = NULL, *chCAfile = NULL, *chCAstore = NULL, *host = NULL;
806 char *thost = NULL, *tport = NULL;
807 char *port = NULL;
808 char *bindhost = NULL, *bindport = NULL;
809 char *passarg = NULL, *pass = NULL;
810 char *vfyCApath = NULL, *vfyCAfile = NULL, *vfyCAstore = NULL;
811 char *ReqCAfile = NULL;
812 char *sess_in = NULL, *crl_file = NULL, *p;
813 const char *protohost = NULL;
814 struct timeval timeout, *timeoutp;
815 fd_set readfds, writefds;
816 int noCApath = 0, noCAfile = 0, noCAstore = 0;
817 int build_chain = 0, cbuf_len, cbuf_off, cert_format = FORMAT_UNDEF;
818 int key_format = FORMAT_UNDEF, crlf = 0, full_log = 1, mbuf_len = 0;
819 int prexit = 0;
820 int sdebug = 0;
821 int reconnect = 0, verify = SSL_VERIFY_NONE, vpmtouched = 0;
822 int ret = 1, in_init = 1, i, nbio_test = 0, sock = -1, k, width, state = 0;
823 int sbuf_len, sbuf_off, cmdletters = 1;
824 int socket_family = AF_UNSPEC, socket_type = SOCK_STREAM, protocol = 0;
825 int starttls_proto = PROTO_OFF, crl_format = FORMAT_UNDEF, crl_download = 0;
826 int write_tty, read_tty, write_ssl, read_ssl, tty_on, ssl_pending;
827 #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS)
828 int at_eof = 0;
829 #endif
830 int read_buf_len = 0;
831 int fallback_scsv = 0;
832 OPTION_CHOICE o;
833 #ifndef OPENSSL_NO_DTLS
834 int enable_timeouts = 0;
835 long socket_mtu = 0;
836 #endif
837 #ifndef OPENSSL_NO_ENGINE
838 ENGINE *ssl_client_engine = NULL;
839 #endif
840 ENGINE *e = NULL;
841 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
842 struct timeval tv;
843 #endif
844 const char *servername = NULL;
845 char *sname_alloc = NULL;
846 int noservername = 0;
847 const char *alpn_in = NULL;
848 tlsextctx tlsextcbp = { NULL, 0 };
849 const char *ssl_config = NULL;
850 #define MAX_SI_TYPES 100
851 unsigned short serverinfo_types[MAX_SI_TYPES];
852 int serverinfo_count = 0, start = 0, len;
853 #ifndef OPENSSL_NO_NEXTPROTONEG
854 const char *next_proto_neg_in = NULL;
855 #endif
856 #ifndef OPENSSL_NO_SRP
857 char *srppass = NULL;
858 int srp_lateuser = 0;
859 SRP_ARG srp_arg = { NULL, NULL, 0, 0, 0, 1024 };
860 #endif
861 #ifndef OPENSSL_NO_SRTP
862 char *srtp_profiles = NULL;
863 #endif
864 #ifndef OPENSSL_NO_CT
865 char *ctlog_file = NULL;
866 int ct_validation = 0;
867 #endif
868 int min_version = 0, max_version = 0, prot_opt = 0, no_prot_opt = 0;
869 int async = 0;
870 unsigned int max_send_fragment = 0;
871 unsigned int split_send_fragment = 0, max_pipelines = 0;
872 enum { use_inet, use_unix, use_unknown } connect_type = use_unknown;
873 int count4or6 = 0;
874 uint8_t maxfraglen = 0;
875 int c_nbio = 0, c_msg = 0, c_ign_eof = 0, c_brief = 0;
876 int c_tlsextdebug = 0;
877 #ifndef OPENSSL_NO_OCSP
878 int c_status_req = 0;
879 #endif
880 BIO *bio_c_msg = NULL;
881 const char *keylog_file = NULL, *early_data_file = NULL;
882 #ifndef OPENSSL_NO_DTLS
883 int isdtls = 0;
884 #endif
885 char *psksessf = NULL;
886 int enable_pha = 0;
887 #ifndef OPENSSL_NO_SCTP
888 int sctp_label_bug = 0;
889 #endif
890 int ignore_unexpected_eof = 0;
891
892 FD_ZERO(&readfds);
893 FD_ZERO(&writefds);
894 /* Known false-positive of MemorySanitizer. */
895 #if defined(__has_feature)
896 # if __has_feature(memory_sanitizer)
897 __msan_unpoison(&readfds, sizeof(readfds));
898 __msan_unpoison(&writefds, sizeof(writefds));
899 # endif
900 #endif
901
902 c_quiet = 0;
903 c_debug = 0;
904 c_showcerts = 0;
905 c_nbio = 0;
906 port = OPENSSL_strdup(PORT);
907 vpm = X509_VERIFY_PARAM_new();
908 cctx = SSL_CONF_CTX_new();
909
910 if (port == NULL || vpm == NULL || cctx == NULL) {
911 BIO_printf(bio_err, "%s: out of memory\n", opt_getprog());
912 goto end;
913 }
914
915 cbuf = app_malloc(BUFSIZZ, "cbuf");
916 sbuf = app_malloc(BUFSIZZ, "sbuf");
917 mbuf = app_malloc(BUFSIZZ, "mbuf");
918
919 SSL_CONF_CTX_set_flags(cctx, SSL_CONF_FLAG_CLIENT | SSL_CONF_FLAG_CMDLINE);
920
921 prog = opt_init(argc, argv, s_client_options);
922 while ((o = opt_next()) != OPT_EOF) {
923 /* Check for intermixing flags. */
924 if (connect_type == use_unix && IS_INET_FLAG(o)) {
925 BIO_printf(bio_err,
926 "%s: Intermixed protocol flags (unix and internet domains)\n",
927 prog);
928 goto end;
929 }
930 if (connect_type == use_inet && IS_UNIX_FLAG(o)) {
931 BIO_printf(bio_err,
932 "%s: Intermixed protocol flags (internet and unix domains)\n",
933 prog);
934 goto end;
935 }
936
937 if (IS_PROT_FLAG(o) && ++prot_opt > 1) {
938 BIO_printf(bio_err, "Cannot supply multiple protocol flags\n");
939 goto end;
940 }
941 if (IS_NO_PROT_FLAG(o))
942 no_prot_opt++;
943 if (prot_opt == 1 && no_prot_opt) {
944 BIO_printf(bio_err,
945 "Cannot supply both a protocol flag and '-no_<prot>'\n");
946 goto end;
947 }
948
949 switch (o) {
950 case OPT_EOF:
951 case OPT_ERR:
952 opthelp:
953 BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
954 goto end;
955 case OPT_HELP:
956 opt_help(s_client_options);
957 ret = 0;
958 goto end;
959 case OPT_4:
960 connect_type = use_inet;
961 socket_family = AF_INET;
962 count4or6++;
963 break;
964 #ifdef AF_INET6
965 case OPT_6:
966 connect_type = use_inet;
967 socket_family = AF_INET6;
968 count4or6++;
969 break;
970 #endif
971 case OPT_HOST:
972 connect_type = use_inet;
973 freeandcopy(&host, opt_arg());
974 break;
975 case OPT_PORT:
976 connect_type = use_inet;
977 freeandcopy(&port, opt_arg());
978 break;
979 case OPT_CONNECT:
980 connect_type = use_inet;
981 freeandcopy(&connectstr, opt_arg());
982 break;
983 case OPT_BIND:
984 freeandcopy(&bindstr, opt_arg());
985 break;
986 case OPT_PROXY:
987 proxystr = opt_arg();
988 break;
989 case OPT_PROXY_USER:
990 proxyuser = opt_arg();
991 break;
992 case OPT_PROXY_PASS:
993 proxypassarg = opt_arg();
994 break;
995 #ifdef AF_UNIX
996 case OPT_UNIX:
997 connect_type = use_unix;
998 socket_family = AF_UNIX;
999 freeandcopy(&host, opt_arg());
1000 break;
1001 #endif
1002 case OPT_XMPPHOST:
1003 /* fall through, since this is an alias */
1004 case OPT_PROTOHOST:
1005 protohost = opt_arg();
1006 break;
1007 case OPT_VERIFY:
1008 verify = SSL_VERIFY_PEER;
1009 verify_args.depth = atoi(opt_arg());
1010 if (!c_quiet)
1011 BIO_printf(bio_err, "verify depth is %d\n", verify_args.depth);
1012 break;
1013 case OPT_CERT:
1014 cert_file = opt_arg();
1015 break;
1016 case OPT_NAMEOPT:
1017 if (!set_nameopt(opt_arg()))
1018 goto end;
1019 break;
1020 case OPT_CRL:
1021 crl_file = opt_arg();
1022 break;
1023 case OPT_CRL_DOWNLOAD:
1024 crl_download = 1;
1025 break;
1026 case OPT_SESS_OUT:
1027 sess_out = opt_arg();
1028 break;
1029 case OPT_SESS_IN:
1030 sess_in = opt_arg();
1031 break;
1032 case OPT_CERTFORM:
1033 if (!opt_format(opt_arg(), OPT_FMT_ANY, &cert_format))
1034 goto opthelp;
1035 break;
1036 case OPT_CRLFORM:
1037 if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &crl_format))
1038 goto opthelp;
1039 break;
1040 case OPT_VERIFY_RET_ERROR:
1041 verify = SSL_VERIFY_PEER;
1042 verify_args.return_error = 1;
1043 break;
1044 case OPT_VERIFY_QUIET:
1045 verify_args.quiet = 1;
1046 break;
1047 case OPT_BRIEF:
1048 c_brief = verify_args.quiet = c_quiet = 1;
1049 break;
1050 case OPT_S_CASES:
1051 if (ssl_args == NULL)
1052 ssl_args = sk_OPENSSL_STRING_new_null();
1053 if (ssl_args == NULL
1054 || !sk_OPENSSL_STRING_push(ssl_args, opt_flag())
1055 || !sk_OPENSSL_STRING_push(ssl_args, opt_arg())) {
1056 BIO_printf(bio_err, "%s: Memory allocation failure\n", prog);
1057 goto end;
1058 }
1059 break;
1060 case OPT_V_CASES:
1061 if (!opt_verify(o, vpm))
1062 goto end;
1063 vpmtouched++;
1064 break;
1065 case OPT_X_CASES:
1066 if (!args_excert(o, &exc))
1067 goto end;
1068 break;
1069 case OPT_IGNORE_UNEXPECTED_EOF:
1070 ignore_unexpected_eof = 1;
1071 break;
1072 case OPT_PREXIT:
1073 prexit = 1;
1074 break;
1075 case OPT_CRLF:
1076 crlf = 1;
1077 break;
1078 case OPT_QUIET:
1079 c_quiet = c_ign_eof = 1;
1080 break;
1081 case OPT_NBIO:
1082 c_nbio = 1;
1083 break;
1084 case OPT_NOCMDS:
1085 cmdletters = 0;
1086 break;
1087 case OPT_ENGINE:
1088 e = setup_engine(opt_arg(), 1);
1089 break;
1090 case OPT_SSL_CLIENT_ENGINE:
1091 #ifndef OPENSSL_NO_ENGINE
1092 ssl_client_engine = setup_engine(opt_arg(), 0);
1093 if (ssl_client_engine == NULL) {
1094 BIO_printf(bio_err, "Error getting client auth engine\n");
1095 goto opthelp;
1096 }
1097 #endif
1098 break;
1099 case OPT_R_CASES:
1100 if (!opt_rand(o))
1101 goto end;
1102 break;
1103 case OPT_PROV_CASES:
1104 if (!opt_provider(o))
1105 goto end;
1106 break;
1107 case OPT_IGN_EOF:
1108 c_ign_eof = 1;
1109 break;
1110 case OPT_NO_IGN_EOF:
1111 c_ign_eof = 0;
1112 break;
1113 case OPT_DEBUG:
1114 c_debug = 1;
1115 break;
1116 case OPT_TLSEXTDEBUG:
1117 c_tlsextdebug = 1;
1118 break;
1119 case OPT_STATUS:
1120 #ifndef OPENSSL_NO_OCSP
1121 c_status_req = 1;
1122 #endif
1123 break;
1124 case OPT_WDEBUG:
1125 #ifdef WATT32
1126 dbug_init();
1127 #endif
1128 break;
1129 case OPT_MSG:
1130 c_msg = 1;
1131 break;
1132 case OPT_MSGFILE:
1133 bio_c_msg = BIO_new_file(opt_arg(), "w");
1134 if (bio_c_msg == NULL) {
1135 BIO_printf(bio_err, "Error writing file %s\n", opt_arg());
1136 goto end;
1137 }
1138 break;
1139 case OPT_TRACE:
1140 #ifndef OPENSSL_NO_SSL_TRACE
1141 c_msg = 2;
1142 #endif
1143 break;
1144 case OPT_SECURITY_DEBUG:
1145 sdebug = 1;
1146 break;
1147 case OPT_SECURITY_DEBUG_VERBOSE:
1148 sdebug = 2;
1149 break;
1150 case OPT_SHOWCERTS:
1151 c_showcerts = 1;
1152 break;
1153 case OPT_NBIO_TEST:
1154 nbio_test = 1;
1155 break;
1156 case OPT_STATE:
1157 state = 1;
1158 break;
1159 case OPT_PSK_IDENTITY:
1160 psk_identity = opt_arg();
1161 break;
1162 case OPT_PSK:
1163 for (p = psk_key = opt_arg(); *p; p++) {
1164 if (isxdigit(_UC(*p)))
1165 continue;
1166 BIO_printf(bio_err, "Not a hex number '%s'\n", psk_key);
1167 goto end;
1168 }
1169 break;
1170 case OPT_PSK_SESS:
1171 psksessf = opt_arg();
1172 break;
1173 #ifndef OPENSSL_NO_SRP
1174 case OPT_SRPUSER:
1175 srp_arg.srplogin = opt_arg();
1176 if (min_version < TLS1_VERSION)
1177 min_version = TLS1_VERSION;
1178 break;
1179 case OPT_SRPPASS:
1180 srppass = opt_arg();
1181 if (min_version < TLS1_VERSION)
1182 min_version = TLS1_VERSION;
1183 break;
1184 case OPT_SRP_STRENGTH:
1185 srp_arg.strength = atoi(opt_arg());
1186 BIO_printf(bio_err, "SRP minimal length for N is %d\n",
1187 srp_arg.strength);
1188 if (min_version < TLS1_VERSION)
1189 min_version = TLS1_VERSION;
1190 break;
1191 case OPT_SRP_LATEUSER:
1192 srp_lateuser = 1;
1193 if (min_version < TLS1_VERSION)
1194 min_version = TLS1_VERSION;
1195 break;
1196 case OPT_SRP_MOREGROUPS:
1197 srp_arg.amp = 1;
1198 if (min_version < TLS1_VERSION)
1199 min_version = TLS1_VERSION;
1200 break;
1201 #endif
1202 case OPT_SSL_CONFIG:
1203 ssl_config = opt_arg();
1204 break;
1205 case OPT_SSL3:
1206 min_version = SSL3_VERSION;
1207 max_version = SSL3_VERSION;
1208 socket_type = SOCK_STREAM;
1209 #ifndef OPENSSL_NO_DTLS
1210 isdtls = 0;
1211 #endif
1212 break;
1213 case OPT_TLS1_3:
1214 min_version = TLS1_3_VERSION;
1215 max_version = TLS1_3_VERSION;
1216 socket_type = SOCK_STREAM;
1217 #ifndef OPENSSL_NO_DTLS
1218 isdtls = 0;
1219 #endif
1220 break;
1221 case OPT_TLS1_2:
1222 min_version = TLS1_2_VERSION;
1223 max_version = TLS1_2_VERSION;
1224 socket_type = SOCK_STREAM;
1225 #ifndef OPENSSL_NO_DTLS
1226 isdtls = 0;
1227 #endif
1228 break;
1229 case OPT_TLS1_1:
1230 min_version = TLS1_1_VERSION;
1231 max_version = TLS1_1_VERSION;
1232 socket_type = SOCK_STREAM;
1233 #ifndef OPENSSL_NO_DTLS
1234 isdtls = 0;
1235 #endif
1236 break;
1237 case OPT_TLS1:
1238 min_version = TLS1_VERSION;
1239 max_version = TLS1_VERSION;
1240 socket_type = SOCK_STREAM;
1241 #ifndef OPENSSL_NO_DTLS
1242 isdtls = 0;
1243 #endif
1244 break;
1245 case OPT_DTLS:
1246 #ifndef OPENSSL_NO_DTLS
1247 meth = DTLS_client_method();
1248 socket_type = SOCK_DGRAM;
1249 isdtls = 1;
1250 #endif
1251 break;
1252 case OPT_DTLS1:
1253 #ifndef OPENSSL_NO_DTLS1
1254 meth = DTLS_client_method();
1255 min_version = DTLS1_VERSION;
1256 max_version = DTLS1_VERSION;
1257 socket_type = SOCK_DGRAM;
1258 isdtls = 1;
1259 #endif
1260 break;
1261 case OPT_DTLS1_2:
1262 #ifndef OPENSSL_NO_DTLS1_2
1263 meth = DTLS_client_method();
1264 min_version = DTLS1_2_VERSION;
1265 max_version = DTLS1_2_VERSION;
1266 socket_type = SOCK_DGRAM;
1267 isdtls = 1;
1268 #endif
1269 break;
1270 case OPT_SCTP:
1271 #ifndef OPENSSL_NO_SCTP
1272 protocol = IPPROTO_SCTP;
1273 #endif
1274 break;
1275 case OPT_SCTP_LABEL_BUG:
1276 #ifndef OPENSSL_NO_SCTP
1277 sctp_label_bug = 1;
1278 #endif
1279 break;
1280 case OPT_TIMEOUT:
1281 #ifndef OPENSSL_NO_DTLS
1282 enable_timeouts = 1;
1283 #endif
1284 break;
1285 case OPT_MTU:
1286 #ifndef OPENSSL_NO_DTLS
1287 socket_mtu = atol(opt_arg());
1288 #endif
1289 break;
1290 case OPT_FALLBACKSCSV:
1291 fallback_scsv = 1;
1292 break;
1293 case OPT_KEYFORM:
1294 if (!opt_format(opt_arg(), OPT_FMT_ANY, &key_format))
1295 goto opthelp;
1296 break;
1297 case OPT_PASS:
1298 passarg = opt_arg();
1299 break;
1300 case OPT_CERT_CHAIN:
1301 chain_file = opt_arg();
1302 break;
1303 case OPT_KEY:
1304 key_file = opt_arg();
1305 break;
1306 case OPT_RECONNECT:
1307 reconnect = 5;
1308 break;
1309 case OPT_CAPATH:
1310 CApath = opt_arg();
1311 break;
1312 case OPT_NOCAPATH:
1313 noCApath = 1;
1314 break;
1315 case OPT_CHAINCAPATH:
1316 chCApath = opt_arg();
1317 break;
1318 case OPT_VERIFYCAPATH:
1319 vfyCApath = opt_arg();
1320 break;
1321 case OPT_BUILD_CHAIN:
1322 build_chain = 1;
1323 break;
1324 case OPT_REQCAFILE:
1325 ReqCAfile = opt_arg();
1326 break;
1327 case OPT_CAFILE:
1328 CAfile = opt_arg();
1329 break;
1330 case OPT_NOCAFILE:
1331 noCAfile = 1;
1332 break;
1333 #ifndef OPENSSL_NO_CT
1334 case OPT_NOCT:
1335 ct_validation = 0;
1336 break;
1337 case OPT_CT:
1338 ct_validation = 1;
1339 break;
1340 case OPT_CTLOG_FILE:
1341 ctlog_file = opt_arg();
1342 break;
1343 #endif
1344 case OPT_CHAINCAFILE:
1345 chCAfile = opt_arg();
1346 break;
1347 case OPT_VERIFYCAFILE:
1348 vfyCAfile = opt_arg();
1349 break;
1350 case OPT_CASTORE:
1351 CAstore = opt_arg();
1352 break;
1353 case OPT_NOCASTORE:
1354 noCAstore = 1;
1355 break;
1356 case OPT_CHAINCASTORE:
1357 chCAstore = opt_arg();
1358 break;
1359 case OPT_VERIFYCASTORE:
1360 vfyCAstore = opt_arg();
1361 break;
1362 case OPT_DANE_TLSA_DOMAIN:
1363 dane_tlsa_domain = opt_arg();
1364 break;
1365 case OPT_DANE_TLSA_RRDATA:
1366 if (dane_tlsa_rrset == NULL)
1367 dane_tlsa_rrset = sk_OPENSSL_STRING_new_null();
1368 if (dane_tlsa_rrset == NULL ||
1369 !sk_OPENSSL_STRING_push(dane_tlsa_rrset, opt_arg())) {
1370 BIO_printf(bio_err, "%s: Memory allocation failure\n", prog);
1371 goto end;
1372 }
1373 break;
1374 case OPT_DANE_EE_NO_NAME:
1375 dane_ee_no_name = 1;
1376 break;
1377 case OPT_NEXTPROTONEG:
1378 #ifndef OPENSSL_NO_NEXTPROTONEG
1379 next_proto_neg_in = opt_arg();
1380 #endif
1381 break;
1382 case OPT_ALPN:
1383 alpn_in = opt_arg();
1384 break;
1385 case OPT_SERVERINFO:
1386 p = opt_arg();
1387 len = strlen(p);
1388 for (start = 0, i = 0; i <= len; ++i) {
1389 if (i == len || p[i] == ',') {
1390 serverinfo_types[serverinfo_count] = atoi(p + start);
1391 if (++serverinfo_count == MAX_SI_TYPES)
1392 break;
1393 start = i + 1;
1394 }
1395 }
1396 break;
1397 case OPT_STARTTLS:
1398 if (!opt_pair(opt_arg(), services, &starttls_proto))
1399 goto end;
1400 break;
1401 case OPT_SERVERNAME:
1402 servername = opt_arg();
1403 break;
1404 case OPT_NOSERVERNAME:
1405 noservername = 1;
1406 break;
1407 case OPT_USE_SRTP:
1408 #ifndef OPENSSL_NO_SRTP
1409 srtp_profiles = opt_arg();
1410 #endif
1411 break;
1412 case OPT_KEYMATEXPORT:
1413 keymatexportlabel = opt_arg();
1414 break;
1415 case OPT_KEYMATEXPORTLEN:
1416 keymatexportlen = atoi(opt_arg());
1417 break;
1418 case OPT_ASYNC:
1419 async = 1;
1420 break;
1421 case OPT_MAXFRAGLEN:
1422 len = atoi(opt_arg());
1423 switch (len) {
1424 case 512:
1425 maxfraglen = TLSEXT_max_fragment_length_512;
1426 break;
1427 case 1024:
1428 maxfraglen = TLSEXT_max_fragment_length_1024;
1429 break;
1430 case 2048:
1431 maxfraglen = TLSEXT_max_fragment_length_2048;
1432 break;
1433 case 4096:
1434 maxfraglen = TLSEXT_max_fragment_length_4096;
1435 break;
1436 default:
1437 BIO_printf(bio_err,
1438 "%s: Max Fragment Len %u is out of permitted values",
1439 prog, len);
1440 goto opthelp;
1441 }
1442 break;
1443 case OPT_MAX_SEND_FRAG:
1444 max_send_fragment = atoi(opt_arg());
1445 break;
1446 case OPT_SPLIT_SEND_FRAG:
1447 split_send_fragment = atoi(opt_arg());
1448 break;
1449 case OPT_MAX_PIPELINES:
1450 max_pipelines = atoi(opt_arg());
1451 break;
1452 case OPT_READ_BUF:
1453 read_buf_len = atoi(opt_arg());
1454 break;
1455 case OPT_KEYLOG_FILE:
1456 keylog_file = opt_arg();
1457 break;
1458 case OPT_EARLY_DATA:
1459 early_data_file = opt_arg();
1460 break;
1461 case OPT_ENABLE_PHA:
1462 enable_pha = 1;
1463 break;
1464 }
1465 }
1466
1467 /* Optional argument is connect string if -connect not used. */
1468 argc = opt_num_rest();
1469 if (argc == 1) {
1470 /* Don't allow -connect and a separate argument. */
1471 if (connectstr != NULL) {
1472 BIO_printf(bio_err,
1473 "%s: cannot provide both -connect option and target parameter\n",
1474 prog);
1475 goto opthelp;
1476 }
1477 connect_type = use_inet;
1478 freeandcopy(&connectstr, *opt_rest());
1479 } else if (argc != 0) {
1480 goto opthelp;
1481 }
1482 if (!app_RAND_load())
1483 goto end;
1484
1485 if (count4or6 >= 2) {
1486 BIO_printf(bio_err, "%s: Can't use both -4 and -6\n", prog);
1487 goto opthelp;
1488 }
1489 if (noservername) {
1490 if (servername != NULL) {
1491 BIO_printf(bio_err,
1492 "%s: Can't use -servername and -noservername together\n",
1493 prog);
1494 goto opthelp;
1495 }
1496 if (dane_tlsa_domain != NULL) {
1497 BIO_printf(bio_err,
1498 "%s: Can't use -dane_tlsa_domain and -noservername together\n",
1499 prog);
1500 goto opthelp;
1501 }
1502 }
1503
1504 #ifndef OPENSSL_NO_NEXTPROTONEG
1505 if (min_version == TLS1_3_VERSION && next_proto_neg_in != NULL) {
1506 BIO_printf(bio_err, "Cannot supply -nextprotoneg with TLSv1.3\n");
1507 goto opthelp;
1508 }
1509 #endif
1510
1511 if (connectstr != NULL) {
1512 int res;
1513 char *tmp_host = host, *tmp_port = port;
1514
1515 res = BIO_parse_hostserv(connectstr, &host, &port, BIO_PARSE_PRIO_HOST);
1516 if (tmp_host != host)
1517 OPENSSL_free(tmp_host);
1518 if (tmp_port != port)
1519 OPENSSL_free(tmp_port);
1520 if (!res) {
1521 BIO_printf(bio_err,
1522 "%s: -connect argument or target parameter malformed or ambiguous\n",
1523 prog);
1524 goto end;
1525 }
1526 }
1527
1528 if (proxystr != NULL) {
1529 int res;
1530 char *tmp_host = host, *tmp_port = port;
1531
1532 if (host == NULL || port == NULL) {
1533 BIO_printf(bio_err, "%s: -proxy requires use of -connect or target parameter\n", prog);
1534 goto opthelp;
1535 }
1536
1537 if (servername == NULL && !noservername) {
1538 servername = sname_alloc = OPENSSL_strdup(host);
1539 if (sname_alloc == NULL) {
1540 BIO_printf(bio_err, "%s: out of memory\n", prog);
1541 goto end;
1542 }
1543 }
1544
1545 /* Retain the original target host:port for use in the HTTP proxy connect string */
1546 thost = OPENSSL_strdup(host);
1547 tport = OPENSSL_strdup(port);
1548 if (thost == NULL || tport == NULL) {
1549 BIO_printf(bio_err, "%s: out of memory\n", prog);
1550 goto end;
1551 }
1552
1553 res = BIO_parse_hostserv(proxystr, &host, &port, BIO_PARSE_PRIO_HOST);
1554 if (tmp_host != host)
1555 OPENSSL_free(tmp_host);
1556 if (tmp_port != port)
1557 OPENSSL_free(tmp_port);
1558 if (!res) {
1559 BIO_printf(bio_err,
1560 "%s: -proxy argument malformed or ambiguous\n", prog);
1561 goto end;
1562 }
1563 }
1564
1565 if (bindstr != NULL) {
1566 int res;
1567 res = BIO_parse_hostserv(bindstr, &bindhost, &bindport,
1568 BIO_PARSE_PRIO_HOST);
1569 if (!res) {
1570 BIO_printf(bio_err,
1571 "%s: -bind argument parameter malformed or ambiguous\n",
1572 prog);
1573 goto end;
1574 }
1575 }
1576
1577 #ifdef AF_UNIX
1578 if (socket_family == AF_UNIX && socket_type != SOCK_STREAM) {
1579 BIO_printf(bio_err,
1580 "Can't use unix sockets and datagrams together\n");
1581 goto end;
1582 }
1583 #endif
1584
1585 #ifndef OPENSSL_NO_SCTP
1586 if (protocol == IPPROTO_SCTP) {
1587 if (socket_type != SOCK_DGRAM) {
1588 BIO_printf(bio_err, "Can't use -sctp without DTLS\n");
1589 goto end;
1590 }
1591 /* SCTP is unusual. It uses DTLS over a SOCK_STREAM protocol */
1592 socket_type = SOCK_STREAM;
1593 }
1594 #endif
1595
1596 #if !defined(OPENSSL_NO_NEXTPROTONEG)
1597 next_proto.status = -1;
1598 if (next_proto_neg_in) {
1599 next_proto.data =
1600 next_protos_parse(&next_proto.len, next_proto_neg_in);
1601 if (next_proto.data == NULL) {
1602 BIO_printf(bio_err, "Error parsing -nextprotoneg argument\n");
1603 goto end;
1604 }
1605 } else
1606 next_proto.data = NULL;
1607 #endif
1608
1609 if (!app_passwd(passarg, NULL, &pass, NULL)) {
1610 BIO_printf(bio_err, "Error getting private key password\n");
1611 goto end;
1612 }
1613
1614 if (!app_passwd(proxypassarg, NULL, &proxypass, NULL)) {
1615 BIO_printf(bio_err, "Error getting proxy password\n");
1616 goto end;
1617 }
1618
1619 if (proxypass != NULL && proxyuser == NULL) {
1620 BIO_printf(bio_err, "Error: Must specify proxy_user with proxy_pass\n");
1621 goto end;
1622 }
1623
1624 if (key_file == NULL)
1625 key_file = cert_file;
1626
1627 if (key_file != NULL) {
1628 key = load_key(key_file, key_format, 0, pass, e,
1629 "client certificate private key");
1630 if (key == NULL)
1631 goto end;
1632 }
1633
1634 if (cert_file != NULL) {
1635 cert = load_cert_pass(cert_file, cert_format, 1, pass,
1636 "client certificate");
1637 if (cert == NULL)
1638 goto end;
1639 }
1640
1641 if (chain_file != NULL) {
1642 if (!load_certs(chain_file, 0, &chain, pass, "client certificate chain"))
1643 goto end;
1644 }
1645
1646 if (crl_file != NULL) {
1647 X509_CRL *crl;
1648 crl = load_crl(crl_file, crl_format, 0, "CRL");
1649 if (crl == NULL)
1650 goto end;
1651 crls = sk_X509_CRL_new_null();
1652 if (crls == NULL || !sk_X509_CRL_push(crls, crl)) {
1653 BIO_puts(bio_err, "Error adding CRL\n");
1654 ERR_print_errors(bio_err);
1655 X509_CRL_free(crl);
1656 goto end;
1657 }
1658 }
1659
1660 if (!load_excert(&exc))
1661 goto end;
1662
1663 if (bio_c_out == NULL) {
1664 if (c_quiet && !c_debug) {
1665 bio_c_out = BIO_new(BIO_s_null());
1666 if (c_msg && bio_c_msg == NULL) {
1667 bio_c_msg = dup_bio_out(FORMAT_TEXT);
1668 if (bio_c_msg == NULL) {
1669 BIO_printf(bio_err, "Out of memory\n");
1670 goto end;
1671 }
1672 }
1673 } else {
1674 bio_c_out = dup_bio_out(FORMAT_TEXT);
1675 }
1676
1677 if (bio_c_out == NULL) {
1678 BIO_printf(bio_err, "Unable to create BIO\n");
1679 goto end;
1680 }
1681 }
1682 #ifndef OPENSSL_NO_SRP
1683 if (!app_passwd(srppass, NULL, &srp_arg.srppassin, NULL)) {
1684 BIO_printf(bio_err, "Error getting password\n");
1685 goto end;
1686 }
1687 #endif
1688
1689 ctx = SSL_CTX_new_ex(app_get0_libctx(), app_get0_propq(), meth);
1690 if (ctx == NULL) {
1691 ERR_print_errors(bio_err);
1692 goto end;
1693 }
1694
1695 SSL_CTX_clear_mode(ctx, SSL_MODE_AUTO_RETRY);
1696
1697 if (sdebug)
1698 ssl_ctx_security_debug(ctx, sdebug);
1699
1700 if (!config_ctx(cctx, ssl_args, ctx))
1701 goto end;
1702
1703 if (ssl_config != NULL) {
1704 if (SSL_CTX_config(ctx, ssl_config) == 0) {
1705 BIO_printf(bio_err, "Error using configuration \"%s\"\n",
1706 ssl_config);
1707 ERR_print_errors(bio_err);
1708 goto end;
1709 }
1710 }
1711
1712 #ifndef OPENSSL_NO_SCTP
1713 if (protocol == IPPROTO_SCTP && sctp_label_bug == 1)
1714 SSL_CTX_set_mode(ctx, SSL_MODE_DTLS_SCTP_LABEL_LENGTH_BUG);
1715 #endif
1716
1717 if (min_version != 0
1718 && SSL_CTX_set_min_proto_version(ctx, min_version) == 0)
1719 goto end;
1720 if (max_version != 0
1721 && SSL_CTX_set_max_proto_version(ctx, max_version) == 0)
1722 goto end;
1723
1724 if (ignore_unexpected_eof)
1725 SSL_CTX_set_options(ctx, SSL_OP_IGNORE_UNEXPECTED_EOF);
1726
1727 if (vpmtouched && !SSL_CTX_set1_param(ctx, vpm)) {
1728 BIO_printf(bio_err, "Error setting verify params\n");
1729 ERR_print_errors(bio_err);
1730 goto end;
1731 }
1732
1733 if (async) {
1734 SSL_CTX_set_mode(ctx, SSL_MODE_ASYNC);
1735 }
1736
1737 if (max_send_fragment > 0
1738 && !SSL_CTX_set_max_send_fragment(ctx, max_send_fragment)) {
1739 BIO_printf(bio_err, "%s: Max send fragment size %u is out of permitted range\n",
1740 prog, max_send_fragment);
1741 goto end;
1742 }
1743
1744 if (split_send_fragment > 0
1745 && !SSL_CTX_set_split_send_fragment(ctx, split_send_fragment)) {
1746 BIO_printf(bio_err, "%s: Split send fragment size %u is out of permitted range\n",
1747 prog, split_send_fragment);
1748 goto end;
1749 }
1750
1751 if (max_pipelines > 0
1752 && !SSL_CTX_set_max_pipelines(ctx, max_pipelines)) {
1753 BIO_printf(bio_err, "%s: Max pipelines %u is out of permitted range\n",
1754 prog, max_pipelines);
1755 goto end;
1756 }
1757
1758 if (read_buf_len > 0) {
1759 SSL_CTX_set_default_read_buffer_len(ctx, read_buf_len);
1760 }
1761
1762 if (maxfraglen > 0
1763 && !SSL_CTX_set_tlsext_max_fragment_length(ctx, maxfraglen)) {
1764 BIO_printf(bio_err,
1765 "%s: Max Fragment Length code %u is out of permitted values"
1766 "\n", prog, maxfraglen);
1767 goto end;
1768 }
1769
1770 if (!ssl_load_stores(ctx,
1771 vfyCApath, vfyCAfile, vfyCAstore,
1772 chCApath, chCAfile, chCAstore,
1773 crls, crl_download)) {
1774 BIO_printf(bio_err, "Error loading store locations\n");
1775 ERR_print_errors(bio_err);
1776 goto end;
1777 }
1778 if (ReqCAfile != NULL) {
1779 STACK_OF(X509_NAME) *nm = sk_X509_NAME_new_null();
1780
1781 if (nm == NULL || !SSL_add_file_cert_subjects_to_stack(nm, ReqCAfile)) {
1782 sk_X509_NAME_pop_free(nm, X509_NAME_free);
1783 BIO_printf(bio_err, "Error loading CA names\n");
1784 ERR_print_errors(bio_err);
1785 goto end;
1786 }
1787 SSL_CTX_set0_CA_list(ctx, nm);
1788 }
1789 #ifndef OPENSSL_NO_ENGINE
1790 if (ssl_client_engine) {
1791 if (!SSL_CTX_set_client_cert_engine(ctx, ssl_client_engine)) {
1792 BIO_puts(bio_err, "Error setting client auth engine\n");
1793 ERR_print_errors(bio_err);
1794 release_engine(ssl_client_engine);
1795 goto end;
1796 }
1797 release_engine(ssl_client_engine);
1798 }
1799 #endif
1800
1801 #ifndef OPENSSL_NO_PSK
1802 if (psk_key != NULL) {
1803 if (c_debug)
1804 BIO_printf(bio_c_out, "PSK key given, setting client callback\n");
1805 SSL_CTX_set_psk_client_callback(ctx, psk_client_cb);
1806 }
1807 #endif
1808 if (psksessf != NULL) {
1809 BIO *stmp = BIO_new_file(psksessf, "r");
1810
1811 if (stmp == NULL) {
1812 BIO_printf(bio_err, "Can't open PSK session file %s\n", psksessf);
1813 ERR_print_errors(bio_err);
1814 goto end;
1815 }
1816 psksess = PEM_read_bio_SSL_SESSION(stmp, NULL, 0, NULL);
1817 BIO_free(stmp);
1818 if (psksess == NULL) {
1819 BIO_printf(bio_err, "Can't read PSK session file %s\n", psksessf);
1820 ERR_print_errors(bio_err);
1821 goto end;
1822 }
1823 }
1824 if (psk_key != NULL || psksess != NULL)
1825 SSL_CTX_set_psk_use_session_callback(ctx, psk_use_session_cb);
1826
1827 #ifndef OPENSSL_NO_SRTP
1828 if (srtp_profiles != NULL) {
1829 /* Returns 0 on success! */
1830 if (SSL_CTX_set_tlsext_use_srtp(ctx, srtp_profiles) != 0) {
1831 BIO_printf(bio_err, "Error setting SRTP profile\n");
1832 ERR_print_errors(bio_err);
1833 goto end;
1834 }
1835 }
1836 #endif
1837
1838 if (exc != NULL)
1839 ssl_ctx_set_excert(ctx, exc);
1840
1841 #if !defined(OPENSSL_NO_NEXTPROTONEG)
1842 if (next_proto.data != NULL)
1843 SSL_CTX_set_next_proto_select_cb(ctx, next_proto_cb, &next_proto);
1844 #endif
1845 if (alpn_in) {
1846 size_t alpn_len;
1847 unsigned char *alpn = next_protos_parse(&alpn_len, alpn_in);
1848
1849 if (alpn == NULL) {
1850 BIO_printf(bio_err, "Error parsing -alpn argument\n");
1851 goto end;
1852 }
1853 /* Returns 0 on success! */
1854 if (SSL_CTX_set_alpn_protos(ctx, alpn, alpn_len) != 0) {
1855 BIO_printf(bio_err, "Error setting ALPN\n");
1856 goto end;
1857 }
1858 OPENSSL_free(alpn);
1859 }
1860
1861 for (i = 0; i < serverinfo_count; i++) {
1862 if (!SSL_CTX_add_client_custom_ext(ctx,
1863 serverinfo_types[i],
1864 NULL, NULL, NULL,
1865 serverinfo_cli_parse_cb, NULL)) {
1866 BIO_printf(bio_err,
1867 "Warning: Unable to add custom extension %u, skipping\n",
1868 serverinfo_types[i]);
1869 }
1870 }
1871
1872 if (state)
1873 SSL_CTX_set_info_callback(ctx, apps_ssl_info_callback);
1874
1875 #ifndef OPENSSL_NO_CT
1876 /* Enable SCT processing, without early connection termination */
1877 if (ct_validation &&
1878 !SSL_CTX_enable_ct(ctx, SSL_CT_VALIDATION_PERMISSIVE)) {
1879 ERR_print_errors(bio_err);
1880 goto end;
1881 }
1882
1883 if (!ctx_set_ctlog_list_file(ctx, ctlog_file)) {
1884 if (ct_validation) {
1885 ERR_print_errors(bio_err);
1886 goto end;
1887 }
1888
1889 /*
1890 * If CT validation is not enabled, the log list isn't needed so don't
1891 * show errors or abort. We try to load it regardless because then we
1892 * can show the names of the logs any SCTs came from (SCTs may be seen
1893 * even with validation disabled).
1894 */
1895 ERR_clear_error();
1896 }
1897 #endif
1898
1899 SSL_CTX_set_verify(ctx, verify, verify_callback);
1900
1901 if (!ctx_set_verify_locations(ctx, CAfile, noCAfile, CApath, noCApath,
1902 CAstore, noCAstore)) {
1903 ERR_print_errors(bio_err);
1904 goto end;
1905 }
1906
1907 ssl_ctx_add_crls(ctx, crls, crl_download);
1908
1909 if (!set_cert_key_stuff(ctx, cert, key, chain, build_chain))
1910 goto end;
1911
1912 if (!noservername) {
1913 tlsextcbp.biodebug = bio_err;
1914 SSL_CTX_set_tlsext_servername_callback(ctx, ssl_servername_cb);
1915 SSL_CTX_set_tlsext_servername_arg(ctx, &tlsextcbp);
1916 }
1917 #ifndef OPENSSL_NO_SRP
1918 if (srp_arg.srplogin != NULL
1919 && !set_up_srp_arg(ctx, &srp_arg, srp_lateuser, c_msg, c_debug))
1920 goto end;
1921 # endif
1922
1923 if (dane_tlsa_domain != NULL) {
1924 if (SSL_CTX_dane_enable(ctx) <= 0) {
1925 BIO_printf(bio_err,
1926 "%s: Error enabling DANE TLSA authentication.\n",
1927 prog);
1928 ERR_print_errors(bio_err);
1929 goto end;
1930 }
1931 }
1932
1933 /*
1934 * In TLSv1.3 NewSessionTicket messages arrive after the handshake and can
1935 * come at any time. Therefore we use a callback to write out the session
1936 * when we know about it. This approach works for < TLSv1.3 as well.
1937 */
1938 SSL_CTX_set_session_cache_mode(ctx, SSL_SESS_CACHE_CLIENT
1939 | SSL_SESS_CACHE_NO_INTERNAL_STORE);
1940 SSL_CTX_sess_set_new_cb(ctx, new_session_cb);
1941
1942 if (set_keylog_file(ctx, keylog_file))
1943 goto end;
1944
1945 con = SSL_new(ctx);
1946 if (con == NULL)
1947 goto end;
1948
1949 if (enable_pha)
1950 SSL_set_post_handshake_auth(con, 1);
1951
1952 if (sess_in != NULL) {
1953 SSL_SESSION *sess;
1954 BIO *stmp = BIO_new_file(sess_in, "r");
1955 if (stmp == NULL) {
1956 BIO_printf(bio_err, "Can't open session file %s\n", sess_in);
1957 ERR_print_errors(bio_err);
1958 goto end;
1959 }
1960 sess = PEM_read_bio_SSL_SESSION(stmp, NULL, 0, NULL);
1961 BIO_free(stmp);
1962 if (sess == NULL) {
1963 BIO_printf(bio_err, "Can't open session file %s\n", sess_in);
1964 ERR_print_errors(bio_err);
1965 goto end;
1966 }
1967 if (!SSL_set_session(con, sess)) {
1968 BIO_printf(bio_err, "Can't set session\n");
1969 ERR_print_errors(bio_err);
1970 goto end;
1971 }
1972
1973 SSL_SESSION_free(sess);
1974 }
1975
1976 if (fallback_scsv)
1977 SSL_set_mode(con, SSL_MODE_SEND_FALLBACK_SCSV);
1978
1979 if (!noservername && (servername != NULL || dane_tlsa_domain == NULL)) {
1980 if (servername == NULL) {
1981 if(host == NULL || is_dNS_name(host))
1982 servername = (host == NULL) ? "localhost" : host;
1983 }
1984 if (servername != NULL && !SSL_set_tlsext_host_name(con, servername)) {
1985 BIO_printf(bio_err, "Unable to set TLS servername extension.\n");
1986 ERR_print_errors(bio_err);
1987 goto end;
1988 }
1989 }
1990
1991 if (dane_tlsa_domain != NULL) {
1992 if (SSL_dane_enable(con, dane_tlsa_domain) <= 0) {
1993 BIO_printf(bio_err, "%s: Error enabling DANE TLSA "
1994 "authentication.\n", prog);
1995 ERR_print_errors(bio_err);
1996 goto end;
1997 }
1998 if (dane_tlsa_rrset == NULL) {
1999 BIO_printf(bio_err, "%s: DANE TLSA authentication requires at "
2000 "least one -dane_tlsa_rrdata option.\n", prog);
2001 goto end;
2002 }
2003 if (tlsa_import_rrset(con, dane_tlsa_rrset) <= 0) {
2004 BIO_printf(bio_err, "%s: Failed to import any TLSA "
2005 "records.\n", prog);
2006 goto end;
2007 }
2008 if (dane_ee_no_name)
2009 SSL_dane_set_flags(con, DANE_FLAG_NO_DANE_EE_NAMECHECKS);
2010 } else if (dane_tlsa_rrset != NULL) {
2011 BIO_printf(bio_err, "%s: DANE TLSA authentication requires the "
2012 "-dane_tlsa_domain option.\n", prog);
2013 goto end;
2014 }
2015
2016 re_start:
2017 if (init_client(&sock, host, port, bindhost, bindport, socket_family,
2018 socket_type, protocol) == 0) {
2019 BIO_printf(bio_err, "connect:errno=%d\n", get_last_socket_error());
2020 BIO_closesocket(sock);
2021 goto end;
2022 }
2023 BIO_printf(bio_c_out, "CONNECTED(%08X)\n", sock);
2024
2025 if (c_nbio) {
2026 if (!BIO_socket_nbio(sock, 1)) {
2027 ERR_print_errors(bio_err);
2028 goto end;
2029 }
2030 BIO_printf(bio_c_out, "Turned on non blocking io\n");
2031 }
2032 #ifndef OPENSSL_NO_DTLS
2033 if (isdtls) {
2034 union BIO_sock_info_u peer_info;
2035
2036 #ifndef OPENSSL_NO_SCTP
2037 if (protocol == IPPROTO_SCTP)
2038 sbio = BIO_new_dgram_sctp(sock, BIO_NOCLOSE);
2039 else
2040 #endif
2041 sbio = BIO_new_dgram(sock, BIO_NOCLOSE);
2042
2043 if (sbio == NULL || (peer_info.addr = BIO_ADDR_new()) == NULL) {
2044 BIO_printf(bio_err, "memory allocation failure\n");
2045 BIO_free(sbio);
2046 BIO_closesocket(sock);
2047 goto end;
2048 }
2049 if (!BIO_sock_info(sock, BIO_SOCK_INFO_ADDRESS, &peer_info)) {
2050 BIO_printf(bio_err, "getsockname:errno=%d\n",
2051 get_last_socket_error());
2052 BIO_free(sbio);
2053 BIO_ADDR_free(peer_info.addr);
2054 BIO_closesocket(sock);
2055 goto end;
2056 }
2057
2058 (void)BIO_ctrl_set_connected(sbio, peer_info.addr);
2059 BIO_ADDR_free(peer_info.addr);
2060 peer_info.addr = NULL;
2061
2062 if (enable_timeouts) {
2063 timeout.tv_sec = 0;
2064 timeout.tv_usec = DGRAM_RCV_TIMEOUT;
2065 BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_RECV_TIMEOUT, 0, &timeout);
2066
2067 timeout.tv_sec = 0;
2068 timeout.tv_usec = DGRAM_SND_TIMEOUT;
2069 BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_SEND_TIMEOUT, 0, &timeout);
2070 }
2071
2072 if (socket_mtu) {
2073 if (socket_mtu < DTLS_get_link_min_mtu(con)) {
2074 BIO_printf(bio_err, "MTU too small. Must be at least %ld\n",
2075 DTLS_get_link_min_mtu(con));
2076 BIO_free(sbio);
2077 goto shut;
2078 }
2079 SSL_set_options(con, SSL_OP_NO_QUERY_MTU);
2080 if (!DTLS_set_link_mtu(con, socket_mtu)) {
2081 BIO_printf(bio_err, "Failed to set MTU\n");
2082 BIO_free(sbio);
2083 goto shut;
2084 }
2085 } else {
2086 /* want to do MTU discovery */
2087 BIO_ctrl(sbio, BIO_CTRL_DGRAM_MTU_DISCOVER, 0, NULL);
2088 }
2089 } else
2090 #endif /* OPENSSL_NO_DTLS */
2091 sbio = BIO_new_socket(sock, BIO_NOCLOSE);
2092
2093 if (sbio == NULL) {
2094 BIO_printf(bio_err, "Unable to create BIO\n");
2095 ERR_print_errors(bio_err);
2096 BIO_closesocket(sock);
2097 goto end;
2098 }
2099
2100 if (nbio_test) {
2101 BIO *test;
2102
2103 test = BIO_new(BIO_f_nbio_test());
2104 if (test == NULL) {
2105 BIO_printf(bio_err, "Unable to create BIO\n");
2106 BIO_free(sbio);
2107 goto shut;
2108 }
2109 sbio = BIO_push(test, sbio);
2110 }
2111
2112 if (c_debug) {
2113 BIO_set_callback_ex(sbio, bio_dump_callback);
2114 BIO_set_callback_arg(sbio, (char *)bio_c_out);
2115 }
2116 if (c_msg) {
2117 #ifndef OPENSSL_NO_SSL_TRACE
2118 if (c_msg == 2)
2119 SSL_set_msg_callback(con, SSL_trace);
2120 else
2121 #endif
2122 SSL_set_msg_callback(con, msg_cb);
2123 SSL_set_msg_callback_arg(con, bio_c_msg ? bio_c_msg : bio_c_out);
2124 }
2125
2126 if (c_tlsextdebug) {
2127 SSL_set_tlsext_debug_callback(con, tlsext_cb);
2128 SSL_set_tlsext_debug_arg(con, bio_c_out);
2129 }
2130 #ifndef OPENSSL_NO_OCSP
2131 if (c_status_req) {
2132 SSL_set_tlsext_status_type(con, TLSEXT_STATUSTYPE_ocsp);
2133 SSL_CTX_set_tlsext_status_cb(ctx, ocsp_resp_cb);
2134 SSL_CTX_set_tlsext_status_arg(ctx, bio_c_out);
2135 }
2136 #endif
2137
2138 SSL_set_bio(con, sbio, sbio);
2139 SSL_set_connect_state(con);
2140
2141 /* ok, lets connect */
2142 if (fileno_stdin() > SSL_get_fd(con))
2143 width = fileno_stdin() + 1;
2144 else
2145 width = SSL_get_fd(con) + 1;
2146
2147 read_tty = 1;
2148 write_tty = 0;
2149 tty_on = 0;
2150 read_ssl = 1;
2151 write_ssl = 1;
2152
2153 cbuf_len = 0;
2154 cbuf_off = 0;
2155 sbuf_len = 0;
2156 sbuf_off = 0;
2157
2158 if (proxystr != NULL) {
2159 /* Here we must use the connect string target host & port */
2160 if (!OSSL_HTTP_proxy_connect(sbio, thost, tport, proxyuser, proxypass,
2161 0 /* no timeout */, bio_err, prog))
2162 goto shut;
2163 }
2164
2165 switch ((PROTOCOL_CHOICE) starttls_proto) {
2166 case PROTO_OFF:
2167 break;
2168 case PROTO_LMTP:
2169 case PROTO_SMTP:
2170 {
2171 /*
2172 * This is an ugly hack that does a lot of assumptions. We do
2173 * have to handle multi-line responses which may come in a single
2174 * packet or not. We therefore have to use BIO_gets() which does
2175 * need a buffering BIO. So during the initial chitchat we do
2176 * push a buffering BIO into the chain that is removed again
2177 * later on to not disturb the rest of the s_client operation.
2178 */
2179 int foundit = 0;
2180 BIO *fbio = BIO_new(BIO_f_buffer());
2181
2182 if (fbio == NULL) {
2183 BIO_printf(bio_err, "Unable to create BIO\n");
2184 goto shut;
2185 }
2186 BIO_push(fbio, sbio);
2187 /* Wait for multi-line response to end from LMTP or SMTP */
2188 do {
2189 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2190 } while (mbuf_len > 3 && mbuf[3] == '-');
2191 if (protohost == NULL)
2192 protohost = "mail.example.com";
2193 if (starttls_proto == (int)PROTO_LMTP)
2194 BIO_printf(fbio, "LHLO %s\r\n", protohost);
2195 else
2196 BIO_printf(fbio, "EHLO %s\r\n", protohost);
2197 (void)BIO_flush(fbio);
2198 /*
2199 * Wait for multi-line response to end LHLO LMTP or EHLO SMTP
2200 * response.
2201 */
2202 do {
2203 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2204 if (strstr(mbuf, "STARTTLS"))
2205 foundit = 1;
2206 } while (mbuf_len > 3 && mbuf[3] == '-');
2207 (void)BIO_flush(fbio);
2208 BIO_pop(fbio);
2209 BIO_free(fbio);
2210 if (!foundit)
2211 BIO_printf(bio_err,
2212 "Didn't find STARTTLS in server response,"
2213 " trying anyway...\n");
2214 BIO_printf(sbio, "STARTTLS\r\n");
2215 BIO_read(sbio, sbuf, BUFSIZZ);
2216 }
2217 break;
2218 case PROTO_POP3:
2219 {
2220 BIO_read(sbio, mbuf, BUFSIZZ);
2221 BIO_printf(sbio, "STLS\r\n");
2222 mbuf_len = BIO_read(sbio, sbuf, BUFSIZZ);
2223 if (mbuf_len < 0) {
2224 BIO_printf(bio_err, "BIO_read failed\n");
2225 goto end;
2226 }
2227 }
2228 break;
2229 case PROTO_IMAP:
2230 {
2231 int foundit = 0;
2232 BIO *fbio = BIO_new(BIO_f_buffer());
2233
2234 if (fbio == NULL) {
2235 BIO_printf(bio_err, "Unable to create BIO\n");
2236 goto shut;
2237 }
2238 BIO_push(fbio, sbio);
2239 BIO_gets(fbio, mbuf, BUFSIZZ);
2240 /* STARTTLS command requires CAPABILITY... */
2241 BIO_printf(fbio, ". CAPABILITY\r\n");
2242 (void)BIO_flush(fbio);
2243 /* wait for multi-line CAPABILITY response */
2244 do {
2245 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2246 if (strstr(mbuf, "STARTTLS"))
2247 foundit = 1;
2248 }
2249 while (mbuf_len > 3 && mbuf[0] != '.');
2250 (void)BIO_flush(fbio);
2251 BIO_pop(fbio);
2252 BIO_free(fbio);
2253 if (!foundit)
2254 BIO_printf(bio_err,
2255 "Didn't find STARTTLS in server response,"
2256 " trying anyway...\n");
2257 BIO_printf(sbio, ". STARTTLS\r\n");
2258 BIO_read(sbio, sbuf, BUFSIZZ);
2259 }
2260 break;
2261 case PROTO_FTP:
2262 {
2263 BIO *fbio = BIO_new(BIO_f_buffer());
2264
2265 if (fbio == NULL) {
2266 BIO_printf(bio_err, "Unable to create BIO\n");
2267 goto shut;
2268 }
2269 BIO_push(fbio, sbio);
2270 /* wait for multi-line response to end from FTP */
2271 do {
2272 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2273 }
2274 while (mbuf_len > 3 && (!isdigit((unsigned char)mbuf[0]) || !isdigit((unsigned char)mbuf[1]) || !isdigit((unsigned char)mbuf[2]) || mbuf[3] != ' '));
2275 (void)BIO_flush(fbio);
2276 BIO_pop(fbio);
2277 BIO_free(fbio);
2278 BIO_printf(sbio, "AUTH TLS\r\n");
2279 BIO_read(sbio, sbuf, BUFSIZZ);
2280 }
2281 break;
2282 case PROTO_XMPP:
2283 case PROTO_XMPP_SERVER:
2284 {
2285 int seen = 0;
2286 BIO_printf(sbio, "<stream:stream "
2287 "xmlns:stream='http://etherx.jabber.org/streams' "
2288 "xmlns='jabber:%s' to='%s' version='1.0'>",
2289 starttls_proto == PROTO_XMPP ? "client" : "server",
2290 protohost ? protohost : host);
2291 seen = BIO_read(sbio, mbuf, BUFSIZZ);
2292 if (seen < 0) {
2293 BIO_printf(bio_err, "BIO_read failed\n");
2294 goto end;
2295 }
2296 mbuf[seen] = '\0';
2297 while (!strstr
2298 (mbuf, "<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'")
2299 && !strstr(mbuf,
2300 "<starttls xmlns=\"urn:ietf:params:xml:ns:xmpp-tls\""))
2301 {
2302 seen = BIO_read(sbio, mbuf, BUFSIZZ);
2303
2304 if (seen <= 0)
2305 goto shut;
2306
2307 mbuf[seen] = '\0';
2308 }
2309 BIO_printf(sbio,
2310 "<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'/>");
2311 seen = BIO_read(sbio, sbuf, BUFSIZZ);
2312 if (seen < 0) {
2313 BIO_printf(bio_err, "BIO_read failed\n");
2314 goto shut;
2315 }
2316 sbuf[seen] = '\0';
2317 if (!strstr(sbuf, "<proceed"))
2318 goto shut;
2319 mbuf[0] = '\0';
2320 }
2321 break;
2322 case PROTO_TELNET:
2323 {
2324 static const unsigned char tls_do[] = {
2325 /* IAC DO START_TLS */
2326 255, 253, 46
2327 };
2328 static const unsigned char tls_will[] = {
2329 /* IAC WILL START_TLS */
2330 255, 251, 46
2331 };
2332 static const unsigned char tls_follows[] = {
2333 /* IAC SB START_TLS FOLLOWS IAC SE */
2334 255, 250, 46, 1, 255, 240
2335 };
2336 int bytes;
2337
2338 /* Telnet server should demand we issue START_TLS */
2339 bytes = BIO_read(sbio, mbuf, BUFSIZZ);
2340 if (bytes != 3 || memcmp(mbuf, tls_do, 3) != 0)
2341 goto shut;
2342 /* Agree to issue START_TLS and send the FOLLOWS sub-command */
2343 BIO_write(sbio, tls_will, 3);
2344 BIO_write(sbio, tls_follows, 6);
2345 (void)BIO_flush(sbio);
2346 /* Telnet server also sent the FOLLOWS sub-command */
2347 bytes = BIO_read(sbio, mbuf, BUFSIZZ);
2348 if (bytes != 6 || memcmp(mbuf, tls_follows, 6) != 0)
2349 goto shut;
2350 }
2351 break;
2352 case PROTO_IRC:
2353 {
2354 int numeric;
2355 BIO *fbio = BIO_new(BIO_f_buffer());
2356
2357 if (fbio == NULL) {
2358 BIO_printf(bio_err, "Unable to create BIO\n");
2359 goto end;
2360 }
2361 BIO_push(fbio, sbio);
2362 BIO_printf(fbio, "STARTTLS\r\n");
2363 (void)BIO_flush(fbio);
2364 width = SSL_get_fd(con) + 1;
2365
2366 do {
2367 numeric = 0;
2368
2369 FD_ZERO(&readfds);
2370 openssl_fdset(SSL_get_fd(con), &readfds);
2371 timeout.tv_sec = S_CLIENT_IRC_READ_TIMEOUT;
2372 timeout.tv_usec = 0;
2373 /*
2374 * If the IRCd doesn't respond within
2375 * S_CLIENT_IRC_READ_TIMEOUT seconds, assume
2376 * it doesn't support STARTTLS. Many IRCds
2377 * will not give _any_ sort of response to a
2378 * STARTTLS command when it's not supported.
2379 */
2380 if (!BIO_get_buffer_num_lines(fbio)
2381 && !BIO_pending(fbio)
2382 && !BIO_pending(sbio)
2383 && select(width, (void *)&readfds, NULL, NULL,
2384 &timeout) < 1) {
2385 BIO_printf(bio_err,
2386 "Timeout waiting for response (%d seconds).\n",
2387 S_CLIENT_IRC_READ_TIMEOUT);
2388 break;
2389 }
2390
2391 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2392 if (mbuf_len < 1 || sscanf(mbuf, "%*s %d", &numeric) != 1)
2393 break;
2394 /* :example.net 451 STARTTLS :You have not registered */
2395 /* :example.net 421 STARTTLS :Unknown command */
2396 if ((numeric == 451 || numeric == 421)
2397 && strstr(mbuf, "STARTTLS") != NULL) {
2398 BIO_printf(bio_err, "STARTTLS not supported: %s", mbuf);
2399 break;
2400 }
2401 if (numeric == 691) {
2402 BIO_printf(bio_err, "STARTTLS negotiation failed: ");
2403 ERR_print_errors(bio_err);
2404 break;
2405 }
2406 } while (numeric != 670);
2407
2408 (void)BIO_flush(fbio);
2409 BIO_pop(fbio);
2410 BIO_free(fbio);
2411 if (numeric != 670) {
2412 BIO_printf(bio_err, "Server does not support STARTTLS.\n");
2413 ret = 1;
2414 goto shut;
2415 }
2416 }
2417 break;
2418 case PROTO_MYSQL:
2419 {
2420 /* SSL request packet */
2421 static const unsigned char ssl_req[] = {
2422 /* payload_length, sequence_id */
2423 0x20, 0x00, 0x00, 0x01,
2424 /* payload */
2425 /* capability flags, CLIENT_SSL always set */
2426 0x85, 0xae, 0x7f, 0x00,
2427 /* max-packet size */
2428 0x00, 0x00, 0x00, 0x01,
2429 /* character set */
2430 0x21,
2431 /* string[23] reserved (all [0]) */
2432 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
2433 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
2434 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
2435 };
2436 int bytes = 0;
2437 int ssl_flg = 0x800;
2438 int pos;
2439 const unsigned char *packet = (const unsigned char *)sbuf;
2440
2441 /* Receiving Initial Handshake packet. */
2442 bytes = BIO_read(sbio, (void *)packet, BUFSIZZ);
2443 if (bytes < 0) {
2444 BIO_printf(bio_err, "BIO_read failed\n");
2445 goto shut;
2446 /* Packet length[3], Packet number[1] + minimum payload[17] */
2447 } else if (bytes < 21) {
2448 BIO_printf(bio_err, "MySQL packet too short.\n");
2449 goto shut;
2450 } else if (bytes != (4 + packet[0] +
2451 (packet[1] << 8) +
2452 (packet[2] << 16))) {
2453 BIO_printf(bio_err, "MySQL packet length does not match.\n");
2454 goto shut;
2455 /* protocol version[1] */
2456 } else if (packet[4] != 0xA) {
2457 BIO_printf(bio_err,
2458 "Only MySQL protocol version 10 is supported.\n");
2459 goto shut;
2460 }
2461
2462 pos = 5;
2463 /* server version[string+NULL] */
2464 for (;;) {
2465 if (pos >= bytes) {
2466 BIO_printf(bio_err, "Cannot confirm server version. ");
2467 goto shut;
2468 } else if (packet[pos++] == '\0') {
2469 break;
2470 }
2471 }
2472
2473 /* make sure we have at least 15 bytes left in the packet */
2474 if (pos + 15 > bytes) {
2475 BIO_printf(bio_err,
2476 "MySQL server handshake packet is broken.\n");
2477 goto shut;
2478 }
2479
2480 pos += 12; /* skip over conn id[4] + SALT[8] */
2481 if (packet[pos++] != '\0') { /* verify filler */
2482 BIO_printf(bio_err,
2483 "MySQL packet is broken.\n");
2484 goto shut;
2485 }
2486
2487 /* capability flags[2] */
2488 if (!((packet[pos] + (packet[pos + 1] << 8)) & ssl_flg)) {
2489 BIO_printf(bio_err, "MySQL server does not support SSL.\n");
2490 goto shut;
2491 }
2492
2493 /* Sending SSL Handshake packet. */
2494 BIO_write(sbio, ssl_req, sizeof(ssl_req));
2495 (void)BIO_flush(sbio);
2496 }
2497 break;
2498 case PROTO_POSTGRES:
2499 {
2500 static const unsigned char ssl_request[] = {
2501 /* Length SSLRequest */
2502 0, 0, 0, 8, 4, 210, 22, 47
2503 };
2504 int bytes;
2505
2506 /* Send SSLRequest packet */
2507 BIO_write(sbio, ssl_request, 8);
2508 (void)BIO_flush(sbio);
2509
2510 /* Reply will be a single S if SSL is enabled */
2511 bytes = BIO_read(sbio, sbuf, BUFSIZZ);
2512 if (bytes != 1 || sbuf[0] != 'S')
2513 goto shut;
2514 }
2515 break;
2516 case PROTO_NNTP:
2517 {
2518 int foundit = 0;
2519 BIO *fbio = BIO_new(BIO_f_buffer());
2520
2521 if (fbio == NULL) {
2522 BIO_printf(bio_err, "Unable to create BIO\n");
2523 goto end;
2524 }
2525 BIO_push(fbio, sbio);
2526 BIO_gets(fbio, mbuf, BUFSIZZ);
2527 /* STARTTLS command requires CAPABILITIES... */
2528 BIO_printf(fbio, "CAPABILITIES\r\n");
2529 (void)BIO_flush(fbio);
2530 BIO_gets(fbio, mbuf, BUFSIZZ);
2531 /* no point in trying to parse the CAPABILITIES response if there is none */
2532 if (strstr(mbuf, "101") != NULL) {
2533 /* wait for multi-line CAPABILITIES response */
2534 do {
2535 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2536 if (strstr(mbuf, "STARTTLS"))
2537 foundit = 1;
2538 } while (mbuf_len > 1 && mbuf[0] != '.');
2539 }
2540 (void)BIO_flush(fbio);
2541 BIO_pop(fbio);
2542 BIO_free(fbio);
2543 if (!foundit)
2544 BIO_printf(bio_err,
2545 "Didn't find STARTTLS in server response,"
2546 " trying anyway...\n");
2547 BIO_printf(sbio, "STARTTLS\r\n");
2548 mbuf_len = BIO_read(sbio, mbuf, BUFSIZZ);
2549 if (mbuf_len < 0) {
2550 BIO_printf(bio_err, "BIO_read failed\n");
2551 goto end;
2552 }
2553 mbuf[mbuf_len] = '\0';
2554 if (strstr(mbuf, "382") == NULL) {
2555 BIO_printf(bio_err, "STARTTLS failed: %s", mbuf);
2556 goto shut;
2557 }
2558 }
2559 break;
2560 case PROTO_SIEVE:
2561 {
2562 int foundit = 0;
2563 BIO *fbio = BIO_new(BIO_f_buffer());
2564
2565 if (fbio == NULL) {
2566 BIO_printf(bio_err, "Unable to create BIO\n");
2567 goto end;
2568 }
2569 BIO_push(fbio, sbio);
2570 /* wait for multi-line response to end from Sieve */
2571 do {
2572 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2573 /*
2574 * According to RFC 5804 § 1.7, capability
2575 * is case-insensitive, make it uppercase
2576 */
2577 if (mbuf_len > 1 && mbuf[0] == '"') {
2578 make_uppercase(mbuf);
2579 if (strncmp(mbuf, "\"STARTTLS\"", 10) == 0)
2580 foundit = 1;
2581 }
2582 } while (mbuf_len > 1 && mbuf[0] == '"');
2583 (void)BIO_flush(fbio);
2584 BIO_pop(fbio);
2585 BIO_free(fbio);
2586 if (!foundit)
2587 BIO_printf(bio_err,
2588 "Didn't find STARTTLS in server response,"
2589 " trying anyway...\n");
2590 BIO_printf(sbio, "STARTTLS\r\n");
2591 mbuf_len = BIO_read(sbio, mbuf, BUFSIZZ);
2592 if (mbuf_len < 0) {
2593 BIO_printf(bio_err, "BIO_read failed\n");
2594 goto end;
2595 }
2596 mbuf[mbuf_len] = '\0';
2597 if (mbuf_len < 2) {
2598 BIO_printf(bio_err, "STARTTLS failed: %s", mbuf);
2599 goto shut;
2600 }
2601 /*
2602 * According to RFC 5804 § 2.2, response codes are case-
2603 * insensitive, make it uppercase but preserve the response.
2604 */
2605 strncpy(sbuf, mbuf, 2);
2606 make_uppercase(sbuf);
2607 if (strncmp(sbuf, "OK", 2) != 0) {
2608 BIO_printf(bio_err, "STARTTLS not supported: %s", mbuf);
2609 goto shut;
2610 }
2611 }
2612 break;
2613 case PROTO_LDAP:
2614 {
2615 /* StartTLS Operation according to RFC 4511 */
2616 static char ldap_tls_genconf[] = "asn1=SEQUENCE:LDAPMessage\n"
2617 "[LDAPMessage]\n"
2618 "messageID=INTEGER:1\n"
2619 "extendedReq=EXPLICIT:23A,IMPLICIT:0C,"
2620 "FORMAT:ASCII,OCT:1.3.6.1.4.1.1466.20037\n";
2621 long errline = -1;
2622 char *genstr = NULL;
2623 int result = -1;
2624 ASN1_TYPE *atyp = NULL;
2625 BIO *ldapbio = BIO_new(BIO_s_mem());
2626 CONF *cnf = NCONF_new(NULL);
2627
2628 if (ldapbio == NULL || cnf == NULL) {
2629 BIO_free(ldapbio);
2630 NCONF_free(cnf);
2631 goto end;
2632 }
2633 BIO_puts(ldapbio, ldap_tls_genconf);
2634 if (NCONF_load_bio(cnf, ldapbio, &errline) <= 0) {
2635 BIO_free(ldapbio);
2636 NCONF_free(cnf);
2637 if (errline <= 0) {
2638 BIO_printf(bio_err, "NCONF_load_bio failed\n");
2639 goto end;
2640 } else {
2641 BIO_printf(bio_err, "Error on line %ld\n", errline);
2642 goto end;
2643 }
2644 }
2645 BIO_free(ldapbio);
2646 genstr = NCONF_get_string(cnf, "default", "asn1");
2647 if (genstr == NULL) {
2648 NCONF_free(cnf);
2649 BIO_printf(bio_err, "NCONF_get_string failed\n");
2650 goto end;
2651 }
2652 atyp = ASN1_generate_nconf(genstr, cnf);
2653 if (atyp == NULL) {
2654 NCONF_free(cnf);
2655 BIO_printf(bio_err, "ASN1_generate_nconf failed\n");
2656 goto end;
2657 }
2658 NCONF_free(cnf);
2659
2660 /* Send SSLRequest packet */
2661 BIO_write(sbio, atyp->value.sequence->data,
2662 atyp->value.sequence->length);
2663 (void)BIO_flush(sbio);
2664 ASN1_TYPE_free(atyp);
2665
2666 mbuf_len = BIO_read(sbio, mbuf, BUFSIZZ);
2667 if (mbuf_len < 0) {
2668 BIO_printf(bio_err, "BIO_read failed\n");
2669 goto end;
2670 }
2671 result = ldap_ExtendedResponse_parse(mbuf, mbuf_len);
2672 if (result < 0) {
2673 BIO_printf(bio_err, "ldap_ExtendedResponse_parse failed\n");
2674 goto shut;
2675 } else if (result > 0) {
2676 BIO_printf(bio_err, "STARTTLS failed, LDAP Result Code: %i\n",
2677 result);
2678 goto shut;
2679 }
2680 mbuf_len = 0;
2681 }
2682 break;
2683 }
2684
2685 if (early_data_file != NULL
2686 && ((SSL_get0_session(con) != NULL
2687 && SSL_SESSION_get_max_early_data(SSL_get0_session(con)) > 0)
2688 || (psksess != NULL
2689 && SSL_SESSION_get_max_early_data(psksess) > 0))) {
2690 BIO *edfile = BIO_new_file(early_data_file, "r");
2691 size_t readbytes, writtenbytes;
2692 int finish = 0;
2693
2694 if (edfile == NULL) {
2695 BIO_printf(bio_err, "Cannot open early data file\n");
2696 goto shut;
2697 }
2698
2699 while (!finish) {
2700 if (!BIO_read_ex(edfile, cbuf, BUFSIZZ, &readbytes))
2701 finish = 1;
2702
2703 while (!SSL_write_early_data(con, cbuf, readbytes, &writtenbytes)) {
2704 switch (SSL_get_error(con, 0)) {
2705 case SSL_ERROR_WANT_WRITE:
2706 case SSL_ERROR_WANT_ASYNC:
2707 case SSL_ERROR_WANT_READ:
2708 /* Just keep trying - busy waiting */
2709 continue;
2710 default:
2711 BIO_printf(bio_err, "Error writing early data\n");
2712 BIO_free(edfile);
2713 ERR_print_errors(bio_err);
2714 goto shut;
2715 }
2716 }
2717 }
2718
2719 BIO_free(edfile);
2720 }
2721
2722 for (;;) {
2723 FD_ZERO(&readfds);
2724 FD_ZERO(&writefds);
2725
2726 if (SSL_is_dtls(con) && DTLSv1_get_timeout(con, &timeout))
2727 timeoutp = &timeout;
2728 else
2729 timeoutp = NULL;
2730
2731 if (!SSL_is_init_finished(con) && SSL_total_renegotiations(con) == 0
2732 && SSL_get_key_update_type(con) == SSL_KEY_UPDATE_NONE) {
2733 in_init = 1;
2734 tty_on = 0;
2735 } else {
2736 tty_on = 1;
2737 if (in_init) {
2738 in_init = 0;
2739 if (c_brief) {
2740 BIO_puts(bio_err, "CONNECTION ESTABLISHED\n");
2741 print_ssl_summary(con);
2742 }
2743
2744 print_stuff(bio_c_out, con, full_log);
2745 if (full_log > 0)
2746 full_log--;
2747
2748 if (starttls_proto) {
2749 BIO_write(bio_err, mbuf, mbuf_len);
2750 /* We don't need to know any more */
2751 if (!reconnect)
2752 starttls_proto = PROTO_OFF;
2753 }
2754
2755 if (reconnect) {
2756 reconnect--;
2757 BIO_printf(bio_c_out,
2758 "drop connection and then reconnect\n");
2759 do_ssl_shutdown(con);
2760 SSL_set_connect_state(con);
2761 BIO_closesocket(SSL_get_fd(con));
2762 goto re_start;
2763 }
2764 }
2765 }
2766
2767 ssl_pending = read_ssl && SSL_has_pending(con);
2768
2769 if (!ssl_pending) {
2770 #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS)
2771 if (tty_on) {
2772 /*
2773 * Note that select() returns when read _would not block_,
2774 * and EOF satisfies that. To avoid a CPU-hogging loop,
2775 * set the flag so we exit.
2776 */
2777 if (read_tty && !at_eof)
2778 openssl_fdset(fileno_stdin(), &readfds);
2779 #if !defined(OPENSSL_SYS_VMS)
2780 if (write_tty)
2781 openssl_fdset(fileno_stdout(), &writefds);
2782 #endif
2783 }
2784 if (read_ssl)
2785 openssl_fdset(SSL_get_fd(con), &readfds);
2786 if (write_ssl)
2787 openssl_fdset(SSL_get_fd(con), &writefds);
2788 #else
2789 if (!tty_on || !write_tty) {
2790 if (read_ssl)
2791 openssl_fdset(SSL_get_fd(con), &readfds);
2792 if (write_ssl)
2793 openssl_fdset(SSL_get_fd(con), &writefds);
2794 }
2795 #endif
2796
2797 /*
2798 * Note: under VMS with SOCKETSHR the second parameter is
2799 * currently of type (int *) whereas under other systems it is
2800 * (void *) if you don't have a cast it will choke the compiler:
2801 * if you do have a cast then you can either go for (int *) or
2802 * (void *).
2803 */
2804 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
2805 /*
2806 * Under Windows/DOS we make the assumption that we can always
2807 * write to the tty: therefore if we need to write to the tty we
2808 * just fall through. Otherwise we timeout the select every
2809 * second and see if there are any keypresses. Note: this is a
2810 * hack, in a proper Windows application we wouldn't do this.
2811 */
2812 i = 0;
2813 if (!write_tty) {
2814 if (read_tty) {
2815 tv.tv_sec = 1;
2816 tv.tv_usec = 0;
2817 i = select(width, (void *)&readfds, (void *)&writefds,
2818 NULL, &tv);
2819 if (!i && (!has_stdin_waiting() || !read_tty))
2820 continue;
2821 } else
2822 i = select(width, (void *)&readfds, (void *)&writefds,
2823 NULL, timeoutp);
2824 }
2825 #else
2826 i = select(width, (void *)&readfds, (void *)&writefds,
2827 NULL, timeoutp);
2828 #endif
2829 if (i < 0) {
2830 BIO_printf(bio_err, "bad select %d\n",
2831 get_last_socket_error());
2832 goto shut;
2833 }
2834 }
2835
2836 if (SSL_is_dtls(con) && DTLSv1_handle_timeout(con) > 0)
2837 BIO_printf(bio_err, "TIMEOUT occurred\n");
2838
2839 if (!ssl_pending && FD_ISSET(SSL_get_fd(con), &writefds)) {
2840 k = SSL_write(con, &(cbuf[cbuf_off]), (unsigned int)cbuf_len);
2841 switch (SSL_get_error(con, k)) {
2842 case SSL_ERROR_NONE:
2843 cbuf_off += k;
2844 cbuf_len -= k;
2845 if (k <= 0)
2846 goto end;
2847 /* we have done a write(con,NULL,0); */
2848 if (cbuf_len <= 0) {
2849 read_tty = 1;
2850 write_ssl = 0;
2851 } else { /* if (cbuf_len > 0) */
2852
2853 read_tty = 0;
2854 write_ssl = 1;
2855 }
2856 break;
2857 case SSL_ERROR_WANT_WRITE:
2858 BIO_printf(bio_c_out, "write W BLOCK\n");
2859 write_ssl = 1;
2860 read_tty = 0;
2861 break;
2862 case SSL_ERROR_WANT_ASYNC:
2863 BIO_printf(bio_c_out, "write A BLOCK\n");
2864 wait_for_async(con);
2865 write_ssl = 1;
2866 read_tty = 0;
2867 break;
2868 case SSL_ERROR_WANT_READ:
2869 BIO_printf(bio_c_out, "write R BLOCK\n");
2870 write_tty = 0;
2871 read_ssl = 1;
2872 write_ssl = 0;
2873 break;
2874 case SSL_ERROR_WANT_X509_LOOKUP:
2875 BIO_printf(bio_c_out, "write X BLOCK\n");
2876 break;
2877 case SSL_ERROR_ZERO_RETURN:
2878 if (cbuf_len != 0) {
2879 BIO_printf(bio_c_out, "shutdown\n");
2880 ret = 0;
2881 goto shut;
2882 } else {
2883 read_tty = 1;
2884 write_ssl = 0;
2885 break;
2886 }
2887
2888 case SSL_ERROR_SYSCALL:
2889 if ((k != 0) || (cbuf_len != 0)) {
2890 BIO_printf(bio_err, "write:errno=%d\n",
2891 get_last_socket_error());
2892 goto shut;
2893 } else {
2894 read_tty = 1;
2895 write_ssl = 0;
2896 }
2897 break;
2898 case SSL_ERROR_WANT_ASYNC_JOB:
2899 /* This shouldn't ever happen in s_client - treat as an error */
2900 case SSL_ERROR_SSL:
2901 ERR_print_errors(bio_err);
2902 goto shut;
2903 }
2904 }
2905 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_VMS)
2906 /* Assume Windows/DOS/BeOS can always write */
2907 else if (!ssl_pending && write_tty)
2908 #else
2909 else if (!ssl_pending && FD_ISSET(fileno_stdout(), &writefds))
2910 #endif
2911 {
2912 #ifdef CHARSET_EBCDIC
2913 ascii2ebcdic(&(sbuf[sbuf_off]), &(sbuf[sbuf_off]), sbuf_len);
2914 #endif
2915 i = raw_write_stdout(&(sbuf[sbuf_off]), sbuf_len);
2916
2917 if (i <= 0) {
2918 BIO_printf(bio_c_out, "DONE\n");
2919 ret = 0;
2920 goto shut;
2921 }
2922
2923 sbuf_len -= i;
2924 sbuf_off += i;
2925 if (sbuf_len <= 0) {
2926 read_ssl = 1;
2927 write_tty = 0;
2928 }
2929 } else if (ssl_pending || FD_ISSET(SSL_get_fd(con), &readfds)) {
2930 #ifdef RENEG
2931 {
2932 static int iiii;
2933 if (++iiii == 52) {
2934 SSL_renegotiate(con);
2935 iiii = 0;
2936 }
2937 }
2938 #endif
2939 k = SSL_read(con, sbuf, 1024 /* BUFSIZZ */ );
2940
2941 switch (SSL_get_error(con, k)) {
2942 case SSL_ERROR_NONE:
2943 if (k <= 0)
2944 goto end;
2945 sbuf_off = 0;
2946 sbuf_len = k;
2947
2948 read_ssl = 0;
2949 write_tty = 1;
2950 break;
2951 case SSL_ERROR_WANT_ASYNC:
2952 BIO_printf(bio_c_out, "read A BLOCK\n");
2953 wait_for_async(con);
2954 write_tty = 0;
2955 read_ssl = 1;
2956 if ((read_tty == 0) && (write_ssl == 0))
2957 write_ssl = 1;
2958 break;
2959 case SSL_ERROR_WANT_WRITE:
2960 BIO_printf(bio_c_out, "read W BLOCK\n");
2961 write_ssl = 1;
2962 read_tty = 0;
2963 break;
2964 case SSL_ERROR_WANT_READ:
2965 BIO_printf(bio_c_out, "read R BLOCK\n");
2966 write_tty = 0;
2967 read_ssl = 1;
2968 if ((read_tty == 0) && (write_ssl == 0))
2969 write_ssl = 1;
2970 break;
2971 case SSL_ERROR_WANT_X509_LOOKUP:
2972 BIO_printf(bio_c_out, "read X BLOCK\n");
2973 break;
2974 case SSL_ERROR_SYSCALL:
2975 ret = get_last_socket_error();
2976 if (c_brief)
2977 BIO_puts(bio_err, "CONNECTION CLOSED BY SERVER\n");
2978 else
2979 BIO_printf(bio_err, "read:errno=%d\n", ret);
2980 goto shut;
2981 case SSL_ERROR_ZERO_RETURN:
2982 BIO_printf(bio_c_out, "closed\n");
2983 ret = 0;
2984 goto shut;
2985 case SSL_ERROR_WANT_ASYNC_JOB:
2986 /* This shouldn't ever happen in s_client. Treat as an error */
2987 case SSL_ERROR_SSL:
2988 ERR_print_errors(bio_err);
2989 goto shut;
2990 }
2991 }
2992 /* OPENSSL_SYS_MSDOS includes OPENSSL_SYS_WINDOWS */
2993 #if defined(OPENSSL_SYS_MSDOS)
2994 else if (has_stdin_waiting())
2995 #else
2996 else if (FD_ISSET(fileno_stdin(), &readfds))
2997 #endif
2998 {
2999 if (crlf) {
3000 int j, lf_num;
3001
3002 i = raw_read_stdin(cbuf, BUFSIZZ / 2);
3003 lf_num = 0;
3004 /* both loops are skipped when i <= 0 */
3005 for (j = 0; j < i; j++)
3006 if (cbuf[j] == '\n')
3007 lf_num++;
3008 for (j = i - 1; j >= 0; j--) {
3009 cbuf[j + lf_num] = cbuf[j];
3010 if (cbuf[j] == '\n') {
3011 lf_num--;
3012 i++;
3013 cbuf[j + lf_num] = '\r';
3014 }
3015 }
3016 assert(lf_num == 0);
3017 } else
3018 i = raw_read_stdin(cbuf, BUFSIZZ);
3019 #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS)
3020 if (i == 0)
3021 at_eof = 1;
3022 #endif
3023
3024 if ((!c_ign_eof) && ((i <= 0) || (cbuf[0] == 'Q' && cmdletters))) {
3025 BIO_printf(bio_err, "DONE\n");
3026 ret = 0;
3027 goto shut;
3028 }
3029
3030 if ((!c_ign_eof) && (cbuf[0] == 'R' && cmdletters)) {
3031 BIO_printf(bio_err, "RENEGOTIATING\n");
3032 SSL_renegotiate(con);
3033 cbuf_len = 0;
3034 } else if (!c_ign_eof && (cbuf[0] == 'K' || cbuf[0] == 'k' )
3035 && cmdletters) {
3036 BIO_printf(bio_err, "KEYUPDATE\n");
3037 SSL_key_update(con,
3038 cbuf[0] == 'K' ? SSL_KEY_UPDATE_REQUESTED
3039 : SSL_KEY_UPDATE_NOT_REQUESTED);
3040 cbuf_len = 0;
3041 } else {
3042 cbuf_len = i;
3043 cbuf_off = 0;
3044 #ifdef CHARSET_EBCDIC
3045 ebcdic2ascii(cbuf, cbuf, i);
3046 #endif
3047 }
3048
3049 write_ssl = 1;
3050 read_tty = 0;
3051 }
3052 }
3053
3054 shut:
3055 if (in_init)
3056 print_stuff(bio_c_out, con, full_log);
3057 do_ssl_shutdown(con);
3058
3059 /*
3060 * If we ended with an alert being sent, but still with data in the
3061 * network buffer to be read, then calling BIO_closesocket() will
3062 * result in a TCP-RST being sent. On some platforms (notably
3063 * Windows) then this will result in the peer immediately abandoning
3064 * the connection including any buffered alert data before it has
3065 * had a chance to be read. Shutting down the sending side first,
3066 * and then closing the socket sends TCP-FIN first followed by
3067 * TCP-RST. This seems to allow the peer to read the alert data.
3068 */
3069 shutdown(SSL_get_fd(con), 1); /* SHUT_WR */
3070 /*
3071 * We just said we have nothing else to say, but it doesn't mean that
3072 * the other side has nothing. It's even recommended to consume incoming
3073 * data. [In testing context this ensures that alerts are passed on...]
3074 */
3075 timeout.tv_sec = 0;
3076 timeout.tv_usec = 500000; /* some extreme round-trip */
3077 do {
3078 FD_ZERO(&readfds);
3079 openssl_fdset(sock, &readfds);
3080 } while (select(sock + 1, &readfds, NULL, NULL, &timeout) > 0
3081 && BIO_read(sbio, sbuf, BUFSIZZ) > 0);
3082
3083 BIO_closesocket(SSL_get_fd(con));
3084 end:
3085 if (con != NULL) {
3086 if (prexit != 0)
3087 print_stuff(bio_c_out, con, 1);
3088 SSL_free(con);
3089 }
3090 SSL_SESSION_free(psksess);
3091 #if !defined(OPENSSL_NO_NEXTPROTONEG)
3092 OPENSSL_free(next_proto.data);
3093 #endif
3094 SSL_CTX_free(ctx);
3095 set_keylog_file(NULL, NULL);
3096 X509_free(cert);
3097 sk_X509_CRL_pop_free(crls, X509_CRL_free);
3098 EVP_PKEY_free(key);
3099 sk_X509_pop_free(chain, X509_free);
3100 OPENSSL_free(pass);
3101 #ifndef OPENSSL_NO_SRP
3102 OPENSSL_free(srp_arg.srppassin);
3103 #endif
3104 OPENSSL_free(sname_alloc);
3105 OPENSSL_free(connectstr);
3106 OPENSSL_free(bindstr);
3107 OPENSSL_free(bindhost);
3108 OPENSSL_free(bindport);
3109 OPENSSL_free(host);
3110 OPENSSL_free(port);
3111 OPENSSL_free(thost);
3112 OPENSSL_free(tport);
3113 X509_VERIFY_PARAM_free(vpm);
3114 ssl_excert_free(exc);
3115 sk_OPENSSL_STRING_free(ssl_args);
3116 sk_OPENSSL_STRING_free(dane_tlsa_rrset);
3117 SSL_CONF_CTX_free(cctx);
3118 OPENSSL_clear_free(cbuf, BUFSIZZ);
3119 OPENSSL_clear_free(sbuf, BUFSIZZ);
3120 OPENSSL_clear_free(mbuf, BUFSIZZ);
3121 clear_free(proxypass);
3122 release_engine(e);
3123 BIO_free(bio_c_out);
3124 bio_c_out = NULL;
3125 BIO_free(bio_c_msg);
3126 bio_c_msg = NULL;
3127 return ret;
3128 }
3129
print_stuff(BIO * bio,SSL * s,int full)3130 static void print_stuff(BIO *bio, SSL *s, int full)
3131 {
3132 X509 *peer = NULL;
3133 STACK_OF(X509) *sk;
3134 const SSL_CIPHER *c;
3135 EVP_PKEY *public_key;
3136 int i, istls13 = (SSL_version(s) == TLS1_3_VERSION);
3137 long verify_result;
3138 #ifndef OPENSSL_NO_COMP
3139 const COMP_METHOD *comp, *expansion;
3140 #endif
3141 unsigned char *exportedkeymat;
3142 #ifndef OPENSSL_NO_CT
3143 const SSL_CTX *ctx = SSL_get_SSL_CTX(s);
3144 #endif
3145
3146 if (full) {
3147 int got_a_chain = 0;
3148
3149 sk = SSL_get_peer_cert_chain(s);
3150 if (sk != NULL) {
3151 got_a_chain = 1;
3152
3153 BIO_printf(bio, "---\nCertificate chain\n");
3154 for (i = 0; i < sk_X509_num(sk); i++) {
3155 BIO_printf(bio, "%2d s:", i);
3156 X509_NAME_print_ex(bio, X509_get_subject_name(sk_X509_value(sk, i)), 0, get_nameopt());
3157 BIO_puts(bio, "\n");
3158 BIO_printf(bio, " i:");
3159 X509_NAME_print_ex(bio, X509_get_issuer_name(sk_X509_value(sk, i)), 0, get_nameopt());
3160 BIO_puts(bio, "\n");
3161 public_key = X509_get_pubkey(sk_X509_value(sk, i));
3162 if (public_key != NULL) {
3163 BIO_printf(bio, " a:PKEY: %s, %d (bit); sigalg: %s\n",
3164 OBJ_nid2sn(EVP_PKEY_get_base_id(public_key)),
3165 EVP_PKEY_get_bits(public_key),
3166 OBJ_nid2sn(X509_get_signature_nid(sk_X509_value(sk, i))));
3167 EVP_PKEY_free(public_key);
3168 }
3169 BIO_printf(bio, " v:NotBefore: ");
3170 ASN1_TIME_print(bio, X509_get0_notBefore(sk_X509_value(sk, i)));
3171 BIO_printf(bio, "; NotAfter: ");
3172 ASN1_TIME_print(bio, X509_get0_notAfter(sk_X509_value(sk, i)));
3173 BIO_puts(bio, "\n");
3174 if (c_showcerts)
3175 PEM_write_bio_X509(bio, sk_X509_value(sk, i));
3176 }
3177 }
3178
3179 BIO_printf(bio, "---\n");
3180 peer = SSL_get0_peer_certificate(s);
3181 if (peer != NULL) {
3182 BIO_printf(bio, "Server certificate\n");
3183
3184 /* Redundant if we showed the whole chain */
3185 if (!(c_showcerts && got_a_chain))
3186 PEM_write_bio_X509(bio, peer);
3187 dump_cert_text(bio, peer);
3188 } else {
3189 BIO_printf(bio, "no peer certificate available\n");
3190 }
3191 print_ca_names(bio, s);
3192
3193 ssl_print_sigalgs(bio, s);
3194 ssl_print_tmp_key(bio, s);
3195
3196 #ifndef OPENSSL_NO_CT
3197 /*
3198 * When the SSL session is anonymous, or resumed via an abbreviated
3199 * handshake, no SCTs are provided as part of the handshake. While in
3200 * a resumed session SCTs may be present in the session's certificate,
3201 * no callbacks are invoked to revalidate these, and in any case that
3202 * set of SCTs may be incomplete. Thus it makes little sense to
3203 * attempt to display SCTs from a resumed session's certificate, and of
3204 * course none are associated with an anonymous peer.
3205 */
3206 if (peer != NULL && !SSL_session_reused(s) && SSL_ct_is_enabled(s)) {
3207 const STACK_OF(SCT) *scts = SSL_get0_peer_scts(s);
3208 int sct_count = scts != NULL ? sk_SCT_num(scts) : 0;
3209
3210 BIO_printf(bio, "---\nSCTs present (%i)\n", sct_count);
3211 if (sct_count > 0) {
3212 const CTLOG_STORE *log_store = SSL_CTX_get0_ctlog_store(ctx);
3213
3214 BIO_printf(bio, "---\n");
3215 for (i = 0; i < sct_count; ++i) {
3216 SCT *sct = sk_SCT_value(scts, i);
3217
3218 BIO_printf(bio, "SCT validation status: %s\n",
3219 SCT_validation_status_string(sct));
3220 SCT_print(sct, bio, 0, log_store);
3221 if (i < sct_count - 1)
3222 BIO_printf(bio, "\n---\n");
3223 }
3224 BIO_printf(bio, "\n");
3225 }
3226 }
3227 #endif
3228
3229 BIO_printf(bio,
3230 "---\nSSL handshake has read %ju bytes "
3231 "and written %ju bytes\n",
3232 BIO_number_read(SSL_get_rbio(s)),
3233 BIO_number_written(SSL_get_wbio(s)));
3234 }
3235 print_verify_detail(s, bio);
3236 BIO_printf(bio, (SSL_session_reused(s) ? "---\nReused, " : "---\nNew, "));
3237 c = SSL_get_current_cipher(s);
3238 BIO_printf(bio, "%s, Cipher is %s\n",
3239 SSL_CIPHER_get_version(c), SSL_CIPHER_get_name(c));
3240 if (peer != NULL) {
3241 EVP_PKEY *pktmp;
3242
3243 pktmp = X509_get0_pubkey(peer);
3244 BIO_printf(bio, "Server public key is %d bit\n",
3245 EVP_PKEY_get_bits(pktmp));
3246 }
3247 BIO_printf(bio, "Secure Renegotiation IS%s supported\n",
3248 SSL_get_secure_renegotiation_support(s) ? "" : " NOT");
3249 #ifndef OPENSSL_NO_COMP
3250 comp = SSL_get_current_compression(s);
3251 expansion = SSL_get_current_expansion(s);
3252 BIO_printf(bio, "Compression: %s\n",
3253 comp ? SSL_COMP_get_name(comp) : "NONE");
3254 BIO_printf(bio, "Expansion: %s\n",
3255 expansion ? SSL_COMP_get_name(expansion) : "NONE");
3256 #endif
3257 #ifndef OPENSSL_NO_KTLS
3258 if (BIO_get_ktls_send(SSL_get_wbio(s)))
3259 BIO_printf(bio_err, "Using Kernel TLS for sending\n");
3260 if (BIO_get_ktls_recv(SSL_get_rbio(s)))
3261 BIO_printf(bio_err, "Using Kernel TLS for receiving\n");
3262 #endif
3263
3264 if (OSSL_TRACE_ENABLED(TLS)) {
3265 /* Print out local port of connection: useful for debugging */
3266 int sock;
3267 union BIO_sock_info_u info;
3268
3269 sock = SSL_get_fd(s);
3270 if ((info.addr = BIO_ADDR_new()) != NULL
3271 && BIO_sock_info(sock, BIO_SOCK_INFO_ADDRESS, &info)) {
3272 BIO_printf(bio_c_out, "LOCAL PORT is %u\n",
3273 ntohs(BIO_ADDR_rawport(info.addr)));
3274 }
3275 BIO_ADDR_free(info.addr);
3276 }
3277
3278 #if !defined(OPENSSL_NO_NEXTPROTONEG)
3279 if (next_proto.status != -1) {
3280 const unsigned char *proto;
3281 unsigned int proto_len;
3282 SSL_get0_next_proto_negotiated(s, &proto, &proto_len);
3283 BIO_printf(bio, "Next protocol: (%d) ", next_proto.status);
3284 BIO_write(bio, proto, proto_len);
3285 BIO_write(bio, "\n", 1);
3286 }
3287 #endif
3288 {
3289 const unsigned char *proto;
3290 unsigned int proto_len;
3291 SSL_get0_alpn_selected(s, &proto, &proto_len);
3292 if (proto_len > 0) {
3293 BIO_printf(bio, "ALPN protocol: ");
3294 BIO_write(bio, proto, proto_len);
3295 BIO_write(bio, "\n", 1);
3296 } else
3297 BIO_printf(bio, "No ALPN negotiated\n");
3298 }
3299
3300 #ifndef OPENSSL_NO_SRTP
3301 {
3302 SRTP_PROTECTION_PROFILE *srtp_profile =
3303 SSL_get_selected_srtp_profile(s);
3304
3305 if (srtp_profile)
3306 BIO_printf(bio, "SRTP Extension negotiated, profile=%s\n",
3307 srtp_profile->name);
3308 }
3309 #endif
3310
3311 if (istls13) {
3312 switch (SSL_get_early_data_status(s)) {
3313 case SSL_EARLY_DATA_NOT_SENT:
3314 BIO_printf(bio, "Early data was not sent\n");
3315 break;
3316
3317 case SSL_EARLY_DATA_REJECTED:
3318 BIO_printf(bio, "Early data was rejected\n");
3319 break;
3320
3321 case SSL_EARLY_DATA_ACCEPTED:
3322 BIO_printf(bio, "Early data was accepted\n");
3323 break;
3324
3325 }
3326
3327 /*
3328 * We also print the verify results when we dump session information,
3329 * but in TLSv1.3 we may not get that right away (or at all) depending
3330 * on when we get a NewSessionTicket. Therefore we print it now as well.
3331 */
3332 verify_result = SSL_get_verify_result(s);
3333 BIO_printf(bio, "Verify return code: %ld (%s)\n", verify_result,
3334 X509_verify_cert_error_string(verify_result));
3335 } else {
3336 /* In TLSv1.3 we do this on arrival of a NewSessionTicket */
3337 SSL_SESSION_print(bio, SSL_get_session(s));
3338 }
3339
3340 if (SSL_get_session(s) != NULL && keymatexportlabel != NULL) {
3341 BIO_printf(bio, "Keying material exporter:\n");
3342 BIO_printf(bio, " Label: '%s'\n", keymatexportlabel);
3343 BIO_printf(bio, " Length: %i bytes\n", keymatexportlen);
3344 exportedkeymat = app_malloc(keymatexportlen, "export key");
3345 if (SSL_export_keying_material(s, exportedkeymat,
3346 keymatexportlen,
3347 keymatexportlabel,
3348 strlen(keymatexportlabel),
3349 NULL, 0, 0) <= 0) {
3350 BIO_printf(bio, " Error\n");
3351 } else {
3352 BIO_printf(bio, " Keying material: ");
3353 for (i = 0; i < keymatexportlen; i++)
3354 BIO_printf(bio, "%02X", exportedkeymat[i]);
3355 BIO_printf(bio, "\n");
3356 }
3357 OPENSSL_free(exportedkeymat);
3358 }
3359 BIO_printf(bio, "---\n");
3360 /* flush, or debugging output gets mixed with http response */
3361 (void)BIO_flush(bio);
3362 }
3363
3364 # ifndef OPENSSL_NO_OCSP
ocsp_resp_cb(SSL * s,void * arg)3365 static int ocsp_resp_cb(SSL *s, void *arg)
3366 {
3367 const unsigned char *p;
3368 int len;
3369 OCSP_RESPONSE *rsp;
3370 len = SSL_get_tlsext_status_ocsp_resp(s, &p);
3371 BIO_puts(arg, "OCSP response: ");
3372 if (p == NULL) {
3373 BIO_puts(arg, "no response sent\n");
3374 return 1;
3375 }
3376 rsp = d2i_OCSP_RESPONSE(NULL, &p, len);
3377 if (rsp == NULL) {
3378 BIO_puts(arg, "response parse error\n");
3379 BIO_dump_indent(arg, (char *)p, len, 4);
3380 return 0;
3381 }
3382 BIO_puts(arg, "\n======================================\n");
3383 OCSP_RESPONSE_print(arg, rsp, 0);
3384 BIO_puts(arg, "======================================\n");
3385 OCSP_RESPONSE_free(rsp);
3386 return 1;
3387 }
3388 # endif
3389
ldap_ExtendedResponse_parse(const char * buf,long rem)3390 static int ldap_ExtendedResponse_parse(const char *buf, long rem)
3391 {
3392 const unsigned char *cur, *end;
3393 long len;
3394 int tag, xclass, inf, ret = -1;
3395
3396 cur = (const unsigned char *)buf;
3397 end = cur + rem;
3398
3399 /*
3400 * From RFC 4511:
3401 *
3402 * LDAPMessage ::= SEQUENCE {
3403 * messageID MessageID,
3404 * protocolOp CHOICE {
3405 * ...
3406 * extendedResp ExtendedResponse,
3407 * ... },
3408 * controls [0] Controls OPTIONAL }
3409 *
3410 * ExtendedResponse ::= [APPLICATION 24] SEQUENCE {
3411 * COMPONENTS OF LDAPResult,
3412 * responseName [10] LDAPOID OPTIONAL,
3413 * responseValue [11] OCTET STRING OPTIONAL }
3414 *
3415 * LDAPResult ::= SEQUENCE {
3416 * resultCode ENUMERATED {
3417 * success (0),
3418 * ...
3419 * other (80),
3420 * ... },
3421 * matchedDN LDAPDN,
3422 * diagnosticMessage LDAPString,
3423 * referral [3] Referral OPTIONAL }
3424 */
3425
3426 /* pull SEQUENCE */
3427 inf = ASN1_get_object(&cur, &len, &tag, &xclass, rem);
3428 if (inf != V_ASN1_CONSTRUCTED || tag != V_ASN1_SEQUENCE ||
3429 (rem = end - cur, len > rem)) {
3430 BIO_printf(bio_err, "Unexpected LDAP response\n");
3431 goto end;
3432 }
3433
3434 rem = len; /* ensure that we don't overstep the SEQUENCE */
3435
3436 /* pull MessageID */
3437 inf = ASN1_get_object(&cur, &len, &tag, &xclass, rem);
3438 if (inf != V_ASN1_UNIVERSAL || tag != V_ASN1_INTEGER ||
3439 (rem = end - cur, len > rem)) {
3440 BIO_printf(bio_err, "No MessageID\n");
3441 goto end;
3442 }
3443
3444 cur += len; /* shall we check for MessageId match or just skip? */
3445
3446 /* pull [APPLICATION 24] */
3447 rem = end - cur;
3448 inf = ASN1_get_object(&cur, &len, &tag, &xclass, rem);
3449 if (inf != V_ASN1_CONSTRUCTED || xclass != V_ASN1_APPLICATION ||
3450 tag != 24) {
3451 BIO_printf(bio_err, "Not ExtendedResponse\n");
3452 goto end;
3453 }
3454
3455 /* pull resultCode */
3456 rem = end - cur;
3457 inf = ASN1_get_object(&cur, &len, &tag, &xclass, rem);
3458 if (inf != V_ASN1_UNIVERSAL || tag != V_ASN1_ENUMERATED || len == 0 ||
3459 (rem = end - cur, len > rem)) {
3460 BIO_printf(bio_err, "Not LDAPResult\n");
3461 goto end;
3462 }
3463
3464 /* len should always be one, but just in case... */
3465 for (ret = 0, inf = 0; inf < len; inf++) {
3466 ret <<= 8;
3467 ret |= cur[inf];
3468 }
3469 /* There is more data, but we don't care... */
3470 end:
3471 return ret;
3472 }
3473
3474 /*
3475 * Host dNS Name verifier: used for checking that the hostname is in dNS format
3476 * before setting it as SNI
3477 */
is_dNS_name(const char * host)3478 static int is_dNS_name(const char *host)
3479 {
3480 const size_t MAX_LABEL_LENGTH = 63;
3481 size_t i;
3482 int isdnsname = 0;
3483 size_t length = strlen(host);
3484 size_t label_length = 0;
3485 int all_numeric = 1;
3486
3487 /*
3488 * Deviation from strict DNS name syntax, also check names with '_'
3489 * Check DNS name syntax, any '-' or '.' must be internal,
3490 * and on either side of each '.' we can't have a '-' or '.'.
3491 *
3492 * If the name has just one label, we don't consider it a DNS name.
3493 */
3494 for (i = 0; i < length && label_length < MAX_LABEL_LENGTH; ++i) {
3495 char c = host[i];
3496
3497 if ((c >= 'a' && c <= 'z')
3498 || (c >= 'A' && c <= 'Z')
3499 || c == '_') {
3500 label_length += 1;
3501 all_numeric = 0;
3502 continue;
3503 }
3504
3505 if (c >= '0' && c <= '9') {
3506 label_length += 1;
3507 continue;
3508 }
3509
3510 /* Dot and hyphen cannot be first or last. */
3511 if (i > 0 && i < length - 1) {
3512 if (c == '-') {
3513 label_length += 1;
3514 continue;
3515 }
3516 /*
3517 * Next to a dot the preceding and following characters must not be
3518 * another dot or a hyphen. Otherwise, record that the name is
3519 * plausible, since it has two or more labels.
3520 */
3521 if (c == '.'
3522 && host[i + 1] != '.'
3523 && host[i - 1] != '-'
3524 && host[i + 1] != '-') {
3525 label_length = 0;
3526 isdnsname = 1;
3527 continue;
3528 }
3529 }
3530 isdnsname = 0;
3531 break;
3532 }
3533
3534 /* dNS name must not be all numeric and labels must be shorter than 64 characters. */
3535 isdnsname &= !all_numeric && !(label_length == MAX_LABEL_LENGTH);
3536
3537 return isdnsname;
3538 }
3539 #endif /* OPENSSL_NO_SOCK */
3540