1 /*
2 * Copyright 1995-2022 The OpenSSL Project Authors. All Rights Reserved.
3 * Copyright 2005 Nokia. All rights reserved.
4 *
5 * Licensed under the Apache License 2.0 (the "License"). You may not use
6 * this file except in compliance with the License. You can obtain a copy
7 * in the file LICENSE in the source distribution or at
8 * https://www.openssl.org/source/license.html
9 */
10
11 #include "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_CONNECT,
707 PROTO_IRC,
708 PROTO_MYSQL,
709 PROTO_POSTGRES,
710 PROTO_LMTP,
711 PROTO_NNTP,
712 PROTO_SIEVE,
713 PROTO_LDAP
714 } PROTOCOL_CHOICE;
715
716 static const OPT_PAIR services[] = {
717 {"smtp", PROTO_SMTP},
718 {"pop3", PROTO_POP3},
719 {"imap", PROTO_IMAP},
720 {"ftp", PROTO_FTP},
721 {"xmpp", PROTO_XMPP},
722 {"xmpp-server", PROTO_XMPP_SERVER},
723 {"telnet", PROTO_TELNET},
724 {"irc", PROTO_IRC},
725 {"mysql", PROTO_MYSQL},
726 {"postgres", PROTO_POSTGRES},
727 {"lmtp", PROTO_LMTP},
728 {"nntp", PROTO_NNTP},
729 {"sieve", PROTO_SIEVE},
730 {"ldap", PROTO_LDAP},
731 {NULL, 0}
732 };
733
734 #define IS_INET_FLAG(o) \
735 (o == OPT_4 || o == OPT_6 || o == OPT_HOST || o == OPT_PORT || o == OPT_CONNECT)
736 #define IS_UNIX_FLAG(o) (o == OPT_UNIX)
737
738 #define IS_PROT_FLAG(o) \
739 (o == OPT_SSL3 || o == OPT_TLS1 || o == OPT_TLS1_1 || o == OPT_TLS1_2 \
740 || o == OPT_TLS1_3 || o == OPT_DTLS || o == OPT_DTLS1 || o == OPT_DTLS1_2)
741
742 /* Free |*dest| and optionally set it to a copy of |source|. */
freeandcopy(char ** dest,const char * source)743 static void freeandcopy(char **dest, const char *source)
744 {
745 OPENSSL_free(*dest);
746 *dest = NULL;
747 if (source != NULL)
748 *dest = OPENSSL_strdup(source);
749 }
750
new_session_cb(SSL * s,SSL_SESSION * sess)751 static int new_session_cb(SSL *s, SSL_SESSION *sess)
752 {
753
754 if (sess_out != NULL) {
755 BIO *stmp = BIO_new_file(sess_out, "w");
756
757 if (stmp == NULL) {
758 BIO_printf(bio_err, "Error writing session file %s\n", sess_out);
759 } else {
760 PEM_write_bio_SSL_SESSION(stmp, sess);
761 BIO_free(stmp);
762 }
763 }
764
765 /*
766 * Session data gets dumped on connection for TLSv1.2 and below, and on
767 * arrival of the NewSessionTicket for TLSv1.3.
768 */
769 if (SSL_version(s) == TLS1_3_VERSION) {
770 BIO_printf(bio_c_out,
771 "---\nPost-Handshake New Session Ticket arrived:\n");
772 SSL_SESSION_print(bio_c_out, sess);
773 BIO_printf(bio_c_out, "---\n");
774 }
775
776 /*
777 * We always return a "fail" response so that the session gets freed again
778 * because we haven't used the reference.
779 */
780 return 0;
781 }
782
s_client_main(int argc,char ** argv)783 int s_client_main(int argc, char **argv)
784 {
785 BIO *sbio;
786 EVP_PKEY *key = NULL;
787 SSL *con = NULL;
788 SSL_CTX *ctx = NULL;
789 STACK_OF(X509) *chain = NULL;
790 X509 *cert = NULL;
791 X509_VERIFY_PARAM *vpm = NULL;
792 SSL_EXCERT *exc = NULL;
793 SSL_CONF_CTX *cctx = NULL;
794 STACK_OF(OPENSSL_STRING) *ssl_args = NULL;
795 char *dane_tlsa_domain = NULL;
796 STACK_OF(OPENSSL_STRING) *dane_tlsa_rrset = NULL;
797 int dane_ee_no_name = 0;
798 STACK_OF(X509_CRL) *crls = NULL;
799 const SSL_METHOD *meth = TLS_client_method();
800 const char *CApath = NULL, *CAfile = NULL, *CAstore = NULL;
801 char *cbuf = NULL, *sbuf = NULL, *mbuf = NULL;
802 char *proxystr = NULL, *proxyuser = NULL;
803 char *proxypassarg = NULL, *proxypass = NULL;
804 char *connectstr = NULL, *bindstr = NULL;
805 char *cert_file = NULL, *key_file = NULL, *chain_file = NULL;
806 char *chCApath = NULL, *chCAfile = NULL, *chCAstore = NULL, *host = NULL;
807 char *thost = NULL, *tport = NULL;
808 char *port = NULL;
809 char *bindhost = NULL, *bindport = NULL;
810 char *passarg = NULL, *pass = NULL;
811 char *vfyCApath = NULL, *vfyCAfile = NULL, *vfyCAstore = NULL;
812 char *ReqCAfile = NULL;
813 char *sess_in = NULL, *crl_file = NULL, *p;
814 const char *protohost = NULL;
815 struct timeval timeout, *timeoutp;
816 fd_set readfds, writefds;
817 int noCApath = 0, noCAfile = 0, noCAstore = 0;
818 int build_chain = 0, cbuf_len, cbuf_off, cert_format = FORMAT_UNDEF;
819 int key_format = FORMAT_UNDEF, crlf = 0, full_log = 1, mbuf_len = 0;
820 int prexit = 0;
821 int sdebug = 0;
822 int reconnect = 0, verify = SSL_VERIFY_NONE, vpmtouched = 0;
823 int ret = 1, in_init = 1, i, nbio_test = 0, sock = -1, k, width, state = 0;
824 int sbuf_len, sbuf_off, cmdletters = 1;
825 int socket_family = AF_UNSPEC, socket_type = SOCK_STREAM, protocol = 0;
826 int starttls_proto = PROTO_OFF, crl_format = FORMAT_UNDEF, crl_download = 0;
827 int write_tty, read_tty, write_ssl, read_ssl, tty_on, ssl_pending;
828 #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS)
829 int at_eof = 0;
830 #endif
831 int read_buf_len = 0;
832 int fallback_scsv = 0;
833 OPTION_CHOICE o;
834 #ifndef OPENSSL_NO_DTLS
835 int enable_timeouts = 0;
836 long socket_mtu = 0;
837 #endif
838 #ifndef OPENSSL_NO_ENGINE
839 ENGINE *ssl_client_engine = NULL;
840 #endif
841 ENGINE *e = NULL;
842 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
843 struct timeval tv;
844 #endif
845 const char *servername = NULL;
846 char *sname_alloc = NULL;
847 int noservername = 0;
848 const char *alpn_in = NULL;
849 tlsextctx tlsextcbp = { NULL, 0 };
850 const char *ssl_config = NULL;
851 #define MAX_SI_TYPES 100
852 unsigned short serverinfo_types[MAX_SI_TYPES];
853 int serverinfo_count = 0, start = 0, len;
854 #ifndef OPENSSL_NO_NEXTPROTONEG
855 const char *next_proto_neg_in = NULL;
856 #endif
857 #ifndef OPENSSL_NO_SRP
858 char *srppass = NULL;
859 int srp_lateuser = 0;
860 SRP_ARG srp_arg = { NULL, NULL, 0, 0, 0, 1024 };
861 #endif
862 #ifndef OPENSSL_NO_SRTP
863 char *srtp_profiles = NULL;
864 #endif
865 #ifndef OPENSSL_NO_CT
866 char *ctlog_file = NULL;
867 int ct_validation = 0;
868 #endif
869 int min_version = 0, max_version = 0, prot_opt = 0, no_prot_opt = 0;
870 int async = 0;
871 unsigned int max_send_fragment = 0;
872 unsigned int split_send_fragment = 0, max_pipelines = 0;
873 enum { use_inet, use_unix, use_unknown } connect_type = use_unknown;
874 int count4or6 = 0;
875 uint8_t maxfraglen = 0;
876 int c_nbio = 0, c_msg = 0, c_ign_eof = 0, c_brief = 0;
877 int c_tlsextdebug = 0;
878 #ifndef OPENSSL_NO_OCSP
879 int c_status_req = 0;
880 #endif
881 BIO *bio_c_msg = NULL;
882 const char *keylog_file = NULL, *early_data_file = NULL;
883 #ifndef OPENSSL_NO_DTLS
884 int isdtls = 0;
885 #endif
886 char *psksessf = NULL;
887 int enable_pha = 0;
888 #ifndef OPENSSL_NO_SCTP
889 int sctp_label_bug = 0;
890 #endif
891 int ignore_unexpected_eof = 0;
892
893 FD_ZERO(&readfds);
894 FD_ZERO(&writefds);
895 /* Known false-positive of MemorySanitizer. */
896 #if defined(__has_feature)
897 # if __has_feature(memory_sanitizer)
898 __msan_unpoison(&readfds, sizeof(readfds));
899 __msan_unpoison(&writefds, sizeof(writefds));
900 # endif
901 #endif
902
903 c_quiet = 0;
904 c_debug = 0;
905 c_showcerts = 0;
906 c_nbio = 0;
907 port = OPENSSL_strdup(PORT);
908 vpm = X509_VERIFY_PARAM_new();
909 cctx = SSL_CONF_CTX_new();
910
911 if (port == NULL || vpm == NULL || cctx == NULL) {
912 BIO_printf(bio_err, "%s: out of memory\n", opt_getprog());
913 goto end;
914 }
915
916 cbuf = app_malloc(BUFSIZZ, "cbuf");
917 sbuf = app_malloc(BUFSIZZ, "sbuf");
918 mbuf = app_malloc(BUFSIZZ, "mbuf");
919
920 SSL_CONF_CTX_set_flags(cctx, SSL_CONF_FLAG_CLIENT | SSL_CONF_FLAG_CMDLINE);
921
922 prog = opt_init(argc, argv, s_client_options);
923 while ((o = opt_next()) != OPT_EOF) {
924 /* Check for intermixing flags. */
925 if (connect_type == use_unix && IS_INET_FLAG(o)) {
926 BIO_printf(bio_err,
927 "%s: Intermixed protocol flags (unix and internet domains)\n",
928 prog);
929 goto end;
930 }
931 if (connect_type == use_inet && IS_UNIX_FLAG(o)) {
932 BIO_printf(bio_err,
933 "%s: Intermixed protocol flags (internet and unix domains)\n",
934 prog);
935 goto end;
936 }
937
938 if (IS_PROT_FLAG(o) && ++prot_opt > 1) {
939 BIO_printf(bio_err, "Cannot supply multiple protocol flags\n");
940 goto end;
941 }
942 if (IS_NO_PROT_FLAG(o))
943 no_prot_opt++;
944 if (prot_opt == 1 && no_prot_opt) {
945 BIO_printf(bio_err,
946 "Cannot supply both a protocol flag and '-no_<prot>'\n");
947 goto end;
948 }
949
950 switch (o) {
951 case OPT_EOF:
952 case OPT_ERR:
953 opthelp:
954 BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
955 goto end;
956 case OPT_HELP:
957 opt_help(s_client_options);
958 ret = 0;
959 goto end;
960 case OPT_4:
961 connect_type = use_inet;
962 socket_family = AF_INET;
963 count4or6++;
964 break;
965 #ifdef AF_INET6
966 case OPT_6:
967 connect_type = use_inet;
968 socket_family = AF_INET6;
969 count4or6++;
970 break;
971 #endif
972 case OPT_HOST:
973 connect_type = use_inet;
974 freeandcopy(&host, opt_arg());
975 break;
976 case OPT_PORT:
977 connect_type = use_inet;
978 freeandcopy(&port, opt_arg());
979 break;
980 case OPT_CONNECT:
981 connect_type = use_inet;
982 freeandcopy(&connectstr, opt_arg());
983 break;
984 case OPT_BIND:
985 freeandcopy(&bindstr, opt_arg());
986 break;
987 case OPT_PROXY:
988 proxystr = opt_arg();
989 starttls_proto = PROTO_CONNECT;
990 break;
991 case OPT_PROXY_USER:
992 proxyuser = opt_arg();
993 break;
994 case OPT_PROXY_PASS:
995 proxypassarg = opt_arg();
996 break;
997 #ifdef AF_UNIX
998 case OPT_UNIX:
999 connect_type = use_unix;
1000 socket_family = AF_UNIX;
1001 freeandcopy(&host, opt_arg());
1002 break;
1003 #endif
1004 case OPT_XMPPHOST:
1005 /* fall through, since this is an alias */
1006 case OPT_PROTOHOST:
1007 protohost = opt_arg();
1008 break;
1009 case OPT_VERIFY:
1010 verify = SSL_VERIFY_PEER;
1011 verify_args.depth = atoi(opt_arg());
1012 if (!c_quiet)
1013 BIO_printf(bio_err, "verify depth is %d\n", verify_args.depth);
1014 break;
1015 case OPT_CERT:
1016 cert_file = opt_arg();
1017 break;
1018 case OPT_NAMEOPT:
1019 if (!set_nameopt(opt_arg()))
1020 goto end;
1021 break;
1022 case OPT_CRL:
1023 crl_file = opt_arg();
1024 break;
1025 case OPT_CRL_DOWNLOAD:
1026 crl_download = 1;
1027 break;
1028 case OPT_SESS_OUT:
1029 sess_out = opt_arg();
1030 break;
1031 case OPT_SESS_IN:
1032 sess_in = opt_arg();
1033 break;
1034 case OPT_CERTFORM:
1035 if (!opt_format(opt_arg(), OPT_FMT_ANY, &cert_format))
1036 goto opthelp;
1037 break;
1038 case OPT_CRLFORM:
1039 if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &crl_format))
1040 goto opthelp;
1041 break;
1042 case OPT_VERIFY_RET_ERROR:
1043 verify = SSL_VERIFY_PEER;
1044 verify_args.return_error = 1;
1045 break;
1046 case OPT_VERIFY_QUIET:
1047 verify_args.quiet = 1;
1048 break;
1049 case OPT_BRIEF:
1050 c_brief = verify_args.quiet = c_quiet = 1;
1051 break;
1052 case OPT_S_CASES:
1053 if (ssl_args == NULL)
1054 ssl_args = sk_OPENSSL_STRING_new_null();
1055 if (ssl_args == NULL
1056 || !sk_OPENSSL_STRING_push(ssl_args, opt_flag())
1057 || !sk_OPENSSL_STRING_push(ssl_args, opt_arg())) {
1058 BIO_printf(bio_err, "%s: Memory allocation failure\n", prog);
1059 goto end;
1060 }
1061 break;
1062 case OPT_V_CASES:
1063 if (!opt_verify(o, vpm))
1064 goto end;
1065 vpmtouched++;
1066 break;
1067 case OPT_X_CASES:
1068 if (!args_excert(o, &exc))
1069 goto end;
1070 break;
1071 case OPT_IGNORE_UNEXPECTED_EOF:
1072 ignore_unexpected_eof = 1;
1073 break;
1074 case OPT_PREXIT:
1075 prexit = 1;
1076 break;
1077 case OPT_CRLF:
1078 crlf = 1;
1079 break;
1080 case OPT_QUIET:
1081 c_quiet = c_ign_eof = 1;
1082 break;
1083 case OPT_NBIO:
1084 c_nbio = 1;
1085 break;
1086 case OPT_NOCMDS:
1087 cmdletters = 0;
1088 break;
1089 case OPT_ENGINE:
1090 e = setup_engine(opt_arg(), 1);
1091 break;
1092 case OPT_SSL_CLIENT_ENGINE:
1093 #ifndef OPENSSL_NO_ENGINE
1094 ssl_client_engine = setup_engine(opt_arg(), 0);
1095 if (ssl_client_engine == NULL) {
1096 BIO_printf(bio_err, "Error getting client auth engine\n");
1097 goto opthelp;
1098 }
1099 #endif
1100 break;
1101 case OPT_R_CASES:
1102 if (!opt_rand(o))
1103 goto end;
1104 break;
1105 case OPT_PROV_CASES:
1106 if (!opt_provider(o))
1107 goto end;
1108 break;
1109 case OPT_IGN_EOF:
1110 c_ign_eof = 1;
1111 break;
1112 case OPT_NO_IGN_EOF:
1113 c_ign_eof = 0;
1114 break;
1115 case OPT_DEBUG:
1116 c_debug = 1;
1117 break;
1118 case OPT_TLSEXTDEBUG:
1119 c_tlsextdebug = 1;
1120 break;
1121 case OPT_STATUS:
1122 #ifndef OPENSSL_NO_OCSP
1123 c_status_req = 1;
1124 #endif
1125 break;
1126 case OPT_WDEBUG:
1127 #ifdef WATT32
1128 dbug_init();
1129 #endif
1130 break;
1131 case OPT_MSG:
1132 c_msg = 1;
1133 break;
1134 case OPT_MSGFILE:
1135 bio_c_msg = BIO_new_file(opt_arg(), "w");
1136 if (bio_c_msg == NULL) {
1137 BIO_printf(bio_err, "Error writing file %s\n", opt_arg());
1138 goto end;
1139 }
1140 break;
1141 case OPT_TRACE:
1142 #ifndef OPENSSL_NO_SSL_TRACE
1143 c_msg = 2;
1144 #endif
1145 break;
1146 case OPT_SECURITY_DEBUG:
1147 sdebug = 1;
1148 break;
1149 case OPT_SECURITY_DEBUG_VERBOSE:
1150 sdebug = 2;
1151 break;
1152 case OPT_SHOWCERTS:
1153 c_showcerts = 1;
1154 break;
1155 case OPT_NBIO_TEST:
1156 nbio_test = 1;
1157 break;
1158 case OPT_STATE:
1159 state = 1;
1160 break;
1161 case OPT_PSK_IDENTITY:
1162 psk_identity = opt_arg();
1163 break;
1164 case OPT_PSK:
1165 for (p = psk_key = opt_arg(); *p; p++) {
1166 if (isxdigit(_UC(*p)))
1167 continue;
1168 BIO_printf(bio_err, "Not a hex number '%s'\n", psk_key);
1169 goto end;
1170 }
1171 break;
1172 case OPT_PSK_SESS:
1173 psksessf = opt_arg();
1174 break;
1175 #ifndef OPENSSL_NO_SRP
1176 case OPT_SRPUSER:
1177 srp_arg.srplogin = opt_arg();
1178 if (min_version < TLS1_VERSION)
1179 min_version = TLS1_VERSION;
1180 break;
1181 case OPT_SRPPASS:
1182 srppass = opt_arg();
1183 if (min_version < TLS1_VERSION)
1184 min_version = TLS1_VERSION;
1185 break;
1186 case OPT_SRP_STRENGTH:
1187 srp_arg.strength = atoi(opt_arg());
1188 BIO_printf(bio_err, "SRP minimal length for N is %d\n",
1189 srp_arg.strength);
1190 if (min_version < TLS1_VERSION)
1191 min_version = TLS1_VERSION;
1192 break;
1193 case OPT_SRP_LATEUSER:
1194 srp_lateuser = 1;
1195 if (min_version < TLS1_VERSION)
1196 min_version = TLS1_VERSION;
1197 break;
1198 case OPT_SRP_MOREGROUPS:
1199 srp_arg.amp = 1;
1200 if (min_version < TLS1_VERSION)
1201 min_version = TLS1_VERSION;
1202 break;
1203 #endif
1204 case OPT_SSL_CONFIG:
1205 ssl_config = opt_arg();
1206 break;
1207 case OPT_SSL3:
1208 min_version = SSL3_VERSION;
1209 max_version = SSL3_VERSION;
1210 socket_type = SOCK_STREAM;
1211 #ifndef OPENSSL_NO_DTLS
1212 isdtls = 0;
1213 #endif
1214 break;
1215 case OPT_TLS1_3:
1216 min_version = TLS1_3_VERSION;
1217 max_version = TLS1_3_VERSION;
1218 socket_type = SOCK_STREAM;
1219 #ifndef OPENSSL_NO_DTLS
1220 isdtls = 0;
1221 #endif
1222 break;
1223 case OPT_TLS1_2:
1224 min_version = TLS1_2_VERSION;
1225 max_version = TLS1_2_VERSION;
1226 socket_type = SOCK_STREAM;
1227 #ifndef OPENSSL_NO_DTLS
1228 isdtls = 0;
1229 #endif
1230 break;
1231 case OPT_TLS1_1:
1232 min_version = TLS1_1_VERSION;
1233 max_version = TLS1_1_VERSION;
1234 socket_type = SOCK_STREAM;
1235 #ifndef OPENSSL_NO_DTLS
1236 isdtls = 0;
1237 #endif
1238 break;
1239 case OPT_TLS1:
1240 min_version = TLS1_VERSION;
1241 max_version = TLS1_VERSION;
1242 socket_type = SOCK_STREAM;
1243 #ifndef OPENSSL_NO_DTLS
1244 isdtls = 0;
1245 #endif
1246 break;
1247 case OPT_DTLS:
1248 #ifndef OPENSSL_NO_DTLS
1249 meth = DTLS_client_method();
1250 socket_type = SOCK_DGRAM;
1251 isdtls = 1;
1252 #endif
1253 break;
1254 case OPT_DTLS1:
1255 #ifndef OPENSSL_NO_DTLS1
1256 meth = DTLS_client_method();
1257 min_version = DTLS1_VERSION;
1258 max_version = DTLS1_VERSION;
1259 socket_type = SOCK_DGRAM;
1260 isdtls = 1;
1261 #endif
1262 break;
1263 case OPT_DTLS1_2:
1264 #ifndef OPENSSL_NO_DTLS1_2
1265 meth = DTLS_client_method();
1266 min_version = DTLS1_2_VERSION;
1267 max_version = DTLS1_2_VERSION;
1268 socket_type = SOCK_DGRAM;
1269 isdtls = 1;
1270 #endif
1271 break;
1272 case OPT_SCTP:
1273 #ifndef OPENSSL_NO_SCTP
1274 protocol = IPPROTO_SCTP;
1275 #endif
1276 break;
1277 case OPT_SCTP_LABEL_BUG:
1278 #ifndef OPENSSL_NO_SCTP
1279 sctp_label_bug = 1;
1280 #endif
1281 break;
1282 case OPT_TIMEOUT:
1283 #ifndef OPENSSL_NO_DTLS
1284 enable_timeouts = 1;
1285 #endif
1286 break;
1287 case OPT_MTU:
1288 #ifndef OPENSSL_NO_DTLS
1289 socket_mtu = atol(opt_arg());
1290 #endif
1291 break;
1292 case OPT_FALLBACKSCSV:
1293 fallback_scsv = 1;
1294 break;
1295 case OPT_KEYFORM:
1296 if (!opt_format(opt_arg(), OPT_FMT_ANY, &key_format))
1297 goto opthelp;
1298 break;
1299 case OPT_PASS:
1300 passarg = opt_arg();
1301 break;
1302 case OPT_CERT_CHAIN:
1303 chain_file = opt_arg();
1304 break;
1305 case OPT_KEY:
1306 key_file = opt_arg();
1307 break;
1308 case OPT_RECONNECT:
1309 reconnect = 5;
1310 break;
1311 case OPT_CAPATH:
1312 CApath = opt_arg();
1313 break;
1314 case OPT_NOCAPATH:
1315 noCApath = 1;
1316 break;
1317 case OPT_CHAINCAPATH:
1318 chCApath = opt_arg();
1319 break;
1320 case OPT_VERIFYCAPATH:
1321 vfyCApath = opt_arg();
1322 break;
1323 case OPT_BUILD_CHAIN:
1324 build_chain = 1;
1325 break;
1326 case OPT_REQCAFILE:
1327 ReqCAfile = opt_arg();
1328 break;
1329 case OPT_CAFILE:
1330 CAfile = opt_arg();
1331 break;
1332 case OPT_NOCAFILE:
1333 noCAfile = 1;
1334 break;
1335 #ifndef OPENSSL_NO_CT
1336 case OPT_NOCT:
1337 ct_validation = 0;
1338 break;
1339 case OPT_CT:
1340 ct_validation = 1;
1341 break;
1342 case OPT_CTLOG_FILE:
1343 ctlog_file = opt_arg();
1344 break;
1345 #endif
1346 case OPT_CHAINCAFILE:
1347 chCAfile = opt_arg();
1348 break;
1349 case OPT_VERIFYCAFILE:
1350 vfyCAfile = opt_arg();
1351 break;
1352 case OPT_CASTORE:
1353 CAstore = opt_arg();
1354 break;
1355 case OPT_NOCASTORE:
1356 noCAstore = 1;
1357 break;
1358 case OPT_CHAINCASTORE:
1359 chCAstore = opt_arg();
1360 break;
1361 case OPT_VERIFYCASTORE:
1362 vfyCAstore = opt_arg();
1363 break;
1364 case OPT_DANE_TLSA_DOMAIN:
1365 dane_tlsa_domain = opt_arg();
1366 break;
1367 case OPT_DANE_TLSA_RRDATA:
1368 if (dane_tlsa_rrset == NULL)
1369 dane_tlsa_rrset = sk_OPENSSL_STRING_new_null();
1370 if (dane_tlsa_rrset == NULL ||
1371 !sk_OPENSSL_STRING_push(dane_tlsa_rrset, opt_arg())) {
1372 BIO_printf(bio_err, "%s: Memory allocation failure\n", prog);
1373 goto end;
1374 }
1375 break;
1376 case OPT_DANE_EE_NO_NAME:
1377 dane_ee_no_name = 1;
1378 break;
1379 case OPT_NEXTPROTONEG:
1380 #ifndef OPENSSL_NO_NEXTPROTONEG
1381 next_proto_neg_in = opt_arg();
1382 #endif
1383 break;
1384 case OPT_ALPN:
1385 alpn_in = opt_arg();
1386 break;
1387 case OPT_SERVERINFO:
1388 p = opt_arg();
1389 len = strlen(p);
1390 for (start = 0, i = 0; i <= len; ++i) {
1391 if (i == len || p[i] == ',') {
1392 serverinfo_types[serverinfo_count] = atoi(p + start);
1393 if (++serverinfo_count == MAX_SI_TYPES)
1394 break;
1395 start = i + 1;
1396 }
1397 }
1398 break;
1399 case OPT_STARTTLS:
1400 if (!opt_pair(opt_arg(), services, &starttls_proto))
1401 goto end;
1402 break;
1403 case OPT_SERVERNAME:
1404 servername = opt_arg();
1405 break;
1406 case OPT_NOSERVERNAME:
1407 noservername = 1;
1408 break;
1409 case OPT_USE_SRTP:
1410 #ifndef OPENSSL_NO_SRTP
1411 srtp_profiles = opt_arg();
1412 #endif
1413 break;
1414 case OPT_KEYMATEXPORT:
1415 keymatexportlabel = opt_arg();
1416 break;
1417 case OPT_KEYMATEXPORTLEN:
1418 keymatexportlen = atoi(opt_arg());
1419 break;
1420 case OPT_ASYNC:
1421 async = 1;
1422 break;
1423 case OPT_MAXFRAGLEN:
1424 len = atoi(opt_arg());
1425 switch (len) {
1426 case 512:
1427 maxfraglen = TLSEXT_max_fragment_length_512;
1428 break;
1429 case 1024:
1430 maxfraglen = TLSEXT_max_fragment_length_1024;
1431 break;
1432 case 2048:
1433 maxfraglen = TLSEXT_max_fragment_length_2048;
1434 break;
1435 case 4096:
1436 maxfraglen = TLSEXT_max_fragment_length_4096;
1437 break;
1438 default:
1439 BIO_printf(bio_err,
1440 "%s: Max Fragment Len %u is out of permitted values",
1441 prog, len);
1442 goto opthelp;
1443 }
1444 break;
1445 case OPT_MAX_SEND_FRAG:
1446 max_send_fragment = atoi(opt_arg());
1447 break;
1448 case OPT_SPLIT_SEND_FRAG:
1449 split_send_fragment = atoi(opt_arg());
1450 break;
1451 case OPT_MAX_PIPELINES:
1452 max_pipelines = atoi(opt_arg());
1453 break;
1454 case OPT_READ_BUF:
1455 read_buf_len = atoi(opt_arg());
1456 break;
1457 case OPT_KEYLOG_FILE:
1458 keylog_file = opt_arg();
1459 break;
1460 case OPT_EARLY_DATA:
1461 early_data_file = opt_arg();
1462 break;
1463 case OPT_ENABLE_PHA:
1464 enable_pha = 1;
1465 break;
1466 }
1467 }
1468
1469 /* Optional argument is connect string if -connect not used. */
1470 argc = opt_num_rest();
1471 if (argc == 1) {
1472 /* Don't allow -connect and a separate argument. */
1473 if (connectstr != NULL) {
1474 BIO_printf(bio_err,
1475 "%s: cannot provide both -connect option and target parameter\n",
1476 prog);
1477 goto opthelp;
1478 }
1479 connect_type = use_inet;
1480 freeandcopy(&connectstr, *opt_rest());
1481 } else if (argc != 0) {
1482 goto opthelp;
1483 }
1484 if (!app_RAND_load())
1485 goto end;
1486
1487 if (count4or6 >= 2) {
1488 BIO_printf(bio_err, "%s: Can't use both -4 and -6\n", prog);
1489 goto opthelp;
1490 }
1491 if (noservername) {
1492 if (servername != NULL) {
1493 BIO_printf(bio_err,
1494 "%s: Can't use -servername and -noservername together\n",
1495 prog);
1496 goto opthelp;
1497 }
1498 if (dane_tlsa_domain != NULL) {
1499 BIO_printf(bio_err,
1500 "%s: Can't use -dane_tlsa_domain and -noservername together\n",
1501 prog);
1502 goto opthelp;
1503 }
1504 }
1505
1506 #ifndef OPENSSL_NO_NEXTPROTONEG
1507 if (min_version == TLS1_3_VERSION && next_proto_neg_in != NULL) {
1508 BIO_printf(bio_err, "Cannot supply -nextprotoneg with TLSv1.3\n");
1509 goto opthelp;
1510 }
1511 #endif
1512
1513 if (connectstr != NULL) {
1514 int res;
1515 char *tmp_host = host, *tmp_port = port;
1516
1517 res = BIO_parse_hostserv(connectstr, &host, &port, BIO_PARSE_PRIO_HOST);
1518 if (tmp_host != host)
1519 OPENSSL_free(tmp_host);
1520 if (tmp_port != port)
1521 OPENSSL_free(tmp_port);
1522 if (!res) {
1523 BIO_printf(bio_err,
1524 "%s: -connect argument or target parameter malformed or ambiguous\n",
1525 prog);
1526 goto end;
1527 }
1528 }
1529
1530 if (proxystr != NULL) {
1531 int res;
1532 char *tmp_host = host, *tmp_port = port;
1533
1534 if (host == NULL || port == NULL) {
1535 BIO_printf(bio_err, "%s: -proxy requires use of -connect or target parameter\n", prog);
1536 goto opthelp;
1537 }
1538
1539 if (servername == NULL && !noservername) {
1540 servername = sname_alloc = OPENSSL_strdup(host);
1541 if (sname_alloc == NULL) {
1542 BIO_printf(bio_err, "%s: out of memory\n", prog);
1543 goto end;
1544 }
1545 }
1546
1547 /* Retain the original target host:port for use in the HTTP proxy connect string */
1548 thost = OPENSSL_strdup(host);
1549 tport = OPENSSL_strdup(port);
1550 if (thost == NULL || tport == NULL) {
1551 BIO_printf(bio_err, "%s: out of memory\n", prog);
1552 goto end;
1553 }
1554
1555 res = BIO_parse_hostserv(proxystr, &host, &port, BIO_PARSE_PRIO_HOST);
1556 if (tmp_host != host)
1557 OPENSSL_free(tmp_host);
1558 if (tmp_port != port)
1559 OPENSSL_free(tmp_port);
1560 if (!res) {
1561 BIO_printf(bio_err,
1562 "%s: -proxy argument malformed or ambiguous\n", prog);
1563 goto end;
1564 }
1565 }
1566
1567 if (bindstr != NULL) {
1568 int res;
1569 res = BIO_parse_hostserv(bindstr, &bindhost, &bindport,
1570 BIO_PARSE_PRIO_HOST);
1571 if (!res) {
1572 BIO_printf(bio_err,
1573 "%s: -bind argument parameter malformed or ambiguous\n",
1574 prog);
1575 goto end;
1576 }
1577 }
1578
1579 #ifdef AF_UNIX
1580 if (socket_family == AF_UNIX && socket_type != SOCK_STREAM) {
1581 BIO_printf(bio_err,
1582 "Can't use unix sockets and datagrams together\n");
1583 goto end;
1584 }
1585 #endif
1586
1587 #ifndef OPENSSL_NO_SCTP
1588 if (protocol == IPPROTO_SCTP) {
1589 if (socket_type != SOCK_DGRAM) {
1590 BIO_printf(bio_err, "Can't use -sctp without DTLS\n");
1591 goto end;
1592 }
1593 /* SCTP is unusual. It uses DTLS over a SOCK_STREAM protocol */
1594 socket_type = SOCK_STREAM;
1595 }
1596 #endif
1597
1598 #if !defined(OPENSSL_NO_NEXTPROTONEG)
1599 next_proto.status = -1;
1600 if (next_proto_neg_in) {
1601 next_proto.data =
1602 next_protos_parse(&next_proto.len, next_proto_neg_in);
1603 if (next_proto.data == NULL) {
1604 BIO_printf(bio_err, "Error parsing -nextprotoneg argument\n");
1605 goto end;
1606 }
1607 } else
1608 next_proto.data = NULL;
1609 #endif
1610
1611 if (!app_passwd(passarg, NULL, &pass, NULL)) {
1612 BIO_printf(bio_err, "Error getting private key password\n");
1613 goto end;
1614 }
1615
1616 if (!app_passwd(proxypassarg, NULL, &proxypass, NULL)) {
1617 BIO_printf(bio_err, "Error getting proxy password\n");
1618 goto end;
1619 }
1620
1621 if (proxypass != NULL && proxyuser == NULL) {
1622 BIO_printf(bio_err, "Error: Must specify proxy_user with proxy_pass\n");
1623 goto end;
1624 }
1625
1626 if (key_file == NULL)
1627 key_file = cert_file;
1628
1629 if (key_file != NULL) {
1630 key = load_key(key_file, key_format, 0, pass, e,
1631 "client certificate private key");
1632 if (key == NULL)
1633 goto end;
1634 }
1635
1636 if (cert_file != NULL) {
1637 cert = load_cert_pass(cert_file, cert_format, 1, pass,
1638 "client certificate");
1639 if (cert == NULL)
1640 goto end;
1641 }
1642
1643 if (chain_file != NULL) {
1644 if (!load_certs(chain_file, 0, &chain, pass, "client certificate chain"))
1645 goto end;
1646 }
1647
1648 if (crl_file != NULL) {
1649 X509_CRL *crl;
1650 crl = load_crl(crl_file, crl_format, 0, "CRL");
1651 if (crl == NULL)
1652 goto end;
1653 crls = sk_X509_CRL_new_null();
1654 if (crls == NULL || !sk_X509_CRL_push(crls, crl)) {
1655 BIO_puts(bio_err, "Error adding CRL\n");
1656 ERR_print_errors(bio_err);
1657 X509_CRL_free(crl);
1658 goto end;
1659 }
1660 }
1661
1662 if (!load_excert(&exc))
1663 goto end;
1664
1665 if (bio_c_out == NULL) {
1666 if (c_quiet && !c_debug) {
1667 bio_c_out = BIO_new(BIO_s_null());
1668 if (c_msg && bio_c_msg == NULL) {
1669 bio_c_msg = dup_bio_out(FORMAT_TEXT);
1670 if (bio_c_msg == NULL) {
1671 BIO_printf(bio_err, "Out of memory\n");
1672 goto end;
1673 }
1674 }
1675 } else {
1676 bio_c_out = dup_bio_out(FORMAT_TEXT);
1677 }
1678
1679 if (bio_c_out == NULL) {
1680 BIO_printf(bio_err, "Unable to create BIO\n");
1681 goto end;
1682 }
1683 }
1684 #ifndef OPENSSL_NO_SRP
1685 if (!app_passwd(srppass, NULL, &srp_arg.srppassin, NULL)) {
1686 BIO_printf(bio_err, "Error getting password\n");
1687 goto end;
1688 }
1689 #endif
1690
1691 ctx = SSL_CTX_new_ex(app_get0_libctx(), app_get0_propq(), meth);
1692 if (ctx == NULL) {
1693 ERR_print_errors(bio_err);
1694 goto end;
1695 }
1696
1697 SSL_CTX_clear_mode(ctx, SSL_MODE_AUTO_RETRY);
1698
1699 if (sdebug)
1700 ssl_ctx_security_debug(ctx, sdebug);
1701
1702 if (!config_ctx(cctx, ssl_args, ctx))
1703 goto end;
1704
1705 if (ssl_config != NULL) {
1706 if (SSL_CTX_config(ctx, ssl_config) == 0) {
1707 BIO_printf(bio_err, "Error using configuration \"%s\"\n",
1708 ssl_config);
1709 ERR_print_errors(bio_err);
1710 goto end;
1711 }
1712 }
1713
1714 #ifndef OPENSSL_NO_SCTP
1715 if (protocol == IPPROTO_SCTP && sctp_label_bug == 1)
1716 SSL_CTX_set_mode(ctx, SSL_MODE_DTLS_SCTP_LABEL_LENGTH_BUG);
1717 #endif
1718
1719 if (min_version != 0
1720 && SSL_CTX_set_min_proto_version(ctx, min_version) == 0)
1721 goto end;
1722 if (max_version != 0
1723 && SSL_CTX_set_max_proto_version(ctx, max_version) == 0)
1724 goto end;
1725
1726 if (ignore_unexpected_eof)
1727 SSL_CTX_set_options(ctx, SSL_OP_IGNORE_UNEXPECTED_EOF);
1728
1729 if (vpmtouched && !SSL_CTX_set1_param(ctx, vpm)) {
1730 BIO_printf(bio_err, "Error setting verify params\n");
1731 ERR_print_errors(bio_err);
1732 goto end;
1733 }
1734
1735 if (async) {
1736 SSL_CTX_set_mode(ctx, SSL_MODE_ASYNC);
1737 }
1738
1739 if (max_send_fragment > 0
1740 && !SSL_CTX_set_max_send_fragment(ctx, max_send_fragment)) {
1741 BIO_printf(bio_err, "%s: Max send fragment size %u is out of permitted range\n",
1742 prog, max_send_fragment);
1743 goto end;
1744 }
1745
1746 if (split_send_fragment > 0
1747 && !SSL_CTX_set_split_send_fragment(ctx, split_send_fragment)) {
1748 BIO_printf(bio_err, "%s: Split send fragment size %u is out of permitted range\n",
1749 prog, split_send_fragment);
1750 goto end;
1751 }
1752
1753 if (max_pipelines > 0
1754 && !SSL_CTX_set_max_pipelines(ctx, max_pipelines)) {
1755 BIO_printf(bio_err, "%s: Max pipelines %u is out of permitted range\n",
1756 prog, max_pipelines);
1757 goto end;
1758 }
1759
1760 if (read_buf_len > 0) {
1761 SSL_CTX_set_default_read_buffer_len(ctx, read_buf_len);
1762 }
1763
1764 if (maxfraglen > 0
1765 && !SSL_CTX_set_tlsext_max_fragment_length(ctx, maxfraglen)) {
1766 BIO_printf(bio_err,
1767 "%s: Max Fragment Length code %u is out of permitted values"
1768 "\n", prog, maxfraglen);
1769 goto end;
1770 }
1771
1772 if (!ssl_load_stores(ctx,
1773 vfyCApath, vfyCAfile, vfyCAstore,
1774 chCApath, chCAfile, chCAstore,
1775 crls, crl_download)) {
1776 BIO_printf(bio_err, "Error loading store locations\n");
1777 ERR_print_errors(bio_err);
1778 goto end;
1779 }
1780 if (ReqCAfile != NULL) {
1781 STACK_OF(X509_NAME) *nm = sk_X509_NAME_new_null();
1782
1783 if (nm == NULL || !SSL_add_file_cert_subjects_to_stack(nm, ReqCAfile)) {
1784 sk_X509_NAME_pop_free(nm, X509_NAME_free);
1785 BIO_printf(bio_err, "Error loading CA names\n");
1786 ERR_print_errors(bio_err);
1787 goto end;
1788 }
1789 SSL_CTX_set0_CA_list(ctx, nm);
1790 }
1791 #ifndef OPENSSL_NO_ENGINE
1792 if (ssl_client_engine) {
1793 if (!SSL_CTX_set_client_cert_engine(ctx, ssl_client_engine)) {
1794 BIO_puts(bio_err, "Error setting client auth engine\n");
1795 ERR_print_errors(bio_err);
1796 release_engine(ssl_client_engine);
1797 goto end;
1798 }
1799 release_engine(ssl_client_engine);
1800 }
1801 #endif
1802
1803 #ifndef OPENSSL_NO_PSK
1804 if (psk_key != NULL) {
1805 if (c_debug)
1806 BIO_printf(bio_c_out, "PSK key given, setting client callback\n");
1807 SSL_CTX_set_psk_client_callback(ctx, psk_client_cb);
1808 }
1809 #endif
1810 if (psksessf != NULL) {
1811 BIO *stmp = BIO_new_file(psksessf, "r");
1812
1813 if (stmp == NULL) {
1814 BIO_printf(bio_err, "Can't open PSK session file %s\n", psksessf);
1815 ERR_print_errors(bio_err);
1816 goto end;
1817 }
1818 psksess = PEM_read_bio_SSL_SESSION(stmp, NULL, 0, NULL);
1819 BIO_free(stmp);
1820 if (psksess == NULL) {
1821 BIO_printf(bio_err, "Can't read PSK session file %s\n", psksessf);
1822 ERR_print_errors(bio_err);
1823 goto end;
1824 }
1825 }
1826 if (psk_key != NULL || psksess != NULL)
1827 SSL_CTX_set_psk_use_session_callback(ctx, psk_use_session_cb);
1828
1829 #ifndef OPENSSL_NO_SRTP
1830 if (srtp_profiles != NULL) {
1831 /* Returns 0 on success! */
1832 if (SSL_CTX_set_tlsext_use_srtp(ctx, srtp_profiles) != 0) {
1833 BIO_printf(bio_err, "Error setting SRTP profile\n");
1834 ERR_print_errors(bio_err);
1835 goto end;
1836 }
1837 }
1838 #endif
1839
1840 if (exc != NULL)
1841 ssl_ctx_set_excert(ctx, exc);
1842
1843 #if !defined(OPENSSL_NO_NEXTPROTONEG)
1844 if (next_proto.data != NULL)
1845 SSL_CTX_set_next_proto_select_cb(ctx, next_proto_cb, &next_proto);
1846 #endif
1847 if (alpn_in) {
1848 size_t alpn_len;
1849 unsigned char *alpn = next_protos_parse(&alpn_len, alpn_in);
1850
1851 if (alpn == NULL) {
1852 BIO_printf(bio_err, "Error parsing -alpn argument\n");
1853 goto end;
1854 }
1855 /* Returns 0 on success! */
1856 if (SSL_CTX_set_alpn_protos(ctx, alpn, alpn_len) != 0) {
1857 BIO_printf(bio_err, "Error setting ALPN\n");
1858 goto end;
1859 }
1860 OPENSSL_free(alpn);
1861 }
1862
1863 for (i = 0; i < serverinfo_count; i++) {
1864 if (!SSL_CTX_add_client_custom_ext(ctx,
1865 serverinfo_types[i],
1866 NULL, NULL, NULL,
1867 serverinfo_cli_parse_cb, NULL)) {
1868 BIO_printf(bio_err,
1869 "Warning: Unable to add custom extension %u, skipping\n",
1870 serverinfo_types[i]);
1871 }
1872 }
1873
1874 if (state)
1875 SSL_CTX_set_info_callback(ctx, apps_ssl_info_callback);
1876
1877 #ifndef OPENSSL_NO_CT
1878 /* Enable SCT processing, without early connection termination */
1879 if (ct_validation &&
1880 !SSL_CTX_enable_ct(ctx, SSL_CT_VALIDATION_PERMISSIVE)) {
1881 ERR_print_errors(bio_err);
1882 goto end;
1883 }
1884
1885 if (!ctx_set_ctlog_list_file(ctx, ctlog_file)) {
1886 if (ct_validation) {
1887 ERR_print_errors(bio_err);
1888 goto end;
1889 }
1890
1891 /*
1892 * If CT validation is not enabled, the log list isn't needed so don't
1893 * show errors or abort. We try to load it regardless because then we
1894 * can show the names of the logs any SCTs came from (SCTs may be seen
1895 * even with validation disabled).
1896 */
1897 ERR_clear_error();
1898 }
1899 #endif
1900
1901 SSL_CTX_set_verify(ctx, verify, verify_callback);
1902
1903 if (!ctx_set_verify_locations(ctx, CAfile, noCAfile, CApath, noCApath,
1904 CAstore, noCAstore)) {
1905 ERR_print_errors(bio_err);
1906 goto end;
1907 }
1908
1909 ssl_ctx_add_crls(ctx, crls, crl_download);
1910
1911 if (!set_cert_key_stuff(ctx, cert, key, chain, build_chain))
1912 goto end;
1913
1914 if (!noservername) {
1915 tlsextcbp.biodebug = bio_err;
1916 SSL_CTX_set_tlsext_servername_callback(ctx, ssl_servername_cb);
1917 SSL_CTX_set_tlsext_servername_arg(ctx, &tlsextcbp);
1918 }
1919 #ifndef OPENSSL_NO_SRP
1920 if (srp_arg.srplogin != NULL
1921 && !set_up_srp_arg(ctx, &srp_arg, srp_lateuser, c_msg, c_debug))
1922 goto end;
1923 # endif
1924
1925 if (dane_tlsa_domain != NULL) {
1926 if (SSL_CTX_dane_enable(ctx) <= 0) {
1927 BIO_printf(bio_err,
1928 "%s: Error enabling DANE TLSA authentication.\n",
1929 prog);
1930 ERR_print_errors(bio_err);
1931 goto end;
1932 }
1933 }
1934
1935 /*
1936 * In TLSv1.3 NewSessionTicket messages arrive after the handshake and can
1937 * come at any time. Therefore we use a callback to write out the session
1938 * when we know about it. This approach works for < TLSv1.3 as well.
1939 */
1940 SSL_CTX_set_session_cache_mode(ctx, SSL_SESS_CACHE_CLIENT
1941 | SSL_SESS_CACHE_NO_INTERNAL_STORE);
1942 SSL_CTX_sess_set_new_cb(ctx, new_session_cb);
1943
1944 if (set_keylog_file(ctx, keylog_file))
1945 goto end;
1946
1947 con = SSL_new(ctx);
1948 if (con == NULL)
1949 goto end;
1950
1951 if (enable_pha)
1952 SSL_set_post_handshake_auth(con, 1);
1953
1954 if (sess_in != NULL) {
1955 SSL_SESSION *sess;
1956 BIO *stmp = BIO_new_file(sess_in, "r");
1957 if (stmp == NULL) {
1958 BIO_printf(bio_err, "Can't open session file %s\n", sess_in);
1959 ERR_print_errors(bio_err);
1960 goto end;
1961 }
1962 sess = PEM_read_bio_SSL_SESSION(stmp, NULL, 0, NULL);
1963 BIO_free(stmp);
1964 if (sess == NULL) {
1965 BIO_printf(bio_err, "Can't open session file %s\n", sess_in);
1966 ERR_print_errors(bio_err);
1967 goto end;
1968 }
1969 if (!SSL_set_session(con, sess)) {
1970 BIO_printf(bio_err, "Can't set session\n");
1971 ERR_print_errors(bio_err);
1972 goto end;
1973 }
1974
1975 SSL_SESSION_free(sess);
1976 }
1977
1978 if (fallback_scsv)
1979 SSL_set_mode(con, SSL_MODE_SEND_FALLBACK_SCSV);
1980
1981 if (!noservername && (servername != NULL || dane_tlsa_domain == NULL)) {
1982 if (servername == NULL) {
1983 if(host == NULL || is_dNS_name(host))
1984 servername = (host == NULL) ? "localhost" : host;
1985 }
1986 if (servername != NULL && !SSL_set_tlsext_host_name(con, servername)) {
1987 BIO_printf(bio_err, "Unable to set TLS servername extension.\n");
1988 ERR_print_errors(bio_err);
1989 goto end;
1990 }
1991 }
1992
1993 if (dane_tlsa_domain != NULL) {
1994 if (SSL_dane_enable(con, dane_tlsa_domain) <= 0) {
1995 BIO_printf(bio_err, "%s: Error enabling DANE TLSA "
1996 "authentication.\n", prog);
1997 ERR_print_errors(bio_err);
1998 goto end;
1999 }
2000 if (dane_tlsa_rrset == NULL) {
2001 BIO_printf(bio_err, "%s: DANE TLSA authentication requires at "
2002 "least one -dane_tlsa_rrdata option.\n", prog);
2003 goto end;
2004 }
2005 if (tlsa_import_rrset(con, dane_tlsa_rrset) <= 0) {
2006 BIO_printf(bio_err, "%s: Failed to import any TLSA "
2007 "records.\n", prog);
2008 goto end;
2009 }
2010 if (dane_ee_no_name)
2011 SSL_dane_set_flags(con, DANE_FLAG_NO_DANE_EE_NAMECHECKS);
2012 } else if (dane_tlsa_rrset != NULL) {
2013 BIO_printf(bio_err, "%s: DANE TLSA authentication requires the "
2014 "-dane_tlsa_domain option.\n", prog);
2015 goto end;
2016 }
2017
2018 re_start:
2019 if (init_client(&sock, host, port, bindhost, bindport, socket_family,
2020 socket_type, protocol) == 0) {
2021 BIO_printf(bio_err, "connect:errno=%d\n", get_last_socket_error());
2022 BIO_closesocket(sock);
2023 goto end;
2024 }
2025 BIO_printf(bio_c_out, "CONNECTED(%08X)\n", sock);
2026
2027 if (c_nbio) {
2028 if (!BIO_socket_nbio(sock, 1)) {
2029 ERR_print_errors(bio_err);
2030 goto end;
2031 }
2032 BIO_printf(bio_c_out, "Turned on non blocking io\n");
2033 }
2034 #ifndef OPENSSL_NO_DTLS
2035 if (isdtls) {
2036 union BIO_sock_info_u peer_info;
2037
2038 #ifndef OPENSSL_NO_SCTP
2039 if (protocol == IPPROTO_SCTP)
2040 sbio = BIO_new_dgram_sctp(sock, BIO_NOCLOSE);
2041 else
2042 #endif
2043 sbio = BIO_new_dgram(sock, BIO_NOCLOSE);
2044
2045 if (sbio == NULL || (peer_info.addr = BIO_ADDR_new()) == NULL) {
2046 BIO_printf(bio_err, "memory allocation failure\n");
2047 BIO_free(sbio);
2048 BIO_closesocket(sock);
2049 goto end;
2050 }
2051 if (!BIO_sock_info(sock, BIO_SOCK_INFO_ADDRESS, &peer_info)) {
2052 BIO_printf(bio_err, "getsockname:errno=%d\n",
2053 get_last_socket_error());
2054 BIO_free(sbio);
2055 BIO_ADDR_free(peer_info.addr);
2056 BIO_closesocket(sock);
2057 goto end;
2058 }
2059
2060 (void)BIO_ctrl_set_connected(sbio, peer_info.addr);
2061 BIO_ADDR_free(peer_info.addr);
2062 peer_info.addr = NULL;
2063
2064 if (enable_timeouts) {
2065 timeout.tv_sec = 0;
2066 timeout.tv_usec = DGRAM_RCV_TIMEOUT;
2067 BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_RECV_TIMEOUT, 0, &timeout);
2068
2069 timeout.tv_sec = 0;
2070 timeout.tv_usec = DGRAM_SND_TIMEOUT;
2071 BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_SEND_TIMEOUT, 0, &timeout);
2072 }
2073
2074 if (socket_mtu) {
2075 if (socket_mtu < DTLS_get_link_min_mtu(con)) {
2076 BIO_printf(bio_err, "MTU too small. Must be at least %ld\n",
2077 DTLS_get_link_min_mtu(con));
2078 BIO_free(sbio);
2079 goto shut;
2080 }
2081 SSL_set_options(con, SSL_OP_NO_QUERY_MTU);
2082 if (!DTLS_set_link_mtu(con, socket_mtu)) {
2083 BIO_printf(bio_err, "Failed to set MTU\n");
2084 BIO_free(sbio);
2085 goto shut;
2086 }
2087 } else {
2088 /* want to do MTU discovery */
2089 BIO_ctrl(sbio, BIO_CTRL_DGRAM_MTU_DISCOVER, 0, NULL);
2090 }
2091 } else
2092 #endif /* OPENSSL_NO_DTLS */
2093 sbio = BIO_new_socket(sock, BIO_NOCLOSE);
2094
2095 if (sbio == NULL) {
2096 BIO_printf(bio_err, "Unable to create BIO\n");
2097 ERR_print_errors(bio_err);
2098 BIO_closesocket(sock);
2099 goto end;
2100 }
2101
2102 if (nbio_test) {
2103 BIO *test;
2104
2105 test = BIO_new(BIO_f_nbio_test());
2106 if (test == NULL) {
2107 BIO_printf(bio_err, "Unable to create BIO\n");
2108 BIO_free(sbio);
2109 goto shut;
2110 }
2111 sbio = BIO_push(test, sbio);
2112 }
2113
2114 if (c_debug) {
2115 BIO_set_callback_ex(sbio, bio_dump_callback);
2116 BIO_set_callback_arg(sbio, (char *)bio_c_out);
2117 }
2118 if (c_msg) {
2119 #ifndef OPENSSL_NO_SSL_TRACE
2120 if (c_msg == 2)
2121 SSL_set_msg_callback(con, SSL_trace);
2122 else
2123 #endif
2124 SSL_set_msg_callback(con, msg_cb);
2125 SSL_set_msg_callback_arg(con, bio_c_msg ? bio_c_msg : bio_c_out);
2126 }
2127
2128 if (c_tlsextdebug) {
2129 SSL_set_tlsext_debug_callback(con, tlsext_cb);
2130 SSL_set_tlsext_debug_arg(con, bio_c_out);
2131 }
2132 #ifndef OPENSSL_NO_OCSP
2133 if (c_status_req) {
2134 SSL_set_tlsext_status_type(con, TLSEXT_STATUSTYPE_ocsp);
2135 SSL_CTX_set_tlsext_status_cb(ctx, ocsp_resp_cb);
2136 SSL_CTX_set_tlsext_status_arg(ctx, bio_c_out);
2137 }
2138 #endif
2139
2140 SSL_set_bio(con, sbio, sbio);
2141 SSL_set_connect_state(con);
2142
2143 /* ok, lets connect */
2144 if (fileno_stdin() > SSL_get_fd(con))
2145 width = fileno_stdin() + 1;
2146 else
2147 width = SSL_get_fd(con) + 1;
2148
2149 read_tty = 1;
2150 write_tty = 0;
2151 tty_on = 0;
2152 read_ssl = 1;
2153 write_ssl = 1;
2154
2155 cbuf_len = 0;
2156 cbuf_off = 0;
2157 sbuf_len = 0;
2158 sbuf_off = 0;
2159
2160 switch ((PROTOCOL_CHOICE) starttls_proto) {
2161 case PROTO_OFF:
2162 break;
2163 case PROTO_LMTP:
2164 case PROTO_SMTP:
2165 {
2166 /*
2167 * This is an ugly hack that does a lot of assumptions. We do
2168 * have to handle multi-line responses which may come in a single
2169 * packet or not. We therefore have to use BIO_gets() which does
2170 * need a buffering BIO. So during the initial chitchat we do
2171 * push a buffering BIO into the chain that is removed again
2172 * later on to not disturb the rest of the s_client operation.
2173 */
2174 int foundit = 0;
2175 BIO *fbio = BIO_new(BIO_f_buffer());
2176
2177 if (fbio == NULL) {
2178 BIO_printf(bio_err, "Unable to create BIO\n");
2179 goto shut;
2180 }
2181 BIO_push(fbio, sbio);
2182 /* Wait for multi-line response to end from LMTP or SMTP */
2183 do {
2184 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2185 } while (mbuf_len > 3 && mbuf[3] == '-');
2186 if (protohost == NULL)
2187 protohost = "mail.example.com";
2188 if (starttls_proto == (int)PROTO_LMTP)
2189 BIO_printf(fbio, "LHLO %s\r\n", protohost);
2190 else
2191 BIO_printf(fbio, "EHLO %s\r\n", protohost);
2192 (void)BIO_flush(fbio);
2193 /*
2194 * Wait for multi-line response to end LHLO LMTP or EHLO SMTP
2195 * response.
2196 */
2197 do {
2198 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2199 if (strstr(mbuf, "STARTTLS"))
2200 foundit = 1;
2201 } while (mbuf_len > 3 && mbuf[3] == '-');
2202 (void)BIO_flush(fbio);
2203 BIO_pop(fbio);
2204 BIO_free(fbio);
2205 if (!foundit)
2206 BIO_printf(bio_err,
2207 "Didn't find STARTTLS in server response,"
2208 " trying anyway...\n");
2209 BIO_printf(sbio, "STARTTLS\r\n");
2210 BIO_read(sbio, sbuf, BUFSIZZ);
2211 }
2212 break;
2213 case PROTO_POP3:
2214 {
2215 BIO_read(sbio, mbuf, BUFSIZZ);
2216 BIO_printf(sbio, "STLS\r\n");
2217 mbuf_len = BIO_read(sbio, sbuf, BUFSIZZ);
2218 if (mbuf_len < 0) {
2219 BIO_printf(bio_err, "BIO_read failed\n");
2220 goto end;
2221 }
2222 }
2223 break;
2224 case PROTO_IMAP:
2225 {
2226 int foundit = 0;
2227 BIO *fbio = BIO_new(BIO_f_buffer());
2228
2229 if (fbio == NULL) {
2230 BIO_printf(bio_err, "Unable to create BIO\n");
2231 goto shut;
2232 }
2233 BIO_push(fbio, sbio);
2234 BIO_gets(fbio, mbuf, BUFSIZZ);
2235 /* STARTTLS command requires CAPABILITY... */
2236 BIO_printf(fbio, ". CAPABILITY\r\n");
2237 (void)BIO_flush(fbio);
2238 /* wait for multi-line CAPABILITY response */
2239 do {
2240 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2241 if (strstr(mbuf, "STARTTLS"))
2242 foundit = 1;
2243 }
2244 while (mbuf_len > 3 && mbuf[0] != '.');
2245 (void)BIO_flush(fbio);
2246 BIO_pop(fbio);
2247 BIO_free(fbio);
2248 if (!foundit)
2249 BIO_printf(bio_err,
2250 "Didn't find STARTTLS in server response,"
2251 " trying anyway...\n");
2252 BIO_printf(sbio, ". STARTTLS\r\n");
2253 BIO_read(sbio, sbuf, BUFSIZZ);
2254 }
2255 break;
2256 case PROTO_FTP:
2257 {
2258 BIO *fbio = BIO_new(BIO_f_buffer());
2259
2260 if (fbio == NULL) {
2261 BIO_printf(bio_err, "Unable to create BIO\n");
2262 goto shut;
2263 }
2264 BIO_push(fbio, sbio);
2265 /* wait for multi-line response to end from FTP */
2266 do {
2267 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2268 }
2269 while (mbuf_len > 3 && (!isdigit(mbuf[0]) || !isdigit(mbuf[1]) || !isdigit(mbuf[2]) || mbuf[3] != ' '));
2270 (void)BIO_flush(fbio);
2271 BIO_pop(fbio);
2272 BIO_free(fbio);
2273 BIO_printf(sbio, "AUTH TLS\r\n");
2274 BIO_read(sbio, sbuf, BUFSIZZ);
2275 }
2276 break;
2277 case PROTO_XMPP:
2278 case PROTO_XMPP_SERVER:
2279 {
2280 int seen = 0;
2281 BIO_printf(sbio, "<stream:stream "
2282 "xmlns:stream='http://etherx.jabber.org/streams' "
2283 "xmlns='jabber:%s' to='%s' version='1.0'>",
2284 starttls_proto == PROTO_XMPP ? "client" : "server",
2285 protohost ? protohost : host);
2286 seen = BIO_read(sbio, mbuf, BUFSIZZ);
2287 if (seen < 0) {
2288 BIO_printf(bio_err, "BIO_read failed\n");
2289 goto end;
2290 }
2291 mbuf[seen] = '\0';
2292 while (!strstr
2293 (mbuf, "<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'")
2294 && !strstr(mbuf,
2295 "<starttls xmlns=\"urn:ietf:params:xml:ns:xmpp-tls\""))
2296 {
2297 seen = BIO_read(sbio, mbuf, BUFSIZZ);
2298
2299 if (seen <= 0)
2300 goto shut;
2301
2302 mbuf[seen] = '\0';
2303 }
2304 BIO_printf(sbio,
2305 "<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'/>");
2306 seen = BIO_read(sbio, sbuf, BUFSIZZ);
2307 if (seen < 0) {
2308 BIO_printf(bio_err, "BIO_read failed\n");
2309 goto shut;
2310 }
2311 sbuf[seen] = '\0';
2312 if (!strstr(sbuf, "<proceed"))
2313 goto shut;
2314 mbuf[0] = '\0';
2315 }
2316 break;
2317 case PROTO_TELNET:
2318 {
2319 static const unsigned char tls_do[] = {
2320 /* IAC DO START_TLS */
2321 255, 253, 46
2322 };
2323 static const unsigned char tls_will[] = {
2324 /* IAC WILL START_TLS */
2325 255, 251, 46
2326 };
2327 static const unsigned char tls_follows[] = {
2328 /* IAC SB START_TLS FOLLOWS IAC SE */
2329 255, 250, 46, 1, 255, 240
2330 };
2331 int bytes;
2332
2333 /* Telnet server should demand we issue START_TLS */
2334 bytes = BIO_read(sbio, mbuf, BUFSIZZ);
2335 if (bytes != 3 || memcmp(mbuf, tls_do, 3) != 0)
2336 goto shut;
2337 /* Agree to issue START_TLS and send the FOLLOWS sub-command */
2338 BIO_write(sbio, tls_will, 3);
2339 BIO_write(sbio, tls_follows, 6);
2340 (void)BIO_flush(sbio);
2341 /* Telnet server also sent the FOLLOWS sub-command */
2342 bytes = BIO_read(sbio, mbuf, BUFSIZZ);
2343 if (bytes != 6 || memcmp(mbuf, tls_follows, 6) != 0)
2344 goto shut;
2345 }
2346 break;
2347 case PROTO_CONNECT:
2348 /* Here we must use the connect string target host & port */
2349 if (!OSSL_HTTP_proxy_connect(sbio, thost, tport, proxyuser, proxypass,
2350 0 /* no timeout */, bio_err, prog))
2351 goto shut;
2352 break;
2353 case PROTO_IRC:
2354 {
2355 int numeric;
2356 BIO *fbio = BIO_new(BIO_f_buffer());
2357
2358 if (fbio == NULL) {
2359 BIO_printf(bio_err, "Unable to create BIO\n");
2360 goto end;
2361 }
2362 BIO_push(fbio, sbio);
2363 BIO_printf(fbio, "STARTTLS\r\n");
2364 (void)BIO_flush(fbio);
2365 width = SSL_get_fd(con) + 1;
2366
2367 do {
2368 numeric = 0;
2369
2370 FD_ZERO(&readfds);
2371 openssl_fdset(SSL_get_fd(con), &readfds);
2372 timeout.tv_sec = S_CLIENT_IRC_READ_TIMEOUT;
2373 timeout.tv_usec = 0;
2374 /*
2375 * If the IRCd doesn't respond within
2376 * S_CLIENT_IRC_READ_TIMEOUT seconds, assume
2377 * it doesn't support STARTTLS. Many IRCds
2378 * will not give _any_ sort of response to a
2379 * STARTTLS command when it's not supported.
2380 */
2381 if (!BIO_get_buffer_num_lines(fbio)
2382 && !BIO_pending(fbio)
2383 && !BIO_pending(sbio)
2384 && select(width, (void *)&readfds, NULL, NULL,
2385 &timeout) < 1) {
2386 BIO_printf(bio_err,
2387 "Timeout waiting for response (%d seconds).\n",
2388 S_CLIENT_IRC_READ_TIMEOUT);
2389 break;
2390 }
2391
2392 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2393 if (mbuf_len < 1 || sscanf(mbuf, "%*s %d", &numeric) != 1)
2394 break;
2395 /* :example.net 451 STARTTLS :You have not registered */
2396 /* :example.net 421 STARTTLS :Unknown command */
2397 if ((numeric == 451 || numeric == 421)
2398 && strstr(mbuf, "STARTTLS") != NULL) {
2399 BIO_printf(bio_err, "STARTTLS not supported: %s", mbuf);
2400 break;
2401 }
2402 if (numeric == 691) {
2403 BIO_printf(bio_err, "STARTTLS negotiation failed: ");
2404 ERR_print_errors(bio_err);
2405 break;
2406 }
2407 } while (numeric != 670);
2408
2409 (void)BIO_flush(fbio);
2410 BIO_pop(fbio);
2411 BIO_free(fbio);
2412 if (numeric != 670) {
2413 BIO_printf(bio_err, "Server does not support STARTTLS.\n");
2414 ret = 1;
2415 goto shut;
2416 }
2417 }
2418 break;
2419 case PROTO_MYSQL:
2420 {
2421 /* SSL request packet */
2422 static const unsigned char ssl_req[] = {
2423 /* payload_length, sequence_id */
2424 0x20, 0x00, 0x00, 0x01,
2425 /* payload */
2426 /* capability flags, CLIENT_SSL always set */
2427 0x85, 0xae, 0x7f, 0x00,
2428 /* max-packet size */
2429 0x00, 0x00, 0x00, 0x01,
2430 /* character set */
2431 0x21,
2432 /* string[23] reserved (all [0]) */
2433 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
2434 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
2435 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
2436 };
2437 int bytes = 0;
2438 int ssl_flg = 0x800;
2439 int pos;
2440 const unsigned char *packet = (const unsigned char *)sbuf;
2441
2442 /* Receiving Initial Handshake packet. */
2443 bytes = BIO_read(sbio, (void *)packet, BUFSIZZ);
2444 if (bytes < 0) {
2445 BIO_printf(bio_err, "BIO_read failed\n");
2446 goto shut;
2447 /* Packet length[3], Packet number[1] + minimum payload[17] */
2448 } else if (bytes < 21) {
2449 BIO_printf(bio_err, "MySQL packet too short.\n");
2450 goto shut;
2451 } else if (bytes != (4 + packet[0] +
2452 (packet[1] << 8) +
2453 (packet[2] << 16))) {
2454 BIO_printf(bio_err, "MySQL packet length does not match.\n");
2455 goto shut;
2456 /* protocol version[1] */
2457 } else if (packet[4] != 0xA) {
2458 BIO_printf(bio_err,
2459 "Only MySQL protocol version 10 is supported.\n");
2460 goto shut;
2461 }
2462
2463 pos = 5;
2464 /* server version[string+NULL] */
2465 for (;;) {
2466 if (pos >= bytes) {
2467 BIO_printf(bio_err, "Cannot confirm server version. ");
2468 goto shut;
2469 } else if (packet[pos++] == '\0') {
2470 break;
2471 }
2472 }
2473
2474 /* make sure we have at least 15 bytes left in the packet */
2475 if (pos + 15 > bytes) {
2476 BIO_printf(bio_err,
2477 "MySQL server handshake packet is broken.\n");
2478 goto shut;
2479 }
2480
2481 pos += 12; /* skip over conn id[4] + SALT[8] */
2482 if (packet[pos++] != '\0') { /* verify filler */
2483 BIO_printf(bio_err,
2484 "MySQL packet is broken.\n");
2485 goto shut;
2486 }
2487
2488 /* capability flags[2] */
2489 if (!((packet[pos] + (packet[pos + 1] << 8)) & ssl_flg)) {
2490 BIO_printf(bio_err, "MySQL server does not support SSL.\n");
2491 goto shut;
2492 }
2493
2494 /* Sending SSL Handshake packet. */
2495 BIO_write(sbio, ssl_req, sizeof(ssl_req));
2496 (void)BIO_flush(sbio);
2497 }
2498 break;
2499 case PROTO_POSTGRES:
2500 {
2501 static const unsigned char ssl_request[] = {
2502 /* Length SSLRequest */
2503 0, 0, 0, 8, 4, 210, 22, 47
2504 };
2505 int bytes;
2506
2507 /* Send SSLRequest packet */
2508 BIO_write(sbio, ssl_request, 8);
2509 (void)BIO_flush(sbio);
2510
2511 /* Reply will be a single S if SSL is enabled */
2512 bytes = BIO_read(sbio, sbuf, BUFSIZZ);
2513 if (bytes != 1 || sbuf[0] != 'S')
2514 goto shut;
2515 }
2516 break;
2517 case PROTO_NNTP:
2518 {
2519 int foundit = 0;
2520 BIO *fbio = BIO_new(BIO_f_buffer());
2521
2522 if (fbio == NULL) {
2523 BIO_printf(bio_err, "Unable to create BIO\n");
2524 goto end;
2525 }
2526 BIO_push(fbio, sbio);
2527 BIO_gets(fbio, mbuf, BUFSIZZ);
2528 /* STARTTLS command requires CAPABILITIES... */
2529 BIO_printf(fbio, "CAPABILITIES\r\n");
2530 (void)BIO_flush(fbio);
2531 BIO_gets(fbio, mbuf, BUFSIZZ);
2532 /* no point in trying to parse the CAPABILITIES response if there is none */
2533 if (strstr(mbuf, "101") != NULL) {
2534 /* wait for multi-line CAPABILITIES response */
2535 do {
2536 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2537 if (strstr(mbuf, "STARTTLS"))
2538 foundit = 1;
2539 } while (mbuf_len > 1 && mbuf[0] != '.');
2540 }
2541 (void)BIO_flush(fbio);
2542 BIO_pop(fbio);
2543 BIO_free(fbio);
2544 if (!foundit)
2545 BIO_printf(bio_err,
2546 "Didn't find STARTTLS in server response,"
2547 " trying anyway...\n");
2548 BIO_printf(sbio, "STARTTLS\r\n");
2549 mbuf_len = BIO_read(sbio, mbuf, BUFSIZZ);
2550 if (mbuf_len < 0) {
2551 BIO_printf(bio_err, "BIO_read failed\n");
2552 goto end;
2553 }
2554 mbuf[mbuf_len] = '\0';
2555 if (strstr(mbuf, "382") == NULL) {
2556 BIO_printf(bio_err, "STARTTLS failed: %s", mbuf);
2557 goto shut;
2558 }
2559 }
2560 break;
2561 case PROTO_SIEVE:
2562 {
2563 int foundit = 0;
2564 BIO *fbio = BIO_new(BIO_f_buffer());
2565
2566 if (fbio == NULL) {
2567 BIO_printf(bio_err, "Unable to create BIO\n");
2568 goto end;
2569 }
2570 BIO_push(fbio, sbio);
2571 /* wait for multi-line response to end from Sieve */
2572 do {
2573 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2574 /*
2575 * According to RFC 5804 § 1.7, capability
2576 * is case-insensitive, make it uppercase
2577 */
2578 if (mbuf_len > 1 && mbuf[0] == '"') {
2579 make_uppercase(mbuf);
2580 if (strncmp(mbuf, "\"STARTTLS\"", 10) == 0)
2581 foundit = 1;
2582 }
2583 } while (mbuf_len > 1 && mbuf[0] == '"');
2584 (void)BIO_flush(fbio);
2585 BIO_pop(fbio);
2586 BIO_free(fbio);
2587 if (!foundit)
2588 BIO_printf(bio_err,
2589 "Didn't find STARTTLS in server response,"
2590 " trying anyway...\n");
2591 BIO_printf(sbio, "STARTTLS\r\n");
2592 mbuf_len = BIO_read(sbio, mbuf, BUFSIZZ);
2593 if (mbuf_len < 0) {
2594 BIO_printf(bio_err, "BIO_read failed\n");
2595 goto end;
2596 }
2597 mbuf[mbuf_len] = '\0';
2598 if (mbuf_len < 2) {
2599 BIO_printf(bio_err, "STARTTLS failed: %s", mbuf);
2600 goto shut;
2601 }
2602 /*
2603 * According to RFC 5804 § 2.2, response codes are case-
2604 * insensitive, make it uppercase but preserve the response.
2605 */
2606 strncpy(sbuf, mbuf, 2);
2607 make_uppercase(sbuf);
2608 if (strncmp(sbuf, "OK", 2) != 0) {
2609 BIO_printf(bio_err, "STARTTLS not supported: %s", mbuf);
2610 goto shut;
2611 }
2612 }
2613 break;
2614 case PROTO_LDAP:
2615 {
2616 /* StartTLS Operation according to RFC 4511 */
2617 static char ldap_tls_genconf[] = "asn1=SEQUENCE:LDAPMessage\n"
2618 "[LDAPMessage]\n"
2619 "messageID=INTEGER:1\n"
2620 "extendedReq=EXPLICIT:23A,IMPLICIT:0C,"
2621 "FORMAT:ASCII,OCT:1.3.6.1.4.1.1466.20037\n";
2622 long errline = -1;
2623 char *genstr = NULL;
2624 int result = -1;
2625 ASN1_TYPE *atyp = NULL;
2626 BIO *ldapbio = BIO_new(BIO_s_mem());
2627 CONF *cnf = NCONF_new(NULL);
2628
2629 if (ldapbio == NULL || cnf == NULL) {
2630 BIO_free(ldapbio);
2631 NCONF_free(cnf);
2632 goto end;
2633 }
2634 BIO_puts(ldapbio, ldap_tls_genconf);
2635 if (NCONF_load_bio(cnf, ldapbio, &errline) <= 0) {
2636 BIO_free(ldapbio);
2637 NCONF_free(cnf);
2638 if (errline <= 0) {
2639 BIO_printf(bio_err, "NCONF_load_bio failed\n");
2640 goto end;
2641 } else {
2642 BIO_printf(bio_err, "Error on line %ld\n", errline);
2643 goto end;
2644 }
2645 }
2646 BIO_free(ldapbio);
2647 genstr = NCONF_get_string(cnf, "default", "asn1");
2648 if (genstr == NULL) {
2649 NCONF_free(cnf);
2650 BIO_printf(bio_err, "NCONF_get_string failed\n");
2651 goto end;
2652 }
2653 atyp = ASN1_generate_nconf(genstr, cnf);
2654 if (atyp == NULL) {
2655 NCONF_free(cnf);
2656 BIO_printf(bio_err, "ASN1_generate_nconf failed\n");
2657 goto end;
2658 }
2659 NCONF_free(cnf);
2660
2661 /* Send SSLRequest packet */
2662 BIO_write(sbio, atyp->value.sequence->data,
2663 atyp->value.sequence->length);
2664 (void)BIO_flush(sbio);
2665 ASN1_TYPE_free(atyp);
2666
2667 mbuf_len = BIO_read(sbio, mbuf, BUFSIZZ);
2668 if (mbuf_len < 0) {
2669 BIO_printf(bio_err, "BIO_read failed\n");
2670 goto end;
2671 }
2672 result = ldap_ExtendedResponse_parse(mbuf, mbuf_len);
2673 if (result < 0) {
2674 BIO_printf(bio_err, "ldap_ExtendedResponse_parse failed\n");
2675 goto shut;
2676 } else if (result > 0) {
2677 BIO_printf(bio_err, "STARTTLS failed, LDAP Result Code: %i\n",
2678 result);
2679 goto shut;
2680 }
2681 mbuf_len = 0;
2682 }
2683 break;
2684 }
2685
2686 if (early_data_file != NULL
2687 && ((SSL_get0_session(con) != NULL
2688 && SSL_SESSION_get_max_early_data(SSL_get0_session(con)) > 0)
2689 || (psksess != NULL
2690 && SSL_SESSION_get_max_early_data(psksess) > 0))) {
2691 BIO *edfile = BIO_new_file(early_data_file, "r");
2692 size_t readbytes, writtenbytes;
2693 int finish = 0;
2694
2695 if (edfile == NULL) {
2696 BIO_printf(bio_err, "Cannot open early data file\n");
2697 goto shut;
2698 }
2699
2700 while (!finish) {
2701 if (!BIO_read_ex(edfile, cbuf, BUFSIZZ, &readbytes))
2702 finish = 1;
2703
2704 while (!SSL_write_early_data(con, cbuf, readbytes, &writtenbytes)) {
2705 switch (SSL_get_error(con, 0)) {
2706 case SSL_ERROR_WANT_WRITE:
2707 case SSL_ERROR_WANT_ASYNC:
2708 case SSL_ERROR_WANT_READ:
2709 /* Just keep trying - busy waiting */
2710 continue;
2711 default:
2712 BIO_printf(bio_err, "Error writing early data\n");
2713 BIO_free(edfile);
2714 ERR_print_errors(bio_err);
2715 goto shut;
2716 }
2717 }
2718 }
2719
2720 BIO_free(edfile);
2721 }
2722
2723 for (;;) {
2724 FD_ZERO(&readfds);
2725 FD_ZERO(&writefds);
2726
2727 if (SSL_is_dtls(con) && DTLSv1_get_timeout(con, &timeout))
2728 timeoutp = &timeout;
2729 else
2730 timeoutp = NULL;
2731
2732 if (!SSL_is_init_finished(con) && SSL_total_renegotiations(con) == 0
2733 && SSL_get_key_update_type(con) == SSL_KEY_UPDATE_NONE) {
2734 in_init = 1;
2735 tty_on = 0;
2736 } else {
2737 tty_on = 1;
2738 if (in_init) {
2739 in_init = 0;
2740 if (c_brief) {
2741 BIO_puts(bio_err, "CONNECTION ESTABLISHED\n");
2742 print_ssl_summary(con);
2743 }
2744
2745 print_stuff(bio_c_out, con, full_log);
2746 if (full_log > 0)
2747 full_log--;
2748
2749 if (starttls_proto) {
2750 BIO_write(bio_err, mbuf, mbuf_len);
2751 /* We don't need to know any more */
2752 if (!reconnect)
2753 starttls_proto = PROTO_OFF;
2754 }
2755
2756 if (reconnect) {
2757 reconnect--;
2758 BIO_printf(bio_c_out,
2759 "drop connection and then reconnect\n");
2760 do_ssl_shutdown(con);
2761 SSL_set_connect_state(con);
2762 BIO_closesocket(SSL_get_fd(con));
2763 goto re_start;
2764 }
2765 }
2766 }
2767
2768 ssl_pending = read_ssl && SSL_has_pending(con);
2769
2770 if (!ssl_pending) {
2771 #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS)
2772 if (tty_on) {
2773 /*
2774 * Note that select() returns when read _would not block_,
2775 * and EOF satisfies that. To avoid a CPU-hogging loop,
2776 * set the flag so we exit.
2777 */
2778 if (read_tty && !at_eof)
2779 openssl_fdset(fileno_stdin(), &readfds);
2780 #if !defined(OPENSSL_SYS_VMS)
2781 if (write_tty)
2782 openssl_fdset(fileno_stdout(), &writefds);
2783 #endif
2784 }
2785 if (read_ssl)
2786 openssl_fdset(SSL_get_fd(con), &readfds);
2787 if (write_ssl)
2788 openssl_fdset(SSL_get_fd(con), &writefds);
2789 #else
2790 if (!tty_on || !write_tty) {
2791 if (read_ssl)
2792 openssl_fdset(SSL_get_fd(con), &readfds);
2793 if (write_ssl)
2794 openssl_fdset(SSL_get_fd(con), &writefds);
2795 }
2796 #endif
2797
2798 /*
2799 * Note: under VMS with SOCKETSHR the second parameter is
2800 * currently of type (int *) whereas under other systems it is
2801 * (void *) if you don't have a cast it will choke the compiler:
2802 * if you do have a cast then you can either go for (int *) or
2803 * (void *).
2804 */
2805 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
2806 /*
2807 * Under Windows/DOS we make the assumption that we can always
2808 * write to the tty: therefore if we need to write to the tty we
2809 * just fall through. Otherwise we timeout the select every
2810 * second and see if there are any keypresses. Note: this is a
2811 * hack, in a proper Windows application we wouldn't do this.
2812 */
2813 i = 0;
2814 if (!write_tty) {
2815 if (read_tty) {
2816 tv.tv_sec = 1;
2817 tv.tv_usec = 0;
2818 i = select(width, (void *)&readfds, (void *)&writefds,
2819 NULL, &tv);
2820 if (!i && (!has_stdin_waiting() || !read_tty))
2821 continue;
2822 } else
2823 i = select(width, (void *)&readfds, (void *)&writefds,
2824 NULL, timeoutp);
2825 }
2826 #else
2827 i = select(width, (void *)&readfds, (void *)&writefds,
2828 NULL, timeoutp);
2829 #endif
2830 if (i < 0) {
2831 BIO_printf(bio_err, "bad select %d\n",
2832 get_last_socket_error());
2833 goto shut;
2834 }
2835 }
2836
2837 if (SSL_is_dtls(con) && DTLSv1_handle_timeout(con) > 0)
2838 BIO_printf(bio_err, "TIMEOUT occurred\n");
2839
2840 if (!ssl_pending && FD_ISSET(SSL_get_fd(con), &writefds)) {
2841 k = SSL_write(con, &(cbuf[cbuf_off]), (unsigned int)cbuf_len);
2842 switch (SSL_get_error(con, k)) {
2843 case SSL_ERROR_NONE:
2844 cbuf_off += k;
2845 cbuf_len -= k;
2846 if (k <= 0)
2847 goto end;
2848 /* we have done a write(con,NULL,0); */
2849 if (cbuf_len <= 0) {
2850 read_tty = 1;
2851 write_ssl = 0;
2852 } else { /* if (cbuf_len > 0) */
2853
2854 read_tty = 0;
2855 write_ssl = 1;
2856 }
2857 break;
2858 case SSL_ERROR_WANT_WRITE:
2859 BIO_printf(bio_c_out, "write W BLOCK\n");
2860 write_ssl = 1;
2861 read_tty = 0;
2862 break;
2863 case SSL_ERROR_WANT_ASYNC:
2864 BIO_printf(bio_c_out, "write A BLOCK\n");
2865 wait_for_async(con);
2866 write_ssl = 1;
2867 read_tty = 0;
2868 break;
2869 case SSL_ERROR_WANT_READ:
2870 BIO_printf(bio_c_out, "write R BLOCK\n");
2871 write_tty = 0;
2872 read_ssl = 1;
2873 write_ssl = 0;
2874 break;
2875 case SSL_ERROR_WANT_X509_LOOKUP:
2876 BIO_printf(bio_c_out, "write X BLOCK\n");
2877 break;
2878 case SSL_ERROR_ZERO_RETURN:
2879 if (cbuf_len != 0) {
2880 BIO_printf(bio_c_out, "shutdown\n");
2881 ret = 0;
2882 goto shut;
2883 } else {
2884 read_tty = 1;
2885 write_ssl = 0;
2886 break;
2887 }
2888
2889 case SSL_ERROR_SYSCALL:
2890 if ((k != 0) || (cbuf_len != 0)) {
2891 BIO_printf(bio_err, "write:errno=%d\n",
2892 get_last_socket_error());
2893 goto shut;
2894 } else {
2895 read_tty = 1;
2896 write_ssl = 0;
2897 }
2898 break;
2899 case SSL_ERROR_WANT_ASYNC_JOB:
2900 /* This shouldn't ever happen in s_client - treat as an error */
2901 case SSL_ERROR_SSL:
2902 ERR_print_errors(bio_err);
2903 goto shut;
2904 }
2905 }
2906 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_VMS)
2907 /* Assume Windows/DOS/BeOS can always write */
2908 else if (!ssl_pending && write_tty)
2909 #else
2910 else if (!ssl_pending && FD_ISSET(fileno_stdout(), &writefds))
2911 #endif
2912 {
2913 #ifdef CHARSET_EBCDIC
2914 ascii2ebcdic(&(sbuf[sbuf_off]), &(sbuf[sbuf_off]), sbuf_len);
2915 #endif
2916 i = raw_write_stdout(&(sbuf[sbuf_off]), sbuf_len);
2917
2918 if (i <= 0) {
2919 BIO_printf(bio_c_out, "DONE\n");
2920 ret = 0;
2921 goto shut;
2922 }
2923
2924 sbuf_len -= i;
2925 sbuf_off += i;
2926 if (sbuf_len <= 0) {
2927 read_ssl = 1;
2928 write_tty = 0;
2929 }
2930 } else if (ssl_pending || FD_ISSET(SSL_get_fd(con), &readfds)) {
2931 #ifdef RENEG
2932 {
2933 static int iiii;
2934 if (++iiii == 52) {
2935 SSL_renegotiate(con);
2936 iiii = 0;
2937 }
2938 }
2939 #endif
2940 k = SSL_read(con, sbuf, 1024 /* BUFSIZZ */ );
2941
2942 switch (SSL_get_error(con, k)) {
2943 case SSL_ERROR_NONE:
2944 if (k <= 0)
2945 goto end;
2946 sbuf_off = 0;
2947 sbuf_len = k;
2948
2949 read_ssl = 0;
2950 write_tty = 1;
2951 break;
2952 case SSL_ERROR_WANT_ASYNC:
2953 BIO_printf(bio_c_out, "read A BLOCK\n");
2954 wait_for_async(con);
2955 write_tty = 0;
2956 read_ssl = 1;
2957 if ((read_tty == 0) && (write_ssl == 0))
2958 write_ssl = 1;
2959 break;
2960 case SSL_ERROR_WANT_WRITE:
2961 BIO_printf(bio_c_out, "read W BLOCK\n");
2962 write_ssl = 1;
2963 read_tty = 0;
2964 break;
2965 case SSL_ERROR_WANT_READ:
2966 BIO_printf(bio_c_out, "read R BLOCK\n");
2967 write_tty = 0;
2968 read_ssl = 1;
2969 if ((read_tty == 0) && (write_ssl == 0))
2970 write_ssl = 1;
2971 break;
2972 case SSL_ERROR_WANT_X509_LOOKUP:
2973 BIO_printf(bio_c_out, "read X BLOCK\n");
2974 break;
2975 case SSL_ERROR_SYSCALL:
2976 ret = get_last_socket_error();
2977 if (c_brief)
2978 BIO_puts(bio_err, "CONNECTION CLOSED BY SERVER\n");
2979 else
2980 BIO_printf(bio_err, "read:errno=%d\n", ret);
2981 goto shut;
2982 case SSL_ERROR_ZERO_RETURN:
2983 BIO_printf(bio_c_out, "closed\n");
2984 ret = 0;
2985 goto shut;
2986 case SSL_ERROR_WANT_ASYNC_JOB:
2987 /* This shouldn't ever happen in s_client. Treat as an error */
2988 case SSL_ERROR_SSL:
2989 ERR_print_errors(bio_err);
2990 goto shut;
2991 }
2992 }
2993 /* OPENSSL_SYS_MSDOS includes OPENSSL_SYS_WINDOWS */
2994 #if defined(OPENSSL_SYS_MSDOS)
2995 else if (has_stdin_waiting())
2996 #else
2997 else if (FD_ISSET(fileno_stdin(), &readfds))
2998 #endif
2999 {
3000 if (crlf) {
3001 int j, lf_num;
3002
3003 i = raw_read_stdin(cbuf, BUFSIZZ / 2);
3004 lf_num = 0;
3005 /* both loops are skipped when i <= 0 */
3006 for (j = 0; j < i; j++)
3007 if (cbuf[j] == '\n')
3008 lf_num++;
3009 for (j = i - 1; j >= 0; j--) {
3010 cbuf[j + lf_num] = cbuf[j];
3011 if (cbuf[j] == '\n') {
3012 lf_num--;
3013 i++;
3014 cbuf[j + lf_num] = '\r';
3015 }
3016 }
3017 assert(lf_num == 0);
3018 } else
3019 i = raw_read_stdin(cbuf, BUFSIZZ);
3020 #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS)
3021 if (i == 0)
3022 at_eof = 1;
3023 #endif
3024
3025 if ((!c_ign_eof) && ((i <= 0) || (cbuf[0] == 'Q' && cmdletters))) {
3026 BIO_printf(bio_err, "DONE\n");
3027 ret = 0;
3028 goto shut;
3029 }
3030
3031 if ((!c_ign_eof) && (cbuf[0] == 'R' && cmdletters)) {
3032 BIO_printf(bio_err, "RENEGOTIATING\n");
3033 SSL_renegotiate(con);
3034 cbuf_len = 0;
3035 } else if (!c_ign_eof && (cbuf[0] == 'K' || cbuf[0] == 'k' )
3036 && cmdletters) {
3037 BIO_printf(bio_err, "KEYUPDATE\n");
3038 SSL_key_update(con,
3039 cbuf[0] == 'K' ? SSL_KEY_UPDATE_REQUESTED
3040 : SSL_KEY_UPDATE_NOT_REQUESTED);
3041 cbuf_len = 0;
3042 } else {
3043 cbuf_len = i;
3044 cbuf_off = 0;
3045 #ifdef CHARSET_EBCDIC
3046 ebcdic2ascii(cbuf, cbuf, i);
3047 #endif
3048 }
3049
3050 write_ssl = 1;
3051 read_tty = 0;
3052 }
3053 }
3054
3055 shut:
3056 if (in_init)
3057 print_stuff(bio_c_out, con, full_log);
3058 do_ssl_shutdown(con);
3059
3060 /*
3061 * If we ended with an alert being sent, but still with data in the
3062 * network buffer to be read, then calling BIO_closesocket() will
3063 * result in a TCP-RST being sent. On some platforms (notably
3064 * Windows) then this will result in the peer immediately abandoning
3065 * the connection including any buffered alert data before it has
3066 * had a chance to be read. Shutting down the sending side first,
3067 * and then closing the socket sends TCP-FIN first followed by
3068 * TCP-RST. This seems to allow the peer to read the alert data.
3069 */
3070 shutdown(SSL_get_fd(con), 1); /* SHUT_WR */
3071 /*
3072 * We just said we have nothing else to say, but it doesn't mean that
3073 * the other side has nothing. It's even recommended to consume incoming
3074 * data. [In testing context this ensures that alerts are passed on...]
3075 */
3076 timeout.tv_sec = 0;
3077 timeout.tv_usec = 500000; /* some extreme round-trip */
3078 do {
3079 FD_ZERO(&readfds);
3080 openssl_fdset(sock, &readfds);
3081 } while (select(sock + 1, &readfds, NULL, NULL, &timeout) > 0
3082 && BIO_read(sbio, sbuf, BUFSIZZ) > 0);
3083
3084 BIO_closesocket(SSL_get_fd(con));
3085 end:
3086 if (con != NULL) {
3087 if (prexit != 0)
3088 print_stuff(bio_c_out, con, 1);
3089 SSL_free(con);
3090 }
3091 SSL_SESSION_free(psksess);
3092 #if !defined(OPENSSL_NO_NEXTPROTONEG)
3093 OPENSSL_free(next_proto.data);
3094 #endif
3095 SSL_CTX_free(ctx);
3096 set_keylog_file(NULL, NULL);
3097 X509_free(cert);
3098 sk_X509_CRL_pop_free(crls, X509_CRL_free);
3099 EVP_PKEY_free(key);
3100 sk_X509_pop_free(chain, X509_free);
3101 OPENSSL_free(pass);
3102 #ifndef OPENSSL_NO_SRP
3103 OPENSSL_free(srp_arg.srppassin);
3104 #endif
3105 OPENSSL_free(sname_alloc);
3106 OPENSSL_free(connectstr);
3107 OPENSSL_free(bindstr);
3108 OPENSSL_free(bindhost);
3109 OPENSSL_free(bindport);
3110 OPENSSL_free(host);
3111 OPENSSL_free(port);
3112 OPENSSL_free(thost);
3113 OPENSSL_free(tport);
3114 X509_VERIFY_PARAM_free(vpm);
3115 ssl_excert_free(exc);
3116 sk_OPENSSL_STRING_free(ssl_args);
3117 sk_OPENSSL_STRING_free(dane_tlsa_rrset);
3118 SSL_CONF_CTX_free(cctx);
3119 OPENSSL_clear_free(cbuf, BUFSIZZ);
3120 OPENSSL_clear_free(sbuf, BUFSIZZ);
3121 OPENSSL_clear_free(mbuf, BUFSIZZ);
3122 clear_free(proxypass);
3123 release_engine(e);
3124 BIO_free(bio_c_out);
3125 bio_c_out = NULL;
3126 BIO_free(bio_c_msg);
3127 bio_c_msg = NULL;
3128 return ret;
3129 }
3130
print_stuff(BIO * bio,SSL * s,int full)3131 static void print_stuff(BIO *bio, SSL *s, int full)
3132 {
3133 X509 *peer = NULL;
3134 STACK_OF(X509) *sk;
3135 const SSL_CIPHER *c;
3136 EVP_PKEY *public_key;
3137 int i, istls13 = (SSL_version(s) == TLS1_3_VERSION);
3138 long verify_result;
3139 #ifndef OPENSSL_NO_COMP
3140 const COMP_METHOD *comp, *expansion;
3141 #endif
3142 unsigned char *exportedkeymat;
3143 #ifndef OPENSSL_NO_CT
3144 const SSL_CTX *ctx = SSL_get_SSL_CTX(s);
3145 #endif
3146
3147 if (full) {
3148 int got_a_chain = 0;
3149
3150 sk = SSL_get_peer_cert_chain(s);
3151 if (sk != NULL) {
3152 got_a_chain = 1;
3153
3154 BIO_printf(bio, "---\nCertificate chain\n");
3155 for (i = 0; i < sk_X509_num(sk); i++) {
3156 BIO_printf(bio, "%2d s:", i);
3157 X509_NAME_print_ex(bio, X509_get_subject_name(sk_X509_value(sk, i)), 0, get_nameopt());
3158 BIO_puts(bio, "\n");
3159 BIO_printf(bio, " i:");
3160 X509_NAME_print_ex(bio, X509_get_issuer_name(sk_X509_value(sk, i)), 0, get_nameopt());
3161 BIO_puts(bio, "\n");
3162 public_key = X509_get_pubkey(sk_X509_value(sk, i));
3163 if (public_key != NULL) {
3164 BIO_printf(bio, " a:PKEY: %s, %d (bit); sigalg: %s\n",
3165 OBJ_nid2sn(EVP_PKEY_get_base_id(public_key)),
3166 EVP_PKEY_get_bits(public_key),
3167 OBJ_nid2sn(X509_get_signature_nid(sk_X509_value(sk, i))));
3168 EVP_PKEY_free(public_key);
3169 }
3170 BIO_printf(bio, " v:NotBefore: ");
3171 ASN1_TIME_print(bio, X509_get0_notBefore(sk_X509_value(sk, i)));
3172 BIO_printf(bio, "; NotAfter: ");
3173 ASN1_TIME_print(bio, X509_get0_notAfter(sk_X509_value(sk, i)));
3174 BIO_puts(bio, "\n");
3175 if (c_showcerts)
3176 PEM_write_bio_X509(bio, sk_X509_value(sk, i));
3177 }
3178 }
3179
3180 BIO_printf(bio, "---\n");
3181 peer = SSL_get0_peer_certificate(s);
3182 if (peer != NULL) {
3183 BIO_printf(bio, "Server certificate\n");
3184
3185 /* Redundant if we showed the whole chain */
3186 if (!(c_showcerts && got_a_chain))
3187 PEM_write_bio_X509(bio, peer);
3188 dump_cert_text(bio, peer);
3189 } else {
3190 BIO_printf(bio, "no peer certificate available\n");
3191 }
3192 print_ca_names(bio, s);
3193
3194 ssl_print_sigalgs(bio, s);
3195 ssl_print_tmp_key(bio, s);
3196
3197 #ifndef OPENSSL_NO_CT
3198 /*
3199 * When the SSL session is anonymous, or resumed via an abbreviated
3200 * handshake, no SCTs are provided as part of the handshake. While in
3201 * a resumed session SCTs may be present in the session's certificate,
3202 * no callbacks are invoked to revalidate these, and in any case that
3203 * set of SCTs may be incomplete. Thus it makes little sense to
3204 * attempt to display SCTs from a resumed session's certificate, and of
3205 * course none are associated with an anonymous peer.
3206 */
3207 if (peer != NULL && !SSL_session_reused(s) && SSL_ct_is_enabled(s)) {
3208 const STACK_OF(SCT) *scts = SSL_get0_peer_scts(s);
3209 int sct_count = scts != NULL ? sk_SCT_num(scts) : 0;
3210
3211 BIO_printf(bio, "---\nSCTs present (%i)\n", sct_count);
3212 if (sct_count > 0) {
3213 const CTLOG_STORE *log_store = SSL_CTX_get0_ctlog_store(ctx);
3214
3215 BIO_printf(bio, "---\n");
3216 for (i = 0; i < sct_count; ++i) {
3217 SCT *sct = sk_SCT_value(scts, i);
3218
3219 BIO_printf(bio, "SCT validation status: %s\n",
3220 SCT_validation_status_string(sct));
3221 SCT_print(sct, bio, 0, log_store);
3222 if (i < sct_count - 1)
3223 BIO_printf(bio, "\n---\n");
3224 }
3225 BIO_printf(bio, "\n");
3226 }
3227 }
3228 #endif
3229
3230 BIO_printf(bio,
3231 "---\nSSL handshake has read %ju bytes "
3232 "and written %ju bytes\n",
3233 BIO_number_read(SSL_get_rbio(s)),
3234 BIO_number_written(SSL_get_wbio(s)));
3235 }
3236 print_verify_detail(s, bio);
3237 BIO_printf(bio, (SSL_session_reused(s) ? "---\nReused, " : "---\nNew, "));
3238 c = SSL_get_current_cipher(s);
3239 BIO_printf(bio, "%s, Cipher is %s\n",
3240 SSL_CIPHER_get_version(c), SSL_CIPHER_get_name(c));
3241 if (peer != NULL) {
3242 EVP_PKEY *pktmp;
3243
3244 pktmp = X509_get0_pubkey(peer);
3245 BIO_printf(bio, "Server public key is %d bit\n",
3246 EVP_PKEY_get_bits(pktmp));
3247 }
3248 BIO_printf(bio, "Secure Renegotiation IS%s supported\n",
3249 SSL_get_secure_renegotiation_support(s) ? "" : " NOT");
3250 #ifndef OPENSSL_NO_COMP
3251 comp = SSL_get_current_compression(s);
3252 expansion = SSL_get_current_expansion(s);
3253 BIO_printf(bio, "Compression: %s\n",
3254 comp ? SSL_COMP_get_name(comp) : "NONE");
3255 BIO_printf(bio, "Expansion: %s\n",
3256 expansion ? SSL_COMP_get_name(expansion) : "NONE");
3257 #endif
3258 #ifndef OPENSSL_NO_KTLS
3259 if (BIO_get_ktls_send(SSL_get_wbio(s)))
3260 BIO_printf(bio_err, "Using Kernel TLS for sending\n");
3261 if (BIO_get_ktls_recv(SSL_get_rbio(s)))
3262 BIO_printf(bio_err, "Using Kernel TLS for receiving\n");
3263 #endif
3264
3265 if (OSSL_TRACE_ENABLED(TLS)) {
3266 /* Print out local port of connection: useful for debugging */
3267 int sock;
3268 union BIO_sock_info_u info;
3269
3270 sock = SSL_get_fd(s);
3271 if ((info.addr = BIO_ADDR_new()) != NULL
3272 && BIO_sock_info(sock, BIO_SOCK_INFO_ADDRESS, &info)) {
3273 BIO_printf(bio_c_out, "LOCAL PORT is %u\n",
3274 ntohs(BIO_ADDR_rawport(info.addr)));
3275 }
3276 BIO_ADDR_free(info.addr);
3277 }
3278
3279 #if !defined(OPENSSL_NO_NEXTPROTONEG)
3280 if (next_proto.status != -1) {
3281 const unsigned char *proto;
3282 unsigned int proto_len;
3283 SSL_get0_next_proto_negotiated(s, &proto, &proto_len);
3284 BIO_printf(bio, "Next protocol: (%d) ", next_proto.status);
3285 BIO_write(bio, proto, proto_len);
3286 BIO_write(bio, "\n", 1);
3287 }
3288 #endif
3289 {
3290 const unsigned char *proto;
3291 unsigned int proto_len;
3292 SSL_get0_alpn_selected(s, &proto, &proto_len);
3293 if (proto_len > 0) {
3294 BIO_printf(bio, "ALPN protocol: ");
3295 BIO_write(bio, proto, proto_len);
3296 BIO_write(bio, "\n", 1);
3297 } else
3298 BIO_printf(bio, "No ALPN negotiated\n");
3299 }
3300
3301 #ifndef OPENSSL_NO_SRTP
3302 {
3303 SRTP_PROTECTION_PROFILE *srtp_profile =
3304 SSL_get_selected_srtp_profile(s);
3305
3306 if (srtp_profile)
3307 BIO_printf(bio, "SRTP Extension negotiated, profile=%s\n",
3308 srtp_profile->name);
3309 }
3310 #endif
3311
3312 if (istls13) {
3313 switch (SSL_get_early_data_status(s)) {
3314 case SSL_EARLY_DATA_NOT_SENT:
3315 BIO_printf(bio, "Early data was not sent\n");
3316 break;
3317
3318 case SSL_EARLY_DATA_REJECTED:
3319 BIO_printf(bio, "Early data was rejected\n");
3320 break;
3321
3322 case SSL_EARLY_DATA_ACCEPTED:
3323 BIO_printf(bio, "Early data was accepted\n");
3324 break;
3325
3326 }
3327
3328 /*
3329 * We also print the verify results when we dump session information,
3330 * but in TLSv1.3 we may not get that right away (or at all) depending
3331 * on when we get a NewSessionTicket. Therefore we print it now as well.
3332 */
3333 verify_result = SSL_get_verify_result(s);
3334 BIO_printf(bio, "Verify return code: %ld (%s)\n", verify_result,
3335 X509_verify_cert_error_string(verify_result));
3336 } else {
3337 /* In TLSv1.3 we do this on arrival of a NewSessionTicket */
3338 SSL_SESSION_print(bio, SSL_get_session(s));
3339 }
3340
3341 if (SSL_get_session(s) != NULL && keymatexportlabel != NULL) {
3342 BIO_printf(bio, "Keying material exporter:\n");
3343 BIO_printf(bio, " Label: '%s'\n", keymatexportlabel);
3344 BIO_printf(bio, " Length: %i bytes\n", keymatexportlen);
3345 exportedkeymat = app_malloc(keymatexportlen, "export key");
3346 if (SSL_export_keying_material(s, exportedkeymat,
3347 keymatexportlen,
3348 keymatexportlabel,
3349 strlen(keymatexportlabel),
3350 NULL, 0, 0) <= 0) {
3351 BIO_printf(bio, " Error\n");
3352 } else {
3353 BIO_printf(bio, " Keying material: ");
3354 for (i = 0; i < keymatexportlen; i++)
3355 BIO_printf(bio, "%02X", exportedkeymat[i]);
3356 BIO_printf(bio, "\n");
3357 }
3358 OPENSSL_free(exportedkeymat);
3359 }
3360 BIO_printf(bio, "---\n");
3361 /* flush, or debugging output gets mixed with http response */
3362 (void)BIO_flush(bio);
3363 }
3364
3365 # ifndef OPENSSL_NO_OCSP
ocsp_resp_cb(SSL * s,void * arg)3366 static int ocsp_resp_cb(SSL *s, void *arg)
3367 {
3368 const unsigned char *p;
3369 int len;
3370 OCSP_RESPONSE *rsp;
3371 len = SSL_get_tlsext_status_ocsp_resp(s, &p);
3372 BIO_puts(arg, "OCSP response: ");
3373 if (p == NULL) {
3374 BIO_puts(arg, "no response sent\n");
3375 return 1;
3376 }
3377 rsp = d2i_OCSP_RESPONSE(NULL, &p, len);
3378 if (rsp == NULL) {
3379 BIO_puts(arg, "response parse error\n");
3380 BIO_dump_indent(arg, (char *)p, len, 4);
3381 return 0;
3382 }
3383 BIO_puts(arg, "\n======================================\n");
3384 OCSP_RESPONSE_print(arg, rsp, 0);
3385 BIO_puts(arg, "======================================\n");
3386 OCSP_RESPONSE_free(rsp);
3387 return 1;
3388 }
3389 # endif
3390
ldap_ExtendedResponse_parse(const char * buf,long rem)3391 static int ldap_ExtendedResponse_parse(const char *buf, long rem)
3392 {
3393 const unsigned char *cur, *end;
3394 long len;
3395 int tag, xclass, inf, ret = -1;
3396
3397 cur = (const unsigned char *)buf;
3398 end = cur + rem;
3399
3400 /*
3401 * From RFC 4511:
3402 *
3403 * LDAPMessage ::= SEQUENCE {
3404 * messageID MessageID,
3405 * protocolOp CHOICE {
3406 * ...
3407 * extendedResp ExtendedResponse,
3408 * ... },
3409 * controls [0] Controls OPTIONAL }
3410 *
3411 * ExtendedResponse ::= [APPLICATION 24] SEQUENCE {
3412 * COMPONENTS OF LDAPResult,
3413 * responseName [10] LDAPOID OPTIONAL,
3414 * responseValue [11] OCTET STRING OPTIONAL }
3415 *
3416 * LDAPResult ::= SEQUENCE {
3417 * resultCode ENUMERATED {
3418 * success (0),
3419 * ...
3420 * other (80),
3421 * ... },
3422 * matchedDN LDAPDN,
3423 * diagnosticMessage LDAPString,
3424 * referral [3] Referral OPTIONAL }
3425 */
3426
3427 /* pull SEQUENCE */
3428 inf = ASN1_get_object(&cur, &len, &tag, &xclass, rem);
3429 if (inf != V_ASN1_CONSTRUCTED || tag != V_ASN1_SEQUENCE ||
3430 (rem = end - cur, len > rem)) {
3431 BIO_printf(bio_err, "Unexpected LDAP response\n");
3432 goto end;
3433 }
3434
3435 rem = len; /* ensure that we don't overstep the SEQUENCE */
3436
3437 /* pull MessageID */
3438 inf = ASN1_get_object(&cur, &len, &tag, &xclass, rem);
3439 if (inf != V_ASN1_UNIVERSAL || tag != V_ASN1_INTEGER ||
3440 (rem = end - cur, len > rem)) {
3441 BIO_printf(bio_err, "No MessageID\n");
3442 goto end;
3443 }
3444
3445 cur += len; /* shall we check for MessageId match or just skip? */
3446
3447 /* pull [APPLICATION 24] */
3448 rem = end - cur;
3449 inf = ASN1_get_object(&cur, &len, &tag, &xclass, rem);
3450 if (inf != V_ASN1_CONSTRUCTED || xclass != V_ASN1_APPLICATION ||
3451 tag != 24) {
3452 BIO_printf(bio_err, "Not ExtendedResponse\n");
3453 goto end;
3454 }
3455
3456 /* pull resultCode */
3457 rem = end - cur;
3458 inf = ASN1_get_object(&cur, &len, &tag, &xclass, rem);
3459 if (inf != V_ASN1_UNIVERSAL || tag != V_ASN1_ENUMERATED || len == 0 ||
3460 (rem = end - cur, len > rem)) {
3461 BIO_printf(bio_err, "Not LDAPResult\n");
3462 goto end;
3463 }
3464
3465 /* len should always be one, but just in case... */
3466 for (ret = 0, inf = 0; inf < len; inf++) {
3467 ret <<= 8;
3468 ret |= cur[inf];
3469 }
3470 /* There is more data, but we don't care... */
3471 end:
3472 return ret;
3473 }
3474
3475 /*
3476 * Host dNS Name verifier: used for checking that the hostname is in dNS format
3477 * before setting it as SNI
3478 */
is_dNS_name(const char * host)3479 static int is_dNS_name(const char *host)
3480 {
3481 const size_t MAX_LABEL_LENGTH = 63;
3482 size_t i;
3483 int isdnsname = 0;
3484 size_t length = strlen(host);
3485 size_t label_length = 0;
3486 int all_numeric = 1;
3487
3488 /*
3489 * Deviation from strict DNS name syntax, also check names with '_'
3490 * Check DNS name syntax, any '-' or '.' must be internal,
3491 * and on either side of each '.' we can't have a '-' or '.'.
3492 *
3493 * If the name has just one label, we don't consider it a DNS name.
3494 */
3495 for (i = 0; i < length && label_length < MAX_LABEL_LENGTH; ++i) {
3496 char c = host[i];
3497
3498 if ((c >= 'a' && c <= 'z')
3499 || (c >= 'A' && c <= 'Z')
3500 || c == '_') {
3501 label_length += 1;
3502 all_numeric = 0;
3503 continue;
3504 }
3505
3506 if (c >= '0' && c <= '9') {
3507 label_length += 1;
3508 continue;
3509 }
3510
3511 /* Dot and hyphen cannot be first or last. */
3512 if (i > 0 && i < length - 1) {
3513 if (c == '-') {
3514 label_length += 1;
3515 continue;
3516 }
3517 /*
3518 * Next to a dot the preceding and following characters must not be
3519 * another dot or a hyphen. Otherwise, record that the name is
3520 * plausible, since it has two or more labels.
3521 */
3522 if (c == '.'
3523 && host[i + 1] != '.'
3524 && host[i - 1] != '-'
3525 && host[i + 1] != '-') {
3526 label_length = 0;
3527 isdnsname = 1;
3528 continue;
3529 }
3530 }
3531 isdnsname = 0;
3532 break;
3533 }
3534
3535 /* dNS name must not be all numeric and labels must be shorter than 64 characters. */
3536 isdnsname &= !all_numeric && !(label_length == MAX_LABEL_LENGTH);
3537
3538 return isdnsname;
3539 }
3540 #endif /* OPENSSL_NO_SOCK */
3541