1 /*
2 * Copyright 1995-2026 The OpenSSL Project Authors. All Rights Reserved.
3 * Copyright 2005 Nokia. All rights reserved.
4 *
5 * Licensed under the Apache License 2.0 (the "License"). You may not use
6 * this file except in compliance with the License. You can obtain a copy
7 * in the file LICENSE in the source distribution or at
8 * https://www.openssl.org/source/license.html
9 */
10
11 #include "internal/e_os.h"
12 #include <ctype.h>
13 #include <stdio.h>
14 #include <stdlib.h>
15 #include <string.h>
16 #include <errno.h>
17 #include <openssl/e_os2.h>
18 #include "internal/nelem.h"
19 #include "internal/sockets.h" /* for openssl_fdset() */
20
21 #ifndef OPENSSL_NO_SOCK
22
23 /*
24 * With IPv6, it looks like Digital has mixed up the proper order of
25 * recursive header file inclusion, resulting in the compiler complaining
26 * that u_int isn't defined, but only if _POSIX_C_SOURCE is defined, which is
27 * needed to have fileno() declared correctly... So let's define u_int
28 */
29 #if defined(OPENSSL_SYS_VMS_DECC) && !defined(__U_INT)
30 #define __U_INT
31 typedef unsigned int u_int;
32 #endif
33
34 #include "apps.h"
35 #include "progs.h"
36 #include <openssl/x509.h>
37 #include <openssl/ssl.h>
38 #include <openssl/err.h>
39 #include <openssl/pem.h>
40 #include <openssl/rand.h>
41 #include <openssl/ocsp.h>
42 #include <openssl/bn.h>
43 #include <openssl/trace.h>
44 #include <openssl/async.h>
45 #ifndef OPENSSL_NO_CT
46 #include <openssl/ct.h>
47 #endif
48 #include "s_apps.h"
49 #include "timeouts.h"
50 #include "internal/sockets.h"
51
52 #if defined(__has_feature)
53 #if __has_feature(memory_sanitizer)
54 #include <sanitizer/msan_interface.h>
55 #endif
56 #endif
57
58 #undef BUFSIZZ
59 #define BUFSIZZ 1024 * 16
60 #define S_CLIENT_IRC_READ_TIMEOUT 8
61
62 #define USER_DATA_MODE_NONE 0
63 #define USER_DATA_MODE_BASIC 1
64 #define USER_DATA_MODE_ADVANCED 2
65
66 #define USER_DATA_PROCESS_BAD_ARGUMENT 0
67 #define USER_DATA_PROCESS_SHUT 1
68 #define USER_DATA_PROCESS_RESTART 2
69 #define USER_DATA_PROCESS_NO_DATA 3
70 #define USER_DATA_PROCESS_CONTINUE 4
71
72 struct user_data_st {
73 /* SSL connection we are processing commands for */
74 SSL *con;
75
76 /* Buffer where we are storing data supplied by the user */
77 char *buf;
78
79 /* Allocated size of the buffer */
80 size_t bufmax;
81
82 /* Amount of the buffer actually used */
83 size_t buflen;
84
85 /* Current location in the buffer where we will read from next*/
86 size_t bufoff;
87
88 /* The mode we are using for processing commands */
89 int mode;
90
91 /* Whether FIN has ben sent on the stream */
92 int isfin;
93 };
94
95 static void user_data_init(struct user_data_st *user_data, SSL *con, char *buf,
96 size_t bufmax, int mode);
97 static int user_data_add(struct user_data_st *user_data, size_t i);
98 static int user_data_process(struct user_data_st *user_data, size_t *len,
99 size_t *off);
100 static int user_data_has_data(struct user_data_st *user_data);
101
102 static char *prog;
103 static int c_debug = 0;
104 static int c_showcerts = 0;
105 static char *keymatexportlabel = NULL;
106 static int keymatexportlen = 20;
107 static BIO *bio_c_out = NULL;
108 static int c_quiet = 0;
109 static char *sess_out = NULL;
110 static SSL_SESSION *psksess = NULL;
111
112 static void print_stuff(BIO *berr, SSL *con, int full);
113 #ifndef OPENSSL_NO_OCSP
114 static int ocsp_resp_cb(SSL *s, void *arg);
115 #endif
116 static int ldap_ExtendedResponse_parse(const char *buf, long rem);
117 static int is_dNS_name(const char *host);
118
119 static const unsigned char cert_type_rpk[] = { TLSEXT_cert_type_rpk, TLSEXT_cert_type_x509 };
120 static int enable_server_rpk = 0;
121
122 static int saved_errno;
123
save_errno(void)124 static void save_errno(void)
125 {
126 saved_errno = errno;
127 errno = 0;
128 }
129
restore_errno(void)130 static int restore_errno(void)
131 {
132 int ret = errno;
133 errno = saved_errno;
134 return ret;
135 }
136
137 /* Default PSK identity and key */
138 static char *psk_identity = "Client_identity";
139
140 #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)141 static unsigned int psk_client_cb(SSL *ssl, const char *hint, char *identity,
142 unsigned int max_identity_len,
143 unsigned char *psk,
144 unsigned int max_psk_len)
145 {
146 int ret;
147 long key_len;
148 unsigned char *key;
149
150 if (c_debug)
151 BIO_printf(bio_c_out, "psk_client_cb\n");
152 if (!hint) {
153 /* no ServerKeyExchange message */
154 if (c_debug)
155 BIO_printf(bio_c_out,
156 "NULL received PSK identity hint, continuing anyway\n");
157 } else if (c_debug) {
158 BIO_printf(bio_c_out, "Received PSK identity hint '%s'\n", hint);
159 }
160
161 /*
162 * lookup PSK identity and PSK key based on the given identity hint here
163 */
164 ret = BIO_snprintf(identity, max_identity_len, "%s", psk_identity);
165 if (ret < 0 || (unsigned int)ret > max_identity_len)
166 goto out_err;
167 if (c_debug)
168 BIO_printf(bio_c_out, "created identity '%s' len=%d\n", identity,
169 ret);
170
171 /* convert the PSK key to binary */
172 key = OPENSSL_hexstr2buf(psk_key, &key_len);
173 if (key == NULL) {
174 BIO_printf(bio_err, "Could not convert PSK key '%s' to buffer\n",
175 psk_key);
176 return 0;
177 }
178 if (max_psk_len > INT_MAX || key_len > (long)max_psk_len) {
179 BIO_printf(bio_err,
180 "psk buffer of callback is too small (%d) for key (%ld)\n",
181 max_psk_len, key_len);
182 OPENSSL_free(key);
183 return 0;
184 }
185
186 memcpy(psk, key, key_len);
187 OPENSSL_free(key);
188
189 if (c_debug)
190 BIO_printf(bio_c_out, "created PSK len=%ld\n", key_len);
191
192 return key_len;
193 out_err:
194 if (c_debug)
195 BIO_printf(bio_err, "Error in PSK client callback\n");
196 return 0;
197 }
198 #endif
199
200 const unsigned char tls13_aes128gcmsha256_id[] = { 0x13, 0x01 };
201 const unsigned char tls13_aes256gcmsha384_id[] = { 0x13, 0x02 };
202
psk_use_session_cb(SSL * s,const EVP_MD * md,const unsigned char ** id,size_t * idlen,SSL_SESSION ** sess)203 static int psk_use_session_cb(SSL *s, const EVP_MD *md,
204 const unsigned char **id, size_t *idlen,
205 SSL_SESSION **sess)
206 {
207 SSL_SESSION *usesess = NULL;
208 const SSL_CIPHER *cipher = NULL;
209
210 if (psksess != NULL) {
211 if (!SSL_SESSION_up_ref(psksess))
212 goto err;
213 usesess = psksess;
214 } else {
215 long key_len;
216 unsigned char *key = OPENSSL_hexstr2buf(psk_key, &key_len);
217
218 if (key == NULL) {
219 BIO_printf(bio_err, "Could not convert PSK key '%s' to buffer\n",
220 psk_key);
221 return 0;
222 }
223
224 /* We default to SHA-256 */
225 cipher = SSL_CIPHER_find(s, tls13_aes128gcmsha256_id);
226 if (cipher == NULL) {
227 BIO_printf(bio_err, "Error finding suitable ciphersuite\n");
228 OPENSSL_free(key);
229 return 0;
230 }
231
232 usesess = SSL_SESSION_new();
233 if (usesess == NULL
234 || !SSL_SESSION_set1_master_key(usesess, key, key_len)
235 || !SSL_SESSION_set_cipher(usesess, cipher)
236 || !SSL_SESSION_set_protocol_version(usesess, TLS1_3_VERSION)) {
237 OPENSSL_free(key);
238 goto err;
239 }
240 OPENSSL_free(key);
241 }
242
243 cipher = SSL_SESSION_get0_cipher(usesess);
244 if (cipher == NULL)
245 goto err;
246
247 if (md != NULL && SSL_CIPHER_get_handshake_digest(cipher) != md) {
248 /* PSK not usable, ignore it */
249 *id = NULL;
250 *idlen = 0;
251 *sess = NULL;
252 SSL_SESSION_free(usesess);
253 } else {
254 *sess = usesess;
255 *id = (unsigned char *)psk_identity;
256 *idlen = strlen(psk_identity);
257 }
258
259 return 1;
260
261 err:
262 SSL_SESSION_free(usesess);
263 return 0;
264 }
265
266 /* This is a context that we pass to callbacks */
267 typedef struct tlsextctx_st {
268 BIO *biodebug;
269 int ack;
270 } tlsextctx;
271
ssl_servername_cb(SSL * s,int * ad,void * arg)272 static int ssl_servername_cb(SSL *s, int *ad, void *arg)
273 {
274 tlsextctx *p = (tlsextctx *)arg;
275 const char *hn = SSL_get_servername(s, TLSEXT_NAMETYPE_host_name);
276 if (SSL_get_servername_type(s) != -1)
277 p->ack = !SSL_session_reused(s) && hn != NULL;
278 else
279 BIO_printf(bio_err, "Can't use SSL_get_servername\n");
280
281 return SSL_TLSEXT_ERR_OK;
282 }
283
284 #ifndef OPENSSL_NO_NEXTPROTONEG
285 /* This the context that we pass to next_proto_cb */
286 typedef struct tlsextnextprotoctx_st {
287 unsigned char *data;
288 size_t len;
289 int status;
290 } tlsextnextprotoctx;
291
292 static tlsextnextprotoctx next_proto;
293
next_proto_cb(SSL * s,unsigned char ** out,unsigned char * outlen,const unsigned char * in,unsigned int inlen,void * arg)294 static int next_proto_cb(SSL *s, unsigned char **out, unsigned char *outlen,
295 const unsigned char *in, unsigned int inlen,
296 void *arg)
297 {
298 tlsextnextprotoctx *ctx = arg;
299
300 if (!c_quiet) {
301 /* We can assume that |in| is syntactically valid. */
302 unsigned i;
303 BIO_printf(bio_c_out, "Protocols advertised by server: ");
304 for (i = 0; i < inlen;) {
305 if (i)
306 BIO_write(bio_c_out, ", ", 2);
307 BIO_write(bio_c_out, &in[i + 1], in[i]);
308 i += in[i] + 1;
309 }
310 BIO_write(bio_c_out, "\n", 1);
311 }
312
313 ctx->status = SSL_select_next_proto(out, outlen, in, inlen, ctx->data, ctx->len);
314 return SSL_TLSEXT_ERR_OK;
315 }
316 #endif /* ndef OPENSSL_NO_NEXTPROTONEG */
317
serverinfo_cli_parse_cb(SSL * s,unsigned int ext_type,const unsigned char * in,size_t inlen,int * al,void * arg)318 static int serverinfo_cli_parse_cb(SSL *s, unsigned int ext_type,
319 const unsigned char *in, size_t inlen,
320 int *al, void *arg)
321 {
322 char pem_name[100];
323 unsigned char ext_buf[4 + 65536];
324
325 /* Reconstruct the type/len fields prior to extension data */
326 inlen &= 0xffff; /* for formal memcmpy correctness */
327 ext_buf[0] = (unsigned char)(ext_type >> 8);
328 ext_buf[1] = (unsigned char)(ext_type);
329 ext_buf[2] = (unsigned char)(inlen >> 8);
330 ext_buf[3] = (unsigned char)(inlen);
331 memcpy(ext_buf + 4, in, inlen);
332
333 BIO_snprintf(pem_name, sizeof(pem_name), "SERVERINFO FOR EXTENSION %d",
334 ext_type);
335 PEM_write_bio(bio_c_out, pem_name, "", ext_buf, 4 + inlen);
336 return 1;
337 }
338
339 /*
340 * Hex decoder that tolerates optional whitespace. Returns number of bytes
341 * produced, advances inptr to end of input string.
342 */
hexdecode(const char ** inptr,void * result)343 static ossl_ssize_t hexdecode(const char **inptr, void *result)
344 {
345 unsigned char **out = (unsigned char **)result;
346 const char *in = *inptr;
347 unsigned char *ret = app_malloc(strlen(in) / 2, "hexdecode");
348 unsigned char *cp = ret;
349 uint8_t byte;
350 int nibble = 0;
351
352 if (ret == NULL)
353 return -1;
354
355 for (byte = 0; *in; ++in) {
356 int x;
357
358 if (isspace(_UC(*in)))
359 continue;
360 x = OPENSSL_hexchar2int(*in);
361 if (x < 0) {
362 OPENSSL_free(ret);
363 return 0;
364 }
365 byte |= (char)x;
366 if ((nibble ^= 1) == 0) {
367 *cp++ = byte;
368 byte = 0;
369 } else {
370 byte <<= 4;
371 }
372 }
373 if (nibble != 0) {
374 OPENSSL_free(ret);
375 return 0;
376 }
377 *inptr = in;
378
379 return cp - (*out = ret);
380 }
381
382 /*
383 * Decode unsigned 0..255, returns 1 on success, <= 0 on failure. Advances
384 * inptr to next field skipping leading whitespace.
385 */
checked_uint8(const char ** inptr,void * out)386 static ossl_ssize_t checked_uint8(const char **inptr, void *out)
387 {
388 uint8_t *result = (uint8_t *)out;
389 const char *in = *inptr;
390 char *endp;
391 long v;
392 int e;
393
394 save_errno();
395 v = strtol(in, &endp, 10);
396 e = restore_errno();
397
398 if (((v == LONG_MIN || v == LONG_MAX) && e == ERANGE) || endp == in || !isspace(_UC(*endp)) || v != (*result = (uint8_t)v)) {
399 return -1;
400 }
401 for (in = endp; isspace(_UC(*in)); ++in)
402 continue;
403
404 *inptr = in;
405 return 1;
406 }
407
408 struct tlsa_field {
409 void *var;
410 const char *name;
411 ossl_ssize_t (*parser)(const char **, void *);
412 };
413
tlsa_import_rr(SSL * con,const char * rrdata)414 static int tlsa_import_rr(SSL *con, const char *rrdata)
415 {
416 /* Not necessary to re-init these values; the "parsers" do that. */
417 static uint8_t usage;
418 static uint8_t selector;
419 static uint8_t mtype;
420 static unsigned char *data;
421 static struct tlsa_field tlsa_fields[] = {
422 { &usage, "usage", checked_uint8 },
423 { &selector, "selector", checked_uint8 },
424 { &mtype, "mtype", checked_uint8 },
425 { &data, "data", hexdecode },
426 {
427 NULL,
428 }
429 };
430 struct tlsa_field *f;
431 int ret;
432 const char *cp = rrdata;
433 ossl_ssize_t len = 0;
434
435 for (f = tlsa_fields; f->var; ++f) {
436 /* Returns number of bytes produced, advances cp to next field */
437 if ((len = f->parser(&cp, f->var)) <= 0) {
438 BIO_printf(bio_err, "%s: warning: bad TLSA %s field in: %s\n",
439 prog, f->name, rrdata);
440 return 0;
441 }
442 }
443 /* The data field is last, so len is its length */
444 ret = SSL_dane_tlsa_add(con, usage, selector, mtype, data, len);
445 OPENSSL_free(data);
446
447 if (ret == 0) {
448 ERR_print_errors(bio_err);
449 BIO_printf(bio_err, "%s: warning: unusable TLSA rrdata: %s\n",
450 prog, rrdata);
451 return 0;
452 }
453 if (ret < 0) {
454 ERR_print_errors(bio_err);
455 BIO_printf(bio_err, "%s: warning: error loading TLSA rrdata: %s\n",
456 prog, rrdata);
457 return 0;
458 }
459 return ret;
460 }
461
tlsa_import_rrset(SSL * con,STACK_OF (OPENSSL_STRING)* rrset)462 static int tlsa_import_rrset(SSL *con, STACK_OF(OPENSSL_STRING) *rrset)
463 {
464 int num = sk_OPENSSL_STRING_num(rrset);
465 int count = 0;
466 int i;
467
468 for (i = 0; i < num; ++i) {
469 char *rrdata = sk_OPENSSL_STRING_value(rrset, i);
470 if (tlsa_import_rr(con, rrdata) > 0)
471 ++count;
472 }
473 return count > 0;
474 }
475
476 typedef enum OPTION_choice {
477 OPT_COMMON,
478 OPT_4,
479 OPT_6,
480 OPT_HOST,
481 OPT_PORT,
482 OPT_CONNECT,
483 OPT_BIND,
484 OPT_UNIX,
485 OPT_XMPPHOST,
486 OPT_VERIFY,
487 OPT_NAMEOPT,
488 OPT_CERT,
489 OPT_CRL,
490 OPT_CRL_DOWNLOAD,
491 OPT_SESS_OUT,
492 OPT_SESS_IN,
493 OPT_CERTFORM,
494 OPT_CRLFORM,
495 OPT_VERIFY_RET_ERROR,
496 OPT_VERIFY_QUIET,
497 OPT_BRIEF,
498 OPT_PREXIT,
499 OPT_NO_INTERACTIVE,
500 OPT_CRLF,
501 OPT_QUIET,
502 OPT_NBIO,
503 OPT_SSL_CLIENT_ENGINE,
504 OPT_IGN_EOF,
505 OPT_NO_IGN_EOF,
506 OPT_DEBUG,
507 OPT_TLSEXTDEBUG,
508 OPT_STATUS,
509 OPT_WDEBUG,
510 OPT_MSG,
511 OPT_MSGFILE,
512 OPT_ENGINE,
513 OPT_TRACE,
514 OPT_SECURITY_DEBUG,
515 OPT_SECURITY_DEBUG_VERBOSE,
516 OPT_SHOWCERTS,
517 OPT_NBIO_TEST,
518 OPT_STATE,
519 OPT_PSK_IDENTITY,
520 OPT_PSK,
521 OPT_PSK_SESS,
522 #ifndef OPENSSL_NO_SRP
523 OPT_SRPUSER,
524 OPT_SRPPASS,
525 OPT_SRP_STRENGTH,
526 OPT_SRP_LATEUSER,
527 OPT_SRP_MOREGROUPS,
528 #endif
529 OPT_SSL3,
530 OPT_SSL_CONFIG,
531 OPT_TLS1_3,
532 OPT_TLS1_2,
533 OPT_TLS1_1,
534 OPT_TLS1,
535 OPT_DTLS,
536 OPT_DTLS1,
537 OPT_DTLS1_2,
538 OPT_QUIC,
539 OPT_SCTP,
540 OPT_TIMEOUT,
541 OPT_MTU,
542 OPT_KEYFORM,
543 OPT_PASS,
544 OPT_CERT_CHAIN,
545 OPT_KEY,
546 OPT_RECONNECT,
547 OPT_BUILD_CHAIN,
548 OPT_NEXTPROTONEG,
549 OPT_ALPN,
550 OPT_CAPATH,
551 OPT_NOCAPATH,
552 OPT_CHAINCAPATH,
553 OPT_VERIFYCAPATH,
554 OPT_CAFILE,
555 OPT_NOCAFILE,
556 OPT_CHAINCAFILE,
557 OPT_VERIFYCAFILE,
558 OPT_CASTORE,
559 OPT_NOCASTORE,
560 OPT_CHAINCASTORE,
561 OPT_VERIFYCASTORE,
562 OPT_SERVERINFO,
563 OPT_STARTTLS,
564 OPT_SERVERNAME,
565 OPT_NOSERVERNAME,
566 OPT_ASYNC,
567 OPT_USE_SRTP,
568 OPT_KEYMATEXPORT,
569 OPT_KEYMATEXPORTLEN,
570 OPT_PROTOHOST,
571 OPT_MAXFRAGLEN,
572 OPT_MAX_SEND_FRAG,
573 OPT_SPLIT_SEND_FRAG,
574 OPT_MAX_PIPELINES,
575 OPT_READ_BUF,
576 OPT_KEYLOG_FILE,
577 OPT_EARLY_DATA,
578 OPT_REQCAFILE,
579 OPT_TFO,
580 OPT_V_ENUM,
581 OPT_X_ENUM,
582 OPT_S_ENUM,
583 OPT_IGNORE_UNEXPECTED_EOF,
584 OPT_FALLBACKSCSV,
585 OPT_NOCMDS,
586 OPT_ADV,
587 OPT_PROXY,
588 OPT_PROXY_USER,
589 OPT_PROXY_PASS,
590 OPT_DANE_TLSA_DOMAIN,
591 #ifndef OPENSSL_NO_CT
592 OPT_CT,
593 OPT_NOCT,
594 OPT_CTLOG_FILE,
595 #endif
596 OPT_DANE_TLSA_RRDATA,
597 OPT_DANE_EE_NO_NAME,
598 OPT_ENABLE_PHA,
599 OPT_ENABLE_SERVER_RPK,
600 OPT_ENABLE_CLIENT_RPK,
601 OPT_SCTP_LABEL_BUG,
602 OPT_KTLS,
603 OPT_R_ENUM,
604 OPT_PROV_ENUM
605 } OPTION_CHOICE;
606
607 const OPTIONS s_client_options[] = {
608 { OPT_HELP_STR, 1, '-', "Usage: %s [options] [host:port]\n" },
609
610 OPT_SECTION("General"),
611 { "help", OPT_HELP, '-', "Display this summary" },
612 #ifndef OPENSSL_NO_ENGINE
613 { "engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device" },
614 { "ssl_client_engine", OPT_SSL_CLIENT_ENGINE, 's',
615 "Specify engine to be used for client certificate operations" },
616 #endif
617 { "ssl_config", OPT_SSL_CONFIG, 's', "Use specified section for SSL_CTX configuration" },
618 #ifndef OPENSSL_NO_CT
619 { "ct", OPT_CT, '-', "Request and parse SCTs (also enables OCSP stapling)" },
620 { "noct", OPT_NOCT, '-', "Do not request or parse SCTs (default)" },
621 { "ctlogfile", OPT_CTLOG_FILE, '<', "CT log list CONF file" },
622 #endif
623
624 OPT_SECTION("Network"),
625 { "host", OPT_HOST, 's', "Use -connect instead" },
626 { "port", OPT_PORT, 'p', "Use -connect instead" },
627 { "connect", OPT_CONNECT, 's',
628 "TCP/IP where to connect; default: " PORT ")" },
629 { "bind", OPT_BIND, 's', "bind local address for connection" },
630 { "proxy", OPT_PROXY, 's',
631 "Connect to via specified proxy to the real server" },
632 { "proxy_user", OPT_PROXY_USER, 's', "UserID for proxy authentication" },
633 { "proxy_pass", OPT_PROXY_PASS, 's', "Proxy authentication password source" },
634 #ifdef AF_UNIX
635 { "unix", OPT_UNIX, 's', "Connect over the specified Unix-domain socket" },
636 #endif
637 { "4", OPT_4, '-', "Use IPv4 only" },
638 #ifdef AF_INET6
639 { "6", OPT_6, '-', "Use IPv6 only" },
640 #endif
641 { "maxfraglen", OPT_MAXFRAGLEN, 'p',
642 "Enable Maximum Fragment Length Negotiation (len values: 512, 1024, 2048 and 4096)" },
643 { "max_send_frag", OPT_MAX_SEND_FRAG, 'p', "Maximum Size of send frames " },
644 { "split_send_frag", OPT_SPLIT_SEND_FRAG, 'p',
645 "Size used to split data for encrypt pipelines" },
646 { "max_pipelines", OPT_MAX_PIPELINES, 'p',
647 "Maximum number of encrypt/decrypt pipelines to be used" },
648 { "read_buf", OPT_READ_BUF, 'p',
649 "Default read buffer size to be used for connections" },
650 { "fallback_scsv", OPT_FALLBACKSCSV, '-', "Send the fallback SCSV" },
651
652 OPT_SECTION("Identity"),
653 { "cert", OPT_CERT, '<', "Client certificate file to use" },
654 { "certform", OPT_CERTFORM, 'F',
655 "Client certificate file format (PEM/DER/P12); has no effect" },
656 { "cert_chain", OPT_CERT_CHAIN, '<',
657 "Client certificate chain file (in PEM format)" },
658 { "build_chain", OPT_BUILD_CHAIN, '-', "Build client certificate chain" },
659 { "key", OPT_KEY, 's', "Private key file to use; default: -cert file" },
660 { "keyform", OPT_KEYFORM, 'E', "Key format (ENGINE, other values ignored)" },
661 { "pass", OPT_PASS, 's', "Private key and cert file pass phrase source" },
662 { "verify", OPT_VERIFY, 'p', "Turn on peer certificate verification" },
663 { "nameopt", OPT_NAMEOPT, 's', "Certificate subject/issuer name printing options" },
664 { "CApath", OPT_CAPATH, '/', "PEM format directory of CA's" },
665 { "CAfile", OPT_CAFILE, '<', "PEM format file of CA's" },
666 { "CAstore", OPT_CASTORE, ':', "URI to store of CA's" },
667 { "no-CAfile", OPT_NOCAFILE, '-',
668 "Do not load the default certificates file" },
669 { "no-CApath", OPT_NOCAPATH, '-',
670 "Do not load certificates from the default certificates directory" },
671 { "no-CAstore", OPT_NOCASTORE, '-',
672 "Do not load certificates from the default certificates store" },
673 { "requestCAfile", OPT_REQCAFILE, '<',
674 "PEM format file of CA names to send to the server" },
675 #if defined(TCP_FASTOPEN) && !defined(OPENSSL_NO_TFO)
676 { "tfo", OPT_TFO, '-', "Connect using TCP Fast Open" },
677 #endif
678 { "dane_tlsa_domain", OPT_DANE_TLSA_DOMAIN, 's', "DANE TLSA base domain" },
679 { "dane_tlsa_rrdata", OPT_DANE_TLSA_RRDATA, 's',
680 "DANE TLSA rrdata presentation form" },
681 { "dane_ee_no_namechecks", OPT_DANE_EE_NO_NAME, '-',
682 "Disable name checks when matching DANE-EE(3) TLSA records" },
683 { "psk_identity", OPT_PSK_IDENTITY, 's', "PSK identity" },
684 { "psk", OPT_PSK, 's', "PSK in hex (without 0x)" },
685 { "psk_session", OPT_PSK_SESS, '<', "File to read PSK SSL session from" },
686 { "name", OPT_PROTOHOST, 's',
687 "Hostname to use for \"-starttls lmtp\", \"-starttls smtp\" or \"-starttls xmpp[-server]\"" },
688
689 OPT_SECTION("Session"),
690 { "reconnect", OPT_RECONNECT, '-',
691 "Drop and re-make the connection with the same Session-ID" },
692 { "sess_out", OPT_SESS_OUT, '>', "File to write SSL session to" },
693 { "sess_in", OPT_SESS_IN, '<', "File to read SSL session from" },
694
695 OPT_SECTION("Input/Output"),
696 { "crlf", OPT_CRLF, '-', "Convert LF from terminal into CRLF" },
697 { "quiet", OPT_QUIET, '-', "No s_client output" },
698 { "ign_eof", OPT_IGN_EOF, '-', "Ignore input eof (default when -quiet)" },
699 { "no_ign_eof", OPT_NO_IGN_EOF, '-', "Don't ignore input eof" },
700 { "starttls", OPT_STARTTLS, 's',
701 "Use the appropriate STARTTLS command before starting TLS" },
702 { "xmpphost", OPT_XMPPHOST, 's',
703 "Alias of -name option for \"-starttls xmpp[-server]\"" },
704 { "brief", OPT_BRIEF, '-',
705 "Restrict output to brief summary of connection parameters" },
706 { "prexit", OPT_PREXIT, '-',
707 "Print session information when the program exits" },
708 { "no-interactive", OPT_NO_INTERACTIVE, '-',
709 "Don't run the client in the interactive mode" },
710
711 OPT_SECTION("Debug"),
712 { "showcerts", OPT_SHOWCERTS, '-',
713 "Show all certificates sent by the server" },
714 { "debug", OPT_DEBUG, '-', "Extra output" },
715 { "msg", OPT_MSG, '-', "Show protocol messages" },
716 { "msgfile", OPT_MSGFILE, '>',
717 "File to send output of -msg or -trace, instead of stdout" },
718 { "nbio_test", OPT_NBIO_TEST, '-', "More ssl protocol testing" },
719 { "state", OPT_STATE, '-', "Print the ssl states" },
720 { "keymatexport", OPT_KEYMATEXPORT, 's',
721 "Export keying material using label" },
722 { "keymatexportlen", OPT_KEYMATEXPORTLEN, 'p',
723 "Export len bytes of keying material; default 20" },
724 { "security_debug", OPT_SECURITY_DEBUG, '-',
725 "Enable security debug messages" },
726 { "security_debug_verbose", OPT_SECURITY_DEBUG_VERBOSE, '-',
727 "Output more security debug output" },
728 #ifndef OPENSSL_NO_SSL_TRACE
729 { "trace", OPT_TRACE, '-', "Show trace output of protocol messages" },
730 #endif
731 #ifdef WATT32
732 { "wdebug", OPT_WDEBUG, '-', "WATT-32 tcp debugging" },
733 #endif
734 { "keylogfile", OPT_KEYLOG_FILE, '>', "Write TLS secrets to file" },
735 { "nocommands", OPT_NOCMDS, '-', "Do not use interactive command letters" },
736 { "adv", OPT_ADV, '-', "Advanced command mode" },
737 { "servername", OPT_SERVERNAME, 's',
738 "Set TLS extension servername (SNI) in ClientHello (default)" },
739 { "noservername", OPT_NOSERVERNAME, '-',
740 "Do not send the server name (SNI) extension in the ClientHello" },
741 { "tlsextdebug", OPT_TLSEXTDEBUG, '-',
742 "Hex dump of all TLS extensions received" },
743 { "ignore_unexpected_eof", OPT_IGNORE_UNEXPECTED_EOF, '-',
744 "Do not treat lack of close_notify from a peer as an error" },
745 #ifndef OPENSSL_NO_OCSP
746 { "status", OPT_STATUS, '-', "Request certificate status from server" },
747 #endif
748 { "serverinfo", OPT_SERVERINFO, 's',
749 "types Send empty ClientHello extensions (comma-separated numbers)" },
750 { "alpn", OPT_ALPN, 's',
751 "Enable ALPN extension, considering named protocols supported (comma-separated list)" },
752 { "async", OPT_ASYNC, '-', "Support asynchronous operation" },
753 { "nbio", OPT_NBIO, '-', "Use non-blocking IO" },
754
755 OPT_SECTION("Protocol and version"),
756 #ifndef OPENSSL_NO_SSL3
757 { "ssl3", OPT_SSL3, '-', "Just use SSLv3" },
758 #endif
759 #ifndef OPENSSL_NO_TLS1
760 { "tls1", OPT_TLS1, '-', "Just use TLSv1" },
761 #endif
762 #ifndef OPENSSL_NO_TLS1_1
763 { "tls1_1", OPT_TLS1_1, '-', "Just use TLSv1.1" },
764 #endif
765 #ifndef OPENSSL_NO_TLS1_2
766 { "tls1_2", OPT_TLS1_2, '-', "Just use TLSv1.2" },
767 #endif
768 #ifndef OPENSSL_NO_TLS1_3
769 { "tls1_3", OPT_TLS1_3, '-', "Just use TLSv1.3" },
770 #endif
771 #ifndef OPENSSL_NO_DTLS
772 { "dtls", OPT_DTLS, '-', "Use any version of DTLS" },
773 { "quic", OPT_QUIC, '-', "Use QUIC" },
774 { "timeout", OPT_TIMEOUT, '-',
775 "Enable send/receive timeout on DTLS connections" },
776 { "mtu", OPT_MTU, 'p', "Set the link layer MTU" },
777 #endif
778 #ifndef OPENSSL_NO_DTLS1
779 { "dtls1", OPT_DTLS1, '-', "Just use DTLSv1" },
780 #endif
781 #ifndef OPENSSL_NO_DTLS1_2
782 { "dtls1_2", OPT_DTLS1_2, '-', "Just use DTLSv1.2" },
783 #endif
784 #ifndef OPENSSL_NO_SCTP
785 { "sctp", OPT_SCTP, '-', "Use SCTP" },
786 { "sctp_label_bug", OPT_SCTP_LABEL_BUG, '-', "Enable SCTP label length bug" },
787 #endif
788 #ifndef OPENSSL_NO_NEXTPROTONEG
789 { "nextprotoneg", OPT_NEXTPROTONEG, 's',
790 "Enable NPN extension, considering named protocols supported (comma-separated list)" },
791 #endif
792 { "early_data", OPT_EARLY_DATA, '<', "File to send as early data" },
793 { "enable_pha", OPT_ENABLE_PHA, '-', "Enable post-handshake-authentication" },
794 { "enable_server_rpk", OPT_ENABLE_SERVER_RPK, '-', "Enable raw public keys (RFC7250) from the server" },
795 { "enable_client_rpk", OPT_ENABLE_CLIENT_RPK, '-', "Enable raw public keys (RFC7250) from the client" },
796 #ifndef OPENSSL_NO_SRTP
797 { "use_srtp", OPT_USE_SRTP, 's',
798 "Offer SRTP key management with a colon-separated profile list" },
799 #endif
800 #ifndef OPENSSL_NO_SRP
801 { "srpuser", OPT_SRPUSER, 's', "(deprecated) SRP authentication for 'user'" },
802 { "srppass", OPT_SRPPASS, 's', "(deprecated) Password for 'user'" },
803 { "srp_lateuser", OPT_SRP_LATEUSER, '-',
804 "(deprecated) SRP username into second ClientHello message" },
805 { "srp_moregroups", OPT_SRP_MOREGROUPS, '-',
806 "(deprecated) Tolerate other than the known g N values." },
807 { "srp_strength", OPT_SRP_STRENGTH, 'p',
808 "(deprecated) Minimal length in bits for N" },
809 #endif
810 #ifndef OPENSSL_NO_KTLS
811 { "ktls", OPT_KTLS, '-', "Enable Kernel TLS for sending and receiving" },
812 #endif
813
814 OPT_R_OPTIONS,
815 OPT_S_OPTIONS,
816 OPT_V_OPTIONS,
817 { "CRL", OPT_CRL, '<', "CRL file to use" },
818 { "crl_download", OPT_CRL_DOWNLOAD, '-', "Download CRL from distribution points" },
819 { "CRLform", OPT_CRLFORM, 'F', "CRL format (PEM or DER); default PEM" },
820 { "verify_return_error", OPT_VERIFY_RET_ERROR, '-',
821 "Close connection on verification error" },
822 { "verify_quiet", OPT_VERIFY_QUIET, '-', "Restrict verify output to errors" },
823 { "chainCAfile", OPT_CHAINCAFILE, '<',
824 "CA file for certificate chain (PEM format)" },
825 { "chainCApath", OPT_CHAINCAPATH, '/',
826 "Use dir as certificate store path to build CA certificate chain" },
827 { "chainCAstore", OPT_CHAINCASTORE, ':',
828 "CA store URI for certificate chain" },
829 { "verifyCAfile", OPT_VERIFYCAFILE, '<',
830 "CA file for certificate verification (PEM format)" },
831 { "verifyCApath", OPT_VERIFYCAPATH, '/',
832 "Use dir as certificate store path to verify CA certificate" },
833 { "verifyCAstore", OPT_VERIFYCASTORE, ':',
834 "CA store URI for certificate verification" },
835 OPT_X_OPTIONS,
836 OPT_PROV_OPTIONS,
837
838 OPT_PARAMETERS(),
839 { "host:port", 0, 0, "Where to connect; same as -connect option" },
840 { NULL }
841 };
842
843 typedef enum PROTOCOL_choice {
844 PROTO_OFF,
845 PROTO_SMTP,
846 PROTO_POP3,
847 PROTO_IMAP,
848 PROTO_FTP,
849 PROTO_TELNET,
850 PROTO_XMPP,
851 PROTO_XMPP_SERVER,
852 PROTO_IRC,
853 PROTO_MYSQL,
854 PROTO_POSTGRES,
855 PROTO_LMTP,
856 PROTO_NNTP,
857 PROTO_SIEVE,
858 PROTO_LDAP
859 } PROTOCOL_CHOICE;
860
861 static const OPT_PAIR services[] = {
862 { "smtp", PROTO_SMTP },
863 { "pop3", PROTO_POP3 },
864 { "imap", PROTO_IMAP },
865 { "ftp", PROTO_FTP },
866 { "xmpp", PROTO_XMPP },
867 { "xmpp-server", PROTO_XMPP_SERVER },
868 { "telnet", PROTO_TELNET },
869 { "irc", PROTO_IRC },
870 { "mysql", PROTO_MYSQL },
871 { "postgres", PROTO_POSTGRES },
872 { "lmtp", PROTO_LMTP },
873 { "nntp", PROTO_NNTP },
874 { "sieve", PROTO_SIEVE },
875 { "ldap", PROTO_LDAP },
876 { NULL, 0 }
877 };
878
879 #define IS_INET_FLAG(o) \
880 (o == OPT_4 || o == OPT_6 || o == OPT_HOST || o == OPT_PORT || o == OPT_CONNECT)
881 #define IS_UNIX_FLAG(o) (o == OPT_UNIX)
882
883 #define IS_PROT_FLAG(o) \
884 (o == OPT_SSL3 || o == OPT_TLS1 || o == OPT_TLS1_1 || o == OPT_TLS1_2 \
885 || o == OPT_TLS1_3 || o == OPT_DTLS || o == OPT_DTLS1 || o == OPT_DTLS1_2 \
886 || o == OPT_QUIC)
887
888 /* Free |*dest| and optionally set it to a copy of |source|. */
freeandcopy(char ** dest,const char * source)889 static void freeandcopy(char **dest, const char *source)
890 {
891 OPENSSL_free(*dest);
892 *dest = NULL;
893 if (source != NULL)
894 *dest = OPENSSL_strdup(source);
895 }
896
new_session_cb(SSL * s,SSL_SESSION * sess)897 static int new_session_cb(SSL *s, SSL_SESSION *sess)
898 {
899
900 if (sess_out != NULL) {
901 BIO *stmp = BIO_new_file(sess_out, "w");
902
903 if (stmp == NULL) {
904 BIO_printf(bio_err, "Error writing session file %s\n", sess_out);
905 } else {
906 PEM_write_bio_SSL_SESSION(stmp, sess);
907 BIO_free(stmp);
908 }
909 }
910
911 /*
912 * Session data gets dumped on connection for TLSv1.2 and below, and on
913 * arrival of the NewSessionTicket for TLSv1.3.
914 */
915 if (SSL_version(s) == TLS1_3_VERSION) {
916 BIO_printf(bio_c_out,
917 "---\nPost-Handshake New Session Ticket arrived:\n");
918 SSL_SESSION_print(bio_c_out, sess);
919 BIO_printf(bio_c_out, "---\n");
920 }
921
922 /*
923 * We always return a "fail" response so that the session gets freed again
924 * because we haven't used the reference.
925 */
926 return 0;
927 }
928
s_client_main(int argc,char ** argv)929 int s_client_main(int argc, char **argv)
930 {
931 BIO *sbio;
932 EVP_PKEY *key = NULL;
933 SSL *con = NULL;
934 SSL_CTX *ctx = NULL;
935 STACK_OF(X509) *chain = NULL;
936 X509 *cert = NULL;
937 X509_VERIFY_PARAM *vpm = NULL;
938 SSL_EXCERT *exc = NULL;
939 SSL_CONF_CTX *cctx = NULL;
940 STACK_OF(OPENSSL_STRING) *ssl_args = NULL;
941 char *dane_tlsa_domain = NULL;
942 STACK_OF(OPENSSL_STRING) *dane_tlsa_rrset = NULL;
943 int dane_ee_no_name = 0;
944 STACK_OF(X509_CRL) *crls = NULL;
945 const SSL_METHOD *meth = TLS_client_method();
946 const char *CApath = NULL, *CAfile = NULL, *CAstore = NULL;
947 char *cbuf = NULL, *sbuf = NULL, *mbuf = NULL;
948 char *proxystr = NULL, *proxyuser = NULL;
949 char *proxypassarg = NULL, *proxypass = NULL;
950 char *connectstr = NULL, *bindstr = NULL;
951 char *cert_file = NULL, *key_file = NULL, *chain_file = NULL;
952 char *chCApath = NULL, *chCAfile = NULL, *chCAstore = NULL, *host = NULL;
953 char *thost = NULL, *tport = NULL;
954 char *port = NULL;
955 char *bindhost = NULL, *bindport = NULL;
956 char *passarg = NULL, *pass = NULL;
957 char *vfyCApath = NULL, *vfyCAfile = NULL, *vfyCAstore = NULL;
958 char *ReqCAfile = NULL;
959 char *sess_in = NULL, *crl_file = NULL, *p;
960 const char *protohost = NULL;
961 struct timeval timeout, *timeoutp;
962 fd_set readfds, writefds;
963 int noCApath = 0, noCAfile = 0, noCAstore = 0;
964 int build_chain = 0, cert_format = FORMAT_UNDEF;
965 size_t cbuf_len, cbuf_off;
966 int key_format = FORMAT_UNDEF, crlf = 0, full_log = 1, mbuf_len = 0;
967 int prexit = 0;
968 int nointeractive = 0;
969 int sdebug = 0;
970 int reconnect = 0, verify = SSL_VERIFY_NONE, vpmtouched = 0;
971 int ret = 1, in_init = 1, i, nbio_test = 0, sock = -1, k, width, state = 0;
972 int sbuf_len, sbuf_off, cmdmode = USER_DATA_MODE_BASIC;
973 int socket_family = AF_UNSPEC, socket_type = SOCK_STREAM, protocol = 0;
974 int starttls_proto = PROTO_OFF, crl_format = FORMAT_UNDEF, crl_download = 0;
975 int write_tty, read_tty, write_ssl, read_ssl, tty_on, ssl_pending;
976 int first_loop;
977 #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS)
978 int at_eof = 0;
979 #endif
980 int read_buf_len = 0;
981 int fallback_scsv = 0;
982 OPTION_CHOICE o;
983 #ifndef OPENSSL_NO_DTLS
984 int enable_timeouts = 0;
985 long socket_mtu = 0;
986 #endif
987 #ifndef OPENSSL_NO_ENGINE
988 ENGINE *ssl_client_engine = NULL;
989 #endif
990 ENGINE *e = NULL;
991 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
992 struct timeval tv;
993 #endif
994 const char *servername = NULL;
995 char *sname_alloc = NULL;
996 int noservername = 0;
997 const char *alpn_in = NULL;
998 tlsextctx tlsextcbp = { NULL, 0 };
999 const char *ssl_config = NULL;
1000 #define MAX_SI_TYPES 100
1001 unsigned short serverinfo_types[MAX_SI_TYPES];
1002 int serverinfo_count = 0, start = 0, len;
1003 #ifndef OPENSSL_NO_NEXTPROTONEG
1004 const char *next_proto_neg_in = NULL;
1005 #endif
1006 #ifndef OPENSSL_NO_SRP
1007 char *srppass = NULL;
1008 int srp_lateuser = 0;
1009 SRP_ARG srp_arg = { NULL, NULL, 0, 0, 0, 1024 };
1010 #endif
1011 #ifndef OPENSSL_NO_SRTP
1012 char *srtp_profiles = NULL;
1013 #endif
1014 #ifndef OPENSSL_NO_CT
1015 char *ctlog_file = NULL;
1016 int ct_validation = 0;
1017 #endif
1018 int min_version = 0, max_version = 0, prot_opt = 0, no_prot_opt = 0;
1019 int async = 0;
1020 unsigned int max_send_fragment = 0;
1021 unsigned int split_send_fragment = 0, max_pipelines = 0;
1022 enum { use_inet,
1023 use_unix,
1024 use_unknown } connect_type
1025 = use_unknown;
1026 int count4or6 = 0;
1027 uint8_t maxfraglen = 0;
1028 int c_nbio = 0, c_msg = 0, c_ign_eof = 0, c_brief = 0;
1029 int c_tlsextdebug = 0;
1030 #ifndef OPENSSL_NO_OCSP
1031 int c_status_req = 0;
1032 #endif
1033 BIO *bio_c_msg = NULL;
1034 const char *keylog_file = NULL, *early_data_file = NULL;
1035 int isdtls = 0, isquic = 0;
1036 char *psksessf = NULL;
1037 int enable_pha = 0;
1038 int enable_client_rpk = 0;
1039 #ifndef OPENSSL_NO_SCTP
1040 int sctp_label_bug = 0;
1041 #endif
1042 int ignore_unexpected_eof = 0;
1043 #ifndef OPENSSL_NO_KTLS
1044 int enable_ktls = 0;
1045 #endif
1046 int tfo = 0;
1047 int is_infinite;
1048 BIO_ADDR *peer_addr = NULL;
1049 struct user_data_st user_data;
1050
1051 FD_ZERO(&readfds);
1052 FD_ZERO(&writefds);
1053 /* Known false-positive of MemorySanitizer. */
1054 #if defined(__has_feature)
1055 #if __has_feature(memory_sanitizer)
1056 __msan_unpoison(&readfds, sizeof(readfds));
1057 __msan_unpoison(&writefds, sizeof(writefds));
1058 #endif
1059 #endif
1060
1061 c_quiet = 0;
1062 c_debug = 0;
1063 c_showcerts = 0;
1064 c_nbio = 0;
1065 port = OPENSSL_strdup(PORT);
1066 vpm = X509_VERIFY_PARAM_new();
1067 cctx = SSL_CONF_CTX_new();
1068
1069 if (port == NULL || vpm == NULL || cctx == NULL) {
1070 BIO_printf(bio_err, "%s: out of memory\n", opt_getprog());
1071 goto end;
1072 }
1073
1074 cbuf = app_malloc(BUFSIZZ, "cbuf");
1075 sbuf = app_malloc(BUFSIZZ, "sbuf");
1076 mbuf = app_malloc(BUFSIZZ, "mbuf");
1077
1078 SSL_CONF_CTX_set_flags(cctx, SSL_CONF_FLAG_CLIENT | SSL_CONF_FLAG_CMDLINE);
1079
1080 prog = opt_init(argc, argv, s_client_options);
1081 while ((o = opt_next()) != OPT_EOF) {
1082 /* Check for intermixing flags. */
1083 if (connect_type == use_unix && IS_INET_FLAG(o)) {
1084 BIO_printf(bio_err,
1085 "%s: Intermixed protocol flags (unix and internet domains)\n",
1086 prog);
1087 goto end;
1088 }
1089 if (connect_type == use_inet && IS_UNIX_FLAG(o)) {
1090 BIO_printf(bio_err,
1091 "%s: Intermixed protocol flags (internet and unix domains)\n",
1092 prog);
1093 goto end;
1094 }
1095
1096 if (IS_PROT_FLAG(o) && ++prot_opt > 1) {
1097 BIO_printf(bio_err, "Cannot supply multiple protocol flags\n");
1098 goto end;
1099 }
1100 if (IS_NO_PROT_FLAG(o))
1101 no_prot_opt++;
1102 if (prot_opt == 1 && no_prot_opt) {
1103 BIO_printf(bio_err,
1104 "Cannot supply both a protocol flag and '-no_<prot>'\n");
1105 goto end;
1106 }
1107
1108 switch (o) {
1109 case OPT_EOF:
1110 case OPT_ERR:
1111 opthelp:
1112 BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
1113 goto end;
1114 case OPT_HELP:
1115 opt_help(s_client_options);
1116 ret = 0;
1117 goto end;
1118 case OPT_4:
1119 connect_type = use_inet;
1120 socket_family = AF_INET;
1121 count4or6++;
1122 break;
1123 #ifdef AF_INET6
1124 case OPT_6:
1125 connect_type = use_inet;
1126 socket_family = AF_INET6;
1127 count4or6++;
1128 break;
1129 #endif
1130 case OPT_HOST:
1131 connect_type = use_inet;
1132 freeandcopy(&host, opt_arg());
1133 break;
1134 case OPT_PORT:
1135 connect_type = use_inet;
1136 freeandcopy(&port, opt_arg());
1137 break;
1138 case OPT_CONNECT:
1139 connect_type = use_inet;
1140 freeandcopy(&connectstr, opt_arg());
1141 break;
1142 case OPT_BIND:
1143 freeandcopy(&bindstr, opt_arg());
1144 break;
1145 case OPT_PROXY:
1146 proxystr = opt_arg();
1147 break;
1148 case OPT_PROXY_USER:
1149 proxyuser = opt_arg();
1150 break;
1151 case OPT_PROXY_PASS:
1152 proxypassarg = opt_arg();
1153 break;
1154 #ifdef AF_UNIX
1155 case OPT_UNIX:
1156 connect_type = use_unix;
1157 socket_family = AF_UNIX;
1158 freeandcopy(&host, opt_arg());
1159 break;
1160 #endif
1161 case OPT_XMPPHOST:
1162 /* fall through, since this is an alias */
1163 case OPT_PROTOHOST:
1164 protohost = opt_arg();
1165 break;
1166 case OPT_VERIFY:
1167 verify = SSL_VERIFY_PEER;
1168 verify_args.depth = atoi(opt_arg());
1169 if (!c_quiet)
1170 BIO_printf(bio_err, "verify depth is %d\n", verify_args.depth);
1171 break;
1172 case OPT_CERT:
1173 cert_file = opt_arg();
1174 break;
1175 case OPT_NAMEOPT:
1176 if (!set_nameopt(opt_arg()))
1177 goto end;
1178 break;
1179 case OPT_CRL:
1180 crl_file = opt_arg();
1181 break;
1182 case OPT_CRL_DOWNLOAD:
1183 crl_download = 1;
1184 break;
1185 case OPT_SESS_OUT:
1186 sess_out = opt_arg();
1187 break;
1188 case OPT_SESS_IN:
1189 sess_in = opt_arg();
1190 break;
1191 case OPT_CERTFORM:
1192 if (!opt_format(opt_arg(), OPT_FMT_ANY, &cert_format))
1193 goto opthelp;
1194 break;
1195 case OPT_CRLFORM:
1196 if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &crl_format))
1197 goto opthelp;
1198 break;
1199 case OPT_VERIFY_RET_ERROR:
1200 verify = SSL_VERIFY_PEER;
1201 verify_args.return_error = 1;
1202 break;
1203 case OPT_VERIFY_QUIET:
1204 verify_args.quiet = 1;
1205 break;
1206 case OPT_BRIEF:
1207 c_brief = verify_args.quiet = c_quiet = 1;
1208 break;
1209 case OPT_S_CASES:
1210 if (ssl_args == NULL)
1211 ssl_args = sk_OPENSSL_STRING_new_null();
1212 if (ssl_args == NULL
1213 || !sk_OPENSSL_STRING_push(ssl_args, opt_flag())
1214 || !sk_OPENSSL_STRING_push(ssl_args, opt_arg())) {
1215 BIO_printf(bio_err, "%s: Memory allocation failure\n", prog);
1216 goto end;
1217 }
1218 break;
1219 case OPT_V_CASES:
1220 if (!opt_verify(o, vpm))
1221 goto end;
1222 vpmtouched++;
1223 break;
1224 case OPT_X_CASES:
1225 if (!args_excert(o, &exc))
1226 goto end;
1227 break;
1228 case OPT_IGNORE_UNEXPECTED_EOF:
1229 ignore_unexpected_eof = 1;
1230 break;
1231 case OPT_PREXIT:
1232 prexit = 1;
1233 break;
1234 case OPT_NO_INTERACTIVE:
1235 nointeractive = 1;
1236 break;
1237 case OPT_CRLF:
1238 crlf = 1;
1239 break;
1240 case OPT_QUIET:
1241 c_quiet = c_ign_eof = 1;
1242 break;
1243 case OPT_NBIO:
1244 c_nbio = 1;
1245 break;
1246 case OPT_NOCMDS:
1247 cmdmode = USER_DATA_MODE_NONE;
1248 break;
1249 case OPT_ADV:
1250 cmdmode = USER_DATA_MODE_ADVANCED;
1251 break;
1252 case OPT_ENGINE:
1253 e = setup_engine(opt_arg(), 1);
1254 break;
1255 case OPT_SSL_CLIENT_ENGINE:
1256 #ifndef OPENSSL_NO_ENGINE
1257 ssl_client_engine = setup_engine(opt_arg(), 0);
1258 if (ssl_client_engine == NULL) {
1259 BIO_printf(bio_err, "Error getting client auth engine\n");
1260 goto opthelp;
1261 }
1262 #endif
1263 break;
1264 case OPT_R_CASES:
1265 if (!opt_rand(o))
1266 goto end;
1267 break;
1268 case OPT_PROV_CASES:
1269 if (!opt_provider(o))
1270 goto end;
1271 break;
1272 case OPT_IGN_EOF:
1273 c_ign_eof = 1;
1274 break;
1275 case OPT_NO_IGN_EOF:
1276 c_ign_eof = 0;
1277 break;
1278 case OPT_DEBUG:
1279 c_debug = 1;
1280 break;
1281 case OPT_TLSEXTDEBUG:
1282 c_tlsextdebug = 1;
1283 break;
1284 case OPT_STATUS:
1285 #ifndef OPENSSL_NO_OCSP
1286 c_status_req = 1;
1287 #endif
1288 break;
1289 case OPT_WDEBUG:
1290 #ifdef WATT32
1291 dbug_init();
1292 #endif
1293 break;
1294 case OPT_MSG:
1295 c_msg = 1;
1296 break;
1297 case OPT_MSGFILE:
1298 bio_c_msg = BIO_new_file(opt_arg(), "w");
1299 if (bio_c_msg == NULL) {
1300 BIO_printf(bio_err, "Error writing file %s\n", opt_arg());
1301 goto end;
1302 }
1303 break;
1304 case OPT_TRACE:
1305 #ifndef OPENSSL_NO_SSL_TRACE
1306 c_msg = 2;
1307 #endif
1308 break;
1309 case OPT_SECURITY_DEBUG:
1310 sdebug = 1;
1311 break;
1312 case OPT_SECURITY_DEBUG_VERBOSE:
1313 sdebug = 2;
1314 break;
1315 case OPT_SHOWCERTS:
1316 c_showcerts = 1;
1317 break;
1318 case OPT_NBIO_TEST:
1319 nbio_test = 1;
1320 break;
1321 case OPT_STATE:
1322 state = 1;
1323 break;
1324 case OPT_PSK_IDENTITY:
1325 psk_identity = opt_arg();
1326 break;
1327 case OPT_PSK:
1328 for (p = psk_key = opt_arg(); *p; p++) {
1329 if (isxdigit(_UC(*p)))
1330 continue;
1331 BIO_printf(bio_err, "Not a hex number '%s'\n", psk_key);
1332 goto end;
1333 }
1334 break;
1335 case OPT_PSK_SESS:
1336 psksessf = opt_arg();
1337 break;
1338 #ifndef OPENSSL_NO_SRP
1339 case OPT_SRPUSER:
1340 srp_arg.srplogin = opt_arg();
1341 if (min_version < TLS1_VERSION)
1342 min_version = TLS1_VERSION;
1343 break;
1344 case OPT_SRPPASS:
1345 srppass = opt_arg();
1346 if (min_version < TLS1_VERSION)
1347 min_version = TLS1_VERSION;
1348 break;
1349 case OPT_SRP_STRENGTH:
1350 srp_arg.strength = atoi(opt_arg());
1351 BIO_printf(bio_err, "SRP minimal length for N is %d\n",
1352 srp_arg.strength);
1353 if (min_version < TLS1_VERSION)
1354 min_version = TLS1_VERSION;
1355 break;
1356 case OPT_SRP_LATEUSER:
1357 srp_lateuser = 1;
1358 if (min_version < TLS1_VERSION)
1359 min_version = TLS1_VERSION;
1360 break;
1361 case OPT_SRP_MOREGROUPS:
1362 srp_arg.amp = 1;
1363 if (min_version < TLS1_VERSION)
1364 min_version = TLS1_VERSION;
1365 break;
1366 #endif
1367 case OPT_SSL_CONFIG:
1368 ssl_config = opt_arg();
1369 break;
1370 case OPT_SSL3:
1371 min_version = SSL3_VERSION;
1372 max_version = SSL3_VERSION;
1373 socket_type = SOCK_STREAM;
1374 #ifndef OPENSSL_NO_DTLS
1375 isdtls = 0;
1376 #endif
1377 isquic = 0;
1378 break;
1379 case OPT_TLS1_3:
1380 min_version = TLS1_3_VERSION;
1381 max_version = TLS1_3_VERSION;
1382 socket_type = SOCK_STREAM;
1383 #ifndef OPENSSL_NO_DTLS
1384 isdtls = 0;
1385 #endif
1386 isquic = 0;
1387 break;
1388 case OPT_TLS1_2:
1389 min_version = TLS1_2_VERSION;
1390 max_version = TLS1_2_VERSION;
1391 socket_type = SOCK_STREAM;
1392 #ifndef OPENSSL_NO_DTLS
1393 isdtls = 0;
1394 #endif
1395 isquic = 0;
1396 break;
1397 case OPT_TLS1_1:
1398 min_version = TLS1_1_VERSION;
1399 max_version = TLS1_1_VERSION;
1400 socket_type = SOCK_STREAM;
1401 #ifndef OPENSSL_NO_DTLS
1402 isdtls = 0;
1403 #endif
1404 isquic = 0;
1405 break;
1406 case OPT_TLS1:
1407 min_version = TLS1_VERSION;
1408 max_version = TLS1_VERSION;
1409 socket_type = SOCK_STREAM;
1410 #ifndef OPENSSL_NO_DTLS
1411 isdtls = 0;
1412 #endif
1413 isquic = 0;
1414 break;
1415 case OPT_DTLS:
1416 #ifndef OPENSSL_NO_DTLS
1417 meth = DTLS_client_method();
1418 socket_type = SOCK_DGRAM;
1419 isdtls = 1;
1420 isquic = 0;
1421 #endif
1422 break;
1423 case OPT_DTLS1:
1424 #ifndef OPENSSL_NO_DTLS1
1425 meth = DTLS_client_method();
1426 min_version = DTLS1_VERSION;
1427 max_version = DTLS1_VERSION;
1428 socket_type = SOCK_DGRAM;
1429 isdtls = 1;
1430 isquic = 0;
1431 #endif
1432 break;
1433 case OPT_DTLS1_2:
1434 #ifndef OPENSSL_NO_DTLS1_2
1435 meth = DTLS_client_method();
1436 min_version = DTLS1_2_VERSION;
1437 max_version = DTLS1_2_VERSION;
1438 socket_type = SOCK_DGRAM;
1439 isdtls = 1;
1440 isquic = 0;
1441 #endif
1442 break;
1443 case OPT_QUIC:
1444 #ifndef OPENSSL_NO_QUIC
1445 meth = OSSL_QUIC_client_method();
1446 min_version = 0;
1447 max_version = 0;
1448 socket_type = SOCK_DGRAM;
1449 #ifndef OPENSSL_NO_DTLS
1450 isdtls = 0;
1451 #endif
1452 isquic = 1;
1453 #endif
1454 break;
1455 case OPT_SCTP:
1456 #ifndef OPENSSL_NO_SCTP
1457 protocol = IPPROTO_SCTP;
1458 #endif
1459 break;
1460 case OPT_SCTP_LABEL_BUG:
1461 #ifndef OPENSSL_NO_SCTP
1462 sctp_label_bug = 1;
1463 #endif
1464 break;
1465 case OPT_TIMEOUT:
1466 #ifndef OPENSSL_NO_DTLS
1467 enable_timeouts = 1;
1468 #endif
1469 break;
1470 case OPT_MTU:
1471 #ifndef OPENSSL_NO_DTLS
1472 socket_mtu = atol(opt_arg());
1473 #endif
1474 break;
1475 case OPT_FALLBACKSCSV:
1476 fallback_scsv = 1;
1477 break;
1478 case OPT_KEYFORM:
1479 if (!opt_format(opt_arg(), OPT_FMT_ANY, &key_format))
1480 goto opthelp;
1481 break;
1482 case OPT_PASS:
1483 passarg = opt_arg();
1484 break;
1485 case OPT_CERT_CHAIN:
1486 chain_file = opt_arg();
1487 break;
1488 case OPT_KEY:
1489 key_file = opt_arg();
1490 break;
1491 case OPT_RECONNECT:
1492 reconnect = 5;
1493 break;
1494 case OPT_CAPATH:
1495 CApath = opt_arg();
1496 break;
1497 case OPT_NOCAPATH:
1498 noCApath = 1;
1499 break;
1500 case OPT_CHAINCAPATH:
1501 chCApath = opt_arg();
1502 break;
1503 case OPT_VERIFYCAPATH:
1504 vfyCApath = opt_arg();
1505 break;
1506 case OPT_BUILD_CHAIN:
1507 build_chain = 1;
1508 break;
1509 case OPT_REQCAFILE:
1510 ReqCAfile = opt_arg();
1511 break;
1512 case OPT_CAFILE:
1513 CAfile = opt_arg();
1514 break;
1515 case OPT_NOCAFILE:
1516 noCAfile = 1;
1517 break;
1518 #ifndef OPENSSL_NO_CT
1519 case OPT_NOCT:
1520 ct_validation = 0;
1521 break;
1522 case OPT_CT:
1523 ct_validation = 1;
1524 break;
1525 case OPT_CTLOG_FILE:
1526 ctlog_file = opt_arg();
1527 break;
1528 #endif
1529 case OPT_CHAINCAFILE:
1530 chCAfile = opt_arg();
1531 break;
1532 case OPT_VERIFYCAFILE:
1533 vfyCAfile = opt_arg();
1534 break;
1535 case OPT_CASTORE:
1536 CAstore = opt_arg();
1537 break;
1538 case OPT_NOCASTORE:
1539 noCAstore = 1;
1540 break;
1541 case OPT_CHAINCASTORE:
1542 chCAstore = opt_arg();
1543 break;
1544 case OPT_VERIFYCASTORE:
1545 vfyCAstore = opt_arg();
1546 break;
1547 case OPT_DANE_TLSA_DOMAIN:
1548 dane_tlsa_domain = opt_arg();
1549 break;
1550 case OPT_DANE_TLSA_RRDATA:
1551 if (dane_tlsa_rrset == NULL)
1552 dane_tlsa_rrset = sk_OPENSSL_STRING_new_null();
1553 if (dane_tlsa_rrset == NULL || !sk_OPENSSL_STRING_push(dane_tlsa_rrset, opt_arg())) {
1554 BIO_printf(bio_err, "%s: Memory allocation failure\n", prog);
1555 goto end;
1556 }
1557 break;
1558 case OPT_DANE_EE_NO_NAME:
1559 dane_ee_no_name = 1;
1560 break;
1561 case OPT_NEXTPROTONEG:
1562 #ifndef OPENSSL_NO_NEXTPROTONEG
1563 next_proto_neg_in = opt_arg();
1564 #endif
1565 break;
1566 case OPT_ALPN:
1567 alpn_in = opt_arg();
1568 break;
1569 case OPT_SERVERINFO:
1570 p = opt_arg();
1571 len = strlen(p);
1572 for (start = 0, i = 0; i <= len; ++i) {
1573 if (i == len || p[i] == ',') {
1574 serverinfo_types[serverinfo_count] = atoi(p + start);
1575 if (++serverinfo_count == MAX_SI_TYPES)
1576 break;
1577 start = i + 1;
1578 }
1579 }
1580 break;
1581 case OPT_STARTTLS:
1582 if (!opt_pair(opt_arg(), services, &starttls_proto))
1583 goto end;
1584 break;
1585 case OPT_TFO:
1586 tfo = 1;
1587 break;
1588 case OPT_SERVERNAME:
1589 servername = opt_arg();
1590 break;
1591 case OPT_NOSERVERNAME:
1592 noservername = 1;
1593 break;
1594 case OPT_USE_SRTP:
1595 #ifndef OPENSSL_NO_SRTP
1596 srtp_profiles = opt_arg();
1597 #endif
1598 break;
1599 case OPT_KEYMATEXPORT:
1600 keymatexportlabel = opt_arg();
1601 break;
1602 case OPT_KEYMATEXPORTLEN:
1603 keymatexportlen = atoi(opt_arg());
1604 break;
1605 case OPT_ASYNC:
1606 async = 1;
1607 break;
1608 case OPT_MAXFRAGLEN:
1609 len = atoi(opt_arg());
1610 switch (len) {
1611 case 512:
1612 maxfraglen = TLSEXT_max_fragment_length_512;
1613 break;
1614 case 1024:
1615 maxfraglen = TLSEXT_max_fragment_length_1024;
1616 break;
1617 case 2048:
1618 maxfraglen = TLSEXT_max_fragment_length_2048;
1619 break;
1620 case 4096:
1621 maxfraglen = TLSEXT_max_fragment_length_4096;
1622 break;
1623 default:
1624 BIO_printf(bio_err,
1625 "%s: Max Fragment Len %u is out of permitted values",
1626 prog, len);
1627 goto opthelp;
1628 }
1629 break;
1630 case OPT_MAX_SEND_FRAG:
1631 max_send_fragment = atoi(opt_arg());
1632 break;
1633 case OPT_SPLIT_SEND_FRAG:
1634 split_send_fragment = atoi(opt_arg());
1635 break;
1636 case OPT_MAX_PIPELINES:
1637 max_pipelines = atoi(opt_arg());
1638 break;
1639 case OPT_READ_BUF:
1640 read_buf_len = atoi(opt_arg());
1641 break;
1642 case OPT_KEYLOG_FILE:
1643 keylog_file = opt_arg();
1644 break;
1645 case OPT_EARLY_DATA:
1646 early_data_file = opt_arg();
1647 break;
1648 case OPT_ENABLE_PHA:
1649 enable_pha = 1;
1650 break;
1651 case OPT_KTLS:
1652 #ifndef OPENSSL_NO_KTLS
1653 enable_ktls = 1;
1654 #endif
1655 break;
1656 case OPT_ENABLE_SERVER_RPK:
1657 enable_server_rpk = 1;
1658 break;
1659 case OPT_ENABLE_CLIENT_RPK:
1660 enable_client_rpk = 1;
1661 break;
1662 }
1663 }
1664
1665 /* Optional argument is connect string if -connect not used. */
1666 if (opt_num_rest() == 1) {
1667 /* Don't allow -connect and a separate argument. */
1668 if (connectstr != NULL) {
1669 BIO_printf(bio_err,
1670 "%s: cannot provide both -connect option and target parameter\n",
1671 prog);
1672 goto opthelp;
1673 }
1674 connect_type = use_inet;
1675 freeandcopy(&connectstr, *opt_rest());
1676 } else if (!opt_check_rest_arg(NULL)) {
1677 goto opthelp;
1678 }
1679 if (!app_RAND_load())
1680 goto end;
1681
1682 if (c_ign_eof)
1683 cmdmode = USER_DATA_MODE_NONE;
1684
1685 if (count4or6 >= 2) {
1686 BIO_printf(bio_err, "%s: Can't use both -4 and -6\n", prog);
1687 goto opthelp;
1688 }
1689 if (noservername) {
1690 if (servername != NULL) {
1691 BIO_printf(bio_err,
1692 "%s: Can't use -servername and -noservername together\n",
1693 prog);
1694 goto opthelp;
1695 }
1696 if (dane_tlsa_domain != NULL) {
1697 BIO_printf(bio_err,
1698 "%s: Can't use -dane_tlsa_domain and -noservername together\n",
1699 prog);
1700 goto opthelp;
1701 }
1702 }
1703
1704 #ifndef OPENSSL_NO_NEXTPROTONEG
1705 if (min_version == TLS1_3_VERSION && next_proto_neg_in != NULL) {
1706 BIO_printf(bio_err, "Cannot supply -nextprotoneg with TLSv1.3\n");
1707 goto opthelp;
1708 }
1709 #endif
1710
1711 if (connectstr != NULL) {
1712 int res;
1713 char *tmp_host = host, *tmp_port = port;
1714
1715 res = BIO_parse_hostserv(connectstr, &host, &port, BIO_PARSE_PRIO_HOST);
1716 if (tmp_host != host)
1717 OPENSSL_free(tmp_host);
1718 if (tmp_port != port)
1719 OPENSSL_free(tmp_port);
1720 if (!res) {
1721 BIO_printf(bio_err,
1722 "%s: -connect argument or target parameter malformed or ambiguous\n",
1723 prog);
1724 goto end;
1725 }
1726 }
1727
1728 if (proxystr != NULL) {
1729 #ifndef OPENSSL_NO_HTTP
1730 int res;
1731 char *tmp_host = host, *tmp_port = port;
1732
1733 if (host == NULL || port == NULL) {
1734 BIO_printf(bio_err, "%s: -proxy requires use of -connect or target parameter\n", prog);
1735 goto opthelp;
1736 }
1737
1738 if (servername == NULL && !noservername) {
1739 servername = sname_alloc = OPENSSL_strdup(host);
1740 if (sname_alloc == NULL) {
1741 BIO_printf(bio_err, "%s: out of memory\n", prog);
1742 goto end;
1743 }
1744 }
1745
1746 /* Retain the original target host:port for use in the HTTP proxy connect string */
1747 thost = OPENSSL_strdup(host);
1748 tport = OPENSSL_strdup(port);
1749 if (thost == NULL || tport == NULL) {
1750 BIO_printf(bio_err, "%s: out of memory\n", prog);
1751 goto end;
1752 }
1753
1754 res = BIO_parse_hostserv(proxystr, &host, &port, BIO_PARSE_PRIO_HOST);
1755 if (tmp_host != host)
1756 OPENSSL_free(tmp_host);
1757 if (tmp_port != port)
1758 OPENSSL_free(tmp_port);
1759 if (!res) {
1760 BIO_printf(bio_err,
1761 "%s: -proxy argument malformed or ambiguous\n", prog);
1762 goto end;
1763 }
1764 #else
1765 BIO_printf(bio_err,
1766 "%s: -proxy not supported in no-http build\n", prog);
1767 goto end;
1768 #endif
1769 }
1770
1771 if (bindstr != NULL) {
1772 int res;
1773 res = BIO_parse_hostserv(bindstr, &bindhost, &bindport,
1774 BIO_PARSE_PRIO_HOST);
1775 if (!res) {
1776 BIO_printf(bio_err,
1777 "%s: -bind argument parameter malformed or ambiguous\n",
1778 prog);
1779 goto end;
1780 }
1781 }
1782
1783 #ifdef AF_UNIX
1784 if (socket_family == AF_UNIX && socket_type != SOCK_STREAM) {
1785 BIO_printf(bio_err,
1786 "Can't use unix sockets and datagrams together\n");
1787 goto end;
1788 }
1789 #endif
1790
1791 #ifndef OPENSSL_NO_SCTP
1792 if (protocol == IPPROTO_SCTP) {
1793 if (socket_type != SOCK_DGRAM) {
1794 BIO_printf(bio_err, "Can't use -sctp without DTLS\n");
1795 goto end;
1796 }
1797 /* SCTP is unusual. It uses DTLS over a SOCK_STREAM protocol */
1798 socket_type = SOCK_STREAM;
1799 }
1800 #endif
1801
1802 #if !defined(OPENSSL_NO_NEXTPROTONEG)
1803 next_proto.status = -1;
1804 if (next_proto_neg_in) {
1805 next_proto.data = next_protos_parse(&next_proto.len, next_proto_neg_in);
1806 if (next_proto.data == NULL) {
1807 BIO_printf(bio_err, "Error parsing -nextprotoneg argument\n");
1808 goto end;
1809 }
1810 } else
1811 next_proto.data = NULL;
1812 #endif
1813
1814 if (!app_passwd(passarg, NULL, &pass, NULL)) {
1815 BIO_printf(bio_err, "Error getting private key password\n");
1816 goto end;
1817 }
1818
1819 if (!app_passwd(proxypassarg, NULL, &proxypass, NULL)) {
1820 BIO_printf(bio_err, "Error getting proxy password\n");
1821 goto end;
1822 }
1823
1824 if (proxypass != NULL && proxyuser == NULL) {
1825 BIO_printf(bio_err, "Error: Must specify proxy_user with proxy_pass\n");
1826 goto end;
1827 }
1828
1829 if (key_file == NULL)
1830 key_file = cert_file;
1831
1832 if (key_file != NULL) {
1833 key = load_key(key_file, key_format, 0, pass, e,
1834 "client certificate private key");
1835 if (key == NULL)
1836 goto end;
1837 }
1838
1839 if (cert_file != NULL) {
1840 cert = load_cert_pass(cert_file, cert_format, 1, pass,
1841 "client certificate");
1842 if (cert == NULL)
1843 goto end;
1844 }
1845
1846 if (chain_file != NULL) {
1847 if (!load_certs(chain_file, 0, &chain, pass, "client certificate chain"))
1848 goto end;
1849 }
1850
1851 if (crl_file != NULL) {
1852 X509_CRL *crl;
1853 crl = load_crl(crl_file, crl_format, 0, "CRL");
1854 if (crl == NULL)
1855 goto end;
1856 crls = sk_X509_CRL_new_null();
1857 if (crls == NULL || !sk_X509_CRL_push(crls, crl)) {
1858 BIO_puts(bio_err, "Error adding CRL\n");
1859 ERR_print_errors(bio_err);
1860 X509_CRL_free(crl);
1861 goto end;
1862 }
1863 }
1864
1865 if (!load_excert(&exc))
1866 goto end;
1867
1868 if (bio_c_out == NULL) {
1869 if (c_quiet && !c_debug) {
1870 bio_c_out = BIO_new(BIO_s_null());
1871 if (c_msg && bio_c_msg == NULL) {
1872 bio_c_msg = dup_bio_out(FORMAT_TEXT);
1873 if (bio_c_msg == NULL) {
1874 BIO_printf(bio_err, "Out of memory\n");
1875 goto end;
1876 }
1877 }
1878 } else {
1879 bio_c_out = dup_bio_out(FORMAT_TEXT);
1880 }
1881
1882 if (bio_c_out == NULL) {
1883 BIO_printf(bio_err, "Unable to create BIO\n");
1884 goto end;
1885 }
1886 }
1887 #ifndef OPENSSL_NO_SRP
1888 if (!app_passwd(srppass, NULL, &srp_arg.srppassin, NULL)) {
1889 BIO_printf(bio_err, "Error getting password\n");
1890 goto end;
1891 }
1892 #endif
1893
1894 ctx = SSL_CTX_new_ex(app_get0_libctx(), app_get0_propq(), meth);
1895 if (ctx == NULL) {
1896 ERR_print_errors(bio_err);
1897 goto end;
1898 }
1899
1900 SSL_CTX_clear_mode(ctx, SSL_MODE_AUTO_RETRY);
1901
1902 if (sdebug)
1903 ssl_ctx_security_debug(ctx, sdebug);
1904
1905 if (!config_ctx(cctx, ssl_args, ctx))
1906 goto end;
1907
1908 if (ssl_config != NULL) {
1909 if (SSL_CTX_config(ctx, ssl_config) == 0) {
1910 BIO_printf(bio_err, "Error using configuration \"%s\"\n",
1911 ssl_config);
1912 ERR_print_errors(bio_err);
1913 goto end;
1914 }
1915 }
1916
1917 #ifndef OPENSSL_NO_SCTP
1918 if (protocol == IPPROTO_SCTP && sctp_label_bug == 1)
1919 SSL_CTX_set_mode(ctx, SSL_MODE_DTLS_SCTP_LABEL_LENGTH_BUG);
1920 #endif
1921
1922 if (min_version != 0
1923 && SSL_CTX_set_min_proto_version(ctx, min_version) == 0)
1924 goto end;
1925 if (max_version != 0
1926 && SSL_CTX_set_max_proto_version(ctx, max_version) == 0)
1927 goto end;
1928
1929 if (ignore_unexpected_eof)
1930 SSL_CTX_set_options(ctx, SSL_OP_IGNORE_UNEXPECTED_EOF);
1931 #ifndef OPENSSL_NO_KTLS
1932 if (enable_ktls)
1933 SSL_CTX_set_options(ctx, SSL_OP_ENABLE_KTLS);
1934 #endif
1935
1936 if (vpmtouched && !SSL_CTX_set1_param(ctx, vpm)) {
1937 BIO_printf(bio_err, "Error setting verify params\n");
1938 ERR_print_errors(bio_err);
1939 goto end;
1940 }
1941
1942 if (async) {
1943 SSL_CTX_set_mode(ctx, SSL_MODE_ASYNC);
1944 }
1945
1946 if (max_send_fragment > 0
1947 && !SSL_CTX_set_max_send_fragment(ctx, max_send_fragment)) {
1948 BIO_printf(bio_err, "%s: Max send fragment size %u is out of permitted range\n",
1949 prog, max_send_fragment);
1950 goto end;
1951 }
1952
1953 if (split_send_fragment > 0
1954 && !SSL_CTX_set_split_send_fragment(ctx, split_send_fragment)) {
1955 BIO_printf(bio_err, "%s: Split send fragment size %u is out of permitted range\n",
1956 prog, split_send_fragment);
1957 goto end;
1958 }
1959
1960 if (max_pipelines > 0
1961 && !SSL_CTX_set_max_pipelines(ctx, max_pipelines)) {
1962 BIO_printf(bio_err, "%s: Max pipelines %u is out of permitted range\n",
1963 prog, max_pipelines);
1964 goto end;
1965 }
1966
1967 if (read_buf_len > 0) {
1968 SSL_CTX_set_default_read_buffer_len(ctx, read_buf_len);
1969 }
1970
1971 if (maxfraglen > 0
1972 && !SSL_CTX_set_tlsext_max_fragment_length(ctx, maxfraglen)) {
1973 BIO_printf(bio_err,
1974 "%s: Max Fragment Length code %u is out of permitted values"
1975 "\n",
1976 prog, maxfraglen);
1977 goto end;
1978 }
1979
1980 if (!ssl_load_stores(ctx,
1981 vfyCApath, vfyCAfile, vfyCAstore,
1982 chCApath, chCAfile, chCAstore,
1983 crls, crl_download)) {
1984 BIO_printf(bio_err, "Error loading store locations\n");
1985 ERR_print_errors(bio_err);
1986 goto end;
1987 }
1988 if (ReqCAfile != NULL) {
1989 STACK_OF(X509_NAME) *nm = sk_X509_NAME_new_null();
1990
1991 if (nm == NULL || !SSL_add_file_cert_subjects_to_stack(nm, ReqCAfile)) {
1992 sk_X509_NAME_pop_free(nm, X509_NAME_free);
1993 BIO_printf(bio_err, "Error loading CA names\n");
1994 ERR_print_errors(bio_err);
1995 goto end;
1996 }
1997 SSL_CTX_set0_CA_list(ctx, nm);
1998 }
1999 #ifndef OPENSSL_NO_ENGINE
2000 if (ssl_client_engine) {
2001 if (!SSL_CTX_set_client_cert_engine(ctx, ssl_client_engine)) {
2002 BIO_puts(bio_err, "Error setting client auth engine\n");
2003 ERR_print_errors(bio_err);
2004 release_engine(ssl_client_engine);
2005 goto end;
2006 }
2007 release_engine(ssl_client_engine);
2008 }
2009 #endif
2010
2011 #ifndef OPENSSL_NO_PSK
2012 if (psk_key != NULL) {
2013 if (c_debug)
2014 BIO_printf(bio_c_out, "PSK key given, setting client callback\n");
2015 SSL_CTX_set_psk_client_callback(ctx, psk_client_cb);
2016 }
2017 #endif
2018 if (psksessf != NULL) {
2019 BIO *stmp = BIO_new_file(psksessf, "r");
2020
2021 if (stmp == NULL) {
2022 BIO_printf(bio_err, "Can't open PSK session file %s\n", psksessf);
2023 ERR_print_errors(bio_err);
2024 goto end;
2025 }
2026 psksess = PEM_read_bio_SSL_SESSION(stmp, NULL, 0, NULL);
2027 BIO_free(stmp);
2028 if (psksess == NULL) {
2029 BIO_printf(bio_err, "Can't read PSK session file %s\n", psksessf);
2030 ERR_print_errors(bio_err);
2031 goto end;
2032 }
2033 }
2034 if (psk_key != NULL || psksess != NULL)
2035 SSL_CTX_set_psk_use_session_callback(ctx, psk_use_session_cb);
2036
2037 #ifndef OPENSSL_NO_SRTP
2038 if (srtp_profiles != NULL) {
2039 /* Returns 0 on success! */
2040 if (SSL_CTX_set_tlsext_use_srtp(ctx, srtp_profiles) != 0) {
2041 BIO_printf(bio_err, "Error setting SRTP profile\n");
2042 ERR_print_errors(bio_err);
2043 goto end;
2044 }
2045 }
2046 #endif
2047
2048 if (exc != NULL)
2049 ssl_ctx_set_excert(ctx, exc);
2050
2051 #if !defined(OPENSSL_NO_NEXTPROTONEG)
2052 if (next_proto.data != NULL)
2053 SSL_CTX_set_next_proto_select_cb(ctx, next_proto_cb, &next_proto);
2054 #endif
2055 if (alpn_in) {
2056 size_t alpn_len;
2057 unsigned char *alpn = next_protos_parse(&alpn_len, alpn_in);
2058
2059 if (alpn == NULL) {
2060 BIO_printf(bio_err, "Error parsing -alpn argument\n");
2061 goto end;
2062 }
2063 /* Returns 0 on success! */
2064 if (SSL_CTX_set_alpn_protos(ctx, alpn, alpn_len) != 0) {
2065 BIO_printf(bio_err, "Error setting ALPN\n");
2066 goto end;
2067 }
2068 OPENSSL_free(alpn);
2069 }
2070
2071 for (i = 0; i < serverinfo_count; i++) {
2072 if (!SSL_CTX_add_client_custom_ext(ctx,
2073 serverinfo_types[i],
2074 NULL, NULL, NULL,
2075 serverinfo_cli_parse_cb, NULL)) {
2076 BIO_printf(bio_err,
2077 "Warning: Unable to add custom extension %u, skipping\n",
2078 serverinfo_types[i]);
2079 }
2080 }
2081
2082 if (state)
2083 SSL_CTX_set_info_callback(ctx, apps_ssl_info_callback);
2084
2085 #ifndef OPENSSL_NO_CT
2086 /* Enable SCT processing, without early connection termination */
2087 if (ct_validation && !SSL_CTX_enable_ct(ctx, SSL_CT_VALIDATION_PERMISSIVE)) {
2088 ERR_print_errors(bio_err);
2089 goto end;
2090 }
2091
2092 if (!ctx_set_ctlog_list_file(ctx, ctlog_file)) {
2093 if (ct_validation) {
2094 ERR_print_errors(bio_err);
2095 goto end;
2096 }
2097
2098 /*
2099 * If CT validation is not enabled, the log list isn't needed so don't
2100 * show errors or abort. We try to load it regardless because then we
2101 * can show the names of the logs any SCTs came from (SCTs may be seen
2102 * even with validation disabled).
2103 */
2104 ERR_clear_error();
2105 }
2106 #endif
2107
2108 SSL_CTX_set_verify(ctx, verify, verify_callback);
2109
2110 if (!ctx_set_verify_locations(ctx, CAfile, noCAfile, CApath, noCApath,
2111 CAstore, noCAstore)) {
2112 ERR_print_errors(bio_err);
2113 goto end;
2114 }
2115
2116 ssl_ctx_add_crls(ctx, crls, crl_download);
2117
2118 if (!set_cert_key_stuff(ctx, cert, key, chain, build_chain))
2119 goto end;
2120
2121 if (!noservername) {
2122 tlsextcbp.biodebug = bio_err;
2123 SSL_CTX_set_tlsext_servername_callback(ctx, ssl_servername_cb);
2124 SSL_CTX_set_tlsext_servername_arg(ctx, &tlsextcbp);
2125 }
2126 #ifndef OPENSSL_NO_SRP
2127 if (srp_arg.srplogin != NULL
2128 && !set_up_srp_arg(ctx, &srp_arg, srp_lateuser, c_msg, c_debug))
2129 goto end;
2130 #endif
2131
2132 if (dane_tlsa_domain != NULL) {
2133 if (SSL_CTX_dane_enable(ctx) <= 0) {
2134 BIO_printf(bio_err,
2135 "%s: Error enabling DANE TLSA authentication.\n",
2136 prog);
2137 ERR_print_errors(bio_err);
2138 goto end;
2139 }
2140 }
2141
2142 /*
2143 * In TLSv1.3 NewSessionTicket messages arrive after the handshake and can
2144 * come at any time. Therefore, we use a callback to write out the session
2145 * when we know about it. This approach works for < TLSv1.3 as well.
2146 */
2147 SSL_CTX_set_session_cache_mode(ctx, SSL_SESS_CACHE_CLIENT | SSL_SESS_CACHE_NO_INTERNAL_STORE);
2148 SSL_CTX_sess_set_new_cb(ctx, new_session_cb);
2149
2150 if (set_keylog_file(ctx, keylog_file))
2151 goto end;
2152
2153 con = SSL_new(ctx);
2154 if (con == NULL)
2155 goto end;
2156
2157 if (enable_pha)
2158 SSL_set_post_handshake_auth(con, 1);
2159
2160 if (enable_client_rpk)
2161 if (!SSL_set1_client_cert_type(con, cert_type_rpk, sizeof(cert_type_rpk))) {
2162 BIO_printf(bio_err, "Error setting client certificate types\n");
2163 goto end;
2164 }
2165 if (enable_server_rpk) {
2166 if (!SSL_set1_server_cert_type(con, cert_type_rpk, sizeof(cert_type_rpk))) {
2167 BIO_printf(bio_err, "Error setting server certificate types\n");
2168 goto end;
2169 }
2170 }
2171
2172 if (sess_in != NULL) {
2173 SSL_SESSION *sess;
2174 BIO *stmp = BIO_new_file(sess_in, "r");
2175 if (stmp == NULL) {
2176 BIO_printf(bio_err, "Can't open session file %s\n", sess_in);
2177 ERR_print_errors(bio_err);
2178 goto end;
2179 }
2180 sess = PEM_read_bio_SSL_SESSION(stmp, NULL, 0, NULL);
2181 BIO_free(stmp);
2182 if (sess == NULL) {
2183 BIO_printf(bio_err, "Can't open session file %s\n", sess_in);
2184 ERR_print_errors(bio_err);
2185 goto end;
2186 }
2187 if (!SSL_set_session(con, sess)) {
2188 BIO_printf(bio_err, "Can't set session\n");
2189 ERR_print_errors(bio_err);
2190 goto end;
2191 }
2192
2193 SSL_SESSION_free(sess);
2194 }
2195
2196 if (fallback_scsv)
2197 SSL_set_mode(con, SSL_MODE_SEND_FALLBACK_SCSV);
2198
2199 if (!noservername && (servername != NULL || dane_tlsa_domain == NULL)) {
2200 if (servername == NULL) {
2201 if (host == NULL || is_dNS_name(host))
2202 servername = (host == NULL) ? "localhost" : host;
2203 }
2204 if (servername != NULL && !SSL_set_tlsext_host_name(con, servername)) {
2205 BIO_printf(bio_err, "Unable to set TLS servername extension.\n");
2206 ERR_print_errors(bio_err);
2207 goto end;
2208 }
2209 }
2210
2211 if (dane_tlsa_domain != NULL) {
2212 if (SSL_dane_enable(con, dane_tlsa_domain) <= 0) {
2213 BIO_printf(bio_err, "%s: Error enabling DANE TLSA "
2214 "authentication.\n",
2215 prog);
2216 ERR_print_errors(bio_err);
2217 goto end;
2218 }
2219 if (dane_tlsa_rrset == NULL) {
2220 BIO_printf(bio_err, "%s: DANE TLSA authentication requires at "
2221 "least one -dane_tlsa_rrdata option.\n",
2222 prog);
2223 goto end;
2224 }
2225 if (tlsa_import_rrset(con, dane_tlsa_rrset) <= 0) {
2226 BIO_printf(bio_err, "%s: Failed to import any TLSA "
2227 "records.\n",
2228 prog);
2229 goto end;
2230 }
2231 if (dane_ee_no_name)
2232 SSL_dane_set_flags(con, DANE_FLAG_NO_DANE_EE_NAMECHECKS);
2233 } else if (dane_tlsa_rrset != NULL) {
2234 BIO_printf(bio_err, "%s: DANE TLSA authentication requires the "
2235 "-dane_tlsa_domain option.\n",
2236 prog);
2237 goto end;
2238 }
2239 #ifndef OPENSSL_NO_DTLS
2240 if (isdtls && tfo) {
2241 BIO_printf(bio_err, "%s: DTLS does not support the -tfo option\n", prog);
2242 goto end;
2243 }
2244 #endif
2245 #ifndef OPENSSL_NO_QUIC
2246 if (isquic && tfo) {
2247 BIO_printf(bio_err, "%s: QUIC does not support the -tfo option\n", prog);
2248 goto end;
2249 }
2250 if (isquic && alpn_in == NULL) {
2251 BIO_printf(bio_err, "%s: QUIC requires ALPN to be specified (e.g. \"h3\" for HTTP/3) via the -alpn option\n", prog);
2252 goto end;
2253 }
2254 #endif
2255
2256 if (tfo)
2257 BIO_printf(bio_c_out, "Connecting via TFO\n");
2258 re_start:
2259 /* peer_addr might be set from previous connections */
2260 BIO_ADDR_free(peer_addr);
2261 peer_addr = NULL;
2262 if (init_client(&sock, host, port, bindhost, bindport, socket_family,
2263 socket_type, protocol, tfo, !isquic, &peer_addr)
2264 == 0) {
2265 BIO_printf(bio_err, "connect:errno=%d\n", get_last_socket_error());
2266 BIO_closesocket(sock);
2267 goto end;
2268 }
2269 BIO_printf(bio_c_out, "CONNECTED(%08X)\n", sock);
2270
2271 /*
2272 * QUIC always uses a non-blocking socket - and we have to switch on
2273 * non-blocking mode at the SSL level
2274 */
2275 if (c_nbio || isquic) {
2276 if (!BIO_socket_nbio(sock, 1)) {
2277 ERR_print_errors(bio_err);
2278 goto end;
2279 }
2280 if (c_nbio) {
2281 if (isquic && !SSL_set_blocking_mode(con, 0))
2282 goto end;
2283 BIO_printf(bio_c_out, "Turned on non blocking io\n");
2284 }
2285 }
2286 #ifndef OPENSSL_NO_DTLS
2287 if (isdtls) {
2288 union BIO_sock_info_u peer_info;
2289
2290 #ifndef OPENSSL_NO_SCTP
2291 if (protocol == IPPROTO_SCTP)
2292 sbio = BIO_new_dgram_sctp(sock, BIO_NOCLOSE);
2293 else
2294 #endif
2295 sbio = BIO_new_dgram(sock, BIO_NOCLOSE);
2296
2297 if (sbio == NULL || (peer_info.addr = BIO_ADDR_new()) == NULL) {
2298 BIO_printf(bio_err, "memory allocation failure\n");
2299 BIO_free(sbio);
2300 BIO_closesocket(sock);
2301 goto end;
2302 }
2303 if (!BIO_sock_info(sock, BIO_SOCK_INFO_ADDRESS, &peer_info)) {
2304 BIO_printf(bio_err, "getsockname:errno=%d\n",
2305 get_last_socket_error());
2306 BIO_free(sbio);
2307 BIO_ADDR_free(peer_info.addr);
2308 BIO_closesocket(sock);
2309 goto end;
2310 }
2311
2312 (void)BIO_ctrl_set_connected(sbio, peer_info.addr);
2313 BIO_ADDR_free(peer_info.addr);
2314 peer_info.addr = NULL;
2315
2316 if (enable_timeouts) {
2317 timeout.tv_sec = 0;
2318 timeout.tv_usec = DGRAM_RCV_TIMEOUT;
2319 BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_RECV_TIMEOUT, 0, &timeout);
2320
2321 timeout.tv_sec = 0;
2322 timeout.tv_usec = DGRAM_SND_TIMEOUT;
2323 BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_SEND_TIMEOUT, 0, &timeout);
2324 }
2325
2326 if (socket_mtu) {
2327 if (socket_mtu < DTLS_get_link_min_mtu(con)) {
2328 BIO_printf(bio_err, "MTU too small. Must be at least %ld\n",
2329 DTLS_get_link_min_mtu(con));
2330 BIO_free(sbio);
2331 goto shut;
2332 }
2333 SSL_set_options(con, SSL_OP_NO_QUERY_MTU);
2334 if (!DTLS_set_link_mtu(con, socket_mtu)) {
2335 BIO_printf(bio_err, "Failed to set MTU\n");
2336 BIO_free(sbio);
2337 goto shut;
2338 }
2339 } else {
2340 /* want to do MTU discovery */
2341 BIO_ctrl(sbio, BIO_CTRL_DGRAM_MTU_DISCOVER, 0, NULL);
2342 }
2343 } else
2344 #endif /* OPENSSL_NO_DTLS */
2345 #ifndef OPENSSL_NO_QUIC
2346 if (isquic) {
2347 sbio = BIO_new_dgram(sock, BIO_NOCLOSE);
2348 if (!SSL_set1_initial_peer_addr(con, peer_addr)) {
2349 BIO_printf(bio_err, "Failed to set the initial peer address\n");
2350 goto shut;
2351 }
2352 } else
2353 #endif
2354 sbio = BIO_new_socket(sock, BIO_NOCLOSE);
2355
2356 if (sbio == NULL) {
2357 BIO_printf(bio_err, "Unable to create BIO\n");
2358 ERR_print_errors(bio_err);
2359 BIO_closesocket(sock);
2360 goto end;
2361 }
2362
2363 /* Now that we're using a BIO... */
2364 if (tfo) {
2365 (void)BIO_set_conn_address(sbio, peer_addr);
2366 (void)BIO_set_tfo(sbio, 1);
2367 }
2368
2369 if (nbio_test) {
2370 BIO *test;
2371
2372 test = BIO_new(BIO_f_nbio_test());
2373 if (test == NULL) {
2374 BIO_printf(bio_err, "Unable to create BIO\n");
2375 BIO_free(sbio);
2376 goto shut;
2377 }
2378 sbio = BIO_push(test, sbio);
2379 }
2380
2381 if (c_debug) {
2382 BIO_set_callback_ex(sbio, bio_dump_callback);
2383 BIO_set_callback_arg(sbio, (char *)bio_c_out);
2384 }
2385 if (c_msg) {
2386 #ifndef OPENSSL_NO_SSL_TRACE
2387 if (c_msg == 2)
2388 SSL_set_msg_callback(con, SSL_trace);
2389 else
2390 #endif
2391 SSL_set_msg_callback(con, msg_cb);
2392 SSL_set_msg_callback_arg(con, bio_c_msg ? bio_c_msg : bio_c_out);
2393 }
2394
2395 if (c_tlsextdebug) {
2396 SSL_set_tlsext_debug_callback(con, tlsext_cb);
2397 SSL_set_tlsext_debug_arg(con, bio_c_out);
2398 }
2399 #ifndef OPENSSL_NO_OCSP
2400 if (c_status_req) {
2401 SSL_set_tlsext_status_type(con, TLSEXT_STATUSTYPE_ocsp);
2402 SSL_CTX_set_tlsext_status_cb(ctx, ocsp_resp_cb);
2403 SSL_CTX_set_tlsext_status_arg(ctx, bio_c_out);
2404 }
2405 #endif
2406
2407 SSL_set_bio(con, sbio, sbio);
2408 SSL_set_connect_state(con);
2409
2410 /* ok, lets connect */
2411 if (fileno_stdin() > SSL_get_fd(con))
2412 width = fileno_stdin() + 1;
2413 else
2414 width = SSL_get_fd(con) + 1;
2415
2416 read_tty = 1;
2417 write_tty = 0;
2418 tty_on = 0;
2419 read_ssl = 1;
2420 write_ssl = 1;
2421 first_loop = 1;
2422
2423 cbuf_len = 0;
2424 cbuf_off = 0;
2425 sbuf_len = 0;
2426 sbuf_off = 0;
2427
2428 #ifndef OPENSSL_NO_HTTP
2429 if (proxystr != NULL) {
2430 /* Here we must use the connect string target host & port */
2431 if (!OSSL_HTTP_proxy_connect(sbio, thost, tport, proxyuser, proxypass,
2432 0 /* no timeout */, bio_err, prog))
2433 goto shut;
2434 }
2435 #endif
2436
2437 switch ((PROTOCOL_CHOICE)starttls_proto) {
2438 case PROTO_OFF:
2439 break;
2440 case PROTO_LMTP:
2441 case PROTO_SMTP: {
2442 /*
2443 * This is an ugly hack that does a lot of assumptions. We do
2444 * have to handle multi-line responses which may come in a single
2445 * packet or not. We therefore have to use BIO_gets() which does
2446 * need a buffering BIO. So during the initial chitchat we do
2447 * push a buffering BIO into the chain that is removed again
2448 * later on to not disturb the rest of the s_client operation.
2449 */
2450 int foundit = 0;
2451 BIO *fbio = BIO_new(BIO_f_buffer());
2452
2453 if (fbio == NULL) {
2454 BIO_printf(bio_err, "Unable to create BIO\n");
2455 goto shut;
2456 }
2457 BIO_push(fbio, sbio);
2458 /* Wait for multi-line response to end from LMTP or SMTP */
2459 do {
2460 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2461 } while (mbuf_len > 3 && mbuf[3] == '-');
2462 if (protohost == NULL)
2463 protohost = "mail.example.com";
2464 if (starttls_proto == (int)PROTO_LMTP)
2465 BIO_printf(fbio, "LHLO %s\r\n", protohost);
2466 else
2467 BIO_printf(fbio, "EHLO %s\r\n", protohost);
2468 (void)BIO_flush(fbio);
2469 /*
2470 * Wait for multi-line response to end LHLO LMTP or EHLO SMTP
2471 * response.
2472 */
2473 do {
2474 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2475 if (strstr(mbuf, "STARTTLS"))
2476 foundit = 1;
2477 } while (mbuf_len > 3 && mbuf[3] == '-');
2478 (void)BIO_flush(fbio);
2479 BIO_pop(fbio);
2480 BIO_free(fbio);
2481 if (!foundit)
2482 BIO_printf(bio_err,
2483 "Didn't find STARTTLS in server response,"
2484 " trying anyway...\n");
2485 BIO_printf(sbio, "STARTTLS\r\n");
2486 BIO_read(sbio, sbuf, BUFSIZZ);
2487 } break;
2488 case PROTO_POP3: {
2489 BIO_read(sbio, mbuf, BUFSIZZ);
2490 BIO_printf(sbio, "STLS\r\n");
2491 mbuf_len = BIO_read(sbio, sbuf, BUFSIZZ);
2492 if (mbuf_len < 0) {
2493 BIO_printf(bio_err, "BIO_read failed\n");
2494 goto end;
2495 }
2496 } break;
2497 case PROTO_IMAP: {
2498 int foundit = 0;
2499 BIO *fbio = BIO_new(BIO_f_buffer());
2500
2501 if (fbio == NULL) {
2502 BIO_printf(bio_err, "Unable to create BIO\n");
2503 goto shut;
2504 }
2505 BIO_push(fbio, sbio);
2506 BIO_gets(fbio, mbuf, BUFSIZZ);
2507 /* STARTTLS command requires CAPABILITY... */
2508 BIO_printf(fbio, ". CAPABILITY\r\n");
2509 (void)BIO_flush(fbio);
2510 /* wait for multi-line CAPABILITY response */
2511 do {
2512 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2513 if (strstr(mbuf, "STARTTLS"))
2514 foundit = 1;
2515 } while (mbuf_len > 3 && mbuf[0] != '.');
2516 (void)BIO_flush(fbio);
2517 BIO_pop(fbio);
2518 BIO_free(fbio);
2519 if (!foundit)
2520 BIO_printf(bio_err,
2521 "Didn't find STARTTLS in server response,"
2522 " trying anyway...\n");
2523 BIO_printf(sbio, ". STARTTLS\r\n");
2524 BIO_read(sbio, sbuf, BUFSIZZ);
2525 } break;
2526 case PROTO_FTP: {
2527 BIO *fbio = BIO_new(BIO_f_buffer());
2528
2529 if (fbio == NULL) {
2530 BIO_printf(bio_err, "Unable to create BIO\n");
2531 goto shut;
2532 }
2533 BIO_push(fbio, sbio);
2534 /* wait for multi-line response to end from FTP */
2535 do {
2536 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2537 } while (mbuf_len > 3 && (!isdigit((unsigned char)mbuf[0]) || !isdigit((unsigned char)mbuf[1]) || !isdigit((unsigned char)mbuf[2]) || mbuf[3] != ' '));
2538 (void)BIO_flush(fbio);
2539 BIO_pop(fbio);
2540 BIO_free(fbio);
2541 BIO_printf(sbio, "AUTH TLS\r\n");
2542 BIO_read(sbio, sbuf, BUFSIZZ);
2543 } break;
2544 case PROTO_XMPP:
2545 case PROTO_XMPP_SERVER: {
2546 int seen = 0;
2547 BIO_printf(sbio, "<stream:stream "
2548 "xmlns:stream='http://etherx.jabber.org/streams' "
2549 "xmlns='jabber:%s' to='%s' version='1.0'>",
2550 starttls_proto == PROTO_XMPP ? "client" : "server",
2551 protohost ? protohost : host);
2552 seen = BIO_read(sbio, mbuf, BUFSIZZ);
2553 if (seen < 0) {
2554 BIO_printf(bio_err, "BIO_read failed\n");
2555 goto end;
2556 }
2557 mbuf[seen] = '\0';
2558 while (!strstr(mbuf, "<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'")
2559 && !strstr(mbuf,
2560 "<starttls xmlns=\"urn:ietf:params:xml:ns:xmpp-tls\"")) {
2561 seen = BIO_read(sbio, mbuf, BUFSIZZ);
2562
2563 if (seen <= 0)
2564 goto shut;
2565
2566 mbuf[seen] = '\0';
2567 }
2568 BIO_printf(sbio,
2569 "<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'/>");
2570 seen = BIO_read(sbio, sbuf, BUFSIZZ);
2571 if (seen < 0) {
2572 BIO_printf(bio_err, "BIO_read failed\n");
2573 goto shut;
2574 }
2575 sbuf[seen] = '\0';
2576 if (!strstr(sbuf, "<proceed"))
2577 goto shut;
2578 mbuf[0] = '\0';
2579 } break;
2580 case PROTO_TELNET: {
2581 static const unsigned char tls_do[] = {
2582 /* IAC DO START_TLS */
2583 255, 253, 46
2584 };
2585 static const unsigned char tls_will[] = {
2586 /* IAC WILL START_TLS */
2587 255, 251, 46
2588 };
2589 static const unsigned char tls_follows[] = {
2590 /* IAC SB START_TLS FOLLOWS IAC SE */
2591 255, 250, 46, 1, 255, 240
2592 };
2593 int bytes;
2594
2595 /* Telnet server should demand we issue START_TLS */
2596 bytes = BIO_read(sbio, mbuf, BUFSIZZ);
2597 if (bytes != 3 || memcmp(mbuf, tls_do, 3) != 0)
2598 goto shut;
2599 /* Agree to issue START_TLS and send the FOLLOWS sub-command */
2600 BIO_write(sbio, tls_will, 3);
2601 BIO_write(sbio, tls_follows, 6);
2602 (void)BIO_flush(sbio);
2603 /* Telnet server also sent the FOLLOWS sub-command */
2604 bytes = BIO_read(sbio, mbuf, BUFSIZZ);
2605 if (bytes != 6 || memcmp(mbuf, tls_follows, 6) != 0)
2606 goto shut;
2607 } break;
2608 case PROTO_IRC: {
2609 int numeric;
2610 BIO *fbio = BIO_new(BIO_f_buffer());
2611
2612 if (fbio == NULL) {
2613 BIO_printf(bio_err, "Unable to create BIO\n");
2614 goto end;
2615 }
2616 BIO_push(fbio, sbio);
2617 BIO_printf(fbio, "STARTTLS\r\n");
2618 (void)BIO_flush(fbio);
2619 width = SSL_get_fd(con) + 1;
2620
2621 do {
2622 numeric = 0;
2623
2624 FD_ZERO(&readfds);
2625 openssl_fdset(SSL_get_fd(con), &readfds);
2626 timeout.tv_sec = S_CLIENT_IRC_READ_TIMEOUT;
2627 timeout.tv_usec = 0;
2628 /*
2629 * If the IRCd doesn't respond within
2630 * S_CLIENT_IRC_READ_TIMEOUT seconds, assume
2631 * it doesn't support STARTTLS. Many IRCds
2632 * will not give _any_ sort of response to a
2633 * STARTTLS command when it's not supported.
2634 */
2635 if (!BIO_get_buffer_num_lines(fbio)
2636 && !BIO_pending(fbio)
2637 && !BIO_pending(sbio)
2638 && select(width, (void *)&readfds, NULL, NULL,
2639 &timeout)
2640 < 1) {
2641 BIO_printf(bio_err,
2642 "Timeout waiting for response (%d seconds).\n",
2643 S_CLIENT_IRC_READ_TIMEOUT);
2644 break;
2645 }
2646
2647 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2648 if (mbuf_len < 1 || sscanf(mbuf, "%*s %d", &numeric) != 1)
2649 break;
2650 /* :example.net 451 STARTTLS :You have not registered */
2651 /* :example.net 421 STARTTLS :Unknown command */
2652 if ((numeric == 451 || numeric == 421)
2653 && strstr(mbuf, "STARTTLS") != NULL) {
2654 BIO_printf(bio_err, "STARTTLS not supported: %s", mbuf);
2655 break;
2656 }
2657 if (numeric == 691) {
2658 BIO_printf(bio_err, "STARTTLS negotiation failed: ");
2659 ERR_print_errors(bio_err);
2660 break;
2661 }
2662 } while (numeric != 670);
2663
2664 (void)BIO_flush(fbio);
2665 BIO_pop(fbio);
2666 BIO_free(fbio);
2667 if (numeric != 670) {
2668 BIO_printf(bio_err, "Server does not support STARTTLS.\n");
2669 ret = 1;
2670 goto shut;
2671 }
2672 } break;
2673 case PROTO_MYSQL: {
2674 /* SSL request packet */
2675 static const unsigned char ssl_req[] = {
2676 /* payload_length, sequence_id */
2677 0x20, 0x00, 0x00, 0x01,
2678 /* payload */
2679 /* capability flags, CLIENT_SSL always set */
2680 0x85, 0xae, 0x7f, 0x00,
2681 /* max-packet size */
2682 0x00, 0x00, 0x00, 0x01,
2683 /* character set */
2684 0x21,
2685 /* string[23] reserved (all [0]) */
2686 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
2687 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
2688 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
2689 };
2690 int bytes = 0;
2691 int ssl_flg = 0x800;
2692 int pos;
2693 const unsigned char *packet = (const unsigned char *)sbuf;
2694
2695 /* Receiving Initial Handshake packet. */
2696 bytes = BIO_read(sbio, (void *)packet, BUFSIZZ);
2697 if (bytes < 0) {
2698 BIO_printf(bio_err, "BIO_read failed\n");
2699 goto shut;
2700 /* Packet length[3], Packet number[1] + minimum payload[17] */
2701 } else if (bytes < 21) {
2702 BIO_printf(bio_err, "MySQL packet too short.\n");
2703 goto shut;
2704 } else if (bytes != (4 + packet[0] + (packet[1] << 8) + (packet[2] << 16))) {
2705 BIO_printf(bio_err, "MySQL packet length does not match.\n");
2706 goto shut;
2707 /* protocol version[1] */
2708 } else if (packet[4] != 0xA) {
2709 BIO_printf(bio_err,
2710 "Only MySQL protocol version 10 is supported.\n");
2711 goto shut;
2712 }
2713
2714 pos = 5;
2715 /* server version[string+NULL] */
2716 for (;;) {
2717 if (pos >= bytes) {
2718 BIO_printf(bio_err, "Cannot confirm server version. ");
2719 goto shut;
2720 } else if (packet[pos++] == '\0') {
2721 break;
2722 }
2723 }
2724
2725 /* make sure we have at least 15 bytes left in the packet */
2726 if (pos + 15 > bytes) {
2727 BIO_printf(bio_err,
2728 "MySQL server handshake packet is broken.\n");
2729 goto shut;
2730 }
2731
2732 pos += 12; /* skip over conn id[4] + SALT[8] */
2733 if (packet[pos++] != '\0') { /* verify filler */
2734 BIO_printf(bio_err,
2735 "MySQL packet is broken.\n");
2736 goto shut;
2737 }
2738
2739 /* capability flags[2] */
2740 if (!((packet[pos] + (packet[pos + 1] << 8)) & ssl_flg)) {
2741 BIO_printf(bio_err, "MySQL server does not support SSL.\n");
2742 goto shut;
2743 }
2744
2745 /* Sending SSL Handshake packet. */
2746 BIO_write(sbio, ssl_req, sizeof(ssl_req));
2747 (void)BIO_flush(sbio);
2748 } break;
2749 case PROTO_POSTGRES: {
2750 static const unsigned char ssl_request[] = {
2751 /* Length SSLRequest */
2752 0, 0, 0, 8, 4, 210, 22, 47
2753 };
2754 int bytes;
2755
2756 /* Send SSLRequest packet */
2757 BIO_write(sbio, ssl_request, 8);
2758 (void)BIO_flush(sbio);
2759
2760 /* Reply will be a single S if SSL is enabled */
2761 bytes = BIO_read(sbio, sbuf, BUFSIZZ);
2762 if (bytes != 1 || sbuf[0] != 'S')
2763 goto shut;
2764 } break;
2765 case PROTO_NNTP: {
2766 int foundit = 0;
2767 BIO *fbio = BIO_new(BIO_f_buffer());
2768
2769 if (fbio == NULL) {
2770 BIO_printf(bio_err, "Unable to create BIO\n");
2771 goto end;
2772 }
2773 BIO_push(fbio, sbio);
2774 BIO_gets(fbio, mbuf, BUFSIZZ);
2775 /* STARTTLS command requires CAPABILITIES... */
2776 BIO_printf(fbio, "CAPABILITIES\r\n");
2777 (void)BIO_flush(fbio);
2778 BIO_gets(fbio, mbuf, BUFSIZZ);
2779 /* no point in trying to parse the CAPABILITIES response if there is none */
2780 if (strstr(mbuf, "101") != NULL) {
2781 /* wait for multi-line CAPABILITIES response */
2782 do {
2783 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2784 if (strstr(mbuf, "STARTTLS"))
2785 foundit = 1;
2786 } while (mbuf_len > 1 && mbuf[0] != '.');
2787 }
2788 (void)BIO_flush(fbio);
2789 BIO_pop(fbio);
2790 BIO_free(fbio);
2791 if (!foundit)
2792 BIO_printf(bio_err,
2793 "Didn't find STARTTLS in server response,"
2794 " trying anyway...\n");
2795 BIO_printf(sbio, "STARTTLS\r\n");
2796 mbuf_len = BIO_read(sbio, mbuf, BUFSIZZ);
2797 if (mbuf_len < 0) {
2798 BIO_printf(bio_err, "BIO_read failed\n");
2799 goto end;
2800 }
2801 mbuf[mbuf_len] = '\0';
2802 if (strstr(mbuf, "382") == NULL) {
2803 BIO_printf(bio_err, "STARTTLS failed: %s", mbuf);
2804 goto shut;
2805 }
2806 } break;
2807 case PROTO_SIEVE: {
2808 int foundit = 0;
2809 BIO *fbio = BIO_new(BIO_f_buffer());
2810
2811 if (fbio == NULL) {
2812 BIO_printf(bio_err, "Unable to create BIO\n");
2813 goto end;
2814 }
2815 BIO_push(fbio, sbio);
2816 /* wait for multi-line response to end from Sieve */
2817 do {
2818 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2819 /*
2820 * According to RFC 5804 § 1.7, capability
2821 * is case-insensitive, make it uppercase
2822 */
2823 if (mbuf_len > 1 && mbuf[0] == '"') {
2824 make_uppercase(mbuf);
2825 if (HAS_PREFIX(mbuf, "\"STARTTLS\""))
2826 foundit = 1;
2827 }
2828 } while (mbuf_len > 1 && mbuf[0] == '"');
2829 (void)BIO_flush(fbio);
2830 BIO_pop(fbio);
2831 BIO_free(fbio);
2832 if (!foundit)
2833 BIO_printf(bio_err,
2834 "Didn't find STARTTLS in server response,"
2835 " trying anyway...\n");
2836 BIO_printf(sbio, "STARTTLS\r\n");
2837 mbuf_len = BIO_read(sbio, mbuf, BUFSIZZ);
2838 if (mbuf_len < 0) {
2839 BIO_printf(bio_err, "BIO_read failed\n");
2840 goto end;
2841 }
2842 mbuf[mbuf_len] = '\0';
2843 if (mbuf_len < 2) {
2844 BIO_printf(bio_err, "STARTTLS failed: %s", mbuf);
2845 goto shut;
2846 }
2847 /*
2848 * According to RFC 5804 § 2.2, response codes are case-
2849 * insensitive, make it uppercase but preserve the response.
2850 */
2851 strncpy(sbuf, mbuf, 2);
2852 make_uppercase(sbuf);
2853 if (!HAS_PREFIX(sbuf, "OK")) {
2854 BIO_printf(bio_err, "STARTTLS not supported: %s", mbuf);
2855 goto shut;
2856 }
2857 } break;
2858 case PROTO_LDAP: {
2859 /* StartTLS Operation according to RFC 4511 */
2860 static char ldap_tls_genconf[] = "asn1=SEQUENCE:LDAPMessage\n"
2861 "[LDAPMessage]\n"
2862 "messageID=INTEGER:1\n"
2863 "extendedReq=EXPLICIT:23A,IMPLICIT:0C,"
2864 "FORMAT:ASCII,OCT:1.3.6.1.4.1.1466.20037\n";
2865 long errline = -1;
2866 char *genstr = NULL;
2867 int result = -1;
2868 ASN1_TYPE *atyp = NULL;
2869 BIO *ldapbio = BIO_new(BIO_s_mem());
2870 CONF *cnf = NCONF_new(NULL);
2871
2872 if (ldapbio == NULL || cnf == NULL) {
2873 BIO_free(ldapbio);
2874 NCONF_free(cnf);
2875 goto end;
2876 }
2877 BIO_puts(ldapbio, ldap_tls_genconf);
2878 if (NCONF_load_bio(cnf, ldapbio, &errline) <= 0) {
2879 BIO_free(ldapbio);
2880 NCONF_free(cnf);
2881 if (errline <= 0) {
2882 BIO_printf(bio_err, "NCONF_load_bio failed\n");
2883 goto end;
2884 } else {
2885 BIO_printf(bio_err, "Error on line %ld\n", errline);
2886 goto end;
2887 }
2888 }
2889 BIO_free(ldapbio);
2890 genstr = NCONF_get_string(cnf, "default", "asn1");
2891 if (genstr == NULL) {
2892 NCONF_free(cnf);
2893 BIO_printf(bio_err, "NCONF_get_string failed\n");
2894 goto end;
2895 }
2896 atyp = ASN1_generate_nconf(genstr, cnf);
2897 if (atyp == NULL || atyp->type != V_ASN1_SEQUENCE) {
2898 NCONF_free(cnf);
2899 ASN1_TYPE_free(atyp);
2900 BIO_printf(bio_err, "ASN1_generate_nconf failed\n");
2901 goto end;
2902 }
2903 NCONF_free(cnf);
2904
2905 /* Send SSLRequest packet */
2906 BIO_write(sbio, atyp->value.sequence->data,
2907 atyp->value.sequence->length);
2908 (void)BIO_flush(sbio);
2909 ASN1_TYPE_free(atyp);
2910
2911 mbuf_len = BIO_read(sbio, mbuf, BUFSIZZ);
2912 if (mbuf_len < 0) {
2913 BIO_printf(bio_err, "BIO_read failed\n");
2914 goto end;
2915 }
2916 result = ldap_ExtendedResponse_parse(mbuf, mbuf_len);
2917 if (result < 0) {
2918 BIO_printf(bio_err, "ldap_ExtendedResponse_parse failed\n");
2919 goto shut;
2920 } else if (result > 0) {
2921 BIO_printf(bio_err, "STARTTLS failed, LDAP Result Code: %i\n",
2922 result);
2923 goto shut;
2924 }
2925 mbuf_len = 0;
2926 } break;
2927 }
2928
2929 if (early_data_file != NULL
2930 && ((SSL_get0_session(con) != NULL
2931 && SSL_SESSION_get_max_early_data(SSL_get0_session(con)) > 0)
2932 || (psksess != NULL
2933 && SSL_SESSION_get_max_early_data(psksess) > 0))) {
2934 BIO *edfile = BIO_new_file(early_data_file, "r");
2935 size_t readbytes, writtenbytes;
2936 int finish = 0;
2937
2938 if (edfile == NULL) {
2939 BIO_printf(bio_err, "Cannot open early data file\n");
2940 goto shut;
2941 }
2942
2943 while (!finish) {
2944 if (!BIO_read_ex(edfile, cbuf, BUFSIZZ, &readbytes))
2945 finish = 1;
2946
2947 while (!SSL_write_early_data(con, cbuf, readbytes, &writtenbytes)) {
2948 switch (SSL_get_error(con, 0)) {
2949 case SSL_ERROR_WANT_WRITE:
2950 case SSL_ERROR_WANT_ASYNC:
2951 case SSL_ERROR_WANT_READ:
2952 /* Just keep trying - busy waiting */
2953 continue;
2954 default:
2955 BIO_printf(bio_err, "Error writing early data\n");
2956 BIO_free(edfile);
2957 ERR_print_errors(bio_err);
2958 goto shut;
2959 }
2960 }
2961 }
2962
2963 BIO_free(edfile);
2964 }
2965
2966 user_data_init(&user_data, con, cbuf, BUFSIZZ, cmdmode);
2967 for (;;) {
2968 FD_ZERO(&readfds);
2969 FD_ZERO(&writefds);
2970
2971 if ((isdtls || isquic)
2972 && SSL_get_event_timeout(con, &timeout, &is_infinite)
2973 && !is_infinite)
2974 timeoutp = &timeout;
2975 else
2976 timeoutp = NULL;
2977
2978 if (!SSL_is_init_finished(con) && SSL_total_renegotiations(con) == 0
2979 && SSL_get_key_update_type(con) == SSL_KEY_UPDATE_NONE) {
2980 in_init = 1;
2981 tty_on = 0;
2982 } else {
2983 tty_on = 1;
2984 if (in_init) {
2985 in_init = 0;
2986 if (c_brief) {
2987 BIO_puts(bio_err, "CONNECTION ESTABLISHED\n");
2988 print_ssl_summary(con);
2989 }
2990
2991 print_stuff(bio_c_out, con, full_log);
2992 if (full_log > 0)
2993 full_log--;
2994
2995 if (starttls_proto) {
2996 BIO_write(bio_err, mbuf, mbuf_len);
2997 /* We don't need to know any more */
2998 if (!reconnect)
2999 starttls_proto = PROTO_OFF;
3000 }
3001
3002 if (reconnect) {
3003 reconnect--;
3004 BIO_printf(bio_c_out,
3005 "drop connection and then reconnect\n");
3006 do_ssl_shutdown(con);
3007 SSL_set_connect_state(con);
3008 BIO_closesocket(SSL_get_fd(con));
3009 goto re_start;
3010 }
3011 }
3012 }
3013
3014 if (!write_ssl) {
3015 do {
3016 switch (user_data_process(&user_data, &cbuf_len, &cbuf_off)) {
3017 default:
3018 BIO_printf(bio_err, "ERROR\n");
3019 /* fall through */
3020 case USER_DATA_PROCESS_SHUT:
3021 ret = 0;
3022 goto shut;
3023
3024 case USER_DATA_PROCESS_RESTART:
3025 goto re_start;
3026
3027 case USER_DATA_PROCESS_NO_DATA:
3028 break;
3029
3030 case USER_DATA_PROCESS_CONTINUE:
3031 write_ssl = 1;
3032 break;
3033 }
3034 } while (!write_ssl
3035 && cbuf_len == 0
3036 && user_data_has_data(&user_data));
3037 if (cbuf_len > 0) {
3038 read_tty = 0;
3039 timeout.tv_sec = 0;
3040 timeout.tv_usec = 0;
3041 } else {
3042 read_tty = 1;
3043 }
3044 }
3045
3046 ssl_pending = read_ssl && SSL_has_pending(con);
3047
3048 if (!ssl_pending) {
3049 #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS)
3050 if (tty_on) {
3051 /*
3052 * Note that select() returns when read _would not block_,
3053 * and EOF satisfies that. To avoid a CPU-hogging loop,
3054 * set the flag so we exit.
3055 */
3056 if (read_tty && !at_eof)
3057 openssl_fdset(fileno_stdin(), &readfds);
3058 #if !defined(OPENSSL_SYS_VMS)
3059 if (write_tty)
3060 openssl_fdset(fileno_stdout(), &writefds);
3061 #endif
3062 }
3063
3064 /*
3065 * Note that for QUIC we never actually check FD_ISSET() for the
3066 * underlying network fds. We just rely on select waking up when
3067 * they become readable/writeable and then SSL_handle_events() doing
3068 * the right thing.
3069 */
3070 if ((!isquic && read_ssl)
3071 || (isquic && SSL_net_read_desired(con)))
3072 openssl_fdset(SSL_get_fd(con), &readfds);
3073 if ((!isquic && write_ssl)
3074 || (isquic && (first_loop || SSL_net_write_desired(con))))
3075 openssl_fdset(SSL_get_fd(con), &writefds);
3076 #else
3077 if (!tty_on || !write_tty) {
3078 if ((!isquic && read_ssl)
3079 || (isquic && SSL_net_read_desired(con)))
3080 openssl_fdset(SSL_get_fd(con), &readfds);
3081 if ((!isquic && write_ssl)
3082 || (isquic && (first_loop || SSL_net_write_desired(con))))
3083 openssl_fdset(SSL_get_fd(con), &writefds);
3084 }
3085 #endif
3086
3087 /*
3088 * Note: under VMS with SOCKETSHR the second parameter is
3089 * currently of type (int *) whereas under other systems it is
3090 * (void *) if you don't have a cast it will choke the compiler:
3091 * if you do have a cast then you can either go for (int *) or
3092 * (void *).
3093 */
3094 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
3095 /*
3096 * Under Windows/DOS we make the assumption that we can always
3097 * write to the tty: therefore, if we need to write to the tty we
3098 * just fall through. Otherwise we timeout the select every
3099 * second and see if there are any keypresses. Note: this is a
3100 * hack, in a proper Windows application we wouldn't do this.
3101 */
3102 i = 0;
3103 if (!write_tty) {
3104 if (read_tty) {
3105 tv.tv_sec = 1;
3106 tv.tv_usec = 0;
3107 i = select(width, (void *)&readfds, (void *)&writefds,
3108 NULL, &tv);
3109 if (!i && (!has_stdin_waiting() || !read_tty))
3110 continue;
3111 } else
3112 i = select(width, (void *)&readfds, (void *)&writefds,
3113 NULL, timeoutp);
3114 }
3115 #else
3116 i = select(width, (void *)&readfds, (void *)&writefds,
3117 NULL, timeoutp);
3118 #endif
3119 if (i < 0) {
3120 BIO_printf(bio_err, "bad select %d\n",
3121 get_last_socket_error());
3122 goto shut;
3123 }
3124 }
3125
3126 if (timeoutp != NULL) {
3127 SSL_handle_events(con);
3128 if (isdtls
3129 && !FD_ISSET(SSL_get_fd(con), &readfds)
3130 && !FD_ISSET(SSL_get_fd(con), &writefds))
3131 BIO_printf(bio_err, "TIMEOUT occurred\n");
3132 }
3133
3134 if (!ssl_pending
3135 && ((!isquic && FD_ISSET(SSL_get_fd(con), &writefds))
3136 || (isquic && (cbuf_len > 0 || first_loop)))) {
3137 k = SSL_write(con, &(cbuf[cbuf_off]), (unsigned int)cbuf_len);
3138 switch (SSL_get_error(con, k)) {
3139 case SSL_ERROR_NONE:
3140 cbuf_off += k;
3141 cbuf_len -= k;
3142 if (k <= 0)
3143 goto end;
3144 /* we have done a write(con,NULL,0); */
3145 if (cbuf_len == 0) {
3146 read_tty = 1;
3147 write_ssl = 0;
3148 } else { /* if (cbuf_len > 0) */
3149
3150 read_tty = 0;
3151 write_ssl = 1;
3152 }
3153 break;
3154 case SSL_ERROR_WANT_WRITE:
3155 BIO_printf(bio_c_out, "write W BLOCK\n");
3156 write_ssl = 1;
3157 read_tty = 0;
3158 break;
3159 case SSL_ERROR_WANT_ASYNC:
3160 BIO_printf(bio_c_out, "write A BLOCK\n");
3161 wait_for_async(con);
3162 write_ssl = 1;
3163 read_tty = 0;
3164 break;
3165 case SSL_ERROR_WANT_READ:
3166 BIO_printf(bio_c_out, "write R BLOCK\n");
3167 write_tty = 0;
3168 read_ssl = 1;
3169 write_ssl = 0;
3170 break;
3171 case SSL_ERROR_WANT_X509_LOOKUP:
3172 BIO_printf(bio_c_out, "write X BLOCK\n");
3173 break;
3174 case SSL_ERROR_ZERO_RETURN:
3175 if (cbuf_len != 0) {
3176 BIO_printf(bio_c_out, "shutdown\n");
3177 ret = 0;
3178 goto shut;
3179 } else {
3180 read_tty = 1;
3181 write_ssl = 0;
3182 break;
3183 }
3184
3185 case SSL_ERROR_SYSCALL:
3186 if ((k != 0) || (cbuf_len != 0)) {
3187 int sockerr = get_last_socket_error();
3188
3189 if (!tfo || sockerr != EISCONN) {
3190 BIO_printf(bio_err, "write:errno=%d\n", sockerr);
3191 goto shut;
3192 }
3193 } else {
3194 read_tty = 1;
3195 write_ssl = 0;
3196 }
3197 break;
3198 case SSL_ERROR_WANT_ASYNC_JOB:
3199 /* This shouldn't ever happen in s_client - treat as an error */
3200 case SSL_ERROR_SSL:
3201 ERR_print_errors(bio_err);
3202 goto shut;
3203 }
3204 }
3205 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_VMS)
3206 /* Assume Windows/DOS/BeOS can always write */
3207 else if (!ssl_pending && write_tty)
3208 #else
3209 else if (!ssl_pending && FD_ISSET(fileno_stdout(), &writefds))
3210 #endif
3211 {
3212 #ifdef CHARSET_EBCDIC
3213 ascii2ebcdic(&(sbuf[sbuf_off]), &(sbuf[sbuf_off]), sbuf_len);
3214 #endif
3215 i = raw_write_stdout(&(sbuf[sbuf_off]), sbuf_len);
3216
3217 if (i <= 0) {
3218 BIO_printf(bio_c_out, "DONE\n");
3219 ret = 0;
3220 goto shut;
3221 }
3222
3223 sbuf_len -= i;
3224 sbuf_off += i;
3225 if (sbuf_len <= 0) {
3226 read_ssl = 1;
3227 write_tty = 0;
3228 }
3229 } else if (ssl_pending
3230 || (!isquic && FD_ISSET(SSL_get_fd(con), &readfds))) {
3231 #ifdef RENEG
3232 {
3233 static int iiii;
3234 if (++iiii == 52) {
3235 SSL_renegotiate(con);
3236 iiii = 0;
3237 }
3238 }
3239 #endif
3240 k = SSL_read(con, sbuf, BUFSIZZ);
3241
3242 switch (SSL_get_error(con, k)) {
3243 case SSL_ERROR_NONE:
3244 if (k <= 0)
3245 goto end;
3246 sbuf_off = 0;
3247 sbuf_len = k;
3248
3249 read_ssl = 0;
3250 write_tty = 1;
3251 break;
3252 case SSL_ERROR_WANT_ASYNC:
3253 BIO_printf(bio_c_out, "read A BLOCK\n");
3254 wait_for_async(con);
3255 write_tty = 0;
3256 read_ssl = 1;
3257 if ((read_tty == 0) && (write_ssl == 0))
3258 write_ssl = 1;
3259 break;
3260 case SSL_ERROR_WANT_WRITE:
3261 BIO_printf(bio_c_out, "read W BLOCK\n");
3262 write_ssl = 1;
3263 read_tty = 0;
3264 break;
3265 case SSL_ERROR_WANT_READ:
3266 BIO_printf(bio_c_out, "read R BLOCK\n");
3267 write_tty = 0;
3268 read_ssl = 1;
3269 if ((read_tty == 0) && (write_ssl == 0))
3270 write_ssl = 1;
3271 break;
3272 case SSL_ERROR_WANT_X509_LOOKUP:
3273 BIO_printf(bio_c_out, "read X BLOCK\n");
3274 break;
3275 case SSL_ERROR_SYSCALL:
3276 ret = get_last_socket_error();
3277 if (c_brief)
3278 BIO_puts(bio_err, "CONNECTION CLOSED BY SERVER\n");
3279 else
3280 BIO_printf(bio_err, "read:errno=%d\n", ret);
3281 goto shut;
3282 case SSL_ERROR_ZERO_RETURN:
3283 BIO_printf(bio_c_out, "closed\n");
3284 ret = 0;
3285 goto shut;
3286 case SSL_ERROR_WANT_ASYNC_JOB:
3287 /* This shouldn't ever happen in s_client. Treat as an error */
3288 case SSL_ERROR_SSL:
3289 ERR_print_errors(bio_err);
3290 goto shut;
3291 }
3292 }
3293
3294 /* don't wait for client input in the non-interactive mode */
3295 else if (nointeractive) {
3296 ret = 0;
3297 goto shut;
3298 }
3299
3300 /* OPENSSL_SYS_MSDOS includes OPENSSL_SYS_WINDOWS */
3301 #if defined(OPENSSL_SYS_MSDOS)
3302 else if (has_stdin_waiting())
3303 #else
3304 else if (FD_ISSET(fileno_stdin(), &readfds))
3305 #endif
3306 {
3307 if (crlf) {
3308 int j, lf_num;
3309
3310 i = raw_read_stdin(cbuf, BUFSIZZ / 2);
3311 lf_num = 0;
3312 /* both loops are skipped when i <= 0 */
3313 for (j = 0; j < i; j++)
3314 if (cbuf[j] == '\n')
3315 lf_num++;
3316 for (j = i - 1; j >= 0; j--) {
3317 cbuf[j + lf_num] = cbuf[j];
3318 if (cbuf[j] == '\n') {
3319 lf_num--;
3320 i++;
3321 cbuf[j + lf_num] = '\r';
3322 }
3323 }
3324 assert(lf_num == 0);
3325 } else
3326 i = raw_read_stdin(cbuf, BUFSIZZ);
3327 #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS)
3328 if (i == 0)
3329 at_eof = 1;
3330 #endif
3331
3332 if (!c_ign_eof && i <= 0) {
3333 BIO_printf(bio_err, "DONE\n");
3334 ret = 0;
3335 goto shut;
3336 }
3337
3338 if (i > 0 && !user_data_add(&user_data, i)) {
3339 ret = 0;
3340 goto shut;
3341 }
3342 read_tty = 0;
3343 }
3344 first_loop = 0;
3345 }
3346
3347 shut:
3348 if (in_init)
3349 print_stuff(bio_c_out, con, full_log);
3350 do_ssl_shutdown(con);
3351
3352 /*
3353 * If we ended with an alert being sent, but still with data in the
3354 * network buffer to be read, then calling BIO_closesocket() will
3355 * result in a TCP-RST being sent. On some platforms (notably
3356 * Windows) then this will result in the peer immediately abandoning
3357 * the connection including any buffered alert data before it has
3358 * had a chance to be read. Shutting down the sending side first,
3359 * and then closing the socket sends TCP-FIN first followed by
3360 * TCP-RST. This seems to allow the peer to read the alert data.
3361 */
3362 shutdown(SSL_get_fd(con), 1); /* SHUT_WR */
3363 /*
3364 * We just said we have nothing else to say, but it doesn't mean that
3365 * the other side has nothing. It's even recommended to consume incoming
3366 * data. [In testing context this ensures that alerts are passed on...]
3367 */
3368 timeout.tv_sec = 0;
3369 timeout.tv_usec = 500000; /* some extreme round-trip */
3370 do {
3371 FD_ZERO(&readfds);
3372 openssl_fdset(sock, &readfds);
3373 } while (select(sock + 1, &readfds, NULL, NULL, &timeout) > 0
3374 && BIO_read(sbio, sbuf, BUFSIZZ) > 0);
3375
3376 BIO_closesocket(SSL_get_fd(con));
3377 end:
3378 if (con != NULL) {
3379 if (prexit != 0)
3380 print_stuff(bio_c_out, con, 1);
3381 SSL_free(con);
3382 }
3383 SSL_SESSION_free(psksess);
3384 #if !defined(OPENSSL_NO_NEXTPROTONEG)
3385 OPENSSL_free(next_proto.data);
3386 #endif
3387 SSL_CTX_free(ctx);
3388 set_keylog_file(NULL, NULL);
3389 X509_free(cert);
3390 sk_X509_CRL_pop_free(crls, X509_CRL_free);
3391 EVP_PKEY_free(key);
3392 OSSL_STACK_OF_X509_free(chain);
3393 OPENSSL_free(pass);
3394 #ifndef OPENSSL_NO_SRP
3395 OPENSSL_free(srp_arg.srppassin);
3396 #endif
3397 OPENSSL_free(sname_alloc);
3398 BIO_ADDR_free(peer_addr);
3399 OPENSSL_free(connectstr);
3400 OPENSSL_free(bindstr);
3401 OPENSSL_free(bindhost);
3402 OPENSSL_free(bindport);
3403 OPENSSL_free(host);
3404 OPENSSL_free(port);
3405 OPENSSL_free(thost);
3406 OPENSSL_free(tport);
3407 X509_VERIFY_PARAM_free(vpm);
3408 ssl_excert_free(exc);
3409 sk_OPENSSL_STRING_free(ssl_args);
3410 sk_OPENSSL_STRING_free(dane_tlsa_rrset);
3411 SSL_CONF_CTX_free(cctx);
3412 OPENSSL_clear_free(cbuf, BUFSIZZ);
3413 OPENSSL_clear_free(sbuf, BUFSIZZ);
3414 OPENSSL_clear_free(mbuf, BUFSIZZ);
3415 clear_free(proxypass);
3416 release_engine(e);
3417 BIO_free(bio_c_out);
3418 bio_c_out = NULL;
3419 BIO_free(bio_c_msg);
3420 bio_c_msg = NULL;
3421 return ret;
3422 }
3423
ec_curve_name(EVP_PKEY * pkey)3424 static char *ec_curve_name(EVP_PKEY *pkey)
3425 {
3426 char *curve = 0;
3427 size_t namelen;
3428
3429 if (EVP_PKEY_get_group_name(pkey, NULL, 0, &namelen)) {
3430 curve = OPENSSL_malloc(++namelen);
3431 if (!EVP_PKEY_get_group_name(pkey, curve, namelen, 0)) {
3432 OPENSSL_free(curve);
3433 curve = NULL;
3434 }
3435 }
3436 return (curve);
3437 }
3438
print_cert_key_info(BIO * bio,X509 * cert)3439 static void print_cert_key_info(BIO *bio, X509 *cert)
3440 {
3441 EVP_PKEY *pkey = X509_get0_pubkey(cert);
3442 char *curve = NULL;
3443 const char *keyalg;
3444
3445 if (pkey == NULL)
3446 return;
3447 keyalg = EVP_PKEY_get0_type_name(pkey);
3448 if (keyalg == NULL)
3449 keyalg = OBJ_nid2ln(EVP_PKEY_get_base_id(pkey));
3450 if (EVP_PKEY_id(pkey) == EVP_PKEY_EC)
3451 curve = ec_curve_name(pkey);
3452 if (curve != NULL)
3453 BIO_printf(bio, " a:PKEY: %s, (%s); sigalg: %s\n",
3454 keyalg, curve,
3455 OBJ_nid2ln(X509_get_signature_nid(cert)));
3456 else
3457 BIO_printf(bio, " a:PKEY: %s, %d (bit); sigalg: %s\n",
3458 keyalg, EVP_PKEY_get_bits(pkey),
3459 OBJ_nid2ln(X509_get_signature_nid(cert)));
3460 OPENSSL_free(curve);
3461 }
3462
print_stuff(BIO * bio,SSL * s,int full)3463 static void print_stuff(BIO *bio, SSL *s, int full)
3464 {
3465 X509 *peer = NULL;
3466 STACK_OF(X509) *sk;
3467 const SSL_CIPHER *c;
3468 int i, istls13 = (SSL_version(s) == TLS1_3_VERSION);
3469 long verify_result;
3470 #ifndef OPENSSL_NO_COMP
3471 const COMP_METHOD *comp, *expansion;
3472 #endif
3473 unsigned char *exportedkeymat;
3474 #ifndef OPENSSL_NO_CT
3475 const SSL_CTX *ctx = SSL_get_SSL_CTX(s);
3476 #endif
3477
3478 if (full) {
3479 int got_a_chain = 0;
3480
3481 sk = SSL_get_peer_cert_chain(s);
3482 if (sk != NULL) {
3483 got_a_chain = 1;
3484
3485 BIO_printf(bio, "---\nCertificate chain\n");
3486 for (i = 0; i < sk_X509_num(sk); i++) {
3487 X509 *chain_cert = sk_X509_value(sk, i);
3488
3489 BIO_printf(bio, "%2d s:", i);
3490 X509_NAME_print_ex(bio, X509_get_subject_name(chain_cert), 0, get_nameopt());
3491 BIO_puts(bio, "\n");
3492 BIO_printf(bio, " i:");
3493 X509_NAME_print_ex(bio, X509_get_issuer_name(chain_cert), 0, get_nameopt());
3494 BIO_puts(bio, "\n");
3495 print_cert_key_info(bio, chain_cert);
3496 BIO_printf(bio, " v:NotBefore: ");
3497 ASN1_TIME_print(bio, X509_get0_notBefore(chain_cert));
3498 BIO_printf(bio, "; NotAfter: ");
3499 ASN1_TIME_print(bio, X509_get0_notAfter(chain_cert));
3500 BIO_puts(bio, "\n");
3501 if (c_showcerts)
3502 PEM_write_bio_X509(bio, chain_cert);
3503 }
3504 }
3505
3506 BIO_printf(bio, "---\n");
3507 peer = SSL_get0_peer_certificate(s);
3508 if (peer != NULL) {
3509 BIO_printf(bio, "Server certificate\n");
3510
3511 /* Redundant if we showed the whole chain */
3512 if (!(c_showcerts && got_a_chain))
3513 PEM_write_bio_X509(bio, peer);
3514 dump_cert_text(bio, peer);
3515 } else {
3516 BIO_printf(bio, "no peer certificate available\n");
3517 }
3518
3519 /* Only display RPK information if configured */
3520 if (SSL_get_negotiated_client_cert_type(s) == TLSEXT_cert_type_rpk)
3521 BIO_printf(bio, "Client-to-server raw public key negotiated\n");
3522 if (SSL_get_negotiated_server_cert_type(s) == TLSEXT_cert_type_rpk)
3523 BIO_printf(bio, "Server-to-client raw public key negotiated\n");
3524 if (enable_server_rpk) {
3525 EVP_PKEY *peer_rpk = SSL_get0_peer_rpk(s);
3526
3527 if (peer_rpk != NULL) {
3528 BIO_printf(bio, "Server raw public key\n");
3529 EVP_PKEY_print_public(bio, peer_rpk, 2, NULL);
3530 } else {
3531 BIO_printf(bio, "no peer rpk available\n");
3532 }
3533 }
3534
3535 print_ca_names(bio, s);
3536
3537 ssl_print_sigalgs(bio, s);
3538 ssl_print_tmp_key(bio, s);
3539
3540 #ifndef OPENSSL_NO_CT
3541 /*
3542 * When the SSL session is anonymous, or resumed via an abbreviated
3543 * handshake, no SCTs are provided as part of the handshake. While in
3544 * a resumed session SCTs may be present in the session's certificate,
3545 * no callbacks are invoked to revalidate these, and in any case that
3546 * set of SCTs may be incomplete. Thus it makes little sense to
3547 * attempt to display SCTs from a resumed session's certificate, and of
3548 * course none are associated with an anonymous peer.
3549 */
3550 if (peer != NULL && !SSL_session_reused(s) && SSL_ct_is_enabled(s)) {
3551 const STACK_OF(SCT) *scts = SSL_get0_peer_scts(s);
3552 int sct_count = scts != NULL ? sk_SCT_num(scts) : 0;
3553
3554 BIO_printf(bio, "---\nSCTs present (%i)\n", sct_count);
3555 if (sct_count > 0) {
3556 const CTLOG_STORE *log_store = SSL_CTX_get0_ctlog_store(ctx);
3557
3558 BIO_printf(bio, "---\n");
3559 for (i = 0; i < sct_count; ++i) {
3560 SCT *sct = sk_SCT_value(scts, i);
3561
3562 BIO_printf(bio, "SCT validation status: %s\n",
3563 SCT_validation_status_string(sct));
3564 SCT_print(sct, bio, 0, log_store);
3565 if (i < sct_count - 1)
3566 BIO_printf(bio, "\n---\n");
3567 }
3568 BIO_printf(bio, "\n");
3569 }
3570 }
3571 #endif
3572
3573 BIO_printf(bio,
3574 "---\nSSL handshake has read %ju bytes "
3575 "and written %ju bytes\n",
3576 BIO_number_read(SSL_get_rbio(s)),
3577 BIO_number_written(SSL_get_wbio(s)));
3578 }
3579 print_verify_detail(s, bio);
3580 BIO_printf(bio, (SSL_session_reused(s) ? "---\nReused, " : "---\nNew, "));
3581 c = SSL_get_current_cipher(s);
3582 BIO_printf(bio, "%s, Cipher is %s\n",
3583 SSL_CIPHER_get_version(c), SSL_CIPHER_get_name(c));
3584 BIO_printf(bio, "Protocol: %s\n", SSL_get_version(s));
3585 if (peer != NULL) {
3586 EVP_PKEY *pktmp;
3587
3588 pktmp = X509_get0_pubkey(peer);
3589 BIO_printf(bio, "Server public key is %d bit\n",
3590 EVP_PKEY_get_bits(pktmp));
3591 }
3592
3593 ssl_print_secure_renegotiation_notes(bio, s);
3594
3595 #ifndef OPENSSL_NO_COMP
3596 comp = SSL_get_current_compression(s);
3597 expansion = SSL_get_current_expansion(s);
3598 BIO_printf(bio, "Compression: %s\n",
3599 comp ? SSL_COMP_get_name(comp) : "NONE");
3600 BIO_printf(bio, "Expansion: %s\n",
3601 expansion ? SSL_COMP_get_name(expansion) : "NONE");
3602 #endif
3603 #ifndef OPENSSL_NO_KTLS
3604 if (BIO_get_ktls_send(SSL_get_wbio(s)))
3605 BIO_printf(bio_err, "Using Kernel TLS for sending\n");
3606 if (BIO_get_ktls_recv(SSL_get_rbio(s)))
3607 BIO_printf(bio_err, "Using Kernel TLS for receiving\n");
3608 #endif
3609
3610 if (OSSL_TRACE_ENABLED(TLS)) {
3611 /* Print out local port of connection: useful for debugging */
3612 int sock;
3613 union BIO_sock_info_u info;
3614
3615 sock = SSL_get_fd(s);
3616 if ((info.addr = BIO_ADDR_new()) != NULL
3617 && BIO_sock_info(sock, BIO_SOCK_INFO_ADDRESS, &info)) {
3618 BIO_printf(bio_c_out, "LOCAL PORT is %u\n",
3619 ntohs(BIO_ADDR_rawport(info.addr)));
3620 }
3621 BIO_ADDR_free(info.addr);
3622 }
3623
3624 #if !defined(OPENSSL_NO_NEXTPROTONEG)
3625 if (next_proto.status != -1) {
3626 const unsigned char *proto;
3627 unsigned int proto_len;
3628 SSL_get0_next_proto_negotiated(s, &proto, &proto_len);
3629 BIO_printf(bio, "Next protocol: (%d) ", next_proto.status);
3630 BIO_write(bio, proto, proto_len);
3631 BIO_write(bio, "\n", 1);
3632 }
3633 #endif
3634 {
3635 const unsigned char *proto;
3636 unsigned int proto_len;
3637 SSL_get0_alpn_selected(s, &proto, &proto_len);
3638 if (proto_len > 0) {
3639 BIO_printf(bio, "ALPN protocol: ");
3640 BIO_write(bio, proto, proto_len);
3641 BIO_write(bio, "\n", 1);
3642 } else
3643 BIO_printf(bio, "No ALPN negotiated\n");
3644 }
3645
3646 #ifndef OPENSSL_NO_SRTP
3647 {
3648 SRTP_PROTECTION_PROFILE *srtp_profile = SSL_get_selected_srtp_profile(s);
3649
3650 if (srtp_profile)
3651 BIO_printf(bio, "SRTP Extension negotiated, profile=%s\n",
3652 srtp_profile->name);
3653 }
3654 #endif
3655
3656 if (istls13) {
3657 switch (SSL_get_early_data_status(s)) {
3658 case SSL_EARLY_DATA_NOT_SENT:
3659 BIO_printf(bio, "Early data was not sent\n");
3660 break;
3661
3662 case SSL_EARLY_DATA_REJECTED:
3663 BIO_printf(bio, "Early data was rejected\n");
3664 break;
3665
3666 case SSL_EARLY_DATA_ACCEPTED:
3667 BIO_printf(bio, "Early data was accepted\n");
3668 break;
3669 }
3670
3671 /*
3672 * We also print the verify results when we dump session information,
3673 * but in TLSv1.3 we may not get that right away (or at all) depending
3674 * on when we get a NewSessionTicket. Therefore, we print it now as well.
3675 */
3676 verify_result = SSL_get_verify_result(s);
3677 BIO_printf(bio, "Verify return code: %ld (%s)\n", verify_result,
3678 X509_verify_cert_error_string(verify_result));
3679 } else {
3680 /* In TLSv1.3 we do this on arrival of a NewSessionTicket */
3681 SSL_SESSION_print(bio, SSL_get_session(s));
3682 }
3683
3684 if (SSL_get_session(s) != NULL && keymatexportlabel != NULL) {
3685 BIO_printf(bio, "Keying material exporter:\n");
3686 BIO_printf(bio, " Label: '%s'\n", keymatexportlabel);
3687 BIO_printf(bio, " Length: %i bytes\n", keymatexportlen);
3688 exportedkeymat = app_malloc(keymatexportlen, "export key");
3689 if (SSL_export_keying_material(s, exportedkeymat,
3690 keymatexportlen,
3691 keymatexportlabel,
3692 strlen(keymatexportlabel),
3693 NULL, 0, 0)
3694 <= 0) {
3695 BIO_printf(bio, " Error\n");
3696 } else {
3697 BIO_printf(bio, " Keying material: ");
3698 for (i = 0; i < keymatexportlen; i++)
3699 BIO_printf(bio, "%02X", exportedkeymat[i]);
3700 BIO_printf(bio, "\n");
3701 }
3702 OPENSSL_free(exportedkeymat);
3703 }
3704 BIO_printf(bio, "---\n");
3705 /* flush, or debugging output gets mixed with http response */
3706 (void)BIO_flush(bio);
3707 }
3708
3709 #ifndef OPENSSL_NO_OCSP
ocsp_resp_cb(SSL * s,void * arg)3710 static int ocsp_resp_cb(SSL *s, void *arg)
3711 {
3712 const unsigned char *p;
3713 int len;
3714 OCSP_RESPONSE *rsp;
3715 len = SSL_get_tlsext_status_ocsp_resp(s, &p);
3716 BIO_puts(arg, "OCSP response: ");
3717 if (p == NULL) {
3718 BIO_puts(arg, "no response sent\n");
3719 return 1;
3720 }
3721 rsp = d2i_OCSP_RESPONSE(NULL, &p, len);
3722 if (rsp == NULL) {
3723 BIO_puts(arg, "response parse error\n");
3724 BIO_dump_indent(arg, (char *)p, len, 4);
3725 return 0;
3726 }
3727 BIO_puts(arg, "\n======================================\n");
3728 OCSP_RESPONSE_print(arg, rsp, 0);
3729 BIO_puts(arg, "======================================\n");
3730 OCSP_RESPONSE_free(rsp);
3731 return 1;
3732 }
3733 #endif
3734
ldap_ExtendedResponse_parse(const char * buf,long rem)3735 static int ldap_ExtendedResponse_parse(const char *buf, long rem)
3736 {
3737 const unsigned char *cur, *end;
3738 long len;
3739 int tag, xclass, inf, ret = -1;
3740
3741 cur = (const unsigned char *)buf;
3742 end = cur + rem;
3743
3744 /*
3745 * From RFC 4511:
3746 *
3747 * LDAPMessage ::= SEQUENCE {
3748 * messageID MessageID,
3749 * protocolOp CHOICE {
3750 * ...
3751 * extendedResp ExtendedResponse,
3752 * ... },
3753 * controls [0] Controls OPTIONAL }
3754 *
3755 * ExtendedResponse ::= [APPLICATION 24] SEQUENCE {
3756 * COMPONENTS OF LDAPResult,
3757 * responseName [10] LDAPOID OPTIONAL,
3758 * responseValue [11] OCTET STRING OPTIONAL }
3759 *
3760 * LDAPResult ::= SEQUENCE {
3761 * resultCode ENUMERATED {
3762 * success (0),
3763 * ...
3764 * other (80),
3765 * ... },
3766 * matchedDN LDAPDN,
3767 * diagnosticMessage LDAPString,
3768 * referral [3] Referral OPTIONAL }
3769 */
3770
3771 /* pull SEQUENCE */
3772 inf = ASN1_get_object(&cur, &len, &tag, &xclass, rem);
3773 if (inf != V_ASN1_CONSTRUCTED || tag != V_ASN1_SEQUENCE || (rem = end - cur, len > rem)) {
3774 BIO_printf(bio_err, "Unexpected LDAP response\n");
3775 goto end;
3776 }
3777
3778 rem = len; /* ensure that we don't overstep the SEQUENCE */
3779
3780 /* pull MessageID */
3781 inf = ASN1_get_object(&cur, &len, &tag, &xclass, rem);
3782 if (inf != V_ASN1_UNIVERSAL || tag != V_ASN1_INTEGER || (rem = end - cur, len > rem)) {
3783 BIO_printf(bio_err, "No MessageID\n");
3784 goto end;
3785 }
3786
3787 cur += len; /* shall we check for MessageId match or just skip? */
3788
3789 /* pull [APPLICATION 24] */
3790 rem = end - cur;
3791 inf = ASN1_get_object(&cur, &len, &tag, &xclass, rem);
3792 if (inf != V_ASN1_CONSTRUCTED || xclass != V_ASN1_APPLICATION || tag != 24) {
3793 BIO_printf(bio_err, "Not ExtendedResponse\n");
3794 goto end;
3795 }
3796
3797 /* pull resultCode */
3798 rem = end - cur;
3799 inf = ASN1_get_object(&cur, &len, &tag, &xclass, rem);
3800 if (inf != V_ASN1_UNIVERSAL || tag != V_ASN1_ENUMERATED || len == 0 || (rem = end - cur, len > rem)) {
3801 BIO_printf(bio_err, "Not LDAPResult\n");
3802 goto end;
3803 }
3804
3805 /* len should always be one, but just in case... */
3806 for (ret = 0, inf = 0; inf < len; inf++) {
3807 ret <<= 8;
3808 ret |= cur[inf];
3809 }
3810 /* There is more data, but we don't care... */
3811 end:
3812 return ret;
3813 }
3814
3815 /*
3816 * Host dNS Name verifier: used for checking that the hostname is in dNS format
3817 * before setting it as SNI
3818 */
is_dNS_name(const char * host)3819 static int is_dNS_name(const char *host)
3820 {
3821 const size_t MAX_LABEL_LENGTH = 63;
3822 size_t i;
3823 int isdnsname = 0;
3824 size_t length = strlen(host);
3825 size_t label_length = 0;
3826 int all_numeric = 1;
3827
3828 /*
3829 * Deviation from strict DNS name syntax, also check names with '_'
3830 * Check DNS name syntax, any '-' or '.' must be internal,
3831 * and on either side of each '.' we can't have a '-' or '.'.
3832 *
3833 * If the name has just one label, we don't consider it a DNS name.
3834 */
3835 for (i = 0; i < length && label_length < MAX_LABEL_LENGTH; ++i) {
3836 char c = host[i];
3837
3838 if ((c >= 'a' && c <= 'z')
3839 || (c >= 'A' && c <= 'Z')
3840 || c == '_') {
3841 label_length += 1;
3842 all_numeric = 0;
3843 continue;
3844 }
3845
3846 if (c >= '0' && c <= '9') {
3847 label_length += 1;
3848 continue;
3849 }
3850
3851 /* Dot and hyphen cannot be first or last. */
3852 if (i > 0 && i < length - 1) {
3853 if (c == '-') {
3854 label_length += 1;
3855 continue;
3856 }
3857 /*
3858 * Next to a dot the preceding and following characters must not be
3859 * another dot or a hyphen. Otherwise, record that the name is
3860 * plausible, since it has two or more labels.
3861 */
3862 if (c == '.'
3863 && host[i + 1] != '.'
3864 && host[i - 1] != '-'
3865 && host[i + 1] != '-') {
3866 label_length = 0;
3867 isdnsname = 1;
3868 continue;
3869 }
3870 }
3871 isdnsname = 0;
3872 break;
3873 }
3874
3875 /* dNS name must not be all numeric and labels must be shorter than 64 characters. */
3876 isdnsname &= !all_numeric && !(label_length == MAX_LABEL_LENGTH);
3877
3878 return isdnsname;
3879 }
3880
user_data_init(struct user_data_st * user_data,SSL * con,char * buf,size_t bufmax,int mode)3881 static void user_data_init(struct user_data_st *user_data, SSL *con, char *buf,
3882 size_t bufmax, int mode)
3883 {
3884 user_data->con = con;
3885 user_data->buf = buf;
3886 user_data->bufmax = bufmax;
3887 user_data->buflen = 0;
3888 user_data->bufoff = 0;
3889 user_data->mode = mode;
3890 user_data->isfin = 0;
3891 }
3892
user_data_add(struct user_data_st * user_data,size_t i)3893 static int user_data_add(struct user_data_st *user_data, size_t i)
3894 {
3895 if (user_data->buflen != 0 || i > user_data->bufmax)
3896 return 0;
3897
3898 user_data->buflen = i;
3899 user_data->bufoff = 0;
3900
3901 return 1;
3902 }
3903
3904 #define USER_COMMAND_HELP 0
3905 #define USER_COMMAND_QUIT 1
3906 #define USER_COMMAND_RECONNECT 2
3907 #define USER_COMMAND_RENEGOTIATE 3
3908 #define USER_COMMAND_KEY_UPDATE 4
3909 #define USER_COMMAND_FIN 5
3910
user_data_execute(struct user_data_st * user_data,int cmd,char * arg)3911 static int user_data_execute(struct user_data_st *user_data, int cmd, char *arg)
3912 {
3913 switch (cmd) {
3914 case USER_COMMAND_HELP:
3915 /* This only ever occurs in advanced mode, so just emit advanced help */
3916 BIO_printf(bio_err, "Enter text to send to the peer followed by <enter>\n");
3917 BIO_printf(bio_err, "To issue a command insert {cmd} or {cmd:arg} anywhere in the text\n");
3918 BIO_printf(bio_err, "Entering {{ will send { to the peer\n");
3919 BIO_printf(bio_err, "The following commands are available\n");
3920 BIO_printf(bio_err, " {help}: Get this help text\n");
3921 BIO_printf(bio_err, " {quit}: Close the connection to the peer\n");
3922 BIO_printf(bio_err, " {reconnect}: Reconnect to the peer\n");
3923 if (SSL_is_quic(user_data->con)) {
3924 BIO_printf(bio_err, " {fin}: Send FIN on the stream. No further writing is possible\n");
3925 } else if (SSL_version(user_data->con) == TLS1_3_VERSION) {
3926 BIO_printf(bio_err, " {keyup:req|noreq}: Send a Key Update message\n");
3927 BIO_printf(bio_err, " Arguments:\n");
3928 BIO_printf(bio_err, " req = peer update requested (default)\n");
3929 BIO_printf(bio_err, " noreq = peer update not requested\n");
3930 } else {
3931 BIO_printf(bio_err, " {reneg}: Attempt to renegotiate\n");
3932 }
3933 BIO_printf(bio_err, "\n");
3934 return USER_DATA_PROCESS_NO_DATA;
3935
3936 case USER_COMMAND_QUIT:
3937 BIO_printf(bio_err, "DONE\n");
3938 return USER_DATA_PROCESS_SHUT;
3939
3940 case USER_COMMAND_RECONNECT:
3941 BIO_printf(bio_err, "RECONNECTING\n");
3942 do_ssl_shutdown(user_data->con);
3943 SSL_set_connect_state(user_data->con);
3944 BIO_closesocket(SSL_get_fd(user_data->con));
3945 return USER_DATA_PROCESS_RESTART;
3946
3947 case USER_COMMAND_RENEGOTIATE:
3948 BIO_printf(bio_err, "RENEGOTIATING\n");
3949 if (!SSL_renegotiate(user_data->con))
3950 break;
3951 return USER_DATA_PROCESS_CONTINUE;
3952
3953 case USER_COMMAND_KEY_UPDATE: {
3954 int updatetype;
3955
3956 if (OPENSSL_strcasecmp(arg, "req") == 0)
3957 updatetype = SSL_KEY_UPDATE_REQUESTED;
3958 else if (OPENSSL_strcasecmp(arg, "noreq") == 0)
3959 updatetype = SSL_KEY_UPDATE_NOT_REQUESTED;
3960 else
3961 return USER_DATA_PROCESS_BAD_ARGUMENT;
3962 BIO_printf(bio_err, "KEYUPDATE\n");
3963 if (!SSL_key_update(user_data->con, updatetype))
3964 break;
3965 return USER_DATA_PROCESS_CONTINUE;
3966 }
3967
3968 case USER_COMMAND_FIN:
3969 if (!SSL_stream_conclude(user_data->con, 0))
3970 break;
3971 user_data->isfin = 1;
3972 return USER_DATA_PROCESS_NO_DATA;
3973
3974 default:
3975 break;
3976 }
3977
3978 BIO_printf(bio_err, "ERROR\n");
3979 ERR_print_errors(bio_err);
3980
3981 return USER_DATA_PROCESS_SHUT;
3982 }
3983
user_data_process(struct user_data_st * user_data,size_t * len,size_t * off)3984 static int user_data_process(struct user_data_st *user_data, size_t *len,
3985 size_t *off)
3986 {
3987 char *buf_start = user_data->buf + user_data->bufoff;
3988 size_t outlen = user_data->buflen;
3989
3990 if (user_data->buflen == 0) {
3991 *len = 0;
3992 *off = 0;
3993 return USER_DATA_PROCESS_NO_DATA;
3994 }
3995
3996 if (user_data->mode == USER_DATA_MODE_BASIC) {
3997 switch (buf_start[0]) {
3998 case 'Q':
3999 user_data->buflen = user_data->bufoff = *len = *off = 0;
4000 return user_data_execute(user_data, USER_COMMAND_QUIT, NULL);
4001
4002 case 'C':
4003 user_data->buflen = user_data->bufoff = *len = *off = 0;
4004 return user_data_execute(user_data, USER_COMMAND_RECONNECT, NULL);
4005
4006 case 'R':
4007 user_data->buflen = user_data->bufoff = *len = *off = 0;
4008 return user_data_execute(user_data, USER_COMMAND_RENEGOTIATE, NULL);
4009
4010 case 'K':
4011 case 'k':
4012 user_data->buflen = user_data->bufoff = *len = *off = 0;
4013 return user_data_execute(user_data, USER_COMMAND_KEY_UPDATE,
4014 buf_start[0] == 'K' ? "req" : "noreq");
4015 default:
4016 break;
4017 }
4018 } else if (user_data->mode == USER_DATA_MODE_ADVANCED) {
4019 char *cmd_start = buf_start;
4020
4021 cmd_start[outlen] = '\0';
4022 for (;;) {
4023 cmd_start = strchr(cmd_start, '{');
4024 if (cmd_start == buf_start && *(cmd_start + 1) == '{') {
4025 /* The "{" is escaped, so skip it */
4026 cmd_start += 2;
4027 buf_start++;
4028 user_data->bufoff++;
4029 user_data->buflen--;
4030 outlen--;
4031 continue;
4032 }
4033 break;
4034 }
4035
4036 if (cmd_start == buf_start) {
4037 /* Command detected */
4038 char *cmd_end = strchr(cmd_start, '}');
4039 char *arg_start;
4040 int cmd = -1, ret = USER_DATA_PROCESS_NO_DATA;
4041 size_t oldoff;
4042
4043 if (cmd_end == NULL) {
4044 /* Malformed command */
4045 cmd_start[outlen - 1] = '\0';
4046 BIO_printf(bio_err,
4047 "ERROR PROCESSING COMMAND. REST OF LINE IGNORED: %s\n",
4048 cmd_start);
4049 user_data->buflen = user_data->bufoff = *len = *off = 0;
4050 return USER_DATA_PROCESS_NO_DATA;
4051 }
4052 *cmd_end = '\0';
4053 arg_start = strchr(cmd_start, ':');
4054 if (arg_start != NULL) {
4055 *arg_start = '\0';
4056 arg_start++;
4057 }
4058 /* Skip over the { */
4059 cmd_start++;
4060 /*
4061 * Now we have cmd_start pointing to a NUL terminated string for
4062 * the command, and arg_start either being NULL or pointing to a
4063 * NUL terminated string for the argument.
4064 */
4065 if (OPENSSL_strcasecmp(cmd_start, "help") == 0) {
4066 cmd = USER_COMMAND_HELP;
4067 } else if (OPENSSL_strcasecmp(cmd_start, "quit") == 0) {
4068 cmd = USER_COMMAND_QUIT;
4069 } else if (OPENSSL_strcasecmp(cmd_start, "reconnect") == 0) {
4070 cmd = USER_COMMAND_RECONNECT;
4071 } else if (SSL_is_quic(user_data->con)) {
4072 if (OPENSSL_strcasecmp(cmd_start, "fin") == 0)
4073 cmd = USER_COMMAND_FIN;
4074 }
4075 if (SSL_version(user_data->con) == TLS1_3_VERSION) {
4076 if (OPENSSL_strcasecmp(cmd_start, "keyup") == 0) {
4077 cmd = USER_COMMAND_KEY_UPDATE;
4078 if (arg_start == NULL)
4079 arg_start = "req";
4080 }
4081 } else {
4082 /* (D)TLSv1.2 or below */
4083 if (OPENSSL_strcasecmp(cmd_start, "reneg") == 0)
4084 cmd = USER_COMMAND_RENEGOTIATE;
4085 }
4086 if (cmd == -1) {
4087 BIO_printf(bio_err, "UNRECOGNISED COMMAND (IGNORED): %s\n",
4088 cmd_start);
4089 } else {
4090 ret = user_data_execute(user_data, cmd, arg_start);
4091 if (ret == USER_DATA_PROCESS_BAD_ARGUMENT) {
4092 BIO_printf(bio_err, "BAD ARGUMENT (COMMAND IGNORED): %s\n",
4093 arg_start);
4094 ret = USER_DATA_PROCESS_NO_DATA;
4095 }
4096 }
4097 oldoff = user_data->bufoff;
4098 user_data->bufoff = (cmd_end - user_data->buf) + 1;
4099 user_data->buflen -= user_data->bufoff - oldoff;
4100 if (user_data->buf + 1 == cmd_start
4101 && user_data->buflen == 1
4102 && user_data->buf[user_data->bufoff] == '\n') {
4103 /*
4104 * This command was the only thing on the whole line. We
4105 * suppress the final `\n`
4106 */
4107 user_data->bufoff = 0;
4108 user_data->buflen = 0;
4109 }
4110 *len = *off = 0;
4111 return ret;
4112 } else if (cmd_start != NULL) {
4113 /*
4114 * There is a command on this line, but its not at the start. Output
4115 * the start of the line, and we'll process the command next time
4116 * we call this function
4117 */
4118 outlen = cmd_start - buf_start;
4119 }
4120 }
4121
4122 if (user_data->isfin) {
4123 user_data->buflen = user_data->bufoff = *len = *off = 0;
4124 return USER_DATA_PROCESS_NO_DATA;
4125 }
4126
4127 #ifdef CHARSET_EBCDIC
4128 ebcdic2ascii(buf_start, buf_start, outlen);
4129 #endif
4130 *len = outlen;
4131 *off = user_data->bufoff;
4132 user_data->buflen -= outlen;
4133 if (user_data->buflen == 0)
4134 user_data->bufoff = 0;
4135 else
4136 user_data->bufoff += outlen;
4137 return USER_DATA_PROCESS_CONTINUE;
4138 }
4139
user_data_has_data(struct user_data_st * user_data)4140 static int user_data_has_data(struct user_data_st *user_data)
4141 {
4142 return user_data->buflen > 0;
4143 }
4144 #endif /* OPENSSL_NO_SOCK */
4145