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