1 /*
2 * Copyright 1995-2024 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 SSL_SESSION_up_ref(psksess);
212 usesess = psksess;
213 } else {
214 long key_len;
215 unsigned char *key = OPENSSL_hexstr2buf(psk_key, &key_len);
216
217 if (key == NULL) {
218 BIO_printf(bio_err, "Could not convert PSK key '%s' to buffer\n",
219 psk_key);
220 return 0;
221 }
222
223 /* We default to SHA-256 */
224 cipher = SSL_CIPHER_find(s, tls13_aes128gcmsha256_id);
225 if (cipher == NULL) {
226 BIO_printf(bio_err, "Error finding suitable ciphersuite\n");
227 OPENSSL_free(key);
228 return 0;
229 }
230
231 usesess = SSL_SESSION_new();
232 if (usesess == NULL
233 || !SSL_SESSION_set1_master_key(usesess, key, key_len)
234 || !SSL_SESSION_set_cipher(usesess, cipher)
235 || !SSL_SESSION_set_protocol_version(usesess, TLS1_3_VERSION)) {
236 OPENSSL_free(key);
237 goto err;
238 }
239 OPENSSL_free(key);
240 }
241
242 cipher = SSL_SESSION_get0_cipher(usesess);
243 if (cipher == NULL)
244 goto err;
245
246 if (md != NULL && SSL_CIPHER_get_handshake_digest(cipher) != md) {
247 /* PSK not usable, ignore it */
248 *id = NULL;
249 *idlen = 0;
250 *sess = NULL;
251 SSL_SESSION_free(usesess);
252 } else {
253 *sess = usesess;
254 *id = (unsigned char *)psk_identity;
255 *idlen = strlen(psk_identity);
256 }
257
258 return 1;
259
260 err:
261 SSL_SESSION_free(usesess);
262 return 0;
263 }
264
265 /* This is a context that we pass to callbacks */
266 typedef struct tlsextctx_st {
267 BIO *biodebug;
268 int ack;
269 } tlsextctx;
270
ssl_servername_cb(SSL * s,int * ad,void * arg)271 static int ssl_servername_cb(SSL *s, int *ad, void *arg)
272 {
273 tlsextctx *p = (tlsextctx *) arg;
274 const char *hn = SSL_get_servername(s, TLSEXT_NAMETYPE_host_name);
275 if (SSL_get_servername_type(s) != -1)
276 p->ack = !SSL_session_reused(s) && hn != NULL;
277 else
278 BIO_printf(bio_err, "Can't use SSL_get_servername\n");
279
280 return SSL_TLSEXT_ERR_OK;
281 }
282
283 #ifndef OPENSSL_NO_NEXTPROTONEG
284 /* This the context that we pass to next_proto_cb */
285 typedef struct tlsextnextprotoctx_st {
286 unsigned char *data;
287 size_t len;
288 int status;
289 } tlsextnextprotoctx;
290
291 static tlsextnextprotoctx next_proto;
292
next_proto_cb(SSL * s,unsigned char ** out,unsigned char * outlen,const unsigned char * in,unsigned int inlen,void * arg)293 static int next_proto_cb(SSL *s, unsigned char **out, unsigned char *outlen,
294 const unsigned char *in, unsigned int inlen,
295 void *arg)
296 {
297 tlsextnextprotoctx *ctx = arg;
298
299 if (!c_quiet) {
300 /* We can assume that |in| is syntactically valid. */
301 unsigned i;
302 BIO_printf(bio_c_out, "Protocols advertised by server: ");
303 for (i = 0; i < inlen;) {
304 if (i)
305 BIO_write(bio_c_out, ", ", 2);
306 BIO_write(bio_c_out, &in[i + 1], in[i]);
307 i += in[i] + 1;
308 }
309 BIO_write(bio_c_out, "\n", 1);
310 }
311
312 ctx->status =
313 SSL_select_next_proto(out, outlen, in, inlen, ctx->data, ctx->len);
314 return SSL_TLSEXT_ERR_OK;
315 }
316 #endif /* ndef OPENSSL_NO_NEXTPROTONEG */
317
serverinfo_cli_parse_cb(SSL * s,unsigned int ext_type,const unsigned char * in,size_t inlen,int * al,void * arg)318 static int serverinfo_cli_parse_cb(SSL *s, unsigned int ext_type,
319 const unsigned char *in, size_t inlen,
320 int *al, void *arg)
321 {
322 char pem_name[100];
323 unsigned char ext_buf[4 + 65536];
324
325 /* Reconstruct the type/len fields prior to extension data */
326 inlen &= 0xffff; /* for formal memcmpy correctness */
327 ext_buf[0] = (unsigned char)(ext_type >> 8);
328 ext_buf[1] = (unsigned char)(ext_type);
329 ext_buf[2] = (unsigned char)(inlen >> 8);
330 ext_buf[3] = (unsigned char)(inlen);
331 memcpy(ext_buf + 4, in, inlen);
332
333 BIO_snprintf(pem_name, sizeof(pem_name), "SERVERINFO FOR EXTENSION %d",
334 ext_type);
335 PEM_write_bio(bio_c_out, pem_name, "", ext_buf, 4 + inlen);
336 return 1;
337 }
338
339 /*
340 * Hex decoder that tolerates optional whitespace. Returns number of bytes
341 * produced, advances inptr to end of input string.
342 */
hexdecode(const char ** inptr,void * result)343 static ossl_ssize_t hexdecode(const char **inptr, void *result)
344 {
345 unsigned char **out = (unsigned char **)result;
346 const char *in = *inptr;
347 unsigned char *ret = app_malloc(strlen(in) / 2, "hexdecode");
348 unsigned char *cp = ret;
349 uint8_t byte;
350 int nibble = 0;
351
352 if (ret == NULL)
353 return -1;
354
355 for (byte = 0; *in; ++in) {
356 int x;
357
358 if (isspace(_UC(*in)))
359 continue;
360 x = OPENSSL_hexchar2int(*in);
361 if (x < 0) {
362 OPENSSL_free(ret);
363 return 0;
364 }
365 byte |= (char)x;
366 if ((nibble ^= 1) == 0) {
367 *cp++ = byte;
368 byte = 0;
369 } else {
370 byte <<= 4;
371 }
372 }
373 if (nibble != 0) {
374 OPENSSL_free(ret);
375 return 0;
376 }
377 *inptr = in;
378
379 return cp - (*out = ret);
380 }
381
382 /*
383 * Decode unsigned 0..255, returns 1 on success, <= 0 on failure. Advances
384 * inptr to next field skipping leading whitespace.
385 */
checked_uint8(const char ** inptr,void * out)386 static ossl_ssize_t checked_uint8(const char **inptr, void *out)
387 {
388 uint8_t *result = (uint8_t *)out;
389 const char *in = *inptr;
390 char *endp;
391 long v;
392 int e;
393
394 save_errno();
395 v = strtol(in, &endp, 10);
396 e = restore_errno();
397
398 if (((v == LONG_MIN || v == LONG_MAX) && e == ERANGE) ||
399 endp == in || !isspace(_UC(*endp)) ||
400 v != (*result = (uint8_t) v)) {
401 return -1;
402 }
403 for (in = endp; isspace(_UC(*in)); ++in)
404 continue;
405
406 *inptr = in;
407 return 1;
408 }
409
410 struct tlsa_field {
411 void *var;
412 const char *name;
413 ossl_ssize_t (*parser)(const char **, void *);
414 };
415
tlsa_import_rr(SSL * con,const char * rrdata)416 static int tlsa_import_rr(SSL *con, const char *rrdata)
417 {
418 /* Not necessary to re-init these values; the "parsers" do that. */
419 static uint8_t usage;
420 static uint8_t selector;
421 static uint8_t mtype;
422 static unsigned char *data;
423 static struct tlsa_field tlsa_fields[] = {
424 { &usage, "usage", checked_uint8 },
425 { &selector, "selector", checked_uint8 },
426 { &mtype, "mtype", checked_uint8 },
427 { &data, "data", hexdecode },
428 { NULL, }
429 };
430 struct tlsa_field *f;
431 int ret;
432 const char *cp = rrdata;
433 ossl_ssize_t len = 0;
434
435 for (f = tlsa_fields; f->var; ++f) {
436 /* Returns number of bytes produced, advances cp to next field */
437 if ((len = f->parser(&cp, f->var)) <= 0) {
438 BIO_printf(bio_err, "%s: warning: bad TLSA %s field in: %s\n",
439 prog, f->name, rrdata);
440 return 0;
441 }
442 }
443 /* The data field is last, so len is its length */
444 ret = SSL_dane_tlsa_add(con, usage, selector, mtype, data, len);
445 OPENSSL_free(data);
446
447 if (ret == 0) {
448 ERR_print_errors(bio_err);
449 BIO_printf(bio_err, "%s: warning: unusable TLSA rrdata: %s\n",
450 prog, rrdata);
451 return 0;
452 }
453 if (ret < 0) {
454 ERR_print_errors(bio_err);
455 BIO_printf(bio_err, "%s: warning: error loading TLSA rrdata: %s\n",
456 prog, rrdata);
457 return 0;
458 }
459 return ret;
460 }
461
tlsa_import_rrset(SSL * con,STACK_OF (OPENSSL_STRING)* rrset)462 static int tlsa_import_rrset(SSL *con, STACK_OF(OPENSSL_STRING) *rrset)
463 {
464 int num = sk_OPENSSL_STRING_num(rrset);
465 int count = 0;
466 int i;
467
468 for (i = 0; i < num; ++i) {
469 char *rrdata = sk_OPENSSL_STRING_value(rrset, i);
470 if (tlsa_import_rr(con, rrdata) > 0)
471 ++count;
472 }
473 return count > 0;
474 }
475
476 typedef enum OPTION_choice {
477 OPT_COMMON,
478 OPT_4, OPT_6, OPT_HOST, OPT_PORT, OPT_CONNECT, OPT_BIND, OPT_UNIX,
479 OPT_XMPPHOST, OPT_VERIFY, OPT_NAMEOPT,
480 OPT_CERT, OPT_CRL, OPT_CRL_DOWNLOAD, OPT_SESS_OUT, OPT_SESS_IN,
481 OPT_CERTFORM, OPT_CRLFORM, OPT_VERIFY_RET_ERROR, OPT_VERIFY_QUIET,
482 OPT_BRIEF, OPT_PREXIT, OPT_NO_INTERACTIVE, OPT_CRLF, OPT_QUIET, OPT_NBIO,
483 OPT_SSL_CLIENT_ENGINE, OPT_IGN_EOF, OPT_NO_IGN_EOF,
484 OPT_DEBUG, OPT_TLSEXTDEBUG, OPT_STATUS, OPT_WDEBUG,
485 OPT_MSG, OPT_MSGFILE, OPT_ENGINE, OPT_TRACE, OPT_SECURITY_DEBUG,
486 OPT_SECURITY_DEBUG_VERBOSE, OPT_SHOWCERTS, OPT_NBIO_TEST, OPT_STATE,
487 OPT_PSK_IDENTITY, OPT_PSK, OPT_PSK_SESS,
488 #ifndef OPENSSL_NO_SRP
489 OPT_SRPUSER, OPT_SRPPASS, OPT_SRP_STRENGTH, OPT_SRP_LATEUSER,
490 OPT_SRP_MOREGROUPS,
491 #endif
492 OPT_SSL3, OPT_SSL_CONFIG,
493 OPT_TLS1_3, OPT_TLS1_2, OPT_TLS1_1, OPT_TLS1, OPT_DTLS, OPT_DTLS1,
494 OPT_DTLS1_2, OPT_QUIC, OPT_SCTP, OPT_TIMEOUT, OPT_MTU, OPT_KEYFORM,
495 OPT_PASS, OPT_CERT_CHAIN, OPT_KEY, OPT_RECONNECT, OPT_BUILD_CHAIN,
496 OPT_NEXTPROTONEG, OPT_ALPN,
497 OPT_CAPATH, OPT_NOCAPATH, OPT_CHAINCAPATH, OPT_VERIFYCAPATH,
498 OPT_CAFILE, OPT_NOCAFILE, OPT_CHAINCAFILE, OPT_VERIFYCAFILE,
499 OPT_CASTORE, OPT_NOCASTORE, OPT_CHAINCASTORE, OPT_VERIFYCASTORE,
500 OPT_SERVERINFO, OPT_STARTTLS, OPT_SERVERNAME, OPT_NOSERVERNAME, OPT_ASYNC,
501 OPT_USE_SRTP, OPT_KEYMATEXPORT, OPT_KEYMATEXPORTLEN, OPT_PROTOHOST,
502 OPT_MAXFRAGLEN, OPT_MAX_SEND_FRAG, OPT_SPLIT_SEND_FRAG, OPT_MAX_PIPELINES,
503 OPT_READ_BUF, OPT_KEYLOG_FILE, OPT_EARLY_DATA, OPT_REQCAFILE,
504 OPT_TFO,
505 OPT_V_ENUM,
506 OPT_X_ENUM,
507 OPT_S_ENUM, OPT_IGNORE_UNEXPECTED_EOF,
508 OPT_FALLBACKSCSV, OPT_NOCMDS, OPT_ADV, OPT_PROXY, OPT_PROXY_USER,
509 OPT_PROXY_PASS, OPT_DANE_TLSA_DOMAIN,
510 #ifndef OPENSSL_NO_CT
511 OPT_CT, OPT_NOCT, OPT_CTLOG_FILE,
512 #endif
513 OPT_DANE_TLSA_RRDATA, OPT_DANE_EE_NO_NAME,
514 OPT_ENABLE_PHA,
515 OPT_ENABLE_SERVER_RPK,
516 OPT_ENABLE_CLIENT_RPK,
517 OPT_SCTP_LABEL_BUG,
518 OPT_KTLS,
519 OPT_R_ENUM, OPT_PROV_ENUM
520 } OPTION_CHOICE;
521
522 const OPTIONS s_client_options[] = {
523 {OPT_HELP_STR, 1, '-', "Usage: %s [options] [host:port]\n"},
524
525 OPT_SECTION("General"),
526 {"help", OPT_HELP, '-', "Display this summary"},
527 #ifndef OPENSSL_NO_ENGINE
528 {"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"},
529 {"ssl_client_engine", OPT_SSL_CLIENT_ENGINE, 's',
530 "Specify engine to be used for client certificate operations"},
531 #endif
532 {"ssl_config", OPT_SSL_CONFIG, 's', "Use specified section for SSL_CTX configuration"},
533 #ifndef OPENSSL_NO_CT
534 {"ct", OPT_CT, '-', "Request and parse SCTs (also enables OCSP stapling)"},
535 {"noct", OPT_NOCT, '-', "Do not request or parse SCTs (default)"},
536 {"ctlogfile", OPT_CTLOG_FILE, '<', "CT log list CONF file"},
537 #endif
538
539 OPT_SECTION("Network"),
540 {"host", OPT_HOST, 's', "Use -connect instead"},
541 {"port", OPT_PORT, 'p', "Use -connect instead"},
542 {"connect", OPT_CONNECT, 's',
543 "TCP/IP where to connect; default: " PORT ")"},
544 {"bind", OPT_BIND, 's', "bind local address for connection"},
545 {"proxy", OPT_PROXY, 's',
546 "Connect to via specified proxy to the real server"},
547 {"proxy_user", OPT_PROXY_USER, 's', "UserID for proxy authentication"},
548 {"proxy_pass", OPT_PROXY_PASS, 's', "Proxy authentication password source"},
549 #ifdef AF_UNIX
550 {"unix", OPT_UNIX, 's', "Connect over the specified Unix-domain socket"},
551 #endif
552 {"4", OPT_4, '-', "Use IPv4 only"},
553 #ifdef AF_INET6
554 {"6", OPT_6, '-', "Use IPv6 only"},
555 #endif
556 {"maxfraglen", OPT_MAXFRAGLEN, 'p',
557 "Enable Maximum Fragment Length Negotiation (len values: 512, 1024, 2048 and 4096)"},
558 {"max_send_frag", OPT_MAX_SEND_FRAG, 'p', "Maximum Size of send frames "},
559 {"split_send_frag", OPT_SPLIT_SEND_FRAG, 'p',
560 "Size used to split data for encrypt pipelines"},
561 {"max_pipelines", OPT_MAX_PIPELINES, 'p',
562 "Maximum number of encrypt/decrypt pipelines to be used"},
563 {"read_buf", OPT_READ_BUF, 'p',
564 "Default read buffer size to be used for connections"},
565 {"fallback_scsv", OPT_FALLBACKSCSV, '-', "Send the fallback SCSV"},
566
567 OPT_SECTION("Identity"),
568 {"cert", OPT_CERT, '<', "Client certificate file to use"},
569 {"certform", OPT_CERTFORM, 'F',
570 "Client certificate file format (PEM/DER/P12); has no effect"},
571 {"cert_chain", OPT_CERT_CHAIN, '<',
572 "Client certificate chain file (in PEM format)"},
573 {"build_chain", OPT_BUILD_CHAIN, '-', "Build client certificate chain"},
574 {"key", OPT_KEY, 's', "Private key file to use; default: -cert file"},
575 {"keyform", OPT_KEYFORM, 'E', "Key format (ENGINE, other values ignored)"},
576 {"pass", OPT_PASS, 's', "Private key and cert file pass phrase source"},
577 {"verify", OPT_VERIFY, 'p', "Turn on peer certificate verification"},
578 {"nameopt", OPT_NAMEOPT, 's', "Certificate subject/issuer name printing options"},
579 {"CApath", OPT_CAPATH, '/', "PEM format directory of CA's"},
580 {"CAfile", OPT_CAFILE, '<', "PEM format file of CA's"},
581 {"CAstore", OPT_CASTORE, ':', "URI to store of CA's"},
582 {"no-CAfile", OPT_NOCAFILE, '-',
583 "Do not load the default certificates file"},
584 {"no-CApath", OPT_NOCAPATH, '-',
585 "Do not load certificates from the default certificates directory"},
586 {"no-CAstore", OPT_NOCASTORE, '-',
587 "Do not load certificates from the default certificates store"},
588 {"requestCAfile", OPT_REQCAFILE, '<',
589 "PEM format file of CA names to send to the server"},
590 #if defined(TCP_FASTOPEN) && !defined(OPENSSL_NO_TFO)
591 {"tfo", OPT_TFO, '-', "Connect using TCP Fast Open"},
592 #endif
593 {"dane_tlsa_domain", OPT_DANE_TLSA_DOMAIN, 's', "DANE TLSA base domain"},
594 {"dane_tlsa_rrdata", OPT_DANE_TLSA_RRDATA, 's',
595 "DANE TLSA rrdata presentation form"},
596 {"dane_ee_no_namechecks", OPT_DANE_EE_NO_NAME, '-',
597 "Disable name checks when matching DANE-EE(3) TLSA records"},
598 {"psk_identity", OPT_PSK_IDENTITY, 's', "PSK identity"},
599 {"psk", OPT_PSK, 's', "PSK in hex (without 0x)"},
600 {"psk_session", OPT_PSK_SESS, '<', "File to read PSK SSL session from"},
601 {"name", OPT_PROTOHOST, 's',
602 "Hostname to use for \"-starttls lmtp\", \"-starttls smtp\" or \"-starttls xmpp[-server]\""},
603
604 OPT_SECTION("Session"),
605 {"reconnect", OPT_RECONNECT, '-',
606 "Drop and re-make the connection with the same Session-ID"},
607 {"sess_out", OPT_SESS_OUT, '>', "File to write SSL session to"},
608 {"sess_in", OPT_SESS_IN, '<', "File to read SSL session from"},
609
610 OPT_SECTION("Input/Output"),
611 {"crlf", OPT_CRLF, '-', "Convert LF from terminal into CRLF"},
612 {"quiet", OPT_QUIET, '-', "No s_client output"},
613 {"ign_eof", OPT_IGN_EOF, '-', "Ignore input eof (default when -quiet)"},
614 {"no_ign_eof", OPT_NO_IGN_EOF, '-', "Don't ignore input eof"},
615 {"starttls", OPT_STARTTLS, 's',
616 "Use the appropriate STARTTLS command before starting TLS"},
617 {"xmpphost", OPT_XMPPHOST, 's',
618 "Alias of -name option for \"-starttls xmpp[-server]\""},
619 {"brief", OPT_BRIEF, '-',
620 "Restrict output to brief summary of connection parameters"},
621 {"prexit", OPT_PREXIT, '-',
622 "Print session information when the program exits"},
623 {"no-interactive", OPT_NO_INTERACTIVE, '-',
624 "Don't run the client in the interactive mode"},
625
626 OPT_SECTION("Debug"),
627 {"showcerts", OPT_SHOWCERTS, '-',
628 "Show all certificates sent by the server"},
629 {"debug", OPT_DEBUG, '-', "Extra output"},
630 {"msg", OPT_MSG, '-', "Show protocol messages"},
631 {"msgfile", OPT_MSGFILE, '>',
632 "File to send output of -msg or -trace, instead of stdout"},
633 {"nbio_test", OPT_NBIO_TEST, '-', "More ssl protocol testing"},
634 {"state", OPT_STATE, '-', "Print the ssl states"},
635 {"keymatexport", OPT_KEYMATEXPORT, 's',
636 "Export keying material using label"},
637 {"keymatexportlen", OPT_KEYMATEXPORTLEN, 'p',
638 "Export len bytes of keying material; default 20"},
639 {"security_debug", OPT_SECURITY_DEBUG, '-',
640 "Enable security debug messages"},
641 {"security_debug_verbose", OPT_SECURITY_DEBUG_VERBOSE, '-',
642 "Output more security debug output"},
643 #ifndef OPENSSL_NO_SSL_TRACE
644 {"trace", OPT_TRACE, '-', "Show trace output of protocol messages"},
645 #endif
646 #ifdef WATT32
647 {"wdebug", OPT_WDEBUG, '-', "WATT-32 tcp debugging"},
648 #endif
649 {"keylogfile", OPT_KEYLOG_FILE, '>', "Write TLS secrets to file"},
650 {"nocommands", OPT_NOCMDS, '-', "Do not use interactive command letters"},
651 {"adv", OPT_ADV, '-', "Advanced command mode"},
652 {"servername", OPT_SERVERNAME, 's',
653 "Set TLS extension servername (SNI) in ClientHello (default)"},
654 {"noservername", OPT_NOSERVERNAME, '-',
655 "Do not send the server name (SNI) extension in the ClientHello"},
656 {"tlsextdebug", OPT_TLSEXTDEBUG, '-',
657 "Hex dump of all TLS extensions received"},
658 {"ignore_unexpected_eof", OPT_IGNORE_UNEXPECTED_EOF, '-',
659 "Do not treat lack of close_notify from a peer as an error"},
660 #ifndef OPENSSL_NO_OCSP
661 {"status", OPT_STATUS, '-', "Request certificate status from server"},
662 #endif
663 {"serverinfo", OPT_SERVERINFO, 's',
664 "types Send empty ClientHello extensions (comma-separated numbers)"},
665 {"alpn", OPT_ALPN, 's',
666 "Enable ALPN extension, considering named protocols supported (comma-separated list)"},
667 {"async", OPT_ASYNC, '-', "Support asynchronous operation"},
668 {"nbio", OPT_NBIO, '-', "Use non-blocking IO"},
669
670 OPT_SECTION("Protocol and version"),
671 #ifndef OPENSSL_NO_SSL3
672 {"ssl3", OPT_SSL3, '-', "Just use SSLv3"},
673 #endif
674 #ifndef OPENSSL_NO_TLS1
675 {"tls1", OPT_TLS1, '-', "Just use TLSv1"},
676 #endif
677 #ifndef OPENSSL_NO_TLS1_1
678 {"tls1_1", OPT_TLS1_1, '-', "Just use TLSv1.1"},
679 #endif
680 #ifndef OPENSSL_NO_TLS1_2
681 {"tls1_2", OPT_TLS1_2, '-', "Just use TLSv1.2"},
682 #endif
683 #ifndef OPENSSL_NO_TLS1_3
684 {"tls1_3", OPT_TLS1_3, '-', "Just use TLSv1.3"},
685 #endif
686 #ifndef OPENSSL_NO_DTLS
687 {"dtls", OPT_DTLS, '-', "Use any version of DTLS"},
688 {"quic", OPT_QUIC, '-', "Use QUIC"},
689 {"timeout", OPT_TIMEOUT, '-',
690 "Enable send/receive timeout on DTLS connections"},
691 {"mtu", OPT_MTU, 'p', "Set the link layer MTU"},
692 #endif
693 #ifndef OPENSSL_NO_DTLS1
694 {"dtls1", OPT_DTLS1, '-', "Just use DTLSv1"},
695 #endif
696 #ifndef OPENSSL_NO_DTLS1_2
697 {"dtls1_2", OPT_DTLS1_2, '-', "Just use DTLSv1.2"},
698 #endif
699 #ifndef OPENSSL_NO_SCTP
700 {"sctp", OPT_SCTP, '-', "Use SCTP"},
701 {"sctp_label_bug", OPT_SCTP_LABEL_BUG, '-', "Enable SCTP label length bug"},
702 #endif
703 #ifndef OPENSSL_NO_NEXTPROTONEG
704 {"nextprotoneg", OPT_NEXTPROTONEG, 's',
705 "Enable NPN extension, considering named protocols supported (comma-separated list)"},
706 #endif
707 {"early_data", OPT_EARLY_DATA, '<', "File to send as early data"},
708 {"enable_pha", OPT_ENABLE_PHA, '-', "Enable post-handshake-authentication"},
709 {"enable_server_rpk", OPT_ENABLE_SERVER_RPK, '-', "Enable raw public keys (RFC7250) from the server"},
710 {"enable_client_rpk", OPT_ENABLE_CLIENT_RPK, '-', "Enable raw public keys (RFC7250) from the client"},
711 #ifndef OPENSSL_NO_SRTP
712 {"use_srtp", OPT_USE_SRTP, 's',
713 "Offer SRTP key management with a colon-separated profile list"},
714 #endif
715 #ifndef OPENSSL_NO_SRP
716 {"srpuser", OPT_SRPUSER, 's', "(deprecated) SRP authentication for 'user'"},
717 {"srppass", OPT_SRPPASS, 's', "(deprecated) Password for 'user'"},
718 {"srp_lateuser", OPT_SRP_LATEUSER, '-',
719 "(deprecated) SRP username into second ClientHello message"},
720 {"srp_moregroups", OPT_SRP_MOREGROUPS, '-',
721 "(deprecated) Tolerate other than the known g N values."},
722 {"srp_strength", OPT_SRP_STRENGTH, 'p',
723 "(deprecated) Minimal length in bits for N"},
724 #endif
725 #ifndef OPENSSL_NO_KTLS
726 {"ktls", OPT_KTLS, '-', "Enable Kernel TLS for sending and receiving"},
727 #endif
728
729 OPT_R_OPTIONS,
730 OPT_S_OPTIONS,
731 OPT_V_OPTIONS,
732 {"CRL", OPT_CRL, '<', "CRL file to use"},
733 {"crl_download", OPT_CRL_DOWNLOAD, '-', "Download CRL from distribution points"},
734 {"CRLform", OPT_CRLFORM, 'F', "CRL format (PEM or DER); default PEM"},
735 {"verify_return_error", OPT_VERIFY_RET_ERROR, '-',
736 "Close connection on verification error"},
737 {"verify_quiet", OPT_VERIFY_QUIET, '-', "Restrict verify output to errors"},
738 {"chainCAfile", OPT_CHAINCAFILE, '<',
739 "CA file for certificate chain (PEM format)"},
740 {"chainCApath", OPT_CHAINCAPATH, '/',
741 "Use dir as certificate store path to build CA certificate chain"},
742 {"chainCAstore", OPT_CHAINCASTORE, ':',
743 "CA store URI for certificate chain"},
744 {"verifyCAfile", OPT_VERIFYCAFILE, '<',
745 "CA file for certificate verification (PEM format)"},
746 {"verifyCApath", OPT_VERIFYCAPATH, '/',
747 "Use dir as certificate store path to verify CA certificate"},
748 {"verifyCAstore", OPT_VERIFYCASTORE, ':',
749 "CA store URI for certificate verification"},
750 OPT_X_OPTIONS,
751 OPT_PROV_OPTIONS,
752
753 OPT_PARAMETERS(),
754 {"host:port", 0, 0, "Where to connect; same as -connect option"},
755 {NULL}
756 };
757
758 typedef enum PROTOCOL_choice {
759 PROTO_OFF,
760 PROTO_SMTP,
761 PROTO_POP3,
762 PROTO_IMAP,
763 PROTO_FTP,
764 PROTO_TELNET,
765 PROTO_XMPP,
766 PROTO_XMPP_SERVER,
767 PROTO_IRC,
768 PROTO_MYSQL,
769 PROTO_POSTGRES,
770 PROTO_LMTP,
771 PROTO_NNTP,
772 PROTO_SIEVE,
773 PROTO_LDAP
774 } PROTOCOL_CHOICE;
775
776 static const OPT_PAIR services[] = {
777 {"smtp", PROTO_SMTP},
778 {"pop3", PROTO_POP3},
779 {"imap", PROTO_IMAP},
780 {"ftp", PROTO_FTP},
781 {"xmpp", PROTO_XMPP},
782 {"xmpp-server", PROTO_XMPP_SERVER},
783 {"telnet", PROTO_TELNET},
784 {"irc", PROTO_IRC},
785 {"mysql", PROTO_MYSQL},
786 {"postgres", PROTO_POSTGRES},
787 {"lmtp", PROTO_LMTP},
788 {"nntp", PROTO_NNTP},
789 {"sieve", PROTO_SIEVE},
790 {"ldap", PROTO_LDAP},
791 {NULL, 0}
792 };
793
794 #define IS_INET_FLAG(o) \
795 (o == OPT_4 || o == OPT_6 || o == OPT_HOST || o == OPT_PORT || o == OPT_CONNECT)
796 #define IS_UNIX_FLAG(o) (o == OPT_UNIX)
797
798 #define IS_PROT_FLAG(o) \
799 (o == OPT_SSL3 || o == OPT_TLS1 || o == OPT_TLS1_1 || o == OPT_TLS1_2 \
800 || o == OPT_TLS1_3 || o == OPT_DTLS || o == OPT_DTLS1 || o == OPT_DTLS1_2 \
801 || o == OPT_QUIC)
802
803 /* Free |*dest| and optionally set it to a copy of |source|. */
freeandcopy(char ** dest,const char * source)804 static void freeandcopy(char **dest, const char *source)
805 {
806 OPENSSL_free(*dest);
807 *dest = NULL;
808 if (source != NULL)
809 *dest = OPENSSL_strdup(source);
810 }
811
new_session_cb(SSL * s,SSL_SESSION * sess)812 static int new_session_cb(SSL *s, SSL_SESSION *sess)
813 {
814
815 if (sess_out != NULL) {
816 BIO *stmp = BIO_new_file(sess_out, "w");
817
818 if (stmp == NULL) {
819 BIO_printf(bio_err, "Error writing session file %s\n", sess_out);
820 } else {
821 PEM_write_bio_SSL_SESSION(stmp, sess);
822 BIO_free(stmp);
823 }
824 }
825
826 /*
827 * Session data gets dumped on connection for TLSv1.2 and below, and on
828 * arrival of the NewSessionTicket for TLSv1.3.
829 */
830 if (SSL_version(s) == TLS1_3_VERSION) {
831 BIO_printf(bio_c_out,
832 "---\nPost-Handshake New Session Ticket arrived:\n");
833 SSL_SESSION_print(bio_c_out, sess);
834 BIO_printf(bio_c_out, "---\n");
835 }
836
837 /*
838 * We always return a "fail" response so that the session gets freed again
839 * because we haven't used the reference.
840 */
841 return 0;
842 }
843
s_client_main(int argc,char ** argv)844 int s_client_main(int argc, char **argv)
845 {
846 BIO *sbio;
847 EVP_PKEY *key = NULL;
848 SSL *con = NULL;
849 SSL_CTX *ctx = NULL;
850 STACK_OF(X509) *chain = NULL;
851 X509 *cert = NULL;
852 X509_VERIFY_PARAM *vpm = NULL;
853 SSL_EXCERT *exc = NULL;
854 SSL_CONF_CTX *cctx = NULL;
855 STACK_OF(OPENSSL_STRING) *ssl_args = NULL;
856 char *dane_tlsa_domain = NULL;
857 STACK_OF(OPENSSL_STRING) *dane_tlsa_rrset = NULL;
858 int dane_ee_no_name = 0;
859 STACK_OF(X509_CRL) *crls = NULL;
860 const SSL_METHOD *meth = TLS_client_method();
861 const char *CApath = NULL, *CAfile = NULL, *CAstore = NULL;
862 char *cbuf = NULL, *sbuf = NULL, *mbuf = NULL;
863 char *proxystr = NULL, *proxyuser = NULL;
864 char *proxypassarg = NULL, *proxypass = NULL;
865 char *connectstr = NULL, *bindstr = NULL;
866 char *cert_file = NULL, *key_file = NULL, *chain_file = NULL;
867 char *chCApath = NULL, *chCAfile = NULL, *chCAstore = NULL, *host = NULL;
868 char *thost = NULL, *tport = NULL;
869 char *port = NULL;
870 char *bindhost = NULL, *bindport = NULL;
871 char *passarg = NULL, *pass = NULL;
872 char *vfyCApath = NULL, *vfyCAfile = NULL, *vfyCAstore = NULL;
873 char *ReqCAfile = NULL;
874 char *sess_in = NULL, *crl_file = NULL, *p;
875 const char *protohost = NULL;
876 struct timeval timeout, *timeoutp;
877 fd_set readfds, writefds;
878 int noCApath = 0, noCAfile = 0, noCAstore = 0;
879 int build_chain = 0, cert_format = FORMAT_UNDEF;
880 size_t cbuf_len, cbuf_off;
881 int key_format = FORMAT_UNDEF, crlf = 0, full_log = 1, mbuf_len = 0;
882 int prexit = 0;
883 int nointeractive = 0;
884 int sdebug = 0;
885 int reconnect = 0, verify = SSL_VERIFY_NONE, vpmtouched = 0;
886 int ret = 1, in_init = 1, i, nbio_test = 0, sock = -1, k, width, state = 0;
887 int sbuf_len, sbuf_off, cmdmode = USER_DATA_MODE_BASIC;
888 int socket_family = AF_UNSPEC, socket_type = SOCK_STREAM, protocol = 0;
889 int starttls_proto = PROTO_OFF, crl_format = FORMAT_UNDEF, crl_download = 0;
890 int write_tty, read_tty, write_ssl, read_ssl, tty_on, ssl_pending;
891 int first_loop;
892 #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS)
893 int at_eof = 0;
894 #endif
895 int read_buf_len = 0;
896 int fallback_scsv = 0;
897 OPTION_CHOICE o;
898 #ifndef OPENSSL_NO_DTLS
899 int enable_timeouts = 0;
900 long socket_mtu = 0;
901 #endif
902 #ifndef OPENSSL_NO_ENGINE
903 ENGINE *ssl_client_engine = NULL;
904 #endif
905 ENGINE *e = NULL;
906 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
907 struct timeval tv;
908 #endif
909 const char *servername = NULL;
910 char *sname_alloc = NULL;
911 int noservername = 0;
912 const char *alpn_in = NULL;
913 tlsextctx tlsextcbp = { NULL, 0 };
914 const char *ssl_config = NULL;
915 #define MAX_SI_TYPES 100
916 unsigned short serverinfo_types[MAX_SI_TYPES];
917 int serverinfo_count = 0, start = 0, len;
918 #ifndef OPENSSL_NO_NEXTPROTONEG
919 const char *next_proto_neg_in = NULL;
920 #endif
921 #ifndef OPENSSL_NO_SRP
922 char *srppass = NULL;
923 int srp_lateuser = 0;
924 SRP_ARG srp_arg = { NULL, NULL, 0, 0, 0, 1024 };
925 #endif
926 #ifndef OPENSSL_NO_SRTP
927 char *srtp_profiles = NULL;
928 #endif
929 #ifndef OPENSSL_NO_CT
930 char *ctlog_file = NULL;
931 int ct_validation = 0;
932 #endif
933 int min_version = 0, max_version = 0, prot_opt = 0, no_prot_opt = 0;
934 int async = 0;
935 unsigned int max_send_fragment = 0;
936 unsigned int split_send_fragment = 0, max_pipelines = 0;
937 enum { use_inet, use_unix, use_unknown } connect_type = use_unknown;
938 int count4or6 = 0;
939 uint8_t maxfraglen = 0;
940 int c_nbio = 0, c_msg = 0, c_ign_eof = 0, c_brief = 0;
941 int c_tlsextdebug = 0;
942 #ifndef OPENSSL_NO_OCSP
943 int c_status_req = 0;
944 #endif
945 BIO *bio_c_msg = NULL;
946 const char *keylog_file = NULL, *early_data_file = NULL;
947 int isdtls = 0, isquic = 0;
948 char *psksessf = NULL;
949 int enable_pha = 0;
950 int enable_client_rpk = 0;
951 #ifndef OPENSSL_NO_SCTP
952 int sctp_label_bug = 0;
953 #endif
954 int ignore_unexpected_eof = 0;
955 #ifndef OPENSSL_NO_KTLS
956 int enable_ktls = 0;
957 #endif
958 int tfo = 0;
959 int is_infinite;
960 BIO_ADDR *peer_addr = NULL;
961 struct user_data_st user_data;
962
963 FD_ZERO(&readfds);
964 FD_ZERO(&writefds);
965 /* Known false-positive of MemorySanitizer. */
966 #if defined(__has_feature)
967 # if __has_feature(memory_sanitizer)
968 __msan_unpoison(&readfds, sizeof(readfds));
969 __msan_unpoison(&writefds, sizeof(writefds));
970 # endif
971 #endif
972
973 c_quiet = 0;
974 c_debug = 0;
975 c_showcerts = 0;
976 c_nbio = 0;
977 port = OPENSSL_strdup(PORT);
978 vpm = X509_VERIFY_PARAM_new();
979 cctx = SSL_CONF_CTX_new();
980
981 if (port == NULL || vpm == NULL || cctx == NULL) {
982 BIO_printf(bio_err, "%s: out of memory\n", opt_getprog());
983 goto end;
984 }
985
986 cbuf = app_malloc(BUFSIZZ, "cbuf");
987 sbuf = app_malloc(BUFSIZZ, "sbuf");
988 mbuf = app_malloc(BUFSIZZ, "mbuf");
989
990 SSL_CONF_CTX_set_flags(cctx, SSL_CONF_FLAG_CLIENT | SSL_CONF_FLAG_CMDLINE);
991
992 prog = opt_init(argc, argv, s_client_options);
993 while ((o = opt_next()) != OPT_EOF) {
994 /* Check for intermixing flags. */
995 if (connect_type == use_unix && IS_INET_FLAG(o)) {
996 BIO_printf(bio_err,
997 "%s: Intermixed protocol flags (unix and internet domains)\n",
998 prog);
999 goto end;
1000 }
1001 if (connect_type == use_inet && IS_UNIX_FLAG(o)) {
1002 BIO_printf(bio_err,
1003 "%s: Intermixed protocol flags (internet and unix domains)\n",
1004 prog);
1005 goto end;
1006 }
1007
1008 if (IS_PROT_FLAG(o) && ++prot_opt > 1) {
1009 BIO_printf(bio_err, "Cannot supply multiple protocol flags\n");
1010 goto end;
1011 }
1012 if (IS_NO_PROT_FLAG(o))
1013 no_prot_opt++;
1014 if (prot_opt == 1 && no_prot_opt) {
1015 BIO_printf(bio_err,
1016 "Cannot supply both a protocol flag and '-no_<prot>'\n");
1017 goto end;
1018 }
1019
1020 switch (o) {
1021 case OPT_EOF:
1022 case OPT_ERR:
1023 opthelp:
1024 BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
1025 goto end;
1026 case OPT_HELP:
1027 opt_help(s_client_options);
1028 ret = 0;
1029 goto end;
1030 case OPT_4:
1031 connect_type = use_inet;
1032 socket_family = AF_INET;
1033 count4or6++;
1034 break;
1035 #ifdef AF_INET6
1036 case OPT_6:
1037 connect_type = use_inet;
1038 socket_family = AF_INET6;
1039 count4or6++;
1040 break;
1041 #endif
1042 case OPT_HOST:
1043 connect_type = use_inet;
1044 freeandcopy(&host, opt_arg());
1045 break;
1046 case OPT_PORT:
1047 connect_type = use_inet;
1048 freeandcopy(&port, opt_arg());
1049 break;
1050 case OPT_CONNECT:
1051 connect_type = use_inet;
1052 freeandcopy(&connectstr, opt_arg());
1053 break;
1054 case OPT_BIND:
1055 freeandcopy(&bindstr, opt_arg());
1056 break;
1057 case OPT_PROXY:
1058 proxystr = opt_arg();
1059 break;
1060 case OPT_PROXY_USER:
1061 proxyuser = opt_arg();
1062 break;
1063 case OPT_PROXY_PASS:
1064 proxypassarg = opt_arg();
1065 break;
1066 #ifdef AF_UNIX
1067 case OPT_UNIX:
1068 connect_type = use_unix;
1069 socket_family = AF_UNIX;
1070 freeandcopy(&host, opt_arg());
1071 break;
1072 #endif
1073 case OPT_XMPPHOST:
1074 /* fall through, since this is an alias */
1075 case OPT_PROTOHOST:
1076 protohost = opt_arg();
1077 break;
1078 case OPT_VERIFY:
1079 verify = SSL_VERIFY_PEER;
1080 verify_args.depth = atoi(opt_arg());
1081 if (!c_quiet)
1082 BIO_printf(bio_err, "verify depth is %d\n", verify_args.depth);
1083 break;
1084 case OPT_CERT:
1085 cert_file = opt_arg();
1086 break;
1087 case OPT_NAMEOPT:
1088 if (!set_nameopt(opt_arg()))
1089 goto end;
1090 break;
1091 case OPT_CRL:
1092 crl_file = opt_arg();
1093 break;
1094 case OPT_CRL_DOWNLOAD:
1095 crl_download = 1;
1096 break;
1097 case OPT_SESS_OUT:
1098 sess_out = opt_arg();
1099 break;
1100 case OPT_SESS_IN:
1101 sess_in = opt_arg();
1102 break;
1103 case OPT_CERTFORM:
1104 if (!opt_format(opt_arg(), OPT_FMT_ANY, &cert_format))
1105 goto opthelp;
1106 break;
1107 case OPT_CRLFORM:
1108 if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &crl_format))
1109 goto opthelp;
1110 break;
1111 case OPT_VERIFY_RET_ERROR:
1112 verify = SSL_VERIFY_PEER;
1113 verify_args.return_error = 1;
1114 break;
1115 case OPT_VERIFY_QUIET:
1116 verify_args.quiet = 1;
1117 break;
1118 case OPT_BRIEF:
1119 c_brief = verify_args.quiet = c_quiet = 1;
1120 break;
1121 case OPT_S_CASES:
1122 if (ssl_args == NULL)
1123 ssl_args = sk_OPENSSL_STRING_new_null();
1124 if (ssl_args == NULL
1125 || !sk_OPENSSL_STRING_push(ssl_args, opt_flag())
1126 || !sk_OPENSSL_STRING_push(ssl_args, opt_arg())) {
1127 BIO_printf(bio_err, "%s: Memory allocation failure\n", prog);
1128 goto end;
1129 }
1130 break;
1131 case OPT_V_CASES:
1132 if (!opt_verify(o, vpm))
1133 goto end;
1134 vpmtouched++;
1135 break;
1136 case OPT_X_CASES:
1137 if (!args_excert(o, &exc))
1138 goto end;
1139 break;
1140 case OPT_IGNORE_UNEXPECTED_EOF:
1141 ignore_unexpected_eof = 1;
1142 break;
1143 case OPT_PREXIT:
1144 prexit = 1;
1145 break;
1146 case OPT_NO_INTERACTIVE:
1147 nointeractive = 1;
1148 break;
1149 case OPT_CRLF:
1150 crlf = 1;
1151 break;
1152 case OPT_QUIET:
1153 c_quiet = c_ign_eof = 1;
1154 break;
1155 case OPT_NBIO:
1156 c_nbio = 1;
1157 break;
1158 case OPT_NOCMDS:
1159 cmdmode = USER_DATA_MODE_NONE;
1160 break;
1161 case OPT_ADV:
1162 cmdmode = USER_DATA_MODE_ADVANCED;
1163 break;
1164 case OPT_ENGINE:
1165 e = setup_engine(opt_arg(), 1);
1166 break;
1167 case OPT_SSL_CLIENT_ENGINE:
1168 #ifndef OPENSSL_NO_ENGINE
1169 ssl_client_engine = setup_engine(opt_arg(), 0);
1170 if (ssl_client_engine == NULL) {
1171 BIO_printf(bio_err, "Error getting client auth engine\n");
1172 goto opthelp;
1173 }
1174 #endif
1175 break;
1176 case OPT_R_CASES:
1177 if (!opt_rand(o))
1178 goto end;
1179 break;
1180 case OPT_PROV_CASES:
1181 if (!opt_provider(o))
1182 goto end;
1183 break;
1184 case OPT_IGN_EOF:
1185 c_ign_eof = 1;
1186 break;
1187 case OPT_NO_IGN_EOF:
1188 c_ign_eof = 0;
1189 break;
1190 case OPT_DEBUG:
1191 c_debug = 1;
1192 break;
1193 case OPT_TLSEXTDEBUG:
1194 c_tlsextdebug = 1;
1195 break;
1196 case OPT_STATUS:
1197 #ifndef OPENSSL_NO_OCSP
1198 c_status_req = 1;
1199 #endif
1200 break;
1201 case OPT_WDEBUG:
1202 #ifdef WATT32
1203 dbug_init();
1204 #endif
1205 break;
1206 case OPT_MSG:
1207 c_msg = 1;
1208 break;
1209 case OPT_MSGFILE:
1210 bio_c_msg = BIO_new_file(opt_arg(), "w");
1211 if (bio_c_msg == NULL) {
1212 BIO_printf(bio_err, "Error writing file %s\n", opt_arg());
1213 goto end;
1214 }
1215 break;
1216 case OPT_TRACE:
1217 #ifndef OPENSSL_NO_SSL_TRACE
1218 c_msg = 2;
1219 #endif
1220 break;
1221 case OPT_SECURITY_DEBUG:
1222 sdebug = 1;
1223 break;
1224 case OPT_SECURITY_DEBUG_VERBOSE:
1225 sdebug = 2;
1226 break;
1227 case OPT_SHOWCERTS:
1228 c_showcerts = 1;
1229 break;
1230 case OPT_NBIO_TEST:
1231 nbio_test = 1;
1232 break;
1233 case OPT_STATE:
1234 state = 1;
1235 break;
1236 case OPT_PSK_IDENTITY:
1237 psk_identity = opt_arg();
1238 break;
1239 case OPT_PSK:
1240 for (p = psk_key = opt_arg(); *p; p++) {
1241 if (isxdigit(_UC(*p)))
1242 continue;
1243 BIO_printf(bio_err, "Not a hex number '%s'\n", psk_key);
1244 goto end;
1245 }
1246 break;
1247 case OPT_PSK_SESS:
1248 psksessf = opt_arg();
1249 break;
1250 #ifndef OPENSSL_NO_SRP
1251 case OPT_SRPUSER:
1252 srp_arg.srplogin = opt_arg();
1253 if (min_version < TLS1_VERSION)
1254 min_version = TLS1_VERSION;
1255 break;
1256 case OPT_SRPPASS:
1257 srppass = opt_arg();
1258 if (min_version < TLS1_VERSION)
1259 min_version = TLS1_VERSION;
1260 break;
1261 case OPT_SRP_STRENGTH:
1262 srp_arg.strength = atoi(opt_arg());
1263 BIO_printf(bio_err, "SRP minimal length for N is %d\n",
1264 srp_arg.strength);
1265 if (min_version < TLS1_VERSION)
1266 min_version = TLS1_VERSION;
1267 break;
1268 case OPT_SRP_LATEUSER:
1269 srp_lateuser = 1;
1270 if (min_version < TLS1_VERSION)
1271 min_version = TLS1_VERSION;
1272 break;
1273 case OPT_SRP_MOREGROUPS:
1274 srp_arg.amp = 1;
1275 if (min_version < TLS1_VERSION)
1276 min_version = TLS1_VERSION;
1277 break;
1278 #endif
1279 case OPT_SSL_CONFIG:
1280 ssl_config = opt_arg();
1281 break;
1282 case OPT_SSL3:
1283 min_version = SSL3_VERSION;
1284 max_version = SSL3_VERSION;
1285 socket_type = SOCK_STREAM;
1286 #ifndef OPENSSL_NO_DTLS
1287 isdtls = 0;
1288 #endif
1289 isquic = 0;
1290 break;
1291 case OPT_TLS1_3:
1292 min_version = TLS1_3_VERSION;
1293 max_version = TLS1_3_VERSION;
1294 socket_type = SOCK_STREAM;
1295 #ifndef OPENSSL_NO_DTLS
1296 isdtls = 0;
1297 #endif
1298 isquic = 0;
1299 break;
1300 case OPT_TLS1_2:
1301 min_version = TLS1_2_VERSION;
1302 max_version = TLS1_2_VERSION;
1303 socket_type = SOCK_STREAM;
1304 #ifndef OPENSSL_NO_DTLS
1305 isdtls = 0;
1306 #endif
1307 isquic = 0;
1308 break;
1309 case OPT_TLS1_1:
1310 min_version = TLS1_1_VERSION;
1311 max_version = TLS1_1_VERSION;
1312 socket_type = SOCK_STREAM;
1313 #ifndef OPENSSL_NO_DTLS
1314 isdtls = 0;
1315 #endif
1316 isquic = 0;
1317 break;
1318 case OPT_TLS1:
1319 min_version = TLS1_VERSION;
1320 max_version = TLS1_VERSION;
1321 socket_type = SOCK_STREAM;
1322 #ifndef OPENSSL_NO_DTLS
1323 isdtls = 0;
1324 #endif
1325 isquic = 0;
1326 break;
1327 case OPT_DTLS:
1328 #ifndef OPENSSL_NO_DTLS
1329 meth = DTLS_client_method();
1330 socket_type = SOCK_DGRAM;
1331 isdtls = 1;
1332 isquic = 0;
1333 #endif
1334 break;
1335 case OPT_DTLS1:
1336 #ifndef OPENSSL_NO_DTLS1
1337 meth = DTLS_client_method();
1338 min_version = DTLS1_VERSION;
1339 max_version = DTLS1_VERSION;
1340 socket_type = SOCK_DGRAM;
1341 isdtls = 1;
1342 isquic = 0;
1343 #endif
1344 break;
1345 case OPT_DTLS1_2:
1346 #ifndef OPENSSL_NO_DTLS1_2
1347 meth = DTLS_client_method();
1348 min_version = DTLS1_2_VERSION;
1349 max_version = DTLS1_2_VERSION;
1350 socket_type = SOCK_DGRAM;
1351 isdtls = 1;
1352 isquic = 0;
1353 #endif
1354 break;
1355 case OPT_QUIC:
1356 #ifndef OPENSSL_NO_QUIC
1357 meth = OSSL_QUIC_client_method();
1358 min_version = 0;
1359 max_version = 0;
1360 socket_type = SOCK_DGRAM;
1361 # ifndef OPENSSL_NO_DTLS
1362 isdtls = 0;
1363 # endif
1364 isquic = 1;
1365 #endif
1366 break;
1367 case OPT_SCTP:
1368 #ifndef OPENSSL_NO_SCTP
1369 protocol = IPPROTO_SCTP;
1370 #endif
1371 break;
1372 case OPT_SCTP_LABEL_BUG:
1373 #ifndef OPENSSL_NO_SCTP
1374 sctp_label_bug = 1;
1375 #endif
1376 break;
1377 case OPT_TIMEOUT:
1378 #ifndef OPENSSL_NO_DTLS
1379 enable_timeouts = 1;
1380 #endif
1381 break;
1382 case OPT_MTU:
1383 #ifndef OPENSSL_NO_DTLS
1384 socket_mtu = atol(opt_arg());
1385 #endif
1386 break;
1387 case OPT_FALLBACKSCSV:
1388 fallback_scsv = 1;
1389 break;
1390 case OPT_KEYFORM:
1391 if (!opt_format(opt_arg(), OPT_FMT_ANY, &key_format))
1392 goto opthelp;
1393 break;
1394 case OPT_PASS:
1395 passarg = opt_arg();
1396 break;
1397 case OPT_CERT_CHAIN:
1398 chain_file = opt_arg();
1399 break;
1400 case OPT_KEY:
1401 key_file = opt_arg();
1402 break;
1403 case OPT_RECONNECT:
1404 reconnect = 5;
1405 break;
1406 case OPT_CAPATH:
1407 CApath = opt_arg();
1408 break;
1409 case OPT_NOCAPATH:
1410 noCApath = 1;
1411 break;
1412 case OPT_CHAINCAPATH:
1413 chCApath = opt_arg();
1414 break;
1415 case OPT_VERIFYCAPATH:
1416 vfyCApath = opt_arg();
1417 break;
1418 case OPT_BUILD_CHAIN:
1419 build_chain = 1;
1420 break;
1421 case OPT_REQCAFILE:
1422 ReqCAfile = opt_arg();
1423 break;
1424 case OPT_CAFILE:
1425 CAfile = opt_arg();
1426 break;
1427 case OPT_NOCAFILE:
1428 noCAfile = 1;
1429 break;
1430 #ifndef OPENSSL_NO_CT
1431 case OPT_NOCT:
1432 ct_validation = 0;
1433 break;
1434 case OPT_CT:
1435 ct_validation = 1;
1436 break;
1437 case OPT_CTLOG_FILE:
1438 ctlog_file = opt_arg();
1439 break;
1440 #endif
1441 case OPT_CHAINCAFILE:
1442 chCAfile = opt_arg();
1443 break;
1444 case OPT_VERIFYCAFILE:
1445 vfyCAfile = opt_arg();
1446 break;
1447 case OPT_CASTORE:
1448 CAstore = opt_arg();
1449 break;
1450 case OPT_NOCASTORE:
1451 noCAstore = 1;
1452 break;
1453 case OPT_CHAINCASTORE:
1454 chCAstore = opt_arg();
1455 break;
1456 case OPT_VERIFYCASTORE:
1457 vfyCAstore = opt_arg();
1458 break;
1459 case OPT_DANE_TLSA_DOMAIN:
1460 dane_tlsa_domain = opt_arg();
1461 break;
1462 case OPT_DANE_TLSA_RRDATA:
1463 if (dane_tlsa_rrset == NULL)
1464 dane_tlsa_rrset = sk_OPENSSL_STRING_new_null();
1465 if (dane_tlsa_rrset == NULL ||
1466 !sk_OPENSSL_STRING_push(dane_tlsa_rrset, opt_arg())) {
1467 BIO_printf(bio_err, "%s: Memory allocation failure\n", prog);
1468 goto end;
1469 }
1470 break;
1471 case OPT_DANE_EE_NO_NAME:
1472 dane_ee_no_name = 1;
1473 break;
1474 case OPT_NEXTPROTONEG:
1475 #ifndef OPENSSL_NO_NEXTPROTONEG
1476 next_proto_neg_in = opt_arg();
1477 #endif
1478 break;
1479 case OPT_ALPN:
1480 alpn_in = opt_arg();
1481 break;
1482 case OPT_SERVERINFO:
1483 p = opt_arg();
1484 len = strlen(p);
1485 for (start = 0, i = 0; i <= len; ++i) {
1486 if (i == len || p[i] == ',') {
1487 serverinfo_types[serverinfo_count] = atoi(p + start);
1488 if (++serverinfo_count == MAX_SI_TYPES)
1489 break;
1490 start = i + 1;
1491 }
1492 }
1493 break;
1494 case OPT_STARTTLS:
1495 if (!opt_pair(opt_arg(), services, &starttls_proto))
1496 goto end;
1497 break;
1498 case OPT_TFO:
1499 tfo = 1;
1500 break;
1501 case OPT_SERVERNAME:
1502 servername = opt_arg();
1503 break;
1504 case OPT_NOSERVERNAME:
1505 noservername = 1;
1506 break;
1507 case OPT_USE_SRTP:
1508 #ifndef OPENSSL_NO_SRTP
1509 srtp_profiles = opt_arg();
1510 #endif
1511 break;
1512 case OPT_KEYMATEXPORT:
1513 keymatexportlabel = opt_arg();
1514 break;
1515 case OPT_KEYMATEXPORTLEN:
1516 keymatexportlen = atoi(opt_arg());
1517 break;
1518 case OPT_ASYNC:
1519 async = 1;
1520 break;
1521 case OPT_MAXFRAGLEN:
1522 len = atoi(opt_arg());
1523 switch (len) {
1524 case 512:
1525 maxfraglen = TLSEXT_max_fragment_length_512;
1526 break;
1527 case 1024:
1528 maxfraglen = TLSEXT_max_fragment_length_1024;
1529 break;
1530 case 2048:
1531 maxfraglen = TLSEXT_max_fragment_length_2048;
1532 break;
1533 case 4096:
1534 maxfraglen = TLSEXT_max_fragment_length_4096;
1535 break;
1536 default:
1537 BIO_printf(bio_err,
1538 "%s: Max Fragment Len %u is out of permitted values",
1539 prog, len);
1540 goto opthelp;
1541 }
1542 break;
1543 case OPT_MAX_SEND_FRAG:
1544 max_send_fragment = atoi(opt_arg());
1545 break;
1546 case OPT_SPLIT_SEND_FRAG:
1547 split_send_fragment = atoi(opt_arg());
1548 break;
1549 case OPT_MAX_PIPELINES:
1550 max_pipelines = atoi(opt_arg());
1551 break;
1552 case OPT_READ_BUF:
1553 read_buf_len = atoi(opt_arg());
1554 break;
1555 case OPT_KEYLOG_FILE:
1556 keylog_file = opt_arg();
1557 break;
1558 case OPT_EARLY_DATA:
1559 early_data_file = opt_arg();
1560 break;
1561 case OPT_ENABLE_PHA:
1562 enable_pha = 1;
1563 break;
1564 case OPT_KTLS:
1565 #ifndef OPENSSL_NO_KTLS
1566 enable_ktls = 1;
1567 #endif
1568 break;
1569 case OPT_ENABLE_SERVER_RPK:
1570 enable_server_rpk = 1;
1571 break;
1572 case OPT_ENABLE_CLIENT_RPK:
1573 enable_client_rpk = 1;
1574 break;
1575 }
1576 }
1577
1578 /* Optional argument is connect string if -connect not used. */
1579 if (opt_num_rest() == 1) {
1580 /* Don't allow -connect and a separate argument. */
1581 if (connectstr != NULL) {
1582 BIO_printf(bio_err,
1583 "%s: cannot provide both -connect option and target parameter\n",
1584 prog);
1585 goto opthelp;
1586 }
1587 connect_type = use_inet;
1588 freeandcopy(&connectstr, *opt_rest());
1589 } else if (!opt_check_rest_arg(NULL)) {
1590 goto opthelp;
1591 }
1592 if (!app_RAND_load())
1593 goto end;
1594
1595 if (c_ign_eof)
1596 cmdmode = USER_DATA_MODE_NONE;
1597
1598 if (count4or6 >= 2) {
1599 BIO_printf(bio_err, "%s: Can't use both -4 and -6\n", prog);
1600 goto opthelp;
1601 }
1602 if (noservername) {
1603 if (servername != NULL) {
1604 BIO_printf(bio_err,
1605 "%s: Can't use -servername and -noservername together\n",
1606 prog);
1607 goto opthelp;
1608 }
1609 if (dane_tlsa_domain != NULL) {
1610 BIO_printf(bio_err,
1611 "%s: Can't use -dane_tlsa_domain and -noservername together\n",
1612 prog);
1613 goto opthelp;
1614 }
1615 }
1616
1617 #ifndef OPENSSL_NO_NEXTPROTONEG
1618 if (min_version == TLS1_3_VERSION && next_proto_neg_in != NULL) {
1619 BIO_printf(bio_err, "Cannot supply -nextprotoneg with TLSv1.3\n");
1620 goto opthelp;
1621 }
1622 #endif
1623
1624 if (connectstr != NULL) {
1625 int res;
1626 char *tmp_host = host, *tmp_port = port;
1627
1628 res = BIO_parse_hostserv(connectstr, &host, &port, BIO_PARSE_PRIO_HOST);
1629 if (tmp_host != host)
1630 OPENSSL_free(tmp_host);
1631 if (tmp_port != port)
1632 OPENSSL_free(tmp_port);
1633 if (!res) {
1634 BIO_printf(bio_err,
1635 "%s: -connect argument or target parameter malformed or ambiguous\n",
1636 prog);
1637 goto end;
1638 }
1639 }
1640
1641 if (proxystr != NULL) {
1642 #ifndef OPENSSL_NO_HTTP
1643 int res;
1644 char *tmp_host = host, *tmp_port = port;
1645
1646 if (host == NULL || port == NULL) {
1647 BIO_printf(bio_err, "%s: -proxy requires use of -connect or target parameter\n", prog);
1648 goto opthelp;
1649 }
1650
1651 if (servername == NULL && !noservername) {
1652 servername = sname_alloc = OPENSSL_strdup(host);
1653 if (sname_alloc == NULL) {
1654 BIO_printf(bio_err, "%s: out of memory\n", prog);
1655 goto end;
1656 }
1657 }
1658
1659 /* Retain the original target host:port for use in the HTTP proxy connect string */
1660 thost = OPENSSL_strdup(host);
1661 tport = OPENSSL_strdup(port);
1662 if (thost == NULL || tport == NULL) {
1663 BIO_printf(bio_err, "%s: out of memory\n", prog);
1664 goto end;
1665 }
1666
1667 res = BIO_parse_hostserv(proxystr, &host, &port, BIO_PARSE_PRIO_HOST);
1668 if (tmp_host != host)
1669 OPENSSL_free(tmp_host);
1670 if (tmp_port != port)
1671 OPENSSL_free(tmp_port);
1672 if (!res) {
1673 BIO_printf(bio_err,
1674 "%s: -proxy argument malformed or ambiguous\n", prog);
1675 goto end;
1676 }
1677 #else
1678 BIO_printf(bio_err,
1679 "%s: -proxy not supported in no-http build\n", prog);
1680 goto end;
1681 #endif
1682 }
1683
1684
1685 if (bindstr != NULL) {
1686 int res;
1687 res = BIO_parse_hostserv(bindstr, &bindhost, &bindport,
1688 BIO_PARSE_PRIO_HOST);
1689 if (!res) {
1690 BIO_printf(bio_err,
1691 "%s: -bind argument parameter malformed or ambiguous\n",
1692 prog);
1693 goto end;
1694 }
1695 }
1696
1697 #ifdef AF_UNIX
1698 if (socket_family == AF_UNIX && socket_type != SOCK_STREAM) {
1699 BIO_printf(bio_err,
1700 "Can't use unix sockets and datagrams together\n");
1701 goto end;
1702 }
1703 #endif
1704
1705 #ifndef OPENSSL_NO_SCTP
1706 if (protocol == IPPROTO_SCTP) {
1707 if (socket_type != SOCK_DGRAM) {
1708 BIO_printf(bio_err, "Can't use -sctp without DTLS\n");
1709 goto end;
1710 }
1711 /* SCTP is unusual. It uses DTLS over a SOCK_STREAM protocol */
1712 socket_type = SOCK_STREAM;
1713 }
1714 #endif
1715
1716 #if !defined(OPENSSL_NO_NEXTPROTONEG)
1717 next_proto.status = -1;
1718 if (next_proto_neg_in) {
1719 next_proto.data =
1720 next_protos_parse(&next_proto.len, next_proto_neg_in);
1721 if (next_proto.data == NULL) {
1722 BIO_printf(bio_err, "Error parsing -nextprotoneg argument\n");
1723 goto end;
1724 }
1725 } else
1726 next_proto.data = NULL;
1727 #endif
1728
1729 if (!app_passwd(passarg, NULL, &pass, NULL)) {
1730 BIO_printf(bio_err, "Error getting private key password\n");
1731 goto end;
1732 }
1733
1734 if (!app_passwd(proxypassarg, NULL, &proxypass, NULL)) {
1735 BIO_printf(bio_err, "Error getting proxy password\n");
1736 goto end;
1737 }
1738
1739 if (proxypass != NULL && proxyuser == NULL) {
1740 BIO_printf(bio_err, "Error: Must specify proxy_user with proxy_pass\n");
1741 goto end;
1742 }
1743
1744 if (key_file == NULL)
1745 key_file = cert_file;
1746
1747 if (key_file != NULL) {
1748 key = load_key(key_file, key_format, 0, pass, e,
1749 "client certificate private key");
1750 if (key == NULL)
1751 goto end;
1752 }
1753
1754 if (cert_file != NULL) {
1755 cert = load_cert_pass(cert_file, cert_format, 1, pass,
1756 "client certificate");
1757 if (cert == NULL)
1758 goto end;
1759 }
1760
1761 if (chain_file != NULL) {
1762 if (!load_certs(chain_file, 0, &chain, pass, "client certificate chain"))
1763 goto end;
1764 }
1765
1766 if (crl_file != NULL) {
1767 X509_CRL *crl;
1768 crl = load_crl(crl_file, crl_format, 0, "CRL");
1769 if (crl == NULL)
1770 goto end;
1771 crls = sk_X509_CRL_new_null();
1772 if (crls == NULL || !sk_X509_CRL_push(crls, crl)) {
1773 BIO_puts(bio_err, "Error adding CRL\n");
1774 ERR_print_errors(bio_err);
1775 X509_CRL_free(crl);
1776 goto end;
1777 }
1778 }
1779
1780 if (!load_excert(&exc))
1781 goto end;
1782
1783 if (bio_c_out == NULL) {
1784 if (c_quiet && !c_debug) {
1785 bio_c_out = BIO_new(BIO_s_null());
1786 if (c_msg && bio_c_msg == NULL) {
1787 bio_c_msg = dup_bio_out(FORMAT_TEXT);
1788 if (bio_c_msg == NULL) {
1789 BIO_printf(bio_err, "Out of memory\n");
1790 goto end;
1791 }
1792 }
1793 } else {
1794 bio_c_out = dup_bio_out(FORMAT_TEXT);
1795 }
1796
1797 if (bio_c_out == NULL) {
1798 BIO_printf(bio_err, "Unable to create BIO\n");
1799 goto end;
1800 }
1801 }
1802 #ifndef OPENSSL_NO_SRP
1803 if (!app_passwd(srppass, NULL, &srp_arg.srppassin, NULL)) {
1804 BIO_printf(bio_err, "Error getting password\n");
1805 goto end;
1806 }
1807 #endif
1808
1809 ctx = SSL_CTX_new_ex(app_get0_libctx(), app_get0_propq(), meth);
1810 if (ctx == NULL) {
1811 ERR_print_errors(bio_err);
1812 goto end;
1813 }
1814
1815 SSL_CTX_clear_mode(ctx, SSL_MODE_AUTO_RETRY);
1816
1817 if (sdebug)
1818 ssl_ctx_security_debug(ctx, sdebug);
1819
1820 if (!config_ctx(cctx, ssl_args, ctx))
1821 goto end;
1822
1823 if (ssl_config != NULL) {
1824 if (SSL_CTX_config(ctx, ssl_config) == 0) {
1825 BIO_printf(bio_err, "Error using configuration \"%s\"\n",
1826 ssl_config);
1827 ERR_print_errors(bio_err);
1828 goto end;
1829 }
1830 }
1831
1832 #ifndef OPENSSL_NO_SCTP
1833 if (protocol == IPPROTO_SCTP && sctp_label_bug == 1)
1834 SSL_CTX_set_mode(ctx, SSL_MODE_DTLS_SCTP_LABEL_LENGTH_BUG);
1835 #endif
1836
1837 if (min_version != 0
1838 && SSL_CTX_set_min_proto_version(ctx, min_version) == 0)
1839 goto end;
1840 if (max_version != 0
1841 && SSL_CTX_set_max_proto_version(ctx, max_version) == 0)
1842 goto end;
1843
1844 if (ignore_unexpected_eof)
1845 SSL_CTX_set_options(ctx, SSL_OP_IGNORE_UNEXPECTED_EOF);
1846 #ifndef OPENSSL_NO_KTLS
1847 if (enable_ktls)
1848 SSL_CTX_set_options(ctx, SSL_OP_ENABLE_KTLS);
1849 #endif
1850
1851 if (vpmtouched && !SSL_CTX_set1_param(ctx, vpm)) {
1852 BIO_printf(bio_err, "Error setting verify params\n");
1853 ERR_print_errors(bio_err);
1854 goto end;
1855 }
1856
1857 if (async) {
1858 SSL_CTX_set_mode(ctx, SSL_MODE_ASYNC);
1859 }
1860
1861 if (max_send_fragment > 0
1862 && !SSL_CTX_set_max_send_fragment(ctx, max_send_fragment)) {
1863 BIO_printf(bio_err, "%s: Max send fragment size %u is out of permitted range\n",
1864 prog, max_send_fragment);
1865 goto end;
1866 }
1867
1868 if (split_send_fragment > 0
1869 && !SSL_CTX_set_split_send_fragment(ctx, split_send_fragment)) {
1870 BIO_printf(bio_err, "%s: Split send fragment size %u is out of permitted range\n",
1871 prog, split_send_fragment);
1872 goto end;
1873 }
1874
1875 if (max_pipelines > 0
1876 && !SSL_CTX_set_max_pipelines(ctx, max_pipelines)) {
1877 BIO_printf(bio_err, "%s: Max pipelines %u is out of permitted range\n",
1878 prog, max_pipelines);
1879 goto end;
1880 }
1881
1882 if (read_buf_len > 0) {
1883 SSL_CTX_set_default_read_buffer_len(ctx, read_buf_len);
1884 }
1885
1886 if (maxfraglen > 0
1887 && !SSL_CTX_set_tlsext_max_fragment_length(ctx, maxfraglen)) {
1888 BIO_printf(bio_err,
1889 "%s: Max Fragment Length code %u is out of permitted values"
1890 "\n", prog, maxfraglen);
1891 goto end;
1892 }
1893
1894 if (!ssl_load_stores(ctx,
1895 vfyCApath, vfyCAfile, vfyCAstore,
1896 chCApath, chCAfile, chCAstore,
1897 crls, crl_download)) {
1898 BIO_printf(bio_err, "Error loading store locations\n");
1899 ERR_print_errors(bio_err);
1900 goto end;
1901 }
1902 if (ReqCAfile != NULL) {
1903 STACK_OF(X509_NAME) *nm = sk_X509_NAME_new_null();
1904
1905 if (nm == NULL || !SSL_add_file_cert_subjects_to_stack(nm, ReqCAfile)) {
1906 sk_X509_NAME_pop_free(nm, X509_NAME_free);
1907 BIO_printf(bio_err, "Error loading CA names\n");
1908 ERR_print_errors(bio_err);
1909 goto end;
1910 }
1911 SSL_CTX_set0_CA_list(ctx, nm);
1912 }
1913 #ifndef OPENSSL_NO_ENGINE
1914 if (ssl_client_engine) {
1915 if (!SSL_CTX_set_client_cert_engine(ctx, ssl_client_engine)) {
1916 BIO_puts(bio_err, "Error setting client auth engine\n");
1917 ERR_print_errors(bio_err);
1918 release_engine(ssl_client_engine);
1919 goto end;
1920 }
1921 release_engine(ssl_client_engine);
1922 }
1923 #endif
1924
1925 #ifndef OPENSSL_NO_PSK
1926 if (psk_key != NULL) {
1927 if (c_debug)
1928 BIO_printf(bio_c_out, "PSK key given, setting client callback\n");
1929 SSL_CTX_set_psk_client_callback(ctx, psk_client_cb);
1930 }
1931 #endif
1932 if (psksessf != NULL) {
1933 BIO *stmp = BIO_new_file(psksessf, "r");
1934
1935 if (stmp == NULL) {
1936 BIO_printf(bio_err, "Can't open PSK session file %s\n", psksessf);
1937 ERR_print_errors(bio_err);
1938 goto end;
1939 }
1940 psksess = PEM_read_bio_SSL_SESSION(stmp, NULL, 0, NULL);
1941 BIO_free(stmp);
1942 if (psksess == NULL) {
1943 BIO_printf(bio_err, "Can't read PSK session file %s\n", psksessf);
1944 ERR_print_errors(bio_err);
1945 goto end;
1946 }
1947 }
1948 if (psk_key != NULL || psksess != NULL)
1949 SSL_CTX_set_psk_use_session_callback(ctx, psk_use_session_cb);
1950
1951 #ifndef OPENSSL_NO_SRTP
1952 if (srtp_profiles != NULL) {
1953 /* Returns 0 on success! */
1954 if (SSL_CTX_set_tlsext_use_srtp(ctx, srtp_profiles) != 0) {
1955 BIO_printf(bio_err, "Error setting SRTP profile\n");
1956 ERR_print_errors(bio_err);
1957 goto end;
1958 }
1959 }
1960 #endif
1961
1962 if (exc != NULL)
1963 ssl_ctx_set_excert(ctx, exc);
1964
1965 #if !defined(OPENSSL_NO_NEXTPROTONEG)
1966 if (next_proto.data != NULL)
1967 SSL_CTX_set_next_proto_select_cb(ctx, next_proto_cb, &next_proto);
1968 #endif
1969 if (alpn_in) {
1970 size_t alpn_len;
1971 unsigned char *alpn = next_protos_parse(&alpn_len, alpn_in);
1972
1973 if (alpn == NULL) {
1974 BIO_printf(bio_err, "Error parsing -alpn argument\n");
1975 goto end;
1976 }
1977 /* Returns 0 on success! */
1978 if (SSL_CTX_set_alpn_protos(ctx, alpn, alpn_len) != 0) {
1979 BIO_printf(bio_err, "Error setting ALPN\n");
1980 goto end;
1981 }
1982 OPENSSL_free(alpn);
1983 }
1984
1985 for (i = 0; i < serverinfo_count; i++) {
1986 if (!SSL_CTX_add_client_custom_ext(ctx,
1987 serverinfo_types[i],
1988 NULL, NULL, NULL,
1989 serverinfo_cli_parse_cb, NULL)) {
1990 BIO_printf(bio_err,
1991 "Warning: Unable to add custom extension %u, skipping\n",
1992 serverinfo_types[i]);
1993 }
1994 }
1995
1996 if (state)
1997 SSL_CTX_set_info_callback(ctx, apps_ssl_info_callback);
1998
1999 #ifndef OPENSSL_NO_CT
2000 /* Enable SCT processing, without early connection termination */
2001 if (ct_validation &&
2002 !SSL_CTX_enable_ct(ctx, SSL_CT_VALIDATION_PERMISSIVE)) {
2003 ERR_print_errors(bio_err);
2004 goto end;
2005 }
2006
2007 if (!ctx_set_ctlog_list_file(ctx, ctlog_file)) {
2008 if (ct_validation) {
2009 ERR_print_errors(bio_err);
2010 goto end;
2011 }
2012
2013 /*
2014 * If CT validation is not enabled, the log list isn't needed so don't
2015 * show errors or abort. We try to load it regardless because then we
2016 * can show the names of the logs any SCTs came from (SCTs may be seen
2017 * even with validation disabled).
2018 */
2019 ERR_clear_error();
2020 }
2021 #endif
2022
2023 SSL_CTX_set_verify(ctx, verify, verify_callback);
2024
2025 if (!ctx_set_verify_locations(ctx, CAfile, noCAfile, CApath, noCApath,
2026 CAstore, noCAstore)) {
2027 ERR_print_errors(bio_err);
2028 goto end;
2029 }
2030
2031 ssl_ctx_add_crls(ctx, crls, crl_download);
2032
2033 if (!set_cert_key_stuff(ctx, cert, key, chain, build_chain))
2034 goto end;
2035
2036 if (!noservername) {
2037 tlsextcbp.biodebug = bio_err;
2038 SSL_CTX_set_tlsext_servername_callback(ctx, ssl_servername_cb);
2039 SSL_CTX_set_tlsext_servername_arg(ctx, &tlsextcbp);
2040 }
2041 #ifndef OPENSSL_NO_SRP
2042 if (srp_arg.srplogin != NULL
2043 && !set_up_srp_arg(ctx, &srp_arg, srp_lateuser, c_msg, c_debug))
2044 goto end;
2045 # endif
2046
2047 if (dane_tlsa_domain != NULL) {
2048 if (SSL_CTX_dane_enable(ctx) <= 0) {
2049 BIO_printf(bio_err,
2050 "%s: Error enabling DANE TLSA authentication.\n",
2051 prog);
2052 ERR_print_errors(bio_err);
2053 goto end;
2054 }
2055 }
2056
2057 /*
2058 * In TLSv1.3 NewSessionTicket messages arrive after the handshake and can
2059 * come at any time. Therefore, we use a callback to write out the session
2060 * when we know about it. This approach works for < TLSv1.3 as well.
2061 */
2062 SSL_CTX_set_session_cache_mode(ctx, SSL_SESS_CACHE_CLIENT
2063 | SSL_SESS_CACHE_NO_INTERNAL_STORE);
2064 SSL_CTX_sess_set_new_cb(ctx, new_session_cb);
2065
2066 if (set_keylog_file(ctx, keylog_file))
2067 goto end;
2068
2069 con = SSL_new(ctx);
2070 if (con == NULL)
2071 goto end;
2072
2073 if (enable_pha)
2074 SSL_set_post_handshake_auth(con, 1);
2075
2076 if (enable_client_rpk)
2077 if (!SSL_set1_client_cert_type(con, cert_type_rpk, sizeof(cert_type_rpk))) {
2078 BIO_printf(bio_err, "Error setting client certificate types\n");
2079 goto end;
2080 }
2081 if (enable_server_rpk) {
2082 if (!SSL_set1_server_cert_type(con, cert_type_rpk, sizeof(cert_type_rpk))) {
2083 BIO_printf(bio_err, "Error setting server certificate types\n");
2084 goto end;
2085 }
2086 }
2087
2088 if (sess_in != NULL) {
2089 SSL_SESSION *sess;
2090 BIO *stmp = BIO_new_file(sess_in, "r");
2091 if (stmp == NULL) {
2092 BIO_printf(bio_err, "Can't open session file %s\n", sess_in);
2093 ERR_print_errors(bio_err);
2094 goto end;
2095 }
2096 sess = PEM_read_bio_SSL_SESSION(stmp, NULL, 0, NULL);
2097 BIO_free(stmp);
2098 if (sess == NULL) {
2099 BIO_printf(bio_err, "Can't open session file %s\n", sess_in);
2100 ERR_print_errors(bio_err);
2101 goto end;
2102 }
2103 if (!SSL_set_session(con, sess)) {
2104 BIO_printf(bio_err, "Can't set session\n");
2105 ERR_print_errors(bio_err);
2106 goto end;
2107 }
2108
2109 SSL_SESSION_free(sess);
2110 }
2111
2112 if (fallback_scsv)
2113 SSL_set_mode(con, SSL_MODE_SEND_FALLBACK_SCSV);
2114
2115 if (!noservername && (servername != NULL || dane_tlsa_domain == NULL)) {
2116 if (servername == NULL) {
2117 if (host == NULL || is_dNS_name(host))
2118 servername = (host == NULL) ? "localhost" : host;
2119 }
2120 if (servername != NULL && !SSL_set_tlsext_host_name(con, servername)) {
2121 BIO_printf(bio_err, "Unable to set TLS servername extension.\n");
2122 ERR_print_errors(bio_err);
2123 goto end;
2124 }
2125 }
2126
2127 if (dane_tlsa_domain != NULL) {
2128 if (SSL_dane_enable(con, dane_tlsa_domain) <= 0) {
2129 BIO_printf(bio_err, "%s: Error enabling DANE TLSA "
2130 "authentication.\n", prog);
2131 ERR_print_errors(bio_err);
2132 goto end;
2133 }
2134 if (dane_tlsa_rrset == NULL) {
2135 BIO_printf(bio_err, "%s: DANE TLSA authentication requires at "
2136 "least one -dane_tlsa_rrdata option.\n", prog);
2137 goto end;
2138 }
2139 if (tlsa_import_rrset(con, dane_tlsa_rrset) <= 0) {
2140 BIO_printf(bio_err, "%s: Failed to import any TLSA "
2141 "records.\n", prog);
2142 goto end;
2143 }
2144 if (dane_ee_no_name)
2145 SSL_dane_set_flags(con, DANE_FLAG_NO_DANE_EE_NAMECHECKS);
2146 } else if (dane_tlsa_rrset != NULL) {
2147 BIO_printf(bio_err, "%s: DANE TLSA authentication requires the "
2148 "-dane_tlsa_domain option.\n", prog);
2149 goto end;
2150 }
2151 #ifndef OPENSSL_NO_DTLS
2152 if (isdtls && tfo) {
2153 BIO_printf(bio_err, "%s: DTLS does not support the -tfo option\n", prog);
2154 goto end;
2155 }
2156 #endif
2157 #ifndef OPENSSL_NO_QUIC
2158 if (isquic && tfo) {
2159 BIO_printf(bio_err, "%s: QUIC does not support the -tfo option\n", prog);
2160 goto end;
2161 }
2162 if (isquic && alpn_in == NULL) {
2163 BIO_printf(bio_err, "%s: QUIC requires ALPN to be specified (e.g. \"h3\" for HTTP/3) via the -alpn option\n", prog);
2164 goto end;
2165 }
2166 #endif
2167
2168 if (tfo)
2169 BIO_printf(bio_c_out, "Connecting via TFO\n");
2170 re_start:
2171 /* peer_addr might be set from previous connections */
2172 BIO_ADDR_free(peer_addr);
2173 peer_addr = NULL;
2174 if (init_client(&sock, host, port, bindhost, bindport, socket_family,
2175 socket_type, protocol, tfo, !isquic, &peer_addr) == 0) {
2176 BIO_printf(bio_err, "connect:errno=%d\n", get_last_socket_error());
2177 BIO_closesocket(sock);
2178 goto end;
2179 }
2180 BIO_printf(bio_c_out, "CONNECTED(%08X)\n", sock);
2181
2182 /*
2183 * QUIC always uses a non-blocking socket - and we have to switch on
2184 * non-blocking mode at the SSL level
2185 */
2186 if (c_nbio || isquic) {
2187 if (!BIO_socket_nbio(sock, 1)) {
2188 ERR_print_errors(bio_err);
2189 goto end;
2190 }
2191 if (c_nbio) {
2192 if (isquic && !SSL_set_blocking_mode(con, 0))
2193 goto end;
2194 BIO_printf(bio_c_out, "Turned on non blocking io\n");
2195 }
2196 }
2197 #ifndef OPENSSL_NO_DTLS
2198 if (isdtls) {
2199 union BIO_sock_info_u peer_info;
2200
2201 #ifndef OPENSSL_NO_SCTP
2202 if (protocol == IPPROTO_SCTP)
2203 sbio = BIO_new_dgram_sctp(sock, BIO_NOCLOSE);
2204 else
2205 #endif
2206 sbio = BIO_new_dgram(sock, BIO_NOCLOSE);
2207
2208 if (sbio == NULL || (peer_info.addr = BIO_ADDR_new()) == NULL) {
2209 BIO_printf(bio_err, "memory allocation failure\n");
2210 BIO_free(sbio);
2211 BIO_closesocket(sock);
2212 goto end;
2213 }
2214 if (!BIO_sock_info(sock, BIO_SOCK_INFO_ADDRESS, &peer_info)) {
2215 BIO_printf(bio_err, "getsockname:errno=%d\n",
2216 get_last_socket_error());
2217 BIO_free(sbio);
2218 BIO_ADDR_free(peer_info.addr);
2219 BIO_closesocket(sock);
2220 goto end;
2221 }
2222
2223 (void)BIO_ctrl_set_connected(sbio, peer_info.addr);
2224 BIO_ADDR_free(peer_info.addr);
2225 peer_info.addr = NULL;
2226
2227 if (enable_timeouts) {
2228 timeout.tv_sec = 0;
2229 timeout.tv_usec = DGRAM_RCV_TIMEOUT;
2230 BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_RECV_TIMEOUT, 0, &timeout);
2231
2232 timeout.tv_sec = 0;
2233 timeout.tv_usec = DGRAM_SND_TIMEOUT;
2234 BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_SEND_TIMEOUT, 0, &timeout);
2235 }
2236
2237 if (socket_mtu) {
2238 if (socket_mtu < DTLS_get_link_min_mtu(con)) {
2239 BIO_printf(bio_err, "MTU too small. Must be at least %ld\n",
2240 DTLS_get_link_min_mtu(con));
2241 BIO_free(sbio);
2242 goto shut;
2243 }
2244 SSL_set_options(con, SSL_OP_NO_QUERY_MTU);
2245 if (!DTLS_set_link_mtu(con, socket_mtu)) {
2246 BIO_printf(bio_err, "Failed to set MTU\n");
2247 BIO_free(sbio);
2248 goto shut;
2249 }
2250 } else {
2251 /* want to do MTU discovery */
2252 BIO_ctrl(sbio, BIO_CTRL_DGRAM_MTU_DISCOVER, 0, NULL);
2253 }
2254 } else
2255 #endif /* OPENSSL_NO_DTLS */
2256 #ifndef OPENSSL_NO_QUIC
2257 if (isquic) {
2258 sbio = BIO_new_dgram(sock, BIO_NOCLOSE);
2259 if (!SSL_set1_initial_peer_addr(con, peer_addr)) {
2260 BIO_printf(bio_err, "Failed to set the initial peer address\n");
2261 goto shut;
2262 }
2263 } else
2264 #endif
2265 sbio = BIO_new_socket(sock, BIO_NOCLOSE);
2266
2267 if (sbio == NULL) {
2268 BIO_printf(bio_err, "Unable to create BIO\n");
2269 ERR_print_errors(bio_err);
2270 BIO_closesocket(sock);
2271 goto end;
2272 }
2273
2274 /* Now that we're using a BIO... */
2275 if (tfo) {
2276 (void)BIO_set_conn_address(sbio, peer_addr);
2277 (void)BIO_set_tfo(sbio, 1);
2278 }
2279
2280 if (nbio_test) {
2281 BIO *test;
2282
2283 test = BIO_new(BIO_f_nbio_test());
2284 if (test == NULL) {
2285 BIO_printf(bio_err, "Unable to create BIO\n");
2286 BIO_free(sbio);
2287 goto shut;
2288 }
2289 sbio = BIO_push(test, sbio);
2290 }
2291
2292 if (c_debug) {
2293 BIO_set_callback_ex(sbio, bio_dump_callback);
2294 BIO_set_callback_arg(sbio, (char *)bio_c_out);
2295 }
2296 if (c_msg) {
2297 #ifndef OPENSSL_NO_SSL_TRACE
2298 if (c_msg == 2)
2299 SSL_set_msg_callback(con, SSL_trace);
2300 else
2301 #endif
2302 SSL_set_msg_callback(con, msg_cb);
2303 SSL_set_msg_callback_arg(con, bio_c_msg ? bio_c_msg : bio_c_out);
2304 }
2305
2306 if (c_tlsextdebug) {
2307 SSL_set_tlsext_debug_callback(con, tlsext_cb);
2308 SSL_set_tlsext_debug_arg(con, bio_c_out);
2309 }
2310 #ifndef OPENSSL_NO_OCSP
2311 if (c_status_req) {
2312 SSL_set_tlsext_status_type(con, TLSEXT_STATUSTYPE_ocsp);
2313 SSL_CTX_set_tlsext_status_cb(ctx, ocsp_resp_cb);
2314 SSL_CTX_set_tlsext_status_arg(ctx, bio_c_out);
2315 }
2316 #endif
2317
2318 SSL_set_bio(con, sbio, sbio);
2319 SSL_set_connect_state(con);
2320
2321 /* ok, lets connect */
2322 if (fileno_stdin() > SSL_get_fd(con))
2323 width = fileno_stdin() + 1;
2324 else
2325 width = SSL_get_fd(con) + 1;
2326
2327 read_tty = 1;
2328 write_tty = 0;
2329 tty_on = 0;
2330 read_ssl = 1;
2331 write_ssl = 1;
2332 first_loop = 1;
2333
2334 cbuf_len = 0;
2335 cbuf_off = 0;
2336 sbuf_len = 0;
2337 sbuf_off = 0;
2338
2339 #ifndef OPENSSL_NO_HTTP
2340 if (proxystr != NULL) {
2341 /* Here we must use the connect string target host & port */
2342 if (!OSSL_HTTP_proxy_connect(sbio, thost, tport, proxyuser, proxypass,
2343 0 /* no timeout */, bio_err, prog))
2344 goto shut;
2345 }
2346 #endif
2347
2348 switch ((PROTOCOL_CHOICE) starttls_proto) {
2349 case PROTO_OFF:
2350 break;
2351 case PROTO_LMTP:
2352 case PROTO_SMTP:
2353 {
2354 /*
2355 * This is an ugly hack that does a lot of assumptions. We do
2356 * have to handle multi-line responses which may come in a single
2357 * packet or not. We therefore have to use BIO_gets() which does
2358 * need a buffering BIO. So during the initial chitchat we do
2359 * push a buffering BIO into the chain that is removed again
2360 * later on to not disturb the rest of the s_client operation.
2361 */
2362 int foundit = 0;
2363 BIO *fbio = BIO_new(BIO_f_buffer());
2364
2365 if (fbio == NULL) {
2366 BIO_printf(bio_err, "Unable to create BIO\n");
2367 goto shut;
2368 }
2369 BIO_push(fbio, sbio);
2370 /* Wait for multi-line response to end from LMTP or SMTP */
2371 do {
2372 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2373 } while (mbuf_len > 3 && mbuf[3] == '-');
2374 if (protohost == NULL)
2375 protohost = "mail.example.com";
2376 if (starttls_proto == (int)PROTO_LMTP)
2377 BIO_printf(fbio, "LHLO %s\r\n", protohost);
2378 else
2379 BIO_printf(fbio, "EHLO %s\r\n", protohost);
2380 (void)BIO_flush(fbio);
2381 /*
2382 * Wait for multi-line response to end LHLO LMTP or EHLO SMTP
2383 * response.
2384 */
2385 do {
2386 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2387 if (strstr(mbuf, "STARTTLS"))
2388 foundit = 1;
2389 } while (mbuf_len > 3 && mbuf[3] == '-');
2390 (void)BIO_flush(fbio);
2391 BIO_pop(fbio);
2392 BIO_free(fbio);
2393 if (!foundit)
2394 BIO_printf(bio_err,
2395 "Didn't find STARTTLS in server response,"
2396 " trying anyway...\n");
2397 BIO_printf(sbio, "STARTTLS\r\n");
2398 BIO_read(sbio, sbuf, BUFSIZZ);
2399 }
2400 break;
2401 case PROTO_POP3:
2402 {
2403 BIO_read(sbio, mbuf, BUFSIZZ);
2404 BIO_printf(sbio, "STLS\r\n");
2405 mbuf_len = BIO_read(sbio, sbuf, BUFSIZZ);
2406 if (mbuf_len < 0) {
2407 BIO_printf(bio_err, "BIO_read failed\n");
2408 goto end;
2409 }
2410 }
2411 break;
2412 case PROTO_IMAP:
2413 {
2414 int foundit = 0;
2415 BIO *fbio = BIO_new(BIO_f_buffer());
2416
2417 if (fbio == NULL) {
2418 BIO_printf(bio_err, "Unable to create BIO\n");
2419 goto shut;
2420 }
2421 BIO_push(fbio, sbio);
2422 BIO_gets(fbio, mbuf, BUFSIZZ);
2423 /* STARTTLS command requires CAPABILITY... */
2424 BIO_printf(fbio, ". CAPABILITY\r\n");
2425 (void)BIO_flush(fbio);
2426 /* wait for multi-line CAPABILITY response */
2427 do {
2428 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2429 if (strstr(mbuf, "STARTTLS"))
2430 foundit = 1;
2431 }
2432 while (mbuf_len > 3 && mbuf[0] != '.');
2433 (void)BIO_flush(fbio);
2434 BIO_pop(fbio);
2435 BIO_free(fbio);
2436 if (!foundit)
2437 BIO_printf(bio_err,
2438 "Didn't find STARTTLS in server response,"
2439 " trying anyway...\n");
2440 BIO_printf(sbio, ". STARTTLS\r\n");
2441 BIO_read(sbio, sbuf, BUFSIZZ);
2442 }
2443 break;
2444 case PROTO_FTP:
2445 {
2446 BIO *fbio = BIO_new(BIO_f_buffer());
2447
2448 if (fbio == NULL) {
2449 BIO_printf(bio_err, "Unable to create BIO\n");
2450 goto shut;
2451 }
2452 BIO_push(fbio, sbio);
2453 /* wait for multi-line response to end from FTP */
2454 do {
2455 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2456 }
2457 while (mbuf_len > 3 && (!isdigit((unsigned char)mbuf[0]) || !isdigit((unsigned char)mbuf[1]) || !isdigit((unsigned char)mbuf[2]) || mbuf[3] != ' '));
2458 (void)BIO_flush(fbio);
2459 BIO_pop(fbio);
2460 BIO_free(fbio);
2461 BIO_printf(sbio, "AUTH TLS\r\n");
2462 BIO_read(sbio, sbuf, BUFSIZZ);
2463 }
2464 break;
2465 case PROTO_XMPP:
2466 case PROTO_XMPP_SERVER:
2467 {
2468 int seen = 0;
2469 BIO_printf(sbio, "<stream:stream "
2470 "xmlns:stream='http://etherx.jabber.org/streams' "
2471 "xmlns='jabber:%s' to='%s' version='1.0'>",
2472 starttls_proto == PROTO_XMPP ? "client" : "server",
2473 protohost ? protohost : host);
2474 seen = BIO_read(sbio, mbuf, BUFSIZZ);
2475 if (seen < 0) {
2476 BIO_printf(bio_err, "BIO_read failed\n");
2477 goto end;
2478 }
2479 mbuf[seen] = '\0';
2480 while (!strstr
2481 (mbuf, "<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'")
2482 && !strstr(mbuf,
2483 "<starttls xmlns=\"urn:ietf:params:xml:ns:xmpp-tls\""))
2484 {
2485 seen = BIO_read(sbio, mbuf, BUFSIZZ);
2486
2487 if (seen <= 0)
2488 goto shut;
2489
2490 mbuf[seen] = '\0';
2491 }
2492 BIO_printf(sbio,
2493 "<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'/>");
2494 seen = BIO_read(sbio, sbuf, BUFSIZZ);
2495 if (seen < 0) {
2496 BIO_printf(bio_err, "BIO_read failed\n");
2497 goto shut;
2498 }
2499 sbuf[seen] = '\0';
2500 if (!strstr(sbuf, "<proceed"))
2501 goto shut;
2502 mbuf[0] = '\0';
2503 }
2504 break;
2505 case PROTO_TELNET:
2506 {
2507 static const unsigned char tls_do[] = {
2508 /* IAC DO START_TLS */
2509 255, 253, 46
2510 };
2511 static const unsigned char tls_will[] = {
2512 /* IAC WILL START_TLS */
2513 255, 251, 46
2514 };
2515 static const unsigned char tls_follows[] = {
2516 /* IAC SB START_TLS FOLLOWS IAC SE */
2517 255, 250, 46, 1, 255, 240
2518 };
2519 int bytes;
2520
2521 /* Telnet server should demand we issue START_TLS */
2522 bytes = BIO_read(sbio, mbuf, BUFSIZZ);
2523 if (bytes != 3 || memcmp(mbuf, tls_do, 3) != 0)
2524 goto shut;
2525 /* Agree to issue START_TLS and send the FOLLOWS sub-command */
2526 BIO_write(sbio, tls_will, 3);
2527 BIO_write(sbio, tls_follows, 6);
2528 (void)BIO_flush(sbio);
2529 /* Telnet server also sent the FOLLOWS sub-command */
2530 bytes = BIO_read(sbio, mbuf, BUFSIZZ);
2531 if (bytes != 6 || memcmp(mbuf, tls_follows, 6) != 0)
2532 goto shut;
2533 }
2534 break;
2535 case PROTO_IRC:
2536 {
2537 int numeric;
2538 BIO *fbio = BIO_new(BIO_f_buffer());
2539
2540 if (fbio == NULL) {
2541 BIO_printf(bio_err, "Unable to create BIO\n");
2542 goto end;
2543 }
2544 BIO_push(fbio, sbio);
2545 BIO_printf(fbio, "STARTTLS\r\n");
2546 (void)BIO_flush(fbio);
2547 width = SSL_get_fd(con) + 1;
2548
2549 do {
2550 numeric = 0;
2551
2552 FD_ZERO(&readfds);
2553 openssl_fdset(SSL_get_fd(con), &readfds);
2554 timeout.tv_sec = S_CLIENT_IRC_READ_TIMEOUT;
2555 timeout.tv_usec = 0;
2556 /*
2557 * If the IRCd doesn't respond within
2558 * S_CLIENT_IRC_READ_TIMEOUT seconds, assume
2559 * it doesn't support STARTTLS. Many IRCds
2560 * will not give _any_ sort of response to a
2561 * STARTTLS command when it's not supported.
2562 */
2563 if (!BIO_get_buffer_num_lines(fbio)
2564 && !BIO_pending(fbio)
2565 && !BIO_pending(sbio)
2566 && select(width, (void *)&readfds, NULL, NULL,
2567 &timeout) < 1) {
2568 BIO_printf(bio_err,
2569 "Timeout waiting for response (%d seconds).\n",
2570 S_CLIENT_IRC_READ_TIMEOUT);
2571 break;
2572 }
2573
2574 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2575 if (mbuf_len < 1 || sscanf(mbuf, "%*s %d", &numeric) != 1)
2576 break;
2577 /* :example.net 451 STARTTLS :You have not registered */
2578 /* :example.net 421 STARTTLS :Unknown command */
2579 if ((numeric == 451 || numeric == 421)
2580 && strstr(mbuf, "STARTTLS") != NULL) {
2581 BIO_printf(bio_err, "STARTTLS not supported: %s", mbuf);
2582 break;
2583 }
2584 if (numeric == 691) {
2585 BIO_printf(bio_err, "STARTTLS negotiation failed: ");
2586 ERR_print_errors(bio_err);
2587 break;
2588 }
2589 } while (numeric != 670);
2590
2591 (void)BIO_flush(fbio);
2592 BIO_pop(fbio);
2593 BIO_free(fbio);
2594 if (numeric != 670) {
2595 BIO_printf(bio_err, "Server does not support STARTTLS.\n");
2596 ret = 1;
2597 goto shut;
2598 }
2599 }
2600 break;
2601 case PROTO_MYSQL:
2602 {
2603 /* SSL request packet */
2604 static const unsigned char ssl_req[] = {
2605 /* payload_length, sequence_id */
2606 0x20, 0x00, 0x00, 0x01,
2607 /* payload */
2608 /* capability flags, CLIENT_SSL always set */
2609 0x85, 0xae, 0x7f, 0x00,
2610 /* max-packet size */
2611 0x00, 0x00, 0x00, 0x01,
2612 /* character set */
2613 0x21,
2614 /* string[23] reserved (all [0]) */
2615 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
2616 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
2617 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
2618 };
2619 int bytes = 0;
2620 int ssl_flg = 0x800;
2621 int pos;
2622 const unsigned char *packet = (const unsigned char *)sbuf;
2623
2624 /* Receiving Initial Handshake packet. */
2625 bytes = BIO_read(sbio, (void *)packet, BUFSIZZ);
2626 if (bytes < 0) {
2627 BIO_printf(bio_err, "BIO_read failed\n");
2628 goto shut;
2629 /* Packet length[3], Packet number[1] + minimum payload[17] */
2630 } else if (bytes < 21) {
2631 BIO_printf(bio_err, "MySQL packet too short.\n");
2632 goto shut;
2633 } else if (bytes != (4 + packet[0] +
2634 (packet[1] << 8) +
2635 (packet[2] << 16))) {
2636 BIO_printf(bio_err, "MySQL packet length does not match.\n");
2637 goto shut;
2638 /* protocol version[1] */
2639 } else if (packet[4] != 0xA) {
2640 BIO_printf(bio_err,
2641 "Only MySQL protocol version 10 is supported.\n");
2642 goto shut;
2643 }
2644
2645 pos = 5;
2646 /* server version[string+NULL] */
2647 for (;;) {
2648 if (pos >= bytes) {
2649 BIO_printf(bio_err, "Cannot confirm server version. ");
2650 goto shut;
2651 } else if (packet[pos++] == '\0') {
2652 break;
2653 }
2654 }
2655
2656 /* make sure we have at least 15 bytes left in the packet */
2657 if (pos + 15 > bytes) {
2658 BIO_printf(bio_err,
2659 "MySQL server handshake packet is broken.\n");
2660 goto shut;
2661 }
2662
2663 pos += 12; /* skip over conn id[4] + SALT[8] */
2664 if (packet[pos++] != '\0') { /* verify filler */
2665 BIO_printf(bio_err,
2666 "MySQL packet is broken.\n");
2667 goto shut;
2668 }
2669
2670 /* capability flags[2] */
2671 if (!((packet[pos] + (packet[pos + 1] << 8)) & ssl_flg)) {
2672 BIO_printf(bio_err, "MySQL server does not support SSL.\n");
2673 goto shut;
2674 }
2675
2676 /* Sending SSL Handshake packet. */
2677 BIO_write(sbio, ssl_req, sizeof(ssl_req));
2678 (void)BIO_flush(sbio);
2679 }
2680 break;
2681 case PROTO_POSTGRES:
2682 {
2683 static const unsigned char ssl_request[] = {
2684 /* Length SSLRequest */
2685 0, 0, 0, 8, 4, 210, 22, 47
2686 };
2687 int bytes;
2688
2689 /* Send SSLRequest packet */
2690 BIO_write(sbio, ssl_request, 8);
2691 (void)BIO_flush(sbio);
2692
2693 /* Reply will be a single S if SSL is enabled */
2694 bytes = BIO_read(sbio, sbuf, BUFSIZZ);
2695 if (bytes != 1 || sbuf[0] != 'S')
2696 goto shut;
2697 }
2698 break;
2699 case PROTO_NNTP:
2700 {
2701 int foundit = 0;
2702 BIO *fbio = BIO_new(BIO_f_buffer());
2703
2704 if (fbio == NULL) {
2705 BIO_printf(bio_err, "Unable to create BIO\n");
2706 goto end;
2707 }
2708 BIO_push(fbio, sbio);
2709 BIO_gets(fbio, mbuf, BUFSIZZ);
2710 /* STARTTLS command requires CAPABILITIES... */
2711 BIO_printf(fbio, "CAPABILITIES\r\n");
2712 (void)BIO_flush(fbio);
2713 BIO_gets(fbio, mbuf, BUFSIZZ);
2714 /* no point in trying to parse the CAPABILITIES response if there is none */
2715 if (strstr(mbuf, "101") != NULL) {
2716 /* wait for multi-line CAPABILITIES response */
2717 do {
2718 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2719 if (strstr(mbuf, "STARTTLS"))
2720 foundit = 1;
2721 } while (mbuf_len > 1 && mbuf[0] != '.');
2722 }
2723 (void)BIO_flush(fbio);
2724 BIO_pop(fbio);
2725 BIO_free(fbio);
2726 if (!foundit)
2727 BIO_printf(bio_err,
2728 "Didn't find STARTTLS in server response,"
2729 " trying anyway...\n");
2730 BIO_printf(sbio, "STARTTLS\r\n");
2731 mbuf_len = BIO_read(sbio, mbuf, BUFSIZZ);
2732 if (mbuf_len < 0) {
2733 BIO_printf(bio_err, "BIO_read failed\n");
2734 goto end;
2735 }
2736 mbuf[mbuf_len] = '\0';
2737 if (strstr(mbuf, "382") == NULL) {
2738 BIO_printf(bio_err, "STARTTLS failed: %s", mbuf);
2739 goto shut;
2740 }
2741 }
2742 break;
2743 case PROTO_SIEVE:
2744 {
2745 int foundit = 0;
2746 BIO *fbio = BIO_new(BIO_f_buffer());
2747
2748 if (fbio == NULL) {
2749 BIO_printf(bio_err, "Unable to create BIO\n");
2750 goto end;
2751 }
2752 BIO_push(fbio, sbio);
2753 /* wait for multi-line response to end from Sieve */
2754 do {
2755 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2756 /*
2757 * According to RFC 5804 § 1.7, capability
2758 * is case-insensitive, make it uppercase
2759 */
2760 if (mbuf_len > 1 && mbuf[0] == '"') {
2761 make_uppercase(mbuf);
2762 if (HAS_PREFIX(mbuf, "\"STARTTLS\""))
2763 foundit = 1;
2764 }
2765 } while (mbuf_len > 1 && mbuf[0] == '"');
2766 (void)BIO_flush(fbio);
2767 BIO_pop(fbio);
2768 BIO_free(fbio);
2769 if (!foundit)
2770 BIO_printf(bio_err,
2771 "Didn't find STARTTLS in server response,"
2772 " trying anyway...\n");
2773 BIO_printf(sbio, "STARTTLS\r\n");
2774 mbuf_len = BIO_read(sbio, mbuf, BUFSIZZ);
2775 if (mbuf_len < 0) {
2776 BIO_printf(bio_err, "BIO_read failed\n");
2777 goto end;
2778 }
2779 mbuf[mbuf_len] = '\0';
2780 if (mbuf_len < 2) {
2781 BIO_printf(bio_err, "STARTTLS failed: %s", mbuf);
2782 goto shut;
2783 }
2784 /*
2785 * According to RFC 5804 § 2.2, response codes are case-
2786 * insensitive, make it uppercase but preserve the response.
2787 */
2788 strncpy(sbuf, mbuf, 2);
2789 make_uppercase(sbuf);
2790 if (!HAS_PREFIX(sbuf, "OK")) {
2791 BIO_printf(bio_err, "STARTTLS not supported: %s", mbuf);
2792 goto shut;
2793 }
2794 }
2795 break;
2796 case PROTO_LDAP:
2797 {
2798 /* StartTLS Operation according to RFC 4511 */
2799 static char ldap_tls_genconf[] = "asn1=SEQUENCE:LDAPMessage\n"
2800 "[LDAPMessage]\n"
2801 "messageID=INTEGER:1\n"
2802 "extendedReq=EXPLICIT:23A,IMPLICIT:0C,"
2803 "FORMAT:ASCII,OCT:1.3.6.1.4.1.1466.20037\n";
2804 long errline = -1;
2805 char *genstr = NULL;
2806 int result = -1;
2807 ASN1_TYPE *atyp = NULL;
2808 BIO *ldapbio = BIO_new(BIO_s_mem());
2809 CONF *cnf = NCONF_new(NULL);
2810
2811 if (ldapbio == NULL || cnf == NULL) {
2812 BIO_free(ldapbio);
2813 NCONF_free(cnf);
2814 goto end;
2815 }
2816 BIO_puts(ldapbio, ldap_tls_genconf);
2817 if (NCONF_load_bio(cnf, ldapbio, &errline) <= 0) {
2818 BIO_free(ldapbio);
2819 NCONF_free(cnf);
2820 if (errline <= 0) {
2821 BIO_printf(bio_err, "NCONF_load_bio failed\n");
2822 goto end;
2823 } else {
2824 BIO_printf(bio_err, "Error on line %ld\n", errline);
2825 goto end;
2826 }
2827 }
2828 BIO_free(ldapbio);
2829 genstr = NCONF_get_string(cnf, "default", "asn1");
2830 if (genstr == NULL) {
2831 NCONF_free(cnf);
2832 BIO_printf(bio_err, "NCONF_get_string failed\n");
2833 goto end;
2834 }
2835 atyp = ASN1_generate_nconf(genstr, cnf);
2836 if (atyp == NULL) {
2837 NCONF_free(cnf);
2838 BIO_printf(bio_err, "ASN1_generate_nconf failed\n");
2839 goto end;
2840 }
2841 NCONF_free(cnf);
2842
2843 /* Send SSLRequest packet */
2844 BIO_write(sbio, atyp->value.sequence->data,
2845 atyp->value.sequence->length);
2846 (void)BIO_flush(sbio);
2847 ASN1_TYPE_free(atyp);
2848
2849 mbuf_len = BIO_read(sbio, mbuf, BUFSIZZ);
2850 if (mbuf_len < 0) {
2851 BIO_printf(bio_err, "BIO_read failed\n");
2852 goto end;
2853 }
2854 result = ldap_ExtendedResponse_parse(mbuf, mbuf_len);
2855 if (result < 0) {
2856 BIO_printf(bio_err, "ldap_ExtendedResponse_parse failed\n");
2857 goto shut;
2858 } else if (result > 0) {
2859 BIO_printf(bio_err, "STARTTLS failed, LDAP Result Code: %i\n",
2860 result);
2861 goto shut;
2862 }
2863 mbuf_len = 0;
2864 }
2865 break;
2866 }
2867
2868 if (early_data_file != NULL
2869 && ((SSL_get0_session(con) != NULL
2870 && SSL_SESSION_get_max_early_data(SSL_get0_session(con)) > 0)
2871 || (psksess != NULL
2872 && SSL_SESSION_get_max_early_data(psksess) > 0))) {
2873 BIO *edfile = BIO_new_file(early_data_file, "r");
2874 size_t readbytes, writtenbytes;
2875 int finish = 0;
2876
2877 if (edfile == NULL) {
2878 BIO_printf(bio_err, "Cannot open early data file\n");
2879 goto shut;
2880 }
2881
2882 while (!finish) {
2883 if (!BIO_read_ex(edfile, cbuf, BUFSIZZ, &readbytes))
2884 finish = 1;
2885
2886 while (!SSL_write_early_data(con, cbuf, readbytes, &writtenbytes)) {
2887 switch (SSL_get_error(con, 0)) {
2888 case SSL_ERROR_WANT_WRITE:
2889 case SSL_ERROR_WANT_ASYNC:
2890 case SSL_ERROR_WANT_READ:
2891 /* Just keep trying - busy waiting */
2892 continue;
2893 default:
2894 BIO_printf(bio_err, "Error writing early data\n");
2895 BIO_free(edfile);
2896 ERR_print_errors(bio_err);
2897 goto shut;
2898 }
2899 }
2900 }
2901
2902 BIO_free(edfile);
2903 }
2904
2905 user_data_init(&user_data, con, cbuf, BUFSIZZ, cmdmode);
2906 for (;;) {
2907 FD_ZERO(&readfds);
2908 FD_ZERO(&writefds);
2909
2910 if ((isdtls || isquic)
2911 && SSL_get_event_timeout(con, &timeout, &is_infinite)
2912 && !is_infinite)
2913 timeoutp = &timeout;
2914 else
2915 timeoutp = NULL;
2916
2917 if (!SSL_is_init_finished(con) && SSL_total_renegotiations(con) == 0
2918 && SSL_get_key_update_type(con) == SSL_KEY_UPDATE_NONE) {
2919 in_init = 1;
2920 tty_on = 0;
2921 } else {
2922 tty_on = 1;
2923 if (in_init) {
2924 in_init = 0;
2925 if (c_brief) {
2926 BIO_puts(bio_err, "CONNECTION ESTABLISHED\n");
2927 print_ssl_summary(con);
2928 }
2929
2930 print_stuff(bio_c_out, con, full_log);
2931 if (full_log > 0)
2932 full_log--;
2933
2934 if (starttls_proto) {
2935 BIO_write(bio_err, mbuf, mbuf_len);
2936 /* We don't need to know any more */
2937 if (!reconnect)
2938 starttls_proto = PROTO_OFF;
2939 }
2940
2941 if (reconnect) {
2942 reconnect--;
2943 BIO_printf(bio_c_out,
2944 "drop connection and then reconnect\n");
2945 do_ssl_shutdown(con);
2946 SSL_set_connect_state(con);
2947 BIO_closesocket(SSL_get_fd(con));
2948 goto re_start;
2949 }
2950 }
2951 }
2952
2953 if (!write_ssl) {
2954 do {
2955 switch (user_data_process(&user_data, &cbuf_len, &cbuf_off)) {
2956 default:
2957 BIO_printf(bio_err, "ERROR\n");
2958 /* fall through */
2959 case USER_DATA_PROCESS_SHUT:
2960 ret = 0;
2961 goto shut;
2962
2963 case USER_DATA_PROCESS_RESTART:
2964 goto re_start;
2965
2966 case USER_DATA_PROCESS_NO_DATA:
2967 break;
2968
2969 case USER_DATA_PROCESS_CONTINUE:
2970 write_ssl = 1;
2971 break;
2972 }
2973 } while (!write_ssl
2974 && cbuf_len == 0
2975 && user_data_has_data(&user_data));
2976 if (cbuf_len > 0) {
2977 read_tty = 0;
2978 timeout.tv_sec = 0;
2979 timeout.tv_usec = 0;
2980 } else {
2981 read_tty = 1;
2982 }
2983 }
2984
2985 ssl_pending = read_ssl && SSL_has_pending(con);
2986
2987 if (!ssl_pending) {
2988 #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS)
2989 if (tty_on) {
2990 /*
2991 * Note that select() returns when read _would not block_,
2992 * and EOF satisfies that. To avoid a CPU-hogging loop,
2993 * set the flag so we exit.
2994 */
2995 if (read_tty && !at_eof)
2996 openssl_fdset(fileno_stdin(), &readfds);
2997 #if !defined(OPENSSL_SYS_VMS)
2998 if (write_tty)
2999 openssl_fdset(fileno_stdout(), &writefds);
3000 #endif
3001 }
3002
3003 /*
3004 * Note that for QUIC we never actually check FD_ISSET() for the
3005 * underlying network fds. We just rely on select waking up when
3006 * they become readable/writeable and then SSL_handle_events() doing
3007 * the right thing.
3008 */
3009 if ((!isquic && read_ssl)
3010 || (isquic && SSL_net_read_desired(con)))
3011 openssl_fdset(SSL_get_fd(con), &readfds);
3012 if ((!isquic && write_ssl)
3013 || (isquic && (first_loop || SSL_net_write_desired(con))))
3014 openssl_fdset(SSL_get_fd(con), &writefds);
3015 #else
3016 if (!tty_on || !write_tty) {
3017 if ((!isquic && read_ssl)
3018 || (isquic && SSL_net_read_desired(con)))
3019 openssl_fdset(SSL_get_fd(con), &readfds);
3020 if ((!isquic && write_ssl)
3021 || (isquic && (first_loop || SSL_net_write_desired(con))))
3022 openssl_fdset(SSL_get_fd(con), &writefds);
3023 }
3024 #endif
3025
3026 /*
3027 * Note: under VMS with SOCKETSHR the second parameter is
3028 * currently of type (int *) whereas under other systems it is
3029 * (void *) if you don't have a cast it will choke the compiler:
3030 * if you do have a cast then you can either go for (int *) or
3031 * (void *).
3032 */
3033 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
3034 /*
3035 * Under Windows/DOS we make the assumption that we can always
3036 * write to the tty: therefore, if we need to write to the tty we
3037 * just fall through. Otherwise we timeout the select every
3038 * second and see if there are any keypresses. Note: this is a
3039 * hack, in a proper Windows application we wouldn't do this.
3040 */
3041 i = 0;
3042 if (!write_tty) {
3043 if (read_tty) {
3044 tv.tv_sec = 1;
3045 tv.tv_usec = 0;
3046 i = select(width, (void *)&readfds, (void *)&writefds,
3047 NULL, &tv);
3048 if (!i && (!has_stdin_waiting() || !read_tty))
3049 continue;
3050 } else
3051 i = select(width, (void *)&readfds, (void *)&writefds,
3052 NULL, timeoutp);
3053 }
3054 #else
3055 i = select(width, (void *)&readfds, (void *)&writefds,
3056 NULL, timeoutp);
3057 #endif
3058 if (i < 0) {
3059 BIO_printf(bio_err, "bad select %d\n",
3060 get_last_socket_error());
3061 goto shut;
3062 }
3063 }
3064
3065 if (timeoutp != NULL) {
3066 SSL_handle_events(con);
3067 if (isdtls
3068 && !FD_ISSET(SSL_get_fd(con), &readfds)
3069 && !FD_ISSET(SSL_get_fd(con), &writefds))
3070 BIO_printf(bio_err, "TIMEOUT occurred\n");
3071 }
3072
3073 if (!ssl_pending
3074 && ((!isquic && FD_ISSET(SSL_get_fd(con), &writefds))
3075 || (isquic && (cbuf_len > 0 || first_loop)))) {
3076 k = SSL_write(con, &(cbuf[cbuf_off]), (unsigned int)cbuf_len);
3077 switch (SSL_get_error(con, k)) {
3078 case SSL_ERROR_NONE:
3079 cbuf_off += k;
3080 cbuf_len -= k;
3081 if (k <= 0)
3082 goto end;
3083 /* we have done a write(con,NULL,0); */
3084 if (cbuf_len == 0) {
3085 read_tty = 1;
3086 write_ssl = 0;
3087 } else { /* if (cbuf_len > 0) */
3088
3089 read_tty = 0;
3090 write_ssl = 1;
3091 }
3092 break;
3093 case SSL_ERROR_WANT_WRITE:
3094 BIO_printf(bio_c_out, "write W BLOCK\n");
3095 write_ssl = 1;
3096 read_tty = 0;
3097 break;
3098 case SSL_ERROR_WANT_ASYNC:
3099 BIO_printf(bio_c_out, "write A BLOCK\n");
3100 wait_for_async(con);
3101 write_ssl = 1;
3102 read_tty = 0;
3103 break;
3104 case SSL_ERROR_WANT_READ:
3105 BIO_printf(bio_c_out, "write R BLOCK\n");
3106 write_tty = 0;
3107 read_ssl = 1;
3108 write_ssl = 0;
3109 break;
3110 case SSL_ERROR_WANT_X509_LOOKUP:
3111 BIO_printf(bio_c_out, "write X BLOCK\n");
3112 break;
3113 case SSL_ERROR_ZERO_RETURN:
3114 if (cbuf_len != 0) {
3115 BIO_printf(bio_c_out, "shutdown\n");
3116 ret = 0;
3117 goto shut;
3118 } else {
3119 read_tty = 1;
3120 write_ssl = 0;
3121 break;
3122 }
3123
3124 case SSL_ERROR_SYSCALL:
3125 if ((k != 0) || (cbuf_len != 0)) {
3126 int sockerr = get_last_socket_error();
3127
3128 if (!tfo || sockerr != EISCONN) {
3129 BIO_printf(bio_err, "write:errno=%d\n", sockerr);
3130 goto shut;
3131 }
3132 } else {
3133 read_tty = 1;
3134 write_ssl = 0;
3135 }
3136 break;
3137 case SSL_ERROR_WANT_ASYNC_JOB:
3138 /* This shouldn't ever happen in s_client - treat as an error */
3139 case SSL_ERROR_SSL:
3140 ERR_print_errors(bio_err);
3141 goto shut;
3142 }
3143 }
3144 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_VMS)
3145 /* Assume Windows/DOS/BeOS can always write */
3146 else if (!ssl_pending && write_tty)
3147 #else
3148 else if (!ssl_pending && FD_ISSET(fileno_stdout(), &writefds))
3149 #endif
3150 {
3151 #ifdef CHARSET_EBCDIC
3152 ascii2ebcdic(&(sbuf[sbuf_off]), &(sbuf[sbuf_off]), sbuf_len);
3153 #endif
3154 i = raw_write_stdout(&(sbuf[sbuf_off]), sbuf_len);
3155
3156 if (i <= 0) {
3157 BIO_printf(bio_c_out, "DONE\n");
3158 ret = 0;
3159 goto shut;
3160 }
3161
3162 sbuf_len -= i;
3163 sbuf_off += i;
3164 if (sbuf_len <= 0) {
3165 read_ssl = 1;
3166 write_tty = 0;
3167 }
3168 } else if (ssl_pending
3169 || (!isquic && FD_ISSET(SSL_get_fd(con), &readfds))) {
3170 #ifdef RENEG
3171 {
3172 static int iiii;
3173 if (++iiii == 52) {
3174 SSL_renegotiate(con);
3175 iiii = 0;
3176 }
3177 }
3178 #endif
3179 k = SSL_read(con, sbuf, BUFSIZZ);
3180
3181 switch (SSL_get_error(con, k)) {
3182 case SSL_ERROR_NONE:
3183 if (k <= 0)
3184 goto end;
3185 sbuf_off = 0;
3186 sbuf_len = k;
3187
3188 read_ssl = 0;
3189 write_tty = 1;
3190 break;
3191 case SSL_ERROR_WANT_ASYNC:
3192 BIO_printf(bio_c_out, "read A BLOCK\n");
3193 wait_for_async(con);
3194 write_tty = 0;
3195 read_ssl = 1;
3196 if ((read_tty == 0) && (write_ssl == 0))
3197 write_ssl = 1;
3198 break;
3199 case SSL_ERROR_WANT_WRITE:
3200 BIO_printf(bio_c_out, "read W BLOCK\n");
3201 write_ssl = 1;
3202 read_tty = 0;
3203 break;
3204 case SSL_ERROR_WANT_READ:
3205 BIO_printf(bio_c_out, "read R BLOCK\n");
3206 write_tty = 0;
3207 read_ssl = 1;
3208 if ((read_tty == 0) && (write_ssl == 0))
3209 write_ssl = 1;
3210 break;
3211 case SSL_ERROR_WANT_X509_LOOKUP:
3212 BIO_printf(bio_c_out, "read X BLOCK\n");
3213 break;
3214 case SSL_ERROR_SYSCALL:
3215 ret = get_last_socket_error();
3216 if (c_brief)
3217 BIO_puts(bio_err, "CONNECTION CLOSED BY SERVER\n");
3218 else
3219 BIO_printf(bio_err, "read:errno=%d\n", ret);
3220 goto shut;
3221 case SSL_ERROR_ZERO_RETURN:
3222 BIO_printf(bio_c_out, "closed\n");
3223 ret = 0;
3224 goto shut;
3225 case SSL_ERROR_WANT_ASYNC_JOB:
3226 /* This shouldn't ever happen in s_client. Treat as an error */
3227 case SSL_ERROR_SSL:
3228 ERR_print_errors(bio_err);
3229 goto shut;
3230 }
3231 }
3232
3233 /* don't wait for client input in the non-interactive mode */
3234 else if (nointeractive) {
3235 ret = 0;
3236 goto shut;
3237 }
3238
3239 /* OPENSSL_SYS_MSDOS includes OPENSSL_SYS_WINDOWS */
3240 #if defined(OPENSSL_SYS_MSDOS)
3241 else if (has_stdin_waiting())
3242 #else
3243 else if (FD_ISSET(fileno_stdin(), &readfds))
3244 #endif
3245 {
3246 if (crlf) {
3247 int j, lf_num;
3248
3249 i = raw_read_stdin(cbuf, BUFSIZZ / 2);
3250 lf_num = 0;
3251 /* both loops are skipped when i <= 0 */
3252 for (j = 0; j < i; j++)
3253 if (cbuf[j] == '\n')
3254 lf_num++;
3255 for (j = i - 1; j >= 0; j--) {
3256 cbuf[j + lf_num] = cbuf[j];
3257 if (cbuf[j] == '\n') {
3258 lf_num--;
3259 i++;
3260 cbuf[j + lf_num] = '\r';
3261 }
3262 }
3263 assert(lf_num == 0);
3264 } else
3265 i = raw_read_stdin(cbuf, BUFSIZZ);
3266 #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS)
3267 if (i == 0)
3268 at_eof = 1;
3269 #endif
3270
3271 if (!c_ign_eof && i <= 0) {
3272 BIO_printf(bio_err, "DONE\n");
3273 ret = 0;
3274 goto shut;
3275 }
3276
3277 if (i > 0 && !user_data_add(&user_data, i)) {
3278 ret = 0;
3279 goto shut;
3280 }
3281 read_tty = 0;
3282 }
3283 first_loop = 0;
3284 }
3285
3286 shut:
3287 if (in_init)
3288 print_stuff(bio_c_out, con, full_log);
3289 do_ssl_shutdown(con);
3290
3291 /*
3292 * If we ended with an alert being sent, but still with data in the
3293 * network buffer to be read, then calling BIO_closesocket() will
3294 * result in a TCP-RST being sent. On some platforms (notably
3295 * Windows) then this will result in the peer immediately abandoning
3296 * the connection including any buffered alert data before it has
3297 * had a chance to be read. Shutting down the sending side first,
3298 * and then closing the socket sends TCP-FIN first followed by
3299 * TCP-RST. This seems to allow the peer to read the alert data.
3300 */
3301 shutdown(SSL_get_fd(con), 1); /* SHUT_WR */
3302 /*
3303 * We just said we have nothing else to say, but it doesn't mean that
3304 * the other side has nothing. It's even recommended to consume incoming
3305 * data. [In testing context this ensures that alerts are passed on...]
3306 */
3307 timeout.tv_sec = 0;
3308 timeout.tv_usec = 500000; /* some extreme round-trip */
3309 do {
3310 FD_ZERO(&readfds);
3311 openssl_fdset(sock, &readfds);
3312 } while (select(sock + 1, &readfds, NULL, NULL, &timeout) > 0
3313 && BIO_read(sbio, sbuf, BUFSIZZ) > 0);
3314
3315 BIO_closesocket(SSL_get_fd(con));
3316 end:
3317 if (con != NULL) {
3318 if (prexit != 0)
3319 print_stuff(bio_c_out, con, 1);
3320 SSL_free(con);
3321 }
3322 SSL_SESSION_free(psksess);
3323 #if !defined(OPENSSL_NO_NEXTPROTONEG)
3324 OPENSSL_free(next_proto.data);
3325 #endif
3326 SSL_CTX_free(ctx);
3327 set_keylog_file(NULL, NULL);
3328 X509_free(cert);
3329 sk_X509_CRL_pop_free(crls, X509_CRL_free);
3330 EVP_PKEY_free(key);
3331 OSSL_STACK_OF_X509_free(chain);
3332 OPENSSL_free(pass);
3333 #ifndef OPENSSL_NO_SRP
3334 OPENSSL_free(srp_arg.srppassin);
3335 #endif
3336 OPENSSL_free(sname_alloc);
3337 BIO_ADDR_free(peer_addr);
3338 OPENSSL_free(connectstr);
3339 OPENSSL_free(bindstr);
3340 OPENSSL_free(bindhost);
3341 OPENSSL_free(bindport);
3342 OPENSSL_free(host);
3343 OPENSSL_free(port);
3344 OPENSSL_free(thost);
3345 OPENSSL_free(tport);
3346 X509_VERIFY_PARAM_free(vpm);
3347 ssl_excert_free(exc);
3348 sk_OPENSSL_STRING_free(ssl_args);
3349 sk_OPENSSL_STRING_free(dane_tlsa_rrset);
3350 SSL_CONF_CTX_free(cctx);
3351 OPENSSL_clear_free(cbuf, BUFSIZZ);
3352 OPENSSL_clear_free(sbuf, BUFSIZZ);
3353 OPENSSL_clear_free(mbuf, BUFSIZZ);
3354 clear_free(proxypass);
3355 release_engine(e);
3356 BIO_free(bio_c_out);
3357 bio_c_out = NULL;
3358 BIO_free(bio_c_msg);
3359 bio_c_msg = NULL;
3360 return ret;
3361 }
3362
print_stuff(BIO * bio,SSL * s,int full)3363 static void print_stuff(BIO *bio, SSL *s, int full)
3364 {
3365 X509 *peer = NULL;
3366 STACK_OF(X509) *sk;
3367 const SSL_CIPHER *c;
3368 EVP_PKEY *public_key;
3369 int i, istls13 = (SSL_version(s) == TLS1_3_VERSION);
3370 long verify_result;
3371 #ifndef OPENSSL_NO_COMP
3372 const COMP_METHOD *comp, *expansion;
3373 #endif
3374 unsigned char *exportedkeymat;
3375 #ifndef OPENSSL_NO_CT
3376 const SSL_CTX *ctx = SSL_get_SSL_CTX(s);
3377 #endif
3378
3379 if (full) {
3380 int got_a_chain = 0;
3381
3382 sk = SSL_get_peer_cert_chain(s);
3383 if (sk != NULL) {
3384 got_a_chain = 1;
3385
3386 BIO_printf(bio, "---\nCertificate chain\n");
3387 for (i = 0; i < sk_X509_num(sk); i++) {
3388 BIO_printf(bio, "%2d s:", i);
3389 X509_NAME_print_ex(bio, X509_get_subject_name(sk_X509_value(sk, i)), 0, get_nameopt());
3390 BIO_puts(bio, "\n");
3391 BIO_printf(bio, " i:");
3392 X509_NAME_print_ex(bio, X509_get_issuer_name(sk_X509_value(sk, i)), 0, get_nameopt());
3393 BIO_puts(bio, "\n");
3394 public_key = X509_get_pubkey(sk_X509_value(sk, i));
3395 if (public_key != NULL) {
3396 BIO_printf(bio, " a:PKEY: %s, %d (bit); sigalg: %s\n",
3397 OBJ_nid2sn(EVP_PKEY_get_base_id(public_key)),
3398 EVP_PKEY_get_bits(public_key),
3399 OBJ_nid2sn(X509_get_signature_nid(sk_X509_value(sk, i))));
3400 EVP_PKEY_free(public_key);
3401 }
3402 BIO_printf(bio, " v:NotBefore: ");
3403 ASN1_TIME_print(bio, X509_get0_notBefore(sk_X509_value(sk, i)));
3404 BIO_printf(bio, "; NotAfter: ");
3405 ASN1_TIME_print(bio, X509_get0_notAfter(sk_X509_value(sk, i)));
3406 BIO_puts(bio, "\n");
3407 if (c_showcerts)
3408 PEM_write_bio_X509(bio, sk_X509_value(sk, i));
3409 }
3410 }
3411
3412 BIO_printf(bio, "---\n");
3413 peer = SSL_get0_peer_certificate(s);
3414 if (peer != NULL) {
3415 BIO_printf(bio, "Server certificate\n");
3416
3417 /* Redundant if we showed the whole chain */
3418 if (!(c_showcerts && got_a_chain))
3419 PEM_write_bio_X509(bio, peer);
3420 dump_cert_text(bio, peer);
3421 } else {
3422 BIO_printf(bio, "no peer certificate available\n");
3423 }
3424
3425 /* Only display RPK information if configured */
3426 if (SSL_get_negotiated_client_cert_type(s) == TLSEXT_cert_type_rpk)
3427 BIO_printf(bio, "Client-to-server raw public key negotiated\n");
3428 if (SSL_get_negotiated_server_cert_type(s) == TLSEXT_cert_type_rpk)
3429 BIO_printf(bio, "Server-to-client raw public key negotiated\n");
3430 if (enable_server_rpk) {
3431 EVP_PKEY *peer_rpk = SSL_get0_peer_rpk(s);
3432
3433 if (peer_rpk != NULL) {
3434 BIO_printf(bio, "Server raw public key\n");
3435 EVP_PKEY_print_public(bio, peer_rpk, 2, NULL);
3436 } else {
3437 BIO_printf(bio, "no peer rpk available\n");
3438 }
3439 }
3440
3441 print_ca_names(bio, s);
3442
3443 ssl_print_sigalgs(bio, s);
3444 ssl_print_tmp_key(bio, s);
3445
3446 #ifndef OPENSSL_NO_CT
3447 /*
3448 * When the SSL session is anonymous, or resumed via an abbreviated
3449 * handshake, no SCTs are provided as part of the handshake. While in
3450 * a resumed session SCTs may be present in the session's certificate,
3451 * no callbacks are invoked to revalidate these, and in any case that
3452 * set of SCTs may be incomplete. Thus it makes little sense to
3453 * attempt to display SCTs from a resumed session's certificate, and of
3454 * course none are associated with an anonymous peer.
3455 */
3456 if (peer != NULL && !SSL_session_reused(s) && SSL_ct_is_enabled(s)) {
3457 const STACK_OF(SCT) *scts = SSL_get0_peer_scts(s);
3458 int sct_count = scts != NULL ? sk_SCT_num(scts) : 0;
3459
3460 BIO_printf(bio, "---\nSCTs present (%i)\n", sct_count);
3461 if (sct_count > 0) {
3462 const CTLOG_STORE *log_store = SSL_CTX_get0_ctlog_store(ctx);
3463
3464 BIO_printf(bio, "---\n");
3465 for (i = 0; i < sct_count; ++i) {
3466 SCT *sct = sk_SCT_value(scts, i);
3467
3468 BIO_printf(bio, "SCT validation status: %s\n",
3469 SCT_validation_status_string(sct));
3470 SCT_print(sct, bio, 0, log_store);
3471 if (i < sct_count - 1)
3472 BIO_printf(bio, "\n---\n");
3473 }
3474 BIO_printf(bio, "\n");
3475 }
3476 }
3477 #endif
3478
3479 BIO_printf(bio,
3480 "---\nSSL handshake has read %ju bytes "
3481 "and written %ju bytes\n",
3482 BIO_number_read(SSL_get_rbio(s)),
3483 BIO_number_written(SSL_get_wbio(s)));
3484 }
3485 print_verify_detail(s, bio);
3486 BIO_printf(bio, (SSL_session_reused(s) ? "---\nReused, " : "---\nNew, "));
3487 c = SSL_get_current_cipher(s);
3488 BIO_printf(bio, "%s, Cipher is %s\n",
3489 SSL_CIPHER_get_version(c), SSL_CIPHER_get_name(c));
3490 BIO_printf(bio, "Protocol: %s\n", SSL_get_version(s));
3491 if (peer != NULL) {
3492 EVP_PKEY *pktmp;
3493
3494 pktmp = X509_get0_pubkey(peer);
3495 BIO_printf(bio, "Server public key is %d bit\n",
3496 EVP_PKEY_get_bits(pktmp));
3497 }
3498
3499 ssl_print_secure_renegotiation_notes(bio, s);
3500
3501 #ifndef OPENSSL_NO_COMP
3502 comp = SSL_get_current_compression(s);
3503 expansion = SSL_get_current_expansion(s);
3504 BIO_printf(bio, "Compression: %s\n",
3505 comp ? SSL_COMP_get_name(comp) : "NONE");
3506 BIO_printf(bio, "Expansion: %s\n",
3507 expansion ? SSL_COMP_get_name(expansion) : "NONE");
3508 #endif
3509 #ifndef OPENSSL_NO_KTLS
3510 if (BIO_get_ktls_send(SSL_get_wbio(s)))
3511 BIO_printf(bio_err, "Using Kernel TLS for sending\n");
3512 if (BIO_get_ktls_recv(SSL_get_rbio(s)))
3513 BIO_printf(bio_err, "Using Kernel TLS for receiving\n");
3514 #endif
3515
3516 if (OSSL_TRACE_ENABLED(TLS)) {
3517 /* Print out local port of connection: useful for debugging */
3518 int sock;
3519 union BIO_sock_info_u info;
3520
3521 sock = SSL_get_fd(s);
3522 if ((info.addr = BIO_ADDR_new()) != NULL
3523 && BIO_sock_info(sock, BIO_SOCK_INFO_ADDRESS, &info)) {
3524 BIO_printf(bio_c_out, "LOCAL PORT is %u\n",
3525 ntohs(BIO_ADDR_rawport(info.addr)));
3526 }
3527 BIO_ADDR_free(info.addr);
3528 }
3529
3530 #if !defined(OPENSSL_NO_NEXTPROTONEG)
3531 if (next_proto.status != -1) {
3532 const unsigned char *proto;
3533 unsigned int proto_len;
3534 SSL_get0_next_proto_negotiated(s, &proto, &proto_len);
3535 BIO_printf(bio, "Next protocol: (%d) ", next_proto.status);
3536 BIO_write(bio, proto, proto_len);
3537 BIO_write(bio, "\n", 1);
3538 }
3539 #endif
3540 {
3541 const unsigned char *proto;
3542 unsigned int proto_len;
3543 SSL_get0_alpn_selected(s, &proto, &proto_len);
3544 if (proto_len > 0) {
3545 BIO_printf(bio, "ALPN protocol: ");
3546 BIO_write(bio, proto, proto_len);
3547 BIO_write(bio, "\n", 1);
3548 } else
3549 BIO_printf(bio, "No ALPN negotiated\n");
3550 }
3551
3552 #ifndef OPENSSL_NO_SRTP
3553 {
3554 SRTP_PROTECTION_PROFILE *srtp_profile =
3555 SSL_get_selected_srtp_profile(s);
3556
3557 if (srtp_profile)
3558 BIO_printf(bio, "SRTP Extension negotiated, profile=%s\n",
3559 srtp_profile->name);
3560 }
3561 #endif
3562
3563 if (istls13) {
3564 switch (SSL_get_early_data_status(s)) {
3565 case SSL_EARLY_DATA_NOT_SENT:
3566 BIO_printf(bio, "Early data was not sent\n");
3567 break;
3568
3569 case SSL_EARLY_DATA_REJECTED:
3570 BIO_printf(bio, "Early data was rejected\n");
3571 break;
3572
3573 case SSL_EARLY_DATA_ACCEPTED:
3574 BIO_printf(bio, "Early data was accepted\n");
3575 break;
3576
3577 }
3578
3579 /*
3580 * We also print the verify results when we dump session information,
3581 * but in TLSv1.3 we may not get that right away (or at all) depending
3582 * on when we get a NewSessionTicket. Therefore, we print it now as well.
3583 */
3584 verify_result = SSL_get_verify_result(s);
3585 BIO_printf(bio, "Verify return code: %ld (%s)\n", verify_result,
3586 X509_verify_cert_error_string(verify_result));
3587 } else {
3588 /* In TLSv1.3 we do this on arrival of a NewSessionTicket */
3589 SSL_SESSION_print(bio, SSL_get_session(s));
3590 }
3591
3592 if (SSL_get_session(s) != NULL && keymatexportlabel != NULL) {
3593 BIO_printf(bio, "Keying material exporter:\n");
3594 BIO_printf(bio, " Label: '%s'\n", keymatexportlabel);
3595 BIO_printf(bio, " Length: %i bytes\n", keymatexportlen);
3596 exportedkeymat = app_malloc(keymatexportlen, "export key");
3597 if (SSL_export_keying_material(s, exportedkeymat,
3598 keymatexportlen,
3599 keymatexportlabel,
3600 strlen(keymatexportlabel),
3601 NULL, 0, 0) <= 0) {
3602 BIO_printf(bio, " Error\n");
3603 } else {
3604 BIO_printf(bio, " Keying material: ");
3605 for (i = 0; i < keymatexportlen; i++)
3606 BIO_printf(bio, "%02X", exportedkeymat[i]);
3607 BIO_printf(bio, "\n");
3608 }
3609 OPENSSL_free(exportedkeymat);
3610 }
3611 BIO_printf(bio, "---\n");
3612 /* flush, or debugging output gets mixed with http response */
3613 (void)BIO_flush(bio);
3614 }
3615
3616 # ifndef OPENSSL_NO_OCSP
ocsp_resp_cb(SSL * s,void * arg)3617 static int ocsp_resp_cb(SSL *s, void *arg)
3618 {
3619 const unsigned char *p;
3620 int len;
3621 OCSP_RESPONSE *rsp;
3622 len = SSL_get_tlsext_status_ocsp_resp(s, &p);
3623 BIO_puts(arg, "OCSP response: ");
3624 if (p == NULL) {
3625 BIO_puts(arg, "no response sent\n");
3626 return 1;
3627 }
3628 rsp = d2i_OCSP_RESPONSE(NULL, &p, len);
3629 if (rsp == NULL) {
3630 BIO_puts(arg, "response parse error\n");
3631 BIO_dump_indent(arg, (char *)p, len, 4);
3632 return 0;
3633 }
3634 BIO_puts(arg, "\n======================================\n");
3635 OCSP_RESPONSE_print(arg, rsp, 0);
3636 BIO_puts(arg, "======================================\n");
3637 OCSP_RESPONSE_free(rsp);
3638 return 1;
3639 }
3640 # endif
3641
ldap_ExtendedResponse_parse(const char * buf,long rem)3642 static int ldap_ExtendedResponse_parse(const char *buf, long rem)
3643 {
3644 const unsigned char *cur, *end;
3645 long len;
3646 int tag, xclass, inf, ret = -1;
3647
3648 cur = (const unsigned char *)buf;
3649 end = cur + rem;
3650
3651 /*
3652 * From RFC 4511:
3653 *
3654 * LDAPMessage ::= SEQUENCE {
3655 * messageID MessageID,
3656 * protocolOp CHOICE {
3657 * ...
3658 * extendedResp ExtendedResponse,
3659 * ... },
3660 * controls [0] Controls OPTIONAL }
3661 *
3662 * ExtendedResponse ::= [APPLICATION 24] SEQUENCE {
3663 * COMPONENTS OF LDAPResult,
3664 * responseName [10] LDAPOID OPTIONAL,
3665 * responseValue [11] OCTET STRING OPTIONAL }
3666 *
3667 * LDAPResult ::= SEQUENCE {
3668 * resultCode ENUMERATED {
3669 * success (0),
3670 * ...
3671 * other (80),
3672 * ... },
3673 * matchedDN LDAPDN,
3674 * diagnosticMessage LDAPString,
3675 * referral [3] Referral OPTIONAL }
3676 */
3677
3678 /* pull SEQUENCE */
3679 inf = ASN1_get_object(&cur, &len, &tag, &xclass, rem);
3680 if (inf != V_ASN1_CONSTRUCTED || tag != V_ASN1_SEQUENCE ||
3681 (rem = end - cur, len > rem)) {
3682 BIO_printf(bio_err, "Unexpected LDAP response\n");
3683 goto end;
3684 }
3685
3686 rem = len; /* ensure that we don't overstep the SEQUENCE */
3687
3688 /* pull MessageID */
3689 inf = ASN1_get_object(&cur, &len, &tag, &xclass, rem);
3690 if (inf != V_ASN1_UNIVERSAL || tag != V_ASN1_INTEGER ||
3691 (rem = end - cur, len > rem)) {
3692 BIO_printf(bio_err, "No MessageID\n");
3693 goto end;
3694 }
3695
3696 cur += len; /* shall we check for MessageId match or just skip? */
3697
3698 /* pull [APPLICATION 24] */
3699 rem = end - cur;
3700 inf = ASN1_get_object(&cur, &len, &tag, &xclass, rem);
3701 if (inf != V_ASN1_CONSTRUCTED || xclass != V_ASN1_APPLICATION ||
3702 tag != 24) {
3703 BIO_printf(bio_err, "Not ExtendedResponse\n");
3704 goto end;
3705 }
3706
3707 /* pull resultCode */
3708 rem = end - cur;
3709 inf = ASN1_get_object(&cur, &len, &tag, &xclass, rem);
3710 if (inf != V_ASN1_UNIVERSAL || tag != V_ASN1_ENUMERATED || len == 0 ||
3711 (rem = end - cur, len > rem)) {
3712 BIO_printf(bio_err, "Not LDAPResult\n");
3713 goto end;
3714 }
3715
3716 /* len should always be one, but just in case... */
3717 for (ret = 0, inf = 0; inf < len; inf++) {
3718 ret <<= 8;
3719 ret |= cur[inf];
3720 }
3721 /* There is more data, but we don't care... */
3722 end:
3723 return ret;
3724 }
3725
3726 /*
3727 * Host dNS Name verifier: used for checking that the hostname is in dNS format
3728 * before setting it as SNI
3729 */
is_dNS_name(const char * host)3730 static int is_dNS_name(const char *host)
3731 {
3732 const size_t MAX_LABEL_LENGTH = 63;
3733 size_t i;
3734 int isdnsname = 0;
3735 size_t length = strlen(host);
3736 size_t label_length = 0;
3737 int all_numeric = 1;
3738
3739 /*
3740 * Deviation from strict DNS name syntax, also check names with '_'
3741 * Check DNS name syntax, any '-' or '.' must be internal,
3742 * and on either side of each '.' we can't have a '-' or '.'.
3743 *
3744 * If the name has just one label, we don't consider it a DNS name.
3745 */
3746 for (i = 0; i < length && label_length < MAX_LABEL_LENGTH; ++i) {
3747 char c = host[i];
3748
3749 if ((c >= 'a' && c <= 'z')
3750 || (c >= 'A' && c <= 'Z')
3751 || c == '_') {
3752 label_length += 1;
3753 all_numeric = 0;
3754 continue;
3755 }
3756
3757 if (c >= '0' && c <= '9') {
3758 label_length += 1;
3759 continue;
3760 }
3761
3762 /* Dot and hyphen cannot be first or last. */
3763 if (i > 0 && i < length - 1) {
3764 if (c == '-') {
3765 label_length += 1;
3766 continue;
3767 }
3768 /*
3769 * Next to a dot the preceding and following characters must not be
3770 * another dot or a hyphen. Otherwise, record that the name is
3771 * plausible, since it has two or more labels.
3772 */
3773 if (c == '.'
3774 && host[i + 1] != '.'
3775 && host[i - 1] != '-'
3776 && host[i + 1] != '-') {
3777 label_length = 0;
3778 isdnsname = 1;
3779 continue;
3780 }
3781 }
3782 isdnsname = 0;
3783 break;
3784 }
3785
3786 /* dNS name must not be all numeric and labels must be shorter than 64 characters. */
3787 isdnsname &= !all_numeric && !(label_length == MAX_LABEL_LENGTH);
3788
3789 return isdnsname;
3790 }
3791
user_data_init(struct user_data_st * user_data,SSL * con,char * buf,size_t bufmax,int mode)3792 static void user_data_init(struct user_data_st *user_data, SSL *con, char *buf,
3793 size_t bufmax, int mode)
3794 {
3795 user_data->con = con;
3796 user_data->buf = buf;
3797 user_data->bufmax = bufmax;
3798 user_data->buflen = 0;
3799 user_data->bufoff = 0;
3800 user_data->mode = mode;
3801 user_data->isfin = 0;
3802 }
3803
user_data_add(struct user_data_st * user_data,size_t i)3804 static int user_data_add(struct user_data_st *user_data, size_t i)
3805 {
3806 if (user_data->buflen != 0 || i > user_data->bufmax)
3807 return 0;
3808
3809 user_data->buflen = i;
3810 user_data->bufoff = 0;
3811
3812 return 1;
3813 }
3814
3815 #define USER_COMMAND_HELP 0
3816 #define USER_COMMAND_QUIT 1
3817 #define USER_COMMAND_RECONNECT 2
3818 #define USER_COMMAND_RENEGOTIATE 3
3819 #define USER_COMMAND_KEY_UPDATE 4
3820 #define USER_COMMAND_FIN 5
3821
user_data_execute(struct user_data_st * user_data,int cmd,char * arg)3822 static int user_data_execute(struct user_data_st *user_data, int cmd, char *arg)
3823 {
3824 switch (cmd) {
3825 case USER_COMMAND_HELP:
3826 /* This only ever occurs in advanced mode, so just emit advanced help */
3827 BIO_printf(bio_err, "Enter text to send to the peer followed by <enter>\n");
3828 BIO_printf(bio_err, "To issue a command insert {cmd} or {cmd:arg} anywhere in the text\n");
3829 BIO_printf(bio_err, "Entering {{ will send { to the peer\n");
3830 BIO_printf(bio_err, "The following commands are available\n");
3831 BIO_printf(bio_err, " {help}: Get this help text\n");
3832 BIO_printf(bio_err, " {quit}: Close the connection to the peer\n");
3833 BIO_printf(bio_err, " {reconnect}: Reconnect to the peer\n");
3834 if (SSL_is_quic(user_data->con)) {
3835 BIO_printf(bio_err, " {fin}: Send FIN on the stream. No further writing is possible\n");
3836 } else if(SSL_version(user_data->con) == TLS1_3_VERSION) {
3837 BIO_printf(bio_err, " {keyup:req|noreq}: Send a Key Update message\n");
3838 BIO_printf(bio_err, " Arguments:\n");
3839 BIO_printf(bio_err, " req = peer update requested (default)\n");
3840 BIO_printf(bio_err, " noreq = peer update not requested\n");
3841 } else {
3842 BIO_printf(bio_err, " {reneg}: Attempt to renegotiate\n");
3843 }
3844 BIO_printf(bio_err, "\n");
3845 return USER_DATA_PROCESS_NO_DATA;
3846
3847 case USER_COMMAND_QUIT:
3848 BIO_printf(bio_err, "DONE\n");
3849 return USER_DATA_PROCESS_SHUT;
3850
3851 case USER_COMMAND_RECONNECT:
3852 BIO_printf(bio_err, "RECONNECTING\n");
3853 do_ssl_shutdown(user_data->con);
3854 SSL_set_connect_state(user_data->con);
3855 BIO_closesocket(SSL_get_fd(user_data->con));
3856 return USER_DATA_PROCESS_RESTART;
3857
3858 case USER_COMMAND_RENEGOTIATE:
3859 BIO_printf(bio_err, "RENEGOTIATING\n");
3860 if (!SSL_renegotiate(user_data->con))
3861 break;
3862 return USER_DATA_PROCESS_CONTINUE;
3863
3864 case USER_COMMAND_KEY_UPDATE: {
3865 int updatetype;
3866
3867 if (OPENSSL_strcasecmp(arg, "req") == 0)
3868 updatetype = SSL_KEY_UPDATE_REQUESTED;
3869 else if (OPENSSL_strcasecmp(arg, "noreq") == 0)
3870 updatetype = SSL_KEY_UPDATE_NOT_REQUESTED;
3871 else
3872 return USER_DATA_PROCESS_BAD_ARGUMENT;
3873 BIO_printf(bio_err, "KEYUPDATE\n");
3874 if (!SSL_key_update(user_data->con, updatetype))
3875 break;
3876 return USER_DATA_PROCESS_CONTINUE;
3877 }
3878
3879 case USER_COMMAND_FIN:
3880 if (!SSL_stream_conclude(user_data->con, 0))
3881 break;
3882 user_data->isfin = 1;
3883 return USER_DATA_PROCESS_NO_DATA;
3884
3885 default:
3886 break;
3887 }
3888
3889 BIO_printf(bio_err, "ERROR\n");
3890 ERR_print_errors(bio_err);
3891
3892 return USER_DATA_PROCESS_SHUT;
3893 }
3894
user_data_process(struct user_data_st * user_data,size_t * len,size_t * off)3895 static int user_data_process(struct user_data_st *user_data, size_t *len,
3896 size_t *off)
3897 {
3898 char *buf_start = user_data->buf + user_data->bufoff;
3899 size_t outlen = user_data->buflen;
3900
3901 if (user_data->buflen == 0) {
3902 *len = 0;
3903 *off = 0;
3904 return USER_DATA_PROCESS_NO_DATA;
3905 }
3906
3907 if (user_data->mode == USER_DATA_MODE_BASIC) {
3908 switch (buf_start[0]) {
3909 case 'Q':
3910 user_data->buflen = user_data->bufoff = *len = *off = 0;
3911 return user_data_execute(user_data, USER_COMMAND_QUIT, NULL);
3912
3913 case 'C':
3914 user_data->buflen = user_data->bufoff = *len = *off = 0;
3915 return user_data_execute(user_data, USER_COMMAND_RECONNECT, NULL);
3916
3917 case 'R':
3918 user_data->buflen = user_data->bufoff = *len = *off = 0;
3919 return user_data_execute(user_data, USER_COMMAND_RENEGOTIATE, NULL);
3920
3921 case 'K':
3922 case 'k':
3923 user_data->buflen = user_data->bufoff = *len = *off = 0;
3924 return user_data_execute(user_data, USER_COMMAND_KEY_UPDATE,
3925 buf_start[0] == 'K' ? "req" : "noreq");
3926 default:
3927 break;
3928 }
3929 } else if (user_data->mode == USER_DATA_MODE_ADVANCED) {
3930 char *cmd_start = buf_start;
3931
3932 cmd_start[outlen] = '\0';
3933 for (;;) {
3934 cmd_start = strchr(cmd_start, '{');
3935 if (cmd_start == buf_start && *(cmd_start + 1) == '{') {
3936 /* The "{" is escaped, so skip it */
3937 cmd_start += 2;
3938 buf_start++;
3939 user_data->bufoff++;
3940 user_data->buflen--;
3941 outlen--;
3942 continue;
3943 }
3944 break;
3945 }
3946
3947 if (cmd_start == buf_start) {
3948 /* Command detected */
3949 char *cmd_end = strchr(cmd_start, '}');
3950 char *arg_start;
3951 int cmd = -1, ret = USER_DATA_PROCESS_NO_DATA;
3952 size_t oldoff;
3953
3954 if (cmd_end == NULL) {
3955 /* Malformed command */
3956 cmd_start[outlen - 1] = '\0';
3957 BIO_printf(bio_err,
3958 "ERROR PROCESSING COMMAND. REST OF LINE IGNORED: %s\n",
3959 cmd_start);
3960 user_data->buflen = user_data->bufoff = *len = *off = 0;
3961 return USER_DATA_PROCESS_NO_DATA;
3962 }
3963 *cmd_end = '\0';
3964 arg_start = strchr(cmd_start, ':');
3965 if (arg_start != NULL) {
3966 *arg_start = '\0';
3967 arg_start++;
3968 }
3969 /* Skip over the { */
3970 cmd_start++;
3971 /*
3972 * Now we have cmd_start pointing to a NUL terminated string for
3973 * the command, and arg_start either being NULL or pointing to a
3974 * NUL terminated string for the argument.
3975 */
3976 if (OPENSSL_strcasecmp(cmd_start, "help") == 0) {
3977 cmd = USER_COMMAND_HELP;
3978 } else if (OPENSSL_strcasecmp(cmd_start, "quit") == 0) {
3979 cmd = USER_COMMAND_QUIT;
3980 } else if (OPENSSL_strcasecmp(cmd_start, "reconnect") == 0) {
3981 cmd = USER_COMMAND_RECONNECT;
3982 } else if(SSL_is_quic(user_data->con)) {
3983 if (OPENSSL_strcasecmp(cmd_start, "fin") == 0)
3984 cmd = USER_COMMAND_FIN;
3985 } if (SSL_version(user_data->con) == TLS1_3_VERSION) {
3986 if (OPENSSL_strcasecmp(cmd_start, "keyup") == 0) {
3987 cmd = USER_COMMAND_KEY_UPDATE;
3988 if (arg_start == NULL)
3989 arg_start = "req";
3990 }
3991 } else {
3992 /* (D)TLSv1.2 or below */
3993 if (OPENSSL_strcasecmp(cmd_start, "reneg") == 0)
3994 cmd = USER_COMMAND_RENEGOTIATE;
3995 }
3996 if (cmd == -1) {
3997 BIO_printf(bio_err, "UNRECOGNISED COMMAND (IGNORED): %s\n",
3998 cmd_start);
3999 } else {
4000 ret = user_data_execute(user_data, cmd, arg_start);
4001 if (ret == USER_DATA_PROCESS_BAD_ARGUMENT) {
4002 BIO_printf(bio_err, "BAD ARGUMENT (COMMAND IGNORED): %s\n",
4003 arg_start);
4004 ret = USER_DATA_PROCESS_NO_DATA;
4005 }
4006 }
4007 oldoff = user_data->bufoff;
4008 user_data->bufoff = (cmd_end - user_data->buf) + 1;
4009 user_data->buflen -= user_data->bufoff - oldoff;
4010 if (user_data->buf + 1 == cmd_start
4011 && user_data->buflen == 1
4012 && user_data->buf[user_data->bufoff] == '\n') {
4013 /*
4014 * This command was the only thing on the whole line. We
4015 * suppress the final `\n`
4016 */
4017 user_data->bufoff = 0;
4018 user_data->buflen = 0;
4019 }
4020 *len = *off = 0;
4021 return ret;
4022 } else if (cmd_start != NULL) {
4023 /*
4024 * There is a command on this line, but its not at the start. Output
4025 * the start of the line, and we'll process the command next time
4026 * we call this function
4027 */
4028 outlen = cmd_start - buf_start;
4029 }
4030 }
4031
4032 if (user_data->isfin) {
4033 user_data->buflen = user_data->bufoff = *len = *off = 0;
4034 return USER_DATA_PROCESS_NO_DATA;
4035 }
4036
4037 #ifdef CHARSET_EBCDIC
4038 ebcdic2ascii(buf_start, buf_start, outlen);
4039 #endif
4040 *len = outlen;
4041 *off = user_data->bufoff;
4042 user_data->buflen -= outlen;
4043 if (user_data->buflen == 0)
4044 user_data->bufoff = 0;
4045 else
4046 user_data->bufoff += outlen;
4047 return USER_DATA_PROCESS_CONTINUE;
4048 }
4049
user_data_has_data(struct user_data_st * user_data)4050 static int user_data_has_data(struct user_data_st *user_data)
4051 {
4052 return user_data->buflen > 0;
4053 }
4054 #endif /* OPENSSL_NO_SOCK */
4055
