1 /* $OpenBSD: s_server.c,v 1.54 2021/12/06 11:06:58 tb Exp $ */
2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
3 * All rights reserved.
4 *
5 * This package is an SSL implementation written
6 * by Eric Young (eay@cryptsoft.com).
7 * The implementation was written so as to conform with Netscapes SSL.
8 *
9 * This library is free for commercial and non-commercial use as long as
10 * the following conditions are aheared to. The following conditions
11 * apply to all code found in this distribution, be it the RC4, RSA,
12 * lhash, DES, etc., code; not just the SSL code. The SSL documentation
13 * included with this distribution is covered by the same copyright terms
14 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
15 *
16 * Copyright remains Eric Young's, and as such any Copyright notices in
17 * the code are not to be removed.
18 * If this package is used in a product, Eric Young should be given attribution
19 * as the author of the parts of the library used.
20 * This can be in the form of a textual message at program startup or
21 * in documentation (online or textual) provided with the package.
22 *
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
25 * are met:
26 * 1. Redistributions of source code must retain the copyright
27 * notice, this list of conditions and the following disclaimer.
28 * 2. Redistributions in binary form must reproduce the above copyright
29 * notice, this list of conditions and the following disclaimer in the
30 * documentation and/or other materials provided with the distribution.
31 * 3. All advertising materials mentioning features or use of this software
32 * must display the following acknowledgement:
33 * "This product includes cryptographic software written by
34 * Eric Young (eay@cryptsoft.com)"
35 * The word 'cryptographic' can be left out if the rouines from the library
36 * being used are not cryptographic related :-).
37 * 4. If you include any Windows specific code (or a derivative thereof) from
38 * the apps directory (application code) you must include an acknowledgement:
39 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
40 *
41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
44 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
51 * SUCH DAMAGE.
52 *
53 * The licence and distribution terms for any publically available version or
54 * derivative of this code cannot be changed. i.e. this code cannot simply be
55 * copied and put under another distribution licence
56 * [including the GNU Public Licence.]
57 */
58 /* ====================================================================
59 * Copyright (c) 1998-2006 The OpenSSL Project. All rights reserved.
60 *
61 * Redistribution and use in source and binary forms, with or without
62 * modification, are permitted provided that the following conditions
63 * are met:
64 *
65 * 1. Redistributions of source code must retain the above copyright
66 * notice, this list of conditions and the following disclaimer.
67 *
68 * 2. Redistributions in binary form must reproduce the above copyright
69 * notice, this list of conditions and the following disclaimer in
70 * the documentation and/or other materials provided with the
71 * distribution.
72 *
73 * 3. All advertising materials mentioning features or use of this
74 * software must display the following acknowledgment:
75 * "This product includes software developed by the OpenSSL Project
76 * for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
77 *
78 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
79 * endorse or promote products derived from this software without
80 * prior written permission. For written permission, please contact
81 * openssl-core@openssl.org.
82 *
83 * 5. Products derived from this software may not be called "OpenSSL"
84 * nor may "OpenSSL" appear in their names without prior written
85 * permission of the OpenSSL Project.
86 *
87 * 6. Redistributions of any form whatsoever must retain the following
88 * acknowledgment:
89 * "This product includes software developed by the OpenSSL Project
90 * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
91 *
92 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
93 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
94 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
95 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
96 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
97 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
98 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
99 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
100 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
101 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
102 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
103 * OF THE POSSIBILITY OF SUCH DAMAGE.
104 * ====================================================================
105 *
106 * This product includes cryptographic software written by Eric Young
107 * (eay@cryptsoft.com). This product includes software written by Tim
108 * Hudson (tjh@cryptsoft.com).
109 *
110 */
111 /* ====================================================================
112 * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
113 * ECC cipher suite support in OpenSSL originally developed by
114 * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project.
115 */
116 /* ====================================================================
117 * Copyright 2005 Nokia. All rights reserved.
118 *
119 * The portions of the attached software ("Contribution") is developed by
120 * Nokia Corporation and is licensed pursuant to the OpenSSL open source
121 * license.
122 *
123 * The Contribution, originally written by Mika Kousa and Pasi Eronen of
124 * Nokia Corporation, consists of the "PSK" (Pre-Shared Key) ciphersuites
125 * support (see RFC 4279) to OpenSSL.
126 *
127 * No patent licenses or other rights except those expressly stated in
128 * the OpenSSL open source license shall be deemed granted or received
129 * expressly, by implication, estoppel, or otherwise.
130 *
131 * No assurances are provided by Nokia that the Contribution does not
132 * infringe the patent or other intellectual property rights of any third
133 * party or that the license provides you with all the necessary rights
134 * to make use of the Contribution.
135 *
136 * THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. IN
137 * ADDITION TO THE DISCLAIMERS INCLUDED IN THE LICENSE, NOKIA
138 * SPECIFICALLY DISCLAIMS ANY LIABILITY FOR CLAIMS BROUGHT BY YOU OR ANY
139 * OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR
140 * OTHERWISE.
141 */
142
143 /* Until the key-gen callbacks are modified to use newer prototypes, we allow
144 * deprecated functions for openssl-internal code */
145 #ifdef OPENSSL_NO_DEPRECATED
146 #undef OPENSSL_NO_DEPRECATED
147 #endif
148
149 #include <sys/types.h>
150 #include <sys/socket.h>
151
152 #include <assert.h>
153 #include <ctype.h>
154 #include <stdio.h>
155 #include <stdlib.h>
156 #include <limits.h>
157 #include <string.h>
158 #include <unistd.h>
159 #include <poll.h>
160
161 #include "apps.h"
162
163 #include <openssl/bn.h>
164 #include <openssl/err.h>
165 #include <openssl/lhash.h>
166 #include <openssl/ocsp.h>
167 #include <openssl/pem.h>
168 #include <openssl/ssl.h>
169 #include <openssl/x509.h>
170
171 #ifndef OPENSSL_NO_DH
172 #include <openssl/dh.h>
173 #endif
174
175 #include <openssl/rsa.h>
176
177 #include "s_apps.h"
178 #include "timeouts.h"
179
180 static void s_server_init(void);
181 static void sv_usage(void);
182 static void print_stats(BIO *bp, SSL_CTX *ctx);
183 static int sv_body(int s, unsigned char *context);
184 static void close_accept_socket(void);
185 static int init_ssl_connection(SSL *s);
186 #ifndef OPENSSL_NO_DH
187 static DH *load_dh_param(const char *dhfile);
188 #endif
189 static int www_body(int s, unsigned char *context);
190 static int generate_session_id(const SSL *ssl, unsigned char *id,
191 unsigned int *id_len);
192 static int ssl_servername_cb(SSL *s, int *ad, void *arg);
193 static int cert_status_cb(SSL * s, void *arg);
194 static int alpn_cb(SSL *s, const unsigned char **out, unsigned char *outlen,
195 const unsigned char *in, unsigned int inlen, void *arg);
196 /* static int load_CA(SSL_CTX *ctx, char *file);*/
197
198 #define BUFSIZZ 16*1024
199 static int bufsize = BUFSIZZ;
200 static int accept_socket = -1;
201
202 #define TEST_CERT "server.pem"
203 #define TEST_CERT2 "server2.pem"
204
205 static int s_server_session_id_context = 1; /* anything will do */
206 static SSL_CTX *ctx = NULL;
207 static SSL_CTX *ctx2 = NULL;
208 static BIO *bio_s_out = NULL;
209
210 static int local_argc = 0;
211 static char **local_argv;
212
213 /* This is a context that we pass to callbacks */
214 typedef struct tlsextctx_st {
215 char *servername;
216 BIO *biodebug;
217 int extension_error;
218 } tlsextctx;
219
220 /* Structure passed to cert status callback */
221 typedef struct tlsextstatusctx_st {
222 /* Default responder to use */
223 char *host, *path, *port;
224 int use_ssl;
225 int timeout;
226 BIO *err;
227 int verbose;
228 } tlsextstatusctx;
229
230 /* This the context that we pass to alpn_cb */
231 typedef struct tlsextalpnctx_st {
232 unsigned char *data;
233 unsigned short len;
234 } tlsextalpnctx;
235
236 static struct {
237 char *alpn_in;
238 char *npn_in; /* Ignored. */
239 int bugs;
240 char *CAfile;
241 char *CApath;
242 #ifndef OPENSSL_NO_DTLS
243 int cert_chain;
244 #endif
245 char *cert_file;
246 char *cert_file2;
247 int cert_format;
248 char *cipher;
249 unsigned char *context;
250 int crlf;
251 char *dcert_file;
252 int dcert_format;
253 int debug;
254 char *dhfile;
255 char *dkey_file;
256 int dkey_format;
257 char *dpassarg;
258 int enable_timeouts;
259 const char *errstr;
260 char *groups_in;
261 char *key_file;
262 char *key_file2;
263 int key_format;
264 char *keymatexportlabel;
265 int keymatexportlen;
266 uint16_t max_version;
267 uint16_t min_version;
268 const SSL_METHOD *meth;
269 int msg;
270 int naccept;
271 char *named_curve;
272 int nbio;
273 int nbio_test;
274 int no_cache;
275 int nocert;
276 int no_dhe;
277 int no_ecdhe;
278 int no_tmp_rsa; /* No-op. */
279 int off;
280 char *passarg;
281 short port;
282 int quiet;
283 int server_verify;
284 char *session_id_prefix;
285 long socket_mtu;
286 int socket_type;
287 #ifndef OPENSSL_NO_SRTP
288 char *srtp_profiles;
289 #endif
290 int state;
291 tlsextstatusctx tlscstatp;
292 tlsextctx tlsextcbp;
293 int tlsextdebug;
294 int tlsextstatus;
295 X509_VERIFY_PARAM *vpm;
296 int www;
297 } s_server_config;
298
299 static int
s_server_opt_context(char * arg)300 s_server_opt_context(char *arg)
301 {
302 s_server_config.context = (unsigned char *) arg;
303 return (0);
304 }
305
306 static int
s_server_opt_keymatexportlen(char * arg)307 s_server_opt_keymatexportlen(char *arg)
308 {
309 s_server_config.keymatexportlen = strtonum(arg, 1, INT_MAX,
310 &s_server_config.errstr);
311 if (s_server_config.errstr != NULL) {
312 BIO_printf(bio_err, "invalid argument %s: %s\n",
313 arg, s_server_config.errstr);
314 return (1);
315 }
316 return (0);
317 }
318
319 #ifndef OPENSSL_NO_DTLS
320 static int
s_server_opt_mtu(char * arg)321 s_server_opt_mtu(char *arg)
322 {
323 s_server_config.socket_mtu = strtonum(arg, 0, LONG_MAX,
324 &s_server_config.errstr);
325 if (s_server_config.errstr != NULL) {
326 BIO_printf(bio_err, "invalid argument %s: %s\n",
327 arg, s_server_config.errstr);
328 return (1);
329 }
330 return (0);
331 }
332 #endif
333
334 #ifndef OPENSSL_NO_DTLS
335 static int
s_server_opt_protocol_version_dtls(void)336 s_server_opt_protocol_version_dtls(void)
337 {
338 s_server_config.meth = DTLS_server_method();
339 s_server_config.socket_type = SOCK_DGRAM;
340 return (0);
341 }
342 #endif
343
344 #ifndef OPENSSL_NO_DTLS1
345 static int
s_server_opt_protocol_version_dtls1(void)346 s_server_opt_protocol_version_dtls1(void)
347 {
348 s_server_config.meth = DTLS_server_method();
349 s_server_config.min_version = DTLS1_VERSION;
350 s_server_config.max_version = DTLS1_VERSION;
351 s_server_config.socket_type = SOCK_DGRAM;
352 return (0);
353 }
354 #endif
355
356 #ifndef OPENSSL_NO_DTLS1_2
357 static int
s_server_opt_protocol_version_dtls1_2(void)358 s_server_opt_protocol_version_dtls1_2(void)
359 {
360 s_server_config.meth = DTLS_server_method();
361 s_server_config.min_version = DTLS1_2_VERSION;
362 s_server_config.max_version = DTLS1_2_VERSION;
363 s_server_config.socket_type = SOCK_DGRAM;
364 return (0);
365 }
366 #endif
367
368 static int
s_server_opt_protocol_version_tls1(void)369 s_server_opt_protocol_version_tls1(void)
370 {
371 s_server_config.min_version = TLS1_VERSION;
372 s_server_config.max_version = TLS1_VERSION;
373 return (0);
374 }
375
376 static int
s_server_opt_protocol_version_tls1_1(void)377 s_server_opt_protocol_version_tls1_1(void)
378 {
379 s_server_config.min_version = TLS1_1_VERSION;
380 s_server_config.max_version = TLS1_1_VERSION;
381 return (0);
382 }
383
384 static int
s_server_opt_protocol_version_tls1_2(void)385 s_server_opt_protocol_version_tls1_2(void)
386 {
387 s_server_config.min_version = TLS1_2_VERSION;
388 s_server_config.max_version = TLS1_2_VERSION;
389 return (0);
390 }
391
392 static int
s_server_opt_protocol_version_tls1_3(void)393 s_server_opt_protocol_version_tls1_3(void)
394 {
395 s_server_config.min_version = TLS1_3_VERSION;
396 s_server_config.max_version = TLS1_3_VERSION;
397 return (0);
398 }
399
400 static int
s_server_opt_nbio_test(void)401 s_server_opt_nbio_test(void)
402 {
403 s_server_config.nbio = 1;
404 s_server_config.nbio_test = 1;
405 return (0);
406 }
407
408 static int
s_server_opt_port(char * arg)409 s_server_opt_port(char *arg)
410 {
411 if (!extract_port(arg, &s_server_config.port))
412 return (1);
413 return (0);
414 }
415
416 static int
s_server_opt_status_timeout(char * arg)417 s_server_opt_status_timeout(char *arg)
418 {
419 s_server_config.tlsextstatus = 1;
420 s_server_config.tlscstatp.timeout = strtonum(arg, 0, INT_MAX,
421 &s_server_config.errstr);
422 if (s_server_config.errstr != NULL) {
423 BIO_printf(bio_err, "invalid argument %s: %s\n",
424 arg, s_server_config.errstr);
425 return (1);
426 }
427 return (0);
428 }
429
430 static int
s_server_opt_status_url(char * arg)431 s_server_opt_status_url(char *arg)
432 {
433 s_server_config.tlsextstatus = 1;
434 if (!OCSP_parse_url(arg, &s_server_config.tlscstatp.host,
435 &s_server_config.tlscstatp.port, &s_server_config.tlscstatp.path,
436 &s_server_config.tlscstatp.use_ssl)) {
437 BIO_printf(bio_err, "Error parsing URL\n");
438 return (1);
439 }
440 return (0);
441 }
442
443 static int
s_server_opt_status_verbose(void)444 s_server_opt_status_verbose(void)
445 {
446 s_server_config.tlsextstatus = 1;
447 s_server_config.tlscstatp.verbose = 1;
448 return (0);
449 }
450
451 static int
s_server_opt_verify(char * arg)452 s_server_opt_verify(char *arg)
453 {
454 s_server_config.server_verify = SSL_VERIFY_PEER |
455 SSL_VERIFY_CLIENT_ONCE;
456 verify_depth = strtonum(arg, 0, INT_MAX, &s_server_config.errstr);
457 if (s_server_config.errstr != NULL) {
458 BIO_printf(bio_err, "invalid argument %s: %s\n",
459 arg, s_server_config.errstr);
460 return (1);
461 }
462 BIO_printf(bio_err, "verify depth is %d\n", verify_depth);
463 return (0);
464 }
465
466 static int
s_server_opt_verify_fail(char * arg)467 s_server_opt_verify_fail(char *arg)
468 {
469 s_server_config.server_verify = SSL_VERIFY_PEER |
470 SSL_VERIFY_FAIL_IF_NO_PEER_CERT | SSL_VERIFY_CLIENT_ONCE;
471 verify_depth = strtonum(arg, 0, INT_MAX, &s_server_config.errstr);
472 if (s_server_config.errstr != NULL) {
473 BIO_printf(bio_err, "invalid argument %s: %s\n",
474 arg, s_server_config.errstr);
475 return (1);
476 }
477 BIO_printf(bio_err, "verify depth is %d, must return a certificate\n",
478 verify_depth);
479 return (0);
480 }
481
482 static int
s_server_opt_verify_param(int argc,char ** argv,int * argsused)483 s_server_opt_verify_param(int argc, char **argv, int *argsused)
484 {
485 char **pargs = argv;
486 int pargc = argc;
487 int badarg = 0;
488
489 if (!args_verify(&pargs, &pargc, &badarg, bio_err,
490 &s_server_config.vpm)) {
491 BIO_printf(bio_err, "unknown option %s\n", *argv);
492 return (1);
493 }
494 if (badarg)
495 return (1);
496
497 *argsused = argc - pargc;
498 return (0);
499 }
500
501 static const struct option s_server_options[] = {
502 {
503 .name = "4",
504 .type = OPTION_DISCARD,
505 },
506 {
507 .name = "6",
508 .type = OPTION_DISCARD,
509 },
510 {
511 .name = "accept",
512 .argname = "port",
513 .desc = "Port to accept on (default is 4433)",
514 .type = OPTION_ARG_FUNC,
515 .opt.argfunc = s_server_opt_port,
516 },
517 {
518 .name = "alpn",
519 .argname = "protocols",
520 .desc = "Set the advertised protocols for the ALPN extension"
521 " (comma-separated list)",
522 .type = OPTION_ARG,
523 .opt.arg = &s_server_config.alpn_in,
524 },
525 {
526 .name = "bugs",
527 .desc = "Turn on SSL bug compatibility",
528 .type = OPTION_FLAG,
529 .opt.flag = &s_server_config.bugs,
530 },
531 {
532 .name = "CAfile",
533 .argname = "file",
534 .desc = "PEM format file of CA certificates",
535 .type = OPTION_ARG,
536 .opt.arg = &s_server_config.CAfile,
537 },
538 {
539 .name = "CApath",
540 .argname = "directory",
541 .desc = "PEM format directory of CA certificates",
542 .type = OPTION_ARG,
543 .opt.arg = &s_server_config.CApath,
544 },
545 {
546 .name = "cert",
547 .argname = "file",
548 .desc = "Certificate file to use\n"
549 "(default is " TEST_CERT ")",
550 .type = OPTION_ARG,
551 .opt.arg = &s_server_config.cert_file,
552 },
553 {
554 .name = "cert2",
555 .argname = "file",
556 .desc = "Certificate file to use for servername\n"
557 "(default is " TEST_CERT2 ")",
558 .type = OPTION_ARG,
559 .opt.arg = &s_server_config.cert_file2,
560 },
561 {
562 .name = "certform",
563 .argname = "fmt",
564 .desc = "Certificate format (PEM or DER) PEM default",
565 .type = OPTION_ARG_FORMAT,
566 .opt.value = &s_server_config.cert_format,
567 },
568 #ifndef OPENSSL_NO_DTLS
569 {
570 .name = "chain",
571 .type = OPTION_FLAG,
572 .opt.flag = &s_server_config.cert_chain,
573 },
574 #endif
575 {
576 .name = "cipher",
577 .argname = "list",
578 .desc = "List of ciphers to enable (see `openssl ciphers`)",
579 .type = OPTION_ARG,
580 .opt.arg = &s_server_config.cipher,
581 },
582 {
583 .name = "context",
584 .argname = "id",
585 .desc = "Set session ID context",
586 .type = OPTION_ARG_FUNC,
587 .opt.argfunc = s_server_opt_context,
588 },
589 {
590 .name = "crlf",
591 .desc = "Convert LF from terminal into CRLF",
592 .type = OPTION_FLAG,
593 .opt.flag = &s_server_config.crlf,
594 },
595 {
596 .name = "dcert",
597 .argname = "file",
598 .desc = "Second certificate file to use (usually for DSA)",
599 .type = OPTION_ARG,
600 .opt.arg = &s_server_config.dcert_file,
601 },
602 {
603 .name = "dcertform",
604 .argname = "fmt",
605 .desc = "Second certificate format (PEM or DER) PEM default",
606 .type = OPTION_ARG_FORMAT,
607 .opt.value = &s_server_config.dcert_format,
608 },
609 {
610 .name = "debug",
611 .desc = "Print more output",
612 .type = OPTION_FLAG,
613 .opt.flag = &s_server_config.debug,
614 },
615 {
616 .name = "dhparam",
617 .argname = "file",
618 .desc = "DH parameter file to use, in cert file if not specified",
619 .type = OPTION_ARG,
620 .opt.arg = &s_server_config.dhfile,
621 },
622 {
623 .name = "dkey",
624 .argname = "file",
625 .desc = "Second private key file to use (usually for DSA)",
626 .type = OPTION_ARG,
627 .opt.arg = &s_server_config.dkey_file,
628 },
629 {
630 .name = "dkeyform",
631 .argname = "fmt",
632 .desc = "Second key format (PEM or DER) PEM default",
633 .type = OPTION_ARG_FORMAT,
634 .opt.value = &s_server_config.dkey_format,
635 },
636 {
637 .name = "dpass",
638 .argname = "arg",
639 .desc = "Second private key file pass phrase source",
640 .type = OPTION_ARG,
641 .opt.arg = &s_server_config.dpassarg,
642 },
643 #ifndef OPENSSL_NO_DTLS
644 {
645 .name = "dtls",
646 .desc = "Use any version of DTLS",
647 .type = OPTION_FUNC,
648 .opt.func = s_server_opt_protocol_version_dtls,
649 },
650 #endif
651 #ifndef OPENSSL_NO_DTLS1
652 {
653 .name = "dtls1",
654 .desc = "Just use DTLSv1",
655 .type = OPTION_FUNC,
656 .opt.func = s_server_opt_protocol_version_dtls1,
657 },
658 #endif
659 #ifndef OPENSSL_NO_DTLS1_2
660 {
661 .name = "dtls1_2",
662 .desc = "Just use DTLSv1.2",
663 .type = OPTION_FUNC,
664 .opt.func = s_server_opt_protocol_version_dtls1_2,
665 },
666 #endif
667 {
668 .name = "groups",
669 .argname = "list",
670 .desc = "Specify EC groups (colon-separated list)",
671 .type = OPTION_ARG,
672 .opt.arg = &s_server_config.groups_in,
673 },
674 {
675 .name = "HTTP",
676 .desc = "Respond to a 'GET /<path> HTTP/1.0' with file ./<path>",
677 .type = OPTION_VALUE,
678 .opt.value = &s_server_config.www,
679 .value = 3,
680 },
681 {
682 .name = "id_prefix",
683 .argname = "arg",
684 .desc = "Generate SSL/TLS session IDs prefixed by 'arg'",
685 .type = OPTION_ARG,
686 .opt.arg = &s_server_config.session_id_prefix,
687 },
688 {
689 .name = "key",
690 .argname = "file",
691 .desc = "Private Key file to use, in cert file if\n"
692 "not specified (default is " TEST_CERT ")",
693 .type = OPTION_ARG,
694 .opt.arg = &s_server_config.key_file,
695 },
696 {
697 .name = "key2",
698 .argname = "file",
699 .desc = "Private Key file to use for servername, in cert file if\n"
700 "not specified (default is " TEST_CERT2 ")",
701 .type = OPTION_ARG,
702 .opt.arg = &s_server_config.key_file2,
703 },
704 {
705 .name = "keyform",
706 .argname = "fmt",
707 .desc = "Key format (PEM or DER) PEM default",
708 .type = OPTION_ARG_FORMAT,
709 .opt.value = &s_server_config.key_format,
710 },
711 {
712 .name = "keymatexport",
713 .argname = "label",
714 .desc = "Export keying material using label",
715 .type = OPTION_ARG,
716 .opt.arg = &s_server_config.keymatexportlabel,
717 },
718 {
719 .name = "keymatexportlen",
720 .argname = "len",
721 .desc = "Export len bytes of keying material (default 20)",
722 .type = OPTION_ARG_FUNC,
723 .opt.argfunc = s_server_opt_keymatexportlen,
724 },
725 {
726 .name = "legacy_renegotiation",
727 .type = OPTION_DISCARD,
728 },
729 {
730 .name = "msg",
731 .desc = "Show protocol messages",
732 .type = OPTION_FLAG,
733 .opt.flag = &s_server_config.msg,
734 },
735 #ifndef OPENSSL_NO_DTLS
736 {
737 .name = "mtu",
738 .argname = "mtu",
739 .desc = "Set link layer MTU",
740 .type = OPTION_ARG_FUNC,
741 .opt.argfunc = s_server_opt_mtu,
742 },
743 #endif
744 {
745 .name = "naccept",
746 .argname = "num",
747 .desc = "Terminate after num connections",
748 .type = OPTION_ARG_INT,
749 .opt.value = &s_server_config.naccept
750 },
751 {
752 .name = "named_curve",
753 .argname = "arg",
754 .type = OPTION_ARG,
755 .opt.arg = &s_server_config.named_curve,
756 },
757 {
758 .name = "nbio",
759 .desc = "Run with non-blocking I/O",
760 .type = OPTION_FLAG,
761 .opt.flag = &s_server_config.nbio,
762 },
763 {
764 .name = "nbio_test",
765 .desc = "Test with the non-blocking test bio",
766 .type = OPTION_FUNC,
767 .opt.func = s_server_opt_nbio_test,
768 },
769 {
770 .name = "nextprotoneg",
771 .argname = "arg",
772 .type = OPTION_ARG,
773 .opt.arg = &s_server_config.npn_in, /* Ignored. */
774 },
775 {
776 .name = "no_cache",
777 .desc = "Disable session cache",
778 .type = OPTION_FLAG,
779 .opt.flag = &s_server_config.no_cache,
780 },
781 {
782 .name = "no_comp",
783 .desc = "Disable SSL/TLS compression",
784 .type = OPTION_VALUE_OR,
785 .opt.value = &s_server_config.off,
786 .value = SSL_OP_NO_COMPRESSION,
787 },
788 {
789 .name = "no_dhe",
790 .desc = "Disable ephemeral DH",
791 .type = OPTION_FLAG,
792 .opt.flag = &s_server_config.no_dhe,
793 },
794 {
795 .name = "no_ecdhe",
796 .desc = "Disable ephemeral ECDH",
797 .type = OPTION_FLAG,
798 .opt.flag = &s_server_config.no_ecdhe,
799 },
800 {
801 .name = "no_ticket",
802 .desc = "Disable use of RFC4507bis session tickets",
803 .type = OPTION_VALUE_OR,
804 .opt.value = &s_server_config.off,
805 .value = SSL_OP_NO_TICKET,
806 },
807 {
808 .name = "no_ssl2",
809 .type = OPTION_VALUE_OR,
810 .opt.value = &s_server_config.off,
811 .value = SSL_OP_NO_SSLv2,
812 },
813 {
814 .name = "no_ssl3",
815 .type = OPTION_VALUE_OR,
816 .opt.value = &s_server_config.off,
817 .value = SSL_OP_NO_SSLv3,
818 },
819 {
820 .name = "no_tls1",
821 .desc = "Just disable TLSv1",
822 .type = OPTION_VALUE_OR,
823 .opt.value = &s_server_config.off,
824 .value = SSL_OP_NO_TLSv1,
825 },
826 {
827 .name = "no_tls1_1",
828 .desc = "Just disable TLSv1.1",
829 .type = OPTION_VALUE_OR,
830 .opt.value = &s_server_config.off,
831 .value = SSL_OP_NO_TLSv1_1,
832 },
833 {
834 .name = "no_tls1_2",
835 .desc = "Just disable TLSv1.2",
836 .type = OPTION_VALUE_OR,
837 .opt.value = &s_server_config.off,
838 .value = SSL_OP_NO_TLSv1_2,
839 },
840 {
841 .name = "no_tls1_3",
842 .desc = "Just disable TLSv1.3",
843 .type = OPTION_VALUE_OR,
844 .opt.value = &s_server_config.off,
845 .value = SSL_OP_NO_TLSv1_3,
846 },
847 {
848 .name = "no_tmp_rsa",
849 .type = OPTION_DISCARD,
850 },
851 {
852 .name = "nocert",
853 .desc = "Don't use any certificates (Anon-DH)",
854 .type = OPTION_FLAG,
855 .opt.flag = &s_server_config.nocert,
856 },
857 {
858 .name = "pass",
859 .argname = "arg",
860 .desc = "Private key file pass phrase source",
861 .type = OPTION_ARG,
862 .opt.arg = &s_server_config.passarg,
863 },
864 {
865 .name = "port",
866 .argname = "port",
867 .type = OPTION_ARG_FUNC,
868 .opt.argfunc = s_server_opt_port,
869 },
870 {
871 .name = "quiet",
872 .desc = "Inhibit printing of session and certificate information",
873 .type = OPTION_FLAG,
874 .opt.flag = &s_server_config.quiet,
875 },
876 {
877 .name = "servername",
878 .argname = "name",
879 .desc = "Servername for HostName TLS extension",
880 .type = OPTION_ARG,
881 .opt.arg = &s_server_config.tlsextcbp.servername,
882 },
883 {
884 .name = "servername_fatal",
885 .desc = "On mismatch send fatal alert (default warning alert)",
886 .type = OPTION_VALUE,
887 .opt.value = &s_server_config.tlsextcbp.extension_error,
888 .value = SSL_TLSEXT_ERR_ALERT_FATAL,
889 },
890 {
891 .name = "serverpref",
892 .desc = "Use server's cipher preferences",
893 .type = OPTION_VALUE_OR,
894 .opt.value = &s_server_config.off,
895 .value = SSL_OP_CIPHER_SERVER_PREFERENCE,
896 },
897 {
898 .name = "state",
899 .desc = "Print the SSL states",
900 .type = OPTION_FLAG,
901 .opt.flag = &s_server_config.state,
902 },
903 {
904 .name = "status",
905 .desc = "Respond to certificate status requests",
906 .type = OPTION_FLAG,
907 .opt.flag = &s_server_config.tlsextstatus,
908 },
909 {
910 .name = "status_timeout",
911 .argname = "nsec",
912 .desc = "Status request responder timeout",
913 .type = OPTION_ARG_FUNC,
914 .opt.argfunc = s_server_opt_status_timeout,
915 },
916 {
917 .name = "status_url",
918 .argname = "url",
919 .desc = "Status request fallback URL",
920 .type = OPTION_ARG_FUNC,
921 .opt.argfunc = s_server_opt_status_url,
922 },
923 {
924 .name = "status_verbose",
925 .desc = "Enable status request verbose printout",
926 .type = OPTION_FUNC,
927 .opt.func = s_server_opt_status_verbose,
928 },
929 #ifndef OPENSSL_NO_DTLS
930 {
931 .name = "timeout",
932 .desc = "Enable timeouts",
933 .type = OPTION_FLAG,
934 .opt.flag = &s_server_config.enable_timeouts,
935 },
936 #endif
937 {
938 .name = "tls1",
939 .desc = "Just talk TLSv1",
940 .type = OPTION_FUNC,
941 .opt.func = s_server_opt_protocol_version_tls1,
942 },
943 {
944 .name = "tls1_1",
945 .desc = "Just talk TLSv1.1",
946 .type = OPTION_FUNC,
947 .opt.func = s_server_opt_protocol_version_tls1_1,
948 },
949 {
950 .name = "tls1_2",
951 .desc = "Just talk TLSv1.2",
952 .type = OPTION_FUNC,
953 .opt.func = s_server_opt_protocol_version_tls1_2,
954 },
955 {
956 .name = "tls1_3",
957 .desc = "Just talk TLSv1.3",
958 .type = OPTION_FUNC,
959 .opt.func = s_server_opt_protocol_version_tls1_3,
960 },
961 {
962 .name = "tlsextdebug",
963 .desc = "Hex dump of all TLS extensions received",
964 .type = OPTION_FLAG,
965 .opt.flag = &s_server_config.tlsextdebug,
966 },
967 #ifndef OPENSSL_NO_SRTP
968 {
969 .name = "use_srtp",
970 .argname = "profiles",
971 .desc = "Offer SRTP key management with a colon-separated profile list",
972 .type = OPTION_ARG,
973 .opt.arg = &s_server_config.srtp_profiles,
974 },
975 #endif
976 {
977 .name = "Verify",
978 .argname = "depth",
979 .desc = "Turn on peer certificate verification, must have a cert",
980 .type = OPTION_ARG_FUNC,
981 .opt.argfunc = s_server_opt_verify_fail,
982 },
983 {
984 .name = "verify",
985 .argname = "depth",
986 .desc = "Turn on peer certificate verification",
987 .type = OPTION_ARG_FUNC,
988 .opt.argfunc = s_server_opt_verify,
989 },
990 {
991 .name = "verify_return_error",
992 .desc = "Return verification error",
993 .type = OPTION_FLAG,
994 .opt.flag = &verify_return_error,
995 },
996 {
997 .name = "WWW",
998 .desc = "Respond to a 'GET /<path> HTTP/1.0' with file ./<path>",
999 .type = OPTION_VALUE,
1000 .opt.value = &s_server_config.www,
1001 .value = 2,
1002 },
1003 {
1004 .name = "www",
1005 .desc = "Respond to a 'GET /' with a status page",
1006 .type = OPTION_VALUE,
1007 .opt.value = &s_server_config.www,
1008 .value = 1,
1009 },
1010 {
1011 .name = NULL,
1012 .desc = "",
1013 .type = OPTION_ARGV_FUNC,
1014 .opt.argvfunc = s_server_opt_verify_param,
1015 },
1016 { NULL },
1017 };
1018
1019 static void
s_server_init(void)1020 s_server_init(void)
1021 {
1022 accept_socket = -1;
1023 s_server_config.cipher = NULL;
1024 s_server_config.server_verify = SSL_VERIFY_NONE;
1025 s_server_config.dcert_file = NULL;
1026 s_server_config.dkey_file = NULL;
1027 s_server_config.cert_file = TEST_CERT;
1028 s_server_config.key_file = NULL;
1029 s_server_config.cert_file2 = TEST_CERT2;
1030 s_server_config.key_file2 = NULL;
1031 ctx2 = NULL;
1032 s_server_config.nbio = 0;
1033 s_server_config.nbio_test = 0;
1034 ctx = NULL;
1035 s_server_config.www = 0;
1036
1037 bio_s_out = NULL;
1038 s_server_config.debug = 0;
1039 s_server_config.msg = 0;
1040 s_server_config.quiet = 0;
1041 }
1042
1043 static void
sv_usage(void)1044 sv_usage(void)
1045 {
1046 fprintf(stderr, "usage: s_server "
1047 "[-accept port] [-alpn protocols] [-bugs] [-CAfile file]\n"
1048 " [-CApath directory] [-cert file] [-cert2 file]\n"
1049 " [-certform der | pem] [-cipher cipherlist]\n"
1050 " [-context id] [-crl_check] [-crl_check_all] [-crlf]\n"
1051 " [-dcert file] [-dcertform der | pem] [-debug]\n"
1052 " [-dhparam file] [-dkey file] [-dkeyform der | pem]\n"
1053 " [-dpass arg] [-dtls] [-dtls1] [-dtls1_2] [-groups list] [-HTTP]\n"
1054 " [-id_prefix arg] [-key keyfile] [-key2 keyfile]\n"
1055 " [-keyform der | pem] [-keymatexport label]\n"
1056 " [-keymatexportlen len] [-msg] [-mtu mtu] [-naccept num]\n"
1057 " [-named_curve arg] [-nbio] [-nbio_test] [-no_cache]\n"
1058 " [-no_dhe] [-no_ecdhe] [-no_ticket] [-no_tls1]\n"
1059 " [-no_tls1_1] [-no_tls1_2] [-no_tls1_3] [-no_tmp_rsa]\n"
1060 " [-nocert] [-pass arg] [-quiet] [-servername name]\n"
1061 " [-servername_fatal] [-serverpref] [-state] [-status]\n"
1062 " [-status_timeout nsec] [-status_url url]\n"
1063 " [-status_verbose] [-timeout] [-tls1] [-tls1_1]\n"
1064 " [-tls1_2] [-tls1_3] [-tlsextdebug] [-use_srtp profiles]\n"
1065 " [-Verify depth] [-verify depth] [-verify_return_error]\n"
1066 " [-WWW] [-www]\n");
1067 fprintf(stderr, "\n");
1068 options_usage(s_server_options);
1069 fprintf(stderr, "\n");
1070 }
1071
1072 int
s_server_main(int argc,char * argv[])1073 s_server_main(int argc, char *argv[])
1074 {
1075 int ret = 1;
1076 char *pass = NULL;
1077 char *dpass = NULL;
1078 X509 *s_cert = NULL, *s_dcert = NULL;
1079 EVP_PKEY *s_key = NULL, *s_dkey = NULL;
1080 EVP_PKEY *s_key2 = NULL;
1081 X509 *s_cert2 = NULL;
1082 tlsextalpnctx alpn_ctx = { NULL, 0 };
1083
1084 if (single_execution) {
1085 if (pledge("stdio rpath inet dns tty", NULL) == -1) {
1086 perror("pledge");
1087 exit(1);
1088 }
1089 }
1090
1091 memset(&s_server_config, 0, sizeof(s_server_config));
1092 s_server_config.keymatexportlen = 20;
1093 s_server_config.meth = TLS_server_method();
1094 s_server_config.naccept = -1;
1095 s_server_config.port = PORT;
1096 s_server_config.cert_file = TEST_CERT;
1097 s_server_config.cert_file2 = TEST_CERT2;
1098 s_server_config.cert_format = FORMAT_PEM;
1099 s_server_config.dcert_format = FORMAT_PEM;
1100 s_server_config.dkey_format = FORMAT_PEM;
1101 s_server_config.key_format = FORMAT_PEM;
1102 s_server_config.server_verify = SSL_VERIFY_NONE;
1103 s_server_config.socket_type = SOCK_STREAM;
1104 s_server_config.tlscstatp.timeout = -1;
1105 s_server_config.tlsextcbp.extension_error =
1106 SSL_TLSEXT_ERR_ALERT_WARNING;
1107
1108 local_argc = argc;
1109 local_argv = argv;
1110
1111 s_server_init();
1112
1113 verify_depth = 0;
1114
1115 if (options_parse(argc, argv, s_server_options, NULL, NULL) != 0) {
1116 if (s_server_config.errstr == NULL)
1117 sv_usage();
1118 goto end;
1119 }
1120
1121 if (!app_passwd(bio_err, s_server_config.passarg,
1122 s_server_config.dpassarg, &pass, &dpass)) {
1123 BIO_printf(bio_err, "Error getting password\n");
1124 goto end;
1125 }
1126 if (s_server_config.key_file == NULL)
1127 s_server_config.key_file = s_server_config.cert_file;
1128 if (s_server_config.key_file2 == NULL)
1129 s_server_config.key_file2 = s_server_config.cert_file2;
1130
1131 if (s_server_config.nocert == 0) {
1132 s_key = load_key(bio_err, s_server_config.key_file,
1133 s_server_config.key_format, 0, pass,
1134 "server certificate private key file");
1135 if (!s_key) {
1136 ERR_print_errors(bio_err);
1137 goto end;
1138 }
1139 s_cert = load_cert(bio_err, s_server_config.cert_file,
1140 s_server_config.cert_format,
1141 NULL, "server certificate file");
1142
1143 if (!s_cert) {
1144 ERR_print_errors(bio_err);
1145 goto end;
1146 }
1147 if (s_server_config.tlsextcbp.servername) {
1148 s_key2 = load_key(bio_err, s_server_config.key_file2,
1149 s_server_config.key_format, 0, pass,
1150 "second server certificate private key file");
1151 if (!s_key2) {
1152 ERR_print_errors(bio_err);
1153 goto end;
1154 }
1155 s_cert2 = load_cert(bio_err, s_server_config.cert_file2,
1156 s_server_config.cert_format,
1157 NULL, "second server certificate file");
1158
1159 if (!s_cert2) {
1160 ERR_print_errors(bio_err);
1161 goto end;
1162 }
1163 }
1164 }
1165 alpn_ctx.data = NULL;
1166 if (s_server_config.alpn_in) {
1167 unsigned short len;
1168 alpn_ctx.data = next_protos_parse(&len,
1169 s_server_config.alpn_in);
1170 if (alpn_ctx.data == NULL)
1171 goto end;
1172 alpn_ctx.len = len;
1173 }
1174
1175 if (s_server_config.dcert_file) {
1176
1177 if (s_server_config.dkey_file == NULL)
1178 s_server_config.dkey_file = s_server_config.dcert_file;
1179
1180 s_dkey = load_key(bio_err, s_server_config.dkey_file,
1181 s_server_config.dkey_format,
1182 0, dpass, "second certificate private key file");
1183 if (!s_dkey) {
1184 ERR_print_errors(bio_err);
1185 goto end;
1186 }
1187 s_dcert = load_cert(bio_err, s_server_config.dcert_file,
1188 s_server_config.dcert_format,
1189 NULL, "second server certificate file");
1190
1191 if (!s_dcert) {
1192 ERR_print_errors(bio_err);
1193 goto end;
1194 }
1195 }
1196 if (bio_s_out == NULL) {
1197 if (s_server_config.quiet && !s_server_config.debug &&
1198 !s_server_config.msg) {
1199 bio_s_out = BIO_new(BIO_s_null());
1200 } else {
1201 if (bio_s_out == NULL)
1202 bio_s_out = BIO_new_fp(stdout, BIO_NOCLOSE);
1203 }
1204 }
1205 if (s_server_config.nocert) {
1206 s_server_config.cert_file = NULL;
1207 s_server_config.key_file = NULL;
1208 s_server_config.dcert_file = NULL;
1209 s_server_config.dkey_file = NULL;
1210 s_server_config.cert_file2 = NULL;
1211 s_server_config.key_file2 = NULL;
1212 }
1213 ctx = SSL_CTX_new(s_server_config.meth);
1214 if (ctx == NULL) {
1215 ERR_print_errors(bio_err);
1216 goto end;
1217 }
1218
1219 SSL_CTX_clear_mode(ctx, SSL_MODE_AUTO_RETRY);
1220
1221 if (!SSL_CTX_set_min_proto_version(ctx, s_server_config.min_version))
1222 goto end;
1223 if (!SSL_CTX_set_max_proto_version(ctx, s_server_config.max_version))
1224 goto end;
1225
1226 if (s_server_config.session_id_prefix) {
1227 if (strlen(s_server_config.session_id_prefix) >= 32)
1228 BIO_printf(bio_err,
1229 "warning: id_prefix is too long, only one new session will be possible\n");
1230 else if (strlen(s_server_config.session_id_prefix) >= 16)
1231 BIO_printf(bio_err,
1232 "warning: id_prefix is too long if you use SSLv2\n");
1233 if (!SSL_CTX_set_generate_session_id(ctx, generate_session_id)) {
1234 BIO_printf(bio_err, "error setting 'id_prefix'\n");
1235 ERR_print_errors(bio_err);
1236 goto end;
1237 }
1238 BIO_printf(bio_err, "id_prefix '%s' set.\n",
1239 s_server_config.session_id_prefix);
1240 }
1241 SSL_CTX_set_quiet_shutdown(ctx, 1);
1242 if (s_server_config.bugs)
1243 SSL_CTX_set_options(ctx, SSL_OP_ALL);
1244 SSL_CTX_set_options(ctx, s_server_config.off);
1245
1246 if (s_server_config.state)
1247 SSL_CTX_set_info_callback(ctx, apps_ssl_info_callback);
1248 if (s_server_config.no_cache)
1249 SSL_CTX_set_session_cache_mode(ctx, SSL_SESS_CACHE_OFF);
1250 else
1251 SSL_CTX_sess_set_cache_size(ctx, 128);
1252
1253 #ifndef OPENSSL_NO_SRTP
1254 if (s_server_config.srtp_profiles != NULL)
1255 SSL_CTX_set_tlsext_use_srtp(ctx, s_server_config.srtp_profiles);
1256 #endif
1257
1258 if ((!SSL_CTX_load_verify_locations(ctx, s_server_config.CAfile,
1259 s_server_config.CApath)) ||
1260 (!SSL_CTX_set_default_verify_paths(ctx))) {
1261 /* BIO_printf(bio_err,"X509_load_verify_locations\n"); */
1262 ERR_print_errors(bio_err);
1263 /* goto end; */
1264 }
1265 if (s_server_config.vpm)
1266 SSL_CTX_set1_param(ctx, s_server_config.vpm);
1267
1268 if (s_cert2) {
1269 ctx2 = SSL_CTX_new(s_server_config.meth);
1270 if (ctx2 == NULL) {
1271 ERR_print_errors(bio_err);
1272 goto end;
1273 }
1274
1275 if (!SSL_CTX_set_min_proto_version(ctx2,
1276 s_server_config.min_version))
1277 goto end;
1278 if (!SSL_CTX_set_max_proto_version(ctx2,
1279 s_server_config.max_version))
1280 goto end;
1281 SSL_CTX_clear_mode(ctx2, SSL_MODE_AUTO_RETRY);
1282 }
1283 if (ctx2) {
1284 BIO_printf(bio_s_out, "Setting secondary ctx parameters\n");
1285
1286 if (s_server_config.session_id_prefix) {
1287 if (strlen(s_server_config.session_id_prefix) >= 32)
1288 BIO_printf(bio_err,
1289 "warning: id_prefix is too long, only one new session will be possible\n");
1290 else if (strlen(s_server_config.session_id_prefix) >= 16)
1291 BIO_printf(bio_err,
1292 "warning: id_prefix is too long if you use SSLv2\n");
1293 if (!SSL_CTX_set_generate_session_id(ctx2,
1294 generate_session_id)) {
1295 BIO_printf(bio_err,
1296 "error setting 'id_prefix'\n");
1297 ERR_print_errors(bio_err);
1298 goto end;
1299 }
1300 BIO_printf(bio_err, "id_prefix '%s' set.\n",
1301 s_server_config.session_id_prefix);
1302 }
1303 SSL_CTX_set_quiet_shutdown(ctx2, 1);
1304 if (s_server_config.bugs)
1305 SSL_CTX_set_options(ctx2, SSL_OP_ALL);
1306 SSL_CTX_set_options(ctx2, s_server_config.off);
1307
1308 if (s_server_config.state)
1309 SSL_CTX_set_info_callback(ctx2, apps_ssl_info_callback);
1310
1311 if (s_server_config.no_cache)
1312 SSL_CTX_set_session_cache_mode(ctx2, SSL_SESS_CACHE_OFF);
1313 else
1314 SSL_CTX_sess_set_cache_size(ctx2, 128);
1315
1316 if ((!SSL_CTX_load_verify_locations(ctx2,
1317 s_server_config.CAfile, s_server_config.CApath)) ||
1318 (!SSL_CTX_set_default_verify_paths(ctx2))) {
1319 ERR_print_errors(bio_err);
1320 }
1321 if (s_server_config.vpm)
1322 SSL_CTX_set1_param(ctx2, s_server_config.vpm);
1323 }
1324 if (alpn_ctx.data)
1325 SSL_CTX_set_alpn_select_cb(ctx, alpn_cb, &alpn_ctx);
1326
1327 if (s_server_config.groups_in != NULL) {
1328 if (SSL_CTX_set1_groups_list(ctx, s_server_config.groups_in) != 1) {
1329 BIO_printf(bio_err, "Failed to set groups '%s'\n",
1330 s_server_config.groups_in);
1331 goto end;
1332 }
1333 }
1334
1335 #ifndef OPENSSL_NO_DH
1336 if (!s_server_config.no_dhe) {
1337 DH *dh = NULL;
1338
1339 if (s_server_config.dhfile)
1340 dh = load_dh_param(s_server_config.dhfile);
1341 else if (s_server_config.cert_file)
1342 dh = load_dh_param(s_server_config.cert_file);
1343
1344 if (dh != NULL)
1345 BIO_printf(bio_s_out, "Setting temp DH parameters\n");
1346 else
1347 BIO_printf(bio_s_out, "Using auto DH parameters\n");
1348 (void) BIO_flush(bio_s_out);
1349
1350 if (dh == NULL)
1351 SSL_CTX_set_dh_auto(ctx, 1);
1352 else if (!SSL_CTX_set_tmp_dh(ctx, dh)) {
1353 BIO_printf(bio_err,
1354 "Error setting temp DH parameters\n");
1355 ERR_print_errors(bio_err);
1356 DH_free(dh);
1357 goto end;
1358 }
1359
1360 if (ctx2) {
1361 if (!s_server_config.dhfile) {
1362 DH *dh2 = NULL;
1363
1364 if (s_server_config.cert_file2 != NULL)
1365 dh2 = load_dh_param(
1366 s_server_config.cert_file2);
1367 if (dh2 != NULL) {
1368 BIO_printf(bio_s_out,
1369 "Setting temp DH parameters\n");
1370 (void) BIO_flush(bio_s_out);
1371
1372 DH_free(dh);
1373 dh = dh2;
1374 }
1375 }
1376 if (dh == NULL)
1377 SSL_CTX_set_dh_auto(ctx2, 1);
1378 else if (!SSL_CTX_set_tmp_dh(ctx2, dh)) {
1379 BIO_printf(bio_err,
1380 "Error setting temp DH parameters\n");
1381 ERR_print_errors(bio_err);
1382 DH_free(dh);
1383 goto end;
1384 }
1385 }
1386 DH_free(dh);
1387 }
1388 #endif
1389
1390 if (!s_server_config.no_ecdhe && s_server_config.named_curve != NULL) {
1391 EC_KEY *ecdh = NULL;
1392 int nid;
1393
1394 if ((nid = OBJ_sn2nid(s_server_config.named_curve)) == 0) {
1395 BIO_printf(bio_err, "unknown curve name (%s)\n",
1396 s_server_config.named_curve);
1397 goto end;
1398 }
1399 if ((ecdh = EC_KEY_new_by_curve_name(nid)) == NULL) {
1400 BIO_printf(bio_err, "unable to create curve (%s)\n",
1401 s_server_config.named_curve);
1402 goto end;
1403 }
1404 BIO_printf(bio_s_out, "Setting temp ECDH parameters\n");
1405 (void) BIO_flush(bio_s_out);
1406
1407 SSL_CTX_set_tmp_ecdh(ctx, ecdh);
1408 if (ctx2)
1409 SSL_CTX_set_tmp_ecdh(ctx2, ecdh);
1410 EC_KEY_free(ecdh);
1411 }
1412
1413 if (!set_cert_key_stuff(ctx, s_cert, s_key))
1414 goto end;
1415 if (ctx2 && !set_cert_key_stuff(ctx2, s_cert2, s_key2))
1416 goto end;
1417 if (s_dcert != NULL) {
1418 if (!set_cert_key_stuff(ctx, s_dcert, s_dkey))
1419 goto end;
1420 }
1421
1422 if (s_server_config.cipher != NULL) {
1423 if (!SSL_CTX_set_cipher_list(ctx, s_server_config.cipher)) {
1424 BIO_printf(bio_err, "error setting cipher list\n");
1425 ERR_print_errors(bio_err);
1426 goto end;
1427 }
1428 if (ctx2 && !SSL_CTX_set_cipher_list(ctx2,
1429 s_server_config.cipher)) {
1430 BIO_printf(bio_err, "error setting cipher list\n");
1431 ERR_print_errors(bio_err);
1432 goto end;
1433 }
1434 }
1435 SSL_CTX_set_verify(ctx, s_server_config.server_verify, verify_callback);
1436 SSL_CTX_set_session_id_context(ctx,
1437 (void *) &s_server_session_id_context,
1438 sizeof s_server_session_id_context);
1439
1440 /* Set DTLS cookie generation and verification callbacks */
1441 SSL_CTX_set_cookie_generate_cb(ctx, generate_cookie_callback);
1442 SSL_CTX_set_cookie_verify_cb(ctx, verify_cookie_callback);
1443
1444 if (ctx2) {
1445 SSL_CTX_set_verify(ctx2, s_server_config.server_verify,
1446 verify_callback);
1447 SSL_CTX_set_session_id_context(ctx2,
1448 (void *) &s_server_session_id_context,
1449 sizeof s_server_session_id_context);
1450
1451 s_server_config.tlsextcbp.biodebug = bio_s_out;
1452 SSL_CTX_set_tlsext_servername_callback(ctx2, ssl_servername_cb);
1453 SSL_CTX_set_tlsext_servername_arg(ctx2,
1454 &s_server_config.tlsextcbp);
1455 SSL_CTX_set_tlsext_servername_callback(ctx, ssl_servername_cb);
1456 SSL_CTX_set_tlsext_servername_arg(ctx,
1457 &s_server_config.tlsextcbp);
1458 }
1459
1460 if (s_server_config.CAfile != NULL) {
1461 SSL_CTX_set_client_CA_list(ctx,
1462 SSL_load_client_CA_file(s_server_config.CAfile));
1463 if (ctx2)
1464 SSL_CTX_set_client_CA_list(ctx2,
1465 SSL_load_client_CA_file(s_server_config.CAfile));
1466 }
1467 BIO_printf(bio_s_out, "ACCEPT\n");
1468 (void) BIO_flush(bio_s_out);
1469 if (s_server_config.www)
1470 do_server(s_server_config.port, s_server_config.socket_type,
1471 &accept_socket, www_body, s_server_config.context,
1472 s_server_config.naccept);
1473 else
1474 do_server(s_server_config.port, s_server_config.socket_type,
1475 &accept_socket, sv_body, s_server_config.context,
1476 s_server_config.naccept);
1477 print_stats(bio_s_out, ctx);
1478 ret = 0;
1479 end:
1480 SSL_CTX_free(ctx);
1481 X509_free(s_cert);
1482 X509_free(s_dcert);
1483 EVP_PKEY_free(s_key);
1484 EVP_PKEY_free(s_dkey);
1485 free(pass);
1486 free(dpass);
1487 X509_VERIFY_PARAM_free(s_server_config.vpm);
1488 free(s_server_config.tlscstatp.host);
1489 free(s_server_config.tlscstatp.port);
1490 free(s_server_config.tlscstatp.path);
1491 SSL_CTX_free(ctx2);
1492 X509_free(s_cert2);
1493 EVP_PKEY_free(s_key2);
1494 free(alpn_ctx.data);
1495 if (bio_s_out != NULL) {
1496 BIO_free(bio_s_out);
1497 bio_s_out = NULL;
1498 }
1499
1500 return (ret);
1501 }
1502
1503 static void
print_stats(BIO * bio,SSL_CTX * ssl_ctx)1504 print_stats(BIO *bio, SSL_CTX *ssl_ctx)
1505 {
1506 BIO_printf(bio, "%4ld items in the session cache\n",
1507 SSL_CTX_sess_number(ssl_ctx));
1508 BIO_printf(bio, "%4ld client connects (SSL_connect())\n",
1509 SSL_CTX_sess_connect(ssl_ctx));
1510 BIO_printf(bio, "%4ld client renegotiates (SSL_connect())\n",
1511 SSL_CTX_sess_connect_renegotiate(ssl_ctx));
1512 BIO_printf(bio, "%4ld client connects that finished\n",
1513 SSL_CTX_sess_connect_good(ssl_ctx));
1514 BIO_printf(bio, "%4ld server accepts (SSL_accept())\n",
1515 SSL_CTX_sess_accept(ssl_ctx));
1516 BIO_printf(bio, "%4ld server renegotiates (SSL_accept())\n",
1517 SSL_CTX_sess_accept_renegotiate(ssl_ctx));
1518 BIO_printf(bio, "%4ld server accepts that finished\n",
1519 SSL_CTX_sess_accept_good(ssl_ctx));
1520 BIO_printf(bio, "%4ld session cache hits\n",
1521 SSL_CTX_sess_hits(ssl_ctx));
1522 BIO_printf(bio, "%4ld session cache misses\n",
1523 SSL_CTX_sess_misses(ssl_ctx));
1524 BIO_printf(bio, "%4ld session cache timeouts\n",
1525 SSL_CTX_sess_timeouts(ssl_ctx));
1526 BIO_printf(bio, "%4ld callback cache hits\n",
1527 SSL_CTX_sess_cb_hits(ssl_ctx));
1528 BIO_printf(bio, "%4ld cache full overflows (%ld allowed)\n",
1529 SSL_CTX_sess_cache_full(ssl_ctx),
1530 SSL_CTX_sess_get_cache_size(ssl_ctx));
1531 }
1532
1533 static int
sv_body(int s,unsigned char * context)1534 sv_body(int s, unsigned char *context)
1535 {
1536 char *buf = NULL;
1537 int ret = 1;
1538 int k, i;
1539 unsigned long l;
1540 SSL *con = NULL;
1541 BIO *sbio;
1542 struct timeval timeout;
1543
1544 if ((buf = malloc(bufsize)) == NULL) {
1545 BIO_printf(bio_err, "out of memory\n");
1546 goto err;
1547 }
1548 if (s_server_config.nbio) {
1549 if (!s_server_config.quiet)
1550 BIO_printf(bio_err, "turning on non blocking io\n");
1551 if (!BIO_socket_nbio(s, 1))
1552 ERR_print_errors(bio_err);
1553 }
1554
1555 if (con == NULL) {
1556 con = SSL_new(ctx);
1557 if (s_server_config.tlsextdebug) {
1558 SSL_set_tlsext_debug_callback(con, tlsext_cb);
1559 SSL_set_tlsext_debug_arg(con, bio_s_out);
1560 }
1561 if (s_server_config.tlsextstatus) {
1562 SSL_CTX_set_tlsext_status_cb(ctx, cert_status_cb);
1563 s_server_config.tlscstatp.err = bio_err;
1564 SSL_CTX_set_tlsext_status_arg(ctx,
1565 &s_server_config.tlscstatp);
1566 }
1567 if (context)
1568 SSL_set_session_id_context(con, context,
1569 strlen((char *) context));
1570 }
1571 SSL_clear(con);
1572
1573 if (SSL_is_dtls(con)) {
1574 sbio = BIO_new_dgram(s, BIO_NOCLOSE);
1575
1576 if (s_server_config.enable_timeouts) {
1577 timeout.tv_sec = 0;
1578 timeout.tv_usec = DGRAM_RCV_TIMEOUT;
1579 BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_RECV_TIMEOUT, 0,
1580 &timeout);
1581
1582 timeout.tv_sec = 0;
1583 timeout.tv_usec = DGRAM_SND_TIMEOUT;
1584 BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_SEND_TIMEOUT, 0,
1585 &timeout);
1586 }
1587 if (s_server_config.socket_mtu > 28) {
1588 SSL_set_options(con, SSL_OP_NO_QUERY_MTU);
1589 SSL_set_mtu(con, s_server_config.socket_mtu - 28);
1590 } else
1591 /* want to do MTU discovery */
1592 BIO_ctrl(sbio, BIO_CTRL_DGRAM_MTU_DISCOVER, 0, NULL);
1593
1594 /* turn on cookie exchange */
1595 SSL_set_options(con, SSL_OP_COOKIE_EXCHANGE);
1596 } else
1597 sbio = BIO_new_socket(s, BIO_NOCLOSE);
1598
1599 if (s_server_config.nbio_test) {
1600 BIO *test;
1601
1602 test = BIO_new(BIO_f_nbio_test());
1603 sbio = BIO_push(test, sbio);
1604 }
1605
1606 SSL_set_bio(con, sbio, sbio);
1607 SSL_set_accept_state(con);
1608 /* SSL_set_fd(con,s); */
1609
1610 if (s_server_config.debug) {
1611 SSL_set_debug(con, 1);
1612 BIO_set_callback(SSL_get_rbio(con), bio_dump_callback);
1613 BIO_set_callback_arg(SSL_get_rbio(con), (char *) bio_s_out);
1614 }
1615 if (s_server_config.msg) {
1616 SSL_set_msg_callback(con, msg_cb);
1617 SSL_set_msg_callback_arg(con, bio_s_out);
1618 }
1619 if (s_server_config.tlsextdebug) {
1620 SSL_set_tlsext_debug_callback(con, tlsext_cb);
1621 SSL_set_tlsext_debug_arg(con, bio_s_out);
1622 }
1623
1624 for (;;) {
1625 int read_from_terminal;
1626 int read_from_sslcon;
1627 struct pollfd pfd[2];
1628 int ptimeout;
1629
1630 read_from_terminal = 0;
1631 read_from_sslcon = SSL_pending(con);
1632
1633 if (!read_from_sslcon) {
1634 pfd[0].fd = fileno(stdin);
1635 pfd[0].events = POLLIN;
1636 pfd[1].fd = s;
1637 pfd[1].events = POLLIN;
1638
1639 if (SSL_is_dtls(con) &&
1640 DTLSv1_get_timeout(con, &timeout))
1641 ptimeout = timeout.tv_sec * 1000 +
1642 timeout.tv_usec / 1000;
1643 else
1644 ptimeout = -1;
1645
1646 i = poll(pfd, 2, ptimeout);
1647
1648 if (SSL_is_dtls(con) &&
1649 DTLSv1_handle_timeout(con) > 0)
1650 BIO_printf(bio_err, "TIMEOUT occured\n");
1651 if (i <= 0)
1652 continue;
1653 if (pfd[0].revents) {
1654 if ((pfd[0].revents & (POLLERR|POLLNVAL)))
1655 continue;
1656 read_from_terminal = 1;
1657 }
1658 if (pfd[1].revents) {
1659 if ((pfd[1].revents & (POLLERR|POLLNVAL)))
1660 continue;
1661 read_from_sslcon = 1;
1662 }
1663 }
1664 if (read_from_terminal) {
1665 if (s_server_config.crlf) {
1666 int j, lf_num;
1667
1668 i = read(fileno(stdin), buf, bufsize / 2);
1669 lf_num = 0;
1670 /* both loops are skipped when i <= 0 */
1671 for (j = 0; j < i; j++)
1672 if (buf[j] == '\n')
1673 lf_num++;
1674 for (j = i - 1; j >= 0; j--) {
1675 buf[j + lf_num] = buf[j];
1676 if (buf[j] == '\n') {
1677 lf_num--;
1678 i++;
1679 buf[j + lf_num] = '\r';
1680 }
1681 }
1682 assert(lf_num == 0);
1683 } else
1684 i = read(fileno(stdin), buf, bufsize);
1685 if (!s_server_config.quiet) {
1686 if ((i <= 0) || (buf[0] == 'Q')) {
1687 BIO_printf(bio_s_out, "DONE\n");
1688 shutdown(s, SHUT_RD);
1689 close(s);
1690 close_accept_socket();
1691 ret = -11;
1692 goto err;
1693 }
1694 if ((i <= 0) || (buf[0] == 'q')) {
1695 BIO_printf(bio_s_out, "DONE\n");
1696 if (!SSL_is_dtls(con)) {
1697 shutdown(s, SHUT_RD);
1698 close(s);
1699 }
1700 /*
1701 * close_accept_socket(); ret= -11;
1702 */
1703 goto err;
1704 }
1705 if ((buf[0] == 'r') &&
1706 ((buf[1] == '\n') || (buf[1] == '\r'))) {
1707 SSL_renegotiate(con);
1708 i = SSL_do_handshake(con);
1709 printf("SSL_do_handshake -> %d\n", i);
1710 i = 0; /* 13; */
1711 continue;
1712 /*
1713 * RE-NEGOTIATE\n");
1714 */
1715 }
1716 if ((buf[0] == 'R') &&
1717 ((buf[1] == '\n') || (buf[1] == '\r'))) {
1718 SSL_set_verify(con,
1719 SSL_VERIFY_PEER |
1720 SSL_VERIFY_CLIENT_ONCE,
1721 NULL);
1722 SSL_renegotiate(con);
1723 i = SSL_do_handshake(con);
1724 printf("SSL_do_handshake -> %d\n", i);
1725 i = 0; /* 13; */
1726 continue;
1727 /*
1728 * RE-NEGOTIATE asking for client
1729 * cert\n");
1730 */
1731 }
1732 if (buf[0] == 'P') {
1733 static const char *str =
1734 "Lets print some clear text\n";
1735 BIO_write(SSL_get_wbio(con), str,
1736 strlen(str));
1737 }
1738 if (buf[0] == 'S') {
1739 print_stats(bio_s_out,
1740 SSL_get_SSL_CTX(con));
1741 }
1742 }
1743 l = k = 0;
1744 for (;;) {
1745 /* should do a select for the write */
1746 #ifdef RENEG
1747 {
1748 static count = 0;
1749 if (++count == 100) {
1750 count = 0;
1751 SSL_renegotiate(con);
1752 }
1753 }
1754 #endif
1755 k = SSL_write(con, &(buf[l]), (unsigned int) i);
1756 switch (SSL_get_error(con, k)) {
1757 case SSL_ERROR_NONE:
1758 break;
1759 case SSL_ERROR_WANT_WRITE:
1760 case SSL_ERROR_WANT_READ:
1761 case SSL_ERROR_WANT_X509_LOOKUP:
1762 BIO_printf(bio_s_out, "Write BLOCK\n");
1763 break;
1764 case SSL_ERROR_SYSCALL:
1765 case SSL_ERROR_SSL:
1766 BIO_printf(bio_s_out, "ERROR\n");
1767 ERR_print_errors(bio_err);
1768 ret = 1;
1769 goto err;
1770 /* break; */
1771 case SSL_ERROR_ZERO_RETURN:
1772 BIO_printf(bio_s_out, "DONE\n");
1773 ret = 1;
1774 goto err;
1775 }
1776 if (k <= 0)
1777 continue;
1778 l += k;
1779 i -= k;
1780 if (i <= 0)
1781 break;
1782 }
1783 }
1784 if (read_from_sslcon) {
1785 if (!SSL_is_init_finished(con)) {
1786 i = init_ssl_connection(con);
1787
1788 if (i < 0) {
1789 ret = 0;
1790 goto err;
1791 } else if (i == 0) {
1792 ret = 1;
1793 goto err;
1794 }
1795 } else {
1796 again:
1797 i = SSL_read(con, (char *) buf, bufsize);
1798 switch (SSL_get_error(con, i)) {
1799 case SSL_ERROR_NONE: {
1800 int len, n;
1801 for (len = 0; len < i;) {
1802 do {
1803 n = write(fileno(stdout), buf + len, i - len);
1804 } while (n == -1 && errno == EINTR);
1805
1806 if (n == -1) {
1807 BIO_printf(bio_s_out, "ERROR\n");
1808 goto err;
1809 }
1810 len += n;
1811 }
1812 }
1813 if (SSL_pending(con))
1814 goto again;
1815 break;
1816 case SSL_ERROR_WANT_WRITE:
1817 case SSL_ERROR_WANT_READ:
1818 BIO_printf(bio_s_out, "Read BLOCK\n");
1819 break;
1820 case SSL_ERROR_SYSCALL:
1821 case SSL_ERROR_SSL:
1822 BIO_printf(bio_s_out, "ERROR\n");
1823 ERR_print_errors(bio_err);
1824 ret = 1;
1825 goto err;
1826 case SSL_ERROR_ZERO_RETURN:
1827 BIO_printf(bio_s_out, "DONE\n");
1828 ret = 1;
1829 goto err;
1830 }
1831 }
1832 }
1833 }
1834 err:
1835 if (con != NULL) {
1836 BIO_printf(bio_s_out, "shutting down SSL\n");
1837 SSL_set_shutdown(con,
1838 SSL_SENT_SHUTDOWN | SSL_RECEIVED_SHUTDOWN);
1839 SSL_free(con);
1840 }
1841 BIO_printf(bio_s_out, "CONNECTION CLOSED\n");
1842 freezero(buf, bufsize);
1843 if (ret >= 0)
1844 BIO_printf(bio_s_out, "ACCEPT\n");
1845 return (ret);
1846 }
1847
1848 static void
close_accept_socket(void)1849 close_accept_socket(void)
1850 {
1851 BIO_printf(bio_err, "shutdown accept socket\n");
1852 if (accept_socket >= 0) {
1853 shutdown(accept_socket, SHUT_RDWR);
1854 close(accept_socket);
1855 }
1856 }
1857
1858 static int
init_ssl_connection(SSL * con)1859 init_ssl_connection(SSL *con)
1860 {
1861 int i;
1862 const char *str;
1863 X509 *peer;
1864 long verify_error;
1865 char buf[BUFSIZ];
1866 unsigned char *exportedkeymat;
1867
1868 i = SSL_accept(con);
1869 if (i <= 0) {
1870 if (BIO_sock_should_retry(i)) {
1871 BIO_printf(bio_s_out, "DELAY\n");
1872 return (1);
1873 }
1874 BIO_printf(bio_err, "ERROR\n");
1875 verify_error = SSL_get_verify_result(con);
1876 if (verify_error != X509_V_OK) {
1877 BIO_printf(bio_err, "verify error:%s\n",
1878 X509_verify_cert_error_string(verify_error));
1879 } else
1880 ERR_print_errors(bio_err);
1881 return (0);
1882 }
1883 PEM_write_bio_SSL_SESSION(bio_s_out, SSL_get_session(con));
1884
1885 peer = SSL_get_peer_certificate(con);
1886 if (peer != NULL) {
1887 BIO_printf(bio_s_out, "Client certificate\n");
1888 PEM_write_bio_X509(bio_s_out, peer);
1889 X509_NAME_oneline(X509_get_subject_name(peer), buf, sizeof buf);
1890 BIO_printf(bio_s_out, "subject=%s\n", buf);
1891 X509_NAME_oneline(X509_get_issuer_name(peer), buf, sizeof buf);
1892 BIO_printf(bio_s_out, "issuer=%s\n", buf);
1893 X509_free(peer);
1894 }
1895 if (SSL_get_shared_ciphers(con, buf, sizeof buf) != NULL)
1896 BIO_printf(bio_s_out, "Shared ciphers:%s\n", buf);
1897 str = SSL_CIPHER_get_name(SSL_get_current_cipher(con));
1898 BIO_printf(bio_s_out, "CIPHER is %s\n", (str != NULL) ? str : "(NONE)");
1899
1900 #ifndef OPENSSL_NO_SRTP
1901 {
1902 SRTP_PROTECTION_PROFILE *srtp_profile
1903 = SSL_get_selected_srtp_profile(con);
1904
1905 if (srtp_profile)
1906 BIO_printf(bio_s_out,
1907 "SRTP Extension negotiated, profile=%s\n",
1908 srtp_profile->name);
1909 }
1910 #endif
1911 if (SSL_cache_hit(con))
1912 BIO_printf(bio_s_out, "Reused session-id\n");
1913 BIO_printf(bio_s_out, "Secure Renegotiation IS%s supported\n",
1914 SSL_get_secure_renegotiation_support(con) ? "" : " NOT");
1915 if (s_server_config.keymatexportlabel != NULL) {
1916 BIO_printf(bio_s_out, "Keying material exporter:\n");
1917 BIO_printf(bio_s_out, " Label: '%s'\n",
1918 s_server_config.keymatexportlabel);
1919 BIO_printf(bio_s_out, " Length: %i bytes\n",
1920 s_server_config.keymatexportlen);
1921 exportedkeymat = malloc(s_server_config.keymatexportlen);
1922 if (exportedkeymat != NULL) {
1923 if (!SSL_export_keying_material(con, exportedkeymat,
1924 s_server_config.keymatexportlen,
1925 s_server_config.keymatexportlabel,
1926 strlen(s_server_config.keymatexportlabel),
1927 NULL, 0, 0)) {
1928 BIO_printf(bio_s_out, " Error\n");
1929 } else {
1930 BIO_printf(bio_s_out, " Keying material: ");
1931 for (i = 0; i < s_server_config.keymatexportlen; i++)
1932 BIO_printf(bio_s_out, "%02X",
1933 exportedkeymat[i]);
1934 BIO_printf(bio_s_out, "\n");
1935 }
1936 free(exportedkeymat);
1937 }
1938 }
1939 return (1);
1940 }
1941
1942 #ifndef OPENSSL_NO_DH
1943 static DH *
load_dh_param(const char * dhfile)1944 load_dh_param(const char *dhfile)
1945 {
1946 DH *ret = NULL;
1947 BIO *bio;
1948
1949 if ((bio = BIO_new_file(dhfile, "r")) == NULL)
1950 goto err;
1951 ret = PEM_read_bio_DHparams(bio, NULL, NULL, NULL);
1952 err:
1953 BIO_free(bio);
1954 return (ret);
1955 }
1956 #endif
1957
1958 static int
www_body(int s,unsigned char * context)1959 www_body(int s, unsigned char *context)
1960 {
1961 char *buf = NULL;
1962 int ret = 1;
1963 int i, j, k, dot;
1964 SSL *con;
1965 const SSL_CIPHER *c;
1966 BIO *io, *ssl_bio, *sbio;
1967
1968 buf = malloc(bufsize);
1969 if (buf == NULL)
1970 return (0);
1971 io = BIO_new(BIO_f_buffer());
1972 ssl_bio = BIO_new(BIO_f_ssl());
1973 if ((io == NULL) || (ssl_bio == NULL))
1974 goto err;
1975
1976 if (s_server_config.nbio) {
1977 if (!s_server_config.quiet)
1978 BIO_printf(bio_err, "turning on non blocking io\n");
1979 if (!BIO_socket_nbio(s, 1))
1980 ERR_print_errors(bio_err);
1981 }
1982
1983 /* lets make the output buffer a reasonable size */
1984 if (!BIO_set_write_buffer_size(io, bufsize))
1985 goto err;
1986
1987 if ((con = SSL_new(ctx)) == NULL)
1988 goto err;
1989 if (s_server_config.tlsextdebug) {
1990 SSL_set_tlsext_debug_callback(con, tlsext_cb);
1991 SSL_set_tlsext_debug_arg(con, bio_s_out);
1992 }
1993 if (context)
1994 SSL_set_session_id_context(con, context,
1995 strlen((char *) context));
1996
1997 sbio = BIO_new_socket(s, BIO_NOCLOSE);
1998 if (s_server_config.nbio_test) {
1999 BIO *test;
2000
2001 test = BIO_new(BIO_f_nbio_test());
2002 sbio = BIO_push(test, sbio);
2003 }
2004 SSL_set_bio(con, sbio, sbio);
2005 SSL_set_accept_state(con);
2006
2007 /* SSL_set_fd(con,s); */
2008 BIO_set_ssl(ssl_bio, con, BIO_CLOSE);
2009 BIO_push(io, ssl_bio);
2010
2011 if (s_server_config.debug) {
2012 SSL_set_debug(con, 1);
2013 BIO_set_callback(SSL_get_rbio(con), bio_dump_callback);
2014 BIO_set_callback_arg(SSL_get_rbio(con), (char *) bio_s_out);
2015 }
2016 if (s_server_config.msg) {
2017 SSL_set_msg_callback(con, msg_cb);
2018 SSL_set_msg_callback_arg(con, bio_s_out);
2019 }
2020 for (;;) {
2021 i = BIO_gets(io, buf, bufsize - 1);
2022 if (i < 0) { /* error */
2023 if (!BIO_should_retry(io)) {
2024 if (!s_server_config.quiet)
2025 ERR_print_errors(bio_err);
2026 goto err;
2027 } else {
2028 if (s_server_config.debug) {
2029 BIO_printf(bio_s_out, "read R BLOCK\n");
2030 sleep(1);
2031 }
2032 continue;
2033 }
2034 } else if (i == 0) { /* end of input */
2035 ret = 1;
2036 goto end;
2037 }
2038 /* else we have data */
2039 if (((s_server_config.www == 1) &&
2040 (strncmp("GET ", buf, 4) == 0)) ||
2041 ((s_server_config.www == 2) &&
2042 (strncmp("GET /stats ", buf, 11) == 0))) {
2043 char *p;
2044 X509 *peer;
2045 STACK_OF(SSL_CIPHER) *sk;
2046 static const char *space = " ";
2047
2048 BIO_puts(io, "HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n");
2049 BIO_puts(io, "<HTML><BODY BGCOLOR=\"#ffffff\">\n");
2050 BIO_puts(io, "<pre>\n");
2051 /* BIO_puts(io,SSLeay_version(SSLEAY_VERSION));*/
2052 BIO_puts(io, "\n");
2053 for (i = 0; i < local_argc; i++) {
2054 BIO_puts(io, local_argv[i]);
2055 BIO_write(io, " ", 1);
2056 }
2057 BIO_puts(io, "\n");
2058
2059 BIO_printf(io,
2060 "Secure Renegotiation IS%s supported\n",
2061 SSL_get_secure_renegotiation_support(con) ?
2062 "" : " NOT");
2063
2064 /*
2065 * The following is evil and should not really be
2066 * done
2067 */
2068 BIO_printf(io,
2069 "Ciphers supported in s_server binary\n");
2070 sk = SSL_get_ciphers(con);
2071 j = sk_SSL_CIPHER_num(sk);
2072 for (i = 0; i < j; i++) {
2073 c = sk_SSL_CIPHER_value(sk, i);
2074 BIO_printf(io, "%-11s:%-25s",
2075 SSL_CIPHER_get_version(c),
2076 SSL_CIPHER_get_name(c));
2077 if ((((i + 1) % 2) == 0) && (i + 1 != j))
2078 BIO_puts(io, "\n");
2079 }
2080 BIO_puts(io, "\n");
2081 p = SSL_get_shared_ciphers(con, buf, bufsize);
2082 if (p != NULL) {
2083 BIO_printf(io,
2084 "---\nCiphers common between both SSL end points:\n");
2085 j = i = 0;
2086 while (*p) {
2087 if (*p == ':') {
2088 BIO_write(io, space, 26 - j);
2089 i++;
2090 j = 0;
2091 BIO_write(io,
2092 ((i % 3) ? " " : "\n"), 1);
2093 } else {
2094 BIO_write(io, p, 1);
2095 j++;
2096 }
2097 p++;
2098 }
2099 BIO_puts(io, "\n");
2100 }
2101 BIO_printf(io, (SSL_cache_hit(con)
2102 ? "---\nReused, "
2103 : "---\nNew, "));
2104 c = SSL_get_current_cipher(con);
2105 BIO_printf(io, "%s, Cipher is %s\n",
2106 SSL_CIPHER_get_version(c),
2107 SSL_CIPHER_get_name(c));
2108 SSL_SESSION_print(io, SSL_get_session(con));
2109 BIO_printf(io, "---\n");
2110 print_stats(io, SSL_get_SSL_CTX(con));
2111 BIO_printf(io, "---\n");
2112 peer = SSL_get_peer_certificate(con);
2113 if (peer != NULL) {
2114 BIO_printf(io, "Client certificate\n");
2115 X509_print(io, peer);
2116 PEM_write_bio_X509(io, peer);
2117 } else
2118 BIO_puts(io,
2119 "no client certificate available\n");
2120 BIO_puts(io, "</BODY></HTML>\r\n\r\n");
2121 break;
2122 } else if ((s_server_config.www == 2 ||
2123 s_server_config.www == 3) &&
2124 (strncmp("GET /", buf, 5) == 0)) {
2125 BIO *file;
2126 char *p, *e;
2127 static const char *text = "HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n";
2128
2129 /* skip the '/' */
2130 p = &(buf[5]);
2131
2132 dot = 1;
2133 for (e = p; *e != '\0'; e++) {
2134 if (e[0] == ' ')
2135 break;
2136
2137 switch (dot) {
2138 case 1:
2139 dot = (e[0] == '.') ? 2 : 0;
2140 break;
2141 case 2:
2142 dot = (e[0] == '.') ? 3 : 0;
2143 break;
2144 case 3:
2145 dot = (e[0] == '/' || e[0] == '\\') ?
2146 -1 : 0;
2147 break;
2148 }
2149 if (dot == 0)
2150 dot = (e[0] == '/' || e[0] == '\\') ?
2151 1 : 0;
2152 }
2153 dot = (dot == 3) || (dot == -1); /* filename contains
2154 * ".." component */
2155
2156 if (*e == '\0') {
2157 BIO_puts(io, text);
2158 BIO_printf(io,
2159 "'%s' is an invalid file name\r\n", p);
2160 break;
2161 }
2162 *e = '\0';
2163
2164 if (dot) {
2165 BIO_puts(io, text);
2166 BIO_printf(io,
2167 "'%s' contains '..' reference\r\n", p);
2168 break;
2169 }
2170 if (*p == '/') {
2171 BIO_puts(io, text);
2172 BIO_printf(io,
2173 "'%s' is an invalid path\r\n", p);
2174 break;
2175 }
2176 /* if a directory, do the index thang */
2177 if (app_isdir(p) > 0) {
2178 BIO_puts(io, text);
2179 BIO_printf(io, "'%s' is a directory\r\n", p);
2180 break;
2181 }
2182 if ((file = BIO_new_file(p, "r")) == NULL) {
2183 BIO_puts(io, text);
2184 BIO_printf(io, "Error opening '%s'\r\n", p);
2185 ERR_print_errors(io);
2186 break;
2187 }
2188 if (!s_server_config.quiet)
2189 BIO_printf(bio_err, "FILE:%s\n", p);
2190
2191 if (s_server_config.www == 2) {
2192 i = strlen(p);
2193 if (((i > 5) && (strcmp(&(p[i - 5]), ".html") == 0)) ||
2194 ((i > 4) && (strcmp(&(p[i - 4]), ".php") == 0)) ||
2195 ((i > 4) && (strcmp(&(p[i - 4]), ".htm") == 0)))
2196 BIO_puts(io, "HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n");
2197 else
2198 BIO_puts(io, "HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n");
2199 }
2200 /* send the file */
2201 for (;;) {
2202 i = BIO_read(file, buf, bufsize);
2203 if (i <= 0)
2204 break;
2205
2206 #ifdef RENEG
2207 total_bytes += i;
2208 fprintf(stderr, "%d\n", i);
2209 if (total_bytes > 3 * 1024) {
2210 total_bytes = 0;
2211 fprintf(stderr, "RENEGOTIATE\n");
2212 SSL_renegotiate(con);
2213 }
2214 #endif
2215
2216 for (j = 0; j < i;) {
2217 #ifdef RENEG
2218 {
2219 static count = 0;
2220 if (++count == 13) {
2221 SSL_renegotiate(con);
2222 }
2223 }
2224 #endif
2225 k = BIO_write(io, &(buf[j]), i - j);
2226 if (k <= 0) {
2227 if (!BIO_should_retry(io))
2228 goto write_error;
2229 else {
2230 BIO_printf(bio_s_out,
2231 "rwrite W BLOCK\n");
2232 }
2233 } else {
2234 j += k;
2235 }
2236 }
2237 }
2238 write_error:
2239 BIO_free(file);
2240 break;
2241 }
2242 }
2243
2244 for (;;) {
2245 i = (int) BIO_flush(io);
2246 if (i <= 0) {
2247 if (!BIO_should_retry(io))
2248 break;
2249 } else
2250 break;
2251 }
2252 end:
2253 /* make sure we re-use sessions */
2254 SSL_set_shutdown(con, SSL_SENT_SHUTDOWN | SSL_RECEIVED_SHUTDOWN);
2255
2256 err:
2257
2258 if (ret >= 0)
2259 BIO_printf(bio_s_out, "ACCEPT\n");
2260
2261 free(buf);
2262 BIO_free_all(io);
2263 /* if (ssl_bio != NULL) BIO_free(ssl_bio);*/
2264 return (ret);
2265 }
2266
2267 #define MAX_SESSION_ID_ATTEMPTS 10
2268 static int
generate_session_id(const SSL * ssl,unsigned char * id,unsigned int * id_len)2269 generate_session_id(const SSL *ssl, unsigned char *id, unsigned int *id_len)
2270 {
2271 unsigned int count = 0;
2272 do {
2273 arc4random_buf(id, *id_len);
2274 /*
2275 * Prefix the session_id with the required prefix. NB: If our
2276 * prefix is too long, clip it - but there will be worse
2277 * effects anyway, eg. the server could only possibly create
2278 * 1 session ID (ie. the prefix!) so all future session
2279 * negotiations will fail due to conflicts.
2280 */
2281 memcpy(id, s_server_config.session_id_prefix,
2282 (strlen(s_server_config.session_id_prefix) < *id_len) ?
2283 strlen(s_server_config.session_id_prefix) : *id_len);
2284 }
2285 while (SSL_has_matching_session_id(ssl, id, *id_len) &&
2286 (++count < MAX_SESSION_ID_ATTEMPTS));
2287 if (count >= MAX_SESSION_ID_ATTEMPTS)
2288 return 0;
2289 return 1;
2290 }
2291
2292 static int
ssl_servername_cb(SSL * s,int * ad,void * arg)2293 ssl_servername_cb(SSL *s, int *ad, void *arg)
2294 {
2295 tlsextctx *p = (tlsextctx *) arg;
2296 const char *servername = SSL_get_servername(s,
2297 TLSEXT_NAMETYPE_host_name);
2298
2299 if (servername && p->biodebug)
2300 BIO_printf(p->biodebug, "Hostname in TLS extension: \"%s\"\n",
2301 servername);
2302
2303 if (!p->servername)
2304 return SSL_TLSEXT_ERR_NOACK;
2305
2306 if (servername) {
2307 if (strcmp(servername, p->servername))
2308 return p->extension_error;
2309 if (ctx2) {
2310 BIO_printf(p->biodebug, "Switching server context.\n");
2311 SSL_set_SSL_CTX(s, ctx2);
2312 }
2313 }
2314 return SSL_TLSEXT_ERR_OK;
2315 }
2316
2317 /* Certificate Status callback. This is called when a client includes a
2318 * certificate status request extension.
2319 *
2320 * This is a simplified version. It examines certificates each time and
2321 * makes one OCSP responder query for each request.
2322 *
2323 * A full version would store details such as the OCSP certificate IDs and
2324 * minimise the number of OCSP responses by caching them until they were
2325 * considered "expired".
2326 */
2327
2328 static int
cert_status_cb(SSL * s,void * arg)2329 cert_status_cb(SSL *s, void *arg)
2330 {
2331 tlsextstatusctx *srctx = arg;
2332 BIO *err = srctx->err;
2333 char *host = NULL, *port = NULL, *path = NULL;
2334 int use_ssl;
2335 unsigned char *rspder = NULL;
2336 int rspderlen;
2337 STACK_OF(OPENSSL_STRING) *aia = NULL;
2338 X509 *x = NULL;
2339 X509_STORE_CTX *inctx = NULL;
2340 X509_OBJECT *obj = NULL;
2341 OCSP_REQUEST *req = NULL;
2342 OCSP_RESPONSE *resp = NULL;
2343 OCSP_CERTID *id = NULL;
2344 STACK_OF(X509_EXTENSION) *exts;
2345 int ret = SSL_TLSEXT_ERR_NOACK;
2346 int i;
2347
2348 if (srctx->verbose)
2349 BIO_puts(err, "cert_status: callback called\n");
2350 /* Build up OCSP query from server certificate */
2351 x = SSL_get_certificate(s);
2352 aia = X509_get1_ocsp(x);
2353 if (aia) {
2354 if (!OCSP_parse_url(sk_OPENSSL_STRING_value(aia, 0),
2355 &host, &port, &path, &use_ssl)) {
2356 BIO_puts(err, "cert_status: can't parse AIA URL\n");
2357 goto err;
2358 }
2359 if (srctx->verbose)
2360 BIO_printf(err, "cert_status: AIA URL: %s\n",
2361 sk_OPENSSL_STRING_value(aia, 0));
2362 } else {
2363 if (!srctx->host) {
2364 BIO_puts(srctx->err,
2365 "cert_status: no AIA and no default responder URL\n");
2366 goto done;
2367 }
2368 host = srctx->host;
2369 path = srctx->path;
2370 port = srctx->port;
2371 use_ssl = srctx->use_ssl;
2372 }
2373
2374 if ((inctx = X509_STORE_CTX_new()) == NULL)
2375 goto err;
2376
2377 if (!X509_STORE_CTX_init(inctx,
2378 SSL_CTX_get_cert_store(SSL_get_SSL_CTX(s)),
2379 NULL, NULL))
2380 goto err;
2381 if ((obj = X509_OBJECT_new()) == NULL)
2382 goto done;
2383 if (X509_STORE_get_by_subject(inctx, X509_LU_X509,
2384 X509_get_issuer_name(x), obj) <= 0) {
2385 BIO_puts(err,
2386 "cert_status: Can't retrieve issuer certificate.\n");
2387 X509_STORE_CTX_cleanup(inctx);
2388 goto done;
2389 }
2390 req = OCSP_REQUEST_new();
2391 if (!req)
2392 goto err;
2393 id = OCSP_cert_to_id(NULL, x, X509_OBJECT_get0_X509(obj));
2394 X509_OBJECT_free(obj);
2395 obj = NULL;
2396 X509_STORE_CTX_free(inctx);
2397 inctx = NULL;
2398 if (!id)
2399 goto err;
2400 if (!OCSP_request_add0_id(req, id))
2401 goto err;
2402 id = NULL;
2403 /* Add any extensions to the request */
2404 SSL_get_tlsext_status_exts(s, &exts);
2405 for (i = 0; i < sk_X509_EXTENSION_num(exts); i++) {
2406 X509_EXTENSION *ext = sk_X509_EXTENSION_value(exts, i);
2407 if (!OCSP_REQUEST_add_ext(req, ext, -1))
2408 goto err;
2409 }
2410 resp = process_responder(err, req, host, path, port, use_ssl, NULL,
2411 srctx->timeout);
2412 if (!resp) {
2413 BIO_puts(err, "cert_status: error querying responder\n");
2414 goto done;
2415 }
2416 rspderlen = i2d_OCSP_RESPONSE(resp, &rspder);
2417 if (rspderlen <= 0)
2418 goto err;
2419 SSL_set_tlsext_status_ocsp_resp(s, rspder, rspderlen);
2420 if (srctx->verbose) {
2421 BIO_puts(err, "cert_status: ocsp response sent:\n");
2422 OCSP_RESPONSE_print(err, resp, 2);
2423 }
2424 ret = SSL_TLSEXT_ERR_OK;
2425 done:
2426 X509_STORE_CTX_free(inctx);
2427 X509_OBJECT_free(obj);
2428 if (ret != SSL_TLSEXT_ERR_OK)
2429 ERR_print_errors(err);
2430 if (aia) {
2431 free(host);
2432 free(path);
2433 free(port);
2434 X509_email_free(aia);
2435 }
2436 if (id)
2437 OCSP_CERTID_free(id);
2438 if (req)
2439 OCSP_REQUEST_free(req);
2440 if (resp)
2441 OCSP_RESPONSE_free(resp);
2442 return ret;
2443 err:
2444 ret = SSL_TLSEXT_ERR_ALERT_FATAL;
2445 goto done;
2446 }
2447
2448 static int
alpn_cb(SSL * s,const unsigned char ** out,unsigned char * outlen,const unsigned char * in,unsigned int inlen,void * arg)2449 alpn_cb(SSL *s, const unsigned char **out, unsigned char *outlen,
2450 const unsigned char *in, unsigned int inlen, void *arg)
2451 {
2452 tlsextalpnctx *alpn_ctx = arg;
2453
2454 if (!s_server_config.quiet) {
2455 /* We can assume that in is syntactically valid. */
2456 unsigned i;
2457
2458 BIO_printf(bio_s_out,
2459 "ALPN protocols advertised by the client: ");
2460 for (i = 0; i < inlen; ) {
2461 if (i)
2462 BIO_write(bio_s_out, ", ", 2);
2463 BIO_write(bio_s_out, &in[i + 1], in[i]);
2464 i += in[i] + 1;
2465 }
2466 BIO_write(bio_s_out, "\n", 1);
2467 }
2468
2469 if (SSL_select_next_proto((unsigned char**)out, outlen, alpn_ctx->data,
2470 alpn_ctx->len, in, inlen) != OPENSSL_NPN_NEGOTIATED)
2471 return (SSL_TLSEXT_ERR_NOACK);
2472
2473 if (!s_server_config.quiet) {
2474 BIO_printf(bio_s_out, "ALPN protocols selected: ");
2475 BIO_write(bio_s_out, *out, *outlen);
2476 BIO_write(bio_s_out, "\n", 1);
2477 }
2478
2479 return (SSL_TLSEXT_ERR_OK);
2480 }
2481