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import openssl(1) (LibreSSL 2.5.4)
[unleashed.git] / bin / openssl / s_server.c
blobd73a11799b503cfe02203a38fbd931aa0001e707
1 /* $OpenBSD: s_server.c,v 1.25 2017/01/20 08:57:12 deraadt 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 int sv_body(char *hostname, int s, unsigned char *context);
181 static int www_body(char *hostname, int s, unsigned char *context);
182 static void close_accept_socket(void);
183 static void sv_usage(void);
184 static int init_ssl_connection(SSL * s);
185 static void print_stats(BIO * bp, SSL_CTX * ctx);
186 static int
187 generate_session_id(const SSL * ssl, unsigned char *id,
188 unsigned int *id_len);
189 #ifndef OPENSSL_NO_DH
190 static DH *load_dh_param(const char *dhfile);
191 #endif
192
193 static void s_server_init(void);
194
195 /* static int load_CA(SSL_CTX *ctx, char *file);*/
196
197 #define BUFSIZZ 16*1024
198 static int bufsize = BUFSIZZ;
199 static int accept_socket = -1;
200
201 #define TEST_CERT "server.pem"
202 #define TEST_CERT2 "server2.pem"
203
204 static char *cipher = NULL;
205 static int s_server_verify = SSL_VERIFY_NONE;
206 static int s_server_session_id_context = 1; /* anything will do */
207 static const char *s_cert_file = TEST_CERT, *s_key_file = NULL;
208 static const char *s_cert_file2 = TEST_CERT2, *s_key_file2 = NULL;
209 static char *s_dcert_file = NULL, *s_dkey_file = NULL;
210 static int s_nbio = 0;
211 static int s_nbio_test = 0;
212 int s_crlf = 0;
213 static SSL_CTX *ctx = NULL;
214 static SSL_CTX *ctx2 = NULL;
215 static int www = 0;
216
217 static BIO *bio_s_out = NULL;
218 static int s_debug = 0;
219 static int s_tlsextdebug = 0;
220 static int s_tlsextstatus = 0;
221 static int cert_status_cb(SSL * s, void *arg);
222 static int s_msg = 0;
223 static int s_quiet = 0;
224
225 static char *keymatexportlabel = NULL;
226 static int keymatexportlen = 20;
227
228 static const char *session_id_prefix = NULL;
229
230 static int enable_timeouts = 0;
231 static long socket_mtu;
232 #ifndef OPENSSL_NO_DTLS1
233 static int cert_chain = 0;
234 #endif
235
236
237
238
239 static void
240 s_server_init(void)
241 {
242 accept_socket = -1;
243 cipher = NULL;
244 s_server_verify = SSL_VERIFY_NONE;
245 s_dcert_file = NULL;
246 s_dkey_file = NULL;
247 s_cert_file = TEST_CERT;
248 s_key_file = NULL;
249 s_cert_file2 = TEST_CERT2;
250 s_key_file2 = NULL;
251 ctx2 = NULL;
252 s_nbio = 0;
253 s_nbio_test = 0;
254 ctx = NULL;
255 www = 0;
256
257 bio_s_out = NULL;
258 s_debug = 0;
259 s_msg = 0;
260 s_quiet = 0;
261 }
262
263 static void
264 sv_usage(void)
265 {
266 BIO_printf(bio_err, "usage: s_server [args ...]\n");
267 BIO_printf(bio_err, "\n");
268 BIO_printf(bio_err, " -accept arg - port to accept on (default is %d)\n", PORT);
269 BIO_printf(bio_err, " -context arg - set session ID context\n");
270 BIO_printf(bio_err, " -verify arg - turn on peer certificate verification\n");
271 BIO_printf(bio_err, " -Verify arg - turn on peer certificate verification, must have a cert.\n");
272 BIO_printf(bio_err, " -cert arg - certificate file to use\n");
273 BIO_printf(bio_err, " (default is %s)\n", TEST_CERT);
274 BIO_printf(bio_err, " -crl_check - check the peer certificate has not been revoked by its CA.\n" \
275 " The CRL(s) are appended to the certificate file\n");
276 BIO_printf(bio_err, " -crl_check_all - check the peer certificate has not been revoked by its CA\n" \
277 " or any other CRL in the CA chain. CRL(s) are appended to the\n" \
278 " the certificate file.\n");
279 BIO_printf(bio_err, " -certform arg - certificate format (PEM or DER) PEM default\n");
280 BIO_printf(bio_err, " -key arg - Private Key file to use, in cert file if\n");
281 BIO_printf(bio_err, " not specified (default is %s)\n", TEST_CERT);
282 BIO_printf(bio_err, " -keyform arg - key format (PEM or DER) PEM default\n");
283 BIO_printf(bio_err, " -pass arg - private key file pass phrase source\n");
284 BIO_printf(bio_err, " -dcert arg - second certificate file to use (usually for DSA)\n");
285 BIO_printf(bio_err, " -dcertform x - second certificate format (PEM or DER) PEM default\n");
286 BIO_printf(bio_err, " -dkey arg - second private key file to use (usually for DSA)\n");
287 BIO_printf(bio_err, " -dkeyform arg - second key format (PEM or DER) PEM default\n");
288 BIO_printf(bio_err, " -dpass arg - second private key file pass phrase source\n");
289 BIO_printf(bio_err, " -dhparam arg - DH parameter file to use, in cert file if not specified\n");
290 BIO_printf(bio_err, " or a default set of parameters is used\n");
291 BIO_printf(bio_err, " -named_curve arg - Elliptic curve name to use for ephemeral ECDH keys.\n" \
292 " Use \"openssl ecparam -list_curves\" for all names\n" \
293 " (default is nistp256).\n");
294 BIO_printf(bio_err, " -nbio - Run with non-blocking IO\n");
295 BIO_printf(bio_err, " -nbio_test - test with the non-blocking test bio\n");
296 BIO_printf(bio_err, " -crlf - convert LF from terminal into CRLF\n");
297 BIO_printf(bio_err, " -debug - Print more output\n");
298 BIO_printf(bio_err, " -msg - Show protocol messages\n");
299 BIO_printf(bio_err, " -state - Print the SSL states\n");
300 BIO_printf(bio_err, " -CApath arg - PEM format directory of CA's\n");
301 BIO_printf(bio_err, " -CAfile arg - PEM format file of CA's\n");
302 BIO_printf(bio_err, " -nocert - Don't use any certificates (Anon-DH)\n");
303 BIO_printf(bio_err, " -cipher arg - play with 'openssl ciphers' to see what goes here\n");
304 BIO_printf(bio_err, " -serverpref - Use server's cipher preferences\n");
305 BIO_printf(bio_err, " -quiet - Inhibit printing of session and certificate information\n");
306 BIO_printf(bio_err, " -tls1_2 - Just talk TLSv1.2\n");
307 BIO_printf(bio_err, " -tls1_1 - Just talk TLSv1.1\n");
308 BIO_printf(bio_err, " -tls1 - Just talk TLSv1\n");
309 BIO_printf(bio_err, " -dtls1 - Just talk DTLSv1\n");
310 BIO_printf(bio_err, " -timeout - Enable timeouts\n");
311 BIO_printf(bio_err, " -mtu - Set link layer MTU\n");
312 BIO_printf(bio_err, " -chain - Read a certificate chain\n");
313 BIO_printf(bio_err, " -no_ssl2 - Just disable SSLv2\n");
314 BIO_printf(bio_err, " -no_ssl3 - Just disable SSLv3\n");
315 BIO_printf(bio_err, " -no_tls1 - Just disable TLSv1\n");
316 BIO_printf(bio_err, " -no_tls1_1 - Just disable TLSv1.1\n");
317 BIO_printf(bio_err, " -no_tls1_2 - Just disable TLSv1.2\n");
318 #ifndef OPENSSL_NO_DH
319 BIO_printf(bio_err, " -no_dhe - Disable ephemeral DH\n");
320 #endif
321 BIO_printf(bio_err, " -no_ecdhe - Disable ephemeral ECDH\n");
322 BIO_printf(bio_err, " -bugs - Turn on SSL bug compatibility\n");
323 BIO_printf(bio_err, " -www - Respond to a 'GET /' with a status page\n");
324 BIO_printf(bio_err, " -WWW - Respond to a 'GET /<path> HTTP/1.0' with file ./<path>\n");
325 BIO_printf(bio_err, " -HTTP - Respond to a 'GET /<path> HTTP/1.0' with file ./<path>\n");
326 BIO_printf(bio_err, " with the assumption it contains a complete HTTP response.\n");
327 BIO_printf(bio_err, " -id_prefix arg - Generate SSL/TLS session IDs prefixed by 'arg'\n");
328 BIO_printf(bio_err, " -servername host - servername for HostName TLS extension\n");
329 BIO_printf(bio_err, " -servername_fatal - on mismatch send fatal alert (default warning alert)\n");
330 BIO_printf(bio_err, " -cert2 arg - certificate file to use for servername\n");
331 BIO_printf(bio_err, " (default is %s)\n", TEST_CERT2);
332 BIO_printf(bio_err, " -key2 arg - Private Key file to use for servername, in cert file if\n");
333 BIO_printf(bio_err, " not specified (default is %s)\n", TEST_CERT2);
334 BIO_printf(bio_err, " -tlsextdebug - hex dump of all TLS extensions received\n");
335 BIO_printf(bio_err, " -no_ticket - disable use of RFC4507bis session tickets\n");
336 BIO_printf(bio_err, " -nextprotoneg arg - set the advertised protocols for the NPN extension (comma-separated list)\n");
337 BIO_printf(bio_err," -alpn arg - set the advertised protocols for the ALPN extension (comma-separated list)\n");
338 #ifndef OPENSSL_NO_SRTP
339 BIO_printf(bio_err, " -use_srtp profiles - Offer SRTP key management with a colon-separated profile list\n");
340 #endif
341 BIO_printf(bio_err, " -keymatexport label - Export keying material using label\n");
342 BIO_printf(bio_err, " -keymatexportlen len - Export len bytes of keying material (default 20)\n");
343 }
344
345 static int local_argc = 0;
346 static char **local_argv;
347
348
349 /* This is a context that we pass to callbacks */
350 typedef struct tlsextctx_st {
351 char *servername;
352 BIO *biodebug;
353 int extension_error;
354 } tlsextctx;
355
356
357 static int
358 ssl_servername_cb(SSL * s, int *ad, void *arg)
359 {
360 tlsextctx *p = (tlsextctx *) arg;
361 const char *servername = SSL_get_servername(s, TLSEXT_NAMETYPE_host_name);
362 if (servername && p->biodebug)
363 BIO_printf(p->biodebug, "Hostname in TLS extension: \"%s\"\n", servername);
364
365 if (!p->servername)
366 return SSL_TLSEXT_ERR_NOACK;
367
368 if (servername) {
369 if (strcmp(servername, p->servername))
370 return p->extension_error;
371 if (ctx2) {
372 BIO_printf(p->biodebug, "Switching server context.\n");
373 SSL_set_SSL_CTX(s, ctx2);
374 }
375 }
376 return SSL_TLSEXT_ERR_OK;
377 }
378
379 /* Structure passed to cert status callback */
380
381 typedef struct tlsextstatusctx_st {
382 /* Default responder to use */
383 char *host, *path, *port;
384 int use_ssl;
385 int timeout;
386 BIO *err;
387 int verbose;
388 } tlsextstatusctx;
389
390 static tlsextstatusctx tlscstatp = {NULL, NULL, NULL, 0, -1, NULL, 0};
391
392 /* Certificate Status callback. This is called when a client includes a
393 * certificate status request extension.
394 *
395 * This is a simplified version. It examines certificates each time and
396 * makes one OCSP responder query for each request.
397 *
398 * A full version would store details such as the OCSP certificate IDs and
399 * minimise the number of OCSP responses by caching them until they were
400 * considered "expired".
401 */
402
403 static int
404 cert_status_cb(SSL * s, void *arg)
405 {
406 tlsextstatusctx *srctx = arg;
407 BIO *err = srctx->err;
408 char *host, *port, *path;
409 int use_ssl;
410 unsigned char *rspder = NULL;
411 int rspderlen;
412 STACK_OF(OPENSSL_STRING) * aia = NULL;
413 X509 *x = NULL;
414 X509_STORE_CTX inctx;
415 X509_OBJECT obj;
416 OCSP_REQUEST *req = NULL;
417 OCSP_RESPONSE *resp = NULL;
418 OCSP_CERTID *id = NULL;
419 STACK_OF(X509_EXTENSION) * exts;
420 int ret = SSL_TLSEXT_ERR_NOACK;
421 int i;
422
423 if (srctx->verbose)
424 BIO_puts(err, "cert_status: callback called\n");
425 /* Build up OCSP query from server certificate */
426 x = SSL_get_certificate(s);
427 aia = X509_get1_ocsp(x);
428 if (aia) {
429 if (!OCSP_parse_url(sk_OPENSSL_STRING_value(aia, 0),
430 &host, &port, &path, &use_ssl)) {
431 BIO_puts(err, "cert_status: can't parse AIA URL\n");
432 goto err;
433 }
434 if (srctx->verbose)
435 BIO_printf(err, "cert_status: AIA URL: %s\n",
436 sk_OPENSSL_STRING_value(aia, 0));
437 } else {
438 if (!srctx->host) {
439 BIO_puts(srctx->err, "cert_status: no AIA and no default responder URL\n");
440 goto done;
441 }
442 host = srctx->host;
443 path = srctx->path;
444 port = srctx->port;
445 use_ssl = srctx->use_ssl;
446 }
447
448 if (!X509_STORE_CTX_init(&inctx,
449 SSL_CTX_get_cert_store(SSL_get_SSL_CTX(s)),
450 NULL, NULL))
451 goto err;
452 if (X509_STORE_get_by_subject(&inctx, X509_LU_X509,
453 X509_get_issuer_name(x), &obj) <= 0) {
454 BIO_puts(err, "cert_status: Can't retrieve issuer certificate.\n");
455 X509_STORE_CTX_cleanup(&inctx);
456 goto done;
457 }
458 req = OCSP_REQUEST_new();
459 if (!req)
460 goto err;
461 id = OCSP_cert_to_id(NULL, x, obj.data.x509);
462 X509_free(obj.data.x509);
463 X509_STORE_CTX_cleanup(&inctx);
464 if (!id)
465 goto err;
466 if (!OCSP_request_add0_id(req, id))
467 goto err;
468 id = NULL;
469 /* Add any extensions to the request */
470 SSL_get_tlsext_status_exts(s, &exts);
471 for (i = 0; i < sk_X509_EXTENSION_num(exts); i++) {
472 X509_EXTENSION *ext = sk_X509_EXTENSION_value(exts, i);
473 if (!OCSP_REQUEST_add_ext(req, ext, -1))
474 goto err;
475 }
476 resp = process_responder(err, req, host, path, port, use_ssl, NULL,
477 srctx->timeout);
478 if (!resp) {
479 BIO_puts(err, "cert_status: error querying responder\n");
480 goto done;
481 }
482 rspderlen = i2d_OCSP_RESPONSE(resp, &rspder);
483 if (rspderlen <= 0)
484 goto err;
485 SSL_set_tlsext_status_ocsp_resp(s, rspder, rspderlen);
486 if (srctx->verbose) {
487 BIO_puts(err, "cert_status: ocsp response sent:\n");
488 OCSP_RESPONSE_print(err, resp, 2);
489 }
490 ret = SSL_TLSEXT_ERR_OK;
491 done:
492 if (ret != SSL_TLSEXT_ERR_OK)
493 ERR_print_errors(err);
494 if (aia) {
495 free(host);
496 free(path);
497 free(port);
498 X509_email_free(aia);
499 }
500 if (id)
501 OCSP_CERTID_free(id);
502 if (req)
503 OCSP_REQUEST_free(req);
504 if (resp)
505 OCSP_RESPONSE_free(resp);
506 return ret;
507 err:
508 ret = SSL_TLSEXT_ERR_ALERT_FATAL;
509 goto done;
510 }
511
512 /* This is the context that we pass to next_proto_cb */
513 typedef struct tlsextnextprotoctx_st {
514 unsigned char *data;
515 unsigned int len;
516 } tlsextnextprotoctx;
517
518 static int
519 next_proto_cb(SSL * s, const unsigned char **data, unsigned int *len, void *arg)
520 {
521 tlsextnextprotoctx *next_proto = arg;
522
523 *data = next_proto->data;
524 *len = next_proto->len;
525
526 return SSL_TLSEXT_ERR_OK;
527 }
528
529
530 /* This the context that we pass to alpn_cb */
531 typedef struct tlsextalpnctx_st {
532 unsigned char *data;
533 unsigned short len;
534 } tlsextalpnctx;
535
536 static int
537 alpn_cb(SSL *s, const unsigned char **out, unsigned char *outlen,
538 const unsigned char *in, unsigned int inlen, void *arg)
539 {
540 tlsextalpnctx *alpn_ctx = arg;
541
542 if (!s_quiet) {
543 /* We can assume that in is syntactically valid. */
544 unsigned i;
545
546 BIO_printf(bio_s_out,
547 "ALPN protocols advertised by the client: ");
548 for (i = 0; i < inlen; ) {
549 if (i)
550 BIO_write(bio_s_out, ", ", 2);
551 BIO_write(bio_s_out, &in[i + 1], in[i]);
552 i += in[i] + 1;
553 }
554 BIO_write(bio_s_out, "\n", 1);
555 }
556
557 if (SSL_select_next_proto((unsigned char**)out, outlen, alpn_ctx->data,
558 alpn_ctx->len, in, inlen) != OPENSSL_NPN_NEGOTIATED)
559 return (SSL_TLSEXT_ERR_NOACK);
560
561 if (!s_quiet) {
562 BIO_printf(bio_s_out, "ALPN protocols selected: ");
563 BIO_write(bio_s_out, *out, *outlen);
564 BIO_write(bio_s_out, "\n", 1);
565 }
566
567 return (SSL_TLSEXT_ERR_OK);
568 }
569
570 #ifndef OPENSSL_NO_SRTP
571 static char *srtp_profiles = NULL;
572 #endif
573
574 int
575 s_server_main(int argc, char *argv[])
576 {
577 X509_VERIFY_PARAM *vpm = NULL;
578 int badarg = 0;
579 short port = PORT;
580 char *CApath = NULL, *CAfile = NULL;
581 unsigned char *context = NULL;
582 char *dhfile = NULL;
583 char *named_curve = NULL;
584 int badop = 0, bugs = 0;
585 int ret = 1;
586 int off = 0;
587 int no_dhe = 0, no_ecdhe = 0, nocert = 0;
588 int state = 0;
589 const SSL_METHOD *meth = NULL;
590 int socket_type = SOCK_STREAM;
591 int s_cert_format = FORMAT_PEM, s_key_format = FORMAT_PEM;
592 char *passarg = NULL, *pass = NULL;
593 char *dpassarg = NULL, *dpass = NULL;
594 int s_dcert_format = FORMAT_PEM, s_dkey_format = FORMAT_PEM;
595 X509 *s_cert = NULL, *s_dcert = NULL;
596 EVP_PKEY *s_key = NULL, *s_dkey = NULL;
597 int no_cache = 0;
598 const char *errstr = NULL;
599 EVP_PKEY *s_key2 = NULL;
600 X509 *s_cert2 = NULL;
601 tlsextctx tlsextcbp = {NULL, NULL, SSL_TLSEXT_ERR_ALERT_WARNING};
602 const char *next_proto_neg_in = NULL;
603 tlsextnextprotoctx next_proto = { NULL, 0 };
604 const char *alpn_in = NULL;
605 tlsextalpnctx alpn_ctx = { NULL, 0 };
606
607 if (single_execution) {
608 if (pledge("stdio rpath inet dns tty", NULL) == -1) {
609 perror("pledge");
610 exit(1);
611 }
612 }
613
614 meth = SSLv23_server_method();
615
616 local_argc = argc;
617 local_argv = argv;
618
619 s_server_init();
620
621 verify_depth = 0;
622 s_nbio = 0;
623 s_nbio_test = 0;
624
625 argc--;
626 argv++;
627
628 while (argc >= 1) {
629 if ((strcmp(*argv, "-port") == 0) ||
630 (strcmp(*argv, "-accept") == 0)) {
631 if (--argc < 1)
632 goto bad;
633 if (!extract_port(*(++argv), &port))
634 goto bad;
635 } else if (strcmp(*argv, "-verify") == 0) {
636 s_server_verify = SSL_VERIFY_PEER | SSL_VERIFY_CLIENT_ONCE;
637 if (--argc < 1)
638 goto bad;
639 verify_depth = strtonum(*(++argv), 0, INT_MAX, &errstr);
640 if (errstr)
641 goto bad;
642 BIO_printf(bio_err, "verify depth is %d\n", verify_depth);
643 } else if (strcmp(*argv, "-Verify") == 0) {
644 s_server_verify = SSL_VERIFY_PEER | SSL_VERIFY_FAIL_IF_NO_PEER_CERT |
645 SSL_VERIFY_CLIENT_ONCE;
646 if (--argc < 1)
647 goto bad;
648 verify_depth = strtonum(*(++argv), 0, INT_MAX, &errstr);
649 if (errstr)
650 goto bad;
651 BIO_printf(bio_err, "verify depth is %d, must return a certificate\n", verify_depth);
652 } else if (strcmp(*argv, "-context") == 0) {
653 if (--argc < 1)
654 goto bad;
655 context = (unsigned char *) *(++argv);
656 } else if (strcmp(*argv, "-cert") == 0) {
657 if (--argc < 1)
658 goto bad;
659 s_cert_file = *(++argv);
660 } else if (strcmp(*argv, "-certform") == 0) {
661 if (--argc < 1)
662 goto bad;
663 s_cert_format = str2fmt(*(++argv));
664 } else if (strcmp(*argv, "-key") == 0) {
665 if (--argc < 1)
666 goto bad;
667 s_key_file = *(++argv);
668 } else if (strcmp(*argv, "-keyform") == 0) {
669 if (--argc < 1)
670 goto bad;
671 s_key_format = str2fmt(*(++argv));
672 } else if (strcmp(*argv, "-pass") == 0) {
673 if (--argc < 1)
674 goto bad;
675 passarg = *(++argv);
676 } else if (strcmp(*argv, "-dhparam") == 0) {
677 if (--argc < 1)
678 goto bad;
679 dhfile = *(++argv);
680 }
681 else if (strcmp(*argv, "-named_curve") == 0) {
682 if (--argc < 1)
683 goto bad;
684 named_curve = *(++argv);
685 }
686 else if (strcmp(*argv, "-dcertform") == 0) {
687 if (--argc < 1)
688 goto bad;
689 s_dcert_format = str2fmt(*(++argv));
690 } else if (strcmp(*argv, "-dcert") == 0) {
691 if (--argc < 1)
692 goto bad;
693 s_dcert_file = *(++argv);
694 } else if (strcmp(*argv, "-dkeyform") == 0) {
695 if (--argc < 1)
696 goto bad;
697 s_dkey_format = str2fmt(*(++argv));
698 } else if (strcmp(*argv, "-dpass") == 0) {
699 if (--argc < 1)
700 goto bad;
701 dpassarg = *(++argv);
702 } else if (strcmp(*argv, "-dkey") == 0) {
703 if (--argc < 1)
704 goto bad;
705 s_dkey_file = *(++argv);
706 } else if (strcmp(*argv, "-nocert") == 0) {
707 nocert = 1;
708 } else if (strcmp(*argv, "-CApath") == 0) {
709 if (--argc < 1)
710 goto bad;
711 CApath = *(++argv);
712 } else if (strcmp(*argv, "-no_cache") == 0)
713 no_cache = 1;
714 else if (args_verify(&argv, &argc, &badarg, bio_err, &vpm)) {
715 if (badarg)
716 goto bad;
717 continue;
718 } else if (strcmp(*argv, "-verify_return_error") == 0)
719 verify_return_error = 1;
720 else if (strcmp(*argv, "-serverpref") == 0) {
721 off |= SSL_OP_CIPHER_SERVER_PREFERENCE;
722 } else if (strcmp(*argv, "-legacy_renegotiation") == 0)
723 ; /* no-op */
724 else if (strcmp(*argv, "-cipher") == 0) {
725 if (--argc < 1)
726 goto bad;
727 cipher = *(++argv);
728 } else if (strcmp(*argv, "-CAfile") == 0) {
729 if (--argc < 1)
730 goto bad;
731 CAfile = *(++argv);
732 }
733 else if (strcmp(*argv, "-nbio") == 0) {
734 s_nbio = 1;
735 }
736 else if (strcmp(*argv, "-nbio_test") == 0) {
737 s_nbio = 1;
738 s_nbio_test = 1;
739 } else if (strcmp(*argv, "-debug") == 0) {
740 s_debug = 1;
741 }
742 else if (strcmp(*argv, "-tlsextdebug") == 0)
743 s_tlsextdebug = 1;
744 else if (strcmp(*argv, "-status") == 0)
745 s_tlsextstatus = 1;
746 else if (strcmp(*argv, "-status_verbose") == 0) {
747 s_tlsextstatus = 1;
748 tlscstatp.verbose = 1;
749 } else if (!strcmp(*argv, "-status_timeout")) {
750 s_tlsextstatus = 1;
751 if (--argc < 1)
752 goto bad;
753 tlscstatp.timeout = strtonum(*(++argv), 0, INT_MAX, &errstr);
754 if (errstr)
755 goto bad;
756 } else if (!strcmp(*argv, "-status_url")) {
757 s_tlsextstatus = 1;
758 if (--argc < 1)
759 goto bad;
760 if (!OCSP_parse_url(*(++argv),
761 &tlscstatp.host,
762 &tlscstatp.port,
763 &tlscstatp.path,
764 &tlscstatp.use_ssl)) {
765 BIO_printf(bio_err, "Error parsing URL\n");
766 goto bad;
767 }
768 }
769 else if (strcmp(*argv, "-msg") == 0) {
770 s_msg = 1;
771 } else if (strcmp(*argv, "-state") == 0) {
772 state = 1;
773 } else if (strcmp(*argv, "-crlf") == 0) {
774 s_crlf = 1;
775 } else if (strcmp(*argv, "-quiet") == 0) {
776 s_quiet = 1;
777 } else if (strcmp(*argv, "-bugs") == 0) {
778 bugs = 1;
779 } else if (strcmp(*argv, "-no_tmp_rsa") == 0) {
780 /* No-op. */
781 } else if (strcmp(*argv, "-no_dhe") == 0) {
782 no_dhe = 1;
783 } else if (strcmp(*argv, "-no_ecdhe") == 0) {
784 no_ecdhe = 1;
785 } else if (strcmp(*argv, "-www") == 0) {
786 www = 1;
787 } else if (strcmp(*argv, "-WWW") == 0) {
788 www = 2;
789 } else if (strcmp(*argv, "-HTTP") == 0) {
790 www = 3;
791 } else if (strcmp(*argv, "-no_ssl2") == 0) {
792 off |= SSL_OP_NO_SSLv2;
793 } else if (strcmp(*argv, "-no_ssl3") == 0) {
794 off |= SSL_OP_NO_SSLv3;
795 } else if (strcmp(*argv, "-no_tls1") == 0) {
796 off |= SSL_OP_NO_TLSv1;
797 } else if (strcmp(*argv, "-no_tls1_1") == 0) {
798 off |= SSL_OP_NO_TLSv1_1;
799 } else if (strcmp(*argv, "-no_tls1_2") == 0) {
800 off |= SSL_OP_NO_TLSv1_2;
801 } else if (strcmp(*argv, "-no_comp") == 0) {
802 off |= SSL_OP_NO_COMPRESSION;
803 } else if (strcmp(*argv, "-no_ticket") == 0) {
804 off |= SSL_OP_NO_TICKET;
805 } else if (strcmp(*argv, "-tls1") == 0) {
806 meth = TLSv1_server_method();
807 } else if (strcmp(*argv, "-tls1_1") == 0) {
808 meth = TLSv1_1_server_method();
809 } else if (strcmp(*argv, "-tls1_2") == 0) {
810 meth = TLSv1_2_server_method();
811 }
812 #ifndef OPENSSL_NO_DTLS1
813 else if (strcmp(*argv, "-dtls1") == 0) {
814 meth = DTLSv1_server_method();
815 socket_type = SOCK_DGRAM;
816 } else if (strcmp(*argv, "-timeout") == 0)
817 enable_timeouts = 1;
818 else if (strcmp(*argv, "-mtu") == 0) {
819 if (--argc < 1)
820 goto bad;
821 socket_mtu = strtonum(*(++argv), 0, LONG_MAX, &errstr);
822 if (errstr)
823 goto bad;
824 } else if (strcmp(*argv, "-chain") == 0)
825 cert_chain = 1;
826 #endif
827 else if (strcmp(*argv, "-id_prefix") == 0) {
828 if (--argc < 1)
829 goto bad;
830 session_id_prefix = *(++argv);
831 }
832 else if (strcmp(*argv, "-servername") == 0) {
833 if (--argc < 1)
834 goto bad;
835 tlsextcbp.servername = *(++argv);
836 } else if (strcmp(*argv, "-servername_fatal") == 0) {
837 tlsextcbp.extension_error = SSL_TLSEXT_ERR_ALERT_FATAL;
838 } else if (strcmp(*argv, "-cert2") == 0) {
839 if (--argc < 1)
840 goto bad;
841 s_cert_file2 = *(++argv);
842 } else if (strcmp(*argv, "-key2") == 0) {
843 if (--argc < 1)
844 goto bad;
845 s_key_file2 = *(++argv);
846 }
847 else if (strcmp(*argv, "-nextprotoneg") == 0) {
848 if (--argc < 1)
849 goto bad;
850 next_proto_neg_in = *(++argv);
851 }
852 else if (strcmp(*argv,"-alpn") == 0) {
853 if (--argc < 1)
854 goto bad;
855 alpn_in = *(++argv);
856 }
857 #ifndef OPENSSL_NO_SRTP
858 else if (strcmp(*argv, "-use_srtp") == 0) {
859 if (--argc < 1)
860 goto bad;
861 srtp_profiles = *(++argv);
862 }
863 #endif
864 else if (strcmp(*argv, "-keymatexport") == 0) {
865 if (--argc < 1)
866 goto bad;
867 keymatexportlabel = *(++argv);
868 } else if (strcmp(*argv, "-keymatexportlen") == 0) {
869 if (--argc < 1)
870 goto bad;
871 keymatexportlen = strtonum(*(++argv), 1, INT_MAX, &errstr);
872 if (errstr)
873 goto bad;
874 } else {
875 BIO_printf(bio_err, "unknown option %s\n", *argv);
876 badop = 1;
877 break;
878 }
879 argc--;
880 argv++;
881 }
882 if (badop) {
883 bad:
884 if (errstr)
885 BIO_printf(bio_err, "invalid argument %s: %s\n",
886 *argv, errstr);
887 else
888 sv_usage();
889 goto end;
890 }
891
892 if (!app_passwd(bio_err, passarg, dpassarg, &pass, &dpass)) {
893 BIO_printf(bio_err, "Error getting password\n");
894 goto end;
895 }
896 if (s_key_file == NULL)
897 s_key_file = s_cert_file;
898 if (s_key_file2 == NULL)
899 s_key_file2 = s_cert_file2;
900
901 if (nocert == 0) {
902 s_key = load_key(bio_err, s_key_file, s_key_format, 0, pass,
903 "server certificate private key file");
904 if (!s_key) {
905 ERR_print_errors(bio_err);
906 goto end;
907 }
908 s_cert = load_cert(bio_err, s_cert_file, s_cert_format,
909 NULL, "server certificate file");
910
911 if (!s_cert) {
912 ERR_print_errors(bio_err);
913 goto end;
914 }
915 if (tlsextcbp.servername) {
916 s_key2 = load_key(bio_err, s_key_file2, s_key_format, 0, pass,
917 "second server certificate private key file");
918 if (!s_key2) {
919 ERR_print_errors(bio_err);
920 goto end;
921 }
922 s_cert2 = load_cert(bio_err, s_cert_file2, s_cert_format,
923 NULL, "second server certificate file");
924
925 if (!s_cert2) {
926 ERR_print_errors(bio_err);
927 goto end;
928 }
929 }
930 }
931 if (next_proto_neg_in) {
932 unsigned short len;
933 next_proto.data = next_protos_parse(&len, next_proto_neg_in);
934 if (next_proto.data == NULL)
935 goto end;
936 next_proto.len = len;
937 } else {
938 next_proto.data = NULL;
939 }
940 alpn_ctx.data = NULL;
941 if (alpn_in) {
942 unsigned short len;
943 alpn_ctx.data = next_protos_parse(&len, alpn_in);
944 if (alpn_ctx.data == NULL)
945 goto end;
946 alpn_ctx.len = len;
947 }
948
949 if (s_dcert_file) {
950
951 if (s_dkey_file == NULL)
952 s_dkey_file = s_dcert_file;
953
954 s_dkey = load_key(bio_err, s_dkey_file, s_dkey_format,
955 0, dpass, "second certificate private key file");
956 if (!s_dkey) {
957 ERR_print_errors(bio_err);
958 goto end;
959 }
960 s_dcert = load_cert(bio_err, s_dcert_file, s_dcert_format,
961 NULL, "second server certificate file");
962
963 if (!s_dcert) {
964 ERR_print_errors(bio_err);
965 goto end;
966 }
967 }
968 if (bio_s_out == NULL) {
969 if (s_quiet && !s_debug && !s_msg) {
970 bio_s_out = BIO_new(BIO_s_null());
971 } else {
972 if (bio_s_out == NULL)
973 bio_s_out = BIO_new_fp(stdout, BIO_NOCLOSE);
974 }
975 }
976 if (nocert) {
977 s_cert_file = NULL;
978 s_key_file = NULL;
979 s_dcert_file = NULL;
980 s_dkey_file = NULL;
981 s_cert_file2 = NULL;
982 s_key_file2 = NULL;
983 }
984 ctx = SSL_CTX_new(meth);
985 if (ctx == NULL) {
986 ERR_print_errors(bio_err);
987 goto end;
988 }
989 if (session_id_prefix) {
990 if (strlen(session_id_prefix) >= 32)
991 BIO_printf(bio_err,
992 "warning: id_prefix is too long, only one new session will be possible\n");
993 else if (strlen(session_id_prefix) >= 16)
994 BIO_printf(bio_err,
995 "warning: id_prefix is too long if you use SSLv2\n");
996 if (!SSL_CTX_set_generate_session_id(ctx, generate_session_id)) {
997 BIO_printf(bio_err, "error setting 'id_prefix'\n");
998 ERR_print_errors(bio_err);
999 goto end;
1000 }
1001 BIO_printf(bio_err, "id_prefix '%s' set.\n", session_id_prefix);
1002 }
1003 SSL_CTX_set_quiet_shutdown(ctx, 1);
1004 if (bugs)
1005 SSL_CTX_set_options(ctx, SSL_OP_ALL);
1006 SSL_CTX_set_options(ctx, off);
1007 /*
1008 * DTLS: partial reads end up discarding unread UDP bytes :-( Setting
1009 * read ahead solves this problem.
1010 */
1011 if (socket_type == SOCK_DGRAM)
1012 SSL_CTX_set_read_ahead(ctx, 1);
1013
1014 if (state)
1015 SSL_CTX_set_info_callback(ctx, apps_ssl_info_callback);
1016 if (no_cache)
1017 SSL_CTX_set_session_cache_mode(ctx, SSL_SESS_CACHE_OFF);
1018 else
1019 SSL_CTX_sess_set_cache_size(ctx, 128);
1020
1021 #ifndef OPENSSL_NO_SRTP
1022 if (srtp_profiles != NULL)
1023 SSL_CTX_set_tlsext_use_srtp(ctx, srtp_profiles);
1024 #endif
1025
1026
1027 if ((!SSL_CTX_load_verify_locations(ctx, CAfile, CApath)) ||
1028 (!SSL_CTX_set_default_verify_paths(ctx))) {
1029 /* BIO_printf(bio_err,"X509_load_verify_locations\n"); */
1030 ERR_print_errors(bio_err);
1031 /* goto end; */
1032 }
1033 if (vpm)
1034 SSL_CTX_set1_param(ctx, vpm);
1035
1036 if (s_cert2) {
1037 ctx2 = SSL_CTX_new(meth);
1038 if (ctx2 == NULL) {
1039 ERR_print_errors(bio_err);
1040 goto end;
1041 }
1042 }
1043 if (ctx2) {
1044 BIO_printf(bio_s_out, "Setting secondary ctx parameters\n");
1045
1046 if (session_id_prefix) {
1047 if (strlen(session_id_prefix) >= 32)
1048 BIO_printf(bio_err,
1049 "warning: id_prefix is too long, only one new session will be possible\n");
1050 else if (strlen(session_id_prefix) >= 16)
1051 BIO_printf(bio_err,
1052 "warning: id_prefix is too long if you use SSLv2\n");
1053 if (!SSL_CTX_set_generate_session_id(ctx2, generate_session_id)) {
1054 BIO_printf(bio_err, "error setting 'id_prefix'\n");
1055 ERR_print_errors(bio_err);
1056 goto end;
1057 }
1058 BIO_printf(bio_err, "id_prefix '%s' set.\n", session_id_prefix);
1059 }
1060 SSL_CTX_set_quiet_shutdown(ctx2, 1);
1061 if (bugs)
1062 SSL_CTX_set_options(ctx2, SSL_OP_ALL);
1063 SSL_CTX_set_options(ctx2, off);
1064 /*
1065 * DTLS: partial reads end up discarding unread UDP bytes :-(
1066 * Setting read ahead solves this problem.
1067 */
1068 if (socket_type == SOCK_DGRAM)
1069 SSL_CTX_set_read_ahead(ctx2, 1);
1070
1071 if (state)
1072 SSL_CTX_set_info_callback(ctx2, apps_ssl_info_callback);
1073
1074 if (no_cache)
1075 SSL_CTX_set_session_cache_mode(ctx2, SSL_SESS_CACHE_OFF);
1076 else
1077 SSL_CTX_sess_set_cache_size(ctx2, 128);
1078
1079 if ((!SSL_CTX_load_verify_locations(ctx2, CAfile, CApath)) ||
1080 (!SSL_CTX_set_default_verify_paths(ctx2))) {
1081 ERR_print_errors(bio_err);
1082 }
1083 if (vpm)
1084 SSL_CTX_set1_param(ctx2, vpm);
1085 }
1086 if (next_proto.data)
1087 SSL_CTX_set_next_protos_advertised_cb(ctx, next_proto_cb, &next_proto);
1088 if (alpn_ctx.data)
1089 SSL_CTX_set_alpn_select_cb(ctx, alpn_cb, &alpn_ctx);
1090
1091 #ifndef OPENSSL_NO_DH
1092 if (!no_dhe) {
1093 DH *dh = NULL;
1094
1095 if (dhfile)
1096 dh = load_dh_param(dhfile);
1097 else if (s_cert_file)
1098 dh = load_dh_param(s_cert_file);
1099
1100 if (dh != NULL)
1101 BIO_printf(bio_s_out, "Setting temp DH parameters\n");
1102 else
1103 BIO_printf(bio_s_out, "Using auto DH parameters\n");
1104 (void) BIO_flush(bio_s_out);
1105
1106 if (dh == NULL)
1107 SSL_CTX_set_dh_auto(ctx, 1);
1108 else if (!SSL_CTX_set_tmp_dh(ctx, dh)) {
1109 BIO_printf(bio_err,
1110 "Error setting temp DH parameters\n");
1111 ERR_print_errors(bio_err);
1112 DH_free(dh);
1113 goto end;
1114 }
1115
1116 if (ctx2) {
1117 if (!dhfile) {
1118 DH *dh2 = NULL;
1119
1120 if (s_cert_file2 != NULL)
1121 dh2 = load_dh_param(s_cert_file2);
1122 if (dh2 != NULL) {
1123 BIO_printf(bio_s_out, "Setting temp DH parameters\n");
1124 (void) BIO_flush(bio_s_out);
1125
1126 DH_free(dh);
1127 dh = dh2;
1128 }
1129 }
1130 if (dh == NULL)
1131 SSL_CTX_set_dh_auto(ctx2, 1);
1132 else if (!SSL_CTX_set_tmp_dh(ctx2, dh)) {
1133 BIO_printf(bio_err,
1134 "Error setting temp DH parameters\n");
1135 ERR_print_errors(bio_err);
1136 DH_free(dh);
1137 goto end;
1138 }
1139 }
1140 DH_free(dh);
1141 }
1142 #endif
1143
1144 if (!no_ecdhe) {
1145 EC_KEY *ecdh = NULL;
1146
1147 if (named_curve) {
1148 int nid = OBJ_sn2nid(named_curve);
1149
1150 if (nid == 0) {
1151 BIO_printf(bio_err, "unknown curve name (%s)\n",
1152 named_curve);
1153 goto end;
1154 }
1155 ecdh = EC_KEY_new_by_curve_name(nid);
1156 if (ecdh == NULL) {
1157 BIO_printf(bio_err, "unable to create curve (%s)\n",
1158 named_curve);
1159 goto end;
1160 }
1161 }
1162 if (ecdh != NULL) {
1163 BIO_printf(bio_s_out, "Setting temp ECDH parameters\n");
1164 } else {
1165 BIO_printf(bio_s_out, "Using default temp ECDH parameters\n");
1166 ecdh = EC_KEY_new_by_curve_name(NID_X9_62_prime256v1);
1167 if (ecdh == NULL) {
1168 BIO_printf(bio_err, "unable to create curve (nistp256)\n");
1169 goto end;
1170 }
1171 }
1172 (void) BIO_flush(bio_s_out);
1173
1174 SSL_CTX_set_tmp_ecdh(ctx, ecdh);
1175 if (ctx2)
1176 SSL_CTX_set_tmp_ecdh(ctx2, ecdh);
1177 EC_KEY_free(ecdh);
1178 }
1179
1180 if (!set_cert_key_stuff(ctx, s_cert, s_key))
1181 goto end;
1182 if (ctx2 && !set_cert_key_stuff(ctx2, s_cert2, s_key2))
1183 goto end;
1184 if (s_dcert != NULL) {
1185 if (!set_cert_key_stuff(ctx, s_dcert, s_dkey))
1186 goto end;
1187 }
1188
1189 if (cipher != NULL) {
1190 if (!SSL_CTX_set_cipher_list(ctx, cipher)) {
1191 BIO_printf(bio_err, "error setting cipher list\n");
1192 ERR_print_errors(bio_err);
1193 goto end;
1194 }
1195 if (ctx2 && !SSL_CTX_set_cipher_list(ctx2, cipher)) {
1196 BIO_printf(bio_err, "error setting cipher list\n");
1197 ERR_print_errors(bio_err);
1198 goto end;
1199 }
1200 }
1201 SSL_CTX_set_verify(ctx, s_server_verify, verify_callback);
1202 SSL_CTX_set_session_id_context(ctx, (void *) &s_server_session_id_context,
1203 sizeof s_server_session_id_context);
1204
1205 /* Set DTLS cookie generation and verification callbacks */
1206 SSL_CTX_set_cookie_generate_cb(ctx, generate_cookie_callback);
1207 SSL_CTX_set_cookie_verify_cb(ctx, verify_cookie_callback);
1208
1209 if (ctx2) {
1210 SSL_CTX_set_verify(ctx2, s_server_verify, verify_callback);
1211 SSL_CTX_set_session_id_context(ctx2, (void *) &s_server_session_id_context,
1212 sizeof s_server_session_id_context);
1213
1214 tlsextcbp.biodebug = bio_s_out;
1215 SSL_CTX_set_tlsext_servername_callback(ctx2, ssl_servername_cb);
1216 SSL_CTX_set_tlsext_servername_arg(ctx2, &tlsextcbp);
1217 SSL_CTX_set_tlsext_servername_callback(ctx, ssl_servername_cb);
1218 SSL_CTX_set_tlsext_servername_arg(ctx, &tlsextcbp);
1219 }
1220
1221 if (CAfile != NULL) {
1222 SSL_CTX_set_client_CA_list(ctx, SSL_load_client_CA_file(CAfile));
1223 if (ctx2)
1224 SSL_CTX_set_client_CA_list(ctx2, SSL_load_client_CA_file(CAfile));
1225 }
1226 BIO_printf(bio_s_out, "ACCEPT\n");
1227 (void) BIO_flush(bio_s_out);
1228 if (www)
1229 do_server(port, socket_type, &accept_socket, www_body, context);
1230 else
1231 do_server(port, socket_type, &accept_socket, sv_body, context);
1232 print_stats(bio_s_out, ctx);
1233 ret = 0;
1234 end:
1235 if (ctx != NULL)
1236 SSL_CTX_free(ctx);
1237 if (s_cert)
1238 X509_free(s_cert);
1239 if (s_dcert)
1240 X509_free(s_dcert);
1241 if (s_key)
1242 EVP_PKEY_free(s_key);
1243 if (s_dkey)
1244 EVP_PKEY_free(s_dkey);
1245 free(pass);
1246 free(dpass);
1247 if (vpm)
1248 X509_VERIFY_PARAM_free(vpm);
1249 free(tlscstatp.host);
1250 free(tlscstatp.port);
1251 free(tlscstatp.path);
1252 if (ctx2 != NULL)
1253 SSL_CTX_free(ctx2);
1254 if (s_cert2)
1255 X509_free(s_cert2);
1256 if (s_key2)
1257 EVP_PKEY_free(s_key2);
1258 free(next_proto.data);
1259 free(alpn_ctx.data);
1260 if (bio_s_out != NULL) {
1261 BIO_free(bio_s_out);
1262 bio_s_out = NULL;
1263 }
1264
1265 return (ret);
1266 }
1267
1268 static void
1269 print_stats(BIO * bio, SSL_CTX * ssl_ctx)
1270 {
1271 BIO_printf(bio, "%4ld items in the session cache\n",
1272 SSL_CTX_sess_number(ssl_ctx));
1273 BIO_printf(bio, "%4ld client connects (SSL_connect())\n",
1274 SSL_CTX_sess_connect(ssl_ctx));
1275 BIO_printf(bio, "%4ld client renegotiates (SSL_connect())\n",
1276 SSL_CTX_sess_connect_renegotiate(ssl_ctx));
1277 BIO_printf(bio, "%4ld client connects that finished\n",
1278 SSL_CTX_sess_connect_good(ssl_ctx));
1279 BIO_printf(bio, "%4ld server accepts (SSL_accept())\n",
1280 SSL_CTX_sess_accept(ssl_ctx));
1281 BIO_printf(bio, "%4ld server renegotiates (SSL_accept())\n",
1282 SSL_CTX_sess_accept_renegotiate(ssl_ctx));
1283 BIO_printf(bio, "%4ld server accepts that finished\n",
1284 SSL_CTX_sess_accept_good(ssl_ctx));
1285 BIO_printf(bio, "%4ld session cache hits\n", SSL_CTX_sess_hits(ssl_ctx));
1286 BIO_printf(bio, "%4ld session cache misses\n", SSL_CTX_sess_misses(ssl_ctx));
1287 BIO_printf(bio, "%4ld session cache timeouts\n", SSL_CTX_sess_timeouts(ssl_ctx));
1288 BIO_printf(bio, "%4ld callback cache hits\n", SSL_CTX_sess_cb_hits(ssl_ctx));
1289 BIO_printf(bio, "%4ld cache full overflows (%ld allowed)\n",
1290 SSL_CTX_sess_cache_full(ssl_ctx),
1291 SSL_CTX_sess_get_cache_size(ssl_ctx));
1292 }
1293
1294 static int
1295 sv_body(char *hostname, int s, unsigned char *context)
1296 {
1297 char *buf = NULL;
1298 int ret = 1;
1299 int k, i;
1300 unsigned long l;
1301 SSL *con = NULL;
1302 BIO *sbio;
1303 struct timeval timeout;
1304
1305 if ((buf = malloc(bufsize)) == NULL) {
1306 BIO_printf(bio_err, "out of memory\n");
1307 goto err;
1308 }
1309 if (s_nbio) {
1310 if (!s_quiet)
1311 BIO_printf(bio_err, "turning on non blocking io\n");
1312 if (!BIO_socket_nbio(s, 1))
1313 ERR_print_errors(bio_err);
1314 }
1315
1316 if (con == NULL) {
1317 con = SSL_new(ctx);
1318 if (s_tlsextdebug) {
1319 SSL_set_tlsext_debug_callback(con, tlsext_cb);
1320 SSL_set_tlsext_debug_arg(con, bio_s_out);
1321 }
1322 if (s_tlsextstatus) {
1323 SSL_CTX_set_tlsext_status_cb(ctx, cert_status_cb);
1324 tlscstatp.err = bio_err;
1325 SSL_CTX_set_tlsext_status_arg(ctx, &tlscstatp);
1326 }
1327 if (context)
1328 SSL_set_session_id_context(con, context,
1329 strlen((char *) context));
1330 }
1331 SSL_clear(con);
1332
1333 if (SSL_version(con) == DTLS1_VERSION) {
1334
1335 sbio = BIO_new_dgram(s, BIO_NOCLOSE);
1336
1337 if (enable_timeouts) {
1338 timeout.tv_sec = 0;
1339 timeout.tv_usec = DGRAM_RCV_TIMEOUT;
1340 BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_RECV_TIMEOUT, 0, &timeout);
1341
1342 timeout.tv_sec = 0;
1343 timeout.tv_usec = DGRAM_SND_TIMEOUT;
1344 BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_SEND_TIMEOUT, 0, &timeout);
1345 }
1346 if (socket_mtu > 28) {
1347 SSL_set_options(con, SSL_OP_NO_QUERY_MTU);
1348 SSL_set_mtu(con, socket_mtu - 28);
1349 } else
1350 /* want to do MTU discovery */
1351 BIO_ctrl(sbio, BIO_CTRL_DGRAM_MTU_DISCOVER, 0, NULL);
1352
1353 /* turn on cookie exchange */
1354 SSL_set_options(con, SSL_OP_COOKIE_EXCHANGE);
1355 } else
1356 sbio = BIO_new_socket(s, BIO_NOCLOSE);
1357
1358 if (s_nbio_test) {
1359 BIO *test;
1360
1361 test = BIO_new(BIO_f_nbio_test());
1362 sbio = BIO_push(test, sbio);
1363 }
1364
1365 SSL_set_bio(con, sbio, sbio);
1366 SSL_set_accept_state(con);
1367 /* SSL_set_fd(con,s); */
1368
1369 if (s_debug) {
1370 SSL_set_debug(con, 1);
1371 BIO_set_callback(SSL_get_rbio(con), bio_dump_callback);
1372 BIO_set_callback_arg(SSL_get_rbio(con), (char *) bio_s_out);
1373 }
1374 if (s_msg) {
1375 SSL_set_msg_callback(con, msg_cb);
1376 SSL_set_msg_callback_arg(con, bio_s_out);
1377 }
1378 if (s_tlsextdebug) {
1379 SSL_set_tlsext_debug_callback(con, tlsext_cb);
1380 SSL_set_tlsext_debug_arg(con, bio_s_out);
1381 }
1382
1383 for (;;) {
1384 int read_from_terminal;
1385 int read_from_sslcon;
1386 struct pollfd pfd[2];
1387 int ptimeout;
1388
1389 read_from_terminal = 0;
1390 read_from_sslcon = SSL_pending(con);
1391
1392 if (!read_from_sslcon) {
1393 pfd[0].fd = fileno(stdin);
1394 pfd[0].events = POLLIN;
1395 pfd[1].fd = s;
1396 pfd[1].events = POLLIN;
1397
1398 if ((SSL_version(con) == DTLS1_VERSION) &&
1399 DTLSv1_get_timeout(con, &timeout))
1400 ptimeout = timeout.tv_sec * 1000 +
1401 timeout.tv_usec / 1000;
1402 else
1403 ptimeout = -1;
1404
1405 i = poll(pfd, 2, ptimeout);
1406
1407 if ((SSL_version(con) == DTLS1_VERSION) && DTLSv1_handle_timeout(con) > 0) {
1408 BIO_printf(bio_err, "TIMEOUT occured\n");
1409 }
1410 if (i <= 0)
1411 continue;
1412 if (pfd[0].revents) {
1413 if ((pfd[0].revents & (POLLERR|POLLNVAL)))
1414 continue;
1415 read_from_terminal = 1;
1416 }
1417 if (pfd[1].revents) {
1418 if ((pfd[1].revents & (POLLERR|POLLNVAL)))
1419 continue;
1420 read_from_sslcon = 1;
1421 }
1422 }
1423 if (read_from_terminal) {
1424 if (s_crlf) {
1425 int j, lf_num;
1426
1427 i = read(fileno(stdin), buf, bufsize / 2);
1428 lf_num = 0;
1429 /* both loops are skipped when i <= 0 */
1430 for (j = 0; j < i; j++)
1431 if (buf[j] == '\n')
1432 lf_num++;
1433 for (j = i - 1; j >= 0; j--) {
1434 buf[j + lf_num] = buf[j];
1435 if (buf[j] == '\n') {
1436 lf_num--;
1437 i++;
1438 buf[j + lf_num] = '\r';
1439 }
1440 }
1441 assert(lf_num == 0);
1442 } else
1443 i = read(fileno(stdin), buf, bufsize);
1444 if (!s_quiet) {
1445 if ((i <= 0) || (buf[0] == 'Q')) {
1446 BIO_printf(bio_s_out, "DONE\n");
1447 shutdown(s, SHUT_RD);
1448 close(s);
1449 close_accept_socket();
1450 ret = -11;
1451 goto err;
1452 }
1453 if ((i <= 0) || (buf[0] == 'q')) {
1454 BIO_printf(bio_s_out, "DONE\n");
1455 if (SSL_version(con) != DTLS1_VERSION) {
1456 shutdown(s, SHUT_RD);
1457 close(s);
1458 }
1459 /*
1460 * close_accept_socket(); ret= -11;
1461 */
1462 goto err;
1463 }
1464 if ((buf[0] == 'r') &&
1465 ((buf[1] == '\n') || (buf[1] == '\r'))) {
1466 SSL_renegotiate(con);
1467 i = SSL_do_handshake(con);
1468 printf("SSL_do_handshake -> %d\n", i);
1469 i = 0; /* 13; */
1470 continue;
1471 /*
1472 * RE-NEGOTIATE\n");
1473 */
1474 }
1475 if ((buf[0] == 'R') &&
1476 ((buf[1] == '\n') || (buf[1] == '\r'))) {
1477 SSL_set_verify(con,
1478 SSL_VERIFY_PEER | SSL_VERIFY_CLIENT_ONCE, NULL);
1479 SSL_renegotiate(con);
1480 i = SSL_do_handshake(con);
1481 printf("SSL_do_handshake -> %d\n", i);
1482 i = 0; /* 13; */
1483 continue;
1484 /*
1485 * RE-NEGOTIATE asking for client
1486 * cert\n");
1487 */
1488 }
1489 if (buf[0] == 'P') {
1490 static const char *str = "Lets print some clear text\n";
1491 BIO_write(SSL_get_wbio(con), str, strlen(str));
1492 }
1493 if (buf[0] == 'S') {
1494 print_stats(bio_s_out, SSL_get_SSL_CTX(con));
1495 }
1496 }
1497 l = k = 0;
1498 for (;;) {
1499 /* should do a select for the write */
1500 #ifdef RENEG
1501 {
1502 static count = 0;
1503 if (++count == 100) {
1504 count = 0;
1505 SSL_renegotiate(con);
1506 }
1507 }
1508 #endif
1509 k = SSL_write(con, &(buf[l]), (unsigned int) i);
1510 switch (SSL_get_error(con, k)) {
1511 case SSL_ERROR_NONE:
1512 break;
1513 case SSL_ERROR_WANT_WRITE:
1514 case SSL_ERROR_WANT_READ:
1515 case SSL_ERROR_WANT_X509_LOOKUP:
1516 BIO_printf(bio_s_out, "Write BLOCK\n");
1517 break;
1518 case SSL_ERROR_SYSCALL:
1519 case SSL_ERROR_SSL:
1520 BIO_printf(bio_s_out, "ERROR\n");
1521 ERR_print_errors(bio_err);
1522 ret = 1;
1523 goto err;
1524 /* break; */
1525 case SSL_ERROR_ZERO_RETURN:
1526 BIO_printf(bio_s_out, "DONE\n");
1527 ret = 1;
1528 goto err;
1529 }
1530 l += k;
1531 i -= k;
1532 if (i <= 0)
1533 break;
1534 }
1535 }
1536 if (read_from_sslcon) {
1537 if (!SSL_is_init_finished(con)) {
1538 i = init_ssl_connection(con);
1539
1540 if (i < 0) {
1541 ret = 0;
1542 goto err;
1543 } else if (i == 0) {
1544 ret = 1;
1545 goto err;
1546 }
1547 } else {
1548 again:
1549 i = SSL_read(con, (char *) buf, bufsize);
1550 switch (SSL_get_error(con, i)) {
1551 case SSL_ERROR_NONE: {
1552 int len, n;
1553 for (len = 0; len < i;) {
1554 do {
1555 n = write(fileno(stdout), buf + len, i - len);
1556 } while (n == -1 && errno == EINTR);
1557
1558 if (n < 0) {
1559 BIO_printf(bio_s_out, "ERROR\n");
1560 goto err;
1561 }
1562 len += n;
1563 }
1564 }
1565 if (SSL_pending(con))
1566 goto again;
1567 break;
1568 case SSL_ERROR_WANT_WRITE:
1569 case SSL_ERROR_WANT_READ:
1570 BIO_printf(bio_s_out, "Read BLOCK\n");
1571 break;
1572 case SSL_ERROR_SYSCALL:
1573 case SSL_ERROR_SSL:
1574 BIO_printf(bio_s_out, "ERROR\n");
1575 ERR_print_errors(bio_err);
1576 ret = 1;
1577 goto err;
1578 case SSL_ERROR_ZERO_RETURN:
1579 BIO_printf(bio_s_out, "DONE\n");
1580 ret = 1;
1581 goto err;
1582 }
1583 }
1584 }
1585 }
1586 err:
1587 if (con != NULL) {
1588 BIO_printf(bio_s_out, "shutting down SSL\n");
1589 SSL_set_shutdown(con, SSL_SENT_SHUTDOWN | SSL_RECEIVED_SHUTDOWN);
1590 SSL_free(con);
1591 }
1592 BIO_printf(bio_s_out, "CONNECTION CLOSED\n");
1593 if (buf != NULL) {
1594 explicit_bzero(buf, bufsize);
1595 free(buf);
1596 }
1597 if (ret >= 0)
1598 BIO_printf(bio_s_out, "ACCEPT\n");
1599 return (ret);
1600 }
1601
1602 static void
1603 close_accept_socket(void)
1604 {
1605 BIO_printf(bio_err, "shutdown accept socket\n");
1606 if (accept_socket >= 0) {
1607 shutdown(accept_socket, SHUT_RDWR);
1608 close(accept_socket);
1609 }
1610 }
1611
1612 static int
1613 init_ssl_connection(SSL * con)
1614 {
1615 int i;
1616 const char *str;
1617 X509 *peer;
1618 long verify_error;
1619 char buf[BUFSIZ];
1620 const unsigned char *next_proto_neg;
1621 unsigned next_proto_neg_len;
1622 unsigned char *exportedkeymat;
1623
1624 i = SSL_accept(con);
1625 if (i <= 0) {
1626 if (BIO_sock_should_retry(i)) {
1627 BIO_printf(bio_s_out, "DELAY\n");
1628 return (1);
1629 }
1630 BIO_printf(bio_err, "ERROR\n");
1631 verify_error = SSL_get_verify_result(con);
1632 if (verify_error != X509_V_OK) {
1633 BIO_printf(bio_err, "verify error:%s\n",
1634 X509_verify_cert_error_string(verify_error));
1635 } else
1636 ERR_print_errors(bio_err);
1637 return (0);
1638 }
1639 PEM_write_bio_SSL_SESSION(bio_s_out, SSL_get_session(con));
1640
1641 peer = SSL_get_peer_certificate(con);
1642 if (peer != NULL) {
1643 BIO_printf(bio_s_out, "Client certificate\n");
1644 PEM_write_bio_X509(bio_s_out, peer);
1645 X509_NAME_oneline(X509_get_subject_name(peer), buf, sizeof buf);
1646 BIO_printf(bio_s_out, "subject=%s\n", buf);
1647 X509_NAME_oneline(X509_get_issuer_name(peer), buf, sizeof buf);
1648 BIO_printf(bio_s_out, "issuer=%s\n", buf);
1649 X509_free(peer);
1650 }
1651 if (SSL_get_shared_ciphers(con, buf, sizeof buf) != NULL)
1652 BIO_printf(bio_s_out, "Shared ciphers:%s\n", buf);
1653 str = SSL_CIPHER_get_name(SSL_get_current_cipher(con));
1654 BIO_printf(bio_s_out, "CIPHER is %s\n", (str != NULL) ? str : "(NONE)");
1655
1656 SSL_get0_next_proto_negotiated(con, &next_proto_neg, &next_proto_neg_len);
1657 if (next_proto_neg) {
1658 BIO_printf(bio_s_out, "NEXTPROTO is ");
1659 BIO_write(bio_s_out, next_proto_neg, next_proto_neg_len);
1660 BIO_printf(bio_s_out, "\n");
1661 }
1662 #ifndef OPENSSL_NO_SRTP
1663 {
1664 SRTP_PROTECTION_PROFILE *srtp_profile
1665 = SSL_get_selected_srtp_profile(con);
1666
1667 if (srtp_profile)
1668 BIO_printf(bio_s_out, "SRTP Extension negotiated, profile=%s\n",
1669 srtp_profile->name);
1670 }
1671 #endif
1672 if (SSL_cache_hit(con))
1673 BIO_printf(bio_s_out, "Reused session-id\n");
1674 BIO_printf(bio_s_out, "Secure Renegotiation IS%s supported\n",
1675 SSL_get_secure_renegotiation_support(con) ? "" : " NOT");
1676 if (keymatexportlabel != NULL) {
1677 BIO_printf(bio_s_out, "Keying material exporter:\n");
1678 BIO_printf(bio_s_out, " Label: '%s'\n", keymatexportlabel);
1679 BIO_printf(bio_s_out, " Length: %i bytes\n",
1680 keymatexportlen);
1681 exportedkeymat = malloc(keymatexportlen);
1682 if (exportedkeymat != NULL) {
1683 if (!SSL_export_keying_material(con, exportedkeymat,
1684 keymatexportlen,
1685 keymatexportlabel,
1686 strlen(keymatexportlabel),
1687 NULL, 0, 0)) {
1688 BIO_printf(bio_s_out, " Error\n");
1689 } else {
1690 BIO_printf(bio_s_out, " Keying material: ");
1691 for (i = 0; i < keymatexportlen; i++)
1692 BIO_printf(bio_s_out, "%02X",
1693 exportedkeymat[i]);
1694 BIO_printf(bio_s_out, "\n");
1695 }
1696 free(exportedkeymat);
1697 }
1698 }
1699 return (1);
1700 }
1701
1702 #ifndef OPENSSL_NO_DH
1703 static DH *
1704 load_dh_param(const char *dhfile)
1705 {
1706 DH *ret = NULL;
1707 BIO *bio;
1708
1709 if ((bio = BIO_new_file(dhfile, "r")) == NULL)
1710 goto err;
1711 ret = PEM_read_bio_DHparams(bio, NULL, NULL, NULL);
1712 err:
1713 BIO_free(bio);
1714 return (ret);
1715 }
1716 #endif
1717
1718 static int
1719 www_body(char *hostname, int s, unsigned char *context)
1720 {
1721 char *buf = NULL;
1722 int ret = 1;
1723 int i, j, k, dot;
1724 SSL *con;
1725 const SSL_CIPHER *c;
1726 BIO *io, *ssl_bio, *sbio;
1727
1728 buf = malloc(bufsize);
1729 if (buf == NULL)
1730 return (0);
1731 io = BIO_new(BIO_f_buffer());
1732 ssl_bio = BIO_new(BIO_f_ssl());
1733 if ((io == NULL) || (ssl_bio == NULL))
1734 goto err;
1735
1736 if (s_nbio) {
1737 if (!s_quiet)
1738 BIO_printf(bio_err, "turning on non blocking io\n");
1739 if (!BIO_socket_nbio(s, 1))
1740 ERR_print_errors(bio_err);
1741 }
1742
1743 /* lets make the output buffer a reasonable size */
1744 if (!BIO_set_write_buffer_size(io, bufsize))
1745 goto err;
1746
1747 if ((con = SSL_new(ctx)) == NULL)
1748 goto err;
1749 if (s_tlsextdebug) {
1750 SSL_set_tlsext_debug_callback(con, tlsext_cb);
1751 SSL_set_tlsext_debug_arg(con, bio_s_out);
1752 }
1753 if (context)
1754 SSL_set_session_id_context(con, context,
1755 strlen((char *) context));
1756
1757 sbio = BIO_new_socket(s, BIO_NOCLOSE);
1758 if (s_nbio_test) {
1759 BIO *test;
1760
1761 test = BIO_new(BIO_f_nbio_test());
1762 sbio = BIO_push(test, sbio);
1763 }
1764 SSL_set_bio(con, sbio, sbio);
1765 SSL_set_accept_state(con);
1766
1767 /* SSL_set_fd(con,s); */
1768 BIO_set_ssl(ssl_bio, con, BIO_CLOSE);
1769 BIO_push(io, ssl_bio);
1770
1771 if (s_debug) {
1772 SSL_set_debug(con, 1);
1773 BIO_set_callback(SSL_get_rbio(con), bio_dump_callback);
1774 BIO_set_callback_arg(SSL_get_rbio(con), (char *) bio_s_out);
1775 }
1776 if (s_msg) {
1777 SSL_set_msg_callback(con, msg_cb);
1778 SSL_set_msg_callback_arg(con, bio_s_out);
1779 }
1780 for (;;) {
1781 i = BIO_gets(io, buf, bufsize - 1);
1782 if (i < 0) { /* error */
1783 if (!BIO_should_retry(io)) {
1784 if (!s_quiet)
1785 ERR_print_errors(bio_err);
1786 goto err;
1787 } else {
1788 BIO_printf(bio_s_out, "read R BLOCK\n");
1789 sleep(1);
1790 continue;
1791 }
1792 } else if (i == 0) { /* end of input */
1793 ret = 1;
1794 goto end;
1795 }
1796 /* else we have data */
1797 if (((www == 1) && (strncmp("GET ", buf, 4) == 0)) ||
1798 ((www == 2) && (strncmp("GET /stats ", buf, 11) == 0))) {
1799 char *p;
1800 X509 *peer;
1801 STACK_OF(SSL_CIPHER) * sk;
1802 static const char *space = " ";
1803
1804 BIO_puts(io, "HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n");
1805 BIO_puts(io, "<HTML><BODY BGCOLOR=\"#ffffff\">\n");
1806 BIO_puts(io, "<pre>\n");
1807 /* BIO_puts(io,SSLeay_version(SSLEAY_VERSION));*/
1808 BIO_puts(io, "\n");
1809 for (i = 0; i < local_argc; i++) {
1810 BIO_puts(io, local_argv[i]);
1811 BIO_write(io, " ", 1);
1812 }
1813 BIO_puts(io, "\n");
1814
1815 BIO_printf(io,
1816 "Secure Renegotiation IS%s supported\n",
1817 SSL_get_secure_renegotiation_support(con) ?
1818 "" : " NOT");
1819
1820 /*
1821 * The following is evil and should not really be
1822 * done
1823 */
1824 BIO_printf(io, "Ciphers supported in s_server binary\n");
1825 sk = SSL_get_ciphers(con);
1826 j = sk_SSL_CIPHER_num(sk);
1827 for (i = 0; i < j; i++) {
1828 c = sk_SSL_CIPHER_value(sk, i);
1829 BIO_printf(io, "%-11s:%-25s",
1830 SSL_CIPHER_get_version(c),
1831 SSL_CIPHER_get_name(c));
1832 if ((((i + 1) % 2) == 0) && (i + 1 != j))
1833 BIO_puts(io, "\n");
1834 }
1835 BIO_puts(io, "\n");
1836 p = SSL_get_shared_ciphers(con, buf, bufsize);
1837 if (p != NULL) {
1838 BIO_printf(io, "---\nCiphers common between both SSL end points:\n");
1839 j = i = 0;
1840 while (*p) {
1841 if (*p == ':') {
1842 BIO_write(io, space, 26 - j);
1843 i++;
1844 j = 0;
1845 BIO_write(io, ((i % 3) ? " " : "\n"), 1);
1846 } else {
1847 BIO_write(io, p, 1);
1848 j++;
1849 }
1850 p++;
1851 }
1852 BIO_puts(io, "\n");
1853 }
1854 BIO_printf(io, (SSL_cache_hit(con)
1855 ? "---\nReused, "
1856 : "---\nNew, "));
1857 c = SSL_get_current_cipher(con);
1858 BIO_printf(io, "%s, Cipher is %s\n",
1859 SSL_CIPHER_get_version(c),
1860 SSL_CIPHER_get_name(c));
1861 SSL_SESSION_print(io, SSL_get_session(con));
1862 BIO_printf(io, "---\n");
1863 print_stats(io, SSL_get_SSL_CTX(con));
1864 BIO_printf(io, "---\n");
1865 peer = SSL_get_peer_certificate(con);
1866 if (peer != NULL) {
1867 BIO_printf(io, "Client certificate\n");
1868 X509_print(io, peer);
1869 PEM_write_bio_X509(io, peer);
1870 } else
1871 BIO_puts(io, "no client certificate available\n");
1872 BIO_puts(io, "</BODY></HTML>\r\n\r\n");
1873 break;
1874 } else if ((www == 2 || www == 3)
1875 && (strncmp("GET /", buf, 5) == 0)) {
1876 BIO *file;
1877 char *p, *e;
1878 static const char *text = "HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n";
1879
1880 /* skip the '/' */
1881 p = &(buf[5]);
1882
1883 dot = 1;
1884 for (e = p; *e != '\0'; e++) {
1885 if (e[0] == ' ')
1886 break;
1887
1888 switch (dot) {
1889 case 1:
1890 dot = (e[0] == '.') ? 2 : 0;
1891 break;
1892 case 2:
1893 dot = (e[0] == '.') ? 3 : 0;
1894 break;
1895 case 3:
1896 dot = (e[0] == '/') ? -1 : 0;
1897 break;
1898 }
1899 if (dot == 0)
1900 dot = (e[0] == '/') ? 1 : 0;
1901 }
1902 dot = (dot == 3) || (dot == -1); /* filename contains
1903 * ".." component */
1904
1905 if (*e == '\0') {
1906 BIO_puts(io, text);
1907 BIO_printf(io, "'%s' is an invalid file name\r\n", p);
1908 break;
1909 }
1910 *e = '\0';
1911
1912 if (dot) {
1913 BIO_puts(io, text);
1914 BIO_printf(io, "'%s' contains '..' reference\r\n", p);
1915 break;
1916 }
1917 if (*p == '/') {
1918 BIO_puts(io, text);
1919 BIO_printf(io, "'%s' is an invalid path\r\n", p);
1920 break;
1921 }
1922 /* if a directory, do the index thang */
1923 if (app_isdir(p) > 0) {
1924 BIO_puts(io, text);
1925 BIO_printf(io, "'%s' is a directory\r\n", p);
1926 break;
1927 }
1928 if ((file = BIO_new_file(p, "r")) == NULL) {
1929 BIO_puts(io, text);
1930 BIO_printf(io, "Error opening '%s'\r\n", p);
1931 ERR_print_errors(io);
1932 break;
1933 }
1934 if (!s_quiet)
1935 BIO_printf(bio_err, "FILE:%s\n", p);
1936
1937 if (www == 2) {
1938 i = strlen(p);
1939 if (((i > 5) && (strcmp(&(p[i - 5]), ".html") == 0)) ||
1940 ((i > 4) && (strcmp(&(p[i - 4]), ".php") == 0)) ||
1941 ((i > 4) && (strcmp(&(p[i - 4]), ".htm") == 0)))
1942 BIO_puts(io, "HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n");
1943 else
1944 BIO_puts(io, "HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n");
1945 }
1946 /* send the file */
1947 for (;;) {
1948 i = BIO_read(file, buf, bufsize);
1949 if (i <= 0)
1950 break;
1951
1952 #ifdef RENEG
1953 total_bytes += i;
1954 fprintf(stderr, "%d\n", i);
1955 if (total_bytes > 3 * 1024) {
1956 total_bytes = 0;
1957 fprintf(stderr, "RENEGOTIATE\n");
1958 SSL_renegotiate(con);
1959 }
1960 #endif
1961
1962 for (j = 0; j < i;) {
1963 #ifdef RENEG
1964 {
1965 static count = 0;
1966 if (++count == 13) {
1967 SSL_renegotiate(con);
1968 }
1969 }
1970 #endif
1971 k = BIO_write(io, &(buf[j]), i - j);
1972 if (k <= 0) {
1973 if (!BIO_should_retry(io))
1974 goto write_error;
1975 else {
1976 BIO_printf(bio_s_out, "rwrite W BLOCK\n");
1977 }
1978 } else {
1979 j += k;
1980 }
1981 }
1982 }
1983 write_error:
1984 BIO_free(file);
1985 break;
1986 }
1987 }
1988
1989 for (;;) {
1990 i = (int) BIO_flush(io);
1991 if (i <= 0) {
1992 if (!BIO_should_retry(io))
1993 break;
1994 } else
1995 break;
1996 }
1997 end:
1998 /* make sure we re-use sessions */
1999 SSL_set_shutdown(con, SSL_SENT_SHUTDOWN | SSL_RECEIVED_SHUTDOWN);
2000
2001 err:
2002
2003 if (ret >= 0)
2004 BIO_printf(bio_s_out, "ACCEPT\n");
2005
2006 free(buf);
2007 if (io != NULL)
2008 BIO_free_all(io);
2009 /* if (ssl_bio != NULL) BIO_free(ssl_bio);*/
2010 return (ret);
2011 }
2012
2013 #define MAX_SESSION_ID_ATTEMPTS 10
2014 static int
2015 generate_session_id(const SSL * ssl, unsigned char *id,
2016 unsigned int *id_len)
2017 {
2018 unsigned int count = 0;
2019 do {
2020 arc4random_buf(id, *id_len);
2021 /*
2022 * Prefix the session_id with the required prefix. NB: If our
2023 * prefix is too long, clip it - but there will be worse
2024 * effects anyway, eg. the server could only possibly create
2025 * 1 session ID (ie. the prefix!) so all future session
2026 * negotiations will fail due to conflicts.
2027 */
2028 memcpy(id, session_id_prefix,
2029 (strlen(session_id_prefix) < *id_len) ?
2030 strlen(session_id_prefix) : *id_len);
2031 }
2032 while (SSL_has_matching_session_id(ssl, id, *id_len) &&
2033 (++count < MAX_SESSION_ID_ATTEMPTS));
2034 if (count >= MAX_SESSION_ID_ATTEMPTS)
2035 return 0;
2036 return 1;
2037 }
Unleashed OS