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1 /*
2 * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
3 *
4 * Licensed under the OpenSSL license (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
8 */
9
10 /* ====================================================================
11 * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
12 * ECC cipher suite support in OpenSSL originally developed by
13 * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project.
14 */
15 /* ====================================================================
16 * Copyright 2005 Nokia. All rights reserved.
17 *
18 * The portions of the attached software ("Contribution") is developed by
19 * Nokia Corporation and is licensed pursuant to the OpenSSL open source
20 * license.
21 *
22 * The Contribution, originally written by Mika Kousa and Pasi Eronen of
23 * Nokia Corporation, consists of the "PSK" (Pre-Shared Key) ciphersuites
24 * support (see RFC 4279) to OpenSSL.
25 *
26 * No patent licenses or other rights except those expressly stated in
27 * the OpenSSL open source license shall be deemed granted or received
28 * expressly, by implication, estoppel, or otherwise.
29 *
30 * No assurances are provided by Nokia that the Contribution does not
31 * infringe the patent or other intellectual property rights of any third
32 * party or that the license provides you with all the necessary rights
33 * to make use of the Contribution.
34 *
35 * THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. IN
36 * ADDITION TO THE DISCLAIMERS INCLUDED IN THE LICENSE, NOKIA
37 * SPECIFICALLY DISCLAIMS ANY LIABILITY FOR CLAIMS BROUGHT BY YOU OR ANY
38 * OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR
39 * OTHERWISE.
40 */
41
42 #include <ctype.h>
43 #include <stdio.h>
44 #include <stdlib.h>
45 #include <string.h>
46 #if defined(_WIN32)
47 /* Included before async.h to avoid some warnings */
48 # include <windows.h>
49 #endif
50
51 #include <openssl/e_os2.h>
52 #include <openssl/async.h>
53 #include <openssl/ssl.h>
54
55 #ifndef OPENSSL_NO_SOCK
56
57 /*
58 * With IPv6, it looks like Digital has mixed up the proper order of
59 * recursive header file inclusion, resulting in the compiler complaining
60 * that u_int isn't defined, but only if _POSIX_C_SOURCE is defined, which is
61 * needed to have fileno() declared correctly... So let's define u_int
62 */
63 #if defined(OPENSSL_SYS_VMS_DECC) && !defined(__U_INT)
64 # define __U_INT
65 typedef unsigned int u_int;
66 #endif
67
68 #include <openssl/lhash.h>
69 #include <openssl/bn.h>
70 #define USE_SOCKETS
71 #include "apps.h"
72 #include <openssl/err.h>
73 #include <openssl/pem.h>
74 #include <openssl/x509.h>
75 #include <openssl/ssl.h>
76 #include <openssl/rand.h>
77 #include <openssl/ocsp.h>
78 #ifndef OPENSSL_NO_DH
79 # include <openssl/dh.h>
80 #endif
81 #ifndef OPENSSL_NO_RSA
82 # include <openssl/rsa.h>
83 #endif
84 #ifndef OPENSSL_NO_SRP
85 # include <openssl/srp.h>
86 #endif
87 #include "s_apps.h"
88 #include "timeouts.h"
89 #ifdef CHARSET_EBCDIC
90 #include <openssl/ebcdic.h>
91 #endif
92
93 static int not_resumable_sess_cb(SSL *s, int is_forward_secure);
94 static int sv_body(int s, int stype, unsigned char *context);
95 static int www_body(int s, int stype, unsigned char *context);
96 static int rev_body(int s, int stype, unsigned char *context);
97 static void close_accept_socket(void);
98 static int init_ssl_connection(SSL *s);
99 static void print_stats(BIO *bp, SSL_CTX *ctx);
100 static int generate_session_id(const SSL *ssl, unsigned char *id,
101 unsigned int *id_len);
102 static void init_session_cache_ctx(SSL_CTX *sctx);
103 static void free_sessions(void);
104 #ifndef OPENSSL_NO_DH
105 static DH *load_dh_param(const char *dhfile);
106 #endif
107
108 /* static int load_CA(SSL_CTX *ctx, char *file);*/
109
110 static const int bufsize = 16 * 1024;
111 static int accept_socket = -1;
112
113 #define TEST_CERT "server.pem"
114 #define TEST_CERT2 "server2.pem"
115
116 static int s_nbio = 0;
117 static int s_nbio_test = 0;
118 static int s_crlf = 0;
119 static SSL_CTX *ctx = NULL;
120 static SSL_CTX *ctx2 = NULL;
121 static int www = 0;
122
123 static BIO *bio_s_out = NULL;
124 static BIO *bio_s_msg = NULL;
125 static int s_debug = 0;
126 static int s_tlsextdebug = 0;
127 static int s_msg = 0;
128 static int s_quiet = 0;
129 static int s_ign_eof = 0;
130 static int s_brief = 0;
131
132 static char *keymatexportlabel = NULL;
133 static int keymatexportlen = 20;
134
135 static int async = 0;
136
137 static const char *session_id_prefix = NULL;
138
139 #ifndef OPENSSL_NO_DTLS
140 static int enable_timeouts = 0;
141 static long socket_mtu;
142
143 #endif
144 static int dtlslisten = 0;
145
146 #ifndef OPENSSL_NO_PSK
147 static char *psk_identity = "Client_identity";
148 char *psk_key = NULL; /* by default PSK is not used */
149
150 static unsigned int psk_server_cb(SSL *ssl, const char *identity,
151 unsigned char *psk,
152 unsigned int max_psk_len)
153 {
154 long key_len = 0;
155 unsigned char *key;
156
157 if (s_debug)
158 BIO_printf(bio_s_out, "psk_server_cb\n");
159 if (!identity) {
160 BIO_printf(bio_err, "Error: client did not send PSK identity\n");
161 goto out_err;
162 }
163 if (s_debug)
164 BIO_printf(bio_s_out, "identity_len=%d identity=%s\n",
165 (int)strlen(identity), identity);
166
167 /* here we could lookup the given identity e.g. from a database */
168 if (strcmp(identity, psk_identity) != 0) {
169 BIO_printf(bio_s_out, "PSK error: client identity not found"
170 " (got '%s' expected '%s')\n", identity, psk_identity);
171 goto out_err;
172 }
173 if (s_debug)
174 BIO_printf(bio_s_out, "PSK client identity found\n");
175
176 /* convert the PSK key to binary */
177 key = OPENSSL_hexstr2buf(psk_key, &key_len);
178 if (key == NULL) {
179 BIO_printf(bio_err, "Could not convert PSK key '%s' to buffer\n",
180 psk_key);
181 return 0;
182 }
183 if (key_len > (int)max_psk_len) {
184 BIO_printf(bio_err,
185 "psk buffer of callback is too small (%d) for key (%ld)\n",
186 max_psk_len, key_len);
187 OPENSSL_free(key);
188 return 0;
189 }
190
191 memcpy(psk, key, key_len);
192 OPENSSL_free(key);
193
194 if (s_debug)
195 BIO_printf(bio_s_out, "fetched PSK len=%ld\n", key_len);
196 return key_len;
197 out_err:
198 if (s_debug)
199 BIO_printf(bio_err, "Error in PSK server callback\n");
200 (void)BIO_flush(bio_err);
201 (void)BIO_flush(bio_s_out);
202 return 0;
203 }
204 #endif
205
206 #ifndef OPENSSL_NO_SRP
207 /* This is a context that we pass to callbacks */
208 typedef struct srpsrvparm_st {
209 char *login;
210 SRP_VBASE *vb;
211 SRP_user_pwd *user;
212 } srpsrvparm;
213
214 /*
215 * This callback pretends to require some asynchronous logic in order to
216 * obtain a verifier. When the callback is called for a new connection we
217 * return with a negative value. This will provoke the accept etc to return
218 * with an LOOKUP_X509. The main logic of the reinvokes the suspended call
219 * (which would normally occur after a worker has finished) and we set the
220 * user parameters.
221 */
222 static int ssl_srp_server_param_cb(SSL *s, int *ad, void *arg)
223 {
224 srpsrvparm *p = (srpsrvparm *) arg;
225 int ret = SSL3_AL_FATAL;
226
227 if (p->login == NULL && p->user == NULL) {
228 p->login = SSL_get_srp_username(s);
229 BIO_printf(bio_err, "SRP username = \"%s\"\n", p->login);
230 return (-1);
231 }
232
233 if (p->user == NULL) {
234 BIO_printf(bio_err, "User %s doesn't exist\n", p->login);
235 goto err;
236 }
237
238 if (SSL_set_srp_server_param
239 (s, p->user->N, p->user->g, p->user->s, p->user->v,
240 p->user->info) < 0) {
241 *ad = SSL_AD_INTERNAL_ERROR;
242 goto err;
243 }
244 BIO_printf(bio_err,
245 "SRP parameters set: username = \"%s\" info=\"%s\" \n",
246 p->login, p->user->info);
247 ret = SSL_ERROR_NONE;
248
249 err:
250 SRP_user_pwd_free(p->user);
251 p->user = NULL;
252 p->login = NULL;
253 return ret;
254 }
255
256 #endif
257
258 static int local_argc = 0;
259 static char **local_argv;
260
261 #ifdef CHARSET_EBCDIC
262 static int ebcdic_new(BIO *bi);
263 static int ebcdic_free(BIO *a);
264 static int ebcdic_read(BIO *b, char *out, int outl);
265 static int ebcdic_write(BIO *b, const char *in, int inl);
266 static long ebcdic_ctrl(BIO *b, int cmd, long num, void *ptr);
267 static int ebcdic_gets(BIO *bp, char *buf, int size);
268 static int ebcdic_puts(BIO *bp, const char *str);
269
270 # define BIO_TYPE_EBCDIC_FILTER (18|0x0200)
271 static BIO_METHOD *methods_ebcdic = NULL;
272
273 /* This struct is "unwarranted chumminess with the compiler." */
274 typedef struct {
275 size_t alloced;
276 char buff[1];
277 } EBCDIC_OUTBUFF;
278
279 static const BIO_METHOD *BIO_f_ebcdic_filter()
280 {
281 if (methods_ebcdic == NULL) {
282 methods_ebcdic = BIO_meth_new(BIO_TYPE_EBCDIC_FILTER,
283 "EBCDIC/ASCII filter");
284 if (methods_ebcdic == NULL
285 || !BIO_meth_set_write(methods_ebcdic, ebcdic_write)
286 || !BIO_meth_set_read(methods_ebcdic, ebcdic_read)
287 || !BIO_meth_set_puts(methods_ebcdic, ebcdic_puts)
288 || !BIO_meth_set_gets(methods_ebcdic, ebcdic_gets)
289 || !BIO_meth_set_ctrl(methods_ebcdic, ebcdic_ctrl)
290 || !BIO_meth_set_create(methods_ebcdic, ebcdic_new)
291 || !BIO_meth_set_destroy(methods_ebcdic, ebcdic_free))
292 return NULL;
293 }
294 return methods_ebcdic;
295 }
296
297 static int ebcdic_new(BIO *bi)
298 {
299 EBCDIC_OUTBUFF *wbuf;
300
301 wbuf = app_malloc(sizeof(*wbuf) + 1024, "ebcdic wbuf");
302 wbuf->alloced = 1024;
303 wbuf->buff[0] = '\0';
304
305 BIO_set_data(bi, wbuf);
306 BIO_set_init(bi, 1);
307 return 1;
308 }
309
310 static int ebcdic_free(BIO *a)
311 {
312 EBCDIC_OUTBUFF *wbuf;
313
314 if (a == NULL)
315 return 0;
316 wbuf = BIO_get_data(a);
317 OPENSSL_free(wbuf);
318 BIO_set_data(a, NULL);
319 BIO_set_init(a, 0);
320
321 return 1;
322 }
323
324 static int ebcdic_read(BIO *b, char *out, int outl)
325 {
326 int ret = 0;
327 BIO *next = BIO_next(b);
328
329 if (out == NULL || outl == 0)
330 return (0);
331 if (next == NULL)
332 return (0);
333
334 ret = BIO_read(next, out, outl);
335 if (ret > 0)
336 ascii2ebcdic(out, out, ret);
337 return ret;
338 }
339
340 static int ebcdic_write(BIO *b, const char *in, int inl)
341 {
342 EBCDIC_OUTBUFF *wbuf;
343 BIO *next = BIO_next(b);
344 int ret = 0;
345 int num;
346
347 if ((in == NULL) || (inl <= 0))
348 return (0);
349 if (next == NULL)
350 return 0;
351
352 wbuf = (EBCDIC_OUTBUFF *) BIO_get_data(b);
353
354 if (inl > (num = wbuf->alloced)) {
355 num = num + num; /* double the size */
356 if (num < inl)
357 num = inl;
358 OPENSSL_free(wbuf);
359 wbuf = app_malloc(sizeof(*wbuf) + num, "grow ebcdic wbuf");
360
361 wbuf->alloced = num;
362 wbuf->buff[0] = '\0';
363
364 BIO_set_data(b, wbuf);
365 }
366
367 ebcdic2ascii(wbuf->buff, in, inl);
368
369 ret = BIO_write(next, wbuf->buff, inl);
370
371 return (ret);
372 }
373
374 static long ebcdic_ctrl(BIO *b, int cmd, long num, void *ptr)
375 {
376 long ret;
377 BIO *next = BIO_next(b);
378
379 if (next == NULL)
380 return (0);
381 switch (cmd) {
382 case BIO_CTRL_DUP:
383 ret = 0L;
384 break;
385 default:
386 ret = BIO_ctrl(next, cmd, num, ptr);
387 break;
388 }
389 return (ret);
390 }
391
392 static int ebcdic_gets(BIO *bp, char *buf, int size)
393 {
394 int i, ret = 0;
395 BIO *next = BIO_next(bp);
396
397 if (next == NULL)
398 return 0;
399 /* return(BIO_gets(bp->next_bio,buf,size));*/
400 for (i = 0; i < size - 1; ++i) {
401 ret = ebcdic_read(bp, &buf[i], 1);
402 if (ret <= 0)
403 break;
404 else if (buf[i] == '\n') {
405 ++i;
406 break;
407 }
408 }
409 if (i < size)
410 buf[i] = '\0';
411 return (ret < 0 && i == 0) ? ret : i;
412 }
413
414 static int ebcdic_puts(BIO *bp, const char *str)
415 {
416 if (BIO_next(bp) == NULL)
417 return 0;
418 return ebcdic_write(bp, str, strlen(str));
419 }
420 #endif
421
422 /* This is a context that we pass to callbacks */
423 typedef struct tlsextctx_st {
424 char *servername;
425 BIO *biodebug;
426 int extension_error;
427 } tlsextctx;
428
429 static int ssl_servername_cb(SSL *s, int *ad, void *arg)
430 {
431 tlsextctx *p = (tlsextctx *) arg;
432 const char *servername = SSL_get_servername(s, TLSEXT_NAMETYPE_host_name);
433 if (servername && p->biodebug)
434 BIO_printf(p->biodebug, "Hostname in TLS extension: \"%s\"\n",
435 servername);
436
437 if (!p->servername)
438 return SSL_TLSEXT_ERR_NOACK;
439
440 if (servername) {
441 if (strcasecmp(servername, p->servername))
442 return p->extension_error;
443 if (ctx2) {
444 BIO_printf(p->biodebug, "Switching server context.\n");
445 SSL_set_SSL_CTX(s, ctx2);
446 }
447 }
448 return SSL_TLSEXT_ERR_OK;
449 }
450
451 /* Structure passed to cert status callback */
452
453 typedef struct tlsextstatusctx_st {
454 /* Default responder to use */
455 char *host, *path, *port;
456 int use_ssl;
457 int timeout;
458 int verbose;
459 } tlsextstatusctx;
460
461 static tlsextstatusctx tlscstatp = { NULL, NULL, NULL, 0, -1, 0 };
462
463 #ifndef OPENSSL_NO_OCSP
464 /*
465 * Certificate Status callback. This is called when a client includes a
466 * certificate status request extension. This is a simplified version. It
467 * examines certificates each time and makes one OCSP responder query for
468 * each request. A full version would store details such as the OCSP
469 * certificate IDs and minimise the number of OCSP responses by caching them
470 * until they were considered "expired".
471 */
472
473 static int cert_status_cb(SSL *s, void *arg)
474 {
475 tlsextstatusctx *srctx = arg;
476 char *host = NULL, *port = NULL, *path = NULL;
477 int use_ssl;
478 unsigned char *rspder = NULL;
479 int rspderlen;
480 STACK_OF(OPENSSL_STRING) *aia = NULL;
481 X509 *x = NULL;
482 X509_STORE_CTX *inctx = NULL;
483 X509_OBJECT *obj;
484 OCSP_REQUEST *req = NULL;
485 OCSP_RESPONSE *resp = NULL;
486 OCSP_CERTID *id = NULL;
487 STACK_OF(X509_EXTENSION) *exts;
488 int ret = SSL_TLSEXT_ERR_NOACK;
489 int i;
490
491 if (srctx->verbose)
492 BIO_puts(bio_err, "cert_status: callback called\n");
493 /* Build up OCSP query from server certificate */
494 x = SSL_get_certificate(s);
495 aia = X509_get1_ocsp(x);
496 if (aia) {
497 if (!OCSP_parse_url(sk_OPENSSL_STRING_value(aia, 0),
498 &host, &port, &path, &use_ssl)) {
499 BIO_puts(bio_err, "cert_status: can't parse AIA URL\n");
500 goto err;
501 }
502 if (srctx->verbose)
503 BIO_printf(bio_err, "cert_status: AIA URL: %s\n",
504 sk_OPENSSL_STRING_value(aia, 0));
505 } else {
506 if (!srctx->host) {
507 BIO_puts(bio_err,
508 "cert_status: no AIA and no default responder URL\n");
509 goto done;
510 }
511 host = srctx->host;
512 path = srctx->path;
513 port = srctx->port;
514 use_ssl = srctx->use_ssl;
515 }
516
517 inctx = X509_STORE_CTX_new();
518 if (inctx == NULL)
519 goto err;
520 if (!X509_STORE_CTX_init(inctx,
521 SSL_CTX_get_cert_store(SSL_get_SSL_CTX(s)),
522 NULL, NULL))
523 goto err;
524 obj = X509_STORE_CTX_get_obj_by_subject(inctx, X509_LU_X509,
525 X509_get_issuer_name(x));
526 if (obj == NULL) {
527 BIO_puts(bio_err, "cert_status: Can't retrieve issuer certificate.\n");
528 goto done;
529 }
530 id = OCSP_cert_to_id(NULL, x, X509_OBJECT_get0_X509(obj));
531 X509_OBJECT_free(obj);
532 if (!id)
533 goto err;
534 req = OCSP_REQUEST_new();
535 if (req == NULL)
536 goto err;
537 if (!OCSP_request_add0_id(req, id))
538 goto err;
539 id = NULL;
540 /* Add any extensions to the request */
541 SSL_get_tlsext_status_exts(s, &exts);
542 for (i = 0; i < sk_X509_EXTENSION_num(exts); i++) {
543 X509_EXTENSION *ext = sk_X509_EXTENSION_value(exts, i);
544 if (!OCSP_REQUEST_add_ext(req, ext, -1))
545 goto err;
546 }
547 resp = process_responder(req, host, path, port, use_ssl, NULL,
548 srctx->timeout);
549 if (!resp) {
550 BIO_puts(bio_err, "cert_status: error querying responder\n");
551 goto done;
552 }
553 rspderlen = i2d_OCSP_RESPONSE(resp, &rspder);
554 if (rspderlen <= 0)
555 goto err;
556 SSL_set_tlsext_status_ocsp_resp(s, rspder, rspderlen);
557 if (srctx->verbose) {
558 BIO_puts(bio_err, "cert_status: ocsp response sent:\n");
559 OCSP_RESPONSE_print(bio_err, resp, 2);
560 }
561 ret = SSL_TLSEXT_ERR_OK;
562 goto done;
563
564 err:
565 ret = SSL_TLSEXT_ERR_ALERT_FATAL;
566 done:
567 if (ret != SSL_TLSEXT_ERR_OK)
568 ERR_print_errors(bio_err);
569 if (aia) {
570 OPENSSL_free(host);
571 OPENSSL_free(path);
572 OPENSSL_free(port);
573 X509_email_free(aia);
574 }
575 OCSP_CERTID_free(id);
576 OCSP_REQUEST_free(req);
577 OCSP_RESPONSE_free(resp);
578 X509_STORE_CTX_free(inctx);
579 return ret;
580 }
581 #endif
582
583 #ifndef OPENSSL_NO_NEXTPROTONEG
584 /* This is the context that we pass to next_proto_cb */
585 typedef struct tlsextnextprotoctx_st {
586 unsigned char *data;
587 unsigned int len;
588 } tlsextnextprotoctx;
589
590 static int next_proto_cb(SSL *s, const unsigned char **data,
591 unsigned int *len, void *arg)
592 {
593 tlsextnextprotoctx *next_proto = arg;
594
595 *data = next_proto->data;
596 *len = next_proto->len;
597
598 return SSL_TLSEXT_ERR_OK;
599 }
600 #endif /* ndef OPENSSL_NO_NEXTPROTONEG */
601
602 /* This the context that we pass to alpn_cb */
603 typedef struct tlsextalpnctx_st {
604 unsigned char *data;
605 size_t len;
606 } tlsextalpnctx;
607
608 static int alpn_cb(SSL *s, const unsigned char **out, unsigned char *outlen,
609 const unsigned char *in, unsigned int inlen, void *arg)
610 {
611 tlsextalpnctx *alpn_ctx = arg;
612
613 if (!s_quiet) {
614 /* We can assume that |in| is syntactically valid. */
615 unsigned int i;
616 BIO_printf(bio_s_out, "ALPN protocols advertised by the client: ");
617 for (i = 0; i < inlen;) {
618 if (i)
619 BIO_write(bio_s_out, ", ", 2);
620 BIO_write(bio_s_out, &in[i + 1], in[i]);
621 i += in[i] + 1;
622 }
623 BIO_write(bio_s_out, "\n", 1);
624 }
625
626 if (SSL_select_next_proto
627 ((unsigned char **)out, outlen, alpn_ctx->data, alpn_ctx->len, in,
628 inlen) != OPENSSL_NPN_NEGOTIATED) {
629 return SSL_TLSEXT_ERR_NOACK;
630 }
631
632 if (!s_quiet) {
633 BIO_printf(bio_s_out, "ALPN protocols selected: ");
634 BIO_write(bio_s_out, *out, *outlen);
635 BIO_write(bio_s_out, "\n", 1);
636 }
637
638 return SSL_TLSEXT_ERR_OK;
639 }
640
641 static int not_resumable_sess_cb(SSL *s, int is_forward_secure)
642 {
643 /* disable resumption for sessions with forward secure ciphers */
644 return is_forward_secure;
645 }
646
647 #ifndef OPENSSL_NO_SRP
648 static srpsrvparm srp_callback_parm;
649 #endif
650 #ifndef OPENSSL_NO_SRTP
651 static char *srtp_profiles = NULL;
652 #endif
653
654 typedef enum OPTION_choice {
655 OPT_ERR = -1, OPT_EOF = 0, OPT_HELP, OPT_ENGINE,
656 OPT_4, OPT_6, OPT_ACCEPT, OPT_PORT, OPT_UNIX, OPT_UNLINK, OPT_NACCEPT,
657 OPT_VERIFY, OPT_UPPER_V_VERIFY, OPT_CONTEXT, OPT_CERT, OPT_CRL,
658 OPT_CRL_DOWNLOAD, OPT_SERVERINFO, OPT_CERTFORM, OPT_KEY, OPT_KEYFORM,
659 OPT_PASS, OPT_CERT_CHAIN, OPT_DHPARAM, OPT_DCERTFORM, OPT_DCERT,
660 OPT_DKEYFORM, OPT_DPASS, OPT_DKEY, OPT_DCERT_CHAIN, OPT_NOCERT,
661 OPT_CAPATH, OPT_NOCAPATH, OPT_CHAINCAPATH, OPT_VERIFYCAPATH, OPT_NO_CACHE,
662 OPT_EXT_CACHE, OPT_CRLFORM, OPT_VERIFY_RET_ERROR, OPT_VERIFY_QUIET,
663 OPT_BUILD_CHAIN, OPT_CAFILE, OPT_NOCAFILE, OPT_CHAINCAFILE,
664 OPT_VERIFYCAFILE, OPT_NBIO, OPT_NBIO_TEST, OPT_IGN_EOF, OPT_NO_IGN_EOF,
665 OPT_DEBUG, OPT_TLSEXTDEBUG, OPT_STATUS, OPT_STATUS_VERBOSE,
666 OPT_STATUS_TIMEOUT, OPT_STATUS_URL, OPT_MSG, OPT_MSGFILE, OPT_TRACE,
667 OPT_SECURITY_DEBUG, OPT_SECURITY_DEBUG_VERBOSE, OPT_STATE, OPT_CRLF,
668 OPT_QUIET, OPT_BRIEF, OPT_NO_DHE,
669 OPT_NO_RESUME_EPHEMERAL, OPT_PSK_HINT, OPT_PSK, OPT_SRPVFILE,
670 OPT_SRPUSERSEED, OPT_REV, OPT_WWW, OPT_UPPER_WWW, OPT_HTTP, OPT_ASYNC,
671 OPT_SSL_CONFIG, OPT_SPLIT_SEND_FRAG, OPT_MAX_PIPELINES, OPT_READ_BUF,
672 OPT_SSL3, OPT_TLS1_3, OPT_TLS1_2, OPT_TLS1_1, OPT_TLS1, OPT_DTLS, OPT_DTLS1,
673 OPT_DTLS1_2, OPT_TIMEOUT, OPT_MTU, OPT_LISTEN,
674 OPT_ID_PREFIX, OPT_RAND, OPT_SERVERNAME, OPT_SERVERNAME_FATAL,
675 OPT_CERT2, OPT_KEY2, OPT_NEXTPROTONEG, OPT_ALPN,
676 OPT_SRTP_PROFILES, OPT_KEYMATEXPORT, OPT_KEYMATEXPORTLEN,
677 OPT_S_ENUM,
678 OPT_V_ENUM,
679 OPT_X_ENUM
680 } OPTION_CHOICE;
681
682 const OPTIONS s_server_options[] = {
683 {"help", OPT_HELP, '-', "Display this summary"},
684 {"port", OPT_PORT, 'p',
685 "TCP/IP port to listen on for connections (default is " PORT ")"},
686 {"accept", OPT_ACCEPT, 's',
687 "TCP/IP optional host and port to listen on for connections (default is *:" PORT ")"},
688 #ifdef AF_UNIX
689 {"unix", OPT_UNIX, 's', "Unix domain socket to accept on"},
690 #endif
691 {"4", OPT_4, '-', "Use IPv4 only"},
692 {"6", OPT_6, '-', "Use IPv6 only"},
693 #ifdef AF_UNIX
694 {"unlink", OPT_UNLINK, '-', "For -unix, unlink existing socket first"},
695 #endif
696 {"context", OPT_CONTEXT, 's', "Set session ID context"},
697 {"verify", OPT_VERIFY, 'n', "Turn on peer certificate verification"},
698 {"Verify", OPT_UPPER_V_VERIFY, 'n',
699 "Turn on peer certificate verification, must have a cert"},
700 {"cert", OPT_CERT, '<', "Certificate file to use; default is " TEST_CERT},
701 {"naccept", OPT_NACCEPT, 'p', "Terminate after #num connections"},
702 {"serverinfo", OPT_SERVERINFO, 's',
703 "PEM serverinfo file for certificate"},
704 {"certform", OPT_CERTFORM, 'F',
705 "Certificate format (PEM or DER) PEM default"},
706 {"key", OPT_KEY, '<',
707 "Private Key if not in -cert; default is " TEST_CERT},
708 {"keyform", OPT_KEYFORM, 'f',
709 "Key format (PEM, DER or ENGINE) PEM default"},
710 {"pass", OPT_PASS, 's', "Private key file pass phrase source"},
711 {"dcert", OPT_DCERT, '<',
712 "Second certificate file to use (usually for DSA)"},
713 {"dcertform", OPT_DCERTFORM, 'F',
714 "Second certificate format (PEM or DER) PEM default"},
715 {"dkey", OPT_DKEY, '<',
716 "Second private key file to use (usually for DSA)"},
717 {"dkeyform", OPT_DKEYFORM, 'F',
718 "Second key format (PEM, DER or ENGINE) PEM default"},
719 {"dpass", OPT_DPASS, 's', "Second private key file pass phrase source"},
720 {"nbio_test", OPT_NBIO_TEST, '-', "Test with the non-blocking test bio"},
721 {"crlf", OPT_CRLF, '-', "Convert LF from terminal into CRLF"},
722 {"debug", OPT_DEBUG, '-', "Print more output"},
723 {"msg", OPT_MSG, '-', "Show protocol messages"},
724 {"msgfile", OPT_MSGFILE, '>',
725 "File to send output of -msg or -trace, instead of stdout"},
726 {"state", OPT_STATE, '-', "Print the SSL states"},
727 {"CAfile", OPT_CAFILE, '<', "PEM format file of CA's"},
728 {"CApath", OPT_CAPATH, '/', "PEM format directory of CA's"},
729 {"no-CAfile", OPT_NOCAFILE, '-',
730 "Do not load the default certificates file"},
731 {"no-CApath", OPT_NOCAPATH, '-',
732 "Do not load certificates from the default certificates directory"},
733 {"nocert", OPT_NOCERT, '-', "Don't use any certificates (Anon-DH)"},
734 {"quiet", OPT_QUIET, '-', "No server output"},
735 {"no_resume_ephemeral", OPT_NO_RESUME_EPHEMERAL, '-',
736 "Disable caching and tickets if ephemeral (EC)DH is used"},
737 {"www", OPT_WWW, '-', "Respond to a 'GET /' with a status page"},
738 {"WWW", OPT_UPPER_WWW, '-', "Respond to a 'GET with the file ./path"},
739 {"servername", OPT_SERVERNAME, 's',
740 "Servername for HostName TLS extension"},
741 {"servername_fatal", OPT_SERVERNAME_FATAL, '-',
742 "mismatch send fatal alert (default warning alert)"},
743 {"cert2", OPT_CERT2, '<',
744 "Certificate file to use for servername; default is" TEST_CERT2},
745 {"key2", OPT_KEY2, '<',
746 "-Private Key file to use for servername if not in -cert2"},
747 {"tlsextdebug", OPT_TLSEXTDEBUG, '-',
748 "Hex dump of all TLS extensions received"},
749 {"HTTP", OPT_HTTP, '-', "Like -WWW but ./path includes HTTP headers"},
750 {"id_prefix", OPT_ID_PREFIX, 's',
751 "Generate SSL/TLS session IDs prefixed by arg"},
752 {"rand", OPT_RAND, 's',
753 "Load the file(s) into the random number generator"},
754 {"keymatexport", OPT_KEYMATEXPORT, 's',
755 "Export keying material using label"},
756 {"keymatexportlen", OPT_KEYMATEXPORTLEN, 'p',
757 "Export len bytes of keying material (default 20)"},
758 {"CRL", OPT_CRL, '<', "CRL file to use"},
759 {"crl_download", OPT_CRL_DOWNLOAD, '-',
760 "Download CRL from distribution points"},
761 {"cert_chain", OPT_CERT_CHAIN, '<',
762 "certificate chain file in PEM format"},
763 {"dcert_chain", OPT_DCERT_CHAIN, '<',
764 "second certificate chain file in PEM format"},
765 {"chainCApath", OPT_CHAINCAPATH, '/',
766 "use dir as certificate store path to build CA certificate chain"},
767 {"verifyCApath", OPT_VERIFYCAPATH, '/',
768 "use dir as certificate store path to verify CA certificate"},
769 {"no_cache", OPT_NO_CACHE, '-', "Disable session cache"},
770 {"ext_cache", OPT_EXT_CACHE, '-',
771 "Disable internal cache, setup and use external cache"},
772 {"CRLform", OPT_CRLFORM, 'F', "CRL format (PEM or DER) PEM is default"},
773 {"verify_return_error", OPT_VERIFY_RET_ERROR, '-',
774 "Close connection on verification error"},
775 {"verify_quiet", OPT_VERIFY_QUIET, '-',
776 "No verify output except verify errors"},
777 {"build_chain", OPT_BUILD_CHAIN, '-', "Build certificate chain"},
778 {"chainCAfile", OPT_CHAINCAFILE, '<',
779 "CA file for certificate chain (PEM format)"},
780 {"verifyCAfile", OPT_VERIFYCAFILE, '<',
781 "CA file for certificate verification (PEM format)"},
782 {"ign_eof", OPT_IGN_EOF, '-', "ignore input eof (default when -quiet)"},
783 {"no_ign_eof", OPT_NO_IGN_EOF, '-', "Do not ignore input eof"},
784 #ifndef OPENSSL_NO_OCSP
785 {"status", OPT_STATUS, '-', "Request certificate status from server"},
786 {"status_verbose", OPT_STATUS_VERBOSE, '-',
787 "Print more output in certificate status callback"},
788 {"status_timeout", OPT_STATUS_TIMEOUT, 'n',
789 "Status request responder timeout"},
790 {"status_url", OPT_STATUS_URL, 's', "Status request fallback URL"},
791 #endif
792 #ifndef OPENSSL_NO_SSL_TRACE
793 {"trace", OPT_TRACE, '-', "trace protocol messages"},
794 #endif
795 {"security_debug", OPT_SECURITY_DEBUG, '-',
796 "Print output from SSL/TLS security framework"},
797 {"security_debug_verbose", OPT_SECURITY_DEBUG_VERBOSE, '-',
798 "Print more output from SSL/TLS security framework"},
799 {"brief", OPT_BRIEF, '-',
800 "Restrict output to brief summary of connection parameters"},
801 {"rev", OPT_REV, '-',
802 "act as a simple test server which just sends back with the received text reversed"},
803 {"async", OPT_ASYNC, '-', "Operate in asynchronous mode"},
804 {"ssl_config", OPT_SSL_CONFIG, 's',
805 "Configure SSL_CTX using the configuration 'val'"},
806 {"split_send_frag", OPT_SPLIT_SEND_FRAG, 'n',
807 "Size used to split data for encrypt pipelines"},
808 {"max_pipelines", OPT_MAX_PIPELINES, 'n',
809 "Maximum number of encrypt/decrypt pipelines to be used"},
810 {"read_buf", OPT_READ_BUF, 'n',
811 "Default read buffer size to be used for connections"},
812 OPT_S_OPTIONS,
813 OPT_V_OPTIONS,
814 OPT_X_OPTIONS,
815 {"nbio", OPT_NBIO, '-', "Use non-blocking IO"},
816 #ifndef OPENSSL_NO_PSK
817 {"psk_hint", OPT_PSK_HINT, 's', "PSK identity hint to use"},
818 {"psk", OPT_PSK, 's', "PSK in hex (without 0x)"},
819 #endif
820 #ifndef OPENSSL_NO_SRP
821 {"srpvfile", OPT_SRPVFILE, '<', "The verifier file for SRP"},
822 {"srpuserseed", OPT_SRPUSERSEED, 's',
823 "A seed string for a default user salt"},
824 #endif
825 #ifndef OPENSSL_NO_SSL3
826 {"ssl3", OPT_SSL3, '-', "Just talk SSLv3"},
827 #endif
828 #ifndef OPENSSL_NO_TLS1
829 {"tls1", OPT_TLS1, '-', "Just talk TLSv1"},
830 #endif
831 #ifndef OPENSSL_NO_TLS1_1
832 {"tls1_1", OPT_TLS1_1, '-', "Just talk TLSv1.1"},
833 #endif
834 #ifndef OPENSSL_NO_TLS1_2
835 {"tls1_2", OPT_TLS1_2, '-', "just talk TLSv1.2"},
836 #endif
837 #ifndef OPENSSL_NO_TLS1_3
838 {"tls1_3", OPT_TLS1_3, '-', "just talk TLSv1.3"},
839 #endif
840 #ifndef OPENSSL_NO_DTLS
841 {"dtls", OPT_DTLS, '-', "Use any DTLS version"},
842 {"timeout", OPT_TIMEOUT, '-', "Enable timeouts"},
843 {"mtu", OPT_MTU, 'p', "Set link layer MTU"},
844 {"listen", OPT_LISTEN, '-',
845 "Listen for a DTLS ClientHello with a cookie and then connect"},
846 #endif
847 #ifndef OPENSSL_NO_DTLS1
848 {"dtls1", OPT_DTLS1, '-', "Just talk DTLSv1"},
849 #endif
850 #ifndef OPENSSL_NO_DTLS1_2
851 {"dtls1_2", OPT_DTLS1_2, '-', "Just talk DTLSv1.2"},
852 #endif
853 #ifndef OPENSSL_NO_DH
854 {"no_dhe", OPT_NO_DHE, '-', "Disable ephemeral DH"},
855 #endif
856 #ifndef OPENSSL_NO_NEXTPROTONEG
857 {"nextprotoneg", OPT_NEXTPROTONEG, 's',
858 "Set the advertised protocols for the NPN extension (comma-separated list)"},
859 #endif
860 #ifndef OPENSSL_NO_SRTP
861 {"use_srtp", OPT_SRTP_PROFILES, 's',
862 "Offer SRTP key management with a colon-separated profile list"},
863 #endif
864 {"alpn", OPT_ALPN, 's',
865 "Set the advertised protocols for the ALPN extension (comma-separated list)"},
866 #ifndef OPENSSL_NO_ENGINE
867 {"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"},
868 #endif
869 {NULL, OPT_EOF, 0, NULL}
870 };
871
872 #define IS_PROT_FLAG(o) \
873 (o == OPT_SSL3 || o == OPT_TLS1 || o == OPT_TLS1_1 || o == OPT_TLS1_2 \
874 || o == OPT_TLS1_3 || o == OPT_DTLS || o == OPT_DTLS1 || o == OPT_DTLS1_2)
875
876 int s_server_main(int argc, char *argv[])
877 {
878 ENGINE *engine = NULL;
879 EVP_PKEY *s_key = NULL, *s_dkey = NULL;
880 SSL_CONF_CTX *cctx = NULL;
881 const SSL_METHOD *meth = TLS_server_method();
882 SSL_EXCERT *exc = NULL;
883 STACK_OF(OPENSSL_STRING) *ssl_args = NULL;
884 STACK_OF(X509) *s_chain = NULL, *s_dchain = NULL;
885 STACK_OF(X509_CRL) *crls = NULL;
886 X509 *s_cert = NULL, *s_dcert = NULL;
887 X509_VERIFY_PARAM *vpm = NULL;
888 const char *CApath = NULL, *CAfile = NULL, *chCApath = NULL, *chCAfile = NULL;
889 char *dpassarg = NULL, *dpass = NULL, *inrand = NULL;
890 char *passarg = NULL, *pass = NULL, *vfyCApath = NULL, *vfyCAfile = NULL;
891 char *crl_file = NULL, *prog;
892 #ifdef AF_UNIX
893 int unlink_unix_path = 0;
894 #endif
895 do_server_cb server_cb;
896 int vpmtouched = 0, build_chain = 0, no_cache = 0, ext_cache = 0;
897 #ifndef OPENSSL_NO_DH
898 char *dhfile = NULL;
899 int no_dhe = 0;
900 #endif
901 int nocert = 0, ret = 1;
902 int noCApath = 0, noCAfile = 0;
903 int s_cert_format = FORMAT_PEM, s_key_format = FORMAT_PEM;
904 int s_dcert_format = FORMAT_PEM, s_dkey_format = FORMAT_PEM;
905 int rev = 0, naccept = -1, sdebug = 0;
906 int socket_family = AF_UNSPEC, socket_type = SOCK_STREAM;
907 int state = 0, crl_format = FORMAT_PEM, crl_download = 0;
908 char *host = NULL;
909 char *port = BUF_strdup(PORT);
910 unsigned char *context = NULL;
911 OPTION_CHOICE o;
912 EVP_PKEY *s_key2 = NULL;
913 X509 *s_cert2 = NULL;
914 tlsextctx tlsextcbp = { NULL, NULL, SSL_TLSEXT_ERR_ALERT_WARNING };
915 const char *ssl_config = NULL;
916 int read_buf_len = 0;
917 #ifndef OPENSSL_NO_NEXTPROTONEG
918 const char *next_proto_neg_in = NULL;
919 tlsextnextprotoctx next_proto = { NULL, 0 };
920 #endif
921 const char *alpn_in = NULL;
922 tlsextalpnctx alpn_ctx = { NULL, 0 };
923 #ifndef OPENSSL_NO_PSK
924 /* by default do not send a PSK identity hint */
925 static char *psk_identity_hint = NULL;
926 char *p;
927 #endif
928 #ifndef OPENSSL_NO_SRP
929 char *srpuserseed = NULL;
930 char *srp_verifier_file = NULL;
931 #endif
932 int min_version = 0, max_version = 0, prot_opt = 0, no_prot_opt = 0;
933 int s_server_verify = SSL_VERIFY_NONE;
934 int s_server_session_id_context = 1; /* anything will do */
935 const char *s_cert_file = TEST_CERT, *s_key_file = NULL, *s_chain_file = NULL;
936 const char *s_cert_file2 = TEST_CERT2, *s_key_file2 = NULL;
937 char *s_dcert_file = NULL, *s_dkey_file = NULL, *s_dchain_file = NULL;
938 #ifndef OPENSSL_NO_OCSP
939 int s_tlsextstatus = 0;
940 #endif
941 int no_resume_ephemeral = 0;
942 unsigned int split_send_fragment = 0, max_pipelines = 0;
943 const char *s_serverinfo_file = NULL;
944
945 /* Init of few remaining global variables */
946 local_argc = argc;
947 local_argv = argv;
948
949 ctx = ctx2 = NULL;
950 s_nbio = s_nbio_test = 0;
951 www = 0;
952 bio_s_out = NULL;
953 s_debug = 0;
954 s_msg = 0;
955 s_quiet = 0;
956 s_brief = 0;
957 async = 0;
958
959 cctx = SSL_CONF_CTX_new();
960 vpm = X509_VERIFY_PARAM_new();
961 if (cctx == NULL || vpm == NULL)
962 goto end;
963 SSL_CONF_CTX_set_flags(cctx,
964 SSL_CONF_FLAG_SERVER | SSL_CONF_FLAG_CMDLINE);
965
966 prog = opt_init(argc, argv, s_server_options);
967 while ((o = opt_next()) != OPT_EOF) {
968 if (IS_PROT_FLAG(o) && ++prot_opt > 1) {
969 BIO_printf(bio_err, "Cannot supply multiple protocol flags\n");
970 goto end;
971 }
972 if (IS_NO_PROT_FLAG(o))
973 no_prot_opt++;
974 if (prot_opt == 1 && no_prot_opt) {
975 BIO_printf(bio_err,
976 "Cannot supply both a protocol flag and '-no_<prot>'\n");
977 goto end;
978 }
979 switch (o) {
980 case OPT_EOF:
981 case OPT_ERR:
982 opthelp:
983 BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
984 goto end;
985 case OPT_HELP:
986 opt_help(s_server_options);
987 ret = 0;
988 goto end;
989
990 case OPT_4:
991 #ifdef AF_UNIX
992 if (socket_family == AF_UNIX) {
993 OPENSSL_free(host); host = NULL;
994 OPENSSL_free(port); port = NULL;
995 }
996 #endif
997 socket_family = AF_INET;
998 break;
999 case OPT_6:
1000 if (1) {
1001 #ifdef AF_INET6
1002 #ifdef AF_UNIX
1003 if (socket_family == AF_UNIX) {
1004 OPENSSL_free(host); host = NULL;
1005 OPENSSL_free(port); port = NULL;
1006 }
1007 #endif
1008 socket_family = AF_INET6;
1009 } else {
1010 #endif
1011 BIO_printf(bio_err, "%s: IPv6 domain sockets unsupported\n", prog);
1012 goto end;
1013 }
1014 break;
1015 case OPT_PORT:
1016 #ifdef AF_UNIX
1017 if (socket_family == AF_UNIX) {
1018 socket_family = AF_UNSPEC;
1019 }
1020 #endif
1021 OPENSSL_free(port); port = NULL;
1022 OPENSSL_free(host); host = NULL;
1023 if (BIO_parse_hostserv(opt_arg(), NULL, &port, BIO_PARSE_PRIO_SERV) < 1) {
1024 BIO_printf(bio_err,
1025 "%s: -port argument malformed or ambiguous\n",
1026 port);
1027 goto end;
1028 }
1029 break;
1030 case OPT_ACCEPT:
1031 #ifdef AF_UNIX
1032 if (socket_family == AF_UNIX) {
1033 socket_family = AF_UNSPEC;
1034 }
1035 #endif
1036 OPENSSL_free(port); port = NULL;
1037 OPENSSL_free(host); host = NULL;
1038 if (BIO_parse_hostserv(opt_arg(), &host, &port, BIO_PARSE_PRIO_SERV) < 1) {
1039 BIO_printf(bio_err,
1040 "%s: -accept argument malformed or ambiguous\n",
1041 port);
1042 goto end;
1043 }
1044 break;
1045 #ifdef AF_UNIX
1046 case OPT_UNIX:
1047 socket_family = AF_UNIX;
1048 OPENSSL_free(host); host = BUF_strdup(opt_arg());
1049 OPENSSL_free(port); port = NULL;
1050 break;
1051 case OPT_UNLINK:
1052 unlink_unix_path = 1;
1053 break;
1054 #endif
1055 case OPT_NACCEPT:
1056 naccept = atol(opt_arg());
1057 break;
1058 case OPT_VERIFY:
1059 s_server_verify = SSL_VERIFY_PEER | SSL_VERIFY_CLIENT_ONCE;
1060 verify_args.depth = atoi(opt_arg());
1061 if (!s_quiet)
1062 BIO_printf(bio_err, "verify depth is %d\n", verify_args.depth);
1063 break;
1064 case OPT_UPPER_V_VERIFY:
1065 s_server_verify =
1066 SSL_VERIFY_PEER | SSL_VERIFY_FAIL_IF_NO_PEER_CERT |
1067 SSL_VERIFY_CLIENT_ONCE;
1068 verify_args.depth = atoi(opt_arg());
1069 if (!s_quiet)
1070 BIO_printf(bio_err,
1071 "verify depth is %d, must return a certificate\n",
1072 verify_args.depth);
1073 break;
1074 case OPT_CONTEXT:
1075 context = (unsigned char *)opt_arg();
1076 break;
1077 case OPT_CERT:
1078 s_cert_file = opt_arg();
1079 break;
1080 case OPT_CRL:
1081 crl_file = opt_arg();
1082 break;
1083 case OPT_CRL_DOWNLOAD:
1084 crl_download = 1;
1085 break;
1086 case OPT_SERVERINFO:
1087 s_serverinfo_file = opt_arg();
1088 break;
1089 case OPT_CERTFORM:
1090 if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &s_cert_format))
1091 goto opthelp;
1092 break;
1093 case OPT_KEY:
1094 s_key_file = opt_arg();
1095 break;
1096 case OPT_KEYFORM:
1097 if (!opt_format(opt_arg(), OPT_FMT_ANY, &s_key_format))
1098 goto opthelp;
1099 break;
1100 case OPT_PASS:
1101 passarg = opt_arg();
1102 break;
1103 case OPT_CERT_CHAIN:
1104 s_chain_file = opt_arg();
1105 break;
1106 case OPT_DHPARAM:
1107 #ifndef OPENSSL_NO_DH
1108 dhfile = opt_arg();
1109 #endif
1110 break;
1111 case OPT_DCERTFORM:
1112 if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &s_dcert_format))
1113 goto opthelp;
1114 break;
1115 case OPT_DCERT:
1116 s_dcert_file = opt_arg();
1117 break;
1118 case OPT_DKEYFORM:
1119 if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &s_dkey_format))
1120 goto opthelp;
1121 break;
1122 case OPT_DPASS:
1123 dpassarg = opt_arg();
1124 break;
1125 case OPT_DKEY:
1126 s_dkey_file = opt_arg();
1127 break;
1128 case OPT_DCERT_CHAIN:
1129 s_dchain_file = opt_arg();
1130 break;
1131 case OPT_NOCERT:
1132 nocert = 1;
1133 break;
1134 case OPT_CAPATH:
1135 CApath = opt_arg();
1136 break;
1137 case OPT_NOCAPATH:
1138 noCApath = 1;
1139 break;
1140 case OPT_CHAINCAPATH:
1141 chCApath = opt_arg();
1142 break;
1143 case OPT_VERIFYCAPATH:
1144 vfyCApath = opt_arg();
1145 break;
1146 case OPT_NO_CACHE:
1147 no_cache = 1;
1148 break;
1149 case OPT_EXT_CACHE:
1150 ext_cache = 1;
1151 break;
1152 case OPT_CRLFORM:
1153 if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &crl_format))
1154 goto opthelp;
1155 break;
1156 case OPT_S_CASES:
1157 if (ssl_args == NULL)
1158 ssl_args = sk_OPENSSL_STRING_new_null();
1159 if (ssl_args == NULL
1160 || !sk_OPENSSL_STRING_push(ssl_args, opt_flag())
1161 || !sk_OPENSSL_STRING_push(ssl_args, opt_arg())) {
1162 BIO_printf(bio_err, "%s: Memory allocation failure\n", prog);
1163 goto end;
1164 }
1165 break;
1166 case OPT_V_CASES:
1167 if (!opt_verify(o, vpm))
1168 goto end;
1169 vpmtouched++;
1170 break;
1171 case OPT_X_CASES:
1172 if (!args_excert(o, &exc))
1173 goto end;
1174 break;
1175 case OPT_VERIFY_RET_ERROR:
1176 verify_args.return_error = 1;
1177 break;
1178 case OPT_VERIFY_QUIET:
1179 verify_args.quiet = 1;
1180 break;
1181 case OPT_BUILD_CHAIN:
1182 build_chain = 1;
1183 break;
1184 case OPT_CAFILE:
1185 CAfile = opt_arg();
1186 break;
1187 case OPT_NOCAFILE:
1188 noCAfile = 1;
1189 break;
1190 case OPT_CHAINCAFILE:
1191 chCAfile = opt_arg();
1192 break;
1193 case OPT_VERIFYCAFILE:
1194 vfyCAfile = opt_arg();
1195 break;
1196 case OPT_NBIO:
1197 s_nbio = 1;
1198 break;
1199 case OPT_NBIO_TEST:
1200 s_nbio = s_nbio_test = 1;
1201 break;
1202 case OPT_IGN_EOF:
1203 s_ign_eof = 1;
1204 break;
1205 case OPT_NO_IGN_EOF:
1206 s_ign_eof = 0;
1207 break;
1208 case OPT_DEBUG:
1209 s_debug = 1;
1210 break;
1211 case OPT_TLSEXTDEBUG:
1212 s_tlsextdebug = 1;
1213 break;
1214 case OPT_STATUS:
1215 #ifndef OPENSSL_NO_OCSP
1216 s_tlsextstatus = 1;
1217 #endif
1218 break;
1219 case OPT_STATUS_VERBOSE:
1220 #ifndef OPENSSL_NO_OCSP
1221 s_tlsextstatus = tlscstatp.verbose = 1;
1222 #endif
1223 break;
1224 case OPT_STATUS_TIMEOUT:
1225 #ifndef OPENSSL_NO_OCSP
1226 s_tlsextstatus = 1;
1227 tlscstatp.timeout = atoi(opt_arg());
1228 #endif
1229 break;
1230 case OPT_STATUS_URL:
1231 #ifndef OPENSSL_NO_OCSP
1232 s_tlsextstatus = 1;
1233 if (!OCSP_parse_url(opt_arg(),
1234 &tlscstatp.host,
1235 &tlscstatp.port,
1236 &tlscstatp.path, &tlscstatp.use_ssl)) {
1237 BIO_printf(bio_err, "Error parsing URL\n");
1238 goto end;
1239 }
1240 #endif
1241 break;
1242 case OPT_MSG:
1243 s_msg = 1;
1244 break;
1245 case OPT_MSGFILE:
1246 bio_s_msg = BIO_new_file(opt_arg(), "w");
1247 break;
1248 case OPT_TRACE:
1249 #ifndef OPENSSL_NO_SSL_TRACE
1250 s_msg = 2;
1251 #endif
1252 break;
1253 case OPT_SECURITY_DEBUG:
1254 sdebug = 1;
1255 break;
1256 case OPT_SECURITY_DEBUG_VERBOSE:
1257 sdebug = 2;
1258 break;
1259 case OPT_STATE:
1260 state = 1;
1261 break;
1262 case OPT_CRLF:
1263 s_crlf = 1;
1264 break;
1265 case OPT_QUIET:
1266 s_quiet = 1;
1267 break;
1268 case OPT_BRIEF:
1269 s_quiet = s_brief = verify_args.quiet = 1;
1270 break;
1271 case OPT_NO_DHE:
1272 #ifndef OPENSSL_NO_DH
1273 no_dhe = 1;
1274 #endif
1275 break;
1276 case OPT_NO_RESUME_EPHEMERAL:
1277 no_resume_ephemeral = 1;
1278 break;
1279 case OPT_PSK_HINT:
1280 #ifndef OPENSSL_NO_PSK
1281 psk_identity_hint = opt_arg();
1282 #endif
1283 break;
1284 case OPT_PSK:
1285 #ifndef OPENSSL_NO_PSK
1286 for (p = psk_key = opt_arg(); *p; p++) {
1287 if (isxdigit(_UC(*p)))
1288 continue;
1289 BIO_printf(bio_err, "Not a hex number '%s'\n", *argv);
1290 goto end;
1291 }
1292 #endif
1293 break;
1294 case OPT_SRPVFILE:
1295 #ifndef OPENSSL_NO_SRP
1296 srp_verifier_file = opt_arg();
1297 if (min_version < TLS1_VERSION)
1298 min_version = TLS1_VERSION;
1299 #endif
1300 break;
1301 case OPT_SRPUSERSEED:
1302 #ifndef OPENSSL_NO_SRP
1303 srpuserseed = opt_arg();
1304 if (min_version < TLS1_VERSION)
1305 min_version = TLS1_VERSION;
1306 #endif
1307 break;
1308 case OPT_REV:
1309 rev = 1;
1310 break;
1311 case OPT_WWW:
1312 www = 1;
1313 break;
1314 case OPT_UPPER_WWW:
1315 www = 2;
1316 break;
1317 case OPT_HTTP:
1318 www = 3;
1319 break;
1320 case OPT_SSL_CONFIG:
1321 ssl_config = opt_arg();
1322 break;
1323 case OPT_SSL3:
1324 min_version = SSL3_VERSION;
1325 max_version = SSL3_VERSION;
1326 break;
1327 case OPT_TLS1_3:
1328 min_version = TLS1_3_VERSION;
1329 max_version = TLS1_3_VERSION;
1330 break;
1331 case OPT_TLS1_2:
1332 min_version = TLS1_2_VERSION;
1333 max_version = TLS1_2_VERSION;
1334 break;
1335 case OPT_TLS1_1:
1336 min_version = TLS1_1_VERSION;
1337 max_version = TLS1_1_VERSION;
1338 break;
1339 case OPT_TLS1:
1340 min_version = TLS1_VERSION;
1341 max_version = TLS1_VERSION;
1342 break;
1343 case OPT_DTLS:
1344 #ifndef OPENSSL_NO_DTLS
1345 meth = DTLS_server_method();
1346 socket_type = SOCK_DGRAM;
1347 #endif
1348 break;
1349 case OPT_DTLS1:
1350 #ifndef OPENSSL_NO_DTLS
1351 meth = DTLS_server_method();
1352 min_version = DTLS1_VERSION;
1353 max_version = DTLS1_VERSION;
1354 socket_type = SOCK_DGRAM;
1355 #endif
1356 break;
1357 case OPT_DTLS1_2:
1358 #ifndef OPENSSL_NO_DTLS
1359 meth = DTLS_server_method();
1360 min_version = DTLS1_2_VERSION;
1361 max_version = DTLS1_2_VERSION;
1362 socket_type = SOCK_DGRAM;
1363 #endif
1364 break;
1365 case OPT_TIMEOUT:
1366 #ifndef OPENSSL_NO_DTLS
1367 enable_timeouts = 1;
1368 #endif
1369 break;
1370 case OPT_MTU:
1371 #ifndef OPENSSL_NO_DTLS
1372 socket_mtu = atol(opt_arg());
1373 #endif
1374 break;
1375 case OPT_LISTEN:
1376 #ifndef OPENSSL_NO_DTLS
1377 dtlslisten = 1;
1378 #endif
1379 break;
1380 case OPT_ID_PREFIX:
1381 session_id_prefix = opt_arg();
1382 break;
1383 case OPT_ENGINE:
1384 engine = setup_engine(opt_arg(), 1);
1385 break;
1386 case OPT_RAND:
1387 inrand = opt_arg();
1388 break;
1389 case OPT_SERVERNAME:
1390 tlsextcbp.servername = opt_arg();
1391 break;
1392 case OPT_SERVERNAME_FATAL:
1393 tlsextcbp.extension_error = SSL_TLSEXT_ERR_ALERT_FATAL;
1394 break;
1395 case OPT_CERT2:
1396 s_cert_file2 = opt_arg();
1397 break;
1398 case OPT_KEY2:
1399 s_key_file2 = opt_arg();
1400 break;
1401 case OPT_NEXTPROTONEG:
1402 # ifndef OPENSSL_NO_NEXTPROTONEG
1403 next_proto_neg_in = opt_arg();
1404 #endif
1405 break;
1406 case OPT_ALPN:
1407 alpn_in = opt_arg();
1408 break;
1409 case OPT_SRTP_PROFILES:
1410 #ifndef OPENSSL_NO_SRTP
1411 srtp_profiles = opt_arg();
1412 #endif
1413 break;
1414 case OPT_KEYMATEXPORT:
1415 keymatexportlabel = opt_arg();
1416 break;
1417 case OPT_KEYMATEXPORTLEN:
1418 keymatexportlen = atoi(opt_arg());
1419 break;
1420 case OPT_ASYNC:
1421 async = 1;
1422 break;
1423 case OPT_SPLIT_SEND_FRAG:
1424 split_send_fragment = atoi(opt_arg());
1425 if (split_send_fragment == 0) {
1426 /*
1427 * Not allowed - set to a deliberately bad value so we get an
1428 * error message below
1429 */
1430 split_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH + 1;
1431 }
1432 break;
1433 case OPT_MAX_PIPELINES:
1434 max_pipelines = atoi(opt_arg());
1435 break;
1436 case OPT_READ_BUF:
1437 read_buf_len = atoi(opt_arg());
1438 break;
1439
1440 }
1441 }
1442 argc = opt_num_rest();
1443 argv = opt_rest();
1444
1445 #ifndef OPENSSL_NO_DTLS
1446 if (www && socket_type == SOCK_DGRAM) {
1447 BIO_printf(bio_err, "Can't use -HTTP, -www or -WWW with DTLS\n");
1448 goto end;
1449 }
1450
1451 if (dtlslisten && socket_type != SOCK_DGRAM) {
1452 BIO_printf(bio_err, "Can only use -listen with DTLS\n");
1453 goto end;
1454 }
1455 #endif
1456
1457 #ifdef AF_UNIX
1458 if (socket_family == AF_UNIX && socket_type != SOCK_STREAM) {
1459 BIO_printf(bio_err,
1460 "Can't use unix sockets and datagrams together\n");
1461 goto end;
1462 }
1463 #endif
1464
1465 if (split_send_fragment > SSL3_RT_MAX_PLAIN_LENGTH) {
1466 BIO_printf(bio_err, "Bad split send fragment size\n");
1467 goto end;
1468 }
1469
1470 if (max_pipelines > SSL_MAX_PIPELINES) {
1471 BIO_printf(bio_err, "Bad max pipelines value\n");
1472 goto end;
1473 }
1474
1475 if (!app_passwd(passarg, dpassarg, &pass, &dpass)) {
1476 BIO_printf(bio_err, "Error getting password\n");
1477 goto end;
1478 }
1479
1480 if (s_key_file == NULL)
1481 s_key_file = s_cert_file;
1482
1483 if (s_key_file2 == NULL)
1484 s_key_file2 = s_cert_file2;
1485
1486 if (!load_excert(&exc))
1487 goto end;
1488
1489 if (nocert == 0) {
1490 s_key = load_key(s_key_file, s_key_format, 0, pass, engine,
1491 "server certificate private key file");
1492 if (!s_key) {
1493 ERR_print_errors(bio_err);
1494 goto end;
1495 }
1496
1497 s_cert = load_cert(s_cert_file, s_cert_format,
1498 "server certificate file");
1499
1500 if (!s_cert) {
1501 ERR_print_errors(bio_err);
1502 goto end;
1503 }
1504 if (s_chain_file) {
1505 if (!load_certs(s_chain_file, &s_chain, FORMAT_PEM, NULL,
1506 "server certificate chain"))
1507 goto end;
1508 }
1509
1510 if (tlsextcbp.servername) {
1511 s_key2 = load_key(s_key_file2, s_key_format, 0, pass, engine,
1512 "second server certificate private key file");
1513 if (!s_key2) {
1514 ERR_print_errors(bio_err);
1515 goto end;
1516 }
1517
1518 s_cert2 = load_cert(s_cert_file2, s_cert_format,
1519 "second server certificate file");
1520
1521 if (!s_cert2) {
1522 ERR_print_errors(bio_err);
1523 goto end;
1524 }
1525 }
1526 }
1527 #if !defined(OPENSSL_NO_NEXTPROTONEG)
1528 if (next_proto_neg_in) {
1529 size_t len;
1530 next_proto.data = next_protos_parse(&len, next_proto_neg_in);
1531 if (next_proto.data == NULL)
1532 goto end;
1533 next_proto.len = len;
1534 } else {
1535 next_proto.data = NULL;
1536 }
1537 #endif
1538 alpn_ctx.data = NULL;
1539 if (alpn_in) {
1540 size_t len;
1541 alpn_ctx.data = next_protos_parse(&len, alpn_in);
1542 if (alpn_ctx.data == NULL)
1543 goto end;
1544 alpn_ctx.len = len;
1545 }
1546
1547 if (crl_file) {
1548 X509_CRL *crl;
1549 crl = load_crl(crl_file, crl_format);
1550 if (!crl) {
1551 BIO_puts(bio_err, "Error loading CRL\n");
1552 ERR_print_errors(bio_err);
1553 goto end;
1554 }
1555 crls = sk_X509_CRL_new_null();
1556 if (!crls || !sk_X509_CRL_push(crls, crl)) {
1557 BIO_puts(bio_err, "Error adding CRL\n");
1558 ERR_print_errors(bio_err);
1559 X509_CRL_free(crl);
1560 goto end;
1561 }
1562 }
1563
1564 if (s_dcert_file) {
1565
1566 if (s_dkey_file == NULL)
1567 s_dkey_file = s_dcert_file;
1568
1569 s_dkey = load_key(s_dkey_file, s_dkey_format,
1570 0, dpass, engine, "second certificate private key file");
1571 if (!s_dkey) {
1572 ERR_print_errors(bio_err);
1573 goto end;
1574 }
1575
1576 s_dcert = load_cert(s_dcert_file, s_dcert_format,
1577 "second server certificate file");
1578
1579 if (!s_dcert) {
1580 ERR_print_errors(bio_err);
1581 goto end;
1582 }
1583 if (s_dchain_file) {
1584 if (!load_certs(s_dchain_file, &s_dchain, FORMAT_PEM, NULL,
1585 "second server certificate chain"))
1586 goto end;
1587 }
1588
1589 }
1590
1591 if (!app_RAND_load_file(NULL, 1) && inrand == NULL
1592 && !RAND_status()) {
1593 BIO_printf(bio_err,
1594 "warning, not much extra random data, consider using the -rand option\n");
1595 }
1596 if (inrand != NULL)
1597 BIO_printf(bio_err, "%ld semi-random bytes loaded\n",
1598 app_RAND_load_files(inrand));
1599
1600 if (bio_s_out == NULL) {
1601 if (s_quiet && !s_debug) {
1602 bio_s_out = BIO_new(BIO_s_null());
1603 if (s_msg && !bio_s_msg)
1604 bio_s_msg = dup_bio_out(FORMAT_TEXT);
1605 } else {
1606 if (bio_s_out == NULL)
1607 bio_s_out = dup_bio_out(FORMAT_TEXT);
1608 }
1609 }
1610 #if !defined(OPENSSL_NO_RSA) || !defined(OPENSSL_NO_DSA) || !defined(OPENSSL_NO_EC)
1611 if (nocert)
1612 #endif
1613 {
1614 s_cert_file = NULL;
1615 s_key_file = NULL;
1616 s_dcert_file = NULL;
1617 s_dkey_file = NULL;
1618 s_cert_file2 = NULL;
1619 s_key_file2 = NULL;
1620 }
1621
1622 ctx = SSL_CTX_new(meth);
1623 if (ctx == NULL) {
1624 ERR_print_errors(bio_err);
1625 goto end;
1626 }
1627 if (sdebug)
1628 ssl_ctx_security_debug(ctx, sdebug);
1629 if (ssl_config) {
1630 if (SSL_CTX_config(ctx, ssl_config) == 0) {
1631 BIO_printf(bio_err, "Error using configuration \"%s\"\n",
1632 ssl_config);
1633 ERR_print_errors(bio_err);
1634 goto end;
1635 }
1636 }
1637 if (SSL_CTX_set_min_proto_version(ctx, min_version) == 0)
1638 goto end;
1639 if (SSL_CTX_set_max_proto_version(ctx, max_version) == 0)
1640 goto end;
1641
1642 if (session_id_prefix) {
1643 if (strlen(session_id_prefix) >= 32)
1644 BIO_printf(bio_err,
1645 "warning: id_prefix is too long, only one new session will be possible\n");
1646 if (!SSL_CTX_set_generate_session_id(ctx, generate_session_id)) {
1647 BIO_printf(bio_err, "error setting 'id_prefix'\n");
1648 ERR_print_errors(bio_err);
1649 goto end;
1650 }
1651 BIO_printf(bio_err, "id_prefix '%s' set.\n", session_id_prefix);
1652 }
1653 SSL_CTX_set_quiet_shutdown(ctx, 1);
1654 if (exc)
1655 ssl_ctx_set_excert(ctx, exc);
1656
1657 if (state)
1658 SSL_CTX_set_info_callback(ctx, apps_ssl_info_callback);
1659 if (no_cache)
1660 SSL_CTX_set_session_cache_mode(ctx, SSL_SESS_CACHE_OFF);
1661 else if (ext_cache)
1662 init_session_cache_ctx(ctx);
1663 else
1664 SSL_CTX_sess_set_cache_size(ctx, 128);
1665
1666 if (async) {
1667 SSL_CTX_set_mode(ctx, SSL_MODE_ASYNC);
1668 }
1669 if (split_send_fragment > 0) {
1670 SSL_CTX_set_split_send_fragment(ctx, split_send_fragment);
1671 }
1672 if (max_pipelines > 0) {
1673 SSL_CTX_set_max_pipelines(ctx, max_pipelines);
1674 }
1675
1676 if (read_buf_len > 0) {
1677 SSL_CTX_set_default_read_buffer_len(ctx, read_buf_len);
1678 }
1679 #ifndef OPENSSL_NO_SRTP
1680 if (srtp_profiles != NULL) {
1681 /* Returns 0 on success! */
1682 if (SSL_CTX_set_tlsext_use_srtp(ctx, srtp_profiles) != 0) {
1683 BIO_printf(bio_err, "Error setting SRTP profile\n");
1684 ERR_print_errors(bio_err);
1685 goto end;
1686 }
1687 }
1688 #endif
1689
1690 if (!ctx_set_verify_locations(ctx, CAfile, CApath, noCAfile, noCApath)) {
1691 ERR_print_errors(bio_err);
1692 goto end;
1693 }
1694 if (vpmtouched && !SSL_CTX_set1_param(ctx, vpm)) {
1695 BIO_printf(bio_err, "Error setting verify params\n");
1696 ERR_print_errors(bio_err);
1697 goto end;
1698 }
1699
1700 ssl_ctx_add_crls(ctx, crls, 0);
1701 if (!config_ctx(cctx, ssl_args, ctx))
1702 goto end;
1703
1704 if (!ssl_load_stores(ctx, vfyCApath, vfyCAfile, chCApath, chCAfile,
1705 crls, crl_download)) {
1706 BIO_printf(bio_err, "Error loading store locations\n");
1707 ERR_print_errors(bio_err);
1708 goto end;
1709 }
1710
1711 if (s_cert2) {
1712 ctx2 = SSL_CTX_new(meth);
1713 if (ctx2 == NULL) {
1714 ERR_print_errors(bio_err);
1715 goto end;
1716 }
1717 }
1718
1719 if (ctx2) {
1720 BIO_printf(bio_s_out, "Setting secondary ctx parameters\n");
1721
1722 if (sdebug)
1723 ssl_ctx_security_debug(ctx, sdebug);
1724
1725 if (session_id_prefix) {
1726 if (strlen(session_id_prefix) >= 32)
1727 BIO_printf(bio_err,
1728 "warning: id_prefix is too long, only one new session will be possible\n");
1729 if (!SSL_CTX_set_generate_session_id(ctx2, generate_session_id)) {
1730 BIO_printf(bio_err, "error setting 'id_prefix'\n");
1731 ERR_print_errors(bio_err);
1732 goto end;
1733 }
1734 BIO_printf(bio_err, "id_prefix '%s' set.\n", session_id_prefix);
1735 }
1736 SSL_CTX_set_quiet_shutdown(ctx2, 1);
1737 if (exc)
1738 ssl_ctx_set_excert(ctx2, exc);
1739
1740 if (state)
1741 SSL_CTX_set_info_callback(ctx2, apps_ssl_info_callback);
1742
1743 if (no_cache)
1744 SSL_CTX_set_session_cache_mode(ctx2, SSL_SESS_CACHE_OFF);
1745 else if (ext_cache)
1746 init_session_cache_ctx(ctx2);
1747 else
1748 SSL_CTX_sess_set_cache_size(ctx2, 128);
1749
1750 if (async)
1751 SSL_CTX_set_mode(ctx2, SSL_MODE_ASYNC);
1752
1753 if (!ctx_set_verify_locations(ctx2, CAfile, CApath, noCAfile,
1754 noCApath)) {
1755 ERR_print_errors(bio_err);
1756 goto end;
1757 }
1758 if (vpmtouched && !SSL_CTX_set1_param(ctx2, vpm)) {
1759 BIO_printf(bio_err, "Error setting verify params\n");
1760 ERR_print_errors(bio_err);
1761 goto end;
1762 }
1763
1764 ssl_ctx_add_crls(ctx2, crls, 0);
1765 if (!config_ctx(cctx, ssl_args, ctx2))
1766 goto end;
1767 }
1768 #ifndef OPENSSL_NO_NEXTPROTONEG
1769 if (next_proto.data)
1770 SSL_CTX_set_next_protos_advertised_cb(ctx, next_proto_cb,
1771 &next_proto);
1772 #endif
1773 if (alpn_ctx.data)
1774 SSL_CTX_set_alpn_select_cb(ctx, alpn_cb, &alpn_ctx);
1775
1776 #ifndef OPENSSL_NO_DH
1777 if (!no_dhe) {
1778 DH *dh = NULL;
1779
1780 if (dhfile)
1781 dh = load_dh_param(dhfile);
1782 else if (s_cert_file)
1783 dh = load_dh_param(s_cert_file);
1784
1785 if (dh != NULL) {
1786 BIO_printf(bio_s_out, "Setting temp DH parameters\n");
1787 } else {
1788 BIO_printf(bio_s_out, "Using default temp DH parameters\n");
1789 }
1790 (void)BIO_flush(bio_s_out);
1791
1792 if (dh == NULL)
1793 SSL_CTX_set_dh_auto(ctx, 1);
1794 else if (!SSL_CTX_set_tmp_dh(ctx, dh)) {
1795 BIO_puts(bio_err, "Error setting temp DH parameters\n");
1796 ERR_print_errors(bio_err);
1797 DH_free(dh);
1798 goto end;
1799 }
1800
1801 if (ctx2) {
1802 if (!dhfile) {
1803 DH *dh2 = load_dh_param(s_cert_file2);
1804 if (dh2 != NULL) {
1805 BIO_printf(bio_s_out, "Setting temp DH parameters\n");
1806 (void)BIO_flush(bio_s_out);
1807
1808 DH_free(dh);
1809 dh = dh2;
1810 }
1811 }
1812 if (dh == NULL)
1813 SSL_CTX_set_dh_auto(ctx2, 1);
1814 else if (!SSL_CTX_set_tmp_dh(ctx2, dh)) {
1815 BIO_puts(bio_err, "Error setting temp DH parameters\n");
1816 ERR_print_errors(bio_err);
1817 DH_free(dh);
1818 goto end;
1819 }
1820 }
1821 DH_free(dh);
1822 }
1823 #endif
1824
1825 if (!set_cert_key_stuff(ctx, s_cert, s_key, s_chain, build_chain))
1826 goto end;
1827
1828 if (s_serverinfo_file != NULL
1829 && !SSL_CTX_use_serverinfo_file(ctx, s_serverinfo_file)) {
1830 ERR_print_errors(bio_err);
1831 goto end;
1832 }
1833
1834 if (ctx2 && !set_cert_key_stuff(ctx2, s_cert2, s_key2, NULL, build_chain))
1835 goto end;
1836
1837 if (s_dcert != NULL) {
1838 if (!set_cert_key_stuff(ctx, s_dcert, s_dkey, s_dchain, build_chain))
1839 goto end;
1840 }
1841
1842 if (no_resume_ephemeral) {
1843 SSL_CTX_set_not_resumable_session_callback(ctx,
1844 not_resumable_sess_cb);
1845
1846 if (ctx2)
1847 SSL_CTX_set_not_resumable_session_callback(ctx2,
1848 not_resumable_sess_cb);
1849 }
1850 #ifndef OPENSSL_NO_PSK
1851 if (psk_key != NULL) {
1852 if (s_debug)
1853 BIO_printf(bio_s_out, "PSK key given, setting server callback\n");
1854 SSL_CTX_set_psk_server_callback(ctx, psk_server_cb);
1855 }
1856
1857 if (!SSL_CTX_use_psk_identity_hint(ctx, psk_identity_hint)) {
1858 BIO_printf(bio_err, "error setting PSK identity hint to context\n");
1859 ERR_print_errors(bio_err);
1860 goto end;
1861 }
1862 #endif
1863
1864 SSL_CTX_set_verify(ctx, s_server_verify, verify_callback);
1865 if (!SSL_CTX_set_session_id_context(ctx,
1866 (void *)&s_server_session_id_context,
1867 sizeof s_server_session_id_context)) {
1868 BIO_printf(bio_err, "error setting session id context\n");
1869 ERR_print_errors(bio_err);
1870 goto end;
1871 }
1872
1873 /* Set DTLS cookie generation and verification callbacks */
1874 SSL_CTX_set_cookie_generate_cb(ctx, generate_cookie_callback);
1875 SSL_CTX_set_cookie_verify_cb(ctx, verify_cookie_callback);
1876
1877 if (ctx2) {
1878 SSL_CTX_set_verify(ctx2, s_server_verify, verify_callback);
1879 if (!SSL_CTX_set_session_id_context(ctx2,
1880 (void *)&s_server_session_id_context,
1881 sizeof s_server_session_id_context)) {
1882 BIO_printf(bio_err, "error setting session id context\n");
1883 ERR_print_errors(bio_err);
1884 goto end;
1885 }
1886 tlsextcbp.biodebug = bio_s_out;
1887 SSL_CTX_set_tlsext_servername_callback(ctx2, ssl_servername_cb);
1888 SSL_CTX_set_tlsext_servername_arg(ctx2, &tlsextcbp);
1889 SSL_CTX_set_tlsext_servername_callback(ctx, ssl_servername_cb);
1890 SSL_CTX_set_tlsext_servername_arg(ctx, &tlsextcbp);
1891 }
1892
1893 #ifndef OPENSSL_NO_SRP
1894 if (srp_verifier_file != NULL) {
1895 srp_callback_parm.vb = SRP_VBASE_new(srpuserseed);
1896 srp_callback_parm.user = NULL;
1897 srp_callback_parm.login = NULL;
1898 if ((ret =
1899 SRP_VBASE_init(srp_callback_parm.vb,
1900 srp_verifier_file)) != SRP_NO_ERROR) {
1901 BIO_printf(bio_err,
1902 "Cannot initialize SRP verifier file \"%s\":ret=%d\n",
1903 srp_verifier_file, ret);
1904 goto end;
1905 }
1906 SSL_CTX_set_verify(ctx, SSL_VERIFY_NONE, verify_callback);
1907 SSL_CTX_set_srp_cb_arg(ctx, &srp_callback_parm);
1908 SSL_CTX_set_srp_username_callback(ctx, ssl_srp_server_param_cb);
1909 } else
1910 #endif
1911 if (CAfile != NULL) {
1912 SSL_CTX_set_client_CA_list(ctx, SSL_load_client_CA_file(CAfile));
1913
1914 if (ctx2)
1915 SSL_CTX_set_client_CA_list(ctx2, SSL_load_client_CA_file(CAfile));
1916 }
1917 #ifndef OPENSSL_NO_OCSP
1918 if (s_tlsextstatus) {
1919 SSL_CTX_set_tlsext_status_cb(ctx, cert_status_cb);
1920 SSL_CTX_set_tlsext_status_arg(ctx, &tlscstatp);
1921 if (ctx2) {
1922 SSL_CTX_set_tlsext_status_cb(ctx2, cert_status_cb);
1923 SSL_CTX_set_tlsext_status_arg(ctx2, &tlscstatp);
1924 }
1925 }
1926 #endif
1927
1928 BIO_printf(bio_s_out, "ACCEPT\n");
1929 (void)BIO_flush(bio_s_out);
1930 if (rev)
1931 server_cb = rev_body;
1932 else if (www)
1933 server_cb = www_body;
1934 else
1935 server_cb = sv_body;
1936 #ifdef AF_UNIX
1937 if (socket_family == AF_UNIX
1938 && unlink_unix_path)
1939 unlink(host);
1940 #endif
1941 do_server(&accept_socket, host, port, socket_family, socket_type,
1942 server_cb, context, naccept);
1943 print_stats(bio_s_out, ctx);
1944 ret = 0;
1945 end:
1946 SSL_CTX_free(ctx);
1947 X509_free(s_cert);
1948 sk_X509_CRL_pop_free(crls, X509_CRL_free);
1949 X509_free(s_dcert);
1950 EVP_PKEY_free(s_key);
1951 EVP_PKEY_free(s_dkey);
1952 sk_X509_pop_free(s_chain, X509_free);
1953 sk_X509_pop_free(s_dchain, X509_free);
1954 OPENSSL_free(pass);
1955 OPENSSL_free(dpass);
1956 OPENSSL_free(host);
1957 OPENSSL_free(port);
1958 X509_VERIFY_PARAM_free(vpm);
1959 free_sessions();
1960 OPENSSL_free(tlscstatp.host);
1961 OPENSSL_free(tlscstatp.port);
1962 OPENSSL_free(tlscstatp.path);
1963 SSL_CTX_free(ctx2);
1964 X509_free(s_cert2);
1965 EVP_PKEY_free(s_key2);
1966 #ifndef OPENSSL_NO_NEXTPROTONEG
1967 OPENSSL_free(next_proto.data);
1968 #endif
1969 OPENSSL_free(alpn_ctx.data);
1970 ssl_excert_free(exc);
1971 sk_OPENSSL_STRING_free(ssl_args);
1972 SSL_CONF_CTX_free(cctx);
1973 release_engine(engine);
1974 BIO_free(bio_s_out);
1975 bio_s_out = NULL;
1976 BIO_free(bio_s_msg);
1977 bio_s_msg = NULL;
1978 #ifdef CHARSET_EBCDIC
1979 BIO_meth_free(methods_ebcdic);
1980 #endif
1981 return (ret);
1982 }
1983
1984 static void print_stats(BIO *bio, SSL_CTX *ssl_ctx)
1985 {
1986 BIO_printf(bio, "%4ld items in the session cache\n",
1987 SSL_CTX_sess_number(ssl_ctx));
1988 BIO_printf(bio, "%4ld client connects (SSL_connect())\n",
1989 SSL_CTX_sess_connect(ssl_ctx));
1990 BIO_printf(bio, "%4ld client renegotiates (SSL_connect())\n",
1991 SSL_CTX_sess_connect_renegotiate(ssl_ctx));
1992 BIO_printf(bio, "%4ld client connects that finished\n",
1993 SSL_CTX_sess_connect_good(ssl_ctx));
1994 BIO_printf(bio, "%4ld server accepts (SSL_accept())\n",
1995 SSL_CTX_sess_accept(ssl_ctx));
1996 BIO_printf(bio, "%4ld server renegotiates (SSL_accept())\n",
1997 SSL_CTX_sess_accept_renegotiate(ssl_ctx));
1998 BIO_printf(bio, "%4ld server accepts that finished\n",
1999 SSL_CTX_sess_accept_good(ssl_ctx));
2000 BIO_printf(bio, "%4ld session cache hits\n", SSL_CTX_sess_hits(ssl_ctx));
2001 BIO_printf(bio, "%4ld session cache misses\n",
2002 SSL_CTX_sess_misses(ssl_ctx));
2003 BIO_printf(bio, "%4ld session cache timeouts\n",
2004 SSL_CTX_sess_timeouts(ssl_ctx));
2005 BIO_printf(bio, "%4ld callback cache hits\n",
2006 SSL_CTX_sess_cb_hits(ssl_ctx));
2007 BIO_printf(bio, "%4ld cache full overflows (%ld allowed)\n",
2008 SSL_CTX_sess_cache_full(ssl_ctx),
2009 SSL_CTX_sess_get_cache_size(ssl_ctx));
2010 }
2011
2012 static int sv_body(int s, int stype, unsigned char *context)
2013 {
2014 char *buf = NULL;
2015 fd_set readfds;
2016 int ret = 1, width;
2017 int k, i;
2018 unsigned long l;
2019 SSL *con = NULL;
2020 BIO *sbio;
2021 struct timeval timeout;
2022 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
2023 struct timeval tv;
2024 #else
2025 struct timeval *timeoutp;
2026 #endif
2027
2028 buf = app_malloc(bufsize, "server buffer");
2029 if (s_nbio) {
2030 if (!BIO_socket_nbio(s, 1))
2031 ERR_print_errors(bio_err);
2032 else if (!s_quiet)
2033 BIO_printf(bio_err, "Turned on non blocking io\n");
2034 }
2035
2036 if (con == NULL) {
2037 con = SSL_new(ctx);
2038
2039 if (s_tlsextdebug) {
2040 SSL_set_tlsext_debug_callback(con, tlsext_cb);
2041 SSL_set_tlsext_debug_arg(con, bio_s_out);
2042 }
2043
2044 if (context
2045 && !SSL_set_session_id_context(con,
2046 context, strlen((char *)context))) {
2047 BIO_printf(bio_err, "Error setting session id context\n");
2048 ret = -1;
2049 goto err;
2050 }
2051 }
2052 if (!SSL_clear(con)) {
2053 BIO_printf(bio_err, "Error clearing SSL connection\n");
2054 ret = -1;
2055 goto err;
2056 }
2057 #ifndef OPENSSL_NO_DTLS
2058 if (stype == SOCK_DGRAM) {
2059
2060 sbio = BIO_new_dgram(s, BIO_NOCLOSE);
2061
2062 if (enable_timeouts) {
2063 timeout.tv_sec = 0;
2064 timeout.tv_usec = DGRAM_RCV_TIMEOUT;
2065 BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_RECV_TIMEOUT, 0, &timeout);
2066
2067 timeout.tv_sec = 0;
2068 timeout.tv_usec = DGRAM_SND_TIMEOUT;
2069 BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_SEND_TIMEOUT, 0, &timeout);
2070 }
2071
2072 if (socket_mtu) {
2073 if (socket_mtu < DTLS_get_link_min_mtu(con)) {
2074 BIO_printf(bio_err, "MTU too small. Must be at least %ld\n",
2075 DTLS_get_link_min_mtu(con));
2076 ret = -1;
2077 BIO_free(sbio);
2078 goto err;
2079 }
2080 SSL_set_options(con, SSL_OP_NO_QUERY_MTU);
2081 if (!DTLS_set_link_mtu(con, socket_mtu)) {
2082 BIO_printf(bio_err, "Failed to set MTU\n");
2083 ret = -1;
2084 BIO_free(sbio);
2085 goto err;
2086 }
2087 } else
2088 /* want to do MTU discovery */
2089 BIO_ctrl(sbio, BIO_CTRL_DGRAM_MTU_DISCOVER, 0, NULL);
2090
2091 /* turn on cookie exchange */
2092 SSL_set_options(con, SSL_OP_COOKIE_EXCHANGE);
2093 } else
2094 #endif
2095 sbio = BIO_new_socket(s, BIO_NOCLOSE);
2096
2097 if (s_nbio_test) {
2098 BIO *test;
2099
2100 test = BIO_new(BIO_f_nbio_test());
2101 sbio = BIO_push(test, sbio);
2102 }
2103
2104 SSL_set_bio(con, sbio, sbio);
2105 SSL_set_accept_state(con);
2106 /* SSL_set_fd(con,s); */
2107
2108 if (s_debug) {
2109 BIO_set_callback(SSL_get_rbio(con), bio_dump_callback);
2110 BIO_set_callback_arg(SSL_get_rbio(con), (char *)bio_s_out);
2111 }
2112 if (s_msg) {
2113 #ifndef OPENSSL_NO_SSL_TRACE
2114 if (s_msg == 2)
2115 SSL_set_msg_callback(con, SSL_trace);
2116 else
2117 #endif
2118 SSL_set_msg_callback(con, msg_cb);
2119 SSL_set_msg_callback_arg(con, bio_s_msg ? bio_s_msg : bio_s_out);
2120 }
2121
2122 if (s_tlsextdebug) {
2123 SSL_set_tlsext_debug_callback(con, tlsext_cb);
2124 SSL_set_tlsext_debug_arg(con, bio_s_out);
2125 }
2126
2127 if (fileno_stdin() > s)
2128 width = fileno_stdin() + 1;
2129 else
2130 width = s + 1;
2131 for (;;) {
2132 int read_from_terminal;
2133 int read_from_sslcon;
2134
2135 read_from_terminal = 0;
2136 read_from_sslcon = SSL_has_pending(con)
2137 || (async && SSL_waiting_for_async(con));
2138
2139 if (!read_from_sslcon) {
2140 FD_ZERO(&readfds);
2141 #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS)
2142 openssl_fdset(fileno_stdin(), &readfds);
2143 #endif
2144 openssl_fdset(s, &readfds);
2145 /*
2146 * Note: under VMS with SOCKETSHR the second parameter is
2147 * currently of type (int *) whereas under other systems it is
2148 * (void *) if you don't have a cast it will choke the compiler:
2149 * if you do have a cast then you can either go for (int *) or
2150 * (void *).
2151 */
2152 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
2153 /*
2154 * Under DOS (non-djgpp) and Windows we can't select on stdin:
2155 * only on sockets. As a workaround we timeout the select every
2156 * second and check for any keypress. In a proper Windows
2157 * application we wouldn't do this because it is inefficient.
2158 */
2159 tv.tv_sec = 1;
2160 tv.tv_usec = 0;
2161 i = select(width, (void *)&readfds, NULL, NULL, &tv);
2162 if (has_stdin_waiting())
2163 read_from_terminal = 1;
2164 if ((i < 0) || (!i && !read_from_terminal))
2165 continue;
2166 #else
2167 if ((SSL_version(con) == DTLS1_VERSION) &&
2168 DTLSv1_get_timeout(con, &timeout))
2169 timeoutp = &timeout;
2170 else
2171 timeoutp = NULL;
2172
2173 i = select(width, (void *)&readfds, NULL, NULL, timeoutp);
2174
2175 if ((SSL_version(con) == DTLS1_VERSION)
2176 && DTLSv1_handle_timeout(con) > 0) {
2177 BIO_printf(bio_err, "TIMEOUT occurred\n");
2178 }
2179
2180 if (i <= 0)
2181 continue;
2182 if (FD_ISSET(fileno_stdin(), &readfds))
2183 read_from_terminal = 1;
2184 #endif
2185 if (FD_ISSET(s, &readfds))
2186 read_from_sslcon = 1;
2187 }
2188 if (read_from_terminal) {
2189 if (s_crlf) {
2190 int j, lf_num;
2191
2192 i = raw_read_stdin(buf, bufsize / 2);
2193 lf_num = 0;
2194 /* both loops are skipped when i <= 0 */
2195 for (j = 0; j < i; j++)
2196 if (buf[j] == '\n')
2197 lf_num++;
2198 for (j = i - 1; j >= 0; j--) {
2199 buf[j + lf_num] = buf[j];
2200 if (buf[j] == '\n') {
2201 lf_num--;
2202 i++;
2203 buf[j + lf_num] = '\r';
2204 }
2205 }
2206 assert(lf_num == 0);
2207 } else
2208 i = raw_read_stdin(buf, bufsize);
2209
2210 if (!s_quiet && !s_brief) {
2211 if ((i <= 0) || (buf[0] == 'Q')) {
2212 BIO_printf(bio_s_out, "DONE\n");
2213 (void)BIO_flush(bio_s_out);
2214 BIO_closesocket(s);
2215 close_accept_socket();
2216 ret = -11;
2217 goto err;
2218 }
2219 if ((i <= 0) || (buf[0] == 'q')) {
2220 BIO_printf(bio_s_out, "DONE\n");
2221 (void)BIO_flush(bio_s_out);
2222 if (SSL_version(con) != DTLS1_VERSION)
2223 BIO_closesocket(s);
2224 /*
2225 * close_accept_socket(); ret= -11;
2226 */
2227 goto err;
2228 }
2229 if ((buf[0] == 'r') && ((buf[1] == '\n') || (buf[1] == '\r'))) {
2230 SSL_renegotiate(con);
2231 i = SSL_do_handshake(con);
2232 printf("SSL_do_handshake -> %d\n", i);
2233 i = 0; /* 13; */
2234 continue;
2235 /*
2236 * strcpy(buf,"server side RE-NEGOTIATE\n");
2237 */
2238 }
2239 if ((buf[0] == 'R') && ((buf[1] == '\n') || (buf[1] == '\r'))) {
2240 SSL_set_verify(con,
2241 SSL_VERIFY_PEER | SSL_VERIFY_CLIENT_ONCE,
2242 NULL);
2243 SSL_renegotiate(con);
2244 i = SSL_do_handshake(con);
2245 printf("SSL_do_handshake -> %d\n", i);
2246 i = 0; /* 13; */
2247 continue;
2248 /*
2249 * strcpy(buf,"server side RE-NEGOTIATE asking for client
2250 * cert\n");
2251 */
2252 }
2253 if (buf[0] == 'P') {
2254 static const char *str = "Lets print some clear text\n";
2255 BIO_write(SSL_get_wbio(con), str, strlen(str));
2256 }
2257 if (buf[0] == 'S') {
2258 print_stats(bio_s_out, SSL_get_SSL_CTX(con));
2259 }
2260 }
2261 #ifdef CHARSET_EBCDIC
2262 ebcdic2ascii(buf, buf, i);
2263 #endif
2264 l = k = 0;
2265 for (;;) {
2266 /* should do a select for the write */
2267 #ifdef RENEG
2268 static count = 0;
2269 if (++count == 100) {
2270 count = 0;
2271 SSL_renegotiate(con);
2272 }
2273 #endif
2274 k = SSL_write(con, &(buf[l]), (unsigned int)i);
2275 #ifndef OPENSSL_NO_SRP
2276 while (SSL_get_error(con, k) == SSL_ERROR_WANT_X509_LOOKUP) {
2277 BIO_printf(bio_s_out, "LOOKUP renego during write\n");
2278 SRP_user_pwd_free(srp_callback_parm.user);
2279 srp_callback_parm.user =
2280 SRP_VBASE_get1_by_user(srp_callback_parm.vb,
2281 srp_callback_parm.login);
2282 if (srp_callback_parm.user)
2283 BIO_printf(bio_s_out, "LOOKUP done %s\n",
2284 srp_callback_parm.user->info);
2285 else
2286 BIO_printf(bio_s_out, "LOOKUP not successful\n");
2287 k = SSL_write(con, &(buf[l]), (unsigned int)i);
2288 }
2289 #endif
2290 switch (SSL_get_error(con, k)) {
2291 case SSL_ERROR_NONE:
2292 break;
2293 case SSL_ERROR_WANT_ASYNC:
2294 BIO_printf(bio_s_out, "Write BLOCK (Async)\n");
2295 (void)BIO_flush(bio_s_out);
2296 wait_for_async(con);
2297 break;
2298 case SSL_ERROR_WANT_WRITE:
2299 case SSL_ERROR_WANT_READ:
2300 case SSL_ERROR_WANT_X509_LOOKUP:
2301 BIO_printf(bio_s_out, "Write BLOCK\n");
2302 (void)BIO_flush(bio_s_out);
2303 break;
2304 case SSL_ERROR_WANT_ASYNC_JOB:
2305 /*
2306 * This shouldn't ever happen in s_server. Treat as an error
2307 */
2308 case SSL_ERROR_SYSCALL:
2309 case SSL_ERROR_SSL:
2310 BIO_printf(bio_s_out, "ERROR\n");
2311 (void)BIO_flush(bio_s_out);
2312 ERR_print_errors(bio_err);
2313 ret = 1;
2314 goto err;
2315 /* break; */
2316 case SSL_ERROR_ZERO_RETURN:
2317 BIO_printf(bio_s_out, "DONE\n");
2318 (void)BIO_flush(bio_s_out);
2319 ret = 1;
2320 goto err;
2321 }
2322 if (k > 0) {
2323 l += k;
2324 i -= k;
2325 }
2326 if (i <= 0)
2327 break;
2328 }
2329 }
2330 if (read_from_sslcon) {
2331 /*
2332 * init_ssl_connection handles all async events itself so if we're
2333 * waiting for async then we shouldn't go back into
2334 * init_ssl_connection
2335 */
2336 if ((!async || !SSL_waiting_for_async(con))
2337 && !SSL_is_init_finished(con)) {
2338 i = init_ssl_connection(con);
2339
2340 if (i < 0) {
2341 ret = 0;
2342 goto err;
2343 } else if (i == 0) {
2344 ret = 1;
2345 goto err;
2346 }
2347 } else {
2348 again:
2349 i = SSL_read(con, (char *)buf, bufsize);
2350 #ifndef OPENSSL_NO_SRP
2351 while (SSL_get_error(con, i) == SSL_ERROR_WANT_X509_LOOKUP) {
2352 BIO_printf(bio_s_out, "LOOKUP renego during read\n");
2353 SRP_user_pwd_free(srp_callback_parm.user);
2354 srp_callback_parm.user =
2355 SRP_VBASE_get1_by_user(srp_callback_parm.vb,
2356 srp_callback_parm.login);
2357 if (srp_callback_parm.user)
2358 BIO_printf(bio_s_out, "LOOKUP done %s\n",
2359 srp_callback_parm.user->info);
2360 else
2361 BIO_printf(bio_s_out, "LOOKUP not successful\n");
2362 i = SSL_read(con, (char *)buf, bufsize);
2363 }
2364 #endif
2365 switch (SSL_get_error(con, i)) {
2366 case SSL_ERROR_NONE:
2367 #ifdef CHARSET_EBCDIC
2368 ascii2ebcdic(buf, buf, i);
2369 #endif
2370 raw_write_stdout(buf, (unsigned int)i);
2371 (void)BIO_flush(bio_s_out);
2372 if (SSL_has_pending(con))
2373 goto again;
2374 break;
2375 case SSL_ERROR_WANT_ASYNC:
2376 BIO_printf(bio_s_out, "Read BLOCK (Async)\n");
2377 (void)BIO_flush(bio_s_out);
2378 wait_for_async(con);
2379 break;
2380 case SSL_ERROR_WANT_WRITE:
2381 case SSL_ERROR_WANT_READ:
2382 BIO_printf(bio_s_out, "Read BLOCK\n");
2383 (void)BIO_flush(bio_s_out);
2384 break;
2385 case SSL_ERROR_WANT_ASYNC_JOB:
2386 /*
2387 * This shouldn't ever happen in s_server. Treat as an error
2388 */
2389 case SSL_ERROR_SYSCALL:
2390 case SSL_ERROR_SSL:
2391 BIO_printf(bio_s_out, "ERROR\n");
2392 (void)BIO_flush(bio_s_out);
2393 ERR_print_errors(bio_err);
2394 ret = 1;
2395 goto err;
2396 case SSL_ERROR_ZERO_RETURN:
2397 BIO_printf(bio_s_out, "DONE\n");
2398 (void)BIO_flush(bio_s_out);
2399 ret = 1;
2400 goto err;
2401 }
2402 }
2403 }
2404 }
2405 err:
2406 if (con != NULL) {
2407 BIO_printf(bio_s_out, "shutting down SSL\n");
2408 SSL_set_shutdown(con, SSL_SENT_SHUTDOWN | SSL_RECEIVED_SHUTDOWN);
2409 SSL_free(con);
2410 }
2411 BIO_printf(bio_s_out, "CONNECTION CLOSED\n");
2412 OPENSSL_clear_free(buf, bufsize);
2413 if (ret >= 0)
2414 BIO_printf(bio_s_out, "ACCEPT\n");
2415 (void)BIO_flush(bio_s_out);
2416 return (ret);
2417 }
2418
2419 static void close_accept_socket(void)
2420 {
2421 BIO_printf(bio_err, "shutdown accept socket\n");
2422 if (accept_socket >= 0) {
2423 BIO_closesocket(accept_socket);
2424 }
2425 }
2426
2427 static int init_ssl_connection(SSL *con)
2428 {
2429 int i;
2430 const char *str;
2431 X509 *peer;
2432 long verify_err;
2433 char buf[BUFSIZ];
2434 #if !defined(OPENSSL_NO_NEXTPROTONEG)
2435 const unsigned char *next_proto_neg;
2436 unsigned next_proto_neg_len;
2437 #endif
2438 unsigned char *exportedkeymat;
2439 int retry = 0;
2440
2441 #ifndef OPENSSL_NO_DTLS
2442 if (dtlslisten) {
2443 BIO_ADDR *client = NULL;
2444
2445 if ((client = BIO_ADDR_new()) == NULL) {
2446 BIO_printf(bio_err, "ERROR - memory\n");
2447 return 0;
2448 }
2449 i = DTLSv1_listen(con, client);
2450 if (i > 0) {
2451 BIO *wbio;
2452 int fd = -1;
2453
2454 wbio = SSL_get_wbio(con);
2455 if (wbio) {
2456 BIO_get_fd(wbio, &fd);
2457 }
2458
2459 if (!wbio || BIO_connect(fd, client, 0) == 0) {
2460 BIO_printf(bio_err, "ERROR - unable to connect\n");
2461 BIO_ADDR_free(client);
2462 return 0;
2463 }
2464 BIO_ADDR_free(client);
2465 dtlslisten = 0;
2466 i = SSL_accept(con);
2467 } else {
2468 BIO_ADDR_free(client);
2469 }
2470 } else
2471 #endif
2472
2473 do {
2474 i = SSL_accept(con);
2475
2476 if (i <= 0)
2477 retry = BIO_sock_should_retry(i);
2478 #ifdef CERT_CB_TEST_RETRY
2479 {
2480 while (i <= 0
2481 && SSL_get_error(con, i) == SSL_ERROR_WANT_X509_LOOKUP
2482 && SSL_get_state(con) == TLS_ST_SR_CLNT_HELLO) {
2483 BIO_printf(bio_err,
2484 "LOOKUP from certificate callback during accept\n");
2485 i = SSL_accept(con);
2486 if (i <= 0)
2487 retry = BIO_sock_should_retry(i);
2488 }
2489 }
2490 #endif
2491
2492 #ifndef OPENSSL_NO_SRP
2493 while (i <= 0
2494 && SSL_get_error(con, i) == SSL_ERROR_WANT_X509_LOOKUP) {
2495 BIO_printf(bio_s_out, "LOOKUP during accept %s\n",
2496 srp_callback_parm.login);
2497 SRP_user_pwd_free(srp_callback_parm.user);
2498 srp_callback_parm.user =
2499 SRP_VBASE_get1_by_user(srp_callback_parm.vb,
2500 srp_callback_parm.login);
2501 if (srp_callback_parm.user)
2502 BIO_printf(bio_s_out, "LOOKUP done %s\n",
2503 srp_callback_parm.user->info);
2504 else
2505 BIO_printf(bio_s_out, "LOOKUP not successful\n");
2506 i = SSL_accept(con);
2507 if (i <= 0)
2508 retry = BIO_sock_should_retry(i);
2509 }
2510 #endif
2511 } while (i < 0 && SSL_waiting_for_async(con));
2512
2513 if (i <= 0) {
2514 if ((dtlslisten && i == 0)
2515 || (!dtlslisten && retry)) {
2516 BIO_printf(bio_s_out, "DELAY\n");
2517 return (1);
2518 }
2519
2520 BIO_printf(bio_err, "ERROR\n");
2521
2522 verify_err = SSL_get_verify_result(con);
2523 if (verify_err != X509_V_OK) {
2524 BIO_printf(bio_err, "verify error:%s\n",
2525 X509_verify_cert_error_string(verify_err));
2526 }
2527 /* Always print any error messages */
2528 ERR_print_errors(bio_err);
2529 return (0);
2530 }
2531
2532 if (s_brief)
2533 print_ssl_summary(con);
2534
2535 PEM_write_bio_SSL_SESSION(bio_s_out, SSL_get_session(con));
2536
2537 peer = SSL_get_peer_certificate(con);
2538 if (peer != NULL) {
2539 BIO_printf(bio_s_out, "Client certificate\n");
2540 PEM_write_bio_X509(bio_s_out, peer);
2541 X509_NAME_oneline(X509_get_subject_name(peer), buf, sizeof buf);
2542 BIO_printf(bio_s_out, "subject=%s\n", buf);
2543 X509_NAME_oneline(X509_get_issuer_name(peer), buf, sizeof buf);
2544 BIO_printf(bio_s_out, "issuer=%s\n", buf);
2545 X509_free(peer);
2546 peer = NULL;
2547 }
2548
2549 if (SSL_get_shared_ciphers(con, buf, sizeof buf) != NULL)
2550 BIO_printf(bio_s_out, "Shared ciphers:%s\n", buf);
2551 str = SSL_CIPHER_get_name(SSL_get_current_cipher(con));
2552 ssl_print_sigalgs(bio_s_out, con);
2553 #ifndef OPENSSL_NO_EC
2554 ssl_print_point_formats(bio_s_out, con);
2555 ssl_print_groups(bio_s_out, con, 0);
2556 #endif
2557 BIO_printf(bio_s_out, "CIPHER is %s\n", (str != NULL) ? str : "(NONE)");
2558
2559 #if !defined(OPENSSL_NO_NEXTPROTONEG)
2560 SSL_get0_next_proto_negotiated(con, &next_proto_neg, &next_proto_neg_len);
2561 if (next_proto_neg) {
2562 BIO_printf(bio_s_out, "NEXTPROTO is ");
2563 BIO_write(bio_s_out, next_proto_neg, next_proto_neg_len);
2564 BIO_printf(bio_s_out, "\n");
2565 }
2566 #endif
2567 #ifndef OPENSSL_NO_SRTP
2568 {
2569 SRTP_PROTECTION_PROFILE *srtp_profile
2570 = SSL_get_selected_srtp_profile(con);
2571
2572 if (srtp_profile)
2573 BIO_printf(bio_s_out, "SRTP Extension negotiated, profile=%s\n",
2574 srtp_profile->name);
2575 }
2576 #endif
2577 if (SSL_session_reused(con))
2578 BIO_printf(bio_s_out, "Reused session-id\n");
2579 BIO_printf(bio_s_out, "Secure Renegotiation IS%s supported\n",
2580 SSL_get_secure_renegotiation_support(con) ? "" : " NOT");
2581 if (keymatexportlabel != NULL) {
2582 BIO_printf(bio_s_out, "Keying material exporter:\n");
2583 BIO_printf(bio_s_out, " Label: '%s'\n", keymatexportlabel);
2584 BIO_printf(bio_s_out, " Length: %i bytes\n", keymatexportlen);
2585 exportedkeymat = app_malloc(keymatexportlen, "export key");
2586 if (!SSL_export_keying_material(con, exportedkeymat,
2587 keymatexportlen,
2588 keymatexportlabel,
2589 strlen(keymatexportlabel),
2590 NULL, 0, 0)) {
2591 BIO_printf(bio_s_out, " Error\n");
2592 } else {
2593 BIO_printf(bio_s_out, " Keying material: ");
2594 for (i = 0; i < keymatexportlen; i++)
2595 BIO_printf(bio_s_out, "%02X", exportedkeymat[i]);
2596 BIO_printf(bio_s_out, "\n");
2597 }
2598 OPENSSL_free(exportedkeymat);
2599 }
2600
2601 (void)BIO_flush(bio_s_out);
2602 return (1);
2603 }
2604
2605 #ifndef OPENSSL_NO_DH
2606 static DH *load_dh_param(const char *dhfile)
2607 {
2608 DH *ret = NULL;
2609 BIO *bio;
2610
2611 if ((bio = BIO_new_file(dhfile, "r")) == NULL)
2612 goto err;
2613 ret = PEM_read_bio_DHparams(bio, NULL, NULL, NULL);
2614 err:
2615 BIO_free(bio);
2616 return (ret);
2617 }
2618 #endif
2619
2620 static int www_body(int s, int stype, unsigned char *context)
2621 {
2622 char *buf = NULL;
2623 int ret = 1;
2624 int i, j, k, dot;
2625 SSL *con;
2626 const SSL_CIPHER *c;
2627 BIO *io, *ssl_bio, *sbio;
2628 #ifdef RENEG
2629 int total_bytes = 0;
2630 #endif
2631 int width;
2632 fd_set readfds;
2633
2634 /* Set width for a select call if needed */
2635 width = s + 1;
2636
2637 buf = app_malloc(bufsize, "server www buffer");
2638 io = BIO_new(BIO_f_buffer());
2639 ssl_bio = BIO_new(BIO_f_ssl());
2640 if ((io == NULL) || (ssl_bio == NULL))
2641 goto err;
2642
2643 if (s_nbio) {
2644 if (!BIO_socket_nbio(s, 1))
2645 ERR_print_errors(bio_err);
2646 else if (!s_quiet)
2647 BIO_printf(bio_err, "Turned on non blocking io\n");
2648 }
2649
2650 /* lets make the output buffer a reasonable size */
2651 if (!BIO_set_write_buffer_size(io, bufsize))
2652 goto err;
2653
2654 if ((con = SSL_new(ctx)) == NULL)
2655 goto err;
2656
2657 if (s_tlsextdebug) {
2658 SSL_set_tlsext_debug_callback(con, tlsext_cb);
2659 SSL_set_tlsext_debug_arg(con, bio_s_out);
2660 }
2661
2662 if (context
2663 && !SSL_set_session_id_context(con, context,
2664 strlen((char *)context)))
2665 goto err;
2666
2667 sbio = BIO_new_socket(s, BIO_NOCLOSE);
2668 if (s_nbio_test) {
2669 BIO *test;
2670
2671 test = BIO_new(BIO_f_nbio_test());
2672 sbio = BIO_push(test, sbio);
2673 }
2674 SSL_set_bio(con, sbio, sbio);
2675 SSL_set_accept_state(con);
2676
2677 /* SSL_set_fd(con,s); */
2678 BIO_set_ssl(ssl_bio, con, BIO_CLOSE);
2679 BIO_push(io, ssl_bio);
2680 #ifdef CHARSET_EBCDIC
2681 io = BIO_push(BIO_new(BIO_f_ebcdic_filter()), io);
2682 #endif
2683
2684 if (s_debug) {
2685 BIO_set_callback(SSL_get_rbio(con), bio_dump_callback);
2686 BIO_set_callback_arg(SSL_get_rbio(con), (char *)bio_s_out);
2687 }
2688 if (s_msg) {
2689 #ifndef OPENSSL_NO_SSL_TRACE
2690 if (s_msg == 2)
2691 SSL_set_msg_callback(con, SSL_trace);
2692 else
2693 #endif
2694 SSL_set_msg_callback(con, msg_cb);
2695 SSL_set_msg_callback_arg(con, bio_s_msg ? bio_s_msg : bio_s_out);
2696 }
2697
2698 for (;;) {
2699 i = BIO_gets(io, buf, bufsize - 1);
2700 if (i < 0) { /* error */
2701 if (!BIO_should_retry(io) && !SSL_waiting_for_async(con)) {
2702 if (!s_quiet)
2703 ERR_print_errors(bio_err);
2704 goto err;
2705 } else {
2706 BIO_printf(bio_s_out, "read R BLOCK\n");
2707 #ifndef OPENSSL_NO_SRP
2708 if (BIO_should_io_special(io)
2709 && BIO_get_retry_reason(io) == BIO_RR_SSL_X509_LOOKUP) {
2710 BIO_printf(bio_s_out, "LOOKUP renego during read\n");
2711 SRP_user_pwd_free(srp_callback_parm.user);
2712 srp_callback_parm.user =
2713 SRP_VBASE_get1_by_user(srp_callback_parm.vb,
2714 srp_callback_parm.login);
2715 if (srp_callback_parm.user)
2716 BIO_printf(bio_s_out, "LOOKUP done %s\n",
2717 srp_callback_parm.user->info);
2718 else
2719 BIO_printf(bio_s_out, "LOOKUP not successful\n");
2720 continue;
2721 }
2722 #endif
2723 #if !defined(OPENSSL_SYS_MSDOS)
2724 sleep(1);
2725 #endif
2726 continue;
2727 }
2728 } else if (i == 0) { /* end of input */
2729 ret = 1;
2730 goto end;
2731 }
2732
2733 /* else we have data */
2734 if (((www == 1) && (strncmp("GET ", buf, 4) == 0)) ||
2735 ((www == 2) && (strncmp("GET /stats ", buf, 11) == 0))) {
2736 char *p;
2737 X509 *peer = NULL;
2738 STACK_OF(SSL_CIPHER) *sk;
2739 static const char *space = " ";
2740
2741 if (www == 1 && strncmp("GET /reneg", buf, 10) == 0) {
2742 if (strncmp("GET /renegcert", buf, 14) == 0)
2743 SSL_set_verify(con,
2744 SSL_VERIFY_PEER | SSL_VERIFY_CLIENT_ONCE,
2745 NULL);
2746 i = SSL_renegotiate(con);
2747 BIO_printf(bio_s_out, "SSL_renegotiate -> %d\n", i);
2748 /* Send the HelloRequest */
2749 i = SSL_do_handshake(con);
2750 if (i <= 0) {
2751 BIO_printf(bio_s_out, "SSL_do_handshake() Retval %d\n",
2752 SSL_get_error(con, i));
2753 ERR_print_errors(bio_err);
2754 goto err;
2755 }
2756 /* Wait for a ClientHello to come back */
2757 FD_ZERO(&readfds);
2758 openssl_fdset(s, &readfds);
2759 i = select(width, (void *)&readfds, NULL, NULL, NULL);
2760 if (i <= 0 || !FD_ISSET(s, &readfds)) {
2761 BIO_printf(bio_s_out,
2762 "Error waiting for client response\n");
2763 ERR_print_errors(bio_err);
2764 goto err;
2765 }
2766 /*
2767 * We're not actually expecting any data here and we ignore
2768 * any that is sent. This is just to force the handshake that
2769 * we're expecting to come from the client. If they haven't
2770 * sent one there's not much we can do.
2771 */
2772 BIO_gets(io, buf, bufsize - 1);
2773 }
2774
2775 BIO_puts(io,
2776 "HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n");
2777 BIO_puts(io, "<HTML><BODY BGCOLOR=\"#ffffff\">\n");
2778 BIO_puts(io, "<pre>\n");
2779 /* BIO_puts(io, OpenSSL_version(OPENSSL_VERSION)); */
2780 BIO_puts(io, "\n");
2781 for (i = 0; i < local_argc; i++) {
2782 const char *myp;
2783 for (myp = local_argv[i]; *myp; myp++)
2784 switch (*myp) {
2785 case '<':
2786 BIO_puts(io, "&lt;");
2787 break;
2788 case '>':
2789 BIO_puts(io, "&gt;");
2790 break;
2791 case '&':
2792 BIO_puts(io, "&amp;");
2793 break;
2794 default:
2795 BIO_write(io, myp, 1);
2796 break;
2797 }
2798 BIO_write(io, " ", 1);
2799 }
2800 BIO_puts(io, "\n");
2801
2802 BIO_printf(io,
2803 "Secure Renegotiation IS%s supported\n",
2804 SSL_get_secure_renegotiation_support(con) ?
2805 "" : " NOT");
2806
2807 /*
2808 * The following is evil and should not really be done
2809 */
2810 BIO_printf(io, "Ciphers supported in s_server binary\n");
2811 sk = SSL_get_ciphers(con);
2812 j = sk_SSL_CIPHER_num(sk);
2813 for (i = 0; i < j; i++) {
2814 c = sk_SSL_CIPHER_value(sk, i);
2815 BIO_printf(io, "%-11s:%-25s ",
2816 SSL_CIPHER_get_version(c), SSL_CIPHER_get_name(c));
2817 if ((((i + 1) % 2) == 0) && (i + 1 != j))
2818 BIO_puts(io, "\n");
2819 }
2820 BIO_puts(io, "\n");
2821 p = SSL_get_shared_ciphers(con, buf, bufsize);
2822 if (p != NULL) {
2823 BIO_printf(io,
2824 "---\nCiphers common between both SSL end points:\n");
2825 j = i = 0;
2826 while (*p) {
2827 if (*p == ':') {
2828 BIO_write(io, space, 26 - j);
2829 i++;
2830 j = 0;
2831 BIO_write(io, ((i % 3) ? " " : "\n"), 1);
2832 } else {
2833 BIO_write(io, p, 1);
2834 j++;
2835 }
2836 p++;
2837 }
2838 BIO_puts(io, "\n");
2839 }
2840 ssl_print_sigalgs(io, con);
2841 #ifndef OPENSSL_NO_EC
2842 ssl_print_groups(io, con, 0);
2843 #endif
2844 BIO_printf(io, (SSL_session_reused(con)
2845 ? "---\nReused, " : "---\nNew, "));
2846 c = SSL_get_current_cipher(con);
2847 BIO_printf(io, "%s, Cipher is %s\n",
2848 SSL_CIPHER_get_version(c), SSL_CIPHER_get_name(c));
2849 SSL_SESSION_print(io, SSL_get_session(con));
2850 BIO_printf(io, "---\n");
2851 print_stats(io, SSL_get_SSL_CTX(con));
2852 BIO_printf(io, "---\n");
2853 peer = SSL_get_peer_certificate(con);
2854 if (peer != NULL) {
2855 BIO_printf(io, "Client certificate\n");
2856 X509_print(io, peer);
2857 PEM_write_bio_X509(io, peer);
2858 X509_free(peer);
2859 peer = NULL;
2860 } else
2861 BIO_puts(io, "no client certificate available\n");
2862 BIO_puts(io, "</BODY></HTML>\r\n\r\n");
2863 break;
2864 } else if ((www == 2 || www == 3)
2865 && (strncmp("GET /", buf, 5) == 0)) {
2866 BIO *file;
2867 char *p, *e;
2868 static const char *text =
2869 "HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n";
2870
2871 /* skip the '/' */
2872 p = &(buf[5]);
2873
2874 dot = 1;
2875 for (e = p; *e != '\0'; e++) {
2876 if (e[0] == ' ')
2877 break;
2878
2879 switch (dot) {
2880 case 1:
2881 dot = (e[0] == '.') ? 2 : 0;
2882 break;
2883 case 2:
2884 dot = (e[0] == '.') ? 3 : 0;
2885 break;
2886 case 3:
2887 dot = (e[0] == '/') ? -1 : 0;
2888 break;
2889 }
2890 if (dot == 0)
2891 dot = (e[0] == '/') ? 1 : 0;
2892 }
2893 dot = (dot == 3) || (dot == -1); /* filename contains ".."
2894 * component */
2895
2896 if (*e == '\0') {
2897 BIO_puts(io, text);
2898 BIO_printf(io, "'%s' is an invalid file name\r\n", p);
2899 break;
2900 }
2901 *e = '\0';
2902
2903 if (dot) {
2904 BIO_puts(io, text);
2905 BIO_printf(io, "'%s' contains '..' reference\r\n", p);
2906 break;
2907 }
2908
2909 if (*p == '/') {
2910 BIO_puts(io, text);
2911 BIO_printf(io, "'%s' is an invalid path\r\n", p);
2912 break;
2913 }
2914
2915 /* if a directory, do the index thang */
2916 if (app_isdir(p) > 0) {
2917 BIO_puts(io, text);
2918 BIO_printf(io, "'%s' is a directory\r\n", p);
2919 break;
2920 }
2921
2922 if ((file = BIO_new_file(p, "r")) == NULL) {
2923 BIO_puts(io, text);
2924 BIO_printf(io, "Error opening '%s'\r\n", p);
2925 ERR_print_errors(io);
2926 break;
2927 }
2928
2929 if (!s_quiet)
2930 BIO_printf(bio_err, "FILE:%s\n", p);
2931
2932 if (www == 2) {
2933 i = strlen(p);
2934 if (((i > 5) && (strcmp(&(p[i - 5]), ".html") == 0)) ||
2935 ((i > 4) && (strcmp(&(p[i - 4]), ".php") == 0)) ||
2936 ((i > 4) && (strcmp(&(p[i - 4]), ".htm") == 0)))
2937 BIO_puts(io,
2938 "HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n");
2939 else
2940 BIO_puts(io,
2941 "HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n");
2942 }
2943 /* send the file */
2944 for (;;) {
2945 i = BIO_read(file, buf, bufsize);
2946 if (i <= 0)
2947 break;
2948
2949 #ifdef RENEG
2950 total_bytes += i;
2951 BIO_printf(bio_err, "%d\n", i);
2952 if (total_bytes > 3 * 1024) {
2953 total_bytes = 0;
2954 BIO_printf(bio_err, "RENEGOTIATE\n");
2955 SSL_renegotiate(con);
2956 }
2957 #endif
2958
2959 for (j = 0; j < i;) {
2960 #ifdef RENEG
2961 static count = 0;
2962 if (++count == 13) {
2963 SSL_renegotiate(con);
2964 }
2965 #endif
2966 k = BIO_write(io, &(buf[j]), i - j);
2967 if (k <= 0) {
2968 if (!BIO_should_retry(io)
2969 && !SSL_waiting_for_async(con))
2970 goto write_error;
2971 else {
2972 BIO_printf(bio_s_out, "rwrite W BLOCK\n");
2973 }
2974 } else {
2975 j += k;
2976 }
2977 }
2978 }
2979 write_error:
2980 BIO_free(file);
2981 break;
2982 }
2983 }
2984
2985 for (;;) {
2986 i = (int)BIO_flush(io);
2987 if (i <= 0) {
2988 if (!BIO_should_retry(io))
2989 break;
2990 } else
2991 break;
2992 }
2993 end:
2994 /* make sure we re-use sessions */
2995 SSL_set_shutdown(con, SSL_SENT_SHUTDOWN | SSL_RECEIVED_SHUTDOWN);
2996
2997 err:
2998 if (ret >= 0)
2999 BIO_printf(bio_s_out, "ACCEPT\n");
3000 OPENSSL_free(buf);
3001 BIO_free_all(io);
3002 return (ret);
3003 }
3004
3005 static int rev_body(int s, int stype, unsigned char *context)
3006 {
3007 char *buf = NULL;
3008 int i;
3009 int ret = 1;
3010 SSL *con;
3011 BIO *io, *ssl_bio, *sbio;
3012
3013 buf = app_malloc(bufsize, "server rev buffer");
3014 io = BIO_new(BIO_f_buffer());
3015 ssl_bio = BIO_new(BIO_f_ssl());
3016 if ((io == NULL) || (ssl_bio == NULL))
3017 goto err;
3018
3019 /* lets make the output buffer a reasonable size */
3020 if (!BIO_set_write_buffer_size(io, bufsize))
3021 goto err;
3022
3023 if ((con = SSL_new(ctx)) == NULL)
3024 goto err;
3025
3026 if (s_tlsextdebug) {
3027 SSL_set_tlsext_debug_callback(con, tlsext_cb);
3028 SSL_set_tlsext_debug_arg(con, bio_s_out);
3029 }
3030 if (context
3031 && !SSL_set_session_id_context(con, context,
3032 strlen((char *)context))) {
3033 ERR_print_errors(bio_err);
3034 goto err;
3035 }
3036
3037 sbio = BIO_new_socket(s, BIO_NOCLOSE);
3038 SSL_set_bio(con, sbio, sbio);
3039 SSL_set_accept_state(con);
3040
3041 BIO_set_ssl(ssl_bio, con, BIO_CLOSE);
3042 BIO_push(io, ssl_bio);
3043 #ifdef CHARSET_EBCDIC
3044 io = BIO_push(BIO_new(BIO_f_ebcdic_filter()), io);
3045 #endif
3046
3047 if (s_debug) {
3048 BIO_set_callback(SSL_get_rbio(con), bio_dump_callback);
3049 BIO_set_callback_arg(SSL_get_rbio(con), (char *)bio_s_out);
3050 }
3051 if (s_msg) {
3052 #ifndef OPENSSL_NO_SSL_TRACE
3053 if (s_msg == 2)
3054 SSL_set_msg_callback(con, SSL_trace);
3055 else
3056 #endif
3057 SSL_set_msg_callback(con, msg_cb);
3058 SSL_set_msg_callback_arg(con, bio_s_msg ? bio_s_msg : bio_s_out);
3059 }
3060
3061 for (;;) {
3062 i = BIO_do_handshake(io);
3063 if (i > 0)
3064 break;
3065 if (!BIO_should_retry(io)) {
3066 BIO_puts(bio_err, "CONNECTION FAILURE\n");
3067 ERR_print_errors(bio_err);
3068 goto end;
3069 }
3070 #ifndef OPENSSL_NO_SRP
3071 if (BIO_should_io_special(io)
3072 && BIO_get_retry_reason(io) == BIO_RR_SSL_X509_LOOKUP) {
3073 BIO_printf(bio_s_out, "LOOKUP renego during accept\n");
3074 SRP_user_pwd_free(srp_callback_parm.user);
3075 srp_callback_parm.user =
3076 SRP_VBASE_get1_by_user(srp_callback_parm.vb,
3077 srp_callback_parm.login);
3078 if (srp_callback_parm.user)
3079 BIO_printf(bio_s_out, "LOOKUP done %s\n",
3080 srp_callback_parm.user->info);
3081 else
3082 BIO_printf(bio_s_out, "LOOKUP not successful\n");
3083 continue;
3084 }
3085 #endif
3086 }
3087 BIO_printf(bio_err, "CONNECTION ESTABLISHED\n");
3088 print_ssl_summary(con);
3089
3090 for (;;) {
3091 i = BIO_gets(io, buf, bufsize - 1);
3092 if (i < 0) { /* error */
3093 if (!BIO_should_retry(io)) {
3094 if (!s_quiet)
3095 ERR_print_errors(bio_err);
3096 goto err;
3097 } else {
3098 BIO_printf(bio_s_out, "read R BLOCK\n");
3099 #ifndef OPENSSL_NO_SRP
3100 if (BIO_should_io_special(io)
3101 && BIO_get_retry_reason(io) == BIO_RR_SSL_X509_LOOKUP) {
3102 BIO_printf(bio_s_out, "LOOKUP renego during read\n");
3103 SRP_user_pwd_free(srp_callback_parm.user);
3104 srp_callback_parm.user =
3105 SRP_VBASE_get1_by_user(srp_callback_parm.vb,
3106 srp_callback_parm.login);
3107 if (srp_callback_parm.user)
3108 BIO_printf(bio_s_out, "LOOKUP done %s\n",
3109 srp_callback_parm.user->info);
3110 else
3111 BIO_printf(bio_s_out, "LOOKUP not successful\n");
3112 continue;
3113 }
3114 #endif
3115 #if !defined(OPENSSL_SYS_MSDOS)
3116 sleep(1);
3117 #endif
3118 continue;
3119 }
3120 } else if (i == 0) { /* end of input */
3121 ret = 1;
3122 BIO_printf(bio_err, "CONNECTION CLOSED\n");
3123 goto end;
3124 } else {
3125 char *p = buf + i - 1;
3126 while (i && (*p == '\n' || *p == '\r')) {
3127 p--;
3128 i--;
3129 }
3130 if (!s_ign_eof && (i == 5) && (strncmp(buf, "CLOSE", 5) == 0)) {
3131 ret = 1;
3132 BIO_printf(bio_err, "CONNECTION CLOSED\n");
3133 goto end;
3134 }
3135 BUF_reverse((unsigned char *)buf, NULL, i);
3136 buf[i] = '\n';
3137 BIO_write(io, buf, i + 1);
3138 for (;;) {
3139 i = BIO_flush(io);
3140 if (i > 0)
3141 break;
3142 if (!BIO_should_retry(io))
3143 goto end;
3144 }
3145 }
3146 }
3147 end:
3148 /* make sure we re-use sessions */
3149 SSL_set_shutdown(con, SSL_SENT_SHUTDOWN | SSL_RECEIVED_SHUTDOWN);
3150
3151 err:
3152
3153 OPENSSL_free(buf);
3154 BIO_free_all(io);
3155 return (ret);
3156 }
3157
3158 #define MAX_SESSION_ID_ATTEMPTS 10
3159 static int generate_session_id(const SSL *ssl, unsigned char *id,
3160 unsigned int *id_len)
3161 {
3162 unsigned int count = 0;
3163 do {
3164 if (RAND_bytes(id, *id_len) <= 0)
3165 return 0;
3166 /*
3167 * Prefix the session_id with the required prefix. NB: If our prefix
3168 * is too long, clip it - but there will be worse effects anyway, eg.
3169 * the server could only possibly create 1 session ID (ie. the
3170 * prefix!) so all future session negotiations will fail due to
3171 * conflicts.
3172 */
3173 memcpy(id, session_id_prefix,
3174 (strlen(session_id_prefix) < *id_len) ?
3175 strlen(session_id_prefix) : *id_len);
3176 }
3177 while (SSL_has_matching_session_id(ssl, id, *id_len) &&
3178 (++count < MAX_SESSION_ID_ATTEMPTS));
3179 if (count >= MAX_SESSION_ID_ATTEMPTS)
3180 return 0;
3181 return 1;
3182 }
3183
3184 /*
3185 * By default s_server uses an in-memory cache which caches SSL_SESSION
3186 * structures without any serialisation. This hides some bugs which only
3187 * become apparent in deployed servers. By implementing a basic external
3188 * session cache some issues can be debugged using s_server.
3189 */
3190
3191 typedef struct simple_ssl_session_st {
3192 unsigned char *id;
3193 unsigned int idlen;
3194 unsigned char *der;
3195 int derlen;
3196 struct simple_ssl_session_st *next;
3197 } simple_ssl_session;
3198
3199 static simple_ssl_session *first = NULL;
3200
3201 static int add_session(SSL *ssl, SSL_SESSION *session)
3202 {
3203 simple_ssl_session *sess = app_malloc(sizeof(*sess), "get session");
3204 unsigned char *p;
3205
3206 SSL_SESSION_get_id(session, &sess->idlen);
3207 sess->derlen = i2d_SSL_SESSION(session, NULL);
3208 if (sess->derlen < 0) {
3209 BIO_printf(bio_err, "Error encoding session\n");
3210 OPENSSL_free(sess);
3211 return 0;
3212 }
3213
3214 sess->id = OPENSSL_memdup(SSL_SESSION_get_id(session, NULL), sess->idlen);
3215 sess->der = app_malloc(sess->derlen, "get session buffer");
3216 if (!sess->id) {
3217 BIO_printf(bio_err, "Out of memory adding to external cache\n");
3218 OPENSSL_free(sess->id);
3219 OPENSSL_free(sess->der);
3220 OPENSSL_free(sess);
3221 return 0;
3222 }
3223 p = sess->der;
3224
3225 /* Assume it still works. */
3226 if (i2d_SSL_SESSION(session, &p) != sess->derlen) {
3227 BIO_printf(bio_err, "Unexpected session encoding length\n");
3228 OPENSSL_free(sess->id);
3229 OPENSSL_free(sess->der);
3230 OPENSSL_free(sess);
3231 return 0;
3232 }
3233
3234 sess->next = first;
3235 first = sess;
3236 BIO_printf(bio_err, "New session added to external cache\n");
3237 return 0;
3238 }
3239
3240 static SSL_SESSION *get_session(SSL *ssl, const unsigned char *id, int idlen,
3241 int *do_copy)
3242 {
3243 simple_ssl_session *sess;
3244 *do_copy = 0;
3245 for (sess = first; sess; sess = sess->next) {
3246 if (idlen == (int)sess->idlen && !memcmp(sess->id, id, idlen)) {
3247 const unsigned char *p = sess->der;
3248 BIO_printf(bio_err, "Lookup session: cache hit\n");
3249 return d2i_SSL_SESSION(NULL, &p, sess->derlen);
3250 }
3251 }
3252 BIO_printf(bio_err, "Lookup session: cache miss\n");
3253 return NULL;
3254 }
3255
3256 static void del_session(SSL_CTX *sctx, SSL_SESSION *session)
3257 {
3258 simple_ssl_session *sess, *prev = NULL;
3259 const unsigned char *id;
3260 unsigned int idlen;
3261 id = SSL_SESSION_get_id(session, &idlen);
3262 for (sess = first; sess; sess = sess->next) {
3263 if (idlen == sess->idlen && !memcmp(sess->id, id, idlen)) {
3264 if (prev)
3265 prev->next = sess->next;
3266 else
3267 first = sess->next;
3268 OPENSSL_free(sess->id);
3269 OPENSSL_free(sess->der);
3270 OPENSSL_free(sess);
3271 return;
3272 }
3273 prev = sess;
3274 }
3275 }
3276
3277 static void init_session_cache_ctx(SSL_CTX *sctx)
3278 {
3279 SSL_CTX_set_session_cache_mode(sctx,
3280 SSL_SESS_CACHE_NO_INTERNAL |
3281 SSL_SESS_CACHE_SERVER);
3282 SSL_CTX_sess_set_new_cb(sctx, add_session);
3283 SSL_CTX_sess_set_get_cb(sctx, get_session);
3284 SSL_CTX_sess_set_remove_cb(sctx, del_session);
3285 }
3286
3287 static void free_sessions(void)
3288 {
3289 simple_ssl_session *sess, *tsess;
3290 for (sess = first; sess;) {
3291 OPENSSL_free(sess->id);
3292 OPENSSL_free(sess->der);
3293 tsess = sess;
3294 sess = sess->next;
3295 OPENSSL_free(tsess);
3296 }
3297 first = NULL;
3298 }
3299
3300 #endif /* OPENSSL_NO_SOCK */
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