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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 int timeout;
455 /* File to load OCSP Response from (or NULL if no file) */
456 char *respin;
457 /* Default responder to use */
458 char *host, *path, *port;
459 int use_ssl;
460 int verbose;
461 } tlsextstatusctx;
462
463 static tlsextstatusctx tlscstatp = { -1 };
464
465 #ifndef OPENSSL_NO_OCSP
466
467 /*
468 * Helper function to get an OCSP_RESPONSE from a responder. This is a
469 * simplified version. It examines certificates each time and makes one OCSP
470 * responder query for each request. A full version would store details such as
471 * the OCSP certificate IDs and minimise the number of OCSP responses by caching
472 * them until they were considered "expired".
473 */
474 static int get_ocsp_resp_from_responder(SSL *s, tlsextstatusctx *srctx,
475 OCSP_RESPONSE **resp)
476 {
477 char *host = NULL, *port = NULL, *path = NULL;
478 int use_ssl;
479 STACK_OF(OPENSSL_STRING) *aia = NULL;
480 X509 *x = NULL;
481 X509_STORE_CTX *inctx = NULL;
482 X509_OBJECT *obj;
483 OCSP_REQUEST *req = NULL;
484 OCSP_CERTID *id = NULL;
485 STACK_OF(X509_EXTENSION) *exts;
486 int ret = SSL_TLSEXT_ERR_NOACK;
487 int i;
488
489 /* Build up OCSP query from server certificate */
490 x = SSL_get_certificate(s);
491 aia = X509_get1_ocsp(x);
492 if (aia) {
493 if (!OCSP_parse_url(sk_OPENSSL_STRING_value(aia, 0),
494 &host, &port, &path, &use_ssl)) {
495 BIO_puts(bio_err, "cert_status: can't parse AIA URL\n");
496 goto err;
497 }
498 if (srctx->verbose)
499 BIO_printf(bio_err, "cert_status: AIA URL: %s\n",
500 sk_OPENSSL_STRING_value(aia, 0));
501 } else {
502 if (!srctx->host) {
503 BIO_puts(bio_err,
504 "cert_status: no AIA and no default responder URL\n");
505 goto done;
506 }
507 host = srctx->host;
508 path = srctx->path;
509 port = srctx->port;
510 use_ssl = srctx->use_ssl;
511 }
512
513 inctx = X509_STORE_CTX_new();
514 if (inctx == NULL)
515 goto err;
516 if (!X509_STORE_CTX_init(inctx,
517 SSL_CTX_get_cert_store(SSL_get_SSL_CTX(s)),
518 NULL, NULL))
519 goto err;
520 obj = X509_STORE_CTX_get_obj_by_subject(inctx, X509_LU_X509,
521 X509_get_issuer_name(x));
522 if (obj == NULL) {
523 BIO_puts(bio_err, "cert_status: Can't retrieve issuer certificate.\n");
524 goto done;
525 }
526 id = OCSP_cert_to_id(NULL, x, X509_OBJECT_get0_X509(obj));
527 X509_OBJECT_free(obj);
528 if (!id)
529 goto err;
530 req = OCSP_REQUEST_new();
531 if (req == NULL)
532 goto err;
533 if (!OCSP_request_add0_id(req, id))
534 goto err;
535 id = NULL;
536 /* Add any extensions to the request */
537 SSL_get_tlsext_status_exts(s, &exts);
538 for (i = 0; i < sk_X509_EXTENSION_num(exts); i++) {
539 X509_EXTENSION *ext = sk_X509_EXTENSION_value(exts, i);
540 if (!OCSP_REQUEST_add_ext(req, ext, -1))
541 goto err;
542 }
543 *resp = process_responder(req, host, path, port, use_ssl, NULL,
544 srctx->timeout);
545 if (*resp == NULL) {
546 BIO_puts(bio_err, "cert_status: error querying responder\n");
547 goto done;
548 }
549
550 ret = SSL_TLSEXT_ERR_OK;
551 goto done;
552
553 err:
554 ret = SSL_TLSEXT_ERR_ALERT_FATAL;
555 done:
556 /*
557 * If we parsed aia we need to free; otherwise they were copied and we
558 * don't
559 */
560 if (aia != NULL) {
561 OPENSSL_free(host);
562 OPENSSL_free(path);
563 OPENSSL_free(port);
564 X509_email_free(aia);
565 }
566 OCSP_CERTID_free(id);
567 OCSP_REQUEST_free(req);
568 X509_STORE_CTX_free(inctx);
569 return ret;
570 }
571
572 /*
573 * Certificate Status callback. This is called when a client includes a
574 * certificate status request extension. The response is either obtained from a
575 * file, or from an OCSP responder.
576 */
577 static int cert_status_cb(SSL *s, void *arg)
578 {
579 tlsextstatusctx *srctx = arg;
580 OCSP_RESPONSE *resp = NULL;
581 unsigned char *rspder = NULL;
582 int rspderlen;
583 int ret = SSL_TLSEXT_ERR_ALERT_FATAL;
584
585 if (srctx->verbose)
586 BIO_puts(bio_err, "cert_status: callback called\n");
587
588 if (srctx->respin != NULL) {
589 BIO *derbio = bio_open_default(srctx->respin, 'r', FORMAT_ASN1);
590 if (derbio == NULL) {
591 BIO_puts(bio_err, "cert_status: Cannot open OCSP response file\n");
592 goto err;
593 }
594 resp = d2i_OCSP_RESPONSE_bio(derbio, NULL);
595 BIO_free(derbio);
596 if (resp == NULL) {
597 BIO_puts(bio_err, "cert_status: Error reading OCSP response\n");
598 goto err;
599 }
600 } else {
601 ret = get_ocsp_resp_from_responder(s, srctx, &resp);
602 if (ret != SSL_TLSEXT_ERR_OK)
603 goto err;
604 }
605
606 rspderlen = i2d_OCSP_RESPONSE(resp, &rspder);
607 if (rspderlen <= 0)
608 goto err;
609
610 SSL_set_tlsext_status_ocsp_resp(s, rspder, rspderlen);
611 if (srctx->verbose) {
612 BIO_puts(bio_err, "cert_status: ocsp response sent:\n");
613 OCSP_RESPONSE_print(bio_err, resp, 2);
614 }
615
616 ret = SSL_TLSEXT_ERR_OK;
617
618 err:
619 if (ret != SSL_TLSEXT_ERR_OK)
620 ERR_print_errors(bio_err);
621
622 OCSP_RESPONSE_free(resp);
623
624 return ret;
625 }
626 #endif
627
628 #ifndef OPENSSL_NO_NEXTPROTONEG
629 /* This is the context that we pass to next_proto_cb */
630 typedef struct tlsextnextprotoctx_st {
631 unsigned char *data;
632 unsigned int len;
633 } tlsextnextprotoctx;
634
635 static int next_proto_cb(SSL *s, const unsigned char **data,
636 unsigned int *len, void *arg)
637 {
638 tlsextnextprotoctx *next_proto = arg;
639
640 *data = next_proto->data;
641 *len = next_proto->len;
642
643 return SSL_TLSEXT_ERR_OK;
644 }
645 #endif /* ndef OPENSSL_NO_NEXTPROTONEG */
646
647 /* This the context that we pass to alpn_cb */
648 typedef struct tlsextalpnctx_st {
649 unsigned char *data;
650 size_t len;
651 } tlsextalpnctx;
652
653 static int alpn_cb(SSL *s, const unsigned char **out, unsigned char *outlen,
654 const unsigned char *in, unsigned int inlen, void *arg)
655 {
656 tlsextalpnctx *alpn_ctx = arg;
657
658 if (!s_quiet) {
659 /* We can assume that |in| is syntactically valid. */
660 unsigned int i;
661 BIO_printf(bio_s_out, "ALPN protocols advertised by the client: ");
662 for (i = 0; i < inlen;) {
663 if (i)
664 BIO_write(bio_s_out, ", ", 2);
665 BIO_write(bio_s_out, &in[i + 1], in[i]);
666 i += in[i] + 1;
667 }
668 BIO_write(bio_s_out, "\n", 1);
669 }
670
671 if (SSL_select_next_proto
672 ((unsigned char **)out, outlen, alpn_ctx->data, alpn_ctx->len, in,
673 inlen) != OPENSSL_NPN_NEGOTIATED) {
674 return SSL_TLSEXT_ERR_NOACK;
675 }
676
677 if (!s_quiet) {
678 BIO_printf(bio_s_out, "ALPN protocols selected: ");
679 BIO_write(bio_s_out, *out, *outlen);
680 BIO_write(bio_s_out, "\n", 1);
681 }
682
683 return SSL_TLSEXT_ERR_OK;
684 }
685
686 static int not_resumable_sess_cb(SSL *s, int is_forward_secure)
687 {
688 /* disable resumption for sessions with forward secure ciphers */
689 return is_forward_secure;
690 }
691
692 #ifndef OPENSSL_NO_SRP
693 static srpsrvparm srp_callback_parm;
694 #endif
695 #ifndef OPENSSL_NO_SRTP
696 static char *srtp_profiles = NULL;
697 #endif
698
699 typedef enum OPTION_choice {
700 OPT_ERR = -1, OPT_EOF = 0, OPT_HELP, OPT_ENGINE,
701 OPT_4, OPT_6, OPT_ACCEPT, OPT_PORT, OPT_UNIX, OPT_UNLINK, OPT_NACCEPT,
702 OPT_VERIFY, OPT_UPPER_V_VERIFY, OPT_CONTEXT, OPT_CERT, OPT_CRL,
703 OPT_CRL_DOWNLOAD, OPT_SERVERINFO, OPT_CERTFORM, OPT_KEY, OPT_KEYFORM,
704 OPT_PASS, OPT_CERT_CHAIN, OPT_DHPARAM, OPT_DCERTFORM, OPT_DCERT,
705 OPT_DKEYFORM, OPT_DPASS, OPT_DKEY, OPT_DCERT_CHAIN, OPT_NOCERT,
706 OPT_CAPATH, OPT_NOCAPATH, OPT_CHAINCAPATH, OPT_VERIFYCAPATH, OPT_NO_CACHE,
707 OPT_EXT_CACHE, OPT_CRLFORM, OPT_VERIFY_RET_ERROR, OPT_VERIFY_QUIET,
708 OPT_BUILD_CHAIN, OPT_CAFILE, OPT_NOCAFILE, OPT_CHAINCAFILE,
709 OPT_VERIFYCAFILE, OPT_NBIO, OPT_NBIO_TEST, OPT_IGN_EOF, OPT_NO_IGN_EOF,
710 OPT_DEBUG, OPT_TLSEXTDEBUG, OPT_STATUS, OPT_STATUS_VERBOSE,
711 OPT_STATUS_TIMEOUT, OPT_STATUS_URL, OPT_STATUS_FILE, OPT_MSG, OPT_MSGFILE,
712 OPT_TRACE, OPT_SECURITY_DEBUG, OPT_SECURITY_DEBUG_VERBOSE, OPT_STATE,
713 OPT_CRLF, OPT_QUIET, OPT_BRIEF, OPT_NO_DHE,
714 OPT_NO_RESUME_EPHEMERAL, OPT_PSK_HINT, OPT_PSK, OPT_SRPVFILE,
715 OPT_SRPUSERSEED, OPT_REV, OPT_WWW, OPT_UPPER_WWW, OPT_HTTP, OPT_ASYNC,
716 OPT_SSL_CONFIG, OPT_SPLIT_SEND_FRAG, OPT_MAX_PIPELINES, OPT_READ_BUF,
717 OPT_SSL3, OPT_TLS1_3, OPT_TLS1_2, OPT_TLS1_1, OPT_TLS1, OPT_DTLS, OPT_DTLS1,
718 OPT_DTLS1_2, OPT_TIMEOUT, OPT_MTU, OPT_LISTEN,
719 OPT_ID_PREFIX, OPT_RAND, OPT_SERVERNAME, OPT_SERVERNAME_FATAL,
720 OPT_CERT2, OPT_KEY2, OPT_NEXTPROTONEG, OPT_ALPN,
721 OPT_SRTP_PROFILES, OPT_KEYMATEXPORT, OPT_KEYMATEXPORTLEN,
722 OPT_KEYLOG_FILE,
723 OPT_S_ENUM,
724 OPT_V_ENUM,
725 OPT_X_ENUM
726 } OPTION_CHOICE;
727
728 const OPTIONS s_server_options[] = {
729 {"help", OPT_HELP, '-', "Display this summary"},
730 {"port", OPT_PORT, 'p',
731 "TCP/IP port to listen on for connections (default is " PORT ")"},
732 {"accept", OPT_ACCEPT, 's',
733 "TCP/IP optional host and port to listen on for connections (default is *:" PORT ")"},
734 #ifdef AF_UNIX
735 {"unix", OPT_UNIX, 's', "Unix domain socket to accept on"},
736 #endif
737 {"4", OPT_4, '-', "Use IPv4 only"},
738 {"6", OPT_6, '-', "Use IPv6 only"},
739 #ifdef AF_UNIX
740 {"unlink", OPT_UNLINK, '-', "For -unix, unlink existing socket first"},
741 #endif
742 {"context", OPT_CONTEXT, 's', "Set session ID context"},
743 {"verify", OPT_VERIFY, 'n', "Turn on peer certificate verification"},
744 {"Verify", OPT_UPPER_V_VERIFY, 'n',
745 "Turn on peer certificate verification, must have a cert"},
746 {"cert", OPT_CERT, '<', "Certificate file to use; default is " TEST_CERT},
747 {"naccept", OPT_NACCEPT, 'p', "Terminate after #num connections"},
748 {"serverinfo", OPT_SERVERINFO, 's',
749 "PEM serverinfo file for certificate"},
750 {"certform", OPT_CERTFORM, 'F',
751 "Certificate format (PEM or DER) PEM default"},
752 {"key", OPT_KEY, '<',
753 "Private Key if not in -cert; default is " TEST_CERT},
754 {"keyform", OPT_KEYFORM, 'f',
755 "Key format (PEM, DER or ENGINE) PEM default"},
756 {"pass", OPT_PASS, 's', "Private key file pass phrase source"},
757 {"dcert", OPT_DCERT, '<',
758 "Second certificate file to use (usually for DSA)"},
759 {"dcertform", OPT_DCERTFORM, 'F',
760 "Second certificate format (PEM or DER) PEM default"},
761 {"dkey", OPT_DKEY, '<',
762 "Second private key file to use (usually for DSA)"},
763 {"dkeyform", OPT_DKEYFORM, 'F',
764 "Second key format (PEM, DER or ENGINE) PEM default"},
765 {"dpass", OPT_DPASS, 's', "Second private key file pass phrase source"},
766 {"nbio_test", OPT_NBIO_TEST, '-', "Test with the non-blocking test bio"},
767 {"crlf", OPT_CRLF, '-', "Convert LF from terminal into CRLF"},
768 {"debug", OPT_DEBUG, '-', "Print more output"},
769 {"msg", OPT_MSG, '-', "Show protocol messages"},
770 {"msgfile", OPT_MSGFILE, '>',
771 "File to send output of -msg or -trace, instead of stdout"},
772 {"state", OPT_STATE, '-', "Print the SSL states"},
773 {"CAfile", OPT_CAFILE, '<', "PEM format file of CA's"},
774 {"CApath", OPT_CAPATH, '/', "PEM format directory of CA's"},
775 {"no-CAfile", OPT_NOCAFILE, '-',
776 "Do not load the default certificates file"},
777 {"no-CApath", OPT_NOCAPATH, '-',
778 "Do not load certificates from the default certificates directory"},
779 {"nocert", OPT_NOCERT, '-', "Don't use any certificates (Anon-DH)"},
780 {"quiet", OPT_QUIET, '-', "No server output"},
781 {"no_resume_ephemeral", OPT_NO_RESUME_EPHEMERAL, '-',
782 "Disable caching and tickets if ephemeral (EC)DH is used"},
783 {"www", OPT_WWW, '-', "Respond to a 'GET /' with a status page"},
784 {"WWW", OPT_UPPER_WWW, '-', "Respond to a 'GET with the file ./path"},
785 {"servername", OPT_SERVERNAME, 's',
786 "Servername for HostName TLS extension"},
787 {"servername_fatal", OPT_SERVERNAME_FATAL, '-',
788 "mismatch send fatal alert (default warning alert)"},
789 {"cert2", OPT_CERT2, '<',
790 "Certificate file to use for servername; default is" TEST_CERT2},
791 {"key2", OPT_KEY2, '<',
792 "-Private Key file to use for servername if not in -cert2"},
793 {"tlsextdebug", OPT_TLSEXTDEBUG, '-',
794 "Hex dump of all TLS extensions received"},
795 {"HTTP", OPT_HTTP, '-', "Like -WWW but ./path includes HTTP headers"},
796 {"id_prefix", OPT_ID_PREFIX, 's',
797 "Generate SSL/TLS session IDs prefixed by arg"},
798 {"rand", OPT_RAND, 's',
799 "Load the file(s) into the random number generator"},
800 {"keymatexport", OPT_KEYMATEXPORT, 's',
801 "Export keying material using label"},
802 {"keymatexportlen", OPT_KEYMATEXPORTLEN, 'p',
803 "Export len bytes of keying material (default 20)"},
804 {"CRL", OPT_CRL, '<', "CRL file to use"},
805 {"crl_download", OPT_CRL_DOWNLOAD, '-',
806 "Download CRL from distribution points"},
807 {"cert_chain", OPT_CERT_CHAIN, '<',
808 "certificate chain file in PEM format"},
809 {"dcert_chain", OPT_DCERT_CHAIN, '<',
810 "second certificate chain file in PEM format"},
811 {"chainCApath", OPT_CHAINCAPATH, '/',
812 "use dir as certificate store path to build CA certificate chain"},
813 {"verifyCApath", OPT_VERIFYCAPATH, '/',
814 "use dir as certificate store path to verify CA certificate"},
815 {"no_cache", OPT_NO_CACHE, '-', "Disable session cache"},
816 {"ext_cache", OPT_EXT_CACHE, '-',
817 "Disable internal cache, setup and use external cache"},
818 {"CRLform", OPT_CRLFORM, 'F', "CRL format (PEM or DER) PEM is default"},
819 {"verify_return_error", OPT_VERIFY_RET_ERROR, '-',
820 "Close connection on verification error"},
821 {"verify_quiet", OPT_VERIFY_QUIET, '-',
822 "No verify output except verify errors"},
823 {"build_chain", OPT_BUILD_CHAIN, '-', "Build certificate chain"},
824 {"chainCAfile", OPT_CHAINCAFILE, '<',
825 "CA file for certificate chain (PEM format)"},
826 {"verifyCAfile", OPT_VERIFYCAFILE, '<',
827 "CA file for certificate verification (PEM format)"},
828 {"ign_eof", OPT_IGN_EOF, '-', "ignore input eof (default when -quiet)"},
829 {"no_ign_eof", OPT_NO_IGN_EOF, '-', "Do not ignore input eof"},
830 #ifndef OPENSSL_NO_OCSP
831 {"status", OPT_STATUS, '-', "Request certificate status from server"},
832 {"status_verbose", OPT_STATUS_VERBOSE, '-',
833 "Print more output in certificate status callback"},
834 {"status_timeout", OPT_STATUS_TIMEOUT, 'n',
835 "Status request responder timeout"},
836 {"status_url", OPT_STATUS_URL, 's', "Status request fallback URL"},
837 {"status_file", OPT_STATUS_FILE, '<',
838 "File containing DER encoded OCSP Response"},
839 #endif
840 #ifndef OPENSSL_NO_SSL_TRACE
841 {"trace", OPT_TRACE, '-', "trace protocol messages"},
842 #endif
843 {"security_debug", OPT_SECURITY_DEBUG, '-',
844 "Print output from SSL/TLS security framework"},
845 {"security_debug_verbose", OPT_SECURITY_DEBUG_VERBOSE, '-',
846 "Print more output from SSL/TLS security framework"},
847 {"brief", OPT_BRIEF, '-',
848 "Restrict output to brief summary of connection parameters"},
849 {"rev", OPT_REV, '-',
850 "act as a simple test server which just sends back with the received text reversed"},
851 {"async", OPT_ASYNC, '-', "Operate in asynchronous mode"},
852 {"ssl_config", OPT_SSL_CONFIG, 's',
853 "Configure SSL_CTX using the configuration 'val'"},
854 {"split_send_frag", OPT_SPLIT_SEND_FRAG, 'n',
855 "Size used to split data for encrypt pipelines"},
856 {"max_pipelines", OPT_MAX_PIPELINES, 'n',
857 "Maximum number of encrypt/decrypt pipelines to be used"},
858 {"read_buf", OPT_READ_BUF, 'n',
859 "Default read buffer size to be used for connections"},
860 OPT_S_OPTIONS,
861 OPT_V_OPTIONS,
862 OPT_X_OPTIONS,
863 {"nbio", OPT_NBIO, '-', "Use non-blocking IO"},
864 #ifndef OPENSSL_NO_PSK
865 {"psk_hint", OPT_PSK_HINT, 's', "PSK identity hint to use"},
866 {"psk", OPT_PSK, 's', "PSK in hex (without 0x)"},
867 #endif
868 #ifndef OPENSSL_NO_SRP
869 {"srpvfile", OPT_SRPVFILE, '<', "The verifier file for SRP"},
870 {"srpuserseed", OPT_SRPUSERSEED, 's',
871 "A seed string for a default user salt"},
872 #endif
873 #ifndef OPENSSL_NO_SSL3
874 {"ssl3", OPT_SSL3, '-', "Just talk SSLv3"},
875 #endif
876 #ifndef OPENSSL_NO_TLS1
877 {"tls1", OPT_TLS1, '-', "Just talk TLSv1"},
878 #endif
879 #ifndef OPENSSL_NO_TLS1_1
880 {"tls1_1", OPT_TLS1_1, '-', "Just talk TLSv1.1"},
881 #endif
882 #ifndef OPENSSL_NO_TLS1_2
883 {"tls1_2", OPT_TLS1_2, '-', "just talk TLSv1.2"},
884 #endif
885 #ifndef OPENSSL_NO_TLS1_3
886 {"tls1_3", OPT_TLS1_3, '-', "just talk TLSv1.3"},
887 #endif
888 #ifndef OPENSSL_NO_DTLS
889 {"dtls", OPT_DTLS, '-', "Use any DTLS version"},
890 {"timeout", OPT_TIMEOUT, '-', "Enable timeouts"},
891 {"mtu", OPT_MTU, 'p', "Set link layer MTU"},
892 {"listen", OPT_LISTEN, '-',
893 "Listen for a DTLS ClientHello with a cookie and then connect"},
894 #endif
895 #ifndef OPENSSL_NO_DTLS1
896 {"dtls1", OPT_DTLS1, '-', "Just talk DTLSv1"},
897 #endif
898 #ifndef OPENSSL_NO_DTLS1_2
899 {"dtls1_2", OPT_DTLS1_2, '-', "Just talk DTLSv1.2"},
900 #endif
901 #ifndef OPENSSL_NO_DH
902 {"no_dhe", OPT_NO_DHE, '-', "Disable ephemeral DH"},
903 #endif
904 #ifndef OPENSSL_NO_NEXTPROTONEG
905 {"nextprotoneg", OPT_NEXTPROTONEG, 's',
906 "Set the advertised protocols for the NPN extension (comma-separated list)"},
907 #endif
908 #ifndef OPENSSL_NO_SRTP
909 {"use_srtp", OPT_SRTP_PROFILES, 's',
910 "Offer SRTP key management with a colon-separated profile list"},
911 #endif
912 {"alpn", OPT_ALPN, 's',
913 "Set the advertised protocols for the ALPN extension (comma-separated list)"},
914 #ifndef OPENSSL_NO_ENGINE
915 {"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"},
916 #endif
917 {"keylogfile", OPT_KEYLOG_FILE, '>', "Write TLS secrets to file"},
918 {NULL, OPT_EOF, 0, NULL}
919 };
920
921 #define IS_PROT_FLAG(o) \
922 (o == OPT_SSL3 || o == OPT_TLS1 || o == OPT_TLS1_1 || o == OPT_TLS1_2 \
923 || o == OPT_TLS1_3 || o == OPT_DTLS || o == OPT_DTLS1 || o == OPT_DTLS1_2)
924
925 int s_server_main(int argc, char *argv[])
926 {
927 ENGINE *engine = NULL;
928 EVP_PKEY *s_key = NULL, *s_dkey = NULL;
929 SSL_CONF_CTX *cctx = NULL;
930 const SSL_METHOD *meth = TLS_server_method();
931 SSL_EXCERT *exc = NULL;
932 STACK_OF(OPENSSL_STRING) *ssl_args = NULL;
933 STACK_OF(X509) *s_chain = NULL, *s_dchain = NULL;
934 STACK_OF(X509_CRL) *crls = NULL;
935 X509 *s_cert = NULL, *s_dcert = NULL;
936 X509_VERIFY_PARAM *vpm = NULL;
937 const char *CApath = NULL, *CAfile = NULL, *chCApath = NULL, *chCAfile = NULL;
938 char *dpassarg = NULL, *dpass = NULL, *inrand = NULL;
939 char *passarg = NULL, *pass = NULL, *vfyCApath = NULL, *vfyCAfile = NULL;
940 char *crl_file = NULL, *prog;
941 #ifdef AF_UNIX
942 int unlink_unix_path = 0;
943 #endif
944 do_server_cb server_cb;
945 int vpmtouched = 0, build_chain = 0, no_cache = 0, ext_cache = 0;
946 #ifndef OPENSSL_NO_DH
947 char *dhfile = NULL;
948 int no_dhe = 0;
949 #endif
950 int nocert = 0, ret = 1;
951 int noCApath = 0, noCAfile = 0;
952 int s_cert_format = FORMAT_PEM, s_key_format = FORMAT_PEM;
953 int s_dcert_format = FORMAT_PEM, s_dkey_format = FORMAT_PEM;
954 int rev = 0, naccept = -1, sdebug = 0;
955 int socket_family = AF_UNSPEC, socket_type = SOCK_STREAM;
956 int state = 0, crl_format = FORMAT_PEM, crl_download = 0;
957 char *host = NULL;
958 char *port = BUF_strdup(PORT);
959 unsigned char *context = NULL;
960 OPTION_CHOICE o;
961 EVP_PKEY *s_key2 = NULL;
962 X509 *s_cert2 = NULL;
963 tlsextctx tlsextcbp = { NULL, NULL, SSL_TLSEXT_ERR_ALERT_WARNING };
964 const char *ssl_config = NULL;
965 int read_buf_len = 0;
966 #ifndef OPENSSL_NO_NEXTPROTONEG
967 const char *next_proto_neg_in = NULL;
968 tlsextnextprotoctx next_proto = { NULL, 0 };
969 #endif
970 const char *alpn_in = NULL;
971 tlsextalpnctx alpn_ctx = { NULL, 0 };
972 #ifndef OPENSSL_NO_PSK
973 /* by default do not send a PSK identity hint */
974 static char *psk_identity_hint = NULL;
975 char *p;
976 #endif
977 #ifndef OPENSSL_NO_SRP
978 char *srpuserseed = NULL;
979 char *srp_verifier_file = NULL;
980 #endif
981 int min_version = 0, max_version = 0, prot_opt = 0, no_prot_opt = 0;
982 int s_server_verify = SSL_VERIFY_NONE;
983 int s_server_session_id_context = 1; /* anything will do */
984 const char *s_cert_file = TEST_CERT, *s_key_file = NULL, *s_chain_file = NULL;
985 const char *s_cert_file2 = TEST_CERT2, *s_key_file2 = NULL;
986 char *s_dcert_file = NULL, *s_dkey_file = NULL, *s_dchain_file = NULL;
987 #ifndef OPENSSL_NO_OCSP
988 int s_tlsextstatus = 0;
989 #endif
990 int no_resume_ephemeral = 0;
991 unsigned int split_send_fragment = 0, max_pipelines = 0;
992 const char *s_serverinfo_file = NULL;
993 const char *keylog_file = NULL;
994
995 /* Init of few remaining global variables */
996 local_argc = argc;
997 local_argv = argv;
998
999 ctx = ctx2 = NULL;
1000 s_nbio = s_nbio_test = 0;
1001 www = 0;
1002 bio_s_out = NULL;
1003 s_debug = 0;
1004 s_msg = 0;
1005 s_quiet = 0;
1006 s_brief = 0;
1007 async = 0;
1008
1009 cctx = SSL_CONF_CTX_new();
1010 vpm = X509_VERIFY_PARAM_new();
1011 if (cctx == NULL || vpm == NULL)
1012 goto end;
1013 SSL_CONF_CTX_set_flags(cctx,
1014 SSL_CONF_FLAG_SERVER | SSL_CONF_FLAG_CMDLINE);
1015
1016 prog = opt_init(argc, argv, s_server_options);
1017 while ((o = opt_next()) != OPT_EOF) {
1018 if (IS_PROT_FLAG(o) && ++prot_opt > 1) {
1019 BIO_printf(bio_err, "Cannot supply multiple protocol flags\n");
1020 goto end;
1021 }
1022 if (IS_NO_PROT_FLAG(o))
1023 no_prot_opt++;
1024 if (prot_opt == 1 && no_prot_opt) {
1025 BIO_printf(bio_err,
1026 "Cannot supply both a protocol flag and '-no_<prot>'\n");
1027 goto end;
1028 }
1029 switch (o) {
1030 case OPT_EOF:
1031 case OPT_ERR:
1032 opthelp:
1033 BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
1034 goto end;
1035 case OPT_HELP:
1036 opt_help(s_server_options);
1037 ret = 0;
1038 goto end;
1039
1040 case OPT_4:
1041 #ifdef AF_UNIX
1042 if (socket_family == AF_UNIX) {
1043 OPENSSL_free(host); host = NULL;
1044 OPENSSL_free(port); port = NULL;
1045 }
1046 #endif
1047 socket_family = AF_INET;
1048 break;
1049 case OPT_6:
1050 if (1) {
1051 #ifdef AF_INET6
1052 #ifdef AF_UNIX
1053 if (socket_family == AF_UNIX) {
1054 OPENSSL_free(host); host = NULL;
1055 OPENSSL_free(port); port = NULL;
1056 }
1057 #endif
1058 socket_family = AF_INET6;
1059 } else {
1060 #endif
1061 BIO_printf(bio_err, "%s: IPv6 domain sockets unsupported\n", prog);
1062 goto end;
1063 }
1064 break;
1065 case OPT_PORT:
1066 #ifdef AF_UNIX
1067 if (socket_family == AF_UNIX) {
1068 socket_family = AF_UNSPEC;
1069 }
1070 #endif
1071 OPENSSL_free(port); port = NULL;
1072 OPENSSL_free(host); host = NULL;
1073 if (BIO_parse_hostserv(opt_arg(), NULL, &port, BIO_PARSE_PRIO_SERV) < 1) {
1074 BIO_printf(bio_err,
1075 "%s: -port argument malformed or ambiguous\n",
1076 port);
1077 goto end;
1078 }
1079 break;
1080 case OPT_ACCEPT:
1081 #ifdef AF_UNIX
1082 if (socket_family == AF_UNIX) {
1083 socket_family = AF_UNSPEC;
1084 }
1085 #endif
1086 OPENSSL_free(port); port = NULL;
1087 OPENSSL_free(host); host = NULL;
1088 if (BIO_parse_hostserv(opt_arg(), &host, &port, BIO_PARSE_PRIO_SERV) < 1) {
1089 BIO_printf(bio_err,
1090 "%s: -accept argument malformed or ambiguous\n",
1091 port);
1092 goto end;
1093 }
1094 break;
1095 #ifdef AF_UNIX
1096 case OPT_UNIX:
1097 socket_family = AF_UNIX;
1098 OPENSSL_free(host); host = BUF_strdup(opt_arg());
1099 OPENSSL_free(port); port = NULL;
1100 break;
1101 case OPT_UNLINK:
1102 unlink_unix_path = 1;
1103 break;
1104 #endif
1105 case OPT_NACCEPT:
1106 naccept = atol(opt_arg());
1107 break;
1108 case OPT_VERIFY:
1109 s_server_verify = SSL_VERIFY_PEER | SSL_VERIFY_CLIENT_ONCE;
1110 verify_args.depth = atoi(opt_arg());
1111 if (!s_quiet)
1112 BIO_printf(bio_err, "verify depth is %d\n", verify_args.depth);
1113 break;
1114 case OPT_UPPER_V_VERIFY:
1115 s_server_verify =
1116 SSL_VERIFY_PEER | SSL_VERIFY_FAIL_IF_NO_PEER_CERT |
1117 SSL_VERIFY_CLIENT_ONCE;
1118 verify_args.depth = atoi(opt_arg());
1119 if (!s_quiet)
1120 BIO_printf(bio_err,
1121 "verify depth is %d, must return a certificate\n",
1122 verify_args.depth);
1123 break;
1124 case OPT_CONTEXT:
1125 context = (unsigned char *)opt_arg();
1126 break;
1127 case OPT_CERT:
1128 s_cert_file = opt_arg();
1129 break;
1130 case OPT_CRL:
1131 crl_file = opt_arg();
1132 break;
1133 case OPT_CRL_DOWNLOAD:
1134 crl_download = 1;
1135 break;
1136 case OPT_SERVERINFO:
1137 s_serverinfo_file = opt_arg();
1138 break;
1139 case OPT_CERTFORM:
1140 if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &s_cert_format))
1141 goto opthelp;
1142 break;
1143 case OPT_KEY:
1144 s_key_file = opt_arg();
1145 break;
1146 case OPT_KEYFORM:
1147 if (!opt_format(opt_arg(), OPT_FMT_ANY, &s_key_format))
1148 goto opthelp;
1149 break;
1150 case OPT_PASS:
1151 passarg = opt_arg();
1152 break;
1153 case OPT_CERT_CHAIN:
1154 s_chain_file = opt_arg();
1155 break;
1156 case OPT_DHPARAM:
1157 #ifndef OPENSSL_NO_DH
1158 dhfile = opt_arg();
1159 #endif
1160 break;
1161 case OPT_DCERTFORM:
1162 if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &s_dcert_format))
1163 goto opthelp;
1164 break;
1165 case OPT_DCERT:
1166 s_dcert_file = opt_arg();
1167 break;
1168 case OPT_DKEYFORM:
1169 if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &s_dkey_format))
1170 goto opthelp;
1171 break;
1172 case OPT_DPASS:
1173 dpassarg = opt_arg();
1174 break;
1175 case OPT_DKEY:
1176 s_dkey_file = opt_arg();
1177 break;
1178 case OPT_DCERT_CHAIN:
1179 s_dchain_file = opt_arg();
1180 break;
1181 case OPT_NOCERT:
1182 nocert = 1;
1183 break;
1184 case OPT_CAPATH:
1185 CApath = opt_arg();
1186 break;
1187 case OPT_NOCAPATH:
1188 noCApath = 1;
1189 break;
1190 case OPT_CHAINCAPATH:
1191 chCApath = opt_arg();
1192 break;
1193 case OPT_VERIFYCAPATH:
1194 vfyCApath = opt_arg();
1195 break;
1196 case OPT_NO_CACHE:
1197 no_cache = 1;
1198 break;
1199 case OPT_EXT_CACHE:
1200 ext_cache = 1;
1201 break;
1202 case OPT_CRLFORM:
1203 if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &crl_format))
1204 goto opthelp;
1205 break;
1206 case OPT_S_CASES:
1207 if (ssl_args == NULL)
1208 ssl_args = sk_OPENSSL_STRING_new_null();
1209 if (ssl_args == NULL
1210 || !sk_OPENSSL_STRING_push(ssl_args, opt_flag())
1211 || !sk_OPENSSL_STRING_push(ssl_args, opt_arg())) {
1212 BIO_printf(bio_err, "%s: Memory allocation failure\n", prog);
1213 goto end;
1214 }
1215 break;
1216 case OPT_V_CASES:
1217 if (!opt_verify(o, vpm))
1218 goto end;
1219 vpmtouched++;
1220 break;
1221 case OPT_X_CASES:
1222 if (!args_excert(o, &exc))
1223 goto end;
1224 break;
1225 case OPT_VERIFY_RET_ERROR:
1226 verify_args.return_error = 1;
1227 break;
1228 case OPT_VERIFY_QUIET:
1229 verify_args.quiet = 1;
1230 break;
1231 case OPT_BUILD_CHAIN:
1232 build_chain = 1;
1233 break;
1234 case OPT_CAFILE:
1235 CAfile = opt_arg();
1236 break;
1237 case OPT_NOCAFILE:
1238 noCAfile = 1;
1239 break;
1240 case OPT_CHAINCAFILE:
1241 chCAfile = opt_arg();
1242 break;
1243 case OPT_VERIFYCAFILE:
1244 vfyCAfile = opt_arg();
1245 break;
1246 case OPT_NBIO:
1247 s_nbio = 1;
1248 break;
1249 case OPT_NBIO_TEST:
1250 s_nbio = s_nbio_test = 1;
1251 break;
1252 case OPT_IGN_EOF:
1253 s_ign_eof = 1;
1254 break;
1255 case OPT_NO_IGN_EOF:
1256 s_ign_eof = 0;
1257 break;
1258 case OPT_DEBUG:
1259 s_debug = 1;
1260 break;
1261 case OPT_TLSEXTDEBUG:
1262 s_tlsextdebug = 1;
1263 break;
1264 case OPT_STATUS:
1265 #ifndef OPENSSL_NO_OCSP
1266 s_tlsextstatus = 1;
1267 #endif
1268 break;
1269 case OPT_STATUS_VERBOSE:
1270 #ifndef OPENSSL_NO_OCSP
1271 s_tlsextstatus = tlscstatp.verbose = 1;
1272 #endif
1273 break;
1274 case OPT_STATUS_TIMEOUT:
1275 #ifndef OPENSSL_NO_OCSP
1276 s_tlsextstatus = 1;
1277 tlscstatp.timeout = atoi(opt_arg());
1278 #endif
1279 break;
1280 case OPT_STATUS_URL:
1281 #ifndef OPENSSL_NO_OCSP
1282 s_tlsextstatus = 1;
1283 if (!OCSP_parse_url(opt_arg(),
1284 &tlscstatp.host,
1285 &tlscstatp.port,
1286 &tlscstatp.path, &tlscstatp.use_ssl)) {
1287 BIO_printf(bio_err, "Error parsing URL\n");
1288 goto end;
1289 }
1290 #endif
1291 break;
1292 case OPT_STATUS_FILE:
1293 #ifndef OPENSSL_NO_OCSP
1294 s_tlsextstatus = 1;
1295 tlscstatp.respin = opt_arg();
1296 #endif
1297 break;
1298 case OPT_MSG:
1299 s_msg = 1;
1300 break;
1301 case OPT_MSGFILE:
1302 bio_s_msg = BIO_new_file(opt_arg(), "w");
1303 break;
1304 case OPT_TRACE:
1305 #ifndef OPENSSL_NO_SSL_TRACE
1306 s_msg = 2;
1307 #endif
1308 break;
1309 case OPT_SECURITY_DEBUG:
1310 sdebug = 1;
1311 break;
1312 case OPT_SECURITY_DEBUG_VERBOSE:
1313 sdebug = 2;
1314 break;
1315 case OPT_STATE:
1316 state = 1;
1317 break;
1318 case OPT_CRLF:
1319 s_crlf = 1;
1320 break;
1321 case OPT_QUIET:
1322 s_quiet = 1;
1323 break;
1324 case OPT_BRIEF:
1325 s_quiet = s_brief = verify_args.quiet = 1;
1326 break;
1327 case OPT_NO_DHE:
1328 #ifndef OPENSSL_NO_DH
1329 no_dhe = 1;
1330 #endif
1331 break;
1332 case OPT_NO_RESUME_EPHEMERAL:
1333 no_resume_ephemeral = 1;
1334 break;
1335 case OPT_PSK_HINT:
1336 #ifndef OPENSSL_NO_PSK
1337 psk_identity_hint = opt_arg();
1338 #endif
1339 break;
1340 case OPT_PSK:
1341 #ifndef OPENSSL_NO_PSK
1342 for (p = psk_key = opt_arg(); *p; p++) {
1343 if (isxdigit(_UC(*p)))
1344 continue;
1345 BIO_printf(bio_err, "Not a hex number '%s'\n", *argv);
1346 goto end;
1347 }
1348 #endif
1349 break;
1350 case OPT_SRPVFILE:
1351 #ifndef OPENSSL_NO_SRP
1352 srp_verifier_file = opt_arg();
1353 if (min_version < TLS1_VERSION)
1354 min_version = TLS1_VERSION;
1355 #endif
1356 break;
1357 case OPT_SRPUSERSEED:
1358 #ifndef OPENSSL_NO_SRP
1359 srpuserseed = opt_arg();
1360 if (min_version < TLS1_VERSION)
1361 min_version = TLS1_VERSION;
1362 #endif
1363 break;
1364 case OPT_REV:
1365 rev = 1;
1366 break;
1367 case OPT_WWW:
1368 www = 1;
1369 break;
1370 case OPT_UPPER_WWW:
1371 www = 2;
1372 break;
1373 case OPT_HTTP:
1374 www = 3;
1375 break;
1376 case OPT_SSL_CONFIG:
1377 ssl_config = opt_arg();
1378 break;
1379 case OPT_SSL3:
1380 min_version = SSL3_VERSION;
1381 max_version = SSL3_VERSION;
1382 break;
1383 case OPT_TLS1_3:
1384 min_version = TLS1_3_VERSION;
1385 max_version = TLS1_3_VERSION;
1386 break;
1387 case OPT_TLS1_2:
1388 min_version = TLS1_2_VERSION;
1389 max_version = TLS1_2_VERSION;
1390 break;
1391 case OPT_TLS1_1:
1392 min_version = TLS1_1_VERSION;
1393 max_version = TLS1_1_VERSION;
1394 break;
1395 case OPT_TLS1:
1396 min_version = TLS1_VERSION;
1397 max_version = TLS1_VERSION;
1398 break;
1399 case OPT_DTLS:
1400 #ifndef OPENSSL_NO_DTLS
1401 meth = DTLS_server_method();
1402 socket_type = SOCK_DGRAM;
1403 #endif
1404 break;
1405 case OPT_DTLS1:
1406 #ifndef OPENSSL_NO_DTLS
1407 meth = DTLS_server_method();
1408 min_version = DTLS1_VERSION;
1409 max_version = DTLS1_VERSION;
1410 socket_type = SOCK_DGRAM;
1411 #endif
1412 break;
1413 case OPT_DTLS1_2:
1414 #ifndef OPENSSL_NO_DTLS
1415 meth = DTLS_server_method();
1416 min_version = DTLS1_2_VERSION;
1417 max_version = DTLS1_2_VERSION;
1418 socket_type = SOCK_DGRAM;
1419 #endif
1420 break;
1421 case OPT_TIMEOUT:
1422 #ifndef OPENSSL_NO_DTLS
1423 enable_timeouts = 1;
1424 #endif
1425 break;
1426 case OPT_MTU:
1427 #ifndef OPENSSL_NO_DTLS
1428 socket_mtu = atol(opt_arg());
1429 #endif
1430 break;
1431 case OPT_LISTEN:
1432 #ifndef OPENSSL_NO_DTLS
1433 dtlslisten = 1;
1434 #endif
1435 break;
1436 case OPT_ID_PREFIX:
1437 session_id_prefix = opt_arg();
1438 break;
1439 case OPT_ENGINE:
1440 engine = setup_engine(opt_arg(), 1);
1441 break;
1442 case OPT_RAND:
1443 inrand = opt_arg();
1444 break;
1445 case OPT_SERVERNAME:
1446 tlsextcbp.servername = opt_arg();
1447 break;
1448 case OPT_SERVERNAME_FATAL:
1449 tlsextcbp.extension_error = SSL_TLSEXT_ERR_ALERT_FATAL;
1450 break;
1451 case OPT_CERT2:
1452 s_cert_file2 = opt_arg();
1453 break;
1454 case OPT_KEY2:
1455 s_key_file2 = opt_arg();
1456 break;
1457 case OPT_NEXTPROTONEG:
1458 # ifndef OPENSSL_NO_NEXTPROTONEG
1459 next_proto_neg_in = opt_arg();
1460 #endif
1461 break;
1462 case OPT_ALPN:
1463 alpn_in = opt_arg();
1464 break;
1465 case OPT_SRTP_PROFILES:
1466 #ifndef OPENSSL_NO_SRTP
1467 srtp_profiles = opt_arg();
1468 #endif
1469 break;
1470 case OPT_KEYMATEXPORT:
1471 keymatexportlabel = opt_arg();
1472 break;
1473 case OPT_KEYMATEXPORTLEN:
1474 keymatexportlen = atoi(opt_arg());
1475 break;
1476 case OPT_ASYNC:
1477 async = 1;
1478 break;
1479 case OPT_SPLIT_SEND_FRAG:
1480 split_send_fragment = atoi(opt_arg());
1481 if (split_send_fragment == 0) {
1482 /*
1483 * Not allowed - set to a deliberately bad value so we get an
1484 * error message below
1485 */
1486 split_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH + 1;
1487 }
1488 break;
1489 case OPT_MAX_PIPELINES:
1490 max_pipelines = atoi(opt_arg());
1491 break;
1492 case OPT_READ_BUF:
1493 read_buf_len = atoi(opt_arg());
1494 break;
1495 case OPT_KEYLOG_FILE:
1496 keylog_file = opt_arg();
1497 break;
1498
1499 }
1500 }
1501 argc = opt_num_rest();
1502 argv = opt_rest();
1503
1504 #ifndef OPENSSL_NO_DTLS
1505 if (www && socket_type == SOCK_DGRAM) {
1506 BIO_printf(bio_err, "Can't use -HTTP, -www or -WWW with DTLS\n");
1507 goto end;
1508 }
1509
1510 if (dtlslisten && socket_type != SOCK_DGRAM) {
1511 BIO_printf(bio_err, "Can only use -listen with DTLS\n");
1512 goto end;
1513 }
1514 #endif
1515
1516 #ifdef AF_UNIX
1517 if (socket_family == AF_UNIX && socket_type != SOCK_STREAM) {
1518 BIO_printf(bio_err,
1519 "Can't use unix sockets and datagrams together\n");
1520 goto end;
1521 }
1522 #endif
1523
1524 if (split_send_fragment > SSL3_RT_MAX_PLAIN_LENGTH) {
1525 BIO_printf(bio_err, "Bad split send fragment size\n");
1526 goto end;
1527 }
1528
1529 if (max_pipelines > SSL_MAX_PIPELINES) {
1530 BIO_printf(bio_err, "Bad max pipelines value\n");
1531 goto end;
1532 }
1533
1534 if (!app_passwd(passarg, dpassarg, &pass, &dpass)) {
1535 BIO_printf(bio_err, "Error getting password\n");
1536 goto end;
1537 }
1538
1539 if (s_key_file == NULL)
1540 s_key_file = s_cert_file;
1541
1542 if (s_key_file2 == NULL)
1543 s_key_file2 = s_cert_file2;
1544
1545 if (!load_excert(&exc))
1546 goto end;
1547
1548 if (nocert == 0) {
1549 s_key = load_key(s_key_file, s_key_format, 0, pass, engine,
1550 "server certificate private key file");
1551 if (!s_key) {
1552 ERR_print_errors(bio_err);
1553 goto end;
1554 }
1555
1556 s_cert = load_cert(s_cert_file, s_cert_format,
1557 "server certificate file");
1558
1559 if (!s_cert) {
1560 ERR_print_errors(bio_err);
1561 goto end;
1562 }
1563 if (s_chain_file) {
1564 if (!load_certs(s_chain_file, &s_chain, FORMAT_PEM, NULL,
1565 "server certificate chain"))
1566 goto end;
1567 }
1568
1569 if (tlsextcbp.servername) {
1570 s_key2 = load_key(s_key_file2, s_key_format, 0, pass, engine,
1571 "second server certificate private key file");
1572 if (!s_key2) {
1573 ERR_print_errors(bio_err);
1574 goto end;
1575 }
1576
1577 s_cert2 = load_cert(s_cert_file2, s_cert_format,
1578 "second server certificate file");
1579
1580 if (!s_cert2) {
1581 ERR_print_errors(bio_err);
1582 goto end;
1583 }
1584 }
1585 }
1586 #if !defined(OPENSSL_NO_NEXTPROTONEG)
1587 if (next_proto_neg_in) {
1588 size_t len;
1589 next_proto.data = next_protos_parse(&len, next_proto_neg_in);
1590 if (next_proto.data == NULL)
1591 goto end;
1592 next_proto.len = len;
1593 } else {
1594 next_proto.data = NULL;
1595 }
1596 #endif
1597 alpn_ctx.data = NULL;
1598 if (alpn_in) {
1599 size_t len;
1600 alpn_ctx.data = next_protos_parse(&len, alpn_in);
1601 if (alpn_ctx.data == NULL)
1602 goto end;
1603 alpn_ctx.len = len;
1604 }
1605
1606 if (crl_file) {
1607 X509_CRL *crl;
1608 crl = load_crl(crl_file, crl_format);
1609 if (!crl) {
1610 BIO_puts(bio_err, "Error loading CRL\n");
1611 ERR_print_errors(bio_err);
1612 goto end;
1613 }
1614 crls = sk_X509_CRL_new_null();
1615 if (!crls || !sk_X509_CRL_push(crls, crl)) {
1616 BIO_puts(bio_err, "Error adding CRL\n");
1617 ERR_print_errors(bio_err);
1618 X509_CRL_free(crl);
1619 goto end;
1620 }
1621 }
1622
1623 if (s_dcert_file) {
1624
1625 if (s_dkey_file == NULL)
1626 s_dkey_file = s_dcert_file;
1627
1628 s_dkey = load_key(s_dkey_file, s_dkey_format,
1629 0, dpass, engine, "second certificate private key file");
1630 if (!s_dkey) {
1631 ERR_print_errors(bio_err);
1632 goto end;
1633 }
1634
1635 s_dcert = load_cert(s_dcert_file, s_dcert_format,
1636 "second server certificate file");
1637
1638 if (!s_dcert) {
1639 ERR_print_errors(bio_err);
1640 goto end;
1641 }
1642 if (s_dchain_file) {
1643 if (!load_certs(s_dchain_file, &s_dchain, FORMAT_PEM, NULL,
1644 "second server certificate chain"))
1645 goto end;
1646 }
1647
1648 }
1649
1650 if (!app_RAND_load_file(NULL, 1) && inrand == NULL
1651 && !RAND_status()) {
1652 BIO_printf(bio_err,
1653 "warning, not much extra random data, consider using the -rand option\n");
1654 }
1655 if (inrand != NULL)
1656 BIO_printf(bio_err, "%ld semi-random bytes loaded\n",
1657 app_RAND_load_files(inrand));
1658
1659 if (bio_s_out == NULL) {
1660 if (s_quiet && !s_debug) {
1661 bio_s_out = BIO_new(BIO_s_null());
1662 if (s_msg && !bio_s_msg)
1663 bio_s_msg = dup_bio_out(FORMAT_TEXT);
1664 } else {
1665 if (bio_s_out == NULL)
1666 bio_s_out = dup_bio_out(FORMAT_TEXT);
1667 }
1668 }
1669 #if !defined(OPENSSL_NO_RSA) || !defined(OPENSSL_NO_DSA) || !defined(OPENSSL_NO_EC)
1670 if (nocert)
1671 #endif
1672 {
1673 s_cert_file = NULL;
1674 s_key_file = NULL;
1675 s_dcert_file = NULL;
1676 s_dkey_file = NULL;
1677 s_cert_file2 = NULL;
1678 s_key_file2 = NULL;
1679 }
1680
1681 ctx = SSL_CTX_new(meth);
1682 if (ctx == NULL) {
1683 ERR_print_errors(bio_err);
1684 goto end;
1685 }
1686 if (sdebug)
1687 ssl_ctx_security_debug(ctx, sdebug);
1688 if (ssl_config) {
1689 if (SSL_CTX_config(ctx, ssl_config) == 0) {
1690 BIO_printf(bio_err, "Error using configuration \"%s\"\n",
1691 ssl_config);
1692 ERR_print_errors(bio_err);
1693 goto end;
1694 }
1695 }
1696 if (SSL_CTX_set_min_proto_version(ctx, min_version) == 0)
1697 goto end;
1698 if (SSL_CTX_set_max_proto_version(ctx, max_version) == 0)
1699 goto end;
1700
1701 if (session_id_prefix) {
1702 if (strlen(session_id_prefix) >= 32)
1703 BIO_printf(bio_err,
1704 "warning: id_prefix is too long, only one new session will be possible\n");
1705 if (!SSL_CTX_set_generate_session_id(ctx, generate_session_id)) {
1706 BIO_printf(bio_err, "error setting 'id_prefix'\n");
1707 ERR_print_errors(bio_err);
1708 goto end;
1709 }
1710 BIO_printf(bio_err, "id_prefix '%s' set.\n", session_id_prefix);
1711 }
1712 SSL_CTX_set_quiet_shutdown(ctx, 1);
1713 if (exc)
1714 ssl_ctx_set_excert(ctx, exc);
1715
1716 if (state)
1717 SSL_CTX_set_info_callback(ctx, apps_ssl_info_callback);
1718 if (no_cache)
1719 SSL_CTX_set_session_cache_mode(ctx, SSL_SESS_CACHE_OFF);
1720 else if (ext_cache)
1721 init_session_cache_ctx(ctx);
1722 else
1723 SSL_CTX_sess_set_cache_size(ctx, 128);
1724
1725 if (async) {
1726 SSL_CTX_set_mode(ctx, SSL_MODE_ASYNC);
1727 }
1728 if (split_send_fragment > 0) {
1729 SSL_CTX_set_split_send_fragment(ctx, split_send_fragment);
1730 }
1731 if (max_pipelines > 0) {
1732 SSL_CTX_set_max_pipelines(ctx, max_pipelines);
1733 }
1734
1735 if (read_buf_len > 0) {
1736 SSL_CTX_set_default_read_buffer_len(ctx, read_buf_len);
1737 }
1738 #ifndef OPENSSL_NO_SRTP
1739 if (srtp_profiles != NULL) {
1740 /* Returns 0 on success! */
1741 if (SSL_CTX_set_tlsext_use_srtp(ctx, srtp_profiles) != 0) {
1742 BIO_printf(bio_err, "Error setting SRTP profile\n");
1743 ERR_print_errors(bio_err);
1744 goto end;
1745 }
1746 }
1747 #endif
1748
1749 if (!ctx_set_verify_locations(ctx, CAfile, CApath, noCAfile, noCApath)) {
1750 ERR_print_errors(bio_err);
1751 goto end;
1752 }
1753 if (vpmtouched && !SSL_CTX_set1_param(ctx, vpm)) {
1754 BIO_printf(bio_err, "Error setting verify params\n");
1755 ERR_print_errors(bio_err);
1756 goto end;
1757 }
1758
1759 ssl_ctx_add_crls(ctx, crls, 0);
1760 if (!config_ctx(cctx, ssl_args, ctx))
1761 goto end;
1762
1763 if (!ssl_load_stores(ctx, vfyCApath, vfyCAfile, chCApath, chCAfile,
1764 crls, crl_download)) {
1765 BIO_printf(bio_err, "Error loading store locations\n");
1766 ERR_print_errors(bio_err);
1767 goto end;
1768 }
1769
1770 if (s_cert2) {
1771 ctx2 = SSL_CTX_new(meth);
1772 if (ctx2 == NULL) {
1773 ERR_print_errors(bio_err);
1774 goto end;
1775 }
1776 }
1777
1778 if (ctx2) {
1779 BIO_printf(bio_s_out, "Setting secondary ctx parameters\n");
1780
1781 if (sdebug)
1782 ssl_ctx_security_debug(ctx, sdebug);
1783
1784 if (session_id_prefix) {
1785 if (strlen(session_id_prefix) >= 32)
1786 BIO_printf(bio_err,
1787 "warning: id_prefix is too long, only one new session will be possible\n");
1788 if (!SSL_CTX_set_generate_session_id(ctx2, generate_session_id)) {
1789 BIO_printf(bio_err, "error setting 'id_prefix'\n");
1790 ERR_print_errors(bio_err);
1791 goto end;
1792 }
1793 BIO_printf(bio_err, "id_prefix '%s' set.\n", session_id_prefix);
1794 }
1795 SSL_CTX_set_quiet_shutdown(ctx2, 1);
1796 if (exc)
1797 ssl_ctx_set_excert(ctx2, exc);
1798
1799 if (state)
1800 SSL_CTX_set_info_callback(ctx2, apps_ssl_info_callback);
1801
1802 if (no_cache)
1803 SSL_CTX_set_session_cache_mode(ctx2, SSL_SESS_CACHE_OFF);
1804 else if (ext_cache)
1805 init_session_cache_ctx(ctx2);
1806 else
1807 SSL_CTX_sess_set_cache_size(ctx2, 128);
1808
1809 if (async)
1810 SSL_CTX_set_mode(ctx2, SSL_MODE_ASYNC);
1811
1812 if (!ctx_set_verify_locations(ctx2, CAfile, CApath, noCAfile,
1813 noCApath)) {
1814 ERR_print_errors(bio_err);
1815 goto end;
1816 }
1817 if (vpmtouched && !SSL_CTX_set1_param(ctx2, vpm)) {
1818 BIO_printf(bio_err, "Error setting verify params\n");
1819 ERR_print_errors(bio_err);
1820 goto end;
1821 }
1822
1823 ssl_ctx_add_crls(ctx2, crls, 0);
1824 if (!config_ctx(cctx, ssl_args, ctx2))
1825 goto end;
1826 }
1827 #ifndef OPENSSL_NO_NEXTPROTONEG
1828 if (next_proto.data)
1829 SSL_CTX_set_next_protos_advertised_cb(ctx, next_proto_cb,
1830 &next_proto);
1831 #endif
1832 if (alpn_ctx.data)
1833 SSL_CTX_set_alpn_select_cb(ctx, alpn_cb, &alpn_ctx);
1834
1835 #ifndef OPENSSL_NO_DH
1836 if (!no_dhe) {
1837 DH *dh = NULL;
1838
1839 if (dhfile)
1840 dh = load_dh_param(dhfile);
1841 else if (s_cert_file)
1842 dh = load_dh_param(s_cert_file);
1843
1844 if (dh != NULL) {
1845 BIO_printf(bio_s_out, "Setting temp DH parameters\n");
1846 } else {
1847 BIO_printf(bio_s_out, "Using default temp DH parameters\n");
1848 }
1849 (void)BIO_flush(bio_s_out);
1850
1851 if (dh == NULL)
1852 SSL_CTX_set_dh_auto(ctx, 1);
1853 else if (!SSL_CTX_set_tmp_dh(ctx, dh)) {
1854 BIO_puts(bio_err, "Error setting temp DH parameters\n");
1855 ERR_print_errors(bio_err);
1856 DH_free(dh);
1857 goto end;
1858 }
1859
1860 if (ctx2) {
1861 if (!dhfile) {
1862 DH *dh2 = load_dh_param(s_cert_file2);
1863 if (dh2 != NULL) {
1864 BIO_printf(bio_s_out, "Setting temp DH parameters\n");
1865 (void)BIO_flush(bio_s_out);
1866
1867 DH_free(dh);
1868 dh = dh2;
1869 }
1870 }
1871 if (dh == NULL)
1872 SSL_CTX_set_dh_auto(ctx2, 1);
1873 else if (!SSL_CTX_set_tmp_dh(ctx2, dh)) {
1874 BIO_puts(bio_err, "Error setting temp DH parameters\n");
1875 ERR_print_errors(bio_err);
1876 DH_free(dh);
1877 goto end;
1878 }
1879 }
1880 DH_free(dh);
1881 }
1882 #endif
1883
1884 if (!set_cert_key_stuff(ctx, s_cert, s_key, s_chain, build_chain))
1885 goto end;
1886
1887 if (s_serverinfo_file != NULL
1888 && !SSL_CTX_use_serverinfo_file(ctx, s_serverinfo_file)) {
1889 ERR_print_errors(bio_err);
1890 goto end;
1891 }
1892
1893 if (ctx2 && !set_cert_key_stuff(ctx2, s_cert2, s_key2, NULL, build_chain))
1894 goto end;
1895
1896 if (s_dcert != NULL) {
1897 if (!set_cert_key_stuff(ctx, s_dcert, s_dkey, s_dchain, build_chain))
1898 goto end;
1899 }
1900
1901 if (no_resume_ephemeral) {
1902 SSL_CTX_set_not_resumable_session_callback(ctx,
1903 not_resumable_sess_cb);
1904
1905 if (ctx2)
1906 SSL_CTX_set_not_resumable_session_callback(ctx2,
1907 not_resumable_sess_cb);
1908 }
1909 #ifndef OPENSSL_NO_PSK
1910 if (psk_key != NULL) {
1911 if (s_debug)
1912 BIO_printf(bio_s_out, "PSK key given, setting server callback\n");
1913 SSL_CTX_set_psk_server_callback(ctx, psk_server_cb);
1914 }
1915
1916 if (!SSL_CTX_use_psk_identity_hint(ctx, psk_identity_hint)) {
1917 BIO_printf(bio_err, "error setting PSK identity hint to context\n");
1918 ERR_print_errors(bio_err);
1919 goto end;
1920 }
1921 #endif
1922
1923 SSL_CTX_set_verify(ctx, s_server_verify, verify_callback);
1924 if (!SSL_CTX_set_session_id_context(ctx,
1925 (void *)&s_server_session_id_context,
1926 sizeof s_server_session_id_context)) {
1927 BIO_printf(bio_err, "error setting session id context\n");
1928 ERR_print_errors(bio_err);
1929 goto end;
1930 }
1931
1932 /* Set DTLS cookie generation and verification callbacks */
1933 SSL_CTX_set_cookie_generate_cb(ctx, generate_cookie_callback);
1934 SSL_CTX_set_cookie_verify_cb(ctx, verify_cookie_callback);
1935
1936 if (ctx2) {
1937 SSL_CTX_set_verify(ctx2, s_server_verify, verify_callback);
1938 if (!SSL_CTX_set_session_id_context(ctx2,
1939 (void *)&s_server_session_id_context,
1940 sizeof s_server_session_id_context)) {
1941 BIO_printf(bio_err, "error setting session id context\n");
1942 ERR_print_errors(bio_err);
1943 goto end;
1944 }
1945 tlsextcbp.biodebug = bio_s_out;
1946 SSL_CTX_set_tlsext_servername_callback(ctx2, ssl_servername_cb);
1947 SSL_CTX_set_tlsext_servername_arg(ctx2, &tlsextcbp);
1948 SSL_CTX_set_tlsext_servername_callback(ctx, ssl_servername_cb);
1949 SSL_CTX_set_tlsext_servername_arg(ctx, &tlsextcbp);
1950 }
1951
1952 #ifndef OPENSSL_NO_SRP
1953 if (srp_verifier_file != NULL) {
1954 srp_callback_parm.vb = SRP_VBASE_new(srpuserseed);
1955 srp_callback_parm.user = NULL;
1956 srp_callback_parm.login = NULL;
1957 if ((ret =
1958 SRP_VBASE_init(srp_callback_parm.vb,
1959 srp_verifier_file)) != SRP_NO_ERROR) {
1960 BIO_printf(bio_err,
1961 "Cannot initialize SRP verifier file \"%s\":ret=%d\n",
1962 srp_verifier_file, ret);
1963 goto end;
1964 }
1965 SSL_CTX_set_verify(ctx, SSL_VERIFY_NONE, verify_callback);
1966 SSL_CTX_set_srp_cb_arg(ctx, &srp_callback_parm);
1967 SSL_CTX_set_srp_username_callback(ctx, ssl_srp_server_param_cb);
1968 } else
1969 #endif
1970 if (CAfile != NULL) {
1971 SSL_CTX_set_client_CA_list(ctx, SSL_load_client_CA_file(CAfile));
1972
1973 if (ctx2)
1974 SSL_CTX_set_client_CA_list(ctx2, SSL_load_client_CA_file(CAfile));
1975 }
1976 #ifndef OPENSSL_NO_OCSP
1977 if (s_tlsextstatus) {
1978 SSL_CTX_set_tlsext_status_cb(ctx, cert_status_cb);
1979 SSL_CTX_set_tlsext_status_arg(ctx, &tlscstatp);
1980 if (ctx2) {
1981 SSL_CTX_set_tlsext_status_cb(ctx2, cert_status_cb);
1982 SSL_CTX_set_tlsext_status_arg(ctx2, &tlscstatp);
1983 }
1984 }
1985 #endif
1986 if (set_keylog_file(ctx, keylog_file))
1987 goto end;
1988
1989 BIO_printf(bio_s_out, "ACCEPT\n");
1990 (void)BIO_flush(bio_s_out);
1991 if (rev)
1992 server_cb = rev_body;
1993 else if (www)
1994 server_cb = www_body;
1995 else
1996 server_cb = sv_body;
1997 #ifdef AF_UNIX
1998 if (socket_family == AF_UNIX
1999 && unlink_unix_path)
2000 unlink(host);
2001 #endif
2002 do_server(&accept_socket, host, port, socket_family, socket_type,
2003 server_cb, context, naccept);
2004 print_stats(bio_s_out, ctx);
2005 ret = 0;
2006 end:
2007 SSL_CTX_free(ctx);
2008 set_keylog_file(NULL, NULL);
2009 X509_free(s_cert);
2010 sk_X509_CRL_pop_free(crls, X509_CRL_free);
2011 X509_free(s_dcert);
2012 EVP_PKEY_free(s_key);
2013 EVP_PKEY_free(s_dkey);
2014 sk_X509_pop_free(s_chain, X509_free);
2015 sk_X509_pop_free(s_dchain, X509_free);
2016 OPENSSL_free(pass);
2017 OPENSSL_free(dpass);
2018 OPENSSL_free(host);
2019 OPENSSL_free(port);
2020 X509_VERIFY_PARAM_free(vpm);
2021 free_sessions();
2022 OPENSSL_free(tlscstatp.host);
2023 OPENSSL_free(tlscstatp.port);
2024 OPENSSL_free(tlscstatp.path);
2025 SSL_CTX_free(ctx2);
2026 X509_free(s_cert2);
2027 EVP_PKEY_free(s_key2);
2028 #ifndef OPENSSL_NO_NEXTPROTONEG
2029 OPENSSL_free(next_proto.data);
2030 #endif
2031 OPENSSL_free(alpn_ctx.data);
2032 ssl_excert_free(exc);
2033 sk_OPENSSL_STRING_free(ssl_args);
2034 SSL_CONF_CTX_free(cctx);
2035 release_engine(engine);
2036 BIO_free(bio_s_out);
2037 bio_s_out = NULL;
2038 BIO_free(bio_s_msg);
2039 bio_s_msg = NULL;
2040 #ifdef CHARSET_EBCDIC
2041 BIO_meth_free(methods_ebcdic);
2042 #endif
2043 return (ret);
2044 }
2045
2046 static void print_stats(BIO *bio, SSL_CTX *ssl_ctx)
2047 {
2048 BIO_printf(bio, "%4ld items in the session cache\n",
2049 SSL_CTX_sess_number(ssl_ctx));
2050 BIO_printf(bio, "%4ld client connects (SSL_connect())\n",
2051 SSL_CTX_sess_connect(ssl_ctx));
2052 BIO_printf(bio, "%4ld client renegotiates (SSL_connect())\n",
2053 SSL_CTX_sess_connect_renegotiate(ssl_ctx));
2054 BIO_printf(bio, "%4ld client connects that finished\n",
2055 SSL_CTX_sess_connect_good(ssl_ctx));
2056 BIO_printf(bio, "%4ld server accepts (SSL_accept())\n",
2057 SSL_CTX_sess_accept(ssl_ctx));
2058 BIO_printf(bio, "%4ld server renegotiates (SSL_accept())\n",
2059 SSL_CTX_sess_accept_renegotiate(ssl_ctx));
2060 BIO_printf(bio, "%4ld server accepts that finished\n",
2061 SSL_CTX_sess_accept_good(ssl_ctx));
2062 BIO_printf(bio, "%4ld session cache hits\n", SSL_CTX_sess_hits(ssl_ctx));
2063 BIO_printf(bio, "%4ld session cache misses\n",
2064 SSL_CTX_sess_misses(ssl_ctx));
2065 BIO_printf(bio, "%4ld session cache timeouts\n",
2066 SSL_CTX_sess_timeouts(ssl_ctx));
2067 BIO_printf(bio, "%4ld callback cache hits\n",
2068 SSL_CTX_sess_cb_hits(ssl_ctx));
2069 BIO_printf(bio, "%4ld cache full overflows (%ld allowed)\n",
2070 SSL_CTX_sess_cache_full(ssl_ctx),
2071 SSL_CTX_sess_get_cache_size(ssl_ctx));
2072 }
2073
2074 static int sv_body(int s, int stype, unsigned char *context)
2075 {
2076 char *buf = NULL;
2077 fd_set readfds;
2078 int ret = 1, width;
2079 int k, i;
2080 unsigned long l;
2081 SSL *con = NULL;
2082 BIO *sbio;
2083 struct timeval timeout;
2084 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
2085 struct timeval tv;
2086 #else
2087 struct timeval *timeoutp;
2088 #endif
2089
2090 buf = app_malloc(bufsize, "server buffer");
2091 if (s_nbio) {
2092 if (!BIO_socket_nbio(s, 1))
2093 ERR_print_errors(bio_err);
2094 else if (!s_quiet)
2095 BIO_printf(bio_err, "Turned on non blocking io\n");
2096 }
2097
2098 if (con == NULL) {
2099 con = SSL_new(ctx);
2100
2101 if (s_tlsextdebug) {
2102 SSL_set_tlsext_debug_callback(con, tlsext_cb);
2103 SSL_set_tlsext_debug_arg(con, bio_s_out);
2104 }
2105
2106 if (context
2107 && !SSL_set_session_id_context(con,
2108 context, strlen((char *)context))) {
2109 BIO_printf(bio_err, "Error setting session id context\n");
2110 ret = -1;
2111 goto err;
2112 }
2113 }
2114 if (!SSL_clear(con)) {
2115 BIO_printf(bio_err, "Error clearing SSL connection\n");
2116 ret = -1;
2117 goto err;
2118 }
2119 #ifndef OPENSSL_NO_DTLS
2120 if (stype == SOCK_DGRAM) {
2121
2122 sbio = BIO_new_dgram(s, BIO_NOCLOSE);
2123
2124 if (enable_timeouts) {
2125 timeout.tv_sec = 0;
2126 timeout.tv_usec = DGRAM_RCV_TIMEOUT;
2127 BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_RECV_TIMEOUT, 0, &timeout);
2128
2129 timeout.tv_sec = 0;
2130 timeout.tv_usec = DGRAM_SND_TIMEOUT;
2131 BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_SEND_TIMEOUT, 0, &timeout);
2132 }
2133
2134 if (socket_mtu) {
2135 if (socket_mtu < DTLS_get_link_min_mtu(con)) {
2136 BIO_printf(bio_err, "MTU too small. Must be at least %ld\n",
2137 DTLS_get_link_min_mtu(con));
2138 ret = -1;
2139 BIO_free(sbio);
2140 goto err;
2141 }
2142 SSL_set_options(con, SSL_OP_NO_QUERY_MTU);
2143 if (!DTLS_set_link_mtu(con, socket_mtu)) {
2144 BIO_printf(bio_err, "Failed to set MTU\n");
2145 ret = -1;
2146 BIO_free(sbio);
2147 goto err;
2148 }
2149 } else
2150 /* want to do MTU discovery */
2151 BIO_ctrl(sbio, BIO_CTRL_DGRAM_MTU_DISCOVER, 0, NULL);
2152
2153 /* turn on cookie exchange */
2154 SSL_set_options(con, SSL_OP_COOKIE_EXCHANGE);
2155 } else
2156 #endif
2157 sbio = BIO_new_socket(s, BIO_NOCLOSE);
2158
2159 if (s_nbio_test) {
2160 BIO *test;
2161
2162 test = BIO_new(BIO_f_nbio_test());
2163 sbio = BIO_push(test, sbio);
2164 }
2165
2166 SSL_set_bio(con, sbio, sbio);
2167 SSL_set_accept_state(con);
2168 /* SSL_set_fd(con,s); */
2169
2170 if (s_debug) {
2171 BIO_set_callback(SSL_get_rbio(con), bio_dump_callback);
2172 BIO_set_callback_arg(SSL_get_rbio(con), (char *)bio_s_out);
2173 }
2174 if (s_msg) {
2175 #ifndef OPENSSL_NO_SSL_TRACE
2176 if (s_msg == 2)
2177 SSL_set_msg_callback(con, SSL_trace);
2178 else
2179 #endif
2180 SSL_set_msg_callback(con, msg_cb);
2181 SSL_set_msg_callback_arg(con, bio_s_msg ? bio_s_msg : bio_s_out);
2182 }
2183
2184 if (s_tlsextdebug) {
2185 SSL_set_tlsext_debug_callback(con, tlsext_cb);
2186 SSL_set_tlsext_debug_arg(con, bio_s_out);
2187 }
2188
2189 if (fileno_stdin() > s)
2190 width = fileno_stdin() + 1;
2191 else
2192 width = s + 1;
2193 for (;;) {
2194 int read_from_terminal;
2195 int read_from_sslcon;
2196
2197 read_from_terminal = 0;
2198 read_from_sslcon = SSL_has_pending(con)
2199 || (async && SSL_waiting_for_async(con));
2200
2201 if (!read_from_sslcon) {
2202 FD_ZERO(&readfds);
2203 #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS)
2204 openssl_fdset(fileno_stdin(), &readfds);
2205 #endif
2206 openssl_fdset(s, &readfds);
2207 /*
2208 * Note: under VMS with SOCKETSHR the second parameter is
2209 * currently of type (int *) whereas under other systems it is
2210 * (void *) if you don't have a cast it will choke the compiler:
2211 * if you do have a cast then you can either go for (int *) or
2212 * (void *).
2213 */
2214 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
2215 /*
2216 * Under DOS (non-djgpp) and Windows we can't select on stdin:
2217 * only on sockets. As a workaround we timeout the select every
2218 * second and check for any keypress. In a proper Windows
2219 * application we wouldn't do this because it is inefficient.
2220 */
2221 tv.tv_sec = 1;
2222 tv.tv_usec = 0;
2223 i = select(width, (void *)&readfds, NULL, NULL, &tv);
2224 if (has_stdin_waiting())
2225 read_from_terminal = 1;
2226 if ((i < 0) || (!i && !read_from_terminal))
2227 continue;
2228 #else
2229 if ((SSL_version(con) == DTLS1_VERSION) &&
2230 DTLSv1_get_timeout(con, &timeout))
2231 timeoutp = &timeout;
2232 else
2233 timeoutp = NULL;
2234
2235 i = select(width, (void *)&readfds, NULL, NULL, timeoutp);
2236
2237 if ((SSL_version(con) == DTLS1_VERSION)
2238 && DTLSv1_handle_timeout(con) > 0) {
2239 BIO_printf(bio_err, "TIMEOUT occurred\n");
2240 }
2241
2242 if (i <= 0)
2243 continue;
2244 if (FD_ISSET(fileno_stdin(), &readfds))
2245 read_from_terminal = 1;
2246 #endif
2247 if (FD_ISSET(s, &readfds))
2248 read_from_sslcon = 1;
2249 }
2250 if (read_from_terminal) {
2251 if (s_crlf) {
2252 int j, lf_num;
2253
2254 i = raw_read_stdin(buf, bufsize / 2);
2255 lf_num = 0;
2256 /* both loops are skipped when i <= 0 */
2257 for (j = 0; j < i; j++)
2258 if (buf[j] == '\n')
2259 lf_num++;
2260 for (j = i - 1; j >= 0; j--) {
2261 buf[j + lf_num] = buf[j];
2262 if (buf[j] == '\n') {
2263 lf_num--;
2264 i++;
2265 buf[j + lf_num] = '\r';
2266 }
2267 }
2268 assert(lf_num == 0);
2269 } else
2270 i = raw_read_stdin(buf, bufsize);
2271
2272 if (!s_quiet && !s_brief) {
2273 if ((i <= 0) || (buf[0] == 'Q')) {
2274 BIO_printf(bio_s_out, "DONE\n");
2275 (void)BIO_flush(bio_s_out);
2276 BIO_closesocket(s);
2277 close_accept_socket();
2278 ret = -11;
2279 goto err;
2280 }
2281 if ((i <= 0) || (buf[0] == 'q')) {
2282 BIO_printf(bio_s_out, "DONE\n");
2283 (void)BIO_flush(bio_s_out);
2284 if (SSL_version(con) != DTLS1_VERSION)
2285 BIO_closesocket(s);
2286 /*
2287 * close_accept_socket(); ret= -11;
2288 */
2289 goto err;
2290 }
2291 #ifndef OPENSSL_NO_HEARTBEATS
2292 if ((buf[0] == 'B') && ((buf[1] == '\n') || (buf[1] == '\r'))) {
2293 BIO_printf(bio_err, "HEARTBEATING\n");
2294 SSL_heartbeat(con);
2295 i = 0;
2296 continue;
2297 }
2298 #endif
2299 if ((buf[0] == 'r') && ((buf[1] == '\n') || (buf[1] == '\r'))) {
2300 SSL_renegotiate(con);
2301 i = SSL_do_handshake(con);
2302 printf("SSL_do_handshake -> %d\n", i);
2303 i = 0; /* 13; */
2304 continue;
2305 /*
2306 * strcpy(buf,"server side RE-NEGOTIATE\n");
2307 */
2308 }
2309 if ((buf[0] == 'R') && ((buf[1] == '\n') || (buf[1] == '\r'))) {
2310 SSL_set_verify(con,
2311 SSL_VERIFY_PEER | SSL_VERIFY_CLIENT_ONCE,
2312 NULL);
2313 SSL_renegotiate(con);
2314 i = SSL_do_handshake(con);
2315 printf("SSL_do_handshake -> %d\n", i);
2316 i = 0; /* 13; */
2317 continue;
2318 /*
2319 * strcpy(buf,"server side RE-NEGOTIATE asking for client
2320 * cert\n");
2321 */
2322 }
2323 if (buf[0] == 'P') {
2324 static const char *str = "Lets print some clear text\n";
2325 BIO_write(SSL_get_wbio(con), str, strlen(str));
2326 }
2327 if (buf[0] == 'S') {
2328 print_stats(bio_s_out, SSL_get_SSL_CTX(con));
2329 }
2330 }
2331 #ifdef CHARSET_EBCDIC
2332 ebcdic2ascii(buf, buf, i);
2333 #endif
2334 l = k = 0;
2335 for (;;) {
2336 /* should do a select for the write */
2337 #ifdef RENEG
2338 static count = 0;
2339 if (++count == 100) {
2340 count = 0;
2341 SSL_renegotiate(con);
2342 }
2343 #endif
2344 k = SSL_write(con, &(buf[l]), (unsigned int)i);
2345 #ifndef OPENSSL_NO_SRP
2346 while (SSL_get_error(con, k) == SSL_ERROR_WANT_X509_LOOKUP) {
2347 BIO_printf(bio_s_out, "LOOKUP renego during write\n");
2348 SRP_user_pwd_free(srp_callback_parm.user);
2349 srp_callback_parm.user =
2350 SRP_VBASE_get1_by_user(srp_callback_parm.vb,
2351 srp_callback_parm.login);
2352 if (srp_callback_parm.user)
2353 BIO_printf(bio_s_out, "LOOKUP done %s\n",
2354 srp_callback_parm.user->info);
2355 else
2356 BIO_printf(bio_s_out, "LOOKUP not successful\n");
2357 k = SSL_write(con, &(buf[l]), (unsigned int)i);
2358 }
2359 #endif
2360 switch (SSL_get_error(con, k)) {
2361 case SSL_ERROR_NONE:
2362 break;
2363 case SSL_ERROR_WANT_ASYNC:
2364 BIO_printf(bio_s_out, "Write BLOCK (Async)\n");
2365 (void)BIO_flush(bio_s_out);
2366 wait_for_async(con);
2367 break;
2368 case SSL_ERROR_WANT_WRITE:
2369 case SSL_ERROR_WANT_READ:
2370 case SSL_ERROR_WANT_X509_LOOKUP:
2371 BIO_printf(bio_s_out, "Write BLOCK\n");
2372 (void)BIO_flush(bio_s_out);
2373 break;
2374 case SSL_ERROR_WANT_ASYNC_JOB:
2375 /*
2376 * This shouldn't ever happen in s_server. Treat as an error
2377 */
2378 case SSL_ERROR_SYSCALL:
2379 case SSL_ERROR_SSL:
2380 BIO_printf(bio_s_out, "ERROR\n");
2381 (void)BIO_flush(bio_s_out);
2382 ERR_print_errors(bio_err);
2383 ret = 1;
2384 goto err;
2385 /* break; */
2386 case SSL_ERROR_ZERO_RETURN:
2387 BIO_printf(bio_s_out, "DONE\n");
2388 (void)BIO_flush(bio_s_out);
2389 ret = 1;
2390 goto err;
2391 }
2392 if (k > 0) {
2393 l += k;
2394 i -= k;
2395 }
2396 if (i <= 0)
2397 break;
2398 }
2399 }
2400 if (read_from_sslcon) {
2401 /*
2402 * init_ssl_connection handles all async events itself so if we're
2403 * waiting for async then we shouldn't go back into
2404 * init_ssl_connection
2405 */
2406 if ((!async || !SSL_waiting_for_async(con))
2407 && !SSL_is_init_finished(con)) {
2408 i = init_ssl_connection(con);
2409
2410 if (i < 0) {
2411 ret = 0;
2412 goto err;
2413 } else if (i == 0) {
2414 ret = 1;
2415 goto err;
2416 }
2417 } else {
2418 again:
2419 i = SSL_read(con, (char *)buf, bufsize);
2420 #ifndef OPENSSL_NO_SRP
2421 while (SSL_get_error(con, i) == SSL_ERROR_WANT_X509_LOOKUP) {
2422 BIO_printf(bio_s_out, "LOOKUP renego during read\n");
2423 SRP_user_pwd_free(srp_callback_parm.user);
2424 srp_callback_parm.user =
2425 SRP_VBASE_get1_by_user(srp_callback_parm.vb,
2426 srp_callback_parm.login);
2427 if (srp_callback_parm.user)
2428 BIO_printf(bio_s_out, "LOOKUP done %s\n",
2429 srp_callback_parm.user->info);
2430 else
2431 BIO_printf(bio_s_out, "LOOKUP not successful\n");
2432 i = SSL_read(con, (char *)buf, bufsize);
2433 }
2434 #endif
2435 switch (SSL_get_error(con, i)) {
2436 case SSL_ERROR_NONE:
2437 #ifdef CHARSET_EBCDIC
2438 ascii2ebcdic(buf, buf, i);
2439 #endif
2440 raw_write_stdout(buf, (unsigned int)i);
2441 (void)BIO_flush(bio_s_out);
2442 if (SSL_has_pending(con))
2443 goto again;
2444 break;
2445 case SSL_ERROR_WANT_ASYNC:
2446 BIO_printf(bio_s_out, "Read BLOCK (Async)\n");
2447 (void)BIO_flush(bio_s_out);
2448 wait_for_async(con);
2449 break;
2450 case SSL_ERROR_WANT_WRITE:
2451 case SSL_ERROR_WANT_READ:
2452 BIO_printf(bio_s_out, "Read BLOCK\n");
2453 (void)BIO_flush(bio_s_out);
2454 break;
2455 case SSL_ERROR_WANT_ASYNC_JOB:
2456 /*
2457 * This shouldn't ever happen in s_server. Treat as an error
2458 */
2459 case SSL_ERROR_SYSCALL:
2460 case SSL_ERROR_SSL:
2461 BIO_printf(bio_s_out, "ERROR\n");
2462 (void)BIO_flush(bio_s_out);
2463 ERR_print_errors(bio_err);
2464 ret = 1;
2465 goto err;
2466 case SSL_ERROR_ZERO_RETURN:
2467 BIO_printf(bio_s_out, "DONE\n");
2468 (void)BIO_flush(bio_s_out);
2469 ret = 1;
2470 goto err;
2471 }
2472 }
2473 }
2474 }
2475 err:
2476 if (con != NULL) {
2477 BIO_printf(bio_s_out, "shutting down SSL\n");
2478 SSL_set_shutdown(con, SSL_SENT_SHUTDOWN | SSL_RECEIVED_SHUTDOWN);
2479 SSL_free(con);
2480 }
2481 BIO_printf(bio_s_out, "CONNECTION CLOSED\n");
2482 OPENSSL_clear_free(buf, bufsize);
2483 if (ret >= 0)
2484 BIO_printf(bio_s_out, "ACCEPT\n");
2485 (void)BIO_flush(bio_s_out);
2486 return (ret);
2487 }
2488
2489 static void close_accept_socket(void)
2490 {
2491 BIO_printf(bio_err, "shutdown accept socket\n");
2492 if (accept_socket >= 0) {
2493 BIO_closesocket(accept_socket);
2494 }
2495 }
2496
2497 static int init_ssl_connection(SSL *con)
2498 {
2499 int i;
2500 const char *str;
2501 X509 *peer;
2502 long verify_err;
2503 char buf[BUFSIZ];
2504 #if !defined(OPENSSL_NO_NEXTPROTONEG)
2505 const unsigned char *next_proto_neg;
2506 unsigned next_proto_neg_len;
2507 #endif
2508 unsigned char *exportedkeymat;
2509 int retry = 0;
2510
2511 #ifndef OPENSSL_NO_DTLS
2512 if (dtlslisten) {
2513 BIO_ADDR *client = NULL;
2514
2515 if ((client = BIO_ADDR_new()) == NULL) {
2516 BIO_printf(bio_err, "ERROR - memory\n");
2517 return 0;
2518 }
2519 i = DTLSv1_listen(con, client);
2520 if (i > 0) {
2521 BIO *wbio;
2522 int fd = -1;
2523
2524 wbio = SSL_get_wbio(con);
2525 if (wbio) {
2526 BIO_get_fd(wbio, &fd);
2527 }
2528
2529 if (!wbio || BIO_connect(fd, client, 0) == 0) {
2530 BIO_printf(bio_err, "ERROR - unable to connect\n");
2531 BIO_ADDR_free(client);
2532 return 0;
2533 }
2534 BIO_ADDR_free(client);
2535 dtlslisten = 0;
2536 i = SSL_accept(con);
2537 } else {
2538 BIO_ADDR_free(client);
2539 }
2540 } else
2541 #endif
2542
2543 do {
2544 i = SSL_accept(con);
2545
2546 if (i <= 0)
2547 retry = BIO_sock_should_retry(i);
2548 #ifdef CERT_CB_TEST_RETRY
2549 {
2550 while (i <= 0
2551 && SSL_get_error(con, i) == SSL_ERROR_WANT_X509_LOOKUP
2552 && SSL_get_state(con) == TLS_ST_SR_CLNT_HELLO) {
2553 BIO_printf(bio_err,
2554 "LOOKUP from certificate callback during accept\n");
2555 i = SSL_accept(con);
2556 if (i <= 0)
2557 retry = BIO_sock_should_retry(i);
2558 }
2559 }
2560 #endif
2561
2562 #ifndef OPENSSL_NO_SRP
2563 while (i <= 0
2564 && SSL_get_error(con, i) == SSL_ERROR_WANT_X509_LOOKUP) {
2565 BIO_printf(bio_s_out, "LOOKUP during accept %s\n",
2566 srp_callback_parm.login);
2567 SRP_user_pwd_free(srp_callback_parm.user);
2568 srp_callback_parm.user =
2569 SRP_VBASE_get1_by_user(srp_callback_parm.vb,
2570 srp_callback_parm.login);
2571 if (srp_callback_parm.user)
2572 BIO_printf(bio_s_out, "LOOKUP done %s\n",
2573 srp_callback_parm.user->info);
2574 else
2575 BIO_printf(bio_s_out, "LOOKUP not successful\n");
2576 i = SSL_accept(con);
2577 if (i <= 0)
2578 retry = BIO_sock_should_retry(i);
2579 }
2580 #endif
2581 } while (i < 0 && SSL_waiting_for_async(con));
2582
2583 if (i <= 0) {
2584 if ((dtlslisten && i == 0)
2585 || (!dtlslisten && retry)) {
2586 BIO_printf(bio_s_out, "DELAY\n");
2587 return (1);
2588 }
2589
2590 BIO_printf(bio_err, "ERROR\n");
2591
2592 verify_err = SSL_get_verify_result(con);
2593 if (verify_err != X509_V_OK) {
2594 BIO_printf(bio_err, "verify error:%s\n",
2595 X509_verify_cert_error_string(verify_err));
2596 }
2597 /* Always print any error messages */
2598 ERR_print_errors(bio_err);
2599 return (0);
2600 }
2601
2602 if (s_brief)
2603 print_ssl_summary(con);
2604
2605 PEM_write_bio_SSL_SESSION(bio_s_out, SSL_get_session(con));
2606
2607 peer = SSL_get_peer_certificate(con);
2608 if (peer != NULL) {
2609 BIO_printf(bio_s_out, "Client certificate\n");
2610 PEM_write_bio_X509(bio_s_out, peer);
2611 X509_NAME_oneline(X509_get_subject_name(peer), buf, sizeof buf);
2612 BIO_printf(bio_s_out, "subject=%s\n", buf);
2613 X509_NAME_oneline(X509_get_issuer_name(peer), buf, sizeof buf);
2614 BIO_printf(bio_s_out, "issuer=%s\n", buf);
2615 X509_free(peer);
2616 peer = NULL;
2617 }
2618
2619 if (SSL_get_shared_ciphers(con, buf, sizeof buf) != NULL)
2620 BIO_printf(bio_s_out, "Shared ciphers:%s\n", buf);
2621 str = SSL_CIPHER_get_name(SSL_get_current_cipher(con));
2622 ssl_print_sigalgs(bio_s_out, con);
2623 #ifndef OPENSSL_NO_EC
2624 ssl_print_point_formats(bio_s_out, con);
2625 ssl_print_groups(bio_s_out, con, 0);
2626 #endif
2627 BIO_printf(bio_s_out, "CIPHER is %s\n", (str != NULL) ? str : "(NONE)");
2628
2629 #if !defined(OPENSSL_NO_NEXTPROTONEG)
2630 SSL_get0_next_proto_negotiated(con, &next_proto_neg, &next_proto_neg_len);
2631 if (next_proto_neg) {
2632 BIO_printf(bio_s_out, "NEXTPROTO is ");
2633 BIO_write(bio_s_out, next_proto_neg, next_proto_neg_len);
2634 BIO_printf(bio_s_out, "\n");
2635 }
2636 #endif
2637 #ifndef OPENSSL_NO_SRTP
2638 {
2639 SRTP_PROTECTION_PROFILE *srtp_profile
2640 = SSL_get_selected_srtp_profile(con);
2641
2642 if (srtp_profile)
2643 BIO_printf(bio_s_out, "SRTP Extension negotiated, profile=%s\n",
2644 srtp_profile->name);
2645 }
2646 #endif
2647 if (SSL_session_reused(con))
2648 BIO_printf(bio_s_out, "Reused session-id\n");
2649 BIO_printf(bio_s_out, "Secure Renegotiation IS%s supported\n",
2650 SSL_get_secure_renegotiation_support(con) ? "" : " NOT");
2651 if (keymatexportlabel != NULL) {
2652 BIO_printf(bio_s_out, "Keying material exporter:\n");
2653 BIO_printf(bio_s_out, " Label: '%s'\n", keymatexportlabel);
2654 BIO_printf(bio_s_out, " Length: %i bytes\n", keymatexportlen);
2655 exportedkeymat = app_malloc(keymatexportlen, "export key");
2656 if (!SSL_export_keying_material(con, exportedkeymat,
2657 keymatexportlen,
2658 keymatexportlabel,
2659 strlen(keymatexportlabel),
2660 NULL, 0, 0)) {
2661 BIO_printf(bio_s_out, " Error\n");
2662 } else {
2663 BIO_printf(bio_s_out, " Keying material: ");
2664 for (i = 0; i < keymatexportlen; i++)
2665 BIO_printf(bio_s_out, "%02X", exportedkeymat[i]);
2666 BIO_printf(bio_s_out, "\n");
2667 }
2668 OPENSSL_free(exportedkeymat);
2669 }
2670
2671 (void)BIO_flush(bio_s_out);
2672 return (1);
2673 }
2674
2675 #ifndef OPENSSL_NO_DH
2676 static DH *load_dh_param(const char *dhfile)
2677 {
2678 DH *ret = NULL;
2679 BIO *bio;
2680
2681 if ((bio = BIO_new_file(dhfile, "r")) == NULL)
2682 goto err;
2683 ret = PEM_read_bio_DHparams(bio, NULL, NULL, NULL);
2684 err:
2685 BIO_free(bio);
2686 return (ret);
2687 }
2688 #endif
2689
2690 static int www_body(int s, int stype, unsigned char *context)
2691 {
2692 char *buf = NULL;
2693 int ret = 1;
2694 int i, j, k, dot;
2695 SSL *con;
2696 const SSL_CIPHER *c;
2697 BIO *io, *ssl_bio, *sbio;
2698 #ifdef RENEG
2699 int total_bytes = 0;
2700 #endif
2701 int width;
2702 fd_set readfds;
2703
2704 /* Set width for a select call if needed */
2705 width = s + 1;
2706
2707 buf = app_malloc(bufsize, "server www buffer");
2708 io = BIO_new(BIO_f_buffer());
2709 ssl_bio = BIO_new(BIO_f_ssl());
2710 if ((io == NULL) || (ssl_bio == NULL))
2711 goto err;
2712
2713 if (s_nbio) {
2714 if (!BIO_socket_nbio(s, 1))
2715 ERR_print_errors(bio_err);
2716 else if (!s_quiet)
2717 BIO_printf(bio_err, "Turned on non blocking io\n");
2718 }
2719
2720 /* lets make the output buffer a reasonable size */
2721 if (!BIO_set_write_buffer_size(io, bufsize))
2722 goto err;
2723
2724 if ((con = SSL_new(ctx)) == NULL)
2725 goto err;
2726
2727 if (s_tlsextdebug) {
2728 SSL_set_tlsext_debug_callback(con, tlsext_cb);
2729 SSL_set_tlsext_debug_arg(con, bio_s_out);
2730 }
2731
2732 if (context
2733 && !SSL_set_session_id_context(con, context,
2734 strlen((char *)context)))
2735 goto err;
2736
2737 sbio = BIO_new_socket(s, BIO_NOCLOSE);
2738 if (s_nbio_test) {
2739 BIO *test;
2740
2741 test = BIO_new(BIO_f_nbio_test());
2742 sbio = BIO_push(test, sbio);
2743 }
2744 SSL_set_bio(con, sbio, sbio);
2745 SSL_set_accept_state(con);
2746
2747 /* SSL_set_fd(con,s); */
2748 BIO_set_ssl(ssl_bio, con, BIO_CLOSE);
2749 BIO_push(io, ssl_bio);
2750 #ifdef CHARSET_EBCDIC
2751 io = BIO_push(BIO_new(BIO_f_ebcdic_filter()), io);
2752 #endif
2753
2754 if (s_debug) {
2755 BIO_set_callback(SSL_get_rbio(con), bio_dump_callback);
2756 BIO_set_callback_arg(SSL_get_rbio(con), (char *)bio_s_out);
2757 }
2758 if (s_msg) {
2759 #ifndef OPENSSL_NO_SSL_TRACE
2760 if (s_msg == 2)
2761 SSL_set_msg_callback(con, SSL_trace);
2762 else
2763 #endif
2764 SSL_set_msg_callback(con, msg_cb);
2765 SSL_set_msg_callback_arg(con, bio_s_msg ? bio_s_msg : bio_s_out);
2766 }
2767
2768 for (;;) {
2769 i = BIO_gets(io, buf, bufsize - 1);
2770 if (i < 0) { /* error */
2771 if (!BIO_should_retry(io) && !SSL_waiting_for_async(con)) {
2772 if (!s_quiet)
2773 ERR_print_errors(bio_err);
2774 goto err;
2775 } else {
2776 BIO_printf(bio_s_out, "read R BLOCK\n");
2777 #ifndef OPENSSL_NO_SRP
2778 if (BIO_should_io_special(io)
2779 && BIO_get_retry_reason(io) == BIO_RR_SSL_X509_LOOKUP) {
2780 BIO_printf(bio_s_out, "LOOKUP renego during read\n");
2781 SRP_user_pwd_free(srp_callback_parm.user);
2782 srp_callback_parm.user =
2783 SRP_VBASE_get1_by_user(srp_callback_parm.vb,
2784 srp_callback_parm.login);
2785 if (srp_callback_parm.user)
2786 BIO_printf(bio_s_out, "LOOKUP done %s\n",
2787 srp_callback_parm.user->info);
2788 else
2789 BIO_printf(bio_s_out, "LOOKUP not successful\n");
2790 continue;
2791 }
2792 #endif
2793 #if !defined(OPENSSL_SYS_MSDOS)
2794 sleep(1);
2795 #endif
2796 continue;
2797 }
2798 } else if (i == 0) { /* end of input */
2799 ret = 1;
2800 goto end;
2801 }
2802
2803 /* else we have data */
2804 if (((www == 1) && (strncmp("GET ", buf, 4) == 0)) ||
2805 ((www == 2) && (strncmp("GET /stats ", buf, 11) == 0))) {
2806 char *p;
2807 X509 *peer = NULL;
2808 STACK_OF(SSL_CIPHER) *sk;
2809 static const char *space = " ";
2810
2811 if (www == 1 && strncmp("GET /reneg", buf, 10) == 0) {
2812 if (strncmp("GET /renegcert", buf, 14) == 0)
2813 SSL_set_verify(con,
2814 SSL_VERIFY_PEER | SSL_VERIFY_CLIENT_ONCE,
2815 NULL);
2816 i = SSL_renegotiate(con);
2817 BIO_printf(bio_s_out, "SSL_renegotiate -> %d\n", i);
2818 /* Send the HelloRequest */
2819 i = SSL_do_handshake(con);
2820 if (i <= 0) {
2821 BIO_printf(bio_s_out, "SSL_do_handshake() Retval %d\n",
2822 SSL_get_error(con, i));
2823 ERR_print_errors(bio_err);
2824 goto err;
2825 }
2826 /* Wait for a ClientHello to come back */
2827 FD_ZERO(&readfds);
2828 openssl_fdset(s, &readfds);
2829 i = select(width, (void *)&readfds, NULL, NULL, NULL);
2830 if (i <= 0 || !FD_ISSET(s, &readfds)) {
2831 BIO_printf(bio_s_out,
2832 "Error waiting for client response\n");
2833 ERR_print_errors(bio_err);
2834 goto err;
2835 }
2836 /*
2837 * We're not actually expecting any data here and we ignore
2838 * any that is sent. This is just to force the handshake that
2839 * we're expecting to come from the client. If they haven't
2840 * sent one there's not much we can do.
2841 */
2842 BIO_gets(io, buf, bufsize - 1);
2843 }
2844
2845 BIO_puts(io,
2846 "HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n");
2847 BIO_puts(io, "<HTML><BODY BGCOLOR=\"#ffffff\">\n");
2848 BIO_puts(io, "<pre>\n");
2849 /* BIO_puts(io, OpenSSL_version(OPENSSL_VERSION)); */
2850 BIO_puts(io, "\n");
2851 for (i = 0; i < local_argc; i++) {
2852 const char *myp;
2853 for (myp = local_argv[i]; *myp; myp++)
2854 switch (*myp) {
2855 case '<':
2856 BIO_puts(io, "&lt;");
2857 break;
2858 case '>':
2859 BIO_puts(io, "&gt;");
2860 break;
2861 case '&':
2862 BIO_puts(io, "&amp;");
2863 break;
2864 default:
2865 BIO_write(io, myp, 1);
2866 break;
2867 }
2868 BIO_write(io, " ", 1);
2869 }
2870 BIO_puts(io, "\n");
2871
2872 BIO_printf(io,
2873 "Secure Renegotiation IS%s supported\n",
2874 SSL_get_secure_renegotiation_support(con) ?
2875 "" : " NOT");
2876
2877 /*
2878 * The following is evil and should not really be done
2879 */
2880 BIO_printf(io, "Ciphers supported in s_server binary\n");
2881 sk = SSL_get_ciphers(con);
2882 j = sk_SSL_CIPHER_num(sk);
2883 for (i = 0; i < j; i++) {
2884 c = sk_SSL_CIPHER_value(sk, i);
2885 BIO_printf(io, "%-11s:%-25s ",
2886 SSL_CIPHER_get_version(c), SSL_CIPHER_get_name(c));
2887 if ((((i + 1) % 2) == 0) && (i + 1 != j))
2888 BIO_puts(io, "\n");
2889 }
2890 BIO_puts(io, "\n");
2891 p = SSL_get_shared_ciphers(con, buf, bufsize);
2892 if (p != NULL) {
2893 BIO_printf(io,
2894 "---\nCiphers common between both SSL end points:\n");
2895 j = i = 0;
2896 while (*p) {
2897 if (*p == ':') {
2898 BIO_write(io, space, 26 - j);
2899 i++;
2900 j = 0;
2901 BIO_write(io, ((i % 3) ? " " : "\n"), 1);
2902 } else {
2903 BIO_write(io, p, 1);
2904 j++;
2905 }
2906 p++;
2907 }
2908 BIO_puts(io, "\n");
2909 }
2910 ssl_print_sigalgs(io, con);
2911 #ifndef OPENSSL_NO_EC
2912 ssl_print_groups(io, con, 0);
2913 #endif
2914 BIO_printf(io, (SSL_session_reused(con)
2915 ? "---\nReused, " : "---\nNew, "));
2916 c = SSL_get_current_cipher(con);
2917 BIO_printf(io, "%s, Cipher is %s\n",
2918 SSL_CIPHER_get_version(c), SSL_CIPHER_get_name(c));
2919 SSL_SESSION_print(io, SSL_get_session(con));
2920 BIO_printf(io, "---\n");
2921 print_stats(io, SSL_get_SSL_CTX(con));
2922 BIO_printf(io, "---\n");
2923 peer = SSL_get_peer_certificate(con);
2924 if (peer != NULL) {
2925 BIO_printf(io, "Client certificate\n");
2926 X509_print(io, peer);
2927 PEM_write_bio_X509(io, peer);
2928 X509_free(peer);
2929 peer = NULL;
2930 } else
2931 BIO_puts(io, "no client certificate available\n");
2932 BIO_puts(io, "</BODY></HTML>\r\n\r\n");
2933 break;
2934 } else if ((www == 2 || www == 3)
2935 && (strncmp("GET /", buf, 5) == 0)) {
2936 BIO *file;
2937 char *p, *e;
2938 static const char *text =
2939 "HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n";
2940
2941 /* skip the '/' */
2942 p = &(buf[5]);
2943
2944 dot = 1;
2945 for (e = p; *e != '\0'; e++) {
2946 if (e[0] == ' ')
2947 break;
2948
2949 switch (dot) {
2950 case 1:
2951 dot = (e[0] == '.') ? 2 : 0;
2952 break;
2953 case 2:
2954 dot = (e[0] == '.') ? 3 : 0;
2955 break;
2956 case 3:
2957 dot = (e[0] == '/') ? -1 : 0;
2958 break;
2959 }
2960 if (dot == 0)
2961 dot = (e[0] == '/') ? 1 : 0;
2962 }
2963 dot = (dot == 3) || (dot == -1); /* filename contains ".."
2964 * component */
2965
2966 if (*e == '\0') {
2967 BIO_puts(io, text);
2968 BIO_printf(io, "'%s' is an invalid file name\r\n", p);
2969 break;
2970 }
2971 *e = '\0';
2972
2973 if (dot) {
2974 BIO_puts(io, text);
2975 BIO_printf(io, "'%s' contains '..' reference\r\n", p);
2976 break;
2977 }
2978
2979 if (*p == '/') {
2980 BIO_puts(io, text);
2981 BIO_printf(io, "'%s' is an invalid path\r\n", p);
2982 break;
2983 }
2984
2985 /* if a directory, do the index thang */
2986 if (app_isdir(p) > 0) {
2987 BIO_puts(io, text);
2988 BIO_printf(io, "'%s' is a directory\r\n", p);
2989 break;
2990 }
2991
2992 if ((file = BIO_new_file(p, "r")) == NULL) {
2993 BIO_puts(io, text);
2994 BIO_printf(io, "Error opening '%s'\r\n", p);
2995 ERR_print_errors(io);
2996 break;
2997 }
2998
2999 if (!s_quiet)
3000 BIO_printf(bio_err, "FILE:%s\n", p);
3001
3002 if (www == 2) {
3003 i = strlen(p);
3004 if (((i > 5) && (strcmp(&(p[i - 5]), ".html") == 0)) ||
3005 ((i > 4) && (strcmp(&(p[i - 4]), ".php") == 0)) ||
3006 ((i > 4) && (strcmp(&(p[i - 4]), ".htm") == 0)))
3007 BIO_puts(io,
3008 "HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n");
3009 else
3010 BIO_puts(io,
3011 "HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n");
3012 }
3013 /* send the file */
3014 for (;;) {
3015 i = BIO_read(file, buf, bufsize);
3016 if (i <= 0)
3017 break;
3018
3019 #ifdef RENEG
3020 total_bytes += i;
3021 BIO_printf(bio_err, "%d\n", i);
3022 if (total_bytes > 3 * 1024) {
3023 total_bytes = 0;
3024 BIO_printf(bio_err, "RENEGOTIATE\n");
3025 SSL_renegotiate(con);
3026 }
3027 #endif
3028
3029 for (j = 0; j < i;) {
3030 #ifdef RENEG
3031 static count = 0;
3032 if (++count == 13) {
3033 SSL_renegotiate(con);
3034 }
3035 #endif
3036 k = BIO_write(io, &(buf[j]), i - j);
3037 if (k <= 0) {
3038 if (!BIO_should_retry(io)
3039 && !SSL_waiting_for_async(con))
3040 goto write_error;
3041 else {
3042 BIO_printf(bio_s_out, "rwrite W BLOCK\n");
3043 }
3044 } else {
3045 j += k;
3046 }
3047 }
3048 }
3049 write_error:
3050 BIO_free(file);
3051 break;
3052 }
3053 }
3054
3055 for (;;) {
3056 i = (int)BIO_flush(io);
3057 if (i <= 0) {
3058 if (!BIO_should_retry(io))
3059 break;
3060 } else
3061 break;
3062 }
3063 end:
3064 /* make sure we re-use sessions */
3065 SSL_set_shutdown(con, SSL_SENT_SHUTDOWN | SSL_RECEIVED_SHUTDOWN);
3066
3067 err:
3068 if (ret >= 0)
3069 BIO_printf(bio_s_out, "ACCEPT\n");
3070 OPENSSL_free(buf);
3071 BIO_free_all(io);
3072 return (ret);
3073 }
3074
3075 static int rev_body(int s, int stype, unsigned char *context)
3076 {
3077 char *buf = NULL;
3078 int i;
3079 int ret = 1;
3080 SSL *con;
3081 BIO *io, *ssl_bio, *sbio;
3082
3083 buf = app_malloc(bufsize, "server rev buffer");
3084 io = BIO_new(BIO_f_buffer());
3085 ssl_bio = BIO_new(BIO_f_ssl());
3086 if ((io == NULL) || (ssl_bio == NULL))
3087 goto err;
3088
3089 /* lets make the output buffer a reasonable size */
3090 if (!BIO_set_write_buffer_size(io, bufsize))
3091 goto err;
3092
3093 if ((con = SSL_new(ctx)) == NULL)
3094 goto err;
3095
3096 if (s_tlsextdebug) {
3097 SSL_set_tlsext_debug_callback(con, tlsext_cb);
3098 SSL_set_tlsext_debug_arg(con, bio_s_out);
3099 }
3100 if (context
3101 && !SSL_set_session_id_context(con, context,
3102 strlen((char *)context))) {
3103 ERR_print_errors(bio_err);
3104 goto err;
3105 }
3106
3107 sbio = BIO_new_socket(s, BIO_NOCLOSE);
3108 SSL_set_bio(con, sbio, sbio);
3109 SSL_set_accept_state(con);
3110
3111 BIO_set_ssl(ssl_bio, con, BIO_CLOSE);
3112 BIO_push(io, ssl_bio);
3113 #ifdef CHARSET_EBCDIC
3114 io = BIO_push(BIO_new(BIO_f_ebcdic_filter()), io);
3115 #endif
3116
3117 if (s_debug) {
3118 BIO_set_callback(SSL_get_rbio(con), bio_dump_callback);
3119 BIO_set_callback_arg(SSL_get_rbio(con), (char *)bio_s_out);
3120 }
3121 if (s_msg) {
3122 #ifndef OPENSSL_NO_SSL_TRACE
3123 if (s_msg == 2)
3124 SSL_set_msg_callback(con, SSL_trace);
3125 else
3126 #endif
3127 SSL_set_msg_callback(con, msg_cb);
3128 SSL_set_msg_callback_arg(con, bio_s_msg ? bio_s_msg : bio_s_out);
3129 }
3130
3131 for (;;) {
3132 i = BIO_do_handshake(io);
3133 if (i > 0)
3134 break;
3135 if (!BIO_should_retry(io)) {
3136 BIO_puts(bio_err, "CONNECTION FAILURE\n");
3137 ERR_print_errors(bio_err);
3138 goto end;
3139 }
3140 #ifndef OPENSSL_NO_SRP
3141 if (BIO_should_io_special(io)
3142 && BIO_get_retry_reason(io) == BIO_RR_SSL_X509_LOOKUP) {
3143 BIO_printf(bio_s_out, "LOOKUP renego during accept\n");
3144 SRP_user_pwd_free(srp_callback_parm.user);
3145 srp_callback_parm.user =
3146 SRP_VBASE_get1_by_user(srp_callback_parm.vb,
3147 srp_callback_parm.login);
3148 if (srp_callback_parm.user)
3149 BIO_printf(bio_s_out, "LOOKUP done %s\n",
3150 srp_callback_parm.user->info);
3151 else
3152 BIO_printf(bio_s_out, "LOOKUP not successful\n");
3153 continue;
3154 }
3155 #endif
3156 }
3157 BIO_printf(bio_err, "CONNECTION ESTABLISHED\n");
3158 print_ssl_summary(con);
3159
3160 for (;;) {
3161 i = BIO_gets(io, buf, bufsize - 1);
3162 if (i < 0) { /* error */
3163 if (!BIO_should_retry(io)) {
3164 if (!s_quiet)
3165 ERR_print_errors(bio_err);
3166 goto err;
3167 } else {
3168 BIO_printf(bio_s_out, "read R BLOCK\n");
3169 #ifndef OPENSSL_NO_SRP
3170 if (BIO_should_io_special(io)
3171 && BIO_get_retry_reason(io) == BIO_RR_SSL_X509_LOOKUP) {
3172 BIO_printf(bio_s_out, "LOOKUP renego during read\n");
3173 SRP_user_pwd_free(srp_callback_parm.user);
3174 srp_callback_parm.user =
3175 SRP_VBASE_get1_by_user(srp_callback_parm.vb,
3176 srp_callback_parm.login);
3177 if (srp_callback_parm.user)
3178 BIO_printf(bio_s_out, "LOOKUP done %s\n",
3179 srp_callback_parm.user->info);
3180 else
3181 BIO_printf(bio_s_out, "LOOKUP not successful\n");
3182 continue;
3183 }
3184 #endif
3185 #if !defined(OPENSSL_SYS_MSDOS)
3186 sleep(1);
3187 #endif
3188 continue;
3189 }
3190 } else if (i == 0) { /* end of input */
3191 ret = 1;
3192 BIO_printf(bio_err, "CONNECTION CLOSED\n");
3193 goto end;
3194 } else {
3195 char *p = buf + i - 1;
3196 while (i && (*p == '\n' || *p == '\r')) {
3197 p--;
3198 i--;
3199 }
3200 if (!s_ign_eof && (i == 5) && (strncmp(buf, "CLOSE", 5) == 0)) {
3201 ret = 1;
3202 BIO_printf(bio_err, "CONNECTION CLOSED\n");
3203 goto end;
3204 }
3205 BUF_reverse((unsigned char *)buf, NULL, i);
3206 buf[i] = '\n';
3207 BIO_write(io, buf, i + 1);
3208 for (;;) {
3209 i = BIO_flush(io);
3210 if (i > 0)
3211 break;
3212 if (!BIO_should_retry(io))
3213 goto end;
3214 }
3215 }
3216 }
3217 end:
3218 /* make sure we re-use sessions */
3219 SSL_set_shutdown(con, SSL_SENT_SHUTDOWN | SSL_RECEIVED_SHUTDOWN);
3220
3221 err:
3222
3223 OPENSSL_free(buf);
3224 BIO_free_all(io);
3225 return (ret);
3226 }
3227
3228 #define MAX_SESSION_ID_ATTEMPTS 10
3229 static int generate_session_id(const SSL *ssl, unsigned char *id,
3230 unsigned int *id_len)
3231 {
3232 unsigned int count = 0;
3233 do {
3234 if (RAND_bytes(id, *id_len) <= 0)
3235 return 0;
3236 /*
3237 * Prefix the session_id with the required prefix. NB: If our prefix
3238 * is too long, clip it - but there will be worse effects anyway, eg.
3239 * the server could only possibly create 1 session ID (ie. the
3240 * prefix!) so all future session negotiations will fail due to
3241 * conflicts.
3242 */
3243 memcpy(id, session_id_prefix,
3244 (strlen(session_id_prefix) < *id_len) ?
3245 strlen(session_id_prefix) : *id_len);
3246 }
3247 while (SSL_has_matching_session_id(ssl, id, *id_len) &&
3248 (++count < MAX_SESSION_ID_ATTEMPTS));
3249 if (count >= MAX_SESSION_ID_ATTEMPTS)
3250 return 0;
3251 return 1;
3252 }
3253
3254 /*
3255 * By default s_server uses an in-memory cache which caches SSL_SESSION
3256 * structures without any serialisation. This hides some bugs which only
3257 * become apparent in deployed servers. By implementing a basic external
3258 * session cache some issues can be debugged using s_server.
3259 */
3260
3261 typedef struct simple_ssl_session_st {
3262 unsigned char *id;
3263 unsigned int idlen;
3264 unsigned char *der;
3265 int derlen;
3266 struct simple_ssl_session_st *next;
3267 } simple_ssl_session;
3268
3269 static simple_ssl_session *first = NULL;
3270
3271 static int add_session(SSL *ssl, SSL_SESSION *session)
3272 {
3273 simple_ssl_session *sess = app_malloc(sizeof(*sess), "get session");
3274 unsigned char *p;
3275
3276 SSL_SESSION_get_id(session, &sess->idlen);
3277 sess->derlen = i2d_SSL_SESSION(session, NULL);
3278 if (sess->derlen < 0) {
3279 BIO_printf(bio_err, "Error encoding session\n");
3280 OPENSSL_free(sess);
3281 return 0;
3282 }
3283
3284 sess->id = OPENSSL_memdup(SSL_SESSION_get_id(session, NULL), sess->idlen);
3285 sess->der = app_malloc(sess->derlen, "get session buffer");
3286 if (!sess->id) {
3287 BIO_printf(bio_err, "Out of memory adding to external cache\n");
3288 OPENSSL_free(sess->id);
3289 OPENSSL_free(sess->der);
3290 OPENSSL_free(sess);
3291 return 0;
3292 }
3293 p = sess->der;
3294
3295 /* Assume it still works. */
3296 if (i2d_SSL_SESSION(session, &p) != sess->derlen) {
3297 BIO_printf(bio_err, "Unexpected session encoding length\n");
3298 OPENSSL_free(sess->id);
3299 OPENSSL_free(sess->der);
3300 OPENSSL_free(sess);
3301 return 0;
3302 }
3303
3304 sess->next = first;
3305 first = sess;
3306 BIO_printf(bio_err, "New session added to external cache\n");
3307 return 0;
3308 }
3309
3310 static SSL_SESSION *get_session(SSL *ssl, const unsigned char *id, int idlen,
3311 int *do_copy)
3312 {
3313 simple_ssl_session *sess;
3314 *do_copy = 0;
3315 for (sess = first; sess; sess = sess->next) {
3316 if (idlen == (int)sess->idlen && !memcmp(sess->id, id, idlen)) {
3317 const unsigned char *p = sess->der;
3318 BIO_printf(bio_err, "Lookup session: cache hit\n");
3319 return d2i_SSL_SESSION(NULL, &p, sess->derlen);
3320 }
3321 }
3322 BIO_printf(bio_err, "Lookup session: cache miss\n");
3323 return NULL;
3324 }
3325
3326 static void del_session(SSL_CTX *sctx, SSL_SESSION *session)
3327 {
3328 simple_ssl_session *sess, *prev = NULL;
3329 const unsigned char *id;
3330 unsigned int idlen;
3331 id = SSL_SESSION_get_id(session, &idlen);
3332 for (sess = first; sess; sess = sess->next) {
3333 if (idlen == sess->idlen && !memcmp(sess->id, id, idlen)) {
3334 if (prev)
3335 prev->next = sess->next;
3336 else
3337 first = sess->next;
3338 OPENSSL_free(sess->id);
3339 OPENSSL_free(sess->der);
3340 OPENSSL_free(sess);
3341 return;
3342 }
3343 prev = sess;
3344 }
3345 }
3346
3347 static void init_session_cache_ctx(SSL_CTX *sctx)
3348 {
3349 SSL_CTX_set_session_cache_mode(sctx,
3350 SSL_SESS_CACHE_NO_INTERNAL |
3351 SSL_SESS_CACHE_SERVER);
3352 SSL_CTX_sess_set_new_cb(sctx, add_session);
3353 SSL_CTX_sess_set_get_cb(sctx, get_session);
3354 SSL_CTX_sess_set_remove_cb(sctx, del_session);
3355 }
3356
3357 static void free_sessions(void)
3358 {
3359 simple_ssl_session *sess, *tsess;
3360 for (sess = first; sess;) {
3361 OPENSSL_free(sess->id);
3362 OPENSSL_free(sess->der);
3363 tsess = sess;
3364 sess = sess->next;
3365 OPENSSL_free(tsess);
3366 }
3367 first = NULL;
3368 }
3369
3370 #endif /* OPENSSL_NO_SOCK */
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