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1 /*
2 * Copyright 1995-2021 The OpenSSL Project Authors. All Rights Reserved.
3 * Copyright (c) 2002, Oracle and/or its affiliates. All rights reserved
4 * Copyright 2005 Nokia. All rights reserved.
5 *
6 * Licensed under the Apache License 2.0 (the "License"). You may not use
7 * this file except in compliance with the License. You can obtain a copy
8 * in the file LICENSE in the source distribution or at
9 * https://www.openssl.org/source/license.html
10 */
11
12 #include <ctype.h>
13 #include <stdio.h>
14 #include <stdlib.h>
15 #include <string.h>
16 #if defined(_WIN32)
17 /* Included before async.h to avoid some warnings */
18 # include <windows.h>
19 #endif
20
21 #include <openssl/e_os2.h>
22 #include <openssl/async.h>
23 #include <openssl/ssl.h>
24 #include <openssl/decoder.h>
25
26 #ifndef OPENSSL_NO_SOCK
27
28 /*
29 * With IPv6, it looks like Digital has mixed up the proper order of
30 * recursive header file inclusion, resulting in the compiler complaining
31 * that u_int isn't defined, but only if _POSIX_C_SOURCE is defined, which is
32 * needed to have fileno() declared correctly... So let's define u_int
33 */
34 #if defined(OPENSSL_SYS_VMS_DECC) && !defined(__U_INT)
35 # define __U_INT
36 typedef unsigned int u_int;
37 #endif
38
39 #include <openssl/bn.h>
40 #include "apps.h"
41 #include "progs.h"
42 #include <openssl/err.h>
43 #include <openssl/pem.h>
44 #include <openssl/x509.h>
45 #include <openssl/ssl.h>
46 #include <openssl/rand.h>
47 #include <openssl/ocsp.h>
48 #ifndef OPENSSL_NO_DH
49 # include <openssl/dh.h>
50 #endif
51 #include <openssl/rsa.h>
52 #include "s_apps.h"
53 #include "timeouts.h"
54 #ifdef CHARSET_EBCDIC
55 #include <openssl/ebcdic.h>
56 #endif
57 #include "internal/sockets.h"
58
59 static int not_resumable_sess_cb(SSL *s, int is_forward_secure);
60 static int sv_body(int s, int stype, int prot, unsigned char *context);
61 static int www_body(int s, int stype, int prot, unsigned char *context);
62 static int rev_body(int s, int stype, int prot, unsigned char *context);
63 static void close_accept_socket(void);
64 static int init_ssl_connection(SSL *s);
65 static void print_stats(BIO *bp, SSL_CTX *ctx);
66 static int generate_session_id(SSL *ssl, unsigned char *id,
67 unsigned int *id_len);
68 static void init_session_cache_ctx(SSL_CTX *sctx);
69 static void free_sessions(void);
70 static void print_connection_info(SSL *con);
71
72 static const int bufsize = 16 * 1024;
73 static int accept_socket = -1;
74
75 #define TEST_CERT "server.pem"
76 #define TEST_CERT2 "server2.pem"
77
78 static int s_nbio = 0;
79 static int s_nbio_test = 0;
80 static int s_crlf = 0;
81 static SSL_CTX *ctx = NULL;
82 static SSL_CTX *ctx2 = NULL;
83 static int www = 0;
84
85 static BIO *bio_s_out = NULL;
86 static BIO *bio_s_msg = NULL;
87 static int s_debug = 0;
88 static int s_tlsextdebug = 0;
89 static int s_msg = 0;
90 static int s_quiet = 0;
91 static int s_ign_eof = 0;
92 static int s_brief = 0;
93
94 static char *keymatexportlabel = NULL;
95 static int keymatexportlen = 20;
96
97 static int async = 0;
98
99 static int use_sendfile = 0;
100
101 static const char *session_id_prefix = NULL;
102
103 #ifndef OPENSSL_NO_DTLS
104 static int enable_timeouts = 0;
105 static long socket_mtu;
106 #endif
107
108 /*
109 * We define this but make it always be 0 in no-dtls builds to simplify the
110 * code.
111 */
112 static int dtlslisten = 0;
113 static int stateless = 0;
114
115 static int early_data = 0;
116 static SSL_SESSION *psksess = NULL;
117
118 static char *psk_identity = "Client_identity";
119 char *psk_key = NULL; /* by default PSK is not used */
120
121 static char http_server_binmode = 0; /* for now: 0/1 = default/binary */
122
123 #ifndef OPENSSL_NO_PSK
124 static unsigned int psk_server_cb(SSL *ssl, const char *identity,
125 unsigned char *psk,
126 unsigned int max_psk_len)
127 {
128 long key_len = 0;
129 unsigned char *key;
130
131 if (s_debug)
132 BIO_printf(bio_s_out, "psk_server_cb\n");
133
134 if (!SSL_is_dtls(ssl) && SSL_version(ssl) >= TLS1_3_VERSION) {
135 /*
136 * This callback is designed for use in (D)TLSv1.2 (or below). It is
137 * possible to use a single callback for all protocol versions - but it
138 * is preferred to use a dedicated callback for TLSv1.3. For TLSv1.3 we
139 * have psk_find_session_cb.
140 */
141 return 0;
142 }
143
144 if (identity == NULL) {
145 BIO_printf(bio_err, "Error: client did not send PSK identity\n");
146 goto out_err;
147 }
148 if (s_debug)
149 BIO_printf(bio_s_out, "identity_len=%d identity=%s\n",
150 (int)strlen(identity), identity);
151
152 /* here we could lookup the given identity e.g. from a database */
153 if (strcmp(identity, psk_identity) != 0) {
154 BIO_printf(bio_s_out, "PSK warning: client identity not what we expected"
155 " (got '%s' expected '%s')\n", identity, psk_identity);
156 } else {
157 if (s_debug)
158 BIO_printf(bio_s_out, "PSK client identity found\n");
159 }
160
161 /* convert the PSK key to binary */
162 key = OPENSSL_hexstr2buf(psk_key, &key_len);
163 if (key == NULL) {
164 BIO_printf(bio_err, "Could not convert PSK key '%s' to buffer\n",
165 psk_key);
166 return 0;
167 }
168 if (key_len > (int)max_psk_len) {
169 BIO_printf(bio_err,
170 "psk buffer of callback is too small (%d) for key (%ld)\n",
171 max_psk_len, key_len);
172 OPENSSL_free(key);
173 return 0;
174 }
175
176 memcpy(psk, key, key_len);
177 OPENSSL_free(key);
178
179 if (s_debug)
180 BIO_printf(bio_s_out, "fetched PSK len=%ld\n", key_len);
181 return key_len;
182 out_err:
183 if (s_debug)
184 BIO_printf(bio_err, "Error in PSK server callback\n");
185 (void)BIO_flush(bio_err);
186 (void)BIO_flush(bio_s_out);
187 return 0;
188 }
189 #endif
190
191 static int psk_find_session_cb(SSL *ssl, const unsigned char *identity,
192 size_t identity_len, SSL_SESSION **sess)
193 {
194 SSL_SESSION *tmpsess = NULL;
195 unsigned char *key;
196 long key_len;
197 const SSL_CIPHER *cipher = NULL;
198
199 if (strlen(psk_identity) != identity_len
200 || memcmp(psk_identity, identity, identity_len) != 0) {
201 *sess = NULL;
202 return 1;
203 }
204
205 if (psksess != NULL) {
206 SSL_SESSION_up_ref(psksess);
207 *sess = psksess;
208 return 1;
209 }
210
211 key = OPENSSL_hexstr2buf(psk_key, &key_len);
212 if (key == NULL) {
213 BIO_printf(bio_err, "Could not convert PSK key '%s' to buffer\n",
214 psk_key);
215 return 0;
216 }
217
218 /* We default to SHA256 */
219 cipher = SSL_CIPHER_find(ssl, tls13_aes128gcmsha256_id);
220 if (cipher == NULL) {
221 BIO_printf(bio_err, "Error finding suitable ciphersuite\n");
222 OPENSSL_free(key);
223 return 0;
224 }
225
226 tmpsess = SSL_SESSION_new();
227 if (tmpsess == NULL
228 || !SSL_SESSION_set1_master_key(tmpsess, key, key_len)
229 || !SSL_SESSION_set_cipher(tmpsess, cipher)
230 || !SSL_SESSION_set_protocol_version(tmpsess, SSL_version(ssl))) {
231 OPENSSL_free(key);
232 return 0;
233 }
234 OPENSSL_free(key);
235 *sess = tmpsess;
236
237 return 1;
238 }
239
240 #ifndef OPENSSL_NO_SRP
241 static srpsrvparm srp_callback_parm;
242 #endif
243
244 static int local_argc = 0;
245 static char **local_argv;
246
247 #ifdef CHARSET_EBCDIC
248 static int ebcdic_new(BIO *bi);
249 static int ebcdic_free(BIO *a);
250 static int ebcdic_read(BIO *b, char *out, int outl);
251 static int ebcdic_write(BIO *b, const char *in, int inl);
252 static long ebcdic_ctrl(BIO *b, int cmd, long num, void *ptr);
253 static int ebcdic_gets(BIO *bp, char *buf, int size);
254 static int ebcdic_puts(BIO *bp, const char *str);
255
256 # define BIO_TYPE_EBCDIC_FILTER (18|0x0200)
257 static BIO_METHOD *methods_ebcdic = NULL;
258
259 /* This struct is "unwarranted chumminess with the compiler." */
260 typedef struct {
261 size_t alloced;
262 char buff[1];
263 } EBCDIC_OUTBUFF;
264
265 static const BIO_METHOD *BIO_f_ebcdic_filter()
266 {
267 if (methods_ebcdic == NULL) {
268 methods_ebcdic = BIO_meth_new(BIO_TYPE_EBCDIC_FILTER,
269 "EBCDIC/ASCII filter");
270 if (methods_ebcdic == NULL
271 || !BIO_meth_set_write(methods_ebcdic, ebcdic_write)
272 || !BIO_meth_set_read(methods_ebcdic, ebcdic_read)
273 || !BIO_meth_set_puts(methods_ebcdic, ebcdic_puts)
274 || !BIO_meth_set_gets(methods_ebcdic, ebcdic_gets)
275 || !BIO_meth_set_ctrl(methods_ebcdic, ebcdic_ctrl)
276 || !BIO_meth_set_create(methods_ebcdic, ebcdic_new)
277 || !BIO_meth_set_destroy(methods_ebcdic, ebcdic_free))
278 return NULL;
279 }
280 return methods_ebcdic;
281 }
282
283 static int ebcdic_new(BIO *bi)
284 {
285 EBCDIC_OUTBUFF *wbuf;
286
287 wbuf = app_malloc(sizeof(*wbuf) + 1024, "ebcdic wbuf");
288 wbuf->alloced = 1024;
289 wbuf->buff[0] = '\0';
290
291 BIO_set_data(bi, wbuf);
292 BIO_set_init(bi, 1);
293 return 1;
294 }
295
296 static int ebcdic_free(BIO *a)
297 {
298 EBCDIC_OUTBUFF *wbuf;
299
300 if (a == NULL)
301 return 0;
302 wbuf = BIO_get_data(a);
303 OPENSSL_free(wbuf);
304 BIO_set_data(a, NULL);
305 BIO_set_init(a, 0);
306
307 return 1;
308 }
309
310 static int ebcdic_read(BIO *b, char *out, int outl)
311 {
312 int ret = 0;
313 BIO *next = BIO_next(b);
314
315 if (out == NULL || outl == 0)
316 return 0;
317 if (next == NULL)
318 return 0;
319
320 ret = BIO_read(next, out, outl);
321 if (ret > 0)
322 ascii2ebcdic(out, out, ret);
323 return ret;
324 }
325
326 static int ebcdic_write(BIO *b, const char *in, int inl)
327 {
328 EBCDIC_OUTBUFF *wbuf;
329 BIO *next = BIO_next(b);
330 int ret = 0;
331 int num;
332
333 if ((in == NULL) || (inl <= 0))
334 return 0;
335 if (next == NULL)
336 return 0;
337
338 wbuf = (EBCDIC_OUTBUFF *) BIO_get_data(b);
339
340 if (inl > (num = wbuf->alloced)) {
341 num = num + num; /* double the size */
342 if (num < inl)
343 num = inl;
344 OPENSSL_free(wbuf);
345 wbuf = app_malloc(sizeof(*wbuf) + num, "grow ebcdic wbuf");
346
347 wbuf->alloced = num;
348 wbuf->buff[0] = '\0';
349
350 BIO_set_data(b, wbuf);
351 }
352
353 ebcdic2ascii(wbuf->buff, in, inl);
354
355 ret = BIO_write(next, wbuf->buff, inl);
356
357 return ret;
358 }
359
360 static long ebcdic_ctrl(BIO *b, int cmd, long num, void *ptr)
361 {
362 long ret;
363 BIO *next = BIO_next(b);
364
365 if (next == NULL)
366 return 0;
367 switch (cmd) {
368 case BIO_CTRL_DUP:
369 ret = 0L;
370 break;
371 default:
372 ret = BIO_ctrl(next, cmd, num, ptr);
373 break;
374 }
375 return ret;
376 }
377
378 static int ebcdic_gets(BIO *bp, char *buf, int size)
379 {
380 int i, ret = 0;
381 BIO *next = BIO_next(bp);
382
383 if (next == NULL)
384 return 0;
385 /* return(BIO_gets(bp->next_bio,buf,size));*/
386 for (i = 0; i < size - 1; ++i) {
387 ret = ebcdic_read(bp, &buf[i], 1);
388 if (ret <= 0)
389 break;
390 else if (buf[i] == '\n') {
391 ++i;
392 break;
393 }
394 }
395 if (i < size)
396 buf[i] = '\0';
397 return (ret < 0 && i == 0) ? ret : i;
398 }
399
400 static int ebcdic_puts(BIO *bp, const char *str)
401 {
402 if (BIO_next(bp) == NULL)
403 return 0;
404 return ebcdic_write(bp, str, strlen(str));
405 }
406 #endif
407
408 /* This is a context that we pass to callbacks */
409 typedef struct tlsextctx_st {
410 char *servername;
411 BIO *biodebug;
412 int extension_error;
413 } tlsextctx;
414
415 static int ssl_servername_cb(SSL *s, int *ad, void *arg)
416 {
417 tlsextctx *p = (tlsextctx *) arg;
418 const char *servername = SSL_get_servername(s, TLSEXT_NAMETYPE_host_name);
419
420 if (servername != NULL && p->biodebug != NULL) {
421 const char *cp = servername;
422 unsigned char uc;
423
424 BIO_printf(p->biodebug, "Hostname in TLS extension: \"");
425 while ((uc = *cp++) != 0)
426 BIO_printf(p->biodebug,
427 (((uc) & ~127) == 0) && isprint(uc) ? "%c" : "\\x%02x", uc);
428 BIO_printf(p->biodebug, "\"\n");
429 }
430
431 if (p->servername == NULL)
432 return SSL_TLSEXT_ERR_NOACK;
433
434 if (servername != NULL) {
435 if (strcasecmp(servername, p->servername))
436 return p->extension_error;
437 if (ctx2 != NULL) {
438 BIO_printf(p->biodebug, "Switching server context.\n");
439 SSL_set_SSL_CTX(s, ctx2);
440 }
441 }
442 return SSL_TLSEXT_ERR_OK;
443 }
444
445 /* Structure passed to cert status callback */
446 typedef struct tlsextstatusctx_st {
447 int timeout;
448 /* File to load OCSP Response from (or NULL if no file) */
449 char *respin;
450 /* Default responder to use */
451 char *host, *path, *port;
452 char *proxy, *no_proxy;
453 int use_ssl;
454 int verbose;
455 } tlsextstatusctx;
456
457 static tlsextstatusctx tlscstatp = { -1 };
458
459 #ifndef OPENSSL_NO_OCSP
460
461 /*
462 * Helper function to get an OCSP_RESPONSE from a responder. This is a
463 * simplified version. It examines certificates each time and makes one OCSP
464 * responder query for each request. A full version would store details such as
465 * the OCSP certificate IDs and minimise the number of OCSP responses by caching
466 * them until they were considered "expired".
467 */
468 static int get_ocsp_resp_from_responder(SSL *s, tlsextstatusctx *srctx,
469 OCSP_RESPONSE **resp)
470 {
471 char *host = NULL, *port = NULL, *path = NULL;
472 char *proxy = NULL, *no_proxy = NULL;
473 int use_ssl;
474 STACK_OF(OPENSSL_STRING) *aia = NULL;
475 X509 *x = NULL;
476 X509_STORE_CTX *inctx = NULL;
477 X509_OBJECT *obj;
478 OCSP_REQUEST *req = NULL;
479 OCSP_CERTID *id = NULL;
480 STACK_OF(X509_EXTENSION) *exts;
481 int ret = SSL_TLSEXT_ERR_NOACK;
482 int i;
483
484 /* Build up OCSP query from server certificate */
485 x = SSL_get_certificate(s);
486 aia = X509_get1_ocsp(x);
487 if (aia != NULL) {
488 if (!OSSL_HTTP_parse_url(sk_OPENSSL_STRING_value(aia, 0), &use_ssl,
489 NULL, &host, &port, NULL, &path, NULL, NULL)) {
490 BIO_puts(bio_err, "cert_status: can't parse AIA URL\n");
491 goto err;
492 }
493 if (srctx->verbose)
494 BIO_printf(bio_err, "cert_status: AIA URL: %s\n",
495 sk_OPENSSL_STRING_value(aia, 0));
496 } else {
497 if (srctx->host == NULL) {
498 BIO_puts(bio_err,
499 "cert_status: no AIA and no default responder URL\n");
500 goto done;
501 }
502 host = srctx->host;
503 path = srctx->path;
504 port = srctx->port;
505 use_ssl = srctx->use_ssl;
506 }
507 proxy = srctx->proxy;
508 no_proxy = srctx->no_proxy;
509
510 inctx = X509_STORE_CTX_new();
511 if (inctx == NULL)
512 goto err;
513 if (!X509_STORE_CTX_init(inctx,
514 SSL_CTX_get_cert_store(SSL_get_SSL_CTX(s)),
515 NULL, NULL))
516 goto err;
517 obj = X509_STORE_CTX_get_obj_by_subject(inctx, X509_LU_X509,
518 X509_get_issuer_name(x));
519 if (obj == NULL) {
520 BIO_puts(bio_err, "cert_status: Can't retrieve issuer certificate.\n");
521 goto done;
522 }
523 id = OCSP_cert_to_id(NULL, x, X509_OBJECT_get0_X509(obj));
524 X509_OBJECT_free(obj);
525 if (id == NULL)
526 goto err;
527 req = OCSP_REQUEST_new();
528 if (req == NULL)
529 goto err;
530 if (!OCSP_request_add0_id(req, id))
531 goto err;
532 id = NULL;
533 /* Add any extensions to the request */
534 SSL_get_tlsext_status_exts(s, &exts);
535 for (i = 0; i < sk_X509_EXTENSION_num(exts); i++) {
536 X509_EXTENSION *ext = sk_X509_EXTENSION_value(exts, i);
537 if (!OCSP_REQUEST_add_ext(req, ext, -1))
538 goto err;
539 }
540 *resp = process_responder(req, host, port, path, proxy, no_proxy,
541 use_ssl, NULL /* headers */, srctx->timeout);
542 if (*resp == NULL) {
543 BIO_puts(bio_err, "cert_status: error querying responder\n");
544 goto done;
545 }
546
547 ret = SSL_TLSEXT_ERR_OK;
548 goto done;
549
550 err:
551 ret = SSL_TLSEXT_ERR_ALERT_FATAL;
552 done:
553 /*
554 * If we parsed aia we need to free; otherwise they were copied and we
555 * don't
556 */
557 if (aia != NULL) {
558 OPENSSL_free(host);
559 OPENSSL_free(path);
560 OPENSSL_free(port);
561 X509_email_free(aia);
562 }
563 OCSP_CERTID_free(id);
564 OCSP_REQUEST_free(req);
565 X509_STORE_CTX_free(inctx);
566 return ret;
567 }
568
569 /*
570 * Certificate Status callback. This is called when a client includes a
571 * certificate status request extension. The response is either obtained from a
572 * file, or from an OCSP responder.
573 */
574 static int cert_status_cb(SSL *s, void *arg)
575 {
576 tlsextstatusctx *srctx = arg;
577 OCSP_RESPONSE *resp = NULL;
578 unsigned char *rspder = NULL;
579 int rspderlen;
580 int ret = SSL_TLSEXT_ERR_ALERT_FATAL;
581
582 if (srctx->verbose)
583 BIO_puts(bio_err, "cert_status: callback called\n");
584
585 if (srctx->respin != NULL) {
586 BIO *derbio = bio_open_default(srctx->respin, 'r', FORMAT_ASN1);
587 if (derbio == NULL) {
588 BIO_puts(bio_err, "cert_status: Cannot open OCSP response file\n");
589 goto err;
590 }
591 resp = d2i_OCSP_RESPONSE_bio(derbio, NULL);
592 BIO_free(derbio);
593 if (resp == NULL) {
594 BIO_puts(bio_err, "cert_status: Error reading OCSP response\n");
595 goto err;
596 }
597 } else {
598 ret = get_ocsp_resp_from_responder(s, srctx, &resp);
599 if (ret != SSL_TLSEXT_ERR_OK)
600 goto err;
601 }
602
603 rspderlen = i2d_OCSP_RESPONSE(resp, &rspder);
604 if (rspderlen <= 0)
605 goto err;
606
607 SSL_set_tlsext_status_ocsp_resp(s, rspder, rspderlen);
608 if (srctx->verbose) {
609 BIO_puts(bio_err, "cert_status: ocsp response sent:\n");
610 OCSP_RESPONSE_print(bio_err, resp, 2);
611 }
612
613 ret = SSL_TLSEXT_ERR_OK;
614
615 err:
616 if (ret != SSL_TLSEXT_ERR_OK)
617 ERR_print_errors(bio_err);
618
619 OCSP_RESPONSE_free(resp);
620
621 return ret;
622 }
623 #endif
624
625 #ifndef OPENSSL_NO_NEXTPROTONEG
626 /* This is the context that we pass to next_proto_cb */
627 typedef struct tlsextnextprotoctx_st {
628 unsigned char *data;
629 size_t len;
630 } tlsextnextprotoctx;
631
632 static int next_proto_cb(SSL *s, const unsigned char **data,
633 unsigned int *len, void *arg)
634 {
635 tlsextnextprotoctx *next_proto = arg;
636
637 *data = next_proto->data;
638 *len = next_proto->len;
639
640 return SSL_TLSEXT_ERR_OK;
641 }
642 #endif /* ndef OPENSSL_NO_NEXTPROTONEG */
643
644 /* This the context that we pass to alpn_cb */
645 typedef struct tlsextalpnctx_st {
646 unsigned char *data;
647 size_t len;
648 } tlsextalpnctx;
649
650 static int alpn_cb(SSL *s, const unsigned char **out, unsigned char *outlen,
651 const unsigned char *in, unsigned int inlen, void *arg)
652 {
653 tlsextalpnctx *alpn_ctx = arg;
654
655 if (!s_quiet) {
656 /* We can assume that |in| is syntactically valid. */
657 unsigned int i;
658 BIO_printf(bio_s_out, "ALPN protocols advertised by the client: ");
659 for (i = 0; i < inlen;) {
660 if (i)
661 BIO_write(bio_s_out, ", ", 2);
662 BIO_write(bio_s_out, &in[i + 1], in[i]);
663 i += in[i] + 1;
664 }
665 BIO_write(bio_s_out, "\n", 1);
666 }
667
668 if (SSL_select_next_proto
669 ((unsigned char **)out, outlen, alpn_ctx->data, alpn_ctx->len, in,
670 inlen) != OPENSSL_NPN_NEGOTIATED) {
671 return SSL_TLSEXT_ERR_ALERT_FATAL;
672 }
673
674 if (!s_quiet) {
675 BIO_printf(bio_s_out, "ALPN protocols selected: ");
676 BIO_write(bio_s_out, *out, *outlen);
677 BIO_write(bio_s_out, "\n", 1);
678 }
679
680 return SSL_TLSEXT_ERR_OK;
681 }
682
683 static int not_resumable_sess_cb(SSL *s, int is_forward_secure)
684 {
685 /* disable resumption for sessions with forward secure ciphers */
686 return is_forward_secure;
687 }
688
689 typedef enum OPTION_choice {
690 OPT_COMMON,
691 OPT_ENGINE,
692 OPT_4, OPT_6, OPT_ACCEPT, OPT_PORT, OPT_UNIX, OPT_UNLINK, OPT_NACCEPT,
693 OPT_VERIFY, OPT_NAMEOPT, OPT_UPPER_V_VERIFY, OPT_CONTEXT, OPT_CERT, OPT_CRL,
694 OPT_CRL_DOWNLOAD, OPT_SERVERINFO, OPT_CERTFORM, OPT_KEY, OPT_KEYFORM,
695 OPT_PASS, OPT_CERT_CHAIN, OPT_DHPARAM, OPT_DCERTFORM, OPT_DCERT,
696 OPT_DKEYFORM, OPT_DPASS, OPT_DKEY, OPT_DCERT_CHAIN, OPT_NOCERT,
697 OPT_CAPATH, OPT_NOCAPATH, OPT_CHAINCAPATH, OPT_VERIFYCAPATH, OPT_NO_CACHE,
698 OPT_EXT_CACHE, OPT_CRLFORM, OPT_VERIFY_RET_ERROR, OPT_VERIFY_QUIET,
699 OPT_BUILD_CHAIN, OPT_CAFILE, OPT_NOCAFILE, OPT_CHAINCAFILE,
700 OPT_VERIFYCAFILE,
701 OPT_CASTORE, OPT_NOCASTORE, OPT_CHAINCASTORE, OPT_VERIFYCASTORE,
702 OPT_NBIO, OPT_NBIO_TEST, OPT_IGN_EOF, OPT_NO_IGN_EOF,
703 OPT_DEBUG, OPT_TLSEXTDEBUG, OPT_STATUS, OPT_STATUS_VERBOSE,
704 OPT_STATUS_TIMEOUT, OPT_PROXY, OPT_NO_PROXY, OPT_STATUS_URL,
705 OPT_STATUS_FILE, OPT_MSG, OPT_MSGFILE,
706 OPT_TRACE, OPT_SECURITY_DEBUG, OPT_SECURITY_DEBUG_VERBOSE, OPT_STATE,
707 OPT_CRLF, OPT_QUIET, OPT_BRIEF, OPT_NO_DHE,
708 OPT_NO_RESUME_EPHEMERAL, OPT_PSK_IDENTITY, OPT_PSK_HINT, OPT_PSK,
709 OPT_PSK_SESS, OPT_SRPVFILE, OPT_SRPUSERSEED, OPT_REV, OPT_WWW,
710 OPT_UPPER_WWW, OPT_HTTP, OPT_ASYNC, OPT_SSL_CONFIG,
711 OPT_MAX_SEND_FRAG, OPT_SPLIT_SEND_FRAG, OPT_MAX_PIPELINES, OPT_READ_BUF,
712 OPT_SSL3, OPT_TLS1_3, OPT_TLS1_2, OPT_TLS1_1, OPT_TLS1, OPT_DTLS, OPT_DTLS1,
713 OPT_DTLS1_2, OPT_SCTP, OPT_TIMEOUT, OPT_MTU, OPT_LISTEN, OPT_STATELESS,
714 OPT_ID_PREFIX, OPT_SERVERNAME, OPT_SERVERNAME_FATAL,
715 OPT_CERT2, OPT_KEY2, OPT_NEXTPROTONEG, OPT_ALPN, OPT_SENDFILE,
716 OPT_SRTP_PROFILES, OPT_KEYMATEXPORT, OPT_KEYMATEXPORTLEN,
717 OPT_KEYLOG_FILE, OPT_MAX_EARLY, OPT_RECV_MAX_EARLY, OPT_EARLY_DATA,
718 OPT_S_NUM_TICKETS, OPT_ANTI_REPLAY, OPT_NO_ANTI_REPLAY, OPT_SCTP_LABEL_BUG,
719 OPT_HTTP_SERVER_BINMODE, OPT_NOCANAMES, OPT_IGNORE_UNEXPECTED_EOF, OPT_KTLS,
720 OPT_R_ENUM,
721 OPT_S_ENUM,
722 OPT_V_ENUM,
723 OPT_X_ENUM,
724 OPT_PROV_ENUM
725 } OPTION_CHOICE;
726
727 const OPTIONS s_server_options[] = {
728 OPT_SECTION("General"),
729 {"help", OPT_HELP, '-', "Display this summary"},
730 {"ssl_config", OPT_SSL_CONFIG, 's',
731 "Configure SSL_CTX using the given configuration value"},
732 #ifndef OPENSSL_NO_SSL_TRACE
733 {"trace", OPT_TRACE, '-', "trace protocol messages"},
734 #endif
735 #ifndef OPENSSL_NO_ENGINE
736 {"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"},
737 #endif
738
739 OPT_SECTION("Network"),
740 {"port", OPT_PORT, 'p',
741 "TCP/IP port to listen on for connections (default is " PORT ")"},
742 {"accept", OPT_ACCEPT, 's',
743 "TCP/IP optional host and port to listen on for connections (default is *:" PORT ")"},
744 #ifdef AF_UNIX
745 {"unix", OPT_UNIX, 's', "Unix domain socket to accept on"},
746 {"unlink", OPT_UNLINK, '-', "For -unix, unlink existing socket first"},
747 #endif
748 {"4", OPT_4, '-', "Use IPv4 only"},
749 {"6", OPT_6, '-', "Use IPv6 only"},
750
751 OPT_SECTION("Identity"),
752 {"context", OPT_CONTEXT, 's', "Set session ID context"},
753 {"CAfile", OPT_CAFILE, '<', "PEM format file of CA's"},
754 {"CApath", OPT_CAPATH, '/', "PEM format directory of CA's"},
755 {"CAstore", OPT_CASTORE, ':', "URI to store of CA's"},
756 {"no-CAfile", OPT_NOCAFILE, '-',
757 "Do not load the default certificates file"},
758 {"no-CApath", OPT_NOCAPATH, '-',
759 "Do not load certificates from the default certificates directory"},
760 {"no-CAstore", OPT_NOCASTORE, '-',
761 "Do not load certificates from the default certificates store URI"},
762 {"nocert", OPT_NOCERT, '-', "Don't use any certificates (Anon-DH)"},
763 {"verify", OPT_VERIFY, 'n', "Turn on peer certificate verification"},
764 {"Verify", OPT_UPPER_V_VERIFY, 'n',
765 "Turn on peer certificate verification, must have a cert"},
766 {"nameopt", OPT_NAMEOPT, 's', "Certificate subject/issuer name printing options"},
767 {"cert", OPT_CERT, '<', "Server certificate file to use; default " TEST_CERT},
768 {"cert2", OPT_CERT2, '<',
769 "Certificate file to use for servername; default " TEST_CERT2},
770 {"certform", OPT_CERTFORM, 'F',
771 "Server certificate file format (PEM/DER/P12); has no effect"},
772 {"cert_chain", OPT_CERT_CHAIN, '<',
773 "Server certificate chain file in PEM format"},
774 {"build_chain", OPT_BUILD_CHAIN, '-', "Build server certificate chain"},
775 {"serverinfo", OPT_SERVERINFO, 's',
776 "PEM serverinfo file for certificate"},
777 {"key", OPT_KEY, 's',
778 "Private key file to use; default is -cert file or else" TEST_CERT},
779 {"key2", OPT_KEY2, '<',
780 "-Private Key file to use for servername if not in -cert2"},
781 {"keyform", OPT_KEYFORM, 'f', "Key format (ENGINE, other values ignored)"},
782 {"pass", OPT_PASS, 's', "Private key and cert file pass phrase source"},
783 {"dcert", OPT_DCERT, '<',
784 "Second server certificate file to use (usually for DSA)"},
785 {"dcertform", OPT_DCERTFORM, 'F',
786 "Second server certificate file format (PEM/DER/P12); has no effect"},
787 {"dcert_chain", OPT_DCERT_CHAIN, '<',
788 "second server certificate chain file in PEM format"},
789 {"dkey", OPT_DKEY, '<',
790 "Second private key file to use (usually for DSA)"},
791 {"dkeyform", OPT_DKEYFORM, 'F',
792 "Second key file format (ENGINE, other values ignored)"},
793 {"dpass", OPT_DPASS, 's',
794 "Second private key and cert file pass phrase source"},
795 {"dhparam", OPT_DHPARAM, '<', "DH parameters file to use"},
796 {"servername", OPT_SERVERNAME, 's',
797 "Servername for HostName TLS extension"},
798 {"servername_fatal", OPT_SERVERNAME_FATAL, '-',
799 "On servername mismatch send fatal alert (default warning alert)"},
800 {"nbio_test", OPT_NBIO_TEST, '-', "Test with the non-blocking test bio"},
801 {"crlf", OPT_CRLF, '-', "Convert LF from terminal into CRLF"},
802 {"quiet", OPT_QUIET, '-', "No server output"},
803 {"no_resume_ephemeral", OPT_NO_RESUME_EPHEMERAL, '-',
804 "Disable caching and tickets if ephemeral (EC)DH is used"},
805 {"www", OPT_WWW, '-', "Respond to a 'GET /' with a status page"},
806 {"WWW", OPT_UPPER_WWW, '-', "Respond to a 'GET with the file ./path"},
807 {"ignore_unexpected_eof", OPT_IGNORE_UNEXPECTED_EOF, '-',
808 "Do not treat lack of close_notify from a peer as an error"},
809 {"tlsextdebug", OPT_TLSEXTDEBUG, '-',
810 "Hex dump of all TLS extensions received"},
811 {"HTTP", OPT_HTTP, '-', "Like -WWW but ./path includes HTTP headers"},
812 {"id_prefix", OPT_ID_PREFIX, 's',
813 "Generate SSL/TLS session IDs prefixed by arg"},
814 {"keymatexport", OPT_KEYMATEXPORT, 's',
815 "Export keying material using label"},
816 {"keymatexportlen", OPT_KEYMATEXPORTLEN, 'p',
817 "Export len bytes of keying material; default 20"},
818 {"CRL", OPT_CRL, '<', "CRL file to use"},
819 {"CRLform", OPT_CRLFORM, 'F', "CRL file format (PEM or DER); default PEM"},
820 {"crl_download", OPT_CRL_DOWNLOAD, '-',
821 "Download CRLs from distribution points in certificate CDP entries"},
822 {"chainCAfile", OPT_CHAINCAFILE, '<',
823 "CA file for certificate chain (PEM format)"},
824 {"chainCApath", OPT_CHAINCAPATH, '/',
825 "use dir as certificate store path to build CA certificate chain"},
826 {"chainCAstore", OPT_CHAINCASTORE, ':',
827 "use URI as certificate store to build CA certificate chain"},
828 {"verifyCAfile", OPT_VERIFYCAFILE, '<',
829 "CA file for certificate verification (PEM format)"},
830 {"verifyCApath", OPT_VERIFYCAPATH, '/',
831 "use dir as certificate store path to verify CA certificate"},
832 {"verifyCAstore", OPT_VERIFYCASTORE, ':',
833 "use URI as certificate store to verify CA certificate"},
834 {"no_cache", OPT_NO_CACHE, '-', "Disable session cache"},
835 {"ext_cache", OPT_EXT_CACHE, '-',
836 "Disable internal cache, set up and use external cache"},
837 {"verify_return_error", OPT_VERIFY_RET_ERROR, '-',
838 "Close connection on verification error"},
839 {"verify_quiet", OPT_VERIFY_QUIET, '-',
840 "No verify output except verify errors"},
841 {"ign_eof", OPT_IGN_EOF, '-', "Ignore input EOF (default when -quiet)"},
842 {"no_ign_eof", OPT_NO_IGN_EOF, '-', "Do not ignore input EOF"},
843
844 #ifndef OPENSSL_NO_OCSP
845 OPT_SECTION("OCSP"),
846 {"status", OPT_STATUS, '-', "Request certificate status from server"},
847 {"status_verbose", OPT_STATUS_VERBOSE, '-',
848 "Print more output in certificate status callback"},
849 {"status_timeout", OPT_STATUS_TIMEOUT, 'n',
850 "Status request responder timeout"},
851 {"status_url", OPT_STATUS_URL, 's', "Status request fallback URL"},
852 {"proxy", OPT_PROXY, 's',
853 "[http[s]://]host[:port][/path] of HTTP(S) proxy to use; path is ignored"},
854 {"no_proxy", OPT_NO_PROXY, 's',
855 "List of addresses of servers not to use HTTP(S) proxy for"},
856 {OPT_MORE_STR, 0, 0,
857 "Default from environment variable 'no_proxy', else 'NO_PROXY', else none"},
858 {"status_file", OPT_STATUS_FILE, '<',
859 "File containing DER encoded OCSP Response"},
860 #endif
861
862 OPT_SECTION("Debug"),
863 {"security_debug", OPT_SECURITY_DEBUG, '-',
864 "Print output from SSL/TLS security framework"},
865 {"security_debug_verbose", OPT_SECURITY_DEBUG_VERBOSE, '-',
866 "Print more output from SSL/TLS security framework"},
867 {"brief", OPT_BRIEF, '-',
868 "Restrict output to brief summary of connection parameters"},
869 {"rev", OPT_REV, '-',
870 "act as an echo server that sends back received text reversed"},
871 {"debug", OPT_DEBUG, '-', "Print more output"},
872 {"msg", OPT_MSG, '-', "Show protocol messages"},
873 {"msgfile", OPT_MSGFILE, '>',
874 "File to send output of -msg or -trace, instead of stdout"},
875 {"state", OPT_STATE, '-', "Print the SSL states"},
876 {"async", OPT_ASYNC, '-', "Operate in asynchronous mode"},
877 {"max_pipelines", OPT_MAX_PIPELINES, 'p',
878 "Maximum number of encrypt/decrypt pipelines to be used"},
879 {"naccept", OPT_NACCEPT, 'p', "Terminate after #num connections"},
880 {"keylogfile", OPT_KEYLOG_FILE, '>', "Write TLS secrets to file"},
881
882 OPT_SECTION("Network"),
883 {"nbio", OPT_NBIO, '-', "Use non-blocking IO"},
884 {"timeout", OPT_TIMEOUT, '-', "Enable timeouts"},
885 {"mtu", OPT_MTU, 'p', "Set link-layer MTU"},
886 {"read_buf", OPT_READ_BUF, 'p',
887 "Default read buffer size to be used for connections"},
888 {"split_send_frag", OPT_SPLIT_SEND_FRAG, 'p',
889 "Size used to split data for encrypt pipelines"},
890 {"max_send_frag", OPT_MAX_SEND_FRAG, 'p', "Maximum Size of send frames "},
891
892 OPT_SECTION("Server identity"),
893 {"psk_identity", OPT_PSK_IDENTITY, 's', "PSK identity to expect"},
894 #ifndef OPENSSL_NO_PSK
895 {"psk_hint", OPT_PSK_HINT, 's', "PSK identity hint to use"},
896 #endif
897 {"psk", OPT_PSK, 's', "PSK in hex (without 0x)"},
898 {"psk_session", OPT_PSK_SESS, '<', "File to read PSK SSL session from"},
899 #ifndef OPENSSL_NO_SRP
900 {"srpvfile", OPT_SRPVFILE, '<', "(deprecated) The verifier file for SRP"},
901 {"srpuserseed", OPT_SRPUSERSEED, 's',
902 "(deprecated) A seed string for a default user salt"},
903 #endif
904
905 OPT_SECTION("Protocol and version"),
906 {"max_early_data", OPT_MAX_EARLY, 'n',
907 "The maximum number of bytes of early data as advertised in tickets"},
908 {"recv_max_early_data", OPT_RECV_MAX_EARLY, 'n',
909 "The maximum number of bytes of early data (hard limit)"},
910 {"early_data", OPT_EARLY_DATA, '-', "Attempt to read early data"},
911 {"num_tickets", OPT_S_NUM_TICKETS, 'n',
912 "The number of TLSv1.3 session tickets that a server will automatically issue" },
913 {"anti_replay", OPT_ANTI_REPLAY, '-', "Switch on anti-replay protection (default)"},
914 {"no_anti_replay", OPT_NO_ANTI_REPLAY, '-', "Switch off anti-replay protection"},
915 {"http_server_binmode", OPT_HTTP_SERVER_BINMODE, '-', "opening files in binary mode when acting as http server (-WWW and -HTTP)"},
916 {"no_ca_names", OPT_NOCANAMES, '-',
917 "Disable TLS Extension CA Names"},
918 {"stateless", OPT_STATELESS, '-', "Require TLSv1.3 cookies"},
919 #ifndef OPENSSL_NO_SSL3
920 {"ssl3", OPT_SSL3, '-', "Just talk SSLv3"},
921 #endif
922 #ifndef OPENSSL_NO_TLS1
923 {"tls1", OPT_TLS1, '-', "Just talk TLSv1"},
924 #endif
925 #ifndef OPENSSL_NO_TLS1_1
926 {"tls1_1", OPT_TLS1_1, '-', "Just talk TLSv1.1"},
927 #endif
928 #ifndef OPENSSL_NO_TLS1_2
929 {"tls1_2", OPT_TLS1_2, '-', "just talk TLSv1.2"},
930 #endif
931 #ifndef OPENSSL_NO_TLS1_3
932 {"tls1_3", OPT_TLS1_3, '-', "just talk TLSv1.3"},
933 #endif
934 #ifndef OPENSSL_NO_DTLS
935 {"dtls", OPT_DTLS, '-', "Use any DTLS version"},
936 {"listen", OPT_LISTEN, '-',
937 "Listen for a DTLS ClientHello with a cookie and then connect"},
938 #endif
939 #ifndef OPENSSL_NO_DTLS1
940 {"dtls1", OPT_DTLS1, '-', "Just talk DTLSv1"},
941 #endif
942 #ifndef OPENSSL_NO_DTLS1_2
943 {"dtls1_2", OPT_DTLS1_2, '-', "Just talk DTLSv1.2"},
944 #endif
945 #ifndef OPENSSL_NO_SCTP
946 {"sctp", OPT_SCTP, '-', "Use SCTP"},
947 {"sctp_label_bug", OPT_SCTP_LABEL_BUG, '-', "Enable SCTP label length bug"},
948 #endif
949 #ifndef OPENSSL_NO_SRTP
950 {"use_srtp", OPT_SRTP_PROFILES, 's',
951 "Offer SRTP key management with a colon-separated profile list"},
952 #endif
953 {"no_dhe", OPT_NO_DHE, '-', "Disable ephemeral DH"},
954 #ifndef OPENSSL_NO_NEXTPROTONEG
955 {"nextprotoneg", OPT_NEXTPROTONEG, 's',
956 "Set the advertised protocols for the NPN extension (comma-separated list)"},
957 #endif
958 {"alpn", OPT_ALPN, 's',
959 "Set the advertised protocols for the ALPN extension (comma-separated list)"},
960 #ifndef OPENSSL_NO_KTLS
961 {"ktls", OPT_KTLS, '-', "Enable Kernel TLS for sending and receiving"},
962 {"sendfile", OPT_SENDFILE, '-', "Use sendfile to response file with -WWW"},
963 #endif
964
965 OPT_R_OPTIONS,
966 OPT_S_OPTIONS,
967 OPT_V_OPTIONS,
968 OPT_X_OPTIONS,
969 OPT_PROV_OPTIONS,
970 {NULL}
971 };
972
973 #define IS_PROT_FLAG(o) \
974 (o == OPT_SSL3 || o == OPT_TLS1 || o == OPT_TLS1_1 || o == OPT_TLS1_2 \
975 || o == OPT_TLS1_3 || o == OPT_DTLS || o == OPT_DTLS1 || o == OPT_DTLS1_2)
976
977 int s_server_main(int argc, char *argv[])
978 {
979 ENGINE *engine = NULL;
980 EVP_PKEY *s_key = NULL, *s_dkey = NULL;
981 SSL_CONF_CTX *cctx = NULL;
982 const SSL_METHOD *meth = TLS_server_method();
983 SSL_EXCERT *exc = NULL;
984 STACK_OF(OPENSSL_STRING) *ssl_args = NULL;
985 STACK_OF(X509) *s_chain = NULL, *s_dchain = NULL;
986 STACK_OF(X509_CRL) *crls = NULL;
987 X509 *s_cert = NULL, *s_dcert = NULL;
988 X509_VERIFY_PARAM *vpm = NULL;
989 const char *CApath = NULL, *CAfile = NULL, *CAstore = NULL;
990 const char *chCApath = NULL, *chCAfile = NULL, *chCAstore = NULL;
991 char *dpassarg = NULL, *dpass = NULL;
992 char *passarg = NULL, *pass = NULL;
993 char *vfyCApath = NULL, *vfyCAfile = NULL, *vfyCAstore = NULL;
994 char *crl_file = NULL, *prog;
995 #ifdef AF_UNIX
996 int unlink_unix_path = 0;
997 #endif
998 do_server_cb server_cb;
999 int vpmtouched = 0, build_chain = 0, no_cache = 0, ext_cache = 0;
1000 char *dhfile = NULL;
1001 int no_dhe = 0;
1002 int nocert = 0, ret = 1;
1003 int noCApath = 0, noCAfile = 0, noCAstore = 0;
1004 int s_cert_format = FORMAT_UNDEF, s_key_format = FORMAT_UNDEF;
1005 int s_dcert_format = FORMAT_UNDEF, s_dkey_format = FORMAT_UNDEF;
1006 int rev = 0, naccept = -1, sdebug = 0;
1007 int socket_family = AF_UNSPEC, socket_type = SOCK_STREAM, protocol = 0;
1008 int state = 0, crl_format = FORMAT_UNDEF, crl_download = 0;
1009 char *host = NULL;
1010 char *port = OPENSSL_strdup(PORT);
1011 unsigned char *context = NULL;
1012 OPTION_CHOICE o;
1013 EVP_PKEY *s_key2 = NULL;
1014 X509 *s_cert2 = NULL;
1015 tlsextctx tlsextcbp = { NULL, NULL, SSL_TLSEXT_ERR_ALERT_WARNING };
1016 const char *ssl_config = NULL;
1017 int read_buf_len = 0;
1018 #ifndef OPENSSL_NO_NEXTPROTONEG
1019 const char *next_proto_neg_in = NULL;
1020 tlsextnextprotoctx next_proto = { NULL, 0 };
1021 #endif
1022 const char *alpn_in = NULL;
1023 tlsextalpnctx alpn_ctx = { NULL, 0 };
1024 #ifndef OPENSSL_NO_PSK
1025 /* by default do not send a PSK identity hint */
1026 char *psk_identity_hint = NULL;
1027 #endif
1028 char *p;
1029 #ifndef OPENSSL_NO_SRP
1030 char *srpuserseed = NULL;
1031 char *srp_verifier_file = NULL;
1032 #endif
1033 #ifndef OPENSSL_NO_SRTP
1034 char *srtp_profiles = NULL;
1035 #endif
1036 int min_version = 0, max_version = 0, prot_opt = 0, no_prot_opt = 0;
1037 int s_server_verify = SSL_VERIFY_NONE;
1038 int s_server_session_id_context = 1; /* anything will do */
1039 const char *s_cert_file = TEST_CERT, *s_key_file = NULL, *s_chain_file = NULL;
1040 const char *s_cert_file2 = TEST_CERT2, *s_key_file2 = NULL;
1041 char *s_dcert_file = NULL, *s_dkey_file = NULL, *s_dchain_file = NULL;
1042 #ifndef OPENSSL_NO_OCSP
1043 int s_tlsextstatus = 0;
1044 #endif
1045 int no_resume_ephemeral = 0;
1046 unsigned int max_send_fragment = 0;
1047 unsigned int split_send_fragment = 0, max_pipelines = 0;
1048 const char *s_serverinfo_file = NULL;
1049 const char *keylog_file = NULL;
1050 int max_early_data = -1, recv_max_early_data = -1;
1051 char *psksessf = NULL;
1052 int no_ca_names = 0;
1053 #ifndef OPENSSL_NO_SCTP
1054 int sctp_label_bug = 0;
1055 #endif
1056 int ignore_unexpected_eof = 0;
1057 #ifndef OPENSSL_NO_KTLS
1058 int enable_ktls = 0;
1059 #endif
1060
1061 /* Init of few remaining global variables */
1062 local_argc = argc;
1063 local_argv = argv;
1064
1065 ctx = ctx2 = NULL;
1066 s_nbio = s_nbio_test = 0;
1067 www = 0;
1068 bio_s_out = NULL;
1069 s_debug = 0;
1070 s_msg = 0;
1071 s_quiet = 0;
1072 s_brief = 0;
1073 async = 0;
1074 use_sendfile = 0;
1075
1076 cctx = SSL_CONF_CTX_new();
1077 vpm = X509_VERIFY_PARAM_new();
1078 if (cctx == NULL || vpm == NULL)
1079 goto end;
1080 SSL_CONF_CTX_set_flags(cctx,
1081 SSL_CONF_FLAG_SERVER | SSL_CONF_FLAG_CMDLINE);
1082
1083 prog = opt_init(argc, argv, s_server_options);
1084 while ((o = opt_next()) != OPT_EOF) {
1085 if (IS_PROT_FLAG(o) && ++prot_opt > 1) {
1086 BIO_printf(bio_err, "Cannot supply multiple protocol flags\n");
1087 goto end;
1088 }
1089 if (IS_NO_PROT_FLAG(o))
1090 no_prot_opt++;
1091 if (prot_opt == 1 && no_prot_opt) {
1092 BIO_printf(bio_err,
1093 "Cannot supply both a protocol flag and '-no_<prot>'\n");
1094 goto end;
1095 }
1096 switch (o) {
1097 case OPT_EOF:
1098 case OPT_ERR:
1099 opthelp:
1100 BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
1101 goto end;
1102 case OPT_HELP:
1103 opt_help(s_server_options);
1104 ret = 0;
1105 goto end;
1106
1107 case OPT_4:
1108 #ifdef AF_UNIX
1109 if (socket_family == AF_UNIX) {
1110 OPENSSL_free(host); host = NULL;
1111 OPENSSL_free(port); port = NULL;
1112 }
1113 #endif
1114 socket_family = AF_INET;
1115 break;
1116 case OPT_6:
1117 if (1) {
1118 #ifdef AF_INET6
1119 #ifdef AF_UNIX
1120 if (socket_family == AF_UNIX) {
1121 OPENSSL_free(host); host = NULL;
1122 OPENSSL_free(port); port = NULL;
1123 }
1124 #endif
1125 socket_family = AF_INET6;
1126 } else {
1127 #endif
1128 BIO_printf(bio_err, "%s: IPv6 domain sockets unsupported\n", prog);
1129 goto end;
1130 }
1131 break;
1132 case OPT_PORT:
1133 #ifdef AF_UNIX
1134 if (socket_family == AF_UNIX) {
1135 socket_family = AF_UNSPEC;
1136 }
1137 #endif
1138 OPENSSL_free(port); port = NULL;
1139 OPENSSL_free(host); host = NULL;
1140 if (BIO_parse_hostserv(opt_arg(), NULL, &port, BIO_PARSE_PRIO_SERV) < 1) {
1141 BIO_printf(bio_err,
1142 "%s: -port argument malformed or ambiguous\n",
1143 port);
1144 goto end;
1145 }
1146 break;
1147 case OPT_ACCEPT:
1148 #ifdef AF_UNIX
1149 if (socket_family == AF_UNIX) {
1150 socket_family = AF_UNSPEC;
1151 }
1152 #endif
1153 OPENSSL_free(port); port = NULL;
1154 OPENSSL_free(host); host = NULL;
1155 if (BIO_parse_hostserv(opt_arg(), &host, &port, BIO_PARSE_PRIO_SERV) < 1) {
1156 BIO_printf(bio_err,
1157 "%s: -accept argument malformed or ambiguous\n",
1158 port);
1159 goto end;
1160 }
1161 break;
1162 #ifdef AF_UNIX
1163 case OPT_UNIX:
1164 socket_family = AF_UNIX;
1165 OPENSSL_free(host); host = OPENSSL_strdup(opt_arg());
1166 OPENSSL_free(port); port = NULL;
1167 break;
1168 case OPT_UNLINK:
1169 unlink_unix_path = 1;
1170 break;
1171 #endif
1172 case OPT_NACCEPT:
1173 naccept = atol(opt_arg());
1174 break;
1175 case OPT_VERIFY:
1176 s_server_verify = SSL_VERIFY_PEER | SSL_VERIFY_CLIENT_ONCE;
1177 verify_args.depth = atoi(opt_arg());
1178 if (!s_quiet)
1179 BIO_printf(bio_err, "verify depth is %d\n", verify_args.depth);
1180 break;
1181 case OPT_UPPER_V_VERIFY:
1182 s_server_verify =
1183 SSL_VERIFY_PEER | SSL_VERIFY_FAIL_IF_NO_PEER_CERT |
1184 SSL_VERIFY_CLIENT_ONCE;
1185 verify_args.depth = atoi(opt_arg());
1186 if (!s_quiet)
1187 BIO_printf(bio_err,
1188 "verify depth is %d, must return a certificate\n",
1189 verify_args.depth);
1190 break;
1191 case OPT_CONTEXT:
1192 context = (unsigned char *)opt_arg();
1193 break;
1194 case OPT_CERT:
1195 s_cert_file = opt_arg();
1196 break;
1197 case OPT_NAMEOPT:
1198 if (!set_nameopt(opt_arg()))
1199 goto end;
1200 break;
1201 case OPT_CRL:
1202 crl_file = opt_arg();
1203 break;
1204 case OPT_CRL_DOWNLOAD:
1205 crl_download = 1;
1206 break;
1207 case OPT_SERVERINFO:
1208 s_serverinfo_file = opt_arg();
1209 break;
1210 case OPT_CERTFORM:
1211 if (!opt_format(opt_arg(), OPT_FMT_ANY, &s_cert_format))
1212 goto opthelp;
1213 break;
1214 case OPT_KEY:
1215 s_key_file = opt_arg();
1216 break;
1217 case OPT_KEYFORM:
1218 if (!opt_format(opt_arg(), OPT_FMT_ANY, &s_key_format))
1219 goto opthelp;
1220 break;
1221 case OPT_PASS:
1222 passarg = opt_arg();
1223 break;
1224 case OPT_CERT_CHAIN:
1225 s_chain_file = opt_arg();
1226 break;
1227 case OPT_DHPARAM:
1228 dhfile = opt_arg();
1229 break;
1230 case OPT_DCERTFORM:
1231 if (!opt_format(opt_arg(), OPT_FMT_ANY, &s_dcert_format))
1232 goto opthelp;
1233 break;
1234 case OPT_DCERT:
1235 s_dcert_file = opt_arg();
1236 break;
1237 case OPT_DKEYFORM:
1238 if (!opt_format(opt_arg(), OPT_FMT_ANY, &s_dkey_format))
1239 goto opthelp;
1240 break;
1241 case OPT_DPASS:
1242 dpassarg = opt_arg();
1243 break;
1244 case OPT_DKEY:
1245 s_dkey_file = opt_arg();
1246 break;
1247 case OPT_DCERT_CHAIN:
1248 s_dchain_file = opt_arg();
1249 break;
1250 case OPT_NOCERT:
1251 nocert = 1;
1252 break;
1253 case OPT_CAPATH:
1254 CApath = opt_arg();
1255 break;
1256 case OPT_NOCAPATH:
1257 noCApath = 1;
1258 break;
1259 case OPT_CHAINCAPATH:
1260 chCApath = opt_arg();
1261 break;
1262 case OPT_VERIFYCAPATH:
1263 vfyCApath = opt_arg();
1264 break;
1265 case OPT_CASTORE:
1266 CAstore = opt_arg();
1267 break;
1268 case OPT_NOCASTORE:
1269 noCAstore = 1;
1270 break;
1271 case OPT_CHAINCASTORE:
1272 chCAstore = opt_arg();
1273 break;
1274 case OPT_VERIFYCASTORE:
1275 vfyCAstore = opt_arg();
1276 break;
1277 case OPT_NO_CACHE:
1278 no_cache = 1;
1279 break;
1280 case OPT_EXT_CACHE:
1281 ext_cache = 1;
1282 break;
1283 case OPT_CRLFORM:
1284 if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &crl_format))
1285 goto opthelp;
1286 break;
1287 case OPT_S_CASES:
1288 case OPT_S_NUM_TICKETS:
1289 case OPT_ANTI_REPLAY:
1290 case OPT_NO_ANTI_REPLAY:
1291 if (ssl_args == NULL)
1292 ssl_args = sk_OPENSSL_STRING_new_null();
1293 if (ssl_args == NULL
1294 || !sk_OPENSSL_STRING_push(ssl_args, opt_flag())
1295 || !sk_OPENSSL_STRING_push(ssl_args, opt_arg())) {
1296 BIO_printf(bio_err, "%s: Memory allocation failure\n", prog);
1297 goto end;
1298 }
1299 break;
1300 case OPT_V_CASES:
1301 if (!opt_verify(o, vpm))
1302 goto end;
1303 vpmtouched++;
1304 break;
1305 case OPT_X_CASES:
1306 if (!args_excert(o, &exc))
1307 goto end;
1308 break;
1309 case OPT_VERIFY_RET_ERROR:
1310 verify_args.return_error = 1;
1311 break;
1312 case OPT_VERIFY_QUIET:
1313 verify_args.quiet = 1;
1314 break;
1315 case OPT_BUILD_CHAIN:
1316 build_chain = 1;
1317 break;
1318 case OPT_CAFILE:
1319 CAfile = opt_arg();
1320 break;
1321 case OPT_NOCAFILE:
1322 noCAfile = 1;
1323 break;
1324 case OPT_CHAINCAFILE:
1325 chCAfile = opt_arg();
1326 break;
1327 case OPT_VERIFYCAFILE:
1328 vfyCAfile = opt_arg();
1329 break;
1330 case OPT_NBIO:
1331 s_nbio = 1;
1332 break;
1333 case OPT_NBIO_TEST:
1334 s_nbio = s_nbio_test = 1;
1335 break;
1336 case OPT_IGN_EOF:
1337 s_ign_eof = 1;
1338 break;
1339 case OPT_NO_IGN_EOF:
1340 s_ign_eof = 0;
1341 break;
1342 case OPT_DEBUG:
1343 s_debug = 1;
1344 break;
1345 case OPT_TLSEXTDEBUG:
1346 s_tlsextdebug = 1;
1347 break;
1348 case OPT_STATUS:
1349 #ifndef OPENSSL_NO_OCSP
1350 s_tlsextstatus = 1;
1351 #endif
1352 break;
1353 case OPT_STATUS_VERBOSE:
1354 #ifndef OPENSSL_NO_OCSP
1355 s_tlsextstatus = tlscstatp.verbose = 1;
1356 #endif
1357 break;
1358 case OPT_STATUS_TIMEOUT:
1359 #ifndef OPENSSL_NO_OCSP
1360 s_tlsextstatus = 1;
1361 tlscstatp.timeout = atoi(opt_arg());
1362 #endif
1363 break;
1364 case OPT_PROXY:
1365 #ifndef OPENSSL_NO_OCSP
1366 tlscstatp.proxy = opt_arg();
1367 #endif
1368 break;
1369 case OPT_NO_PROXY:
1370 #ifndef OPENSSL_NO_OCSP
1371 tlscstatp.no_proxy = opt_arg();
1372 #endif
1373 break;
1374 case OPT_STATUS_URL:
1375 #ifndef OPENSSL_NO_OCSP
1376 s_tlsextstatus = 1;
1377 if (!OSSL_HTTP_parse_url(opt_arg(), &tlscstatp.use_ssl, NULL,
1378 &tlscstatp.host, &tlscstatp.port, NULL,
1379 &tlscstatp.path, NULL, NULL)) {
1380 BIO_printf(bio_err, "Error parsing -status_url argument\n");
1381 goto end;
1382 }
1383 #endif
1384 break;
1385 case OPT_STATUS_FILE:
1386 #ifndef OPENSSL_NO_OCSP
1387 s_tlsextstatus = 1;
1388 tlscstatp.respin = opt_arg();
1389 #endif
1390 break;
1391 case OPT_MSG:
1392 s_msg = 1;
1393 break;
1394 case OPT_MSGFILE:
1395 bio_s_msg = BIO_new_file(opt_arg(), "w");
1396 break;
1397 case OPT_TRACE:
1398 #ifndef OPENSSL_NO_SSL_TRACE
1399 s_msg = 2;
1400 #endif
1401 break;
1402 case OPT_SECURITY_DEBUG:
1403 sdebug = 1;
1404 break;
1405 case OPT_SECURITY_DEBUG_VERBOSE:
1406 sdebug = 2;
1407 break;
1408 case OPT_STATE:
1409 state = 1;
1410 break;
1411 case OPT_CRLF:
1412 s_crlf = 1;
1413 break;
1414 case OPT_QUIET:
1415 s_quiet = 1;
1416 break;
1417 case OPT_BRIEF:
1418 s_quiet = s_brief = verify_args.quiet = 1;
1419 break;
1420 case OPT_NO_DHE:
1421 no_dhe = 1;
1422 break;
1423 case OPT_NO_RESUME_EPHEMERAL:
1424 no_resume_ephemeral = 1;
1425 break;
1426 case OPT_PSK_IDENTITY:
1427 psk_identity = opt_arg();
1428 break;
1429 case OPT_PSK_HINT:
1430 #ifndef OPENSSL_NO_PSK
1431 psk_identity_hint = opt_arg();
1432 #endif
1433 break;
1434 case OPT_PSK:
1435 for (p = psk_key = opt_arg(); *p; p++) {
1436 if (isxdigit(_UC(*p)))
1437 continue;
1438 BIO_printf(bio_err, "Not a hex number '%s'\n", psk_key);
1439 goto end;
1440 }
1441 break;
1442 case OPT_PSK_SESS:
1443 psksessf = opt_arg();
1444 break;
1445 case OPT_SRPVFILE:
1446 #ifndef OPENSSL_NO_SRP
1447 srp_verifier_file = opt_arg();
1448 if (min_version < TLS1_VERSION)
1449 min_version = TLS1_VERSION;
1450 #endif
1451 break;
1452 case OPT_SRPUSERSEED:
1453 #ifndef OPENSSL_NO_SRP
1454 srpuserseed = opt_arg();
1455 if (min_version < TLS1_VERSION)
1456 min_version = TLS1_VERSION;
1457 #endif
1458 break;
1459 case OPT_REV:
1460 rev = 1;
1461 break;
1462 case OPT_WWW:
1463 www = 1;
1464 break;
1465 case OPT_UPPER_WWW:
1466 www = 2;
1467 break;
1468 case OPT_HTTP:
1469 www = 3;
1470 break;
1471 case OPT_SSL_CONFIG:
1472 ssl_config = opt_arg();
1473 break;
1474 case OPT_SSL3:
1475 min_version = SSL3_VERSION;
1476 max_version = SSL3_VERSION;
1477 break;
1478 case OPT_TLS1_3:
1479 min_version = TLS1_3_VERSION;
1480 max_version = TLS1_3_VERSION;
1481 break;
1482 case OPT_TLS1_2:
1483 min_version = TLS1_2_VERSION;
1484 max_version = TLS1_2_VERSION;
1485 break;
1486 case OPT_TLS1_1:
1487 min_version = TLS1_1_VERSION;
1488 max_version = TLS1_1_VERSION;
1489 break;
1490 case OPT_TLS1:
1491 min_version = TLS1_VERSION;
1492 max_version = TLS1_VERSION;
1493 break;
1494 case OPT_DTLS:
1495 #ifndef OPENSSL_NO_DTLS
1496 meth = DTLS_server_method();
1497 socket_type = SOCK_DGRAM;
1498 #endif
1499 break;
1500 case OPT_DTLS1:
1501 #ifndef OPENSSL_NO_DTLS
1502 meth = DTLS_server_method();
1503 min_version = DTLS1_VERSION;
1504 max_version = DTLS1_VERSION;
1505 socket_type = SOCK_DGRAM;
1506 #endif
1507 break;
1508 case OPT_DTLS1_2:
1509 #ifndef OPENSSL_NO_DTLS
1510 meth = DTLS_server_method();
1511 min_version = DTLS1_2_VERSION;
1512 max_version = DTLS1_2_VERSION;
1513 socket_type = SOCK_DGRAM;
1514 #endif
1515 break;
1516 case OPT_SCTP:
1517 #ifndef OPENSSL_NO_SCTP
1518 protocol = IPPROTO_SCTP;
1519 #endif
1520 break;
1521 case OPT_SCTP_LABEL_BUG:
1522 #ifndef OPENSSL_NO_SCTP
1523 sctp_label_bug = 1;
1524 #endif
1525 break;
1526 case OPT_TIMEOUT:
1527 #ifndef OPENSSL_NO_DTLS
1528 enable_timeouts = 1;
1529 #endif
1530 break;
1531 case OPT_MTU:
1532 #ifndef OPENSSL_NO_DTLS
1533 socket_mtu = atol(opt_arg());
1534 #endif
1535 break;
1536 case OPT_LISTEN:
1537 #ifndef OPENSSL_NO_DTLS
1538 dtlslisten = 1;
1539 #endif
1540 break;
1541 case OPT_STATELESS:
1542 stateless = 1;
1543 break;
1544 case OPT_ID_PREFIX:
1545 session_id_prefix = opt_arg();
1546 break;
1547 case OPT_ENGINE:
1548 #ifndef OPENSSL_NO_ENGINE
1549 engine = setup_engine(opt_arg(), s_debug);
1550 #endif
1551 break;
1552 case OPT_R_CASES:
1553 if (!opt_rand(o))
1554 goto end;
1555 break;
1556 case OPT_PROV_CASES:
1557 if (!opt_provider(o))
1558 goto end;
1559 break;
1560 case OPT_SERVERNAME:
1561 tlsextcbp.servername = opt_arg();
1562 break;
1563 case OPT_SERVERNAME_FATAL:
1564 tlsextcbp.extension_error = SSL_TLSEXT_ERR_ALERT_FATAL;
1565 break;
1566 case OPT_CERT2:
1567 s_cert_file2 = opt_arg();
1568 break;
1569 case OPT_KEY2:
1570 s_key_file2 = opt_arg();
1571 break;
1572 case OPT_NEXTPROTONEG:
1573 # ifndef OPENSSL_NO_NEXTPROTONEG
1574 next_proto_neg_in = opt_arg();
1575 #endif
1576 break;
1577 case OPT_ALPN:
1578 alpn_in = opt_arg();
1579 break;
1580 case OPT_SRTP_PROFILES:
1581 #ifndef OPENSSL_NO_SRTP
1582 srtp_profiles = opt_arg();
1583 #endif
1584 break;
1585 case OPT_KEYMATEXPORT:
1586 keymatexportlabel = opt_arg();
1587 break;
1588 case OPT_KEYMATEXPORTLEN:
1589 keymatexportlen = atoi(opt_arg());
1590 break;
1591 case OPT_ASYNC:
1592 async = 1;
1593 break;
1594 case OPT_MAX_SEND_FRAG:
1595 max_send_fragment = atoi(opt_arg());
1596 break;
1597 case OPT_SPLIT_SEND_FRAG:
1598 split_send_fragment = atoi(opt_arg());
1599 break;
1600 case OPT_MAX_PIPELINES:
1601 max_pipelines = atoi(opt_arg());
1602 break;
1603 case OPT_READ_BUF:
1604 read_buf_len = atoi(opt_arg());
1605 break;
1606 case OPT_KEYLOG_FILE:
1607 keylog_file = opt_arg();
1608 break;
1609 case OPT_MAX_EARLY:
1610 max_early_data = atoi(opt_arg());
1611 if (max_early_data < 0) {
1612 BIO_printf(bio_err, "Invalid value for max_early_data\n");
1613 goto end;
1614 }
1615 break;
1616 case OPT_RECV_MAX_EARLY:
1617 recv_max_early_data = atoi(opt_arg());
1618 if (recv_max_early_data < 0) {
1619 BIO_printf(bio_err, "Invalid value for recv_max_early_data\n");
1620 goto end;
1621 }
1622 break;
1623 case OPT_EARLY_DATA:
1624 early_data = 1;
1625 if (max_early_data == -1)
1626 max_early_data = SSL3_RT_MAX_PLAIN_LENGTH;
1627 break;
1628 case OPT_HTTP_SERVER_BINMODE:
1629 http_server_binmode = 1;
1630 break;
1631 case OPT_NOCANAMES:
1632 no_ca_names = 1;
1633 break;
1634 case OPT_KTLS:
1635 #ifndef OPENSSL_NO_KTLS
1636 enable_ktls = 1;
1637 #endif
1638 break;
1639 case OPT_SENDFILE:
1640 #ifndef OPENSSL_NO_KTLS
1641 use_sendfile = 1;
1642 #endif
1643 break;
1644 case OPT_IGNORE_UNEXPECTED_EOF:
1645 ignore_unexpected_eof = 1;
1646 break;
1647 }
1648 }
1649
1650 /* No extra arguments. */
1651 if (!opt_check_rest_arg(NULL))
1652 goto opthelp;
1653
1654 if (!app_RAND_load())
1655 goto end;
1656
1657 #ifndef OPENSSL_NO_NEXTPROTONEG
1658 if (min_version == TLS1_3_VERSION && next_proto_neg_in != NULL) {
1659 BIO_printf(bio_err, "Cannot supply -nextprotoneg with TLSv1.3\n");
1660 goto opthelp;
1661 }
1662 #endif
1663 #ifndef OPENSSL_NO_DTLS
1664 if (www && socket_type == SOCK_DGRAM) {
1665 BIO_printf(bio_err, "Can't use -HTTP, -www or -WWW with DTLS\n");
1666 goto end;
1667 }
1668
1669 if (dtlslisten && socket_type != SOCK_DGRAM) {
1670 BIO_printf(bio_err, "Can only use -listen with DTLS\n");
1671 goto end;
1672 }
1673 #endif
1674
1675 if (stateless && socket_type != SOCK_STREAM) {
1676 BIO_printf(bio_err, "Can only use --stateless with TLS\n");
1677 goto end;
1678 }
1679
1680 #ifdef AF_UNIX
1681 if (socket_family == AF_UNIX && socket_type != SOCK_STREAM) {
1682 BIO_printf(bio_err,
1683 "Can't use unix sockets and datagrams together\n");
1684 goto end;
1685 }
1686 #endif
1687 if (early_data && (www > 0 || rev)) {
1688 BIO_printf(bio_err,
1689 "Can't use -early_data in combination with -www, -WWW, -HTTP, or -rev\n");
1690 goto end;
1691 }
1692
1693 #ifndef OPENSSL_NO_SCTP
1694 if (protocol == IPPROTO_SCTP) {
1695 if (socket_type != SOCK_DGRAM) {
1696 BIO_printf(bio_err, "Can't use -sctp without DTLS\n");
1697 goto end;
1698 }
1699 /* SCTP is unusual. It uses DTLS over a SOCK_STREAM protocol */
1700 socket_type = SOCK_STREAM;
1701 }
1702 #endif
1703
1704 #ifndef OPENSSL_NO_KTLS
1705 if (use_sendfile && enable_ktls == 0) {
1706 BIO_printf(bio_out, "Warning: -sendfile depends on -ktls, enabling -ktls now.\n");
1707 enable_ktls = 1;
1708 }
1709
1710 if (use_sendfile && www <= 1) {
1711 BIO_printf(bio_err, "Can't use -sendfile without -WWW or -HTTP\n");
1712 goto end;
1713 }
1714 #endif
1715
1716 if (!app_passwd(passarg, dpassarg, &pass, &dpass)) {
1717 BIO_printf(bio_err, "Error getting password\n");
1718 goto end;
1719 }
1720
1721 if (s_key_file == NULL)
1722 s_key_file = s_cert_file;
1723
1724 if (s_key_file2 == NULL)
1725 s_key_file2 = s_cert_file2;
1726
1727 if (!load_excert(&exc))
1728 goto end;
1729
1730 if (nocert == 0) {
1731 s_key = load_key(s_key_file, s_key_format, 0, pass, engine,
1732 "server certificate private key");
1733 if (s_key == NULL)
1734 goto end;
1735
1736 s_cert = load_cert_pass(s_cert_file, s_cert_format, 1, pass,
1737 "server certificate");
1738
1739 if (s_cert == NULL)
1740 goto end;
1741 if (s_chain_file != NULL) {
1742 if (!load_certs(s_chain_file, 0, &s_chain, NULL,
1743 "server certificate chain"))
1744 goto end;
1745 }
1746
1747 if (tlsextcbp.servername != NULL) {
1748 s_key2 = load_key(s_key_file2, s_key_format, 0, pass, engine,
1749 "second server certificate private key");
1750 if (s_key2 == NULL)
1751 goto end;
1752
1753 s_cert2 = load_cert_pass(s_cert_file2, s_cert_format, 1, pass,
1754 "second server certificate");
1755
1756 if (s_cert2 == NULL)
1757 goto end;
1758 }
1759 }
1760 #if !defined(OPENSSL_NO_NEXTPROTONEG)
1761 if (next_proto_neg_in) {
1762 next_proto.data = next_protos_parse(&next_proto.len, next_proto_neg_in);
1763 if (next_proto.data == NULL)
1764 goto end;
1765 }
1766 #endif
1767 alpn_ctx.data = NULL;
1768 if (alpn_in) {
1769 alpn_ctx.data = next_protos_parse(&alpn_ctx.len, alpn_in);
1770 if (alpn_ctx.data == NULL)
1771 goto end;
1772 }
1773
1774 if (crl_file != NULL) {
1775 X509_CRL *crl;
1776 crl = load_crl(crl_file, crl_format, 0, "CRL");
1777 if (crl == NULL)
1778 goto end;
1779 crls = sk_X509_CRL_new_null();
1780 if (crls == NULL || !sk_X509_CRL_push(crls, crl)) {
1781 BIO_puts(bio_err, "Error adding CRL\n");
1782 ERR_print_errors(bio_err);
1783 X509_CRL_free(crl);
1784 goto end;
1785 }
1786 }
1787
1788 if (s_dcert_file != NULL) {
1789
1790 if (s_dkey_file == NULL)
1791 s_dkey_file = s_dcert_file;
1792
1793 s_dkey = load_key(s_dkey_file, s_dkey_format,
1794 0, dpass, engine, "second certificate private key");
1795 if (s_dkey == NULL)
1796 goto end;
1797
1798 s_dcert = load_cert_pass(s_dcert_file, s_dcert_format, 1, dpass,
1799 "second server certificate");
1800
1801 if (s_dcert == NULL) {
1802 ERR_print_errors(bio_err);
1803 goto end;
1804 }
1805 if (s_dchain_file != NULL) {
1806 if (!load_certs(s_dchain_file, 0, &s_dchain, NULL,
1807 "second server certificate chain"))
1808 goto end;
1809 }
1810
1811 }
1812
1813 if (bio_s_out == NULL) {
1814 if (s_quiet && !s_debug) {
1815 bio_s_out = BIO_new(BIO_s_null());
1816 if (s_msg && bio_s_msg == NULL)
1817 bio_s_msg = dup_bio_out(FORMAT_TEXT);
1818 } else {
1819 if (bio_s_out == NULL)
1820 bio_s_out = dup_bio_out(FORMAT_TEXT);
1821 }
1822 }
1823 if (nocert) {
1824 s_cert_file = NULL;
1825 s_key_file = NULL;
1826 s_dcert_file = NULL;
1827 s_dkey_file = NULL;
1828 s_cert_file2 = NULL;
1829 s_key_file2 = NULL;
1830 }
1831
1832 ctx = SSL_CTX_new_ex(app_get0_libctx(), app_get0_propq(), meth);
1833 if (ctx == NULL) {
1834 ERR_print_errors(bio_err);
1835 goto end;
1836 }
1837
1838 SSL_CTX_clear_mode(ctx, SSL_MODE_AUTO_RETRY);
1839
1840 if (sdebug)
1841 ssl_ctx_security_debug(ctx, sdebug);
1842
1843 if (!config_ctx(cctx, ssl_args, ctx))
1844 goto end;
1845
1846 if (ssl_config) {
1847 if (SSL_CTX_config(ctx, ssl_config) == 0) {
1848 BIO_printf(bio_err, "Error using configuration \"%s\"\n",
1849 ssl_config);
1850 ERR_print_errors(bio_err);
1851 goto end;
1852 }
1853 }
1854 #ifndef OPENSSL_NO_SCTP
1855 if (protocol == IPPROTO_SCTP && sctp_label_bug == 1)
1856 SSL_CTX_set_mode(ctx, SSL_MODE_DTLS_SCTP_LABEL_LENGTH_BUG);
1857 #endif
1858
1859 if (min_version != 0
1860 && SSL_CTX_set_min_proto_version(ctx, min_version) == 0)
1861 goto end;
1862 if (max_version != 0
1863 && SSL_CTX_set_max_proto_version(ctx, max_version) == 0)
1864 goto end;
1865
1866 if (session_id_prefix) {
1867 if (strlen(session_id_prefix) >= 32)
1868 BIO_printf(bio_err,
1869 "warning: id_prefix is too long, only one new session will be possible\n");
1870 if (!SSL_CTX_set_generate_session_id(ctx, generate_session_id)) {
1871 BIO_printf(bio_err, "error setting 'id_prefix'\n");
1872 ERR_print_errors(bio_err);
1873 goto end;
1874 }
1875 BIO_printf(bio_err, "id_prefix '%s' set.\n", session_id_prefix);
1876 }
1877 if (exc != NULL)
1878 ssl_ctx_set_excert(ctx, exc);
1879
1880 if (state)
1881 SSL_CTX_set_info_callback(ctx, apps_ssl_info_callback);
1882 if (no_cache)
1883 SSL_CTX_set_session_cache_mode(ctx, SSL_SESS_CACHE_OFF);
1884 else if (ext_cache)
1885 init_session_cache_ctx(ctx);
1886 else
1887 SSL_CTX_sess_set_cache_size(ctx, 128);
1888
1889 if (async) {
1890 SSL_CTX_set_mode(ctx, SSL_MODE_ASYNC);
1891 }
1892
1893 if (no_ca_names) {
1894 SSL_CTX_set_options(ctx, SSL_OP_DISABLE_TLSEXT_CA_NAMES);
1895 }
1896
1897 if (ignore_unexpected_eof)
1898 SSL_CTX_set_options(ctx, SSL_OP_IGNORE_UNEXPECTED_EOF);
1899 #ifndef OPENSSL_NO_KTLS
1900 if (enable_ktls)
1901 SSL_CTX_set_options(ctx, SSL_OP_ENABLE_KTLS);
1902 #endif
1903
1904 if (max_send_fragment > 0
1905 && !SSL_CTX_set_max_send_fragment(ctx, max_send_fragment)) {
1906 BIO_printf(bio_err, "%s: Max send fragment size %u is out of permitted range\n",
1907 prog, max_send_fragment);
1908 goto end;
1909 }
1910
1911 if (split_send_fragment > 0
1912 && !SSL_CTX_set_split_send_fragment(ctx, split_send_fragment)) {
1913 BIO_printf(bio_err, "%s: Split send fragment size %u is out of permitted range\n",
1914 prog, split_send_fragment);
1915 goto end;
1916 }
1917 if (max_pipelines > 0
1918 && !SSL_CTX_set_max_pipelines(ctx, max_pipelines)) {
1919 BIO_printf(bio_err, "%s: Max pipelines %u is out of permitted range\n",
1920 prog, max_pipelines);
1921 goto end;
1922 }
1923
1924 if (read_buf_len > 0) {
1925 SSL_CTX_set_default_read_buffer_len(ctx, read_buf_len);
1926 }
1927 #ifndef OPENSSL_NO_SRTP
1928 if (srtp_profiles != NULL) {
1929 /* Returns 0 on success! */
1930 if (SSL_CTX_set_tlsext_use_srtp(ctx, srtp_profiles) != 0) {
1931 BIO_printf(bio_err, "Error setting SRTP profile\n");
1932 ERR_print_errors(bio_err);
1933 goto end;
1934 }
1935 }
1936 #endif
1937
1938 if (!ctx_set_verify_locations(ctx, CAfile, noCAfile, CApath, noCApath,
1939 CAstore, noCAstore)) {
1940 ERR_print_errors(bio_err);
1941 goto end;
1942 }
1943 if (vpmtouched && !SSL_CTX_set1_param(ctx, vpm)) {
1944 BIO_printf(bio_err, "Error setting verify params\n");
1945 ERR_print_errors(bio_err);
1946 goto end;
1947 }
1948
1949 ssl_ctx_add_crls(ctx, crls, 0);
1950
1951 if (!ssl_load_stores(ctx,
1952 vfyCApath, vfyCAfile, vfyCAstore,
1953 chCApath, chCAfile, chCAstore,
1954 crls, crl_download)) {
1955 BIO_printf(bio_err, "Error loading store locations\n");
1956 ERR_print_errors(bio_err);
1957 goto end;
1958 }
1959
1960 if (s_cert2) {
1961 ctx2 = SSL_CTX_new_ex(app_get0_libctx(), app_get0_propq(), meth);
1962 if (ctx2 == NULL) {
1963 ERR_print_errors(bio_err);
1964 goto end;
1965 }
1966 }
1967
1968 if (ctx2 != NULL) {
1969 BIO_printf(bio_s_out, "Setting secondary ctx parameters\n");
1970
1971 if (sdebug)
1972 ssl_ctx_security_debug(ctx2, sdebug);
1973
1974 if (session_id_prefix) {
1975 if (strlen(session_id_prefix) >= 32)
1976 BIO_printf(bio_err,
1977 "warning: id_prefix is too long, only one new session will be possible\n");
1978 if (!SSL_CTX_set_generate_session_id(ctx2, generate_session_id)) {
1979 BIO_printf(bio_err, "error setting 'id_prefix'\n");
1980 ERR_print_errors(bio_err);
1981 goto end;
1982 }
1983 BIO_printf(bio_err, "id_prefix '%s' set.\n", session_id_prefix);
1984 }
1985 if (exc != NULL)
1986 ssl_ctx_set_excert(ctx2, exc);
1987
1988 if (state)
1989 SSL_CTX_set_info_callback(ctx2, apps_ssl_info_callback);
1990
1991 if (no_cache)
1992 SSL_CTX_set_session_cache_mode(ctx2, SSL_SESS_CACHE_OFF);
1993 else if (ext_cache)
1994 init_session_cache_ctx(ctx2);
1995 else
1996 SSL_CTX_sess_set_cache_size(ctx2, 128);
1997
1998 if (async)
1999 SSL_CTX_set_mode(ctx2, SSL_MODE_ASYNC);
2000
2001 if (!ctx_set_verify_locations(ctx2, CAfile, noCAfile, CApath,
2002 noCApath, CAstore, noCAstore)) {
2003 ERR_print_errors(bio_err);
2004 goto end;
2005 }
2006 if (vpmtouched && !SSL_CTX_set1_param(ctx2, vpm)) {
2007 BIO_printf(bio_err, "Error setting verify params\n");
2008 ERR_print_errors(bio_err);
2009 goto end;
2010 }
2011
2012 ssl_ctx_add_crls(ctx2, crls, 0);
2013 if (!config_ctx(cctx, ssl_args, ctx2))
2014 goto end;
2015 }
2016 #ifndef OPENSSL_NO_NEXTPROTONEG
2017 if (next_proto.data)
2018 SSL_CTX_set_next_protos_advertised_cb(ctx, next_proto_cb,
2019 &next_proto);
2020 #endif
2021 if (alpn_ctx.data)
2022 SSL_CTX_set_alpn_select_cb(ctx, alpn_cb, &alpn_ctx);
2023
2024 if (!no_dhe) {
2025 EVP_PKEY *dhpkey = NULL;
2026
2027 if (dhfile != NULL)
2028 dhpkey = load_keyparams(dhfile, FORMAT_UNDEF, 0, "DH", "DH parameters");
2029 else if (s_cert_file != NULL)
2030 dhpkey = load_keyparams_suppress(s_cert_file, FORMAT_UNDEF, 0, "DH",
2031 "DH parameters", 1);
2032
2033 if (dhpkey != NULL) {
2034 BIO_printf(bio_s_out, "Setting temp DH parameters\n");
2035 } else {
2036 BIO_printf(bio_s_out, "Using default temp DH parameters\n");
2037 }
2038 (void)BIO_flush(bio_s_out);
2039
2040 if (dhpkey == NULL) {
2041 SSL_CTX_set_dh_auto(ctx, 1);
2042 } else {
2043 /*
2044 * We need 2 references: one for use by ctx and one for use by
2045 * ctx2
2046 */
2047 if (!EVP_PKEY_up_ref(dhpkey)) {
2048 EVP_PKEY_free(dhpkey);
2049 goto end;
2050 }
2051 if (!SSL_CTX_set0_tmp_dh_pkey(ctx, dhpkey)) {
2052 BIO_puts(bio_err, "Error setting temp DH parameters\n");
2053 ERR_print_errors(bio_err);
2054 /* Free 2 references */
2055 EVP_PKEY_free(dhpkey);
2056 EVP_PKEY_free(dhpkey);
2057 goto end;
2058 }
2059 }
2060
2061 if (ctx2 != NULL) {
2062 if (dhfile != NULL) {
2063 EVP_PKEY *dhpkey2 = load_keyparams_suppress(s_cert_file2,
2064 FORMAT_UNDEF,
2065 0, "DH",
2066 "DH parameters", 1);
2067
2068 if (dhpkey2 != NULL) {
2069 BIO_printf(bio_s_out, "Setting temp DH parameters\n");
2070 (void)BIO_flush(bio_s_out);
2071
2072 EVP_PKEY_free(dhpkey);
2073 dhpkey = dhpkey2;
2074 }
2075 }
2076 if (dhpkey == NULL) {
2077 SSL_CTX_set_dh_auto(ctx2, 1);
2078 } else if (!SSL_CTX_set0_tmp_dh_pkey(ctx2, dhpkey)) {
2079 BIO_puts(bio_err, "Error setting temp DH parameters\n");
2080 ERR_print_errors(bio_err);
2081 EVP_PKEY_free(dhpkey);
2082 goto end;
2083 }
2084 dhpkey = NULL;
2085 }
2086 EVP_PKEY_free(dhpkey);
2087 }
2088
2089 if (!set_cert_key_stuff(ctx, s_cert, s_key, s_chain, build_chain))
2090 goto end;
2091
2092 if (s_serverinfo_file != NULL
2093 && !SSL_CTX_use_serverinfo_file(ctx, s_serverinfo_file)) {
2094 ERR_print_errors(bio_err);
2095 goto end;
2096 }
2097
2098 if (ctx2 != NULL
2099 && !set_cert_key_stuff(ctx2, s_cert2, s_key2, NULL, build_chain))
2100 goto end;
2101
2102 if (s_dcert != NULL) {
2103 if (!set_cert_key_stuff(ctx, s_dcert, s_dkey, s_dchain, build_chain))
2104 goto end;
2105 }
2106
2107 if (no_resume_ephemeral) {
2108 SSL_CTX_set_not_resumable_session_callback(ctx,
2109 not_resumable_sess_cb);
2110
2111 if (ctx2 != NULL)
2112 SSL_CTX_set_not_resumable_session_callback(ctx2,
2113 not_resumable_sess_cb);
2114 }
2115 #ifndef OPENSSL_NO_PSK
2116 if (psk_key != NULL) {
2117 if (s_debug)
2118 BIO_printf(bio_s_out, "PSK key given, setting server callback\n");
2119 SSL_CTX_set_psk_server_callback(ctx, psk_server_cb);
2120 }
2121
2122 if (psk_identity_hint != NULL) {
2123 if (min_version == TLS1_3_VERSION) {
2124 BIO_printf(bio_s_out, "PSK warning: there is NO identity hint in TLSv1.3\n");
2125 } else {
2126 if (!SSL_CTX_use_psk_identity_hint(ctx, psk_identity_hint)) {
2127 BIO_printf(bio_err, "error setting PSK identity hint to context\n");
2128 ERR_print_errors(bio_err);
2129 goto end;
2130 }
2131 }
2132 }
2133 #endif
2134 if (psksessf != NULL) {
2135 BIO *stmp = BIO_new_file(psksessf, "r");
2136
2137 if (stmp == NULL) {
2138 BIO_printf(bio_err, "Can't open PSK session file %s\n", psksessf);
2139 ERR_print_errors(bio_err);
2140 goto end;
2141 }
2142 psksess = PEM_read_bio_SSL_SESSION(stmp, NULL, 0, NULL);
2143 BIO_free(stmp);
2144 if (psksess == NULL) {
2145 BIO_printf(bio_err, "Can't read PSK session file %s\n", psksessf);
2146 ERR_print_errors(bio_err);
2147 goto end;
2148 }
2149
2150 }
2151
2152 if (psk_key != NULL || psksess != NULL)
2153 SSL_CTX_set_psk_find_session_callback(ctx, psk_find_session_cb);
2154
2155 SSL_CTX_set_verify(ctx, s_server_verify, verify_callback);
2156 if (!SSL_CTX_set_session_id_context(ctx,
2157 (void *)&s_server_session_id_context,
2158 sizeof(s_server_session_id_context))) {
2159 BIO_printf(bio_err, "error setting session id context\n");
2160 ERR_print_errors(bio_err);
2161 goto end;
2162 }
2163
2164 /* Set DTLS cookie generation and verification callbacks */
2165 SSL_CTX_set_cookie_generate_cb(ctx, generate_cookie_callback);
2166 SSL_CTX_set_cookie_verify_cb(ctx, verify_cookie_callback);
2167
2168 /* Set TLS1.3 cookie generation and verification callbacks */
2169 SSL_CTX_set_stateless_cookie_generate_cb(ctx, generate_stateless_cookie_callback);
2170 SSL_CTX_set_stateless_cookie_verify_cb(ctx, verify_stateless_cookie_callback);
2171
2172 if (ctx2 != NULL) {
2173 SSL_CTX_set_verify(ctx2, s_server_verify, verify_callback);
2174 if (!SSL_CTX_set_session_id_context(ctx2,
2175 (void *)&s_server_session_id_context,
2176 sizeof(s_server_session_id_context))) {
2177 BIO_printf(bio_err, "error setting session id context\n");
2178 ERR_print_errors(bio_err);
2179 goto end;
2180 }
2181 tlsextcbp.biodebug = bio_s_out;
2182 SSL_CTX_set_tlsext_servername_callback(ctx2, ssl_servername_cb);
2183 SSL_CTX_set_tlsext_servername_arg(ctx2, &tlsextcbp);
2184 SSL_CTX_set_tlsext_servername_callback(ctx, ssl_servername_cb);
2185 SSL_CTX_set_tlsext_servername_arg(ctx, &tlsextcbp);
2186 }
2187
2188 #ifndef OPENSSL_NO_SRP
2189 if (srp_verifier_file != NULL) {
2190 if (!set_up_srp_verifier_file(ctx, &srp_callback_parm, srpuserseed,
2191 srp_verifier_file))
2192 goto end;
2193 } else
2194 #endif
2195 if (CAfile != NULL) {
2196 SSL_CTX_set_client_CA_list(ctx, SSL_load_client_CA_file(CAfile));
2197
2198 if (ctx2)
2199 SSL_CTX_set_client_CA_list(ctx2, SSL_load_client_CA_file(CAfile));
2200 }
2201 #ifndef OPENSSL_NO_OCSP
2202 if (s_tlsextstatus) {
2203 SSL_CTX_set_tlsext_status_cb(ctx, cert_status_cb);
2204 SSL_CTX_set_tlsext_status_arg(ctx, &tlscstatp);
2205 if (ctx2) {
2206 SSL_CTX_set_tlsext_status_cb(ctx2, cert_status_cb);
2207 SSL_CTX_set_tlsext_status_arg(ctx2, &tlscstatp);
2208 }
2209 }
2210 #endif
2211 if (set_keylog_file(ctx, keylog_file))
2212 goto end;
2213
2214 if (max_early_data >= 0)
2215 SSL_CTX_set_max_early_data(ctx, max_early_data);
2216 if (recv_max_early_data >= 0)
2217 SSL_CTX_set_recv_max_early_data(ctx, recv_max_early_data);
2218
2219 if (rev)
2220 server_cb = rev_body;
2221 else if (www)
2222 server_cb = www_body;
2223 else
2224 server_cb = sv_body;
2225 #ifdef AF_UNIX
2226 if (socket_family == AF_UNIX
2227 && unlink_unix_path)
2228 unlink(host);
2229 #endif
2230 do_server(&accept_socket, host, port, socket_family, socket_type, protocol,
2231 server_cb, context, naccept, bio_s_out);
2232 print_stats(bio_s_out, ctx);
2233 ret = 0;
2234 end:
2235 SSL_CTX_free(ctx);
2236 SSL_SESSION_free(psksess);
2237 set_keylog_file(NULL, NULL);
2238 X509_free(s_cert);
2239 sk_X509_CRL_pop_free(crls, X509_CRL_free);
2240 X509_free(s_dcert);
2241 EVP_PKEY_free(s_key);
2242 EVP_PKEY_free(s_dkey);
2243 sk_X509_pop_free(s_chain, X509_free);
2244 sk_X509_pop_free(s_dchain, X509_free);
2245 OPENSSL_free(pass);
2246 OPENSSL_free(dpass);
2247 OPENSSL_free(host);
2248 OPENSSL_free(port);
2249 X509_VERIFY_PARAM_free(vpm);
2250 free_sessions();
2251 OPENSSL_free(tlscstatp.host);
2252 OPENSSL_free(tlscstatp.port);
2253 OPENSSL_free(tlscstatp.path);
2254 SSL_CTX_free(ctx2);
2255 X509_free(s_cert2);
2256 EVP_PKEY_free(s_key2);
2257 #ifndef OPENSSL_NO_NEXTPROTONEG
2258 OPENSSL_free(next_proto.data);
2259 #endif
2260 OPENSSL_free(alpn_ctx.data);
2261 ssl_excert_free(exc);
2262 sk_OPENSSL_STRING_free(ssl_args);
2263 SSL_CONF_CTX_free(cctx);
2264 release_engine(engine);
2265 BIO_free(bio_s_out);
2266 bio_s_out = NULL;
2267 BIO_free(bio_s_msg);
2268 bio_s_msg = NULL;
2269 #ifdef CHARSET_EBCDIC
2270 BIO_meth_free(methods_ebcdic);
2271 #endif
2272 return ret;
2273 }
2274
2275 static void print_stats(BIO *bio, SSL_CTX *ssl_ctx)
2276 {
2277 BIO_printf(bio, "%4ld items in the session cache\n",
2278 SSL_CTX_sess_number(ssl_ctx));
2279 BIO_printf(bio, "%4ld client connects (SSL_connect())\n",
2280 SSL_CTX_sess_connect(ssl_ctx));
2281 BIO_printf(bio, "%4ld client renegotiates (SSL_connect())\n",
2282 SSL_CTX_sess_connect_renegotiate(ssl_ctx));
2283 BIO_printf(bio, "%4ld client connects that finished\n",
2284 SSL_CTX_sess_connect_good(ssl_ctx));
2285 BIO_printf(bio, "%4ld server accepts (SSL_accept())\n",
2286 SSL_CTX_sess_accept(ssl_ctx));
2287 BIO_printf(bio, "%4ld server renegotiates (SSL_accept())\n",
2288 SSL_CTX_sess_accept_renegotiate(ssl_ctx));
2289 BIO_printf(bio, "%4ld server accepts that finished\n",
2290 SSL_CTX_sess_accept_good(ssl_ctx));
2291 BIO_printf(bio, "%4ld session cache hits\n", SSL_CTX_sess_hits(ssl_ctx));
2292 BIO_printf(bio, "%4ld session cache misses\n",
2293 SSL_CTX_sess_misses(ssl_ctx));
2294 BIO_printf(bio, "%4ld session cache timeouts\n",
2295 SSL_CTX_sess_timeouts(ssl_ctx));
2296 BIO_printf(bio, "%4ld callback cache hits\n",
2297 SSL_CTX_sess_cb_hits(ssl_ctx));
2298 BIO_printf(bio, "%4ld cache full overflows (%ld allowed)\n",
2299 SSL_CTX_sess_cache_full(ssl_ctx),
2300 SSL_CTX_sess_get_cache_size(ssl_ctx));
2301 }
2302
2303 static int sv_body(int s, int stype, int prot, unsigned char *context)
2304 {
2305 char *buf = NULL;
2306 fd_set readfds;
2307 int ret = 1, width;
2308 int k, i;
2309 unsigned long l;
2310 SSL *con = NULL;
2311 BIO *sbio;
2312 struct timeval timeout;
2313 #if !(defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS))
2314 struct timeval *timeoutp;
2315 #endif
2316 #ifndef OPENSSL_NO_DTLS
2317 # ifndef OPENSSL_NO_SCTP
2318 int isdtls = (stype == SOCK_DGRAM || prot == IPPROTO_SCTP);
2319 # else
2320 int isdtls = (stype == SOCK_DGRAM);
2321 # endif
2322 #endif
2323
2324 buf = app_malloc(bufsize, "server buffer");
2325 if (s_nbio) {
2326 if (!BIO_socket_nbio(s, 1))
2327 ERR_print_errors(bio_err);
2328 else if (!s_quiet)
2329 BIO_printf(bio_err, "Turned on non blocking io\n");
2330 }
2331
2332 con = SSL_new(ctx);
2333 if (con == NULL) {
2334 ret = -1;
2335 goto err;
2336 }
2337
2338 if (s_tlsextdebug) {
2339 SSL_set_tlsext_debug_callback(con, tlsext_cb);
2340 SSL_set_tlsext_debug_arg(con, bio_s_out);
2341 }
2342
2343 if (context != NULL
2344 && !SSL_set_session_id_context(con, context,
2345 strlen((char *)context))) {
2346 BIO_printf(bio_err, "Error setting session id context\n");
2347 ret = -1;
2348 goto err;
2349 }
2350
2351 if (!SSL_clear(con)) {
2352 BIO_printf(bio_err, "Error clearing SSL connection\n");
2353 ret = -1;
2354 goto err;
2355 }
2356 #ifndef OPENSSL_NO_DTLS
2357 if (isdtls) {
2358 # ifndef OPENSSL_NO_SCTP
2359 if (prot == IPPROTO_SCTP)
2360 sbio = BIO_new_dgram_sctp(s, BIO_NOCLOSE);
2361 else
2362 # endif
2363 sbio = BIO_new_dgram(s, BIO_NOCLOSE);
2364
2365 if (enable_timeouts) {
2366 timeout.tv_sec = 0;
2367 timeout.tv_usec = DGRAM_RCV_TIMEOUT;
2368 BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_RECV_TIMEOUT, 0, &timeout);
2369
2370 timeout.tv_sec = 0;
2371 timeout.tv_usec = DGRAM_SND_TIMEOUT;
2372 BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_SEND_TIMEOUT, 0, &timeout);
2373 }
2374
2375 if (socket_mtu) {
2376 if (socket_mtu < DTLS_get_link_min_mtu(con)) {
2377 BIO_printf(bio_err, "MTU too small. Must be at least %ld\n",
2378 DTLS_get_link_min_mtu(con));
2379 ret = -1;
2380 BIO_free(sbio);
2381 goto err;
2382 }
2383 SSL_set_options(con, SSL_OP_NO_QUERY_MTU);
2384 if (!DTLS_set_link_mtu(con, socket_mtu)) {
2385 BIO_printf(bio_err, "Failed to set MTU\n");
2386 ret = -1;
2387 BIO_free(sbio);
2388 goto err;
2389 }
2390 } else
2391 /* want to do MTU discovery */
2392 BIO_ctrl(sbio, BIO_CTRL_DGRAM_MTU_DISCOVER, 0, NULL);
2393
2394 # ifndef OPENSSL_NO_SCTP
2395 if (prot != IPPROTO_SCTP)
2396 # endif
2397 /* Turn on cookie exchange. Not necessary for SCTP */
2398 SSL_set_options(con, SSL_OP_COOKIE_EXCHANGE);
2399 } else
2400 #endif
2401 sbio = BIO_new_socket(s, BIO_NOCLOSE);
2402
2403 if (sbio == NULL) {
2404 BIO_printf(bio_err, "Unable to create BIO\n");
2405 ERR_print_errors(bio_err);
2406 goto err;
2407 }
2408
2409 if (s_nbio_test) {
2410 BIO *test;
2411
2412 test = BIO_new(BIO_f_nbio_test());
2413 sbio = BIO_push(test, sbio);
2414 }
2415
2416 SSL_set_bio(con, sbio, sbio);
2417 SSL_set_accept_state(con);
2418 /* SSL_set_fd(con,s); */
2419
2420 if (s_debug) {
2421 BIO_set_callback_ex(SSL_get_rbio(con), bio_dump_callback);
2422 BIO_set_callback_arg(SSL_get_rbio(con), (char *)bio_s_out);
2423 }
2424 if (s_msg) {
2425 #ifndef OPENSSL_NO_SSL_TRACE
2426 if (s_msg == 2)
2427 SSL_set_msg_callback(con, SSL_trace);
2428 else
2429 #endif
2430 SSL_set_msg_callback(con, msg_cb);
2431 SSL_set_msg_callback_arg(con, bio_s_msg ? bio_s_msg : bio_s_out);
2432 }
2433
2434 if (s_tlsextdebug) {
2435 SSL_set_tlsext_debug_callback(con, tlsext_cb);
2436 SSL_set_tlsext_debug_arg(con, bio_s_out);
2437 }
2438
2439 if (early_data) {
2440 int write_header = 1, edret = SSL_READ_EARLY_DATA_ERROR;
2441 size_t readbytes;
2442
2443 while (edret != SSL_READ_EARLY_DATA_FINISH) {
2444 for (;;) {
2445 edret = SSL_read_early_data(con, buf, bufsize, &readbytes);
2446 if (edret != SSL_READ_EARLY_DATA_ERROR)
2447 break;
2448
2449 switch (SSL_get_error(con, 0)) {
2450 case SSL_ERROR_WANT_WRITE:
2451 case SSL_ERROR_WANT_ASYNC:
2452 case SSL_ERROR_WANT_READ:
2453 /* Just keep trying - busy waiting */
2454 continue;
2455 default:
2456 BIO_printf(bio_err, "Error reading early data\n");
2457 ERR_print_errors(bio_err);
2458 goto err;
2459 }
2460 }
2461 if (readbytes > 0) {
2462 if (write_header) {
2463 BIO_printf(bio_s_out, "Early data received:\n");
2464 write_header = 0;
2465 }
2466 raw_write_stdout(buf, (unsigned int)readbytes);
2467 (void)BIO_flush(bio_s_out);
2468 }
2469 }
2470 if (write_header) {
2471 if (SSL_get_early_data_status(con) == SSL_EARLY_DATA_NOT_SENT)
2472 BIO_printf(bio_s_out, "No early data received\n");
2473 else
2474 BIO_printf(bio_s_out, "Early data was rejected\n");
2475 } else {
2476 BIO_printf(bio_s_out, "\nEnd of early data\n");
2477 }
2478 if (SSL_is_init_finished(con))
2479 print_connection_info(con);
2480 }
2481
2482 if (fileno_stdin() > s)
2483 width = fileno_stdin() + 1;
2484 else
2485 width = s + 1;
2486 for (;;) {
2487 int read_from_terminal;
2488 int read_from_sslcon;
2489
2490 read_from_terminal = 0;
2491 read_from_sslcon = SSL_has_pending(con)
2492 || (async && SSL_waiting_for_async(con));
2493
2494 if (!read_from_sslcon) {
2495 FD_ZERO(&readfds);
2496 #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS)
2497 openssl_fdset(fileno_stdin(), &readfds);
2498 #endif
2499 openssl_fdset(s, &readfds);
2500 /*
2501 * Note: under VMS with SOCKETSHR the second parameter is
2502 * currently of type (int *) whereas under other systems it is
2503 * (void *) if you don't have a cast it will choke the compiler:
2504 * if you do have a cast then you can either go for (int *) or
2505 * (void *).
2506 */
2507 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
2508 /*
2509 * Under DOS (non-djgpp) and Windows we can't select on stdin:
2510 * only on sockets. As a workaround we timeout the select every
2511 * second and check for any keypress. In a proper Windows
2512 * application we wouldn't do this because it is inefficient.
2513 */
2514 timeout.tv_sec = 1;
2515 timeout.tv_usec = 0;
2516 i = select(width, (void *)&readfds, NULL, NULL, &timeout);
2517 if (has_stdin_waiting())
2518 read_from_terminal = 1;
2519 if ((i < 0) || (!i && !read_from_terminal))
2520 continue;
2521 #else
2522 if (SSL_is_dtls(con) && DTLSv1_get_timeout(con, &timeout))
2523 timeoutp = &timeout;
2524 else
2525 timeoutp = NULL;
2526
2527 i = select(width, (void *)&readfds, NULL, NULL, timeoutp);
2528
2529 if ((SSL_is_dtls(con)) && DTLSv1_handle_timeout(con) > 0)
2530 BIO_printf(bio_err, "TIMEOUT occurred\n");
2531
2532 if (i <= 0)
2533 continue;
2534 if (FD_ISSET(fileno_stdin(), &readfds))
2535 read_from_terminal = 1;
2536 #endif
2537 if (FD_ISSET(s, &readfds))
2538 read_from_sslcon = 1;
2539 }
2540 if (read_from_terminal) {
2541 if (s_crlf) {
2542 int j, lf_num;
2543
2544 i = raw_read_stdin(buf, bufsize / 2);
2545 lf_num = 0;
2546 /* both loops are skipped when i <= 0 */
2547 for (j = 0; j < i; j++)
2548 if (buf[j] == '\n')
2549 lf_num++;
2550 for (j = i - 1; j >= 0; j--) {
2551 buf[j + lf_num] = buf[j];
2552 if (buf[j] == '\n') {
2553 lf_num--;
2554 i++;
2555 buf[j + lf_num] = '\r';
2556 }
2557 }
2558 assert(lf_num == 0);
2559 } else {
2560 i = raw_read_stdin(buf, bufsize);
2561 }
2562
2563 if (!s_quiet && !s_brief) {
2564 if ((i <= 0) || (buf[0] == 'Q')) {
2565 BIO_printf(bio_s_out, "DONE\n");
2566 (void)BIO_flush(bio_s_out);
2567 BIO_closesocket(s);
2568 close_accept_socket();
2569 ret = -11;
2570 goto err;
2571 }
2572 if ((i <= 0) || (buf[0] == 'q')) {
2573 BIO_printf(bio_s_out, "DONE\n");
2574 (void)BIO_flush(bio_s_out);
2575 if (SSL_version(con) != DTLS1_VERSION)
2576 BIO_closesocket(s);
2577 /*
2578 * close_accept_socket(); ret= -11;
2579 */
2580 goto err;
2581 }
2582 if ((buf[0] == 'r') && ((buf[1] == '\n') || (buf[1] == '\r'))) {
2583 SSL_renegotiate(con);
2584 i = SSL_do_handshake(con);
2585 printf("SSL_do_handshake -> %d\n", i);
2586 i = 0; /* 13; */
2587 continue;
2588 }
2589 if ((buf[0] == 'R') && ((buf[1] == '\n') || (buf[1] == '\r'))) {
2590 SSL_set_verify(con,
2591 SSL_VERIFY_PEER | SSL_VERIFY_CLIENT_ONCE,
2592 NULL);
2593 SSL_renegotiate(con);
2594 i = SSL_do_handshake(con);
2595 printf("SSL_do_handshake -> %d\n", i);
2596 i = 0; /* 13; */
2597 continue;
2598 }
2599 if ((buf[0] == 'K' || buf[0] == 'k')
2600 && ((buf[1] == '\n') || (buf[1] == '\r'))) {
2601 SSL_key_update(con, buf[0] == 'K' ?
2602 SSL_KEY_UPDATE_REQUESTED
2603 : SSL_KEY_UPDATE_NOT_REQUESTED);
2604 i = SSL_do_handshake(con);
2605 printf("SSL_do_handshake -> %d\n", i);
2606 i = 0;
2607 continue;
2608 }
2609 if (buf[0] == 'c' && ((buf[1] == '\n') || (buf[1] == '\r'))) {
2610 SSL_set_verify(con, SSL_VERIFY_PEER, NULL);
2611 i = SSL_verify_client_post_handshake(con);
2612 if (i == 0) {
2613 printf("Failed to initiate request\n");
2614 ERR_print_errors(bio_err);
2615 } else {
2616 i = SSL_do_handshake(con);
2617 printf("SSL_do_handshake -> %d\n", i);
2618 i = 0;
2619 }
2620 continue;
2621 }
2622 if (buf[0] == 'P') {
2623 static const char str[] = "Lets print some clear text\n";
2624 BIO_write(SSL_get_wbio(con), str, sizeof(str) -1);
2625 }
2626 if (buf[0] == 'S') {
2627 print_stats(bio_s_out, SSL_get_SSL_CTX(con));
2628 }
2629 }
2630 #ifdef CHARSET_EBCDIC
2631 ebcdic2ascii(buf, buf, i);
2632 #endif
2633 l = k = 0;
2634 for (;;) {
2635 /* should do a select for the write */
2636 #ifdef RENEG
2637 static count = 0;
2638 if (++count == 100) {
2639 count = 0;
2640 SSL_renegotiate(con);
2641 }
2642 #endif
2643 k = SSL_write(con, &(buf[l]), (unsigned int)i);
2644 #ifndef OPENSSL_NO_SRP
2645 while (SSL_get_error(con, k) == SSL_ERROR_WANT_X509_LOOKUP) {
2646 BIO_printf(bio_s_out, "LOOKUP renego during write\n");
2647
2648 lookup_srp_user(&srp_callback_parm, bio_s_out);
2649
2650 k = SSL_write(con, &(buf[l]), (unsigned int)i);
2651 }
2652 #endif
2653 switch (SSL_get_error(con, k)) {
2654 case SSL_ERROR_NONE:
2655 break;
2656 case SSL_ERROR_WANT_ASYNC:
2657 BIO_printf(bio_s_out, "Write BLOCK (Async)\n");
2658 (void)BIO_flush(bio_s_out);
2659 wait_for_async(con);
2660 break;
2661 case SSL_ERROR_WANT_WRITE:
2662 case SSL_ERROR_WANT_READ:
2663 case SSL_ERROR_WANT_X509_LOOKUP:
2664 BIO_printf(bio_s_out, "Write BLOCK\n");
2665 (void)BIO_flush(bio_s_out);
2666 break;
2667 case SSL_ERROR_WANT_ASYNC_JOB:
2668 /*
2669 * This shouldn't ever happen in s_server. Treat as an error
2670 */
2671 case SSL_ERROR_SYSCALL:
2672 case SSL_ERROR_SSL:
2673 BIO_printf(bio_s_out, "ERROR\n");
2674 (void)BIO_flush(bio_s_out);
2675 ERR_print_errors(bio_err);
2676 ret = 1;
2677 goto err;
2678 /* break; */
2679 case SSL_ERROR_ZERO_RETURN:
2680 BIO_printf(bio_s_out, "DONE\n");
2681 (void)BIO_flush(bio_s_out);
2682 ret = 1;
2683 goto err;
2684 }
2685 if (k > 0) {
2686 l += k;
2687 i -= k;
2688 }
2689 if (i <= 0)
2690 break;
2691 }
2692 }
2693 if (read_from_sslcon) {
2694 /*
2695 * init_ssl_connection handles all async events itself so if we're
2696 * waiting for async then we shouldn't go back into
2697 * init_ssl_connection
2698 */
2699 if ((!async || !SSL_waiting_for_async(con))
2700 && !SSL_is_init_finished(con)) {
2701 i = init_ssl_connection(con);
2702
2703 if (i < 0) {
2704 ret = 0;
2705 goto err;
2706 } else if (i == 0) {
2707 ret = 1;
2708 goto err;
2709 }
2710 } else {
2711 again:
2712 i = SSL_read(con, (char *)buf, bufsize);
2713 #ifndef OPENSSL_NO_SRP
2714 while (SSL_get_error(con, i) == SSL_ERROR_WANT_X509_LOOKUP) {
2715 BIO_printf(bio_s_out, "LOOKUP renego during read\n");
2716
2717 lookup_srp_user(&srp_callback_parm, bio_s_out);
2718
2719 i = SSL_read(con, (char *)buf, bufsize);
2720 }
2721 #endif
2722 switch (SSL_get_error(con, i)) {
2723 case SSL_ERROR_NONE:
2724 #ifdef CHARSET_EBCDIC
2725 ascii2ebcdic(buf, buf, i);
2726 #endif
2727 raw_write_stdout(buf, (unsigned int)i);
2728 (void)BIO_flush(bio_s_out);
2729 if (SSL_has_pending(con))
2730 goto again;
2731 break;
2732 case SSL_ERROR_WANT_ASYNC:
2733 BIO_printf(bio_s_out, "Read BLOCK (Async)\n");
2734 (void)BIO_flush(bio_s_out);
2735 wait_for_async(con);
2736 break;
2737 case SSL_ERROR_WANT_WRITE:
2738 case SSL_ERROR_WANT_READ:
2739 BIO_printf(bio_s_out, "Read BLOCK\n");
2740 (void)BIO_flush(bio_s_out);
2741 break;
2742 case SSL_ERROR_WANT_ASYNC_JOB:
2743 /*
2744 * This shouldn't ever happen in s_server. Treat as an error
2745 */
2746 case SSL_ERROR_SYSCALL:
2747 case SSL_ERROR_SSL:
2748 BIO_printf(bio_s_out, "ERROR\n");
2749 (void)BIO_flush(bio_s_out);
2750 ERR_print_errors(bio_err);
2751 ret = 1;
2752 goto err;
2753 case SSL_ERROR_ZERO_RETURN:
2754 BIO_printf(bio_s_out, "DONE\n");
2755 (void)BIO_flush(bio_s_out);
2756 ret = 1;
2757 goto err;
2758 }
2759 }
2760 }
2761 }
2762 err:
2763 if (con != NULL) {
2764 BIO_printf(bio_s_out, "shutting down SSL\n");
2765 do_ssl_shutdown(con);
2766 SSL_free(con);
2767 }
2768 BIO_printf(bio_s_out, "CONNECTION CLOSED\n");
2769 OPENSSL_clear_free(buf, bufsize);
2770 return ret;
2771 }
2772
2773 static void close_accept_socket(void)
2774 {
2775 BIO_printf(bio_err, "shutdown accept socket\n");
2776 if (accept_socket >= 0) {
2777 BIO_closesocket(accept_socket);
2778 }
2779 }
2780
2781 static int is_retryable(SSL *con, int i)
2782 {
2783 int err = SSL_get_error(con, i);
2784
2785 /* If it's not a fatal error, it must be retryable */
2786 return (err != SSL_ERROR_SSL)
2787 && (err != SSL_ERROR_SYSCALL)
2788 && (err != SSL_ERROR_ZERO_RETURN);
2789 }
2790
2791 static int init_ssl_connection(SSL *con)
2792 {
2793 int i;
2794 long verify_err;
2795 int retry = 0;
2796
2797 if (dtlslisten || stateless) {
2798 BIO_ADDR *client = NULL;
2799
2800 if (dtlslisten) {
2801 if ((client = BIO_ADDR_new()) == NULL) {
2802 BIO_printf(bio_err, "ERROR - memory\n");
2803 return 0;
2804 }
2805 i = DTLSv1_listen(con, client);
2806 } else {
2807 i = SSL_stateless(con);
2808 }
2809 if (i > 0) {
2810 BIO *wbio;
2811 int fd = -1;
2812
2813 if (dtlslisten) {
2814 wbio = SSL_get_wbio(con);
2815 if (wbio) {
2816 BIO_get_fd(wbio, &fd);
2817 }
2818
2819 if (!wbio || BIO_connect(fd, client, 0) == 0) {
2820 BIO_printf(bio_err, "ERROR - unable to connect\n");
2821 BIO_ADDR_free(client);
2822 return 0;
2823 }
2824
2825 (void)BIO_ctrl_set_connected(wbio, client);
2826 BIO_ADDR_free(client);
2827 dtlslisten = 0;
2828 } else {
2829 stateless = 0;
2830 }
2831 i = SSL_accept(con);
2832 } else {
2833 BIO_ADDR_free(client);
2834 }
2835 } else {
2836 do {
2837 i = SSL_accept(con);
2838
2839 if (i <= 0)
2840 retry = is_retryable(con, i);
2841 #ifdef CERT_CB_TEST_RETRY
2842 {
2843 while (i <= 0
2844 && SSL_get_error(con, i) == SSL_ERROR_WANT_X509_LOOKUP
2845 && SSL_get_state(con) == TLS_ST_SR_CLNT_HELLO) {
2846 BIO_printf(bio_err,
2847 "LOOKUP from certificate callback during accept\n");
2848 i = SSL_accept(con);
2849 if (i <= 0)
2850 retry = is_retryable(con, i);
2851 }
2852 }
2853 #endif
2854
2855 #ifndef OPENSSL_NO_SRP
2856 while (i <= 0
2857 && SSL_get_error(con, i) == SSL_ERROR_WANT_X509_LOOKUP) {
2858 BIO_printf(bio_s_out, "LOOKUP during accept %s\n",
2859 srp_callback_parm.login);
2860
2861 lookup_srp_user(&srp_callback_parm, bio_s_out);
2862
2863 i = SSL_accept(con);
2864 if (i <= 0)
2865 retry = is_retryable(con, i);
2866 }
2867 #endif
2868 } while (i < 0 && SSL_waiting_for_async(con));
2869 }
2870
2871 if (i <= 0) {
2872 if (((dtlslisten || stateless) && i == 0)
2873 || (!dtlslisten && !stateless && retry)) {
2874 BIO_printf(bio_s_out, "DELAY\n");
2875 return 1;
2876 }
2877
2878 BIO_printf(bio_err, "ERROR\n");
2879
2880 verify_err = SSL_get_verify_result(con);
2881 if (verify_err != X509_V_OK) {
2882 BIO_printf(bio_err, "verify error:%s\n",
2883 X509_verify_cert_error_string(verify_err));
2884 }
2885 /* Always print any error messages */
2886 ERR_print_errors(bio_err);
2887 return 0;
2888 }
2889
2890 print_connection_info(con);
2891 return 1;
2892 }
2893
2894 static void print_connection_info(SSL *con)
2895 {
2896 const char *str;
2897 X509 *peer;
2898 char buf[BUFSIZ];
2899 #if !defined(OPENSSL_NO_NEXTPROTONEG)
2900 const unsigned char *next_proto_neg;
2901 unsigned next_proto_neg_len;
2902 #endif
2903 unsigned char *exportedkeymat;
2904 int i;
2905
2906 if (s_brief)
2907 print_ssl_summary(con);
2908
2909 PEM_write_bio_SSL_SESSION(bio_s_out, SSL_get_session(con));
2910
2911 peer = SSL_get0_peer_certificate(con);
2912 if (peer != NULL) {
2913 BIO_printf(bio_s_out, "Client certificate\n");
2914 PEM_write_bio_X509(bio_s_out, peer);
2915 dump_cert_text(bio_s_out, peer);
2916 peer = NULL;
2917 }
2918
2919 if (SSL_get_shared_ciphers(con, buf, sizeof(buf)) != NULL)
2920 BIO_printf(bio_s_out, "Shared ciphers:%s\n", buf);
2921 str = SSL_CIPHER_get_name(SSL_get_current_cipher(con));
2922 ssl_print_sigalgs(bio_s_out, con);
2923 #ifndef OPENSSL_NO_EC
2924 ssl_print_point_formats(bio_s_out, con);
2925 ssl_print_groups(bio_s_out, con, 0);
2926 #endif
2927 print_ca_names(bio_s_out, con);
2928 BIO_printf(bio_s_out, "CIPHER is %s\n", (str != NULL) ? str : "(NONE)");
2929
2930 #if !defined(OPENSSL_NO_NEXTPROTONEG)
2931 SSL_get0_next_proto_negotiated(con, &next_proto_neg, &next_proto_neg_len);
2932 if (next_proto_neg) {
2933 BIO_printf(bio_s_out, "NEXTPROTO is ");
2934 BIO_write(bio_s_out, next_proto_neg, next_proto_neg_len);
2935 BIO_printf(bio_s_out, "\n");
2936 }
2937 #endif
2938 #ifndef OPENSSL_NO_SRTP
2939 {
2940 SRTP_PROTECTION_PROFILE *srtp_profile
2941 = SSL_get_selected_srtp_profile(con);
2942
2943 if (srtp_profile)
2944 BIO_printf(bio_s_out, "SRTP Extension negotiated, profile=%s\n",
2945 srtp_profile->name);
2946 }
2947 #endif
2948 if (SSL_session_reused(con))
2949 BIO_printf(bio_s_out, "Reused session-id\n");
2950
2951 ssl_print_secure_renegotiation_notes(bio_s_out, con);
2952
2953 if ((SSL_get_options(con) & SSL_OP_NO_RENEGOTIATION))
2954 BIO_printf(bio_s_out, "Renegotiation is DISABLED\n");
2955
2956 if (keymatexportlabel != NULL) {
2957 BIO_printf(bio_s_out, "Keying material exporter:\n");
2958 BIO_printf(bio_s_out, " Label: '%s'\n", keymatexportlabel);
2959 BIO_printf(bio_s_out, " Length: %i bytes\n", keymatexportlen);
2960 exportedkeymat = app_malloc(keymatexportlen, "export key");
2961 if (SSL_export_keying_material(con, exportedkeymat,
2962 keymatexportlen,
2963 keymatexportlabel,
2964 strlen(keymatexportlabel),
2965 NULL, 0, 0) <= 0) {
2966 BIO_printf(bio_s_out, " Error\n");
2967 } else {
2968 BIO_printf(bio_s_out, " Keying material: ");
2969 for (i = 0; i < keymatexportlen; i++)
2970 BIO_printf(bio_s_out, "%02X", exportedkeymat[i]);
2971 BIO_printf(bio_s_out, "\n");
2972 }
2973 OPENSSL_free(exportedkeymat);
2974 }
2975 #ifndef OPENSSL_NO_KTLS
2976 if (BIO_get_ktls_send(SSL_get_wbio(con)))
2977 BIO_printf(bio_err, "Using Kernel TLS for sending\n");
2978 if (BIO_get_ktls_recv(SSL_get_rbio(con)))
2979 BIO_printf(bio_err, "Using Kernel TLS for receiving\n");
2980 #endif
2981
2982 (void)BIO_flush(bio_s_out);
2983 }
2984
2985 static int www_body(int s, int stype, int prot, unsigned char *context)
2986 {
2987 char *buf = NULL, *p;
2988 int ret = 1;
2989 int i, j, k, dot;
2990 SSL *con;
2991 const SSL_CIPHER *c;
2992 BIO *io, *ssl_bio, *sbio;
2993 #ifdef RENEG
2994 int total_bytes = 0;
2995 #endif
2996 int width;
2997 fd_set readfds;
2998 const char *opmode;
2999
3000 /* Set width for a select call if needed */
3001 width = s + 1;
3002
3003 p = buf = app_malloc(bufsize, "server www buffer");
3004 io = BIO_new(BIO_f_buffer());
3005 ssl_bio = BIO_new(BIO_f_ssl());
3006 if ((io == NULL) || (ssl_bio == NULL))
3007 goto err;
3008
3009 if (s_nbio) {
3010 if (!BIO_socket_nbio(s, 1))
3011 ERR_print_errors(bio_err);
3012 else if (!s_quiet)
3013 BIO_printf(bio_err, "Turned on non blocking io\n");
3014 }
3015
3016 /* lets make the output buffer a reasonable size */
3017 if (!BIO_set_write_buffer_size(io, bufsize))
3018 goto err;
3019
3020 if ((con = SSL_new(ctx)) == NULL)
3021 goto err;
3022
3023 if (s_tlsextdebug) {
3024 SSL_set_tlsext_debug_callback(con, tlsext_cb);
3025 SSL_set_tlsext_debug_arg(con, bio_s_out);
3026 }
3027
3028 if (context != NULL
3029 && !SSL_set_session_id_context(con, context,
3030 strlen((char *)context))) {
3031 SSL_free(con);
3032 goto err;
3033 }
3034
3035 sbio = BIO_new_socket(s, BIO_NOCLOSE);
3036 if (s_nbio_test) {
3037 BIO *test;
3038
3039 test = BIO_new(BIO_f_nbio_test());
3040 sbio = BIO_push(test, sbio);
3041 }
3042 SSL_set_bio(con, sbio, sbio);
3043 SSL_set_accept_state(con);
3044
3045 /* No need to free |con| after this. Done by BIO_free(ssl_bio) */
3046 BIO_set_ssl(ssl_bio, con, BIO_CLOSE);
3047 BIO_push(io, ssl_bio);
3048 ssl_bio = NULL;
3049 #ifdef CHARSET_EBCDIC
3050 io = BIO_push(BIO_new(BIO_f_ebcdic_filter()), io);
3051 #endif
3052
3053 if (s_debug) {
3054 BIO_set_callback_ex(SSL_get_rbio(con), bio_dump_callback);
3055 BIO_set_callback_arg(SSL_get_rbio(con), (char *)bio_s_out);
3056 }
3057 if (s_msg) {
3058 #ifndef OPENSSL_NO_SSL_TRACE
3059 if (s_msg == 2)
3060 SSL_set_msg_callback(con, SSL_trace);
3061 else
3062 #endif
3063 SSL_set_msg_callback(con, msg_cb);
3064 SSL_set_msg_callback_arg(con, bio_s_msg ? bio_s_msg : bio_s_out);
3065 }
3066
3067 for (;;) {
3068 i = BIO_gets(io, buf, bufsize - 1);
3069 if (i < 0) { /* error */
3070 if (!BIO_should_retry(io) && !SSL_waiting_for_async(con)) {
3071 if (!s_quiet)
3072 ERR_print_errors(bio_err);
3073 goto err;
3074 } else {
3075 BIO_printf(bio_s_out, "read R BLOCK\n");
3076 #ifndef OPENSSL_NO_SRP
3077 if (BIO_should_io_special(io)
3078 && BIO_get_retry_reason(io) == BIO_RR_SSL_X509_LOOKUP) {
3079 BIO_printf(bio_s_out, "LOOKUP renego during read\n");
3080
3081 lookup_srp_user(&srp_callback_parm, bio_s_out);
3082
3083 continue;
3084 }
3085 #endif
3086 ossl_sleep(1000);
3087 continue;
3088 }
3089 } else if (i == 0) { /* end of input */
3090 ret = 1;
3091 goto end;
3092 }
3093
3094 /* else we have data */
3095 if ((www == 1 && HAS_PREFIX(buf, "GET "))
3096 || (www == 2 && HAS_PREFIX(buf, "GET /stats "))) {
3097 X509 *peer = NULL;
3098 STACK_OF(SSL_CIPHER) *sk;
3099 static const char *space = " ";
3100
3101 if (www == 1 && HAS_PREFIX(buf, "GET /reneg")) {
3102 if (HAS_PREFIX(buf, "GET /renegcert"))
3103 SSL_set_verify(con,
3104 SSL_VERIFY_PEER | SSL_VERIFY_CLIENT_ONCE,
3105 NULL);
3106 i = SSL_renegotiate(con);
3107 BIO_printf(bio_s_out, "SSL_renegotiate -> %d\n", i);
3108 /* Send the HelloRequest */
3109 i = SSL_do_handshake(con);
3110 if (i <= 0) {
3111 BIO_printf(bio_s_out, "SSL_do_handshake() Retval %d\n",
3112 SSL_get_error(con, i));
3113 ERR_print_errors(bio_err);
3114 goto err;
3115 }
3116 /* Wait for a ClientHello to come back */
3117 FD_ZERO(&readfds);
3118 openssl_fdset(s, &readfds);
3119 i = select(width, (void *)&readfds, NULL, NULL, NULL);
3120 if (i <= 0 || !FD_ISSET(s, &readfds)) {
3121 BIO_printf(bio_s_out,
3122 "Error waiting for client response\n");
3123 ERR_print_errors(bio_err);
3124 goto err;
3125 }
3126 /*
3127 * We're not actually expecting any data here and we ignore
3128 * any that is sent. This is just to force the handshake that
3129 * we're expecting to come from the client. If they haven't
3130 * sent one there's not much we can do.
3131 */
3132 BIO_gets(io, buf, bufsize - 1);
3133 }
3134
3135 BIO_puts(io,
3136 "HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n");
3137 BIO_puts(io, "<HTML><BODY BGCOLOR=\"#ffffff\">\n");
3138 BIO_puts(io, "<pre>\n");
3139 /* BIO_puts(io, OpenSSL_version(OPENSSL_VERSION)); */
3140 BIO_puts(io, "\n");
3141 for (i = 0; i < local_argc; i++) {
3142 const char *myp;
3143
3144 for (myp = local_argv[i]; *myp; myp++)
3145 switch (*myp) {
3146 case '<':
3147 BIO_puts(io, "&lt;");
3148 break;
3149 case '>':
3150 BIO_puts(io, "&gt;");
3151 break;
3152 case '&':
3153 BIO_puts(io, "&amp;");
3154 break;
3155 default:
3156 BIO_write(io, myp, 1);
3157 break;
3158 }
3159 BIO_write(io, " ", 1);
3160 }
3161 BIO_puts(io, "\n");
3162
3163 ssl_print_secure_renegotiation_notes(io, con);
3164
3165 /*
3166 * The following is evil and should not really be done
3167 */
3168 BIO_printf(io, "Ciphers supported in s_server binary\n");
3169 sk = SSL_get_ciphers(con);
3170 j = sk_SSL_CIPHER_num(sk);
3171 for (i = 0; i < j; i++) {
3172 c = sk_SSL_CIPHER_value(sk, i);
3173 BIO_printf(io, "%-11s:%-25s ",
3174 SSL_CIPHER_get_version(c), SSL_CIPHER_get_name(c));
3175 if ((((i + 1) % 2) == 0) && (i + 1 != j))
3176 BIO_puts(io, "\n");
3177 }
3178 BIO_puts(io, "\n");
3179 p = SSL_get_shared_ciphers(con, buf, bufsize);
3180 if (p != NULL) {
3181 BIO_printf(io,
3182 "---\nCiphers common between both SSL end points:\n");
3183 j = i = 0;
3184 while (*p) {
3185 if (*p == ':') {
3186 BIO_write(io, space, 26 - j);
3187 i++;
3188 j = 0;
3189 BIO_write(io, ((i % 3) ? " " : "\n"), 1);
3190 } else {
3191 BIO_write(io, p, 1);
3192 j++;
3193 }
3194 p++;
3195 }
3196 BIO_puts(io, "\n");
3197 }
3198 ssl_print_sigalgs(io, con);
3199 #ifndef OPENSSL_NO_EC
3200 ssl_print_groups(io, con, 0);
3201 #endif
3202 print_ca_names(io, con);
3203 BIO_printf(io, (SSL_session_reused(con)
3204 ? "---\nReused, " : "---\nNew, "));
3205 c = SSL_get_current_cipher(con);
3206 BIO_printf(io, "%s, Cipher is %s\n",
3207 SSL_CIPHER_get_version(c), SSL_CIPHER_get_name(c));
3208 SSL_SESSION_print(io, SSL_get_session(con));
3209 BIO_printf(io, "---\n");
3210 print_stats(io, SSL_get_SSL_CTX(con));
3211 BIO_printf(io, "---\n");
3212 peer = SSL_get0_peer_certificate(con);
3213 if (peer != NULL) {
3214 BIO_printf(io, "Client certificate\n");
3215 X509_print(io, peer);
3216 PEM_write_bio_X509(io, peer);
3217 peer = NULL;
3218 } else {
3219 BIO_puts(io, "no client certificate available\n");
3220 }
3221 BIO_puts(io, "</pre></BODY></HTML>\r\n\r\n");
3222 break;
3223 } else if ((www == 2 || www == 3) && CHECK_AND_SKIP_PREFIX(p, "GET /")) {
3224 BIO *file;
3225 char *e;
3226 static const char *text =
3227 "HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n";
3228
3229 dot = 1;
3230 for (e = p; *e != '\0'; e++) {
3231 if (e[0] == ' ')
3232 break;
3233
3234 if (e[0] == ':') {
3235 /* Windows drive. We treat this the same way as ".." */
3236 dot = -1;
3237 break;
3238 }
3239
3240 switch (dot) {
3241 case 1:
3242 dot = (e[0] == '.') ? 2 : 0;
3243 break;
3244 case 2:
3245 dot = (e[0] == '.') ? 3 : 0;
3246 break;
3247 case 3:
3248 dot = (e[0] == '/' || e[0] == '\\') ? -1 : 0;
3249 break;
3250 }
3251 if (dot == 0)
3252 dot = (e[0] == '/' || e[0] == '\\') ? 1 : 0;
3253 }
3254 dot = (dot == 3) || (dot == -1); /* filename contains ".."
3255 * component */
3256
3257 if (*e == '\0') {
3258 BIO_puts(io, text);
3259 BIO_printf(io, "'%s' is an invalid file name\r\n", p);
3260 break;
3261 }
3262 *e = '\0';
3263
3264 if (dot) {
3265 BIO_puts(io, text);
3266 BIO_printf(io, "'%s' contains '..' or ':'\r\n", p);
3267 break;
3268 }
3269
3270 if (*p == '/' || *p == '\\') {
3271 BIO_puts(io, text);
3272 BIO_printf(io, "'%s' is an invalid path\r\n", p);
3273 break;
3274 }
3275
3276 /* if a directory, do the index thang */
3277 if (app_isdir(p) > 0) {
3278 BIO_puts(io, text);
3279 BIO_printf(io, "'%s' is a directory\r\n", p);
3280 break;
3281 }
3282
3283 opmode = (http_server_binmode == 1) ? "rb" : "r";
3284 if ((file = BIO_new_file(p, opmode)) == NULL) {
3285 BIO_puts(io, text);
3286 BIO_printf(io, "Error opening '%s' mode='%s'\r\n", p, opmode);
3287 ERR_print_errors(io);
3288 break;
3289 }
3290
3291 if (!s_quiet)
3292 BIO_printf(bio_err, "FILE:%s\n", p);
3293
3294 if (www == 2) {
3295 i = strlen(p);
3296 if (((i > 5) && (strcmp(&(p[i - 5]), ".html") == 0)) ||
3297 ((i > 4) && (strcmp(&(p[i - 4]), ".php") == 0)) ||
3298 ((i > 4) && (strcmp(&(p[i - 4]), ".htm") == 0)))
3299 BIO_puts(io,
3300 "HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n");
3301 else
3302 BIO_puts(io,
3303 "HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n");
3304 }
3305 /* send the file */
3306 #ifndef OPENSSL_NO_KTLS
3307 if (use_sendfile) {
3308 FILE *fp = NULL;
3309 int fd;
3310 struct stat st;
3311 off_t offset = 0;
3312 size_t filesize;
3313
3314 BIO_get_fp(file, &fp);
3315 fd = fileno(fp);
3316 if (fstat(fd, &st) < 0) {
3317 BIO_printf(io, "Error fstat '%s'\r\n", p);
3318 ERR_print_errors(io);
3319 goto write_error;
3320 }
3321
3322 filesize = st.st_size;
3323 if (((int)BIO_flush(io)) < 0)
3324 goto write_error;
3325
3326 for (;;) {
3327 i = SSL_sendfile(con, fd, offset, filesize, 0);
3328 if (i < 0) {
3329 BIO_printf(io, "Error SSL_sendfile '%s'\r\n", p);
3330 ERR_print_errors(io);
3331 break;
3332 } else {
3333 offset += i;
3334 filesize -= i;
3335 }
3336
3337 if (filesize <= 0) {
3338 if (!s_quiet)
3339 BIO_printf(bio_err, "KTLS SENDFILE '%s' OK\n", p);
3340
3341 break;
3342 }
3343 }
3344 } else
3345 #endif
3346 {
3347 for (;;) {
3348 i = BIO_read(file, buf, bufsize);
3349 if (i <= 0)
3350 break;
3351
3352 #ifdef RENEG
3353 total_bytes += i;
3354 BIO_printf(bio_err, "%d\n", i);
3355 if (total_bytes > 3 * 1024) {
3356 total_bytes = 0;
3357 BIO_printf(bio_err, "RENEGOTIATE\n");
3358 SSL_renegotiate(con);
3359 }
3360 #endif
3361
3362 for (j = 0; j < i;) {
3363 #ifdef RENEG
3364 static count = 0;
3365 if (++count == 13)
3366 SSL_renegotiate(con);
3367 #endif
3368 k = BIO_write(io, &(buf[j]), i - j);
3369 if (k <= 0) {
3370 if (!BIO_should_retry(io)
3371 && !SSL_waiting_for_async(con)) {
3372 goto write_error;
3373 } else {
3374 BIO_printf(bio_s_out, "rwrite W BLOCK\n");
3375 }
3376 } else {
3377 j += k;
3378 }
3379 }
3380 }
3381 }
3382 write_error:
3383 BIO_free(file);
3384 break;
3385 }
3386 }
3387
3388 for (;;) {
3389 i = (int)BIO_flush(io);
3390 if (i <= 0) {
3391 if (!BIO_should_retry(io))
3392 break;
3393 } else
3394 break;
3395 }
3396 end:
3397 /* make sure we re-use sessions */
3398 do_ssl_shutdown(con);
3399
3400 err:
3401 OPENSSL_free(buf);
3402 BIO_free(ssl_bio);
3403 BIO_free_all(io);
3404 return ret;
3405 }
3406
3407 static int rev_body(int s, int stype, int prot, unsigned char *context)
3408 {
3409 char *buf = NULL;
3410 int i;
3411 int ret = 1;
3412 SSL *con;
3413 BIO *io, *ssl_bio, *sbio;
3414
3415 buf = app_malloc(bufsize, "server rev buffer");
3416 io = BIO_new(BIO_f_buffer());
3417 ssl_bio = BIO_new(BIO_f_ssl());
3418 if ((io == NULL) || (ssl_bio == NULL))
3419 goto err;
3420
3421 /* lets make the output buffer a reasonable size */
3422 if (!BIO_set_write_buffer_size(io, bufsize))
3423 goto err;
3424
3425 if ((con = SSL_new(ctx)) == NULL)
3426 goto err;
3427
3428 if (s_tlsextdebug) {
3429 SSL_set_tlsext_debug_callback(con, tlsext_cb);
3430 SSL_set_tlsext_debug_arg(con, bio_s_out);
3431 }
3432 if (context != NULL
3433 && !SSL_set_session_id_context(con, context,
3434 strlen((char *)context))) {
3435 SSL_free(con);
3436 ERR_print_errors(bio_err);
3437 goto err;
3438 }
3439
3440 sbio = BIO_new_socket(s, BIO_NOCLOSE);
3441 SSL_set_bio(con, sbio, sbio);
3442 SSL_set_accept_state(con);
3443
3444 /* No need to free |con| after this. Done by BIO_free(ssl_bio) */
3445 BIO_set_ssl(ssl_bio, con, BIO_CLOSE);
3446 BIO_push(io, ssl_bio);
3447 ssl_bio = NULL;
3448 #ifdef CHARSET_EBCDIC
3449 io = BIO_push(BIO_new(BIO_f_ebcdic_filter()), io);
3450 #endif
3451
3452 if (s_debug) {
3453 BIO_set_callback_ex(SSL_get_rbio(con), bio_dump_callback);
3454 BIO_set_callback_arg(SSL_get_rbio(con), (char *)bio_s_out);
3455 }
3456 if (s_msg) {
3457 #ifndef OPENSSL_NO_SSL_TRACE
3458 if (s_msg == 2)
3459 SSL_set_msg_callback(con, SSL_trace);
3460 else
3461 #endif
3462 SSL_set_msg_callback(con, msg_cb);
3463 SSL_set_msg_callback_arg(con, bio_s_msg ? bio_s_msg : bio_s_out);
3464 }
3465
3466 for (;;) {
3467 i = BIO_do_handshake(io);
3468 if (i > 0)
3469 break;
3470 if (!BIO_should_retry(io)) {
3471 BIO_puts(bio_err, "CONNECTION FAILURE\n");
3472 ERR_print_errors(bio_err);
3473 goto end;
3474 }
3475 #ifndef OPENSSL_NO_SRP
3476 if (BIO_should_io_special(io)
3477 && BIO_get_retry_reason(io) == BIO_RR_SSL_X509_LOOKUP) {
3478 BIO_printf(bio_s_out, "LOOKUP renego during accept\n");
3479
3480 lookup_srp_user(&srp_callback_parm, bio_s_out);
3481
3482 continue;
3483 }
3484 #endif
3485 }
3486 BIO_printf(bio_err, "CONNECTION ESTABLISHED\n");
3487 print_ssl_summary(con);
3488
3489 for (;;) {
3490 i = BIO_gets(io, buf, bufsize - 1);
3491 if (i < 0) { /* error */
3492 if (!BIO_should_retry(io)) {
3493 if (!s_quiet)
3494 ERR_print_errors(bio_err);
3495 goto err;
3496 } else {
3497 BIO_printf(bio_s_out, "read R BLOCK\n");
3498 #ifndef OPENSSL_NO_SRP
3499 if (BIO_should_io_special(io)
3500 && BIO_get_retry_reason(io) == BIO_RR_SSL_X509_LOOKUP) {
3501 BIO_printf(bio_s_out, "LOOKUP renego during read\n");
3502
3503 lookup_srp_user(&srp_callback_parm, bio_s_out);
3504
3505 continue;
3506 }
3507 #endif
3508 ossl_sleep(1000);
3509 continue;
3510 }
3511 } else if (i == 0) { /* end of input */
3512 ret = 1;
3513 BIO_printf(bio_err, "CONNECTION CLOSED\n");
3514 goto end;
3515 } else {
3516 char *p = buf + i - 1;
3517 while (i && (*p == '\n' || *p == '\r')) {
3518 p--;
3519 i--;
3520 }
3521 if (!s_ign_eof && i == 5 && HAS_PREFIX(buf, "CLOSE")) {
3522 ret = 1;
3523 BIO_printf(bio_err, "CONNECTION CLOSED\n");
3524 goto end;
3525 }
3526 BUF_reverse((unsigned char *)buf, NULL, i);
3527 buf[i] = '\n';
3528 BIO_write(io, buf, i + 1);
3529 for (;;) {
3530 i = BIO_flush(io);
3531 if (i > 0)
3532 break;
3533 if (!BIO_should_retry(io))
3534 goto end;
3535 }
3536 }
3537 }
3538 end:
3539 /* make sure we re-use sessions */
3540 do_ssl_shutdown(con);
3541
3542 err:
3543
3544 OPENSSL_free(buf);
3545 BIO_free(ssl_bio);
3546 BIO_free_all(io);
3547 return ret;
3548 }
3549
3550 #define MAX_SESSION_ID_ATTEMPTS 10
3551 static int generate_session_id(SSL *ssl, unsigned char *id,
3552 unsigned int *id_len)
3553 {
3554 unsigned int count = 0;
3555 unsigned int session_id_prefix_len = strlen(session_id_prefix);
3556
3557 do {
3558 if (RAND_bytes(id, *id_len) <= 0)
3559 return 0;
3560 /*
3561 * Prefix the session_id with the required prefix. NB: If our prefix
3562 * is too long, clip it - but there will be worse effects anyway, eg.
3563 * the server could only possibly create 1 session ID (ie. the
3564 * prefix!) so all future session negotiations will fail due to
3565 * conflicts.
3566 */
3567 memcpy(id, session_id_prefix,
3568 (session_id_prefix_len < *id_len) ?
3569 session_id_prefix_len : *id_len);
3570 }
3571 while (SSL_has_matching_session_id(ssl, id, *id_len) &&
3572 (++count < MAX_SESSION_ID_ATTEMPTS));
3573 if (count >= MAX_SESSION_ID_ATTEMPTS)
3574 return 0;
3575 return 1;
3576 }
3577
3578 /*
3579 * By default s_server uses an in-memory cache which caches SSL_SESSION
3580 * structures without any serialization. This hides some bugs which only
3581 * become apparent in deployed servers. By implementing a basic external
3582 * session cache some issues can be debugged using s_server.
3583 */
3584
3585 typedef struct simple_ssl_session_st {
3586 unsigned char *id;
3587 unsigned int idlen;
3588 unsigned char *der;
3589 int derlen;
3590 struct simple_ssl_session_st *next;
3591 } simple_ssl_session;
3592
3593 static simple_ssl_session *first = NULL;
3594
3595 static int add_session(SSL *ssl, SSL_SESSION *session)
3596 {
3597 simple_ssl_session *sess = app_malloc(sizeof(*sess), "get session");
3598 unsigned char *p;
3599
3600 SSL_SESSION_get_id(session, &sess->idlen);
3601 sess->derlen = i2d_SSL_SESSION(session, NULL);
3602 if (sess->derlen < 0) {
3603 BIO_printf(bio_err, "Error encoding session\n");
3604 OPENSSL_free(sess);
3605 return 0;
3606 }
3607
3608 sess->id = OPENSSL_memdup(SSL_SESSION_get_id(session, NULL), sess->idlen);
3609 sess->der = app_malloc(sess->derlen, "get session buffer");
3610 if (!sess->id) {
3611 BIO_printf(bio_err, "Out of memory adding to external cache\n");
3612 OPENSSL_free(sess->id);
3613 OPENSSL_free(sess->der);
3614 OPENSSL_free(sess);
3615 return 0;
3616 }
3617 p = sess->der;
3618
3619 /* Assume it still works. */
3620 if (i2d_SSL_SESSION(session, &p) != sess->derlen) {
3621 BIO_printf(bio_err, "Unexpected session encoding length\n");
3622 OPENSSL_free(sess->id);
3623 OPENSSL_free(sess->der);
3624 OPENSSL_free(sess);
3625 return 0;
3626 }
3627
3628 sess->next = first;
3629 first = sess;
3630 BIO_printf(bio_err, "New session added to external cache\n");
3631 return 0;
3632 }
3633
3634 static SSL_SESSION *get_session(SSL *ssl, const unsigned char *id, int idlen,
3635 int *do_copy)
3636 {
3637 simple_ssl_session *sess;
3638 *do_copy = 0;
3639 for (sess = first; sess; sess = sess->next) {
3640 if (idlen == (int)sess->idlen && !memcmp(sess->id, id, idlen)) {
3641 const unsigned char *p = sess->der;
3642 BIO_printf(bio_err, "Lookup session: cache hit\n");
3643 return d2i_SSL_SESSION(NULL, &p, sess->derlen);
3644 }
3645 }
3646 BIO_printf(bio_err, "Lookup session: cache miss\n");
3647 return NULL;
3648 }
3649
3650 static void del_session(SSL_CTX *sctx, SSL_SESSION *session)
3651 {
3652 simple_ssl_session *sess, *prev = NULL;
3653 const unsigned char *id;
3654 unsigned int idlen;
3655 id = SSL_SESSION_get_id(session, &idlen);
3656 for (sess = first; sess; sess = sess->next) {
3657 if (idlen == sess->idlen && !memcmp(sess->id, id, idlen)) {
3658 if (prev)
3659 prev->next = sess->next;
3660 else
3661 first = sess->next;
3662 OPENSSL_free(sess->id);
3663 OPENSSL_free(sess->der);
3664 OPENSSL_free(sess);
3665 return;
3666 }
3667 prev = sess;
3668 }
3669 }
3670
3671 static void init_session_cache_ctx(SSL_CTX *sctx)
3672 {
3673 SSL_CTX_set_session_cache_mode(sctx,
3674 SSL_SESS_CACHE_NO_INTERNAL |
3675 SSL_SESS_CACHE_SERVER);
3676 SSL_CTX_sess_set_new_cb(sctx, add_session);
3677 SSL_CTX_sess_set_get_cb(sctx, get_session);
3678 SSL_CTX_sess_set_remove_cb(sctx, del_session);
3679 }
3680
3681 static void free_sessions(void)
3682 {
3683 simple_ssl_session *sess, *tsess;
3684 for (sess = first; sess;) {
3685 OPENSSL_free(sess->id);
3686 OPENSSL_free(sess->der);
3687 tsess = sess;
3688 sess = sess->next;
3689 OPENSSL_free(tsess);
3690 }
3691 first = NULL;
3692 }
3693
3694 #endif /* OPENSSL_NO_SOCK */
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