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1 /*
2 * Copyright 1995-2022 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 (OPENSSL_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_TFO,
721 OPT_R_ENUM,
722 OPT_S_ENUM,
723 OPT_V_ENUM,
724 OPT_X_ENUM,
725 OPT_PROV_ENUM
726 } OPTION_CHOICE;
727
728 const OPTIONS s_server_options[] = {
729 OPT_SECTION("General"),
730 {"help", OPT_HELP, '-', "Display this summary"},
731 {"ssl_config", OPT_SSL_CONFIG, 's',
732 "Configure SSL_CTX using the given configuration value"},
733 #ifndef OPENSSL_NO_SSL_TRACE
734 {"trace", OPT_TRACE, '-', "trace protocol messages"},
735 #endif
736 #ifndef OPENSSL_NO_ENGINE
737 {"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"},
738 #endif
739
740 OPT_SECTION("Network"),
741 {"port", OPT_PORT, 'p',
742 "TCP/IP port to listen on for connections (default is " PORT ")"},
743 {"accept", OPT_ACCEPT, 's',
744 "TCP/IP optional host and port to listen on for connections (default is *:" PORT ")"},
745 #ifdef AF_UNIX
746 {"unix", OPT_UNIX, 's', "Unix domain socket to accept on"},
747 {"unlink", OPT_UNLINK, '-', "For -unix, unlink existing socket first"},
748 #endif
749 {"4", OPT_4, '-', "Use IPv4 only"},
750 {"6", OPT_6, '-', "Use IPv6 only"},
751 #if defined(TCP_FASTOPEN) && !defined(OPENSSL_NO_TFO)
752 {"tfo", OPT_TFO, '-', "Listen for TCP Fast Open connections"},
753 #endif
754
755 OPT_SECTION("Identity"),
756 {"context", OPT_CONTEXT, 's', "Set session ID context"},
757 {"CAfile", OPT_CAFILE, '<', "PEM format file of CA's"},
758 {"CApath", OPT_CAPATH, '/', "PEM format directory of CA's"},
759 {"CAstore", OPT_CASTORE, ':', "URI to store of CA's"},
760 {"no-CAfile", OPT_NOCAFILE, '-',
761 "Do not load the default certificates file"},
762 {"no-CApath", OPT_NOCAPATH, '-',
763 "Do not load certificates from the default certificates directory"},
764 {"no-CAstore", OPT_NOCASTORE, '-',
765 "Do not load certificates from the default certificates store URI"},
766 {"nocert", OPT_NOCERT, '-', "Don't use any certificates (Anon-DH)"},
767 {"verify", OPT_VERIFY, 'n', "Turn on peer certificate verification"},
768 {"Verify", OPT_UPPER_V_VERIFY, 'n',
769 "Turn on peer certificate verification, must have a cert"},
770 {"nameopt", OPT_NAMEOPT, 's', "Certificate subject/issuer name printing options"},
771 {"cert", OPT_CERT, '<', "Server certificate file to use; default " TEST_CERT},
772 {"cert2", OPT_CERT2, '<',
773 "Certificate file to use for servername; default " TEST_CERT2},
774 {"certform", OPT_CERTFORM, 'F',
775 "Server certificate file format (PEM/DER/P12); has no effect"},
776 {"cert_chain", OPT_CERT_CHAIN, '<',
777 "Server certificate chain file in PEM format"},
778 {"build_chain", OPT_BUILD_CHAIN, '-', "Build server certificate chain"},
779 {"serverinfo", OPT_SERVERINFO, 's',
780 "PEM serverinfo file for certificate"},
781 {"key", OPT_KEY, 's',
782 "Private key file to use; default is -cert file or else" TEST_CERT},
783 {"key2", OPT_KEY2, '<',
784 "-Private Key file to use for servername if not in -cert2"},
785 {"keyform", OPT_KEYFORM, 'f', "Key format (ENGINE, other values ignored)"},
786 {"pass", OPT_PASS, 's', "Private key and cert file pass phrase source"},
787 {"dcert", OPT_DCERT, '<',
788 "Second server certificate file to use (usually for DSA)"},
789 {"dcertform", OPT_DCERTFORM, 'F',
790 "Second server certificate file format (PEM/DER/P12); has no effect"},
791 {"dcert_chain", OPT_DCERT_CHAIN, '<',
792 "second server certificate chain file in PEM format"},
793 {"dkey", OPT_DKEY, '<',
794 "Second private key file to use (usually for DSA)"},
795 {"dkeyform", OPT_DKEYFORM, 'F',
796 "Second key file format (ENGINE, other values ignored)"},
797 {"dpass", OPT_DPASS, 's',
798 "Second private key and cert file pass phrase source"},
799 {"dhparam", OPT_DHPARAM, '<', "DH parameters file to use"},
800 {"servername", OPT_SERVERNAME, 's',
801 "Servername for HostName TLS extension"},
802 {"servername_fatal", OPT_SERVERNAME_FATAL, '-',
803 "On servername mismatch send fatal alert (default warning alert)"},
804 {"nbio_test", OPT_NBIO_TEST, '-', "Test with the non-blocking test bio"},
805 {"crlf", OPT_CRLF, '-', "Convert LF from terminal into CRLF"},
806 {"quiet", OPT_QUIET, '-', "No server output"},
807 {"no_resume_ephemeral", OPT_NO_RESUME_EPHEMERAL, '-',
808 "Disable caching and tickets if ephemeral (EC)DH is used"},
809 {"www", OPT_WWW, '-', "Respond to a 'GET /' with a status page"},
810 {"WWW", OPT_UPPER_WWW, '-', "Respond to a 'GET with the file ./path"},
811 {"ignore_unexpected_eof", OPT_IGNORE_UNEXPECTED_EOF, '-',
812 "Do not treat lack of close_notify from a peer as an error"},
813 {"tlsextdebug", OPT_TLSEXTDEBUG, '-',
814 "Hex dump of all TLS extensions received"},
815 {"HTTP", OPT_HTTP, '-', "Like -WWW but ./path includes HTTP headers"},
816 {"id_prefix", OPT_ID_PREFIX, 's',
817 "Generate SSL/TLS session IDs prefixed by arg"},
818 {"keymatexport", OPT_KEYMATEXPORT, 's',
819 "Export keying material using label"},
820 {"keymatexportlen", OPT_KEYMATEXPORTLEN, 'p',
821 "Export len bytes of keying material; default 20"},
822 {"CRL", OPT_CRL, '<', "CRL file to use"},
823 {"CRLform", OPT_CRLFORM, 'F', "CRL file format (PEM or DER); default PEM"},
824 {"crl_download", OPT_CRL_DOWNLOAD, '-',
825 "Download CRLs from distribution points in certificate CDP entries"},
826 {"chainCAfile", OPT_CHAINCAFILE, '<',
827 "CA file for certificate chain (PEM format)"},
828 {"chainCApath", OPT_CHAINCAPATH, '/',
829 "use dir as certificate store path to build CA certificate chain"},
830 {"chainCAstore", OPT_CHAINCASTORE, ':',
831 "use URI as certificate store to build CA certificate chain"},
832 {"verifyCAfile", OPT_VERIFYCAFILE, '<',
833 "CA file for certificate verification (PEM format)"},
834 {"verifyCApath", OPT_VERIFYCAPATH, '/',
835 "use dir as certificate store path to verify CA certificate"},
836 {"verifyCAstore", OPT_VERIFYCASTORE, ':',
837 "use URI as certificate store to verify CA certificate"},
838 {"no_cache", OPT_NO_CACHE, '-', "Disable session cache"},
839 {"ext_cache", OPT_EXT_CACHE, '-',
840 "Disable internal cache, set up and use external cache"},
841 {"verify_return_error", OPT_VERIFY_RET_ERROR, '-',
842 "Close connection on verification error"},
843 {"verify_quiet", OPT_VERIFY_QUIET, '-',
844 "No verify output except verify errors"},
845 {"ign_eof", OPT_IGN_EOF, '-', "Ignore input EOF (default when -quiet)"},
846 {"no_ign_eof", OPT_NO_IGN_EOF, '-', "Do not ignore input EOF"},
847
848 #ifndef OPENSSL_NO_OCSP
849 OPT_SECTION("OCSP"),
850 {"status", OPT_STATUS, '-', "Request certificate status from server"},
851 {"status_verbose", OPT_STATUS_VERBOSE, '-',
852 "Print more output in certificate status callback"},
853 {"status_timeout", OPT_STATUS_TIMEOUT, 'n',
854 "Status request responder timeout"},
855 {"status_url", OPT_STATUS_URL, 's', "Status request fallback URL"},
856 {"proxy", OPT_PROXY, 's',
857 "[http[s]://]host[:port][/path] of HTTP(S) proxy to use; path is ignored"},
858 {"no_proxy", OPT_NO_PROXY, 's',
859 "List of addresses of servers not to use HTTP(S) proxy for"},
860 {OPT_MORE_STR, 0, 0,
861 "Default from environment variable 'no_proxy', else 'NO_PROXY', else none"},
862 {"status_file", OPT_STATUS_FILE, '<',
863 "File containing DER encoded OCSP Response"},
864 #endif
865
866 OPT_SECTION("Debug"),
867 {"security_debug", OPT_SECURITY_DEBUG, '-',
868 "Print output from SSL/TLS security framework"},
869 {"security_debug_verbose", OPT_SECURITY_DEBUG_VERBOSE, '-',
870 "Print more output from SSL/TLS security framework"},
871 {"brief", OPT_BRIEF, '-',
872 "Restrict output to brief summary of connection parameters"},
873 {"rev", OPT_REV, '-',
874 "act as an echo server that sends back received text reversed"},
875 {"debug", OPT_DEBUG, '-', "Print more output"},
876 {"msg", OPT_MSG, '-', "Show protocol messages"},
877 {"msgfile", OPT_MSGFILE, '>',
878 "File to send output of -msg or -trace, instead of stdout"},
879 {"state", OPT_STATE, '-', "Print the SSL states"},
880 {"async", OPT_ASYNC, '-', "Operate in asynchronous mode"},
881 {"max_pipelines", OPT_MAX_PIPELINES, 'p',
882 "Maximum number of encrypt/decrypt pipelines to be used"},
883 {"naccept", OPT_NACCEPT, 'p', "Terminate after #num connections"},
884 {"keylogfile", OPT_KEYLOG_FILE, '>', "Write TLS secrets to file"},
885
886 OPT_SECTION("Network"),
887 {"nbio", OPT_NBIO, '-', "Use non-blocking IO"},
888 {"timeout", OPT_TIMEOUT, '-', "Enable timeouts"},
889 {"mtu", OPT_MTU, 'p', "Set link-layer MTU"},
890 {"read_buf", OPT_READ_BUF, 'p',
891 "Default read buffer size to be used for connections"},
892 {"split_send_frag", OPT_SPLIT_SEND_FRAG, 'p',
893 "Size used to split data for encrypt pipelines"},
894 {"max_send_frag", OPT_MAX_SEND_FRAG, 'p', "Maximum Size of send frames "},
895
896 OPT_SECTION("Server identity"),
897 {"psk_identity", OPT_PSK_IDENTITY, 's', "PSK identity to expect"},
898 #ifndef OPENSSL_NO_PSK
899 {"psk_hint", OPT_PSK_HINT, 's', "PSK identity hint to use"},
900 #endif
901 {"psk", OPT_PSK, 's', "PSK in hex (without 0x)"},
902 {"psk_session", OPT_PSK_SESS, '<', "File to read PSK SSL session from"},
903 #ifndef OPENSSL_NO_SRP
904 {"srpvfile", OPT_SRPVFILE, '<', "(deprecated) The verifier file for SRP"},
905 {"srpuserseed", OPT_SRPUSERSEED, 's',
906 "(deprecated) A seed string for a default user salt"},
907 #endif
908
909 OPT_SECTION("Protocol and version"),
910 {"max_early_data", OPT_MAX_EARLY, 'n',
911 "The maximum number of bytes of early data as advertised in tickets"},
912 {"recv_max_early_data", OPT_RECV_MAX_EARLY, 'n',
913 "The maximum number of bytes of early data (hard limit)"},
914 {"early_data", OPT_EARLY_DATA, '-', "Attempt to read early data"},
915 {"num_tickets", OPT_S_NUM_TICKETS, 'n',
916 "The number of TLSv1.3 session tickets that a server will automatically issue" },
917 {"anti_replay", OPT_ANTI_REPLAY, '-', "Switch on anti-replay protection (default)"},
918 {"no_anti_replay", OPT_NO_ANTI_REPLAY, '-', "Switch off anti-replay protection"},
919 {"http_server_binmode", OPT_HTTP_SERVER_BINMODE, '-', "opening files in binary mode when acting as http server (-WWW and -HTTP)"},
920 {"no_ca_names", OPT_NOCANAMES, '-',
921 "Disable TLS Extension CA Names"},
922 {"stateless", OPT_STATELESS, '-', "Require TLSv1.3 cookies"},
923 #ifndef OPENSSL_NO_SSL3
924 {"ssl3", OPT_SSL3, '-', "Just talk SSLv3"},
925 #endif
926 #ifndef OPENSSL_NO_TLS1
927 {"tls1", OPT_TLS1, '-', "Just talk TLSv1"},
928 #endif
929 #ifndef OPENSSL_NO_TLS1_1
930 {"tls1_1", OPT_TLS1_1, '-', "Just talk TLSv1.1"},
931 #endif
932 #ifndef OPENSSL_NO_TLS1_2
933 {"tls1_2", OPT_TLS1_2, '-', "just talk TLSv1.2"},
934 #endif
935 #ifndef OPENSSL_NO_TLS1_3
936 {"tls1_3", OPT_TLS1_3, '-', "just talk TLSv1.3"},
937 #endif
938 #ifndef OPENSSL_NO_DTLS
939 {"dtls", OPT_DTLS, '-', "Use any DTLS version"},
940 {"listen", OPT_LISTEN, '-',
941 "Listen for a DTLS ClientHello with a cookie and then connect"},
942 #endif
943 #ifndef OPENSSL_NO_DTLS1
944 {"dtls1", OPT_DTLS1, '-', "Just talk DTLSv1"},
945 #endif
946 #ifndef OPENSSL_NO_DTLS1_2
947 {"dtls1_2", OPT_DTLS1_2, '-', "Just talk DTLSv1.2"},
948 #endif
949 #ifndef OPENSSL_NO_SCTP
950 {"sctp", OPT_SCTP, '-', "Use SCTP"},
951 {"sctp_label_bug", OPT_SCTP_LABEL_BUG, '-', "Enable SCTP label length bug"},
952 #endif
953 #ifndef OPENSSL_NO_SRTP
954 {"use_srtp", OPT_SRTP_PROFILES, 's',
955 "Offer SRTP key management with a colon-separated profile list"},
956 #endif
957 {"no_dhe", OPT_NO_DHE, '-', "Disable ephemeral DH"},
958 #ifndef OPENSSL_NO_NEXTPROTONEG
959 {"nextprotoneg", OPT_NEXTPROTONEG, 's',
960 "Set the advertised protocols for the NPN extension (comma-separated list)"},
961 #endif
962 {"alpn", OPT_ALPN, 's',
963 "Set the advertised protocols for the ALPN extension (comma-separated list)"},
964 #ifndef OPENSSL_NO_KTLS
965 {"ktls", OPT_KTLS, '-', "Enable Kernel TLS for sending and receiving"},
966 {"sendfile", OPT_SENDFILE, '-', "Use sendfile to response file with -WWW"},
967 #endif
968
969 OPT_R_OPTIONS,
970 OPT_S_OPTIONS,
971 OPT_V_OPTIONS,
972 OPT_X_OPTIONS,
973 OPT_PROV_OPTIONS,
974 {NULL}
975 };
976
977 #define IS_PROT_FLAG(o) \
978 (o == OPT_SSL3 || o == OPT_TLS1 || o == OPT_TLS1_1 || o == OPT_TLS1_2 \
979 || o == OPT_TLS1_3 || o == OPT_DTLS || o == OPT_DTLS1 || o == OPT_DTLS1_2)
980
981 int s_server_main(int argc, char *argv[])
982 {
983 ENGINE *engine = NULL;
984 EVP_PKEY *s_key = NULL, *s_dkey = NULL;
985 SSL_CONF_CTX *cctx = NULL;
986 const SSL_METHOD *meth = TLS_server_method();
987 SSL_EXCERT *exc = NULL;
988 STACK_OF(OPENSSL_STRING) *ssl_args = NULL;
989 STACK_OF(X509) *s_chain = NULL, *s_dchain = NULL;
990 STACK_OF(X509_CRL) *crls = NULL;
991 X509 *s_cert = NULL, *s_dcert = NULL;
992 X509_VERIFY_PARAM *vpm = NULL;
993 const char *CApath = NULL, *CAfile = NULL, *CAstore = NULL;
994 const char *chCApath = NULL, *chCAfile = NULL, *chCAstore = NULL;
995 char *dpassarg = NULL, *dpass = NULL;
996 char *passarg = NULL, *pass = NULL;
997 char *vfyCApath = NULL, *vfyCAfile = NULL, *vfyCAstore = NULL;
998 char *crl_file = NULL, *prog;
999 #ifdef AF_UNIX
1000 int unlink_unix_path = 0;
1001 #endif
1002 do_server_cb server_cb;
1003 int vpmtouched = 0, build_chain = 0, no_cache = 0, ext_cache = 0;
1004 char *dhfile = NULL;
1005 int no_dhe = 0;
1006 int nocert = 0, ret = 1;
1007 int noCApath = 0, noCAfile = 0, noCAstore = 0;
1008 int s_cert_format = FORMAT_UNDEF, s_key_format = FORMAT_UNDEF;
1009 int s_dcert_format = FORMAT_UNDEF, s_dkey_format = FORMAT_UNDEF;
1010 int rev = 0, naccept = -1, sdebug = 0;
1011 int socket_family = AF_UNSPEC, socket_type = SOCK_STREAM, protocol = 0;
1012 int state = 0, crl_format = FORMAT_UNDEF, crl_download = 0;
1013 char *host = NULL;
1014 char *port = NULL;
1015 unsigned char *context = NULL;
1016 OPTION_CHOICE o;
1017 EVP_PKEY *s_key2 = NULL;
1018 X509 *s_cert2 = NULL;
1019 tlsextctx tlsextcbp = { NULL, NULL, SSL_TLSEXT_ERR_ALERT_WARNING };
1020 const char *ssl_config = NULL;
1021 int read_buf_len = 0;
1022 #ifndef OPENSSL_NO_NEXTPROTONEG
1023 const char *next_proto_neg_in = NULL;
1024 tlsextnextprotoctx next_proto = { NULL, 0 };
1025 #endif
1026 const char *alpn_in = NULL;
1027 tlsextalpnctx alpn_ctx = { NULL, 0 };
1028 #ifndef OPENSSL_NO_PSK
1029 /* by default do not send a PSK identity hint */
1030 char *psk_identity_hint = NULL;
1031 #endif
1032 char *p;
1033 #ifndef OPENSSL_NO_SRP
1034 char *srpuserseed = NULL;
1035 char *srp_verifier_file = NULL;
1036 #endif
1037 #ifndef OPENSSL_NO_SRTP
1038 char *srtp_profiles = NULL;
1039 #endif
1040 int min_version = 0, max_version = 0, prot_opt = 0, no_prot_opt = 0;
1041 int s_server_verify = SSL_VERIFY_NONE;
1042 int s_server_session_id_context = 1; /* anything will do */
1043 const char *s_cert_file = TEST_CERT, *s_key_file = NULL, *s_chain_file = NULL;
1044 const char *s_cert_file2 = TEST_CERT2, *s_key_file2 = NULL;
1045 char *s_dcert_file = NULL, *s_dkey_file = NULL, *s_dchain_file = NULL;
1046 #ifndef OPENSSL_NO_OCSP
1047 int s_tlsextstatus = 0;
1048 #endif
1049 int no_resume_ephemeral = 0;
1050 unsigned int max_send_fragment = 0;
1051 unsigned int split_send_fragment = 0, max_pipelines = 0;
1052 const char *s_serverinfo_file = NULL;
1053 const char *keylog_file = NULL;
1054 int max_early_data = -1, recv_max_early_data = -1;
1055 char *psksessf = NULL;
1056 int no_ca_names = 0;
1057 #ifndef OPENSSL_NO_SCTP
1058 int sctp_label_bug = 0;
1059 #endif
1060 int ignore_unexpected_eof = 0;
1061 #ifndef OPENSSL_NO_KTLS
1062 int enable_ktls = 0;
1063 #endif
1064 int tfo = 0;
1065
1066 /* Init of few remaining global variables */
1067 local_argc = argc;
1068 local_argv = argv;
1069
1070 ctx = ctx2 = NULL;
1071 s_nbio = s_nbio_test = 0;
1072 www = 0;
1073 bio_s_out = NULL;
1074 s_debug = 0;
1075 s_msg = 0;
1076 s_quiet = 0;
1077 s_brief = 0;
1078 async = 0;
1079 use_sendfile = 0;
1080
1081 port = OPENSSL_strdup(PORT);
1082 cctx = SSL_CONF_CTX_new();
1083 vpm = X509_VERIFY_PARAM_new();
1084 if (port == NULL || cctx == NULL || vpm == NULL)
1085 goto end;
1086 SSL_CONF_CTX_set_flags(cctx,
1087 SSL_CONF_FLAG_SERVER | SSL_CONF_FLAG_CMDLINE);
1088
1089 prog = opt_init(argc, argv, s_server_options);
1090 while ((o = opt_next()) != OPT_EOF) {
1091 if (IS_PROT_FLAG(o) && ++prot_opt > 1) {
1092 BIO_printf(bio_err, "Cannot supply multiple protocol flags\n");
1093 goto end;
1094 }
1095 if (IS_NO_PROT_FLAG(o))
1096 no_prot_opt++;
1097 if (prot_opt == 1 && no_prot_opt) {
1098 BIO_printf(bio_err,
1099 "Cannot supply both a protocol flag and '-no_<prot>'\n");
1100 goto end;
1101 }
1102 switch (o) {
1103 case OPT_EOF:
1104 case OPT_ERR:
1105 opthelp:
1106 BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
1107 goto end;
1108 case OPT_HELP:
1109 opt_help(s_server_options);
1110 ret = 0;
1111 goto end;
1112
1113 case OPT_4:
1114 #ifdef AF_UNIX
1115 if (socket_family == AF_UNIX) {
1116 OPENSSL_free(host); host = NULL;
1117 OPENSSL_free(port); port = NULL;
1118 }
1119 #endif
1120 socket_family = AF_INET;
1121 break;
1122 case OPT_6:
1123 if (1) {
1124 #ifdef AF_INET6
1125 #ifdef AF_UNIX
1126 if (socket_family == AF_UNIX) {
1127 OPENSSL_free(host); host = NULL;
1128 OPENSSL_free(port); port = NULL;
1129 }
1130 #endif
1131 socket_family = AF_INET6;
1132 } else {
1133 #endif
1134 BIO_printf(bio_err, "%s: IPv6 domain sockets unsupported\n", prog);
1135 goto end;
1136 }
1137 break;
1138 case OPT_PORT:
1139 #ifdef AF_UNIX
1140 if (socket_family == AF_UNIX) {
1141 socket_family = AF_UNSPEC;
1142 }
1143 #endif
1144 OPENSSL_free(port); port = NULL;
1145 OPENSSL_free(host); host = NULL;
1146 if (BIO_parse_hostserv(opt_arg(), NULL, &port, BIO_PARSE_PRIO_SERV) < 1) {
1147 BIO_printf(bio_err,
1148 "%s: -port argument malformed or ambiguous\n",
1149 port);
1150 goto end;
1151 }
1152 break;
1153 case OPT_ACCEPT:
1154 #ifdef AF_UNIX
1155 if (socket_family == AF_UNIX) {
1156 socket_family = AF_UNSPEC;
1157 }
1158 #endif
1159 OPENSSL_free(port); port = NULL;
1160 OPENSSL_free(host); host = NULL;
1161 if (BIO_parse_hostserv(opt_arg(), &host, &port, BIO_PARSE_PRIO_SERV) < 1) {
1162 BIO_printf(bio_err,
1163 "%s: -accept argument malformed or ambiguous\n",
1164 port);
1165 goto end;
1166 }
1167 break;
1168 #ifdef AF_UNIX
1169 case OPT_UNIX:
1170 socket_family = AF_UNIX;
1171 OPENSSL_free(host); host = OPENSSL_strdup(opt_arg());
1172 OPENSSL_free(port); port = NULL;
1173 break;
1174 case OPT_UNLINK:
1175 unlink_unix_path = 1;
1176 break;
1177 #endif
1178 case OPT_NACCEPT:
1179 naccept = atol(opt_arg());
1180 break;
1181 case OPT_VERIFY:
1182 s_server_verify = SSL_VERIFY_PEER | SSL_VERIFY_CLIENT_ONCE;
1183 verify_args.depth = atoi(opt_arg());
1184 if (!s_quiet)
1185 BIO_printf(bio_err, "verify depth is %d\n", verify_args.depth);
1186 break;
1187 case OPT_UPPER_V_VERIFY:
1188 s_server_verify =
1189 SSL_VERIFY_PEER | SSL_VERIFY_FAIL_IF_NO_PEER_CERT |
1190 SSL_VERIFY_CLIENT_ONCE;
1191 verify_args.depth = atoi(opt_arg());
1192 if (!s_quiet)
1193 BIO_printf(bio_err,
1194 "verify depth is %d, must return a certificate\n",
1195 verify_args.depth);
1196 break;
1197 case OPT_CONTEXT:
1198 context = (unsigned char *)opt_arg();
1199 break;
1200 case OPT_CERT:
1201 s_cert_file = opt_arg();
1202 break;
1203 case OPT_NAMEOPT:
1204 if (!set_nameopt(opt_arg()))
1205 goto end;
1206 break;
1207 case OPT_CRL:
1208 crl_file = opt_arg();
1209 break;
1210 case OPT_CRL_DOWNLOAD:
1211 crl_download = 1;
1212 break;
1213 case OPT_SERVERINFO:
1214 s_serverinfo_file = opt_arg();
1215 break;
1216 case OPT_CERTFORM:
1217 if (!opt_format(opt_arg(), OPT_FMT_ANY, &s_cert_format))
1218 goto opthelp;
1219 break;
1220 case OPT_KEY:
1221 s_key_file = opt_arg();
1222 break;
1223 case OPT_KEYFORM:
1224 if (!opt_format(opt_arg(), OPT_FMT_ANY, &s_key_format))
1225 goto opthelp;
1226 break;
1227 case OPT_PASS:
1228 passarg = opt_arg();
1229 break;
1230 case OPT_CERT_CHAIN:
1231 s_chain_file = opt_arg();
1232 break;
1233 case OPT_DHPARAM:
1234 dhfile = opt_arg();
1235 break;
1236 case OPT_DCERTFORM:
1237 if (!opt_format(opt_arg(), OPT_FMT_ANY, &s_dcert_format))
1238 goto opthelp;
1239 break;
1240 case OPT_DCERT:
1241 s_dcert_file = opt_arg();
1242 break;
1243 case OPT_DKEYFORM:
1244 if (!opt_format(opt_arg(), OPT_FMT_ANY, &s_dkey_format))
1245 goto opthelp;
1246 break;
1247 case OPT_DPASS:
1248 dpassarg = opt_arg();
1249 break;
1250 case OPT_DKEY:
1251 s_dkey_file = opt_arg();
1252 break;
1253 case OPT_DCERT_CHAIN:
1254 s_dchain_file = opt_arg();
1255 break;
1256 case OPT_NOCERT:
1257 nocert = 1;
1258 break;
1259 case OPT_CAPATH:
1260 CApath = opt_arg();
1261 break;
1262 case OPT_NOCAPATH:
1263 noCApath = 1;
1264 break;
1265 case OPT_CHAINCAPATH:
1266 chCApath = opt_arg();
1267 break;
1268 case OPT_VERIFYCAPATH:
1269 vfyCApath = opt_arg();
1270 break;
1271 case OPT_CASTORE:
1272 CAstore = opt_arg();
1273 break;
1274 case OPT_NOCASTORE:
1275 noCAstore = 1;
1276 break;
1277 case OPT_CHAINCASTORE:
1278 chCAstore = opt_arg();
1279 break;
1280 case OPT_VERIFYCASTORE:
1281 vfyCAstore = opt_arg();
1282 break;
1283 case OPT_NO_CACHE:
1284 no_cache = 1;
1285 break;
1286 case OPT_EXT_CACHE:
1287 ext_cache = 1;
1288 break;
1289 case OPT_CRLFORM:
1290 if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &crl_format))
1291 goto opthelp;
1292 break;
1293 case OPT_S_CASES:
1294 case OPT_S_NUM_TICKETS:
1295 case OPT_ANTI_REPLAY:
1296 case OPT_NO_ANTI_REPLAY:
1297 if (ssl_args == NULL)
1298 ssl_args = sk_OPENSSL_STRING_new_null();
1299 if (ssl_args == NULL
1300 || !sk_OPENSSL_STRING_push(ssl_args, opt_flag())
1301 || !sk_OPENSSL_STRING_push(ssl_args, opt_arg())) {
1302 BIO_printf(bio_err, "%s: Memory allocation failure\n", prog);
1303 goto end;
1304 }
1305 break;
1306 case OPT_V_CASES:
1307 if (!opt_verify(o, vpm))
1308 goto end;
1309 vpmtouched++;
1310 break;
1311 case OPT_X_CASES:
1312 if (!args_excert(o, &exc))
1313 goto end;
1314 break;
1315 case OPT_VERIFY_RET_ERROR:
1316 verify_args.return_error = 1;
1317 break;
1318 case OPT_VERIFY_QUIET:
1319 verify_args.quiet = 1;
1320 break;
1321 case OPT_BUILD_CHAIN:
1322 build_chain = 1;
1323 break;
1324 case OPT_CAFILE:
1325 CAfile = opt_arg();
1326 break;
1327 case OPT_NOCAFILE:
1328 noCAfile = 1;
1329 break;
1330 case OPT_CHAINCAFILE:
1331 chCAfile = opt_arg();
1332 break;
1333 case OPT_VERIFYCAFILE:
1334 vfyCAfile = opt_arg();
1335 break;
1336 case OPT_NBIO:
1337 s_nbio = 1;
1338 break;
1339 case OPT_NBIO_TEST:
1340 s_nbio = s_nbio_test = 1;
1341 break;
1342 case OPT_IGN_EOF:
1343 s_ign_eof = 1;
1344 break;
1345 case OPT_NO_IGN_EOF:
1346 s_ign_eof = 0;
1347 break;
1348 case OPT_DEBUG:
1349 s_debug = 1;
1350 break;
1351 case OPT_TLSEXTDEBUG:
1352 s_tlsextdebug = 1;
1353 break;
1354 case OPT_STATUS:
1355 #ifndef OPENSSL_NO_OCSP
1356 s_tlsextstatus = 1;
1357 #endif
1358 break;
1359 case OPT_STATUS_VERBOSE:
1360 #ifndef OPENSSL_NO_OCSP
1361 s_tlsextstatus = tlscstatp.verbose = 1;
1362 #endif
1363 break;
1364 case OPT_STATUS_TIMEOUT:
1365 #ifndef OPENSSL_NO_OCSP
1366 s_tlsextstatus = 1;
1367 tlscstatp.timeout = atoi(opt_arg());
1368 #endif
1369 break;
1370 case OPT_PROXY:
1371 #ifndef OPENSSL_NO_OCSP
1372 tlscstatp.proxy = opt_arg();
1373 #endif
1374 break;
1375 case OPT_NO_PROXY:
1376 #ifndef OPENSSL_NO_OCSP
1377 tlscstatp.no_proxy = opt_arg();
1378 #endif
1379 break;
1380 case OPT_STATUS_URL:
1381 #ifndef OPENSSL_NO_OCSP
1382 s_tlsextstatus = 1;
1383 if (!OSSL_HTTP_parse_url(opt_arg(), &tlscstatp.use_ssl, NULL,
1384 &tlscstatp.host, &tlscstatp.port, NULL,
1385 &tlscstatp.path, NULL, NULL)) {
1386 BIO_printf(bio_err, "Error parsing -status_url argument\n");
1387 goto end;
1388 }
1389 #endif
1390 break;
1391 case OPT_STATUS_FILE:
1392 #ifndef OPENSSL_NO_OCSP
1393 s_tlsextstatus = 1;
1394 tlscstatp.respin = opt_arg();
1395 #endif
1396 break;
1397 case OPT_MSG:
1398 s_msg = 1;
1399 break;
1400 case OPT_MSGFILE:
1401 bio_s_msg = BIO_new_file(opt_arg(), "w");
1402 if (bio_s_msg == NULL) {
1403 BIO_printf(bio_err, "Error writing file %s\n", opt_arg());
1404 goto end;
1405 }
1406 break;
1407 case OPT_TRACE:
1408 #ifndef OPENSSL_NO_SSL_TRACE
1409 s_msg = 2;
1410 #endif
1411 break;
1412 case OPT_SECURITY_DEBUG:
1413 sdebug = 1;
1414 break;
1415 case OPT_SECURITY_DEBUG_VERBOSE:
1416 sdebug = 2;
1417 break;
1418 case OPT_STATE:
1419 state = 1;
1420 break;
1421 case OPT_CRLF:
1422 s_crlf = 1;
1423 break;
1424 case OPT_QUIET:
1425 s_quiet = 1;
1426 break;
1427 case OPT_BRIEF:
1428 s_quiet = s_brief = verify_args.quiet = 1;
1429 break;
1430 case OPT_NO_DHE:
1431 no_dhe = 1;
1432 break;
1433 case OPT_NO_RESUME_EPHEMERAL:
1434 no_resume_ephemeral = 1;
1435 break;
1436 case OPT_PSK_IDENTITY:
1437 psk_identity = opt_arg();
1438 break;
1439 case OPT_PSK_HINT:
1440 #ifndef OPENSSL_NO_PSK
1441 psk_identity_hint = opt_arg();
1442 #endif
1443 break;
1444 case OPT_PSK:
1445 for (p = psk_key = opt_arg(); *p; p++) {
1446 if (isxdigit(_UC(*p)))
1447 continue;
1448 BIO_printf(bio_err, "Not a hex number '%s'\n", psk_key);
1449 goto end;
1450 }
1451 break;
1452 case OPT_PSK_SESS:
1453 psksessf = opt_arg();
1454 break;
1455 case OPT_SRPVFILE:
1456 #ifndef OPENSSL_NO_SRP
1457 srp_verifier_file = opt_arg();
1458 if (min_version < TLS1_VERSION)
1459 min_version = TLS1_VERSION;
1460 #endif
1461 break;
1462 case OPT_SRPUSERSEED:
1463 #ifndef OPENSSL_NO_SRP
1464 srpuserseed = opt_arg();
1465 if (min_version < TLS1_VERSION)
1466 min_version = TLS1_VERSION;
1467 #endif
1468 break;
1469 case OPT_REV:
1470 rev = 1;
1471 break;
1472 case OPT_WWW:
1473 www = 1;
1474 break;
1475 case OPT_UPPER_WWW:
1476 www = 2;
1477 break;
1478 case OPT_HTTP:
1479 www = 3;
1480 break;
1481 case OPT_SSL_CONFIG:
1482 ssl_config = opt_arg();
1483 break;
1484 case OPT_SSL3:
1485 min_version = SSL3_VERSION;
1486 max_version = SSL3_VERSION;
1487 break;
1488 case OPT_TLS1_3:
1489 min_version = TLS1_3_VERSION;
1490 max_version = TLS1_3_VERSION;
1491 break;
1492 case OPT_TLS1_2:
1493 min_version = TLS1_2_VERSION;
1494 max_version = TLS1_2_VERSION;
1495 break;
1496 case OPT_TLS1_1:
1497 min_version = TLS1_1_VERSION;
1498 max_version = TLS1_1_VERSION;
1499 break;
1500 case OPT_TLS1:
1501 min_version = TLS1_VERSION;
1502 max_version = TLS1_VERSION;
1503 break;
1504 case OPT_DTLS:
1505 #ifndef OPENSSL_NO_DTLS
1506 meth = DTLS_server_method();
1507 socket_type = SOCK_DGRAM;
1508 #endif
1509 break;
1510 case OPT_DTLS1:
1511 #ifndef OPENSSL_NO_DTLS
1512 meth = DTLS_server_method();
1513 min_version = DTLS1_VERSION;
1514 max_version = DTLS1_VERSION;
1515 socket_type = SOCK_DGRAM;
1516 #endif
1517 break;
1518 case OPT_DTLS1_2:
1519 #ifndef OPENSSL_NO_DTLS
1520 meth = DTLS_server_method();
1521 min_version = DTLS1_2_VERSION;
1522 max_version = DTLS1_2_VERSION;
1523 socket_type = SOCK_DGRAM;
1524 #endif
1525 break;
1526 case OPT_SCTP:
1527 #ifndef OPENSSL_NO_SCTP
1528 protocol = IPPROTO_SCTP;
1529 #endif
1530 break;
1531 case OPT_SCTP_LABEL_BUG:
1532 #ifndef OPENSSL_NO_SCTP
1533 sctp_label_bug = 1;
1534 #endif
1535 break;
1536 case OPT_TIMEOUT:
1537 #ifndef OPENSSL_NO_DTLS
1538 enable_timeouts = 1;
1539 #endif
1540 break;
1541 case OPT_MTU:
1542 #ifndef OPENSSL_NO_DTLS
1543 socket_mtu = atol(opt_arg());
1544 #endif
1545 break;
1546 case OPT_LISTEN:
1547 #ifndef OPENSSL_NO_DTLS
1548 dtlslisten = 1;
1549 #endif
1550 break;
1551 case OPT_STATELESS:
1552 stateless = 1;
1553 break;
1554 case OPT_ID_PREFIX:
1555 session_id_prefix = opt_arg();
1556 break;
1557 case OPT_ENGINE:
1558 #ifndef OPENSSL_NO_ENGINE
1559 engine = setup_engine(opt_arg(), s_debug);
1560 #endif
1561 break;
1562 case OPT_R_CASES:
1563 if (!opt_rand(o))
1564 goto end;
1565 break;
1566 case OPT_PROV_CASES:
1567 if (!opt_provider(o))
1568 goto end;
1569 break;
1570 case OPT_SERVERNAME:
1571 tlsextcbp.servername = opt_arg();
1572 break;
1573 case OPT_SERVERNAME_FATAL:
1574 tlsextcbp.extension_error = SSL_TLSEXT_ERR_ALERT_FATAL;
1575 break;
1576 case OPT_CERT2:
1577 s_cert_file2 = opt_arg();
1578 break;
1579 case OPT_KEY2:
1580 s_key_file2 = opt_arg();
1581 break;
1582 case OPT_NEXTPROTONEG:
1583 # ifndef OPENSSL_NO_NEXTPROTONEG
1584 next_proto_neg_in = opt_arg();
1585 #endif
1586 break;
1587 case OPT_ALPN:
1588 alpn_in = opt_arg();
1589 break;
1590 case OPT_SRTP_PROFILES:
1591 #ifndef OPENSSL_NO_SRTP
1592 srtp_profiles = opt_arg();
1593 #endif
1594 break;
1595 case OPT_KEYMATEXPORT:
1596 keymatexportlabel = opt_arg();
1597 break;
1598 case OPT_KEYMATEXPORTLEN:
1599 keymatexportlen = atoi(opt_arg());
1600 break;
1601 case OPT_ASYNC:
1602 async = 1;
1603 break;
1604 case OPT_MAX_SEND_FRAG:
1605 max_send_fragment = atoi(opt_arg());
1606 break;
1607 case OPT_SPLIT_SEND_FRAG:
1608 split_send_fragment = atoi(opt_arg());
1609 break;
1610 case OPT_MAX_PIPELINES:
1611 max_pipelines = atoi(opt_arg());
1612 break;
1613 case OPT_READ_BUF:
1614 read_buf_len = atoi(opt_arg());
1615 break;
1616 case OPT_KEYLOG_FILE:
1617 keylog_file = opt_arg();
1618 break;
1619 case OPT_MAX_EARLY:
1620 max_early_data = atoi(opt_arg());
1621 if (max_early_data < 0) {
1622 BIO_printf(bio_err, "Invalid value for max_early_data\n");
1623 goto end;
1624 }
1625 break;
1626 case OPT_RECV_MAX_EARLY:
1627 recv_max_early_data = atoi(opt_arg());
1628 if (recv_max_early_data < 0) {
1629 BIO_printf(bio_err, "Invalid value for recv_max_early_data\n");
1630 goto end;
1631 }
1632 break;
1633 case OPT_EARLY_DATA:
1634 early_data = 1;
1635 if (max_early_data == -1)
1636 max_early_data = SSL3_RT_MAX_PLAIN_LENGTH;
1637 break;
1638 case OPT_HTTP_SERVER_BINMODE:
1639 http_server_binmode = 1;
1640 break;
1641 case OPT_NOCANAMES:
1642 no_ca_names = 1;
1643 break;
1644 case OPT_KTLS:
1645 #ifndef OPENSSL_NO_KTLS
1646 enable_ktls = 1;
1647 #endif
1648 break;
1649 case OPT_SENDFILE:
1650 #ifndef OPENSSL_NO_KTLS
1651 use_sendfile = 1;
1652 #endif
1653 break;
1654 case OPT_IGNORE_UNEXPECTED_EOF:
1655 ignore_unexpected_eof = 1;
1656 break;
1657 case OPT_TFO:
1658 tfo = 1;
1659 break;
1660 }
1661 }
1662
1663 /* No extra arguments. */
1664 if (!opt_check_rest_arg(NULL))
1665 goto opthelp;
1666
1667 if (!app_RAND_load())
1668 goto end;
1669
1670 #ifndef OPENSSL_NO_NEXTPROTONEG
1671 if (min_version == TLS1_3_VERSION && next_proto_neg_in != NULL) {
1672 BIO_printf(bio_err, "Cannot supply -nextprotoneg with TLSv1.3\n");
1673 goto opthelp;
1674 }
1675 #endif
1676 #ifndef OPENSSL_NO_DTLS
1677 if (www && socket_type == SOCK_DGRAM) {
1678 BIO_printf(bio_err, "Can't use -HTTP, -www or -WWW with DTLS\n");
1679 goto end;
1680 }
1681
1682 if (dtlslisten && socket_type != SOCK_DGRAM) {
1683 BIO_printf(bio_err, "Can only use -listen with DTLS\n");
1684 goto end;
1685 }
1686 #endif
1687
1688 if (tfo && socket_type != SOCK_STREAM) {
1689 BIO_printf(bio_err, "Can only use -tfo with TLS\n");
1690 goto end;
1691 }
1692
1693 if (stateless && socket_type != SOCK_STREAM) {
1694 BIO_printf(bio_err, "Can only use --stateless with TLS\n");
1695 goto end;
1696 }
1697
1698 #ifdef AF_UNIX
1699 if (socket_family == AF_UNIX && socket_type != SOCK_STREAM) {
1700 BIO_printf(bio_err,
1701 "Can't use unix sockets and datagrams together\n");
1702 goto end;
1703 }
1704 #endif
1705 if (early_data && (www > 0 || rev)) {
1706 BIO_printf(bio_err,
1707 "Can't use -early_data in combination with -www, -WWW, -HTTP, or -rev\n");
1708 goto end;
1709 }
1710
1711 #ifndef OPENSSL_NO_SCTP
1712 if (protocol == IPPROTO_SCTP) {
1713 if (socket_type != SOCK_DGRAM) {
1714 BIO_printf(bio_err, "Can't use -sctp without DTLS\n");
1715 goto end;
1716 }
1717 /* SCTP is unusual. It uses DTLS over a SOCK_STREAM protocol */
1718 socket_type = SOCK_STREAM;
1719 }
1720 #endif
1721
1722 #ifndef OPENSSL_NO_KTLS
1723 if (use_sendfile && enable_ktls == 0) {
1724 BIO_printf(bio_out, "Warning: -sendfile depends on -ktls, enabling -ktls now.\n");
1725 enable_ktls = 1;
1726 }
1727
1728 if (use_sendfile && www <= 1) {
1729 BIO_printf(bio_err, "Can't use -sendfile without -WWW or -HTTP\n");
1730 goto end;
1731 }
1732 #endif
1733
1734 if (!app_passwd(passarg, dpassarg, &pass, &dpass)) {
1735 BIO_printf(bio_err, "Error getting password\n");
1736 goto end;
1737 }
1738
1739 if (s_key_file == NULL)
1740 s_key_file = s_cert_file;
1741
1742 if (s_key_file2 == NULL)
1743 s_key_file2 = s_cert_file2;
1744
1745 if (!load_excert(&exc))
1746 goto end;
1747
1748 if (nocert == 0) {
1749 s_key = load_key(s_key_file, s_key_format, 0, pass, engine,
1750 "server certificate private key");
1751 if (s_key == NULL)
1752 goto end;
1753
1754 s_cert = load_cert_pass(s_cert_file, s_cert_format, 1, pass,
1755 "server certificate");
1756
1757 if (s_cert == NULL)
1758 goto end;
1759 if (s_chain_file != NULL) {
1760 if (!load_certs(s_chain_file, 0, &s_chain, NULL,
1761 "server certificate chain"))
1762 goto end;
1763 }
1764
1765 if (tlsextcbp.servername != NULL) {
1766 s_key2 = load_key(s_key_file2, s_key_format, 0, pass, engine,
1767 "second server certificate private key");
1768 if (s_key2 == NULL)
1769 goto end;
1770
1771 s_cert2 = load_cert_pass(s_cert_file2, s_cert_format, 1, pass,
1772 "second server certificate");
1773
1774 if (s_cert2 == NULL)
1775 goto end;
1776 }
1777 }
1778 #if !defined(OPENSSL_NO_NEXTPROTONEG)
1779 if (next_proto_neg_in) {
1780 next_proto.data = next_protos_parse(&next_proto.len, next_proto_neg_in);
1781 if (next_proto.data == NULL)
1782 goto end;
1783 }
1784 #endif
1785 alpn_ctx.data = NULL;
1786 if (alpn_in) {
1787 alpn_ctx.data = next_protos_parse(&alpn_ctx.len, alpn_in);
1788 if (alpn_ctx.data == NULL)
1789 goto end;
1790 }
1791
1792 if (crl_file != NULL) {
1793 X509_CRL *crl;
1794 crl = load_crl(crl_file, crl_format, 0, "CRL");
1795 if (crl == NULL)
1796 goto end;
1797 crls = sk_X509_CRL_new_null();
1798 if (crls == NULL || !sk_X509_CRL_push(crls, crl)) {
1799 BIO_puts(bio_err, "Error adding CRL\n");
1800 ERR_print_errors(bio_err);
1801 X509_CRL_free(crl);
1802 goto end;
1803 }
1804 }
1805
1806 if (s_dcert_file != NULL) {
1807
1808 if (s_dkey_file == NULL)
1809 s_dkey_file = s_dcert_file;
1810
1811 s_dkey = load_key(s_dkey_file, s_dkey_format,
1812 0, dpass, engine, "second certificate private key");
1813 if (s_dkey == NULL)
1814 goto end;
1815
1816 s_dcert = load_cert_pass(s_dcert_file, s_dcert_format, 1, dpass,
1817 "second server certificate");
1818
1819 if (s_dcert == NULL) {
1820 ERR_print_errors(bio_err);
1821 goto end;
1822 }
1823 if (s_dchain_file != NULL) {
1824 if (!load_certs(s_dchain_file, 0, &s_dchain, NULL,
1825 "second server certificate chain"))
1826 goto end;
1827 }
1828
1829 }
1830
1831 if (bio_s_out == NULL) {
1832 if (s_quiet && !s_debug) {
1833 bio_s_out = BIO_new(BIO_s_null());
1834 if (s_msg && bio_s_msg == NULL) {
1835 bio_s_msg = dup_bio_out(FORMAT_TEXT);
1836 if (bio_s_msg == NULL) {
1837 BIO_printf(bio_err, "Out of memory\n");
1838 goto end;
1839 }
1840 }
1841 } else {
1842 bio_s_out = dup_bio_out(FORMAT_TEXT);
1843 }
1844 }
1845
1846 if (bio_s_out == NULL)
1847 goto end;
1848
1849 if (nocert) {
1850 s_cert_file = NULL;
1851 s_key_file = NULL;
1852 s_dcert_file = NULL;
1853 s_dkey_file = NULL;
1854 s_cert_file2 = NULL;
1855 s_key_file2 = NULL;
1856 }
1857
1858 ctx = SSL_CTX_new_ex(app_get0_libctx(), app_get0_propq(), meth);
1859 if (ctx == NULL) {
1860 ERR_print_errors(bio_err);
1861 goto end;
1862 }
1863
1864 SSL_CTX_clear_mode(ctx, SSL_MODE_AUTO_RETRY);
1865
1866 if (sdebug)
1867 ssl_ctx_security_debug(ctx, sdebug);
1868
1869 if (!config_ctx(cctx, ssl_args, ctx))
1870 goto end;
1871
1872 if (ssl_config) {
1873 if (SSL_CTX_config(ctx, ssl_config) == 0) {
1874 BIO_printf(bio_err, "Error using configuration \"%s\"\n",
1875 ssl_config);
1876 ERR_print_errors(bio_err);
1877 goto end;
1878 }
1879 }
1880 #ifndef OPENSSL_NO_SCTP
1881 if (protocol == IPPROTO_SCTP && sctp_label_bug == 1)
1882 SSL_CTX_set_mode(ctx, SSL_MODE_DTLS_SCTP_LABEL_LENGTH_BUG);
1883 #endif
1884
1885 if (min_version != 0
1886 && SSL_CTX_set_min_proto_version(ctx, min_version) == 0)
1887 goto end;
1888 if (max_version != 0
1889 && SSL_CTX_set_max_proto_version(ctx, max_version) == 0)
1890 goto end;
1891
1892 if (session_id_prefix) {
1893 if (strlen(session_id_prefix) >= 32)
1894 BIO_printf(bio_err,
1895 "warning: id_prefix is too long, only one new session will be possible\n");
1896 if (!SSL_CTX_set_generate_session_id(ctx, generate_session_id)) {
1897 BIO_printf(bio_err, "error setting 'id_prefix'\n");
1898 ERR_print_errors(bio_err);
1899 goto end;
1900 }
1901 BIO_printf(bio_err, "id_prefix '%s' set.\n", session_id_prefix);
1902 }
1903 if (exc != NULL)
1904 ssl_ctx_set_excert(ctx, exc);
1905
1906 if (state)
1907 SSL_CTX_set_info_callback(ctx, apps_ssl_info_callback);
1908 if (no_cache)
1909 SSL_CTX_set_session_cache_mode(ctx, SSL_SESS_CACHE_OFF);
1910 else if (ext_cache)
1911 init_session_cache_ctx(ctx);
1912 else
1913 SSL_CTX_sess_set_cache_size(ctx, 128);
1914
1915 if (async) {
1916 SSL_CTX_set_mode(ctx, SSL_MODE_ASYNC);
1917 }
1918
1919 if (no_ca_names) {
1920 SSL_CTX_set_options(ctx, SSL_OP_DISABLE_TLSEXT_CA_NAMES);
1921 }
1922
1923 if (ignore_unexpected_eof)
1924 SSL_CTX_set_options(ctx, SSL_OP_IGNORE_UNEXPECTED_EOF);
1925 #ifndef OPENSSL_NO_KTLS
1926 if (enable_ktls)
1927 SSL_CTX_set_options(ctx, SSL_OP_ENABLE_KTLS);
1928 #endif
1929
1930 if (max_send_fragment > 0
1931 && !SSL_CTX_set_max_send_fragment(ctx, max_send_fragment)) {
1932 BIO_printf(bio_err, "%s: Max send fragment size %u is out of permitted range\n",
1933 prog, max_send_fragment);
1934 goto end;
1935 }
1936
1937 if (split_send_fragment > 0
1938 && !SSL_CTX_set_split_send_fragment(ctx, split_send_fragment)) {
1939 BIO_printf(bio_err, "%s: Split send fragment size %u is out of permitted range\n",
1940 prog, split_send_fragment);
1941 goto end;
1942 }
1943 if (max_pipelines > 0
1944 && !SSL_CTX_set_max_pipelines(ctx, max_pipelines)) {
1945 BIO_printf(bio_err, "%s: Max pipelines %u is out of permitted range\n",
1946 prog, max_pipelines);
1947 goto end;
1948 }
1949
1950 if (read_buf_len > 0) {
1951 SSL_CTX_set_default_read_buffer_len(ctx, read_buf_len);
1952 }
1953 #ifndef OPENSSL_NO_SRTP
1954 if (srtp_profiles != NULL) {
1955 /* Returns 0 on success! */
1956 if (SSL_CTX_set_tlsext_use_srtp(ctx, srtp_profiles) != 0) {
1957 BIO_printf(bio_err, "Error setting SRTP profile\n");
1958 ERR_print_errors(bio_err);
1959 goto end;
1960 }
1961 }
1962 #endif
1963
1964 if (!ctx_set_verify_locations(ctx, CAfile, noCAfile, CApath, noCApath,
1965 CAstore, noCAstore)) {
1966 ERR_print_errors(bio_err);
1967 goto end;
1968 }
1969 if (vpmtouched && !SSL_CTX_set1_param(ctx, vpm)) {
1970 BIO_printf(bio_err, "Error setting verify params\n");
1971 ERR_print_errors(bio_err);
1972 goto end;
1973 }
1974
1975 ssl_ctx_add_crls(ctx, crls, 0);
1976
1977 if (!ssl_load_stores(ctx,
1978 vfyCApath, vfyCAfile, vfyCAstore,
1979 chCApath, chCAfile, chCAstore,
1980 crls, crl_download)) {
1981 BIO_printf(bio_err, "Error loading store locations\n");
1982 ERR_print_errors(bio_err);
1983 goto end;
1984 }
1985
1986 if (s_cert2) {
1987 ctx2 = SSL_CTX_new_ex(app_get0_libctx(), app_get0_propq(), meth);
1988 if (ctx2 == NULL) {
1989 ERR_print_errors(bio_err);
1990 goto end;
1991 }
1992 }
1993
1994 if (ctx2 != NULL) {
1995 BIO_printf(bio_s_out, "Setting secondary ctx parameters\n");
1996
1997 if (sdebug)
1998 ssl_ctx_security_debug(ctx2, sdebug);
1999
2000 if (session_id_prefix) {
2001 if (strlen(session_id_prefix) >= 32)
2002 BIO_printf(bio_err,
2003 "warning: id_prefix is too long, only one new session will be possible\n");
2004 if (!SSL_CTX_set_generate_session_id(ctx2, generate_session_id)) {
2005 BIO_printf(bio_err, "error setting 'id_prefix'\n");
2006 ERR_print_errors(bio_err);
2007 goto end;
2008 }
2009 BIO_printf(bio_err, "id_prefix '%s' set.\n", session_id_prefix);
2010 }
2011 if (exc != NULL)
2012 ssl_ctx_set_excert(ctx2, exc);
2013
2014 if (state)
2015 SSL_CTX_set_info_callback(ctx2, apps_ssl_info_callback);
2016
2017 if (no_cache)
2018 SSL_CTX_set_session_cache_mode(ctx2, SSL_SESS_CACHE_OFF);
2019 else if (ext_cache)
2020 init_session_cache_ctx(ctx2);
2021 else
2022 SSL_CTX_sess_set_cache_size(ctx2, 128);
2023
2024 if (async)
2025 SSL_CTX_set_mode(ctx2, SSL_MODE_ASYNC);
2026
2027 if (!ctx_set_verify_locations(ctx2, CAfile, noCAfile, CApath,
2028 noCApath, CAstore, noCAstore)) {
2029 ERR_print_errors(bio_err);
2030 goto end;
2031 }
2032 if (vpmtouched && !SSL_CTX_set1_param(ctx2, vpm)) {
2033 BIO_printf(bio_err, "Error setting verify params\n");
2034 ERR_print_errors(bio_err);
2035 goto end;
2036 }
2037
2038 ssl_ctx_add_crls(ctx2, crls, 0);
2039 if (!config_ctx(cctx, ssl_args, ctx2))
2040 goto end;
2041 }
2042 #ifndef OPENSSL_NO_NEXTPROTONEG
2043 if (next_proto.data)
2044 SSL_CTX_set_next_protos_advertised_cb(ctx, next_proto_cb,
2045 &next_proto);
2046 #endif
2047 if (alpn_ctx.data)
2048 SSL_CTX_set_alpn_select_cb(ctx, alpn_cb, &alpn_ctx);
2049
2050 if (!no_dhe) {
2051 EVP_PKEY *dhpkey = NULL;
2052
2053 if (dhfile != NULL)
2054 dhpkey = load_keyparams(dhfile, FORMAT_UNDEF, 0, "DH", "DH parameters");
2055 else if (s_cert_file != NULL)
2056 dhpkey = load_keyparams_suppress(s_cert_file, FORMAT_UNDEF, 0, "DH",
2057 "DH parameters", 1);
2058
2059 if (dhpkey != NULL) {
2060 BIO_printf(bio_s_out, "Setting temp DH parameters\n");
2061 } else {
2062 BIO_printf(bio_s_out, "Using default temp DH parameters\n");
2063 }
2064 (void)BIO_flush(bio_s_out);
2065
2066 if (dhpkey == NULL) {
2067 SSL_CTX_set_dh_auto(ctx, 1);
2068 } else {
2069 /*
2070 * We need 2 references: one for use by ctx and one for use by
2071 * ctx2
2072 */
2073 if (!EVP_PKEY_up_ref(dhpkey)) {
2074 EVP_PKEY_free(dhpkey);
2075 goto end;
2076 }
2077 if (!SSL_CTX_set0_tmp_dh_pkey(ctx, dhpkey)) {
2078 BIO_puts(bio_err, "Error setting temp DH parameters\n");
2079 ERR_print_errors(bio_err);
2080 /* Free 2 references */
2081 EVP_PKEY_free(dhpkey);
2082 EVP_PKEY_free(dhpkey);
2083 goto end;
2084 }
2085 }
2086
2087 if (ctx2 != NULL) {
2088 if (dhfile != NULL) {
2089 EVP_PKEY *dhpkey2 = load_keyparams_suppress(s_cert_file2,
2090 FORMAT_UNDEF,
2091 0, "DH",
2092 "DH parameters", 1);
2093
2094 if (dhpkey2 != NULL) {
2095 BIO_printf(bio_s_out, "Setting temp DH parameters\n");
2096 (void)BIO_flush(bio_s_out);
2097
2098 EVP_PKEY_free(dhpkey);
2099 dhpkey = dhpkey2;
2100 }
2101 }
2102 if (dhpkey == NULL) {
2103 SSL_CTX_set_dh_auto(ctx2, 1);
2104 } else if (!SSL_CTX_set0_tmp_dh_pkey(ctx2, dhpkey)) {
2105 BIO_puts(bio_err, "Error setting temp DH parameters\n");
2106 ERR_print_errors(bio_err);
2107 EVP_PKEY_free(dhpkey);
2108 goto end;
2109 }
2110 dhpkey = NULL;
2111 }
2112 EVP_PKEY_free(dhpkey);
2113 }
2114
2115 if (!set_cert_key_stuff(ctx, s_cert, s_key, s_chain, build_chain))
2116 goto end;
2117
2118 if (s_serverinfo_file != NULL
2119 && !SSL_CTX_use_serverinfo_file(ctx, s_serverinfo_file)) {
2120 ERR_print_errors(bio_err);
2121 goto end;
2122 }
2123
2124 if (ctx2 != NULL
2125 && !set_cert_key_stuff(ctx2, s_cert2, s_key2, NULL, build_chain))
2126 goto end;
2127
2128 if (s_dcert != NULL) {
2129 if (!set_cert_key_stuff(ctx, s_dcert, s_dkey, s_dchain, build_chain))
2130 goto end;
2131 }
2132
2133 if (no_resume_ephemeral) {
2134 SSL_CTX_set_not_resumable_session_callback(ctx,
2135 not_resumable_sess_cb);
2136
2137 if (ctx2 != NULL)
2138 SSL_CTX_set_not_resumable_session_callback(ctx2,
2139 not_resumable_sess_cb);
2140 }
2141 #ifndef OPENSSL_NO_PSK
2142 if (psk_key != NULL) {
2143 if (s_debug)
2144 BIO_printf(bio_s_out, "PSK key given, setting server callback\n");
2145 SSL_CTX_set_psk_server_callback(ctx, psk_server_cb);
2146 }
2147
2148 if (psk_identity_hint != NULL) {
2149 if (min_version == TLS1_3_VERSION) {
2150 BIO_printf(bio_s_out, "PSK warning: there is NO identity hint in TLSv1.3\n");
2151 } else {
2152 if (!SSL_CTX_use_psk_identity_hint(ctx, psk_identity_hint)) {
2153 BIO_printf(bio_err, "error setting PSK identity hint to context\n");
2154 ERR_print_errors(bio_err);
2155 goto end;
2156 }
2157 }
2158 }
2159 #endif
2160 if (psksessf != NULL) {
2161 BIO *stmp = BIO_new_file(psksessf, "r");
2162
2163 if (stmp == NULL) {
2164 BIO_printf(bio_err, "Can't open PSK session file %s\n", psksessf);
2165 ERR_print_errors(bio_err);
2166 goto end;
2167 }
2168 psksess = PEM_read_bio_SSL_SESSION(stmp, NULL, 0, NULL);
2169 BIO_free(stmp);
2170 if (psksess == NULL) {
2171 BIO_printf(bio_err, "Can't read PSK session file %s\n", psksessf);
2172 ERR_print_errors(bio_err);
2173 goto end;
2174 }
2175
2176 }
2177
2178 if (psk_key != NULL || psksess != NULL)
2179 SSL_CTX_set_psk_find_session_callback(ctx, psk_find_session_cb);
2180
2181 SSL_CTX_set_verify(ctx, s_server_verify, verify_callback);
2182 if (!SSL_CTX_set_session_id_context(ctx,
2183 (void *)&s_server_session_id_context,
2184 sizeof(s_server_session_id_context))) {
2185 BIO_printf(bio_err, "error setting session id context\n");
2186 ERR_print_errors(bio_err);
2187 goto end;
2188 }
2189
2190 /* Set DTLS cookie generation and verification callbacks */
2191 SSL_CTX_set_cookie_generate_cb(ctx, generate_cookie_callback);
2192 SSL_CTX_set_cookie_verify_cb(ctx, verify_cookie_callback);
2193
2194 /* Set TLS1.3 cookie generation and verification callbacks */
2195 SSL_CTX_set_stateless_cookie_generate_cb(ctx, generate_stateless_cookie_callback);
2196 SSL_CTX_set_stateless_cookie_verify_cb(ctx, verify_stateless_cookie_callback);
2197
2198 if (ctx2 != NULL) {
2199 SSL_CTX_set_verify(ctx2, s_server_verify, verify_callback);
2200 if (!SSL_CTX_set_session_id_context(ctx2,
2201 (void *)&s_server_session_id_context,
2202 sizeof(s_server_session_id_context))) {
2203 BIO_printf(bio_err, "error setting session id context\n");
2204 ERR_print_errors(bio_err);
2205 goto end;
2206 }
2207 tlsextcbp.biodebug = bio_s_out;
2208 SSL_CTX_set_tlsext_servername_callback(ctx2, ssl_servername_cb);
2209 SSL_CTX_set_tlsext_servername_arg(ctx2, &tlsextcbp);
2210 SSL_CTX_set_tlsext_servername_callback(ctx, ssl_servername_cb);
2211 SSL_CTX_set_tlsext_servername_arg(ctx, &tlsextcbp);
2212 }
2213
2214 #ifndef OPENSSL_NO_SRP
2215 if (srp_verifier_file != NULL) {
2216 if (!set_up_srp_verifier_file(ctx, &srp_callback_parm, srpuserseed,
2217 srp_verifier_file))
2218 goto end;
2219 } else
2220 #endif
2221 if (CAfile != NULL) {
2222 SSL_CTX_set_client_CA_list(ctx, SSL_load_client_CA_file(CAfile));
2223
2224 if (ctx2)
2225 SSL_CTX_set_client_CA_list(ctx2, SSL_load_client_CA_file(CAfile));
2226 }
2227 #ifndef OPENSSL_NO_OCSP
2228 if (s_tlsextstatus) {
2229 SSL_CTX_set_tlsext_status_cb(ctx, cert_status_cb);
2230 SSL_CTX_set_tlsext_status_arg(ctx, &tlscstatp);
2231 if (ctx2) {
2232 SSL_CTX_set_tlsext_status_cb(ctx2, cert_status_cb);
2233 SSL_CTX_set_tlsext_status_arg(ctx2, &tlscstatp);
2234 }
2235 }
2236 #endif
2237 if (set_keylog_file(ctx, keylog_file))
2238 goto end;
2239
2240 if (max_early_data >= 0)
2241 SSL_CTX_set_max_early_data(ctx, max_early_data);
2242 if (recv_max_early_data >= 0)
2243 SSL_CTX_set_recv_max_early_data(ctx, recv_max_early_data);
2244
2245 if (rev)
2246 server_cb = rev_body;
2247 else if (www)
2248 server_cb = www_body;
2249 else
2250 server_cb = sv_body;
2251 #ifdef AF_UNIX
2252 if (socket_family == AF_UNIX
2253 && unlink_unix_path)
2254 unlink(host);
2255 #endif
2256 if (tfo)
2257 BIO_printf(bio_s_out, "Listening for TFO\n");
2258 do_server(&accept_socket, host, port, socket_family, socket_type, protocol,
2259 server_cb, context, naccept, bio_s_out, tfo);
2260 print_stats(bio_s_out, ctx);
2261 ret = 0;
2262 end:
2263 SSL_CTX_free(ctx);
2264 SSL_SESSION_free(psksess);
2265 set_keylog_file(NULL, NULL);
2266 X509_free(s_cert);
2267 sk_X509_CRL_pop_free(crls, X509_CRL_free);
2268 X509_free(s_dcert);
2269 EVP_PKEY_free(s_key);
2270 EVP_PKEY_free(s_dkey);
2271 OSSL_STACK_OF_X509_free(s_chain);
2272 OSSL_STACK_OF_X509_free(s_dchain);
2273 OPENSSL_free(pass);
2274 OPENSSL_free(dpass);
2275 OPENSSL_free(host);
2276 OPENSSL_free(port);
2277 X509_VERIFY_PARAM_free(vpm);
2278 free_sessions();
2279 OPENSSL_free(tlscstatp.host);
2280 OPENSSL_free(tlscstatp.port);
2281 OPENSSL_free(tlscstatp.path);
2282 SSL_CTX_free(ctx2);
2283 X509_free(s_cert2);
2284 EVP_PKEY_free(s_key2);
2285 #ifndef OPENSSL_NO_NEXTPROTONEG
2286 OPENSSL_free(next_proto.data);
2287 #endif
2288 OPENSSL_free(alpn_ctx.data);
2289 ssl_excert_free(exc);
2290 sk_OPENSSL_STRING_free(ssl_args);
2291 SSL_CONF_CTX_free(cctx);
2292 release_engine(engine);
2293 BIO_free(bio_s_out);
2294 bio_s_out = NULL;
2295 BIO_free(bio_s_msg);
2296 bio_s_msg = NULL;
2297 #ifdef CHARSET_EBCDIC
2298 BIO_meth_free(methods_ebcdic);
2299 #endif
2300 return ret;
2301 }
2302
2303 static void print_stats(BIO *bio, SSL_CTX *ssl_ctx)
2304 {
2305 BIO_printf(bio, "%4ld items in the session cache\n",
2306 SSL_CTX_sess_number(ssl_ctx));
2307 BIO_printf(bio, "%4ld client connects (SSL_connect())\n",
2308 SSL_CTX_sess_connect(ssl_ctx));
2309 BIO_printf(bio, "%4ld client renegotiates (SSL_connect())\n",
2310 SSL_CTX_sess_connect_renegotiate(ssl_ctx));
2311 BIO_printf(bio, "%4ld client connects that finished\n",
2312 SSL_CTX_sess_connect_good(ssl_ctx));
2313 BIO_printf(bio, "%4ld server accepts (SSL_accept())\n",
2314 SSL_CTX_sess_accept(ssl_ctx));
2315 BIO_printf(bio, "%4ld server renegotiates (SSL_accept())\n",
2316 SSL_CTX_sess_accept_renegotiate(ssl_ctx));
2317 BIO_printf(bio, "%4ld server accepts that finished\n",
2318 SSL_CTX_sess_accept_good(ssl_ctx));
2319 BIO_printf(bio, "%4ld session cache hits\n", SSL_CTX_sess_hits(ssl_ctx));
2320 BIO_printf(bio, "%4ld session cache misses\n",
2321 SSL_CTX_sess_misses(ssl_ctx));
2322 BIO_printf(bio, "%4ld session cache timeouts\n",
2323 SSL_CTX_sess_timeouts(ssl_ctx));
2324 BIO_printf(bio, "%4ld callback cache hits\n",
2325 SSL_CTX_sess_cb_hits(ssl_ctx));
2326 BIO_printf(bio, "%4ld cache full overflows (%ld allowed)\n",
2327 SSL_CTX_sess_cache_full(ssl_ctx),
2328 SSL_CTX_sess_get_cache_size(ssl_ctx));
2329 }
2330
2331 static int sv_body(int s, int stype, int prot, unsigned char *context)
2332 {
2333 char *buf = NULL;
2334 fd_set readfds;
2335 int ret = 1, width;
2336 int k, i;
2337 unsigned long l;
2338 SSL *con = NULL;
2339 BIO *sbio;
2340 struct timeval timeout;
2341 #if !(defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS))
2342 struct timeval *timeoutp;
2343 #endif
2344 #ifndef OPENSSL_NO_DTLS
2345 # ifndef OPENSSL_NO_SCTP
2346 int isdtls = (stype == SOCK_DGRAM || prot == IPPROTO_SCTP);
2347 # else
2348 int isdtls = (stype == SOCK_DGRAM);
2349 # endif
2350 #endif
2351
2352 buf = app_malloc(bufsize, "server buffer");
2353 if (s_nbio) {
2354 if (!BIO_socket_nbio(s, 1))
2355 ERR_print_errors(bio_err);
2356 else if (!s_quiet)
2357 BIO_printf(bio_err, "Turned on non blocking io\n");
2358 }
2359
2360 con = SSL_new(ctx);
2361 if (con == NULL) {
2362 ret = -1;
2363 goto err;
2364 }
2365
2366 if (s_tlsextdebug) {
2367 SSL_set_tlsext_debug_callback(con, tlsext_cb);
2368 SSL_set_tlsext_debug_arg(con, bio_s_out);
2369 }
2370
2371 if (context != NULL
2372 && !SSL_set_session_id_context(con, context,
2373 strlen((char *)context))) {
2374 BIO_printf(bio_err, "Error setting session id context\n");
2375 ret = -1;
2376 goto err;
2377 }
2378
2379 if (!SSL_clear(con)) {
2380 BIO_printf(bio_err, "Error clearing SSL connection\n");
2381 ret = -1;
2382 goto err;
2383 }
2384 #ifndef OPENSSL_NO_DTLS
2385 if (isdtls) {
2386 # ifndef OPENSSL_NO_SCTP
2387 if (prot == IPPROTO_SCTP)
2388 sbio = BIO_new_dgram_sctp(s, BIO_NOCLOSE);
2389 else
2390 # endif
2391 sbio = BIO_new_dgram(s, BIO_NOCLOSE);
2392 if (sbio == NULL) {
2393 BIO_printf(bio_err, "Unable to create BIO\n");
2394 ERR_print_errors(bio_err);
2395 goto err;
2396 }
2397
2398 if (enable_timeouts) {
2399 timeout.tv_sec = 0;
2400 timeout.tv_usec = DGRAM_RCV_TIMEOUT;
2401 BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_RECV_TIMEOUT, 0, &timeout);
2402
2403 timeout.tv_sec = 0;
2404 timeout.tv_usec = DGRAM_SND_TIMEOUT;
2405 BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_SEND_TIMEOUT, 0, &timeout);
2406 }
2407
2408 if (socket_mtu) {
2409 if (socket_mtu < DTLS_get_link_min_mtu(con)) {
2410 BIO_printf(bio_err, "MTU too small. Must be at least %ld\n",
2411 DTLS_get_link_min_mtu(con));
2412 ret = -1;
2413 BIO_free(sbio);
2414 goto err;
2415 }
2416 SSL_set_options(con, SSL_OP_NO_QUERY_MTU);
2417 if (!DTLS_set_link_mtu(con, socket_mtu)) {
2418 BIO_printf(bio_err, "Failed to set MTU\n");
2419 ret = -1;
2420 BIO_free(sbio);
2421 goto err;
2422 }
2423 } else
2424 /* want to do MTU discovery */
2425 BIO_ctrl(sbio, BIO_CTRL_DGRAM_MTU_DISCOVER, 0, NULL);
2426
2427 # ifndef OPENSSL_NO_SCTP
2428 if (prot != IPPROTO_SCTP)
2429 # endif
2430 /* Turn on cookie exchange. Not necessary for SCTP */
2431 SSL_set_options(con, SSL_OP_COOKIE_EXCHANGE);
2432 } else
2433 #endif
2434 sbio = BIO_new_socket(s, BIO_NOCLOSE);
2435
2436 if (sbio == NULL) {
2437 BIO_printf(bio_err, "Unable to create BIO\n");
2438 ERR_print_errors(bio_err);
2439 goto err;
2440 }
2441
2442 if (s_nbio_test) {
2443 BIO *test;
2444
2445 test = BIO_new(BIO_f_nbio_test());
2446 if (test == NULL) {
2447 BIO_printf(bio_err, "Unable to create BIO\n");
2448 ret = -1;
2449 BIO_free(sbio);
2450 goto err;
2451 }
2452 sbio = BIO_push(test, sbio);
2453 }
2454
2455 SSL_set_bio(con, sbio, sbio);
2456 SSL_set_accept_state(con);
2457 /* SSL_set_fd(con,s); */
2458
2459 if (s_debug) {
2460 BIO_set_callback_ex(SSL_get_rbio(con), bio_dump_callback);
2461 BIO_set_callback_arg(SSL_get_rbio(con), (char *)bio_s_out);
2462 }
2463 if (s_msg) {
2464 #ifndef OPENSSL_NO_SSL_TRACE
2465 if (s_msg == 2)
2466 SSL_set_msg_callback(con, SSL_trace);
2467 else
2468 #endif
2469 SSL_set_msg_callback(con, msg_cb);
2470 SSL_set_msg_callback_arg(con, bio_s_msg ? bio_s_msg : bio_s_out);
2471 }
2472
2473 if (s_tlsextdebug) {
2474 SSL_set_tlsext_debug_callback(con, tlsext_cb);
2475 SSL_set_tlsext_debug_arg(con, bio_s_out);
2476 }
2477
2478 if (early_data) {
2479 int write_header = 1, edret = SSL_READ_EARLY_DATA_ERROR;
2480 size_t readbytes;
2481
2482 while (edret != SSL_READ_EARLY_DATA_FINISH) {
2483 for (;;) {
2484 edret = SSL_read_early_data(con, buf, bufsize, &readbytes);
2485 if (edret != SSL_READ_EARLY_DATA_ERROR)
2486 break;
2487
2488 switch (SSL_get_error(con, 0)) {
2489 case SSL_ERROR_WANT_WRITE:
2490 case SSL_ERROR_WANT_ASYNC:
2491 case SSL_ERROR_WANT_READ:
2492 /* Just keep trying - busy waiting */
2493 continue;
2494 default:
2495 BIO_printf(bio_err, "Error reading early data\n");
2496 ERR_print_errors(bio_err);
2497 goto err;
2498 }
2499 }
2500 if (readbytes > 0) {
2501 if (write_header) {
2502 BIO_printf(bio_s_out, "Early data received:\n");
2503 write_header = 0;
2504 }
2505 raw_write_stdout(buf, (unsigned int)readbytes);
2506 (void)BIO_flush(bio_s_out);
2507 }
2508 }
2509 if (write_header) {
2510 if (SSL_get_early_data_status(con) == SSL_EARLY_DATA_NOT_SENT)
2511 BIO_printf(bio_s_out, "No early data received\n");
2512 else
2513 BIO_printf(bio_s_out, "Early data was rejected\n");
2514 } else {
2515 BIO_printf(bio_s_out, "\nEnd of early data\n");
2516 }
2517 if (SSL_is_init_finished(con))
2518 print_connection_info(con);
2519 }
2520
2521 if (fileno_stdin() > s)
2522 width = fileno_stdin() + 1;
2523 else
2524 width = s + 1;
2525 for (;;) {
2526 int read_from_terminal;
2527 int read_from_sslcon;
2528
2529 read_from_terminal = 0;
2530 read_from_sslcon = SSL_has_pending(con)
2531 || (async && SSL_waiting_for_async(con));
2532
2533 if (!read_from_sslcon) {
2534 FD_ZERO(&readfds);
2535 #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS)
2536 openssl_fdset(fileno_stdin(), &readfds);
2537 #endif
2538 openssl_fdset(s, &readfds);
2539 /*
2540 * Note: under VMS with SOCKETSHR the second parameter is
2541 * currently of type (int *) whereas under other systems it is
2542 * (void *) if you don't have a cast it will choke the compiler:
2543 * if you do have a cast then you can either go for (int *) or
2544 * (void *).
2545 */
2546 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
2547 /*
2548 * Under DOS (non-djgpp) and Windows we can't select on stdin:
2549 * only on sockets. As a workaround we timeout the select every
2550 * second and check for any keypress. In a proper Windows
2551 * application we wouldn't do this because it is inefficient.
2552 */
2553 timeout.tv_sec = 1;
2554 timeout.tv_usec = 0;
2555 i = select(width, (void *)&readfds, NULL, NULL, &timeout);
2556 if (has_stdin_waiting())
2557 read_from_terminal = 1;
2558 if ((i < 0) || (!i && !read_from_terminal))
2559 continue;
2560 #else
2561 if (SSL_is_dtls(con) && DTLSv1_get_timeout(con, &timeout))
2562 timeoutp = &timeout;
2563 else
2564 timeoutp = NULL;
2565
2566 i = select(width, (void *)&readfds, NULL, NULL, timeoutp);
2567
2568 if ((SSL_is_dtls(con)) && DTLSv1_handle_timeout(con) > 0)
2569 BIO_printf(bio_err, "TIMEOUT occurred\n");
2570
2571 if (i <= 0)
2572 continue;
2573 if (FD_ISSET(fileno_stdin(), &readfds))
2574 read_from_terminal = 1;
2575 #endif
2576 if (FD_ISSET(s, &readfds))
2577 read_from_sslcon = 1;
2578 }
2579 if (read_from_terminal) {
2580 if (s_crlf) {
2581 int j, lf_num;
2582
2583 i = raw_read_stdin(buf, bufsize / 2);
2584 lf_num = 0;
2585 /* both loops are skipped when i <= 0 */
2586 for (j = 0; j < i; j++)
2587 if (buf[j] == '\n')
2588 lf_num++;
2589 for (j = i - 1; j >= 0; j--) {
2590 buf[j + lf_num] = buf[j];
2591 if (buf[j] == '\n') {
2592 lf_num--;
2593 i++;
2594 buf[j + lf_num] = '\r';
2595 }
2596 }
2597 assert(lf_num == 0);
2598 } else {
2599 i = raw_read_stdin(buf, bufsize);
2600 }
2601
2602 if (!s_quiet && !s_brief) {
2603 if ((i <= 0) || (buf[0] == 'Q')) {
2604 BIO_printf(bio_s_out, "DONE\n");
2605 (void)BIO_flush(bio_s_out);
2606 BIO_closesocket(s);
2607 close_accept_socket();
2608 ret = -11;
2609 goto err;
2610 }
2611 if ((i <= 0) || (buf[0] == 'q')) {
2612 BIO_printf(bio_s_out, "DONE\n");
2613 (void)BIO_flush(bio_s_out);
2614 if (SSL_version(con) != DTLS1_VERSION)
2615 BIO_closesocket(s);
2616 /*
2617 * close_accept_socket(); ret= -11;
2618 */
2619 goto err;
2620 }
2621 if ((buf[0] == 'r') && ((buf[1] == '\n') || (buf[1] == '\r'))) {
2622 SSL_renegotiate(con);
2623 i = SSL_do_handshake(con);
2624 printf("SSL_do_handshake -> %d\n", i);
2625 i = 0; /* 13; */
2626 continue;
2627 }
2628 if ((buf[0] == 'R') && ((buf[1] == '\n') || (buf[1] == '\r'))) {
2629 SSL_set_verify(con,
2630 SSL_VERIFY_PEER | SSL_VERIFY_CLIENT_ONCE,
2631 NULL);
2632 SSL_renegotiate(con);
2633 i = SSL_do_handshake(con);
2634 printf("SSL_do_handshake -> %d\n", i);
2635 i = 0; /* 13; */
2636 continue;
2637 }
2638 if ((buf[0] == 'K' || buf[0] == 'k')
2639 && ((buf[1] == '\n') || (buf[1] == '\r'))) {
2640 SSL_key_update(con, buf[0] == 'K' ?
2641 SSL_KEY_UPDATE_REQUESTED
2642 : SSL_KEY_UPDATE_NOT_REQUESTED);
2643 i = SSL_do_handshake(con);
2644 printf("SSL_do_handshake -> %d\n", i);
2645 i = 0;
2646 continue;
2647 }
2648 if (buf[0] == 'c' && ((buf[1] == '\n') || (buf[1] == '\r'))) {
2649 SSL_set_verify(con, SSL_VERIFY_PEER, NULL);
2650 i = SSL_verify_client_post_handshake(con);
2651 if (i == 0) {
2652 printf("Failed to initiate request\n");
2653 ERR_print_errors(bio_err);
2654 } else {
2655 i = SSL_do_handshake(con);
2656 printf("SSL_do_handshake -> %d\n", i);
2657 i = 0;
2658 }
2659 continue;
2660 }
2661 if (buf[0] == 'P') {
2662 static const char str[] = "Lets print some clear text\n";
2663 BIO_write(SSL_get_wbio(con), str, sizeof(str) -1);
2664 }
2665 if (buf[0] == 'S') {
2666 print_stats(bio_s_out, SSL_get_SSL_CTX(con));
2667 }
2668 }
2669 #ifdef CHARSET_EBCDIC
2670 ebcdic2ascii(buf, buf, i);
2671 #endif
2672 l = k = 0;
2673 for (;;) {
2674 /* should do a select for the write */
2675 #ifdef RENEG
2676 static count = 0;
2677 if (++count == 100) {
2678 count = 0;
2679 SSL_renegotiate(con);
2680 }
2681 #endif
2682 k = SSL_write(con, &(buf[l]), (unsigned int)i);
2683 #ifndef OPENSSL_NO_SRP
2684 while (SSL_get_error(con, k) == SSL_ERROR_WANT_X509_LOOKUP) {
2685 BIO_printf(bio_s_out, "LOOKUP renego during write\n");
2686
2687 lookup_srp_user(&srp_callback_parm, bio_s_out);
2688
2689 k = SSL_write(con, &(buf[l]), (unsigned int)i);
2690 }
2691 #endif
2692 switch (SSL_get_error(con, k)) {
2693 case SSL_ERROR_NONE:
2694 break;
2695 case SSL_ERROR_WANT_ASYNC:
2696 BIO_printf(bio_s_out, "Write BLOCK (Async)\n");
2697 (void)BIO_flush(bio_s_out);
2698 wait_for_async(con);
2699 break;
2700 case SSL_ERROR_WANT_WRITE:
2701 case SSL_ERROR_WANT_READ:
2702 case SSL_ERROR_WANT_X509_LOOKUP:
2703 BIO_printf(bio_s_out, "Write BLOCK\n");
2704 (void)BIO_flush(bio_s_out);
2705 break;
2706 case SSL_ERROR_WANT_ASYNC_JOB:
2707 /*
2708 * This shouldn't ever happen in s_server. Treat as an error
2709 */
2710 case SSL_ERROR_SYSCALL:
2711 case SSL_ERROR_SSL:
2712 BIO_printf(bio_s_out, "ERROR\n");
2713 (void)BIO_flush(bio_s_out);
2714 ERR_print_errors(bio_err);
2715 ret = 1;
2716 goto err;
2717 /* break; */
2718 case SSL_ERROR_ZERO_RETURN:
2719 BIO_printf(bio_s_out, "DONE\n");
2720 (void)BIO_flush(bio_s_out);
2721 ret = 1;
2722 goto err;
2723 }
2724 if (k > 0) {
2725 l += k;
2726 i -= k;
2727 }
2728 if (i <= 0)
2729 break;
2730 }
2731 }
2732 if (read_from_sslcon) {
2733 /*
2734 * init_ssl_connection handles all async events itself so if we're
2735 * waiting for async then we shouldn't go back into
2736 * init_ssl_connection
2737 */
2738 if ((!async || !SSL_waiting_for_async(con))
2739 && !SSL_is_init_finished(con)) {
2740 i = init_ssl_connection(con);
2741
2742 if (i < 0) {
2743 ret = 0;
2744 goto err;
2745 } else if (i == 0) {
2746 ret = 1;
2747 goto err;
2748 }
2749 } else {
2750 again:
2751 i = SSL_read(con, (char *)buf, bufsize);
2752 #ifndef OPENSSL_NO_SRP
2753 while (SSL_get_error(con, i) == SSL_ERROR_WANT_X509_LOOKUP) {
2754 BIO_printf(bio_s_out, "LOOKUP renego during read\n");
2755
2756 lookup_srp_user(&srp_callback_parm, bio_s_out);
2757
2758 i = SSL_read(con, (char *)buf, bufsize);
2759 }
2760 #endif
2761 switch (SSL_get_error(con, i)) {
2762 case SSL_ERROR_NONE:
2763 #ifdef CHARSET_EBCDIC
2764 ascii2ebcdic(buf, buf, i);
2765 #endif
2766 raw_write_stdout(buf, (unsigned int)i);
2767 (void)BIO_flush(bio_s_out);
2768 if (SSL_has_pending(con))
2769 goto again;
2770 break;
2771 case SSL_ERROR_WANT_ASYNC:
2772 BIO_printf(bio_s_out, "Read BLOCK (Async)\n");
2773 (void)BIO_flush(bio_s_out);
2774 wait_for_async(con);
2775 break;
2776 case SSL_ERROR_WANT_WRITE:
2777 case SSL_ERROR_WANT_READ:
2778 BIO_printf(bio_s_out, "Read BLOCK\n");
2779 (void)BIO_flush(bio_s_out);
2780 break;
2781 case SSL_ERROR_WANT_ASYNC_JOB:
2782 /*
2783 * This shouldn't ever happen in s_server. Treat as an error
2784 */
2785 case SSL_ERROR_SYSCALL:
2786 case SSL_ERROR_SSL:
2787 BIO_printf(bio_s_out, "ERROR\n");
2788 (void)BIO_flush(bio_s_out);
2789 ERR_print_errors(bio_err);
2790 ret = 1;
2791 goto err;
2792 case SSL_ERROR_ZERO_RETURN:
2793 BIO_printf(bio_s_out, "DONE\n");
2794 (void)BIO_flush(bio_s_out);
2795 ret = 1;
2796 goto err;
2797 }
2798 }
2799 }
2800 }
2801 err:
2802 if (con != NULL) {
2803 BIO_printf(bio_s_out, "shutting down SSL\n");
2804 do_ssl_shutdown(con);
2805 SSL_free(con);
2806 }
2807 BIO_printf(bio_s_out, "CONNECTION CLOSED\n");
2808 OPENSSL_clear_free(buf, bufsize);
2809 return ret;
2810 }
2811
2812 static void close_accept_socket(void)
2813 {
2814 BIO_printf(bio_err, "shutdown accept socket\n");
2815 if (accept_socket >= 0) {
2816 BIO_closesocket(accept_socket);
2817 }
2818 }
2819
2820 static int is_retryable(SSL *con, int i)
2821 {
2822 int err = SSL_get_error(con, i);
2823
2824 /* If it's not a fatal error, it must be retryable */
2825 return (err != SSL_ERROR_SSL)
2826 && (err != SSL_ERROR_SYSCALL)
2827 && (err != SSL_ERROR_ZERO_RETURN);
2828 }
2829
2830 static int init_ssl_connection(SSL *con)
2831 {
2832 int i;
2833 long verify_err;
2834 int retry = 0;
2835
2836 if (dtlslisten || stateless) {
2837 BIO_ADDR *client = NULL;
2838
2839 if (dtlslisten) {
2840 if ((client = BIO_ADDR_new()) == NULL) {
2841 BIO_printf(bio_err, "ERROR - memory\n");
2842 return 0;
2843 }
2844 i = DTLSv1_listen(con, client);
2845 } else {
2846 i = SSL_stateless(con);
2847 }
2848 if (i > 0) {
2849 BIO *wbio;
2850 int fd = -1;
2851
2852 if (dtlslisten) {
2853 wbio = SSL_get_wbio(con);
2854 if (wbio) {
2855 BIO_get_fd(wbio, &fd);
2856 }
2857
2858 if (!wbio || BIO_connect(fd, client, 0) == 0) {
2859 BIO_printf(bio_err, "ERROR - unable to connect\n");
2860 BIO_ADDR_free(client);
2861 return 0;
2862 }
2863
2864 (void)BIO_ctrl_set_connected(wbio, client);
2865 BIO_ADDR_free(client);
2866 dtlslisten = 0;
2867 } else {
2868 stateless = 0;
2869 }
2870 i = SSL_accept(con);
2871 } else {
2872 BIO_ADDR_free(client);
2873 }
2874 } else {
2875 do {
2876 i = SSL_accept(con);
2877
2878 if (i <= 0)
2879 retry = is_retryable(con, i);
2880 #ifdef CERT_CB_TEST_RETRY
2881 {
2882 while (i <= 0
2883 && SSL_get_error(con, i) == SSL_ERROR_WANT_X509_LOOKUP
2884 && SSL_get_state(con) == TLS_ST_SR_CLNT_HELLO) {
2885 BIO_printf(bio_err,
2886 "LOOKUP from certificate callback during accept\n");
2887 i = SSL_accept(con);
2888 if (i <= 0)
2889 retry = is_retryable(con, i);
2890 }
2891 }
2892 #endif
2893
2894 #ifndef OPENSSL_NO_SRP
2895 while (i <= 0
2896 && SSL_get_error(con, i) == SSL_ERROR_WANT_X509_LOOKUP) {
2897 BIO_printf(bio_s_out, "LOOKUP during accept %s\n",
2898 srp_callback_parm.login);
2899
2900 lookup_srp_user(&srp_callback_parm, bio_s_out);
2901
2902 i = SSL_accept(con);
2903 if (i <= 0)
2904 retry = is_retryable(con, i);
2905 }
2906 #endif
2907 } while (i < 0 && SSL_waiting_for_async(con));
2908 }
2909
2910 if (i <= 0) {
2911 if (((dtlslisten || stateless) && i == 0)
2912 || (!dtlslisten && !stateless && retry)) {
2913 BIO_printf(bio_s_out, "DELAY\n");
2914 return 1;
2915 }
2916
2917 BIO_printf(bio_err, "ERROR\n");
2918
2919 verify_err = SSL_get_verify_result(con);
2920 if (verify_err != X509_V_OK) {
2921 BIO_printf(bio_err, "verify error:%s\n",
2922 X509_verify_cert_error_string(verify_err));
2923 }
2924 /* Always print any error messages */
2925 ERR_print_errors(bio_err);
2926 return 0;
2927 }
2928
2929 print_connection_info(con);
2930 return 1;
2931 }
2932
2933 static void print_connection_info(SSL *con)
2934 {
2935 const char *str;
2936 X509 *peer;
2937 char buf[BUFSIZ];
2938 #if !defined(OPENSSL_NO_NEXTPROTONEG)
2939 const unsigned char *next_proto_neg;
2940 unsigned next_proto_neg_len;
2941 #endif
2942 unsigned char *exportedkeymat;
2943 int i;
2944
2945 if (s_brief)
2946 print_ssl_summary(con);
2947
2948 PEM_write_bio_SSL_SESSION(bio_s_out, SSL_get_session(con));
2949
2950 peer = SSL_get0_peer_certificate(con);
2951 if (peer != NULL) {
2952 BIO_printf(bio_s_out, "Client certificate\n");
2953 PEM_write_bio_X509(bio_s_out, peer);
2954 dump_cert_text(bio_s_out, peer);
2955 peer = NULL;
2956 }
2957
2958 if (SSL_get_shared_ciphers(con, buf, sizeof(buf)) != NULL)
2959 BIO_printf(bio_s_out, "Shared ciphers:%s\n", buf);
2960 str = SSL_CIPHER_get_name(SSL_get_current_cipher(con));
2961 ssl_print_sigalgs(bio_s_out, con);
2962 #ifndef OPENSSL_NO_EC
2963 ssl_print_point_formats(bio_s_out, con);
2964 ssl_print_groups(bio_s_out, con, 0);
2965 #endif
2966 print_ca_names(bio_s_out, con);
2967 BIO_printf(bio_s_out, "CIPHER is %s\n", (str != NULL) ? str : "(NONE)");
2968
2969 #if !defined(OPENSSL_NO_NEXTPROTONEG)
2970 SSL_get0_next_proto_negotiated(con, &next_proto_neg, &next_proto_neg_len);
2971 if (next_proto_neg) {
2972 BIO_printf(bio_s_out, "NEXTPROTO is ");
2973 BIO_write(bio_s_out, next_proto_neg, next_proto_neg_len);
2974 BIO_printf(bio_s_out, "\n");
2975 }
2976 #endif
2977 #ifndef OPENSSL_NO_SRTP
2978 {
2979 SRTP_PROTECTION_PROFILE *srtp_profile
2980 = SSL_get_selected_srtp_profile(con);
2981
2982 if (srtp_profile)
2983 BIO_printf(bio_s_out, "SRTP Extension negotiated, profile=%s\n",
2984 srtp_profile->name);
2985 }
2986 #endif
2987 if (SSL_session_reused(con))
2988 BIO_printf(bio_s_out, "Reused session-id\n");
2989
2990 ssl_print_secure_renegotiation_notes(bio_s_out, con);
2991
2992 if ((SSL_get_options(con) & SSL_OP_NO_RENEGOTIATION))
2993 BIO_printf(bio_s_out, "Renegotiation is DISABLED\n");
2994
2995 if (keymatexportlabel != NULL) {
2996 BIO_printf(bio_s_out, "Keying material exporter:\n");
2997 BIO_printf(bio_s_out, " Label: '%s'\n", keymatexportlabel);
2998 BIO_printf(bio_s_out, " Length: %i bytes\n", keymatexportlen);
2999 exportedkeymat = app_malloc(keymatexportlen, "export key");
3000 if (SSL_export_keying_material(con, exportedkeymat,
3001 keymatexportlen,
3002 keymatexportlabel,
3003 strlen(keymatexportlabel),
3004 NULL, 0, 0) <= 0) {
3005 BIO_printf(bio_s_out, " Error\n");
3006 } else {
3007 BIO_printf(bio_s_out, " Keying material: ");
3008 for (i = 0; i < keymatexportlen; i++)
3009 BIO_printf(bio_s_out, "%02X", exportedkeymat[i]);
3010 BIO_printf(bio_s_out, "\n");
3011 }
3012 OPENSSL_free(exportedkeymat);
3013 }
3014 #ifndef OPENSSL_NO_KTLS
3015 if (BIO_get_ktls_send(SSL_get_wbio(con)))
3016 BIO_printf(bio_err, "Using Kernel TLS for sending\n");
3017 if (BIO_get_ktls_recv(SSL_get_rbio(con)))
3018 BIO_printf(bio_err, "Using Kernel TLS for receiving\n");
3019 #endif
3020
3021 (void)BIO_flush(bio_s_out);
3022 }
3023
3024 static int www_body(int s, int stype, int prot, unsigned char *context)
3025 {
3026 char *buf = NULL, *p;
3027 int ret = 1;
3028 int i, j, k, dot;
3029 SSL *con;
3030 const SSL_CIPHER *c;
3031 BIO *io, *ssl_bio, *sbio;
3032 #ifdef RENEG
3033 int total_bytes = 0;
3034 #endif
3035 int width;
3036 #ifndef OPENSSL_NO_KTLS
3037 int use_sendfile_for_req = use_sendfile;
3038 #endif
3039 fd_set readfds;
3040 const char *opmode;
3041 #ifdef CHARSET_EBCDIC
3042 BIO *filter;
3043 #endif
3044
3045 /* Set width for a select call if needed */
3046 width = s + 1;
3047
3048 /* as we use BIO_gets(), and it always null terminates data, we need
3049 * to allocate 1 byte longer buffer to fit the full 2^14 byte record */
3050 p = buf = app_malloc(bufsize + 1, "server www buffer");
3051 io = BIO_new(BIO_f_buffer());
3052 ssl_bio = BIO_new(BIO_f_ssl());
3053 if ((io == NULL) || (ssl_bio == NULL))
3054 goto err;
3055
3056 if (s_nbio) {
3057 if (!BIO_socket_nbio(s, 1))
3058 ERR_print_errors(bio_err);
3059 else if (!s_quiet)
3060 BIO_printf(bio_err, "Turned on non blocking io\n");
3061 }
3062
3063 /* lets make the output buffer a reasonable size */
3064 if (!BIO_set_write_buffer_size(io, bufsize))
3065 goto err;
3066
3067 if ((con = SSL_new(ctx)) == NULL)
3068 goto err;
3069
3070 if (s_tlsextdebug) {
3071 SSL_set_tlsext_debug_callback(con, tlsext_cb);
3072 SSL_set_tlsext_debug_arg(con, bio_s_out);
3073 }
3074
3075 if (context != NULL
3076 && !SSL_set_session_id_context(con, context,
3077 strlen((char *)context))) {
3078 SSL_free(con);
3079 goto err;
3080 }
3081
3082 sbio = BIO_new_socket(s, BIO_NOCLOSE);
3083 if (sbio == NULL) {
3084 SSL_free(con);
3085 goto err;
3086 }
3087
3088 if (s_nbio_test) {
3089 BIO *test;
3090
3091 test = BIO_new(BIO_f_nbio_test());
3092 if (test == NULL) {
3093 SSL_free(con);
3094 BIO_free(sbio);
3095 goto err;
3096 }
3097
3098 sbio = BIO_push(test, sbio);
3099 }
3100 SSL_set_bio(con, sbio, sbio);
3101 SSL_set_accept_state(con);
3102
3103 /* No need to free |con| after this. Done by BIO_free(ssl_bio) */
3104 BIO_set_ssl(ssl_bio, con, BIO_CLOSE);
3105 BIO_push(io, ssl_bio);
3106 ssl_bio = NULL;
3107 #ifdef CHARSET_EBCDIC
3108 filter = BIO_new(BIO_f_ebcdic_filter());
3109 if (filter == NULL)
3110 goto err;
3111
3112 io = BIO_push(filter, io);
3113 #endif
3114
3115 if (s_debug) {
3116 BIO_set_callback_ex(SSL_get_rbio(con), bio_dump_callback);
3117 BIO_set_callback_arg(SSL_get_rbio(con), (char *)bio_s_out);
3118 }
3119 if (s_msg) {
3120 #ifndef OPENSSL_NO_SSL_TRACE
3121 if (s_msg == 2)
3122 SSL_set_msg_callback(con, SSL_trace);
3123 else
3124 #endif
3125 SSL_set_msg_callback(con, msg_cb);
3126 SSL_set_msg_callback_arg(con, bio_s_msg ? bio_s_msg : bio_s_out);
3127 }
3128
3129 for (;;) {
3130 i = BIO_gets(io, buf, bufsize + 1);
3131 if (i < 0) { /* error */
3132 if (!BIO_should_retry(io) && !SSL_waiting_for_async(con)) {
3133 if (!s_quiet)
3134 ERR_print_errors(bio_err);
3135 goto err;
3136 } else {
3137 BIO_printf(bio_s_out, "read R BLOCK\n");
3138 #ifndef OPENSSL_NO_SRP
3139 if (BIO_should_io_special(io)
3140 && BIO_get_retry_reason(io) == BIO_RR_SSL_X509_LOOKUP) {
3141 BIO_printf(bio_s_out, "LOOKUP renego during read\n");
3142
3143 lookup_srp_user(&srp_callback_parm, bio_s_out);
3144
3145 continue;
3146 }
3147 #endif
3148 ossl_sleep(1000);
3149 continue;
3150 }
3151 } else if (i == 0) { /* end of input */
3152 ret = 1;
3153 goto end;
3154 }
3155
3156 /* else we have data */
3157 if ((www == 1 && HAS_PREFIX(buf, "GET "))
3158 || (www == 2 && HAS_PREFIX(buf, "GET /stats "))) {
3159 X509 *peer = NULL;
3160 STACK_OF(SSL_CIPHER) *sk;
3161 static const char *space = " ";
3162
3163 if (www == 1 && HAS_PREFIX(buf, "GET /reneg")) {
3164 if (HAS_PREFIX(buf, "GET /renegcert"))
3165 SSL_set_verify(con,
3166 SSL_VERIFY_PEER | SSL_VERIFY_CLIENT_ONCE,
3167 NULL);
3168 i = SSL_renegotiate(con);
3169 BIO_printf(bio_s_out, "SSL_renegotiate -> %d\n", i);
3170 /* Send the HelloRequest */
3171 i = SSL_do_handshake(con);
3172 if (i <= 0) {
3173 BIO_printf(bio_s_out, "SSL_do_handshake() Retval %d\n",
3174 SSL_get_error(con, i));
3175 ERR_print_errors(bio_err);
3176 goto err;
3177 }
3178 /* Wait for a ClientHello to come back */
3179 FD_ZERO(&readfds);
3180 openssl_fdset(s, &readfds);
3181 i = select(width, (void *)&readfds, NULL, NULL, NULL);
3182 if (i <= 0 || !FD_ISSET(s, &readfds)) {
3183 BIO_printf(bio_s_out,
3184 "Error waiting for client response\n");
3185 ERR_print_errors(bio_err);
3186 goto err;
3187 }
3188 /*
3189 * We're not actually expecting any data here and we ignore
3190 * any that is sent. This is just to force the handshake that
3191 * we're expecting to come from the client. If they haven't
3192 * sent one there's not much we can do.
3193 */
3194 BIO_gets(io, buf, bufsize + 1);
3195 }
3196
3197 BIO_puts(io,
3198 "HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n");
3199 BIO_puts(io, "<HTML><BODY BGCOLOR=\"#ffffff\">\n");
3200 BIO_puts(io, "<pre>\n");
3201 /* BIO_puts(io, OpenSSL_version(OPENSSL_VERSION)); */
3202 BIO_puts(io, "\n");
3203 for (i = 0; i < local_argc; i++) {
3204 const char *myp;
3205
3206 for (myp = local_argv[i]; *myp; myp++)
3207 switch (*myp) {
3208 case '<':
3209 BIO_puts(io, "&lt;");
3210 break;
3211 case '>':
3212 BIO_puts(io, "&gt;");
3213 break;
3214 case '&':
3215 BIO_puts(io, "&amp;");
3216 break;
3217 default:
3218 BIO_write(io, myp, 1);
3219 break;
3220 }
3221 BIO_write(io, " ", 1);
3222 }
3223 BIO_puts(io, "\n");
3224
3225 ssl_print_secure_renegotiation_notes(io, con);
3226
3227 /*
3228 * The following is evil and should not really be done
3229 */
3230 BIO_printf(io, "Ciphers supported in s_server binary\n");
3231 sk = SSL_get_ciphers(con);
3232 j = sk_SSL_CIPHER_num(sk);
3233 for (i = 0; i < j; i++) {
3234 c = sk_SSL_CIPHER_value(sk, i);
3235 BIO_printf(io, "%-11s:%-25s ",
3236 SSL_CIPHER_get_version(c), SSL_CIPHER_get_name(c));
3237 if ((((i + 1) % 2) == 0) && (i + 1 != j))
3238 BIO_puts(io, "\n");
3239 }
3240 BIO_puts(io, "\n");
3241 p = SSL_get_shared_ciphers(con, buf, bufsize);
3242 if (p != NULL) {
3243 BIO_printf(io,
3244 "---\nCiphers common between both SSL end points:\n");
3245 j = i = 0;
3246 while (*p) {
3247 if (*p == ':') {
3248 BIO_write(io, space, 26 - j);
3249 i++;
3250 j = 0;
3251 BIO_write(io, ((i % 3) ? " " : "\n"), 1);
3252 } else {
3253 BIO_write(io, p, 1);
3254 j++;
3255 }
3256 p++;
3257 }
3258 BIO_puts(io, "\n");
3259 }
3260 ssl_print_sigalgs(io, con);
3261 #ifndef OPENSSL_NO_EC
3262 ssl_print_groups(io, con, 0);
3263 #endif
3264 print_ca_names(io, con);
3265 BIO_printf(io, (SSL_session_reused(con)
3266 ? "---\nReused, " : "---\nNew, "));
3267 c = SSL_get_current_cipher(con);
3268 BIO_printf(io, "%s, Cipher is %s\n",
3269 SSL_CIPHER_get_version(c), SSL_CIPHER_get_name(c));
3270 SSL_SESSION_print(io, SSL_get_session(con));
3271 BIO_printf(io, "---\n");
3272 print_stats(io, SSL_get_SSL_CTX(con));
3273 BIO_printf(io, "---\n");
3274 peer = SSL_get0_peer_certificate(con);
3275 if (peer != NULL) {
3276 BIO_printf(io, "Client certificate\n");
3277 X509_print(io, peer);
3278 PEM_write_bio_X509(io, peer);
3279 peer = NULL;
3280 } else {
3281 BIO_puts(io, "no client certificate available\n");
3282 }
3283 BIO_puts(io, "</pre></BODY></HTML>\r\n\r\n");
3284 break;
3285 } else if ((www == 2 || www == 3) && CHECK_AND_SKIP_PREFIX(p, "GET /")) {
3286 BIO *file;
3287 char *e;
3288 static const char *text =
3289 "HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n";
3290
3291 dot = 1;
3292 for (e = p; *e != '\0'; e++) {
3293 if (e[0] == ' ')
3294 break;
3295
3296 if (e[0] == ':') {
3297 /* Windows drive. We treat this the same way as ".." */
3298 dot = -1;
3299 break;
3300 }
3301
3302 switch (dot) {
3303 case 1:
3304 dot = (e[0] == '.') ? 2 : 0;
3305 break;
3306 case 2:
3307 dot = (e[0] == '.') ? 3 : 0;
3308 break;
3309 case 3:
3310 dot = (e[0] == '/' || e[0] == '\\') ? -1 : 0;
3311 break;
3312 }
3313 if (dot == 0)
3314 dot = (e[0] == '/' || e[0] == '\\') ? 1 : 0;
3315 }
3316 dot = (dot == 3) || (dot == -1); /* filename contains ".."
3317 * component */
3318
3319 if (*e == '\0') {
3320 BIO_puts(io, text);
3321 BIO_printf(io, "'%s' is an invalid file name\r\n", p);
3322 break;
3323 }
3324 *e = '\0';
3325
3326 if (dot) {
3327 BIO_puts(io, text);
3328 BIO_printf(io, "'%s' contains '..' or ':'\r\n", p);
3329 break;
3330 }
3331
3332 if (*p == '/' || *p == '\\') {
3333 BIO_puts(io, text);
3334 BIO_printf(io, "'%s' is an invalid path\r\n", p);
3335 break;
3336 }
3337
3338 /* if a directory, do the index thang */
3339 if (app_isdir(p) > 0) {
3340 BIO_puts(io, text);
3341 BIO_printf(io, "'%s' is a directory\r\n", p);
3342 break;
3343 }
3344
3345 opmode = (http_server_binmode == 1) ? "rb" : "r";
3346 if ((file = BIO_new_file(p, opmode)) == NULL) {
3347 BIO_puts(io, text);
3348 BIO_printf(io, "Error opening '%s' mode='%s'\r\n", p, opmode);
3349 ERR_print_errors(io);
3350 break;
3351 }
3352
3353 if (!s_quiet)
3354 BIO_printf(bio_err, "FILE:%s\n", p);
3355
3356 if (www == 2) {
3357 i = strlen(p);
3358 if (((i > 5) && (strcmp(&(p[i - 5]), ".html") == 0)) ||
3359 ((i > 4) && (strcmp(&(p[i - 4]), ".php") == 0)) ||
3360 ((i > 4) && (strcmp(&(p[i - 4]), ".htm") == 0)))
3361 BIO_puts(io,
3362 "HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n");
3363 else
3364 BIO_puts(io,
3365 "HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n");
3366 }
3367 /* send the file */
3368 #ifndef OPENSSL_NO_KTLS
3369 if (use_sendfile_for_req && !BIO_get_ktls_send(SSL_get_wbio(con))) {
3370 BIO_printf(bio_err, "Warning: sendfile requested but KTLS is not available\n");
3371 use_sendfile_for_req = 0;
3372 }
3373 if (use_sendfile_for_req) {
3374 FILE *fp = NULL;
3375 int fd;
3376 struct stat st;
3377 off_t offset = 0;
3378 size_t filesize;
3379
3380 BIO_get_fp(file, &fp);
3381 fd = fileno(fp);
3382 if (fstat(fd, &st) < 0) {
3383 BIO_printf(io, "Error fstat '%s'\r\n", p);
3384 ERR_print_errors(io);
3385 goto write_error;
3386 }
3387
3388 filesize = st.st_size;
3389 if (((int)BIO_flush(io)) < 0)
3390 goto write_error;
3391
3392 for (;;) {
3393 i = SSL_sendfile(con, fd, offset, filesize, 0);
3394 if (i < 0) {
3395 BIO_printf(io, "Error SSL_sendfile '%s'\r\n", p);
3396 ERR_print_errors(io);
3397 break;
3398 } else {
3399 offset += i;
3400 filesize -= i;
3401 }
3402
3403 if (filesize <= 0) {
3404 if (!s_quiet)
3405 BIO_printf(bio_err, "KTLS SENDFILE '%s' OK\n", p);
3406
3407 break;
3408 }
3409 }
3410 } else
3411 #endif
3412 {
3413 for (;;) {
3414 i = BIO_read(file, buf, bufsize);
3415 if (i <= 0)
3416 break;
3417
3418 #ifdef RENEG
3419 total_bytes += i;
3420 BIO_printf(bio_err, "%d\n", i);
3421 if (total_bytes > 3 * 1024) {
3422 total_bytes = 0;
3423 BIO_printf(bio_err, "RENEGOTIATE\n");
3424 SSL_renegotiate(con);
3425 }
3426 #endif
3427
3428 for (j = 0; j < i;) {
3429 #ifdef RENEG
3430 static count = 0;
3431 if (++count == 13)
3432 SSL_renegotiate(con);
3433 #endif
3434 k = BIO_write(io, &(buf[j]), i - j);
3435 if (k <= 0) {
3436 if (!BIO_should_retry(io)
3437 && !SSL_waiting_for_async(con)) {
3438 goto write_error;
3439 } else {
3440 BIO_printf(bio_s_out, "rwrite W BLOCK\n");
3441 }
3442 } else {
3443 j += k;
3444 }
3445 }
3446 }
3447 }
3448 write_error:
3449 BIO_free(file);
3450 break;
3451 }
3452 }
3453
3454 for (;;) {
3455 i = (int)BIO_flush(io);
3456 if (i <= 0) {
3457 if (!BIO_should_retry(io))
3458 break;
3459 } else
3460 break;
3461 }
3462 end:
3463 /* make sure we re-use sessions */
3464 do_ssl_shutdown(con);
3465
3466 err:
3467 OPENSSL_free(buf);
3468 BIO_free(ssl_bio);
3469 BIO_free_all(io);
3470 return ret;
3471 }
3472
3473 static int rev_body(int s, int stype, int prot, unsigned char *context)
3474 {
3475 char *buf = NULL;
3476 int i;
3477 int ret = 1;
3478 SSL *con;
3479 BIO *io, *ssl_bio, *sbio;
3480 #ifdef CHARSET_EBCDIC
3481 BIO *filter;
3482 #endif
3483
3484 /* as we use BIO_gets(), and it always null terminates data, we need
3485 * to allocate 1 byte longer buffer to fit the full 2^14 byte record */
3486 buf = app_malloc(bufsize + 1, "server rev buffer");
3487 io = BIO_new(BIO_f_buffer());
3488 ssl_bio = BIO_new(BIO_f_ssl());
3489 if ((io == NULL) || (ssl_bio == NULL))
3490 goto err;
3491
3492 /* lets make the output buffer a reasonable size */
3493 if (!BIO_set_write_buffer_size(io, bufsize))
3494 goto err;
3495
3496 if ((con = SSL_new(ctx)) == NULL)
3497 goto err;
3498
3499 if (s_tlsextdebug) {
3500 SSL_set_tlsext_debug_callback(con, tlsext_cb);
3501 SSL_set_tlsext_debug_arg(con, bio_s_out);
3502 }
3503 if (context != NULL
3504 && !SSL_set_session_id_context(con, context,
3505 strlen((char *)context))) {
3506 SSL_free(con);
3507 ERR_print_errors(bio_err);
3508 goto err;
3509 }
3510
3511 sbio = BIO_new_socket(s, BIO_NOCLOSE);
3512 if (sbio == NULL) {
3513 SSL_free(con);
3514 ERR_print_errors(bio_err);
3515 goto err;
3516 }
3517
3518 SSL_set_bio(con, sbio, sbio);
3519 SSL_set_accept_state(con);
3520
3521 /* No need to free |con| after this. Done by BIO_free(ssl_bio) */
3522 BIO_set_ssl(ssl_bio, con, BIO_CLOSE);
3523 BIO_push(io, ssl_bio);
3524 ssl_bio = NULL;
3525 #ifdef CHARSET_EBCDIC
3526 filter = BIO_new(BIO_f_ebcdic_filter());
3527 if (filter == NULL)
3528 goto err;
3529
3530 io = BIO_push(filter, io);
3531 #endif
3532
3533 if (s_debug) {
3534 BIO_set_callback_ex(SSL_get_rbio(con), bio_dump_callback);
3535 BIO_set_callback_arg(SSL_get_rbio(con), (char *)bio_s_out);
3536 }
3537 if (s_msg) {
3538 #ifndef OPENSSL_NO_SSL_TRACE
3539 if (s_msg == 2)
3540 SSL_set_msg_callback(con, SSL_trace);
3541 else
3542 #endif
3543 SSL_set_msg_callback(con, msg_cb);
3544 SSL_set_msg_callback_arg(con, bio_s_msg ? bio_s_msg : bio_s_out);
3545 }
3546
3547 for (;;) {
3548 i = BIO_do_handshake(io);
3549 if (i > 0)
3550 break;
3551 if (!BIO_should_retry(io)) {
3552 BIO_puts(bio_err, "CONNECTION FAILURE\n");
3553 ERR_print_errors(bio_err);
3554 goto end;
3555 }
3556 #ifndef OPENSSL_NO_SRP
3557 if (BIO_should_io_special(io)
3558 && BIO_get_retry_reason(io) == BIO_RR_SSL_X509_LOOKUP) {
3559 BIO_printf(bio_s_out, "LOOKUP renego during accept\n");
3560
3561 lookup_srp_user(&srp_callback_parm, bio_s_out);
3562
3563 continue;
3564 }
3565 #endif
3566 }
3567 BIO_printf(bio_err, "CONNECTION ESTABLISHED\n");
3568 print_ssl_summary(con);
3569
3570 for (;;) {
3571 i = BIO_gets(io, buf, bufsize + 1);
3572 if (i < 0) { /* error */
3573 if (!BIO_should_retry(io)) {
3574 if (!s_quiet)
3575 ERR_print_errors(bio_err);
3576 goto err;
3577 } else {
3578 BIO_printf(bio_s_out, "read R BLOCK\n");
3579 #ifndef OPENSSL_NO_SRP
3580 if (BIO_should_io_special(io)
3581 && BIO_get_retry_reason(io) == BIO_RR_SSL_X509_LOOKUP) {
3582 BIO_printf(bio_s_out, "LOOKUP renego during read\n");
3583
3584 lookup_srp_user(&srp_callback_parm, bio_s_out);
3585
3586 continue;
3587 }
3588 #endif
3589 ossl_sleep(1000);
3590 continue;
3591 }
3592 } else if (i == 0) { /* end of input */
3593 ret = 1;
3594 BIO_printf(bio_err, "CONNECTION CLOSED\n");
3595 goto end;
3596 } else {
3597 char *p = buf + i - 1;
3598 while (i && (*p == '\n' || *p == '\r')) {
3599 p--;
3600 i--;
3601 }
3602 if (!s_ign_eof && i == 5 && HAS_PREFIX(buf, "CLOSE")) {
3603 ret = 1;
3604 BIO_printf(bio_err, "CONNECTION CLOSED\n");
3605 goto end;
3606 }
3607 BUF_reverse((unsigned char *)buf, NULL, i);
3608 buf[i] = '\n';
3609 BIO_write(io, buf, i + 1);
3610 for (;;) {
3611 i = BIO_flush(io);
3612 if (i > 0)
3613 break;
3614 if (!BIO_should_retry(io))
3615 goto end;
3616 }
3617 }
3618 }
3619 end:
3620 /* make sure we re-use sessions */
3621 do_ssl_shutdown(con);
3622
3623 err:
3624
3625 OPENSSL_free(buf);
3626 BIO_free(ssl_bio);
3627 BIO_free_all(io);
3628 return ret;
3629 }
3630
3631 #define MAX_SESSION_ID_ATTEMPTS 10
3632 static int generate_session_id(SSL *ssl, unsigned char *id,
3633 unsigned int *id_len)
3634 {
3635 unsigned int count = 0;
3636 unsigned int session_id_prefix_len = strlen(session_id_prefix);
3637
3638 do {
3639 if (RAND_bytes(id, *id_len) <= 0)
3640 return 0;
3641 /*
3642 * Prefix the session_id with the required prefix. NB: If our prefix
3643 * is too long, clip it - but there will be worse effects anyway, eg.
3644 * the server could only possibly create 1 session ID (ie. the
3645 * prefix!) so all future session negotiations will fail due to
3646 * conflicts.
3647 */
3648 memcpy(id, session_id_prefix,
3649 (session_id_prefix_len < *id_len) ?
3650 session_id_prefix_len : *id_len);
3651 }
3652 while (SSL_has_matching_session_id(ssl, id, *id_len) &&
3653 (++count < MAX_SESSION_ID_ATTEMPTS));
3654 if (count >= MAX_SESSION_ID_ATTEMPTS)
3655 return 0;
3656 return 1;
3657 }
3658
3659 /*
3660 * By default s_server uses an in-memory cache which caches SSL_SESSION
3661 * structures without any serialization. This hides some bugs which only
3662 * become apparent in deployed servers. By implementing a basic external
3663 * session cache some issues can be debugged using s_server.
3664 */
3665
3666 typedef struct simple_ssl_session_st {
3667 unsigned char *id;
3668 unsigned int idlen;
3669 unsigned char *der;
3670 int derlen;
3671 struct simple_ssl_session_st *next;
3672 } simple_ssl_session;
3673
3674 static simple_ssl_session *first = NULL;
3675
3676 static int add_session(SSL *ssl, SSL_SESSION *session)
3677 {
3678 simple_ssl_session *sess = app_malloc(sizeof(*sess), "get session");
3679 unsigned char *p;
3680
3681 SSL_SESSION_get_id(session, &sess->idlen);
3682 sess->derlen = i2d_SSL_SESSION(session, NULL);
3683 if (sess->derlen < 0) {
3684 BIO_printf(bio_err, "Error encoding session\n");
3685 OPENSSL_free(sess);
3686 return 0;
3687 }
3688
3689 sess->id = OPENSSL_memdup(SSL_SESSION_get_id(session, NULL), sess->idlen);
3690 sess->der = app_malloc(sess->derlen, "get session buffer");
3691 if (!sess->id) {
3692 BIO_printf(bio_err, "Out of memory adding to external cache\n");
3693 OPENSSL_free(sess->id);
3694 OPENSSL_free(sess->der);
3695 OPENSSL_free(sess);
3696 return 0;
3697 }
3698 p = sess->der;
3699
3700 /* Assume it still works. */
3701 if (i2d_SSL_SESSION(session, &p) != sess->derlen) {
3702 BIO_printf(bio_err, "Unexpected session encoding length\n");
3703 OPENSSL_free(sess->id);
3704 OPENSSL_free(sess->der);
3705 OPENSSL_free(sess);
3706 return 0;
3707 }
3708
3709 sess->next = first;
3710 first = sess;
3711 BIO_printf(bio_err, "New session added to external cache\n");
3712 return 0;
3713 }
3714
3715 static SSL_SESSION *get_session(SSL *ssl, const unsigned char *id, int idlen,
3716 int *do_copy)
3717 {
3718 simple_ssl_session *sess;
3719 *do_copy = 0;
3720 for (sess = first; sess; sess = sess->next) {
3721 if (idlen == (int)sess->idlen && !memcmp(sess->id, id, idlen)) {
3722 const unsigned char *p = sess->der;
3723 BIO_printf(bio_err, "Lookup session: cache hit\n");
3724 return d2i_SSL_SESSION(NULL, &p, sess->derlen);
3725 }
3726 }
3727 BIO_printf(bio_err, "Lookup session: cache miss\n");
3728 return NULL;
3729 }
3730
3731 static void del_session(SSL_CTX *sctx, SSL_SESSION *session)
3732 {
3733 simple_ssl_session *sess, *prev = NULL;
3734 const unsigned char *id;
3735 unsigned int idlen;
3736 id = SSL_SESSION_get_id(session, &idlen);
3737 for (sess = first; sess; sess = sess->next) {
3738 if (idlen == sess->idlen && !memcmp(sess->id, id, idlen)) {
3739 if (prev)
3740 prev->next = sess->next;
3741 else
3742 first = sess->next;
3743 OPENSSL_free(sess->id);
3744 OPENSSL_free(sess->der);
3745 OPENSSL_free(sess);
3746 return;
3747 }
3748 prev = sess;
3749 }
3750 }
3751
3752 static void init_session_cache_ctx(SSL_CTX *sctx)
3753 {
3754 SSL_CTX_set_session_cache_mode(sctx,
3755 SSL_SESS_CACHE_NO_INTERNAL |
3756 SSL_SESS_CACHE_SERVER);
3757 SSL_CTX_sess_set_new_cb(sctx, add_session);
3758 SSL_CTX_sess_set_get_cb(sctx, get_session);
3759 SSL_CTX_sess_set_remove_cb(sctx, del_session);
3760 }
3761
3762 static void free_sessions(void)
3763 {
3764 simple_ssl_session *sess, *tsess;
3765 for (sess = first; sess;) {
3766 OPENSSL_free(sess->id);
3767 OPENSSL_free(sess->der);
3768 tsess = sess;
3769 sess = sess->next;
3770 OPENSSL_free(tsess);
3771 }
3772 first = NULL;
3773 }
3774
3775 #endif /* OPENSSL_NO_SOCK */
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