s_server.c@ 95024

Last change on this file since 95024 was 91772, checked in by vboxsync, 3 years ago
openssl-1.1.1l: Applied and adjusted our OpenSSL changes to 1.1.1l. bugref:10126
File size: 116.5 KB

Line
1	/*
2	* Copyright 1995-2021 The OpenSSL Project Authors. All Rights Reserved.
3	* Copyright (c) 2002, Oracle and/or its affiliates. All rights reserved
4	* Copyright 2005 Nokia. All rights reserved.
5	*
6	* Licensed under the OpenSSL license (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
25	#ifndef OPENSSL_NO_SOCK
26
27	/*
28	* With IPv6, it looks like Digital has mixed up the proper order of
29	* recursive header file inclusion, resulting in the compiler complaining
30	* that u_int isn't defined, but only if _POSIX_C_SOURCE is defined, which is
31	* needed to have fileno() declared correctly... So let's define u_int
32	*/
33	#if defined(OPENSSL_SYS_VMS_DECC) && !defined(__U_INT)
34	# define __U_INT
35	typedef unsigned int u_int;
36	#endif
37
38	#include <openssl/bn.h>
39	#include "apps.h"
40	#include "progs.h"
41	#include <openssl/err.h>
42	#include <openssl/pem.h>
43	#include <openssl/x509.h>
44	#include <openssl/ssl.h>
45	#include <openssl/rand.h>
46	#include <openssl/ocsp.h>
47	#ifndef OPENSSL_NO_DH
48	# include <openssl/dh.h>
49	#endif
50	#ifndef OPENSSL_NO_RSA
51	# include <openssl/rsa.h>
52	#endif
53	#ifndef OPENSSL_NO_SRP
54	# include <openssl/srp.h>
55	#endif
56	#include "s_apps.h"
57	#include "timeouts.h"
58	#ifdef CHARSET_EBCDIC
59	#include <openssl/ebcdic.h>
60	#endif
61	#include "internal/sockets.h"
62
63	static int not_resumable_sess_cb(SSL *s, int is_forward_secure);
64	static int sv_body(int s, int stype, int prot, unsigned char *context);
65	static int www_body(int s, int stype, int prot, unsigned char *context);
66	static int rev_body(int s, int stype, int prot, unsigned char *context);
67	static void close_accept_socket(void);
68	static int init_ssl_connection(SSL *s);
69	static void print_stats(BIO bp, SSL_CTX ctx);
70	static int generate_session_id(SSL ssl, unsigned char id,
71	unsigned int *id_len);
72	static void init_session_cache_ctx(SSL_CTX *sctx);
73	static void free_sessions(void);
74	#ifndef OPENSSL_NO_DH
75	static DH load_dh_param(const char dhfile);
76	#endif
77	static void print_connection_info(SSL *con);
78
79	static const int bufsize = 16 * 1024;
80	static int accept_socket = -1;
81
82	#define TEST_CERT "server.pem"
83	#define TEST_CERT2 "server2.pem"
84
85	static int s_nbio = 0;
86	static int s_nbio_test = 0;
87	static int s_crlf = 0;
88	static SSL_CTX *ctx = NULL;
89	static SSL_CTX *ctx2 = NULL;
90	static int www = 0;
91
92	static BIO *bio_s_out = NULL;
93	static BIO *bio_s_msg = NULL;
94	static int s_debug = 0;
95	static int s_tlsextdebug = 0;
96	static int s_msg = 0;
97	static int s_quiet = 0;
98	static int s_ign_eof = 0;
99	static int s_brief = 0;
100
101	static char *keymatexportlabel = NULL;
102	static int keymatexportlen = 20;
103
104	static int async = 0;
105
106	static const char *session_id_prefix = NULL;
107
108	#ifndef OPENSSL_NO_DTLS
109	static int enable_timeouts = 0;
110	static long socket_mtu;
111	#endif
112
113	/*
114	* We define this but make it always be 0 in no-dtls builds to simplify the
115	* code.
116	*/
117	static int dtlslisten = 0;
118	static int stateless = 0;
119
120	static int early_data = 0;
121	static SSL_SESSION *psksess = NULL;
122
123	static char *psk_identity = "Client_identity";
124	char psk_key = NULL; / by default PSK is not used */
125
126	#ifndef OPENSSL_NO_PSK
127	static unsigned int psk_server_cb(SSL ssl, const char identity,
128	unsigned char *psk,
129	unsigned int max_psk_len)
130	{
131	long key_len = 0;
132	unsigned char *key;
133
134	if (s_debug)
135	BIO_printf(bio_s_out, "psk_server_cb\n");
136
137	if (SSL_version(ssl) >= TLS1_3_VERSION) {
138	/*
139	* This callback is designed for use in TLSv1.2. It is possible to use
140	* a single callback for all protocol versions - but it is preferred to
141	* use a dedicated callback for TLSv1.3. For TLSv1.3 we have
142	* psk_find_session_cb.
143	*/
144	return 0;
145	}
146
147	if (identity == NULL) {
148	BIO_printf(bio_err, "Error: client did not send PSK identity\n");
149	goto out_err;
150	}
151	if (s_debug)
152	BIO_printf(bio_s_out, "identity_len=%d identity=%s\n",
153	(int)strlen(identity), identity);
154
155	/* here we could lookup the given identity e.g. from a database */
156	if (strcmp(identity, psk_identity) != 0) {
157	BIO_printf(bio_s_out, "PSK warning: client identity not what we expected"
158	" (got '%s' expected '%s')\n", identity, psk_identity);
159	} else {
160	if (s_debug)
161	BIO_printf(bio_s_out, "PSK client identity found\n");
162	}
163
164	/* convert the PSK key to binary */
165	key = OPENSSL_hexstr2buf(psk_key, &key_len);
166	if (key == NULL) {
167	BIO_printf(bio_err, "Could not convert PSK key '%s' to buffer\n",
168	psk_key);
169	return 0;
170	}
171	if (key_len > (int)max_psk_len) {
172	BIO_printf(bio_err,
173	"psk buffer of callback is too small (%d) for key (%ld)\n",
174	max_psk_len, key_len);
175	OPENSSL_free(key);
176	return 0;
177	}
178
179	memcpy(psk, key, key_len);
180	OPENSSL_free(key);
181
182	if (s_debug)
183	BIO_printf(bio_s_out, "fetched PSK len=%ld\n", key_len);
184	return key_len;
185	out_err:
186	if (s_debug)
187	BIO_printf(bio_err, "Error in PSK server callback\n");
188	(void)BIO_flush(bio_err);
189	(void)BIO_flush(bio_s_out);
190	return 0;
191	}
192	#endif
193
194	static int psk_find_session_cb(SSL ssl, const unsigned char identity,
195	size_t identity_len, SSL_SESSION **sess)
196	{
197	SSL_SESSION *tmpsess = NULL;
198	unsigned char *key;
199	long key_len;
200	const SSL_CIPHER *cipher = NULL;
201
202	if (strlen(psk_identity) != identity_len
203	\|\| memcmp(psk_identity, identity, identity_len) != 0) {
204	*sess = NULL;
205	return 1;
206	}
207
208	if (psksess != NULL) {
209	SSL_SESSION_up_ref(psksess);
210	*sess = psksess;
211	return 1;
212	}
213
214	key = OPENSSL_hexstr2buf(psk_key, &key_len);
215	if (key == NULL) {
216	BIO_printf(bio_err, "Could not convert PSK key '%s' to buffer\n",
217	psk_key);
218	return 0;
219	}
220
221	/* We default to SHA256 */
222	cipher = SSL_CIPHER_find(ssl, tls13_aes128gcmsha256_id);
223	if (cipher == NULL) {
224	BIO_printf(bio_err, "Error finding suitable ciphersuite\n");
225	OPENSSL_free(key);
226	return 0;
227	}
228
229	tmpsess = SSL_SESSION_new();
230	if (tmpsess == NULL
231	\|\| !SSL_SESSION_set1_master_key(tmpsess, key, key_len)
232	\|\| !SSL_SESSION_set_cipher(tmpsess, cipher)
233	\|\| !SSL_SESSION_set_protocol_version(tmpsess, SSL_version(ssl))) {
234	OPENSSL_free(key);
235	return 0;
236	}
237	OPENSSL_free(key);
238	*sess = tmpsess;
239
240	return 1;
241	}
242
243	#ifndef OPENSSL_NO_SRP
244	/* This is a context that we pass to callbacks */
245	typedef struct srpsrvparm_st {
246	char *login;
247	SRP_VBASE *vb;
248	SRP_user_pwd *user;
249	} srpsrvparm;
250	static srpsrvparm srp_callback_parm;
251
252	/*
253	* This callback pretends to require some asynchronous logic in order to
254	* obtain a verifier. When the callback is called for a new connection we
255	* return with a negative value. This will provoke the accept etc to return
256	* with an LOOKUP_X509. The main logic of the reinvokes the suspended call
257	* (which would normally occur after a worker has finished) and we set the
258	* user parameters.
259	*/
260	static int ssl_srp_server_param_cb(SSL s, int ad, void *arg)
261	{
262	srpsrvparm p = (srpsrvparm ) arg;
263	int ret = SSL3_AL_FATAL;
264
265	if (p->login == NULL && p->user == NULL) {
266	p->login = SSL_get_srp_username(s);
267	BIO_printf(bio_err, "SRP username = \"%s\"\n", p->login);
268	return -1;
269	}
270
271	if (p->user == NULL) {
272	BIO_printf(bio_err, "User %s doesn't exist\n", p->login);
273	goto err;
274	}
275
276	if (SSL_set_srp_server_param
277	(s, p->user->N, p->user->g, p->user->s, p->user->v,
278	p->user->info) < 0) {
279	*ad = SSL_AD_INTERNAL_ERROR;
280	goto err;
281	}
282	BIO_printf(bio_err,
283	"SRP parameters set: username = \"%s\" info=\"%s\" \n",
284	p->login, p->user->info);
285	ret = SSL_ERROR_NONE;
286
287	err:
288	SRP_user_pwd_free(p->user);
289	p->user = NULL;
290	p->login = NULL;
291	return ret;
292	}
293
294	#endif
295
296	static int local_argc = 0;
297	static char **local_argv;
298
299	#ifdef CHARSET_EBCDIC
300	static int ebcdic_new(BIO *bi);
301	static int ebcdic_free(BIO *a);
302	static int ebcdic_read(BIO b, char out, int outl);
303	static int ebcdic_write(BIO b, const char in, int inl);
304	static long ebcdic_ctrl(BIO b, int cmd, long num, void ptr);
305	static int ebcdic_gets(BIO bp, char buf, int size);
306	static int ebcdic_puts(BIO bp, const char str);
307
308	# define BIO_TYPE_EBCDIC_FILTER (18\|0x0200)
309	static BIO_METHOD *methods_ebcdic = NULL;
310
311	/* This struct is "unwarranted chumminess with the compiler." */
312	typedef struct {
313	size_t alloced;
314	char buff[1];
315	} EBCDIC_OUTBUFF;
316
317	static const BIO_METHOD *BIO_f_ebcdic_filter()
318	{
319	if (methods_ebcdic == NULL) {
320	methods_ebcdic = BIO_meth_new(BIO_TYPE_EBCDIC_FILTER,
321	"EBCDIC/ASCII filter");
322	if (methods_ebcdic == NULL
323	\|\| !BIO_meth_set_write(methods_ebcdic, ebcdic_write)
324	\|\| !BIO_meth_set_read(methods_ebcdic, ebcdic_read)
325	\|\| !BIO_meth_set_puts(methods_ebcdic, ebcdic_puts)
326	\|\| !BIO_meth_set_gets(methods_ebcdic, ebcdic_gets)
327	\|\| !BIO_meth_set_ctrl(methods_ebcdic, ebcdic_ctrl)
328	\|\| !BIO_meth_set_create(methods_ebcdic, ebcdic_new)
329	\|\| !BIO_meth_set_destroy(methods_ebcdic, ebcdic_free))
330	return NULL;
331	}
332	return methods_ebcdic;
333	}
334
335	static int ebcdic_new(BIO *bi)
336	{
337	EBCDIC_OUTBUFF *wbuf;
338
339	wbuf = app_malloc(sizeof(*wbuf) + 1024, "ebcdic wbuf");
340	wbuf->alloced = 1024;
341	wbuf->buff[0] = '\0';
342
343	BIO_set_data(bi, wbuf);
344	BIO_set_init(bi, 1);
345	return 1;
346	}
347
348	static int ebcdic_free(BIO *a)
349	{
350	EBCDIC_OUTBUFF *wbuf;
351
352	if (a == NULL)
353	return 0;
354	wbuf = BIO_get_data(a);
355	OPENSSL_free(wbuf);
356	BIO_set_data(a, NULL);
357	BIO_set_init(a, 0);
358
359	return 1;
360	}
361
362	static int ebcdic_read(BIO b, char out, int outl)
363	{
364	int ret = 0;
365	BIO *next = BIO_next(b);
366
367	if (out == NULL \|\| outl == 0)
368	return 0;
369	if (next == NULL)
370	return 0;
371
372	ret = BIO_read(next, out, outl);
373	if (ret > 0)
374	ascii2ebcdic(out, out, ret);
375	return ret;
376	}
377
378	static int ebcdic_write(BIO b, const char in, int inl)
379	{
380	EBCDIC_OUTBUFF *wbuf;
381	BIO *next = BIO_next(b);
382	int ret = 0;
383	int num;
384
385	if ((in == NULL) \|\| (inl <= 0))
386	return 0;
387	if (next == NULL)
388	return 0;
389
390	wbuf = (EBCDIC_OUTBUFF *) BIO_get_data(b);
391
392	if (inl > (num = wbuf->alloced)) {
393	num = num + num; /* double the size */
394	if (num < inl)
395	num = inl;
396	OPENSSL_free(wbuf);
397	wbuf = app_malloc(sizeof(*wbuf) + num, "grow ebcdic wbuf");
398
399	wbuf->alloced = num;
400	wbuf->buff[0] = '\0';
401
402	BIO_set_data(b, wbuf);
403	}
404
405	ebcdic2ascii(wbuf->buff, in, inl);
406
407	ret = BIO_write(next, wbuf->buff, inl);
408
409	return ret;
410	}
411
412	static long ebcdic_ctrl(BIO b, int cmd, long num, void ptr)
413	{
414	long ret;
415	BIO *next = BIO_next(b);
416
417	if (next == NULL)
418	return 0;
419	switch (cmd) {
420	case BIO_CTRL_DUP:
421	ret = 0L;
422	break;
423	default:
424	ret = BIO_ctrl(next, cmd, num, ptr);
425	break;
426	}
427	return ret;
428	}
429
430	static int ebcdic_gets(BIO bp, char buf, int size)
431	{
432	int i, ret = 0;
433	BIO *next = BIO_next(bp);
434
435	if (next == NULL)
436	return 0;
437	/* return(BIO_gets(bp->next_bio,buf,size));*/
438	for (i = 0; i < size - 1; ++i) {
439	ret = ebcdic_read(bp, &buf[i], 1);
440	if (ret <= 0)
441	break;
442	else if (buf[i] == '\n') {
443	++i;
444	break;
445	}
446	}
447	if (i < size)
448	buf[i] = '\0';
449	return (ret < 0 && i == 0) ? ret : i;
450	}
451
452	static int ebcdic_puts(BIO bp, const char str)
453	{
454	if (BIO_next(bp) == NULL)
455	return 0;
456	return ebcdic_write(bp, str, strlen(str));
457	}
458	#endif
459
460	/* This is a context that we pass to callbacks */
461	typedef struct tlsextctx_st {
462	char *servername;
463	BIO *biodebug;
464	int extension_error;
465	} tlsextctx;
466
467	static int ssl_servername_cb(SSL s, int ad, void *arg)
468	{
469	tlsextctx p = (tlsextctx ) arg;
470	const char *servername = SSL_get_servername(s, TLSEXT_NAMETYPE_host_name);
471
472	if (servername != NULL && p->biodebug != NULL) {
473	const char *cp = servername;
474	unsigned char uc;
475
476	BIO_printf(p->biodebug, "Hostname in TLS extension: \"");
477	while ((uc = *cp++) != 0)
478	BIO_printf(p->biodebug,
479	isascii(uc) && isprint(uc) ? "%c" : "\\x%02x", uc);
480	BIO_printf(p->biodebug, "\"\n");
481	}
482
483	if (p->servername == NULL)
484	return SSL_TLSEXT_ERR_NOACK;
485
486	if (servername != NULL) {
487	if (strcasecmp(servername, p->servername))
488	return p->extension_error;
489	if (ctx2 != NULL) {
490	BIO_printf(p->biodebug, "Switching server context.\n");
491	SSL_set_SSL_CTX(s, ctx2);
492	}
493	}
494	return SSL_TLSEXT_ERR_OK;
495	}
496
497	/* Structure passed to cert status callback */
498	typedef struct tlsextstatusctx_st {
499	int timeout;
500	/* File to load OCSP Response from (or NULL if no file) */
501	char *respin;
502	/* Default responder to use */
503	char host, path, *port;
504	int use_ssl;
505	int verbose;
506	} tlsextstatusctx;
507
508	static tlsextstatusctx tlscstatp = { -1 };
509
510	#ifndef OPENSSL_NO_OCSP
511
512	/*
513	* Helper function to get an OCSP_RESPONSE from a responder. This is a
514	* simplified version. It examines certificates each time and makes one OCSP
515	* responder query for each request. A full version would store details such as
516	* the OCSP certificate IDs and minimise the number of OCSP responses by caching
517	* them until they were considered "expired".
518	*/
519	static int get_ocsp_resp_from_responder(SSL s, tlsextstatusctx srctx,
520	OCSP_RESPONSE **resp)
521	{
522	char host = NULL, port = NULL, *path = NULL;
523	int use_ssl;
524	STACK_OF(OPENSSL_STRING) *aia = NULL;
525	X509 *x = NULL;
526	X509_STORE_CTX *inctx = NULL;
527	X509_OBJECT *obj;
528	OCSP_REQUEST *req = NULL;
529	OCSP_CERTID *id = NULL;
530	STACK_OF(X509_EXTENSION) *exts;
531	int ret = SSL_TLSEXT_ERR_NOACK;
532	int i;
533
534	/* Build up OCSP query from server certificate */
535	x = SSL_get_certificate(s);
536	aia = X509_get1_ocsp(x);
537	if (aia != NULL) {
538	if (!OCSP_parse_url(sk_OPENSSL_STRING_value(aia, 0),
539	&host, &port, &path, &use_ssl)) {
540	BIO_puts(bio_err, "cert_status: can't parse AIA URL\n");
541	goto err;
542	}
543	if (srctx->verbose)
544	BIO_printf(bio_err, "cert_status: AIA URL: %s\n",
545	sk_OPENSSL_STRING_value(aia, 0));
546	} else {
547	if (srctx->host == NULL) {
548	BIO_puts(bio_err,
549	"cert_status: no AIA and no default responder URL\n");
550	goto done;
551	}
552	host = srctx->host;
553	path = srctx->path;
554	port = srctx->port;
555	use_ssl = srctx->use_ssl;
556	}
557
558	inctx = X509_STORE_CTX_new();
559	if (inctx == NULL)
560	goto err;
561	if (!X509_STORE_CTX_init(inctx,
562	SSL_CTX_get_cert_store(SSL_get_SSL_CTX(s)),
563	NULL, NULL))
564	goto err;
565	obj = X509_STORE_CTX_get_obj_by_subject(inctx, X509_LU_X509,
566	X509_get_issuer_name(x));
567	if (obj == NULL) {
568	BIO_puts(bio_err, "cert_status: Can't retrieve issuer certificate.\n");
569	goto done;
570	}
571	id = OCSP_cert_to_id(NULL, x, X509_OBJECT_get0_X509(obj));
572	X509_OBJECT_free(obj);
573	if (id == NULL)
574	goto err;
575	req = OCSP_REQUEST_new();
576	if (req == NULL)
577	goto err;
578	if (!OCSP_request_add0_id(req, id))
579	goto err;
580	id = NULL;
581	/* Add any extensions to the request */
582	SSL_get_tlsext_status_exts(s, &exts);
583	for (i = 0; i < sk_X509_EXTENSION_num(exts); i++) {
584	X509_EXTENSION *ext = sk_X509_EXTENSION_value(exts, i);
585	if (!OCSP_REQUEST_add_ext(req, ext, -1))
586	goto err;
587	}
588	*resp = process_responder(req, host, path, port, use_ssl, NULL,
589	srctx->timeout);
590	if (*resp == NULL) {
591	BIO_puts(bio_err, "cert_status: error querying responder\n");
592	goto done;
593	}
594
595	ret = SSL_TLSEXT_ERR_OK;
596	goto done;
597
598	err:
599	ret = SSL_TLSEXT_ERR_ALERT_FATAL;
600	done:
601	/*
602	* If we parsed aia we need to free; otherwise they were copied and we
603	* don't
604	*/
605	if (aia != NULL) {
606	OPENSSL_free(host);
607	OPENSSL_free(path);
608	OPENSSL_free(port);
609	X509_email_free(aia);
610	}
611	OCSP_CERTID_free(id);
612	OCSP_REQUEST_free(req);
613	X509_STORE_CTX_free(inctx);
614	return ret;
615	}
616
617	/*
618	* Certificate Status callback. This is called when a client includes a
619	* certificate status request extension. The response is either obtained from a
620	* file, or from an OCSP responder.
621	*/
622	static int cert_status_cb(SSL s, void arg)
623	{
624	tlsextstatusctx *srctx = arg;
625	OCSP_RESPONSE *resp = NULL;
626	unsigned char *rspder = NULL;
627	int rspderlen;
628	int ret = SSL_TLSEXT_ERR_ALERT_FATAL;
629
630	if (srctx->verbose)
631	BIO_puts(bio_err, "cert_status: callback called\n");
632
633	if (srctx->respin != NULL) {
634	BIO *derbio = bio_open_default(srctx->respin, 'r', FORMAT_ASN1);
635	if (derbio == NULL) {
636	BIO_puts(bio_err, "cert_status: Cannot open OCSP response file\n");
637	goto err;
638	}
639	resp = d2i_OCSP_RESPONSE_bio(derbio, NULL);
640	BIO_free(derbio);
641	if (resp == NULL) {
642	BIO_puts(bio_err, "cert_status: Error reading OCSP response\n");
643	goto err;
644	}
645	} else {
646	ret = get_ocsp_resp_from_responder(s, srctx, &resp);
647	if (ret != SSL_TLSEXT_ERR_OK)
648	goto err;
649	}
650
651	rspderlen = i2d_OCSP_RESPONSE(resp, &rspder);
652	if (rspderlen <= 0)
653	goto err;
654
655	SSL_set_tlsext_status_ocsp_resp(s, rspder, rspderlen);
656	if (srctx->verbose) {
657	BIO_puts(bio_err, "cert_status: ocsp response sent:\n");
658	OCSP_RESPONSE_print(bio_err, resp, 2);
659	}
660
661	ret = SSL_TLSEXT_ERR_OK;
662
663	err:
664	if (ret != SSL_TLSEXT_ERR_OK)
665	ERR_print_errors(bio_err);
666
667	OCSP_RESPONSE_free(resp);
668
669	return ret;
670	}
671	#endif
672
673	#ifndef OPENSSL_NO_NEXTPROTONEG
674	/* This is the context that we pass to next_proto_cb */
675	typedef struct tlsextnextprotoctx_st {
676	unsigned char *data;
677	size_t len;
678	} tlsextnextprotoctx;
679
680	static int next_proto_cb(SSL s, const unsigned char *data,
681	unsigned int len, void arg)
682	{
683	tlsextnextprotoctx *next_proto = arg;
684
685	*data = next_proto->data;
686	*len = next_proto->len;
687
688	return SSL_TLSEXT_ERR_OK;
689	}
690	#endif /* ndef OPENSSL_NO_NEXTPROTONEG */
691
692	/* This the context that we pass to alpn_cb */
693	typedef struct tlsextalpnctx_st {
694	unsigned char *data;
695	size_t len;
696	} tlsextalpnctx;
697
698	static int alpn_cb(SSL s, const unsigned char out, unsigned char outlen,
699	const unsigned char in, unsigned int inlen, void arg)
700	{
701	tlsextalpnctx *alpn_ctx = arg;
702
703	if (!s_quiet) {
704	/* We can assume that \|in\| is syntactically valid. */
705	unsigned int i;
706	BIO_printf(bio_s_out, "ALPN protocols advertised by the client: ");
707	for (i = 0; i < inlen;) {
708	if (i)
709	BIO_write(bio_s_out, ", ", 2);
710	BIO_write(bio_s_out, &in[i + 1], in[i]);
711	i += in[i] + 1;
712	}
713	BIO_write(bio_s_out, "\n", 1);
714	}
715
716	if (SSL_select_next_proto
717	((unsigned char **)out, outlen, alpn_ctx->data, alpn_ctx->len, in,
718	inlen) != OPENSSL_NPN_NEGOTIATED) {
719	return SSL_TLSEXT_ERR_NOACK;
720	}
721
722	if (!s_quiet) {
723	BIO_printf(bio_s_out, "ALPN protocols selected: ");
724	BIO_write(bio_s_out, out, outlen);
725	BIO_write(bio_s_out, "\n", 1);
726	}
727
728	return SSL_TLSEXT_ERR_OK;
729	}
730
731	static int not_resumable_sess_cb(SSL *s, int is_forward_secure)
732	{
733	/* disable resumption for sessions with forward secure ciphers */
734	return is_forward_secure;
735	}
736
737	typedef enum OPTION_choice {
738	OPT_ERR = -1, OPT_EOF = 0, OPT_HELP, OPT_ENGINE,
739	OPT_4, OPT_6, OPT_ACCEPT, OPT_PORT, OPT_UNIX, OPT_UNLINK, OPT_NACCEPT,
740	OPT_VERIFY, OPT_NAMEOPT, OPT_UPPER_V_VERIFY, OPT_CONTEXT, OPT_CERT, OPT_CRL,
741	OPT_CRL_DOWNLOAD, OPT_SERVERINFO, OPT_CERTFORM, OPT_KEY, OPT_KEYFORM,
742	OPT_PASS, OPT_CERT_CHAIN, OPT_DHPARAM, OPT_DCERTFORM, OPT_DCERT,
743	OPT_DKEYFORM, OPT_DPASS, OPT_DKEY, OPT_DCERT_CHAIN, OPT_NOCERT,
744	OPT_CAPATH, OPT_NOCAPATH, OPT_CHAINCAPATH, OPT_VERIFYCAPATH, OPT_NO_CACHE,
745	OPT_EXT_CACHE, OPT_CRLFORM, OPT_VERIFY_RET_ERROR, OPT_VERIFY_QUIET,
746	OPT_BUILD_CHAIN, OPT_CAFILE, OPT_NOCAFILE, OPT_CHAINCAFILE,
747	OPT_VERIFYCAFILE, OPT_NBIO, OPT_NBIO_TEST, OPT_IGN_EOF, OPT_NO_IGN_EOF,
748	OPT_DEBUG, OPT_TLSEXTDEBUG, OPT_STATUS, OPT_STATUS_VERBOSE,
749	OPT_STATUS_TIMEOUT, OPT_STATUS_URL, OPT_STATUS_FILE, OPT_MSG, OPT_MSGFILE,
750	OPT_TRACE, OPT_SECURITY_DEBUG, OPT_SECURITY_DEBUG_VERBOSE, OPT_STATE,
751	OPT_CRLF, OPT_QUIET, OPT_BRIEF, OPT_NO_DHE,
752	OPT_NO_RESUME_EPHEMERAL, OPT_PSK_IDENTITY, OPT_PSK_HINT, OPT_PSK,
753	OPT_PSK_SESS, OPT_SRPVFILE, OPT_SRPUSERSEED, OPT_REV, OPT_WWW,
754	OPT_UPPER_WWW, OPT_HTTP, OPT_ASYNC, OPT_SSL_CONFIG,
755	OPT_MAX_SEND_FRAG, OPT_SPLIT_SEND_FRAG, OPT_MAX_PIPELINES, OPT_READ_BUF,
756	OPT_SSL3, OPT_TLS1_3, OPT_TLS1_2, OPT_TLS1_1, OPT_TLS1, OPT_DTLS, OPT_DTLS1,
757	OPT_DTLS1_2, OPT_SCTP, OPT_TIMEOUT, OPT_MTU, OPT_LISTEN, OPT_STATELESS,
758	OPT_ID_PREFIX, OPT_SERVERNAME, OPT_SERVERNAME_FATAL,
759	OPT_CERT2, OPT_KEY2, OPT_NEXTPROTONEG, OPT_ALPN,
760	OPT_SRTP_PROFILES, OPT_KEYMATEXPORT, OPT_KEYMATEXPORTLEN,
761	OPT_KEYLOG_FILE, OPT_MAX_EARLY, OPT_RECV_MAX_EARLY, OPT_EARLY_DATA,
762	OPT_S_NUM_TICKETS, OPT_ANTI_REPLAY, OPT_NO_ANTI_REPLAY, OPT_SCTP_LABEL_BUG,
763	OPT_R_ENUM,
764	OPT_S_ENUM,
765	OPT_V_ENUM,
766	OPT_X_ENUM
767	} OPTION_CHOICE;
768
769	const OPTIONS s_server_options[] = {
770	{"help", OPT_HELP, '-', "Display this summary"},
771	{"port", OPT_PORT, 'p',
772	"TCP/IP port to listen on for connections (default is " PORT ")"},
773	{"accept", OPT_ACCEPT, 's',
774	"TCP/IP optional host and port to listen on for connections (default is *:" PORT ")"},
775	#ifdef AF_UNIX
776	{"unix", OPT_UNIX, 's', "Unix domain socket to accept on"},
777	#endif
778	{"4", OPT_4, '-', "Use IPv4 only"},
779	{"6", OPT_6, '-', "Use IPv6 only"},
780	#ifdef AF_UNIX
781	{"unlink", OPT_UNLINK, '-', "For -unix, unlink existing socket first"},
782	#endif
783	{"context", OPT_CONTEXT, 's', "Set session ID context"},
784	{"verify", OPT_VERIFY, 'n', "Turn on peer certificate verification"},
785	{"Verify", OPT_UPPER_V_VERIFY, 'n',
786	"Turn on peer certificate verification, must have a cert"},
787	{"cert", OPT_CERT, '<', "Certificate file to use; default is " TEST_CERT},
788	{"nameopt", OPT_NAMEOPT, 's', "Various certificate name options"},
789	{"naccept", OPT_NACCEPT, 'p', "Terminate after #num connections"},
790	{"serverinfo", OPT_SERVERINFO, 's',
791	"PEM serverinfo file for certificate"},
792	{"certform", OPT_CERTFORM, 'F',
793	"Certificate format (PEM or DER) PEM default"},
794	{"key", OPT_KEY, 's',
795	"Private Key if not in -cert; default is " TEST_CERT},
796	{"keyform", OPT_KEYFORM, 'f',
797	"Key format (PEM, DER or ENGINE) PEM default"},
798	{"pass", OPT_PASS, 's', "Private key file pass phrase source"},
799	{"dcert", OPT_DCERT, '<',
800	"Second certificate file to use (usually for DSA)"},
801	{"dhparam", OPT_DHPARAM, '<', "DH parameters file to use"},
802	{"dcertform", OPT_DCERTFORM, 'F',
803	"Second certificate format (PEM or DER) PEM default"},
804	{"dkey", OPT_DKEY, '<',
805	"Second private key file to use (usually for DSA)"},
806	{"dkeyform", OPT_DKEYFORM, 'F',
807	"Second key format (PEM, DER or ENGINE) PEM default"},
808	{"dpass", OPT_DPASS, 's', "Second private key file pass phrase source"},
809	{"nbio_test", OPT_NBIO_TEST, '-', "Test with the non-blocking test bio"},
810	{"crlf", OPT_CRLF, '-', "Convert LF from terminal into CRLF"},
811	{"debug", OPT_DEBUG, '-', "Print more output"},
812	{"msg", OPT_MSG, '-', "Show protocol messages"},
813	{"msgfile", OPT_MSGFILE, '>',
814	"File to send output of -msg or -trace, instead of stdout"},
815	{"state", OPT_STATE, '-', "Print the SSL states"},
816	{"CAfile", OPT_CAFILE, '<', "PEM format file of CA's"},
817	{"CApath", OPT_CAPATH, '/', "PEM format directory of CA's"},
818	{"no-CAfile", OPT_NOCAFILE, '-',
819	"Do not load the default certificates file"},
820	{"no-CApath", OPT_NOCAPATH, '-',
821	"Do not load certificates from the default certificates directory"},
822	{"nocert", OPT_NOCERT, '-', "Don't use any certificates (Anon-DH)"},
823	{"quiet", OPT_QUIET, '-', "No server output"},
824	{"no_resume_ephemeral", OPT_NO_RESUME_EPHEMERAL, '-',
825	"Disable caching and tickets if ephemeral (EC)DH is used"},
826	{"www", OPT_WWW, '-', "Respond to a 'GET /' with a status page"},
827	{"WWW", OPT_UPPER_WWW, '-', "Respond to a 'GET with the file ./path"},
828	{"servername", OPT_SERVERNAME, 's',
829	"Servername for HostName TLS extension"},
830	{"servername_fatal", OPT_SERVERNAME_FATAL, '-',
831	"mismatch send fatal alert (default warning alert)"},
832	{"cert2", OPT_CERT2, '<',
833	"Certificate file to use for servername; default is" TEST_CERT2},
834	{"key2", OPT_KEY2, '<',
835	"-Private Key file to use for servername if not in -cert2"},
836	{"tlsextdebug", OPT_TLSEXTDEBUG, '-',
837	"Hex dump of all TLS extensions received"},
838	{"HTTP", OPT_HTTP, '-', "Like -WWW but ./path includes HTTP headers"},
839	{"id_prefix", OPT_ID_PREFIX, 's',
840	"Generate SSL/TLS session IDs prefixed by arg"},
841	OPT_R_OPTIONS,
842	{"keymatexport", OPT_KEYMATEXPORT, 's',
843	"Export keying material using label"},
844	{"keymatexportlen", OPT_KEYMATEXPORTLEN, 'p',
845	"Export len bytes of keying material (default 20)"},
846	{"CRL", OPT_CRL, '<', "CRL file to use"},
847	{"crl_download", OPT_CRL_DOWNLOAD, '-',
848	"Download CRL from distribution points"},
849	{"cert_chain", OPT_CERT_CHAIN, '<',
850	"certificate chain file in PEM format"},
851	{"dcert_chain", OPT_DCERT_CHAIN, '<',
852	"second certificate chain file in PEM format"},
853	{"chainCApath", OPT_CHAINCAPATH, '/',
854	"use dir as certificate store path to build CA certificate chain"},
855	{"verifyCApath", OPT_VERIFYCAPATH, '/',
856	"use dir as certificate store path to verify CA certificate"},
857	{"no_cache", OPT_NO_CACHE, '-', "Disable session cache"},
858	{"ext_cache", OPT_EXT_CACHE, '-',
859	"Disable internal cache, setup and use external cache"},
860	{"CRLform", OPT_CRLFORM, 'F', "CRL format (PEM or DER) PEM is default"},
861	{"verify_return_error", OPT_VERIFY_RET_ERROR, '-',
862	"Close connection on verification error"},
863	{"verify_quiet", OPT_VERIFY_QUIET, '-',
864	"No verify output except verify errors"},
865	{"build_chain", OPT_BUILD_CHAIN, '-', "Build certificate chain"},
866	{"chainCAfile", OPT_CHAINCAFILE, '<',
867	"CA file for certificate chain (PEM format)"},
868	{"verifyCAfile", OPT_VERIFYCAFILE, '<',
869	"CA file for certificate verification (PEM format)"},
870	{"ign_eof", OPT_IGN_EOF, '-', "ignore input eof (default when -quiet)"},
871	{"no_ign_eof", OPT_NO_IGN_EOF, '-', "Do not ignore input eof"},
872	#ifndef OPENSSL_NO_OCSP
873	{"status", OPT_STATUS, '-', "Request certificate status from server"},
874	{"status_verbose", OPT_STATUS_VERBOSE, '-',
875	"Print more output in certificate status callback"},
876	{"status_timeout", OPT_STATUS_TIMEOUT, 'n',
877	"Status request responder timeout"},
878	{"status_url", OPT_STATUS_URL, 's', "Status request fallback URL"},
879	{"status_file", OPT_STATUS_FILE, '<',
880	"File containing DER encoded OCSP Response"},
881	#endif
882	#ifndef OPENSSL_NO_SSL_TRACE
883	{"trace", OPT_TRACE, '-', "trace protocol messages"},
884	#endif
885	{"security_debug", OPT_SECURITY_DEBUG, '-',
886	"Print output from SSL/TLS security framework"},
887	{"security_debug_verbose", OPT_SECURITY_DEBUG_VERBOSE, '-',
888	"Print more output from SSL/TLS security framework"},
889	{"brief", OPT_BRIEF, '-',
890	"Restrict output to brief summary of connection parameters"},
891	{"rev", OPT_REV, '-',
892	"act as a simple test server which just sends back with the received text reversed"},
893	{"async", OPT_ASYNC, '-', "Operate in asynchronous mode"},
894	{"ssl_config", OPT_SSL_CONFIG, 's',
895	"Configure SSL_CTX using the configuration 'val'"},
896	{"max_send_frag", OPT_MAX_SEND_FRAG, 'p', "Maximum Size of send frames "},
897	{"split_send_frag", OPT_SPLIT_SEND_FRAG, 'p',
898	"Size used to split data for encrypt pipelines"},
899	{"max_pipelines", OPT_MAX_PIPELINES, 'p',
900	"Maximum number of encrypt/decrypt pipelines to be used"},
901	{"read_buf", OPT_READ_BUF, 'p',
902	"Default read buffer size to be used for connections"},
903	OPT_S_OPTIONS,
904	OPT_V_OPTIONS,
905	OPT_X_OPTIONS,
906	{"nbio", OPT_NBIO, '-', "Use non-blocking IO"},
907	{"psk_identity", OPT_PSK_IDENTITY, 's', "PSK identity to expect"},
908	#ifndef OPENSSL_NO_PSK
909	{"psk_hint", OPT_PSK_HINT, 's', "PSK identity hint to use"},
910	#endif
911	{"psk", OPT_PSK, 's', "PSK in hex (without 0x)"},
912	{"psk_session", OPT_PSK_SESS, '<', "File to read PSK SSL session from"},
913	#ifndef OPENSSL_NO_SRP
914	{"srpvfile", OPT_SRPVFILE, '<', "The verifier file for SRP"},
915	{"srpuserseed", OPT_SRPUSERSEED, 's',
916	"A seed string for a default user salt"},
917	#endif
918	#ifndef OPENSSL_NO_SSL3
919	{"ssl3", OPT_SSL3, '-', "Just talk SSLv3"},
920	#endif
921	#ifndef OPENSSL_NO_TLS1
922	{"tls1", OPT_TLS1, '-', "Just talk TLSv1"},
923	#endif
924	#ifndef OPENSSL_NO_TLS1_1
925	{"tls1_1", OPT_TLS1_1, '-', "Just talk TLSv1.1"},
926	#endif
927	#ifndef OPENSSL_NO_TLS1_2
928	{"tls1_2", OPT_TLS1_2, '-', "just talk TLSv1.2"},
929	#endif
930	#ifndef OPENSSL_NO_TLS1_3
931	{"tls1_3", OPT_TLS1_3, '-', "just talk TLSv1.3"},
932	#endif
933	#ifndef OPENSSL_NO_DTLS
934	{"dtls", OPT_DTLS, '-', "Use any DTLS version"},
935	{"timeout", OPT_TIMEOUT, '-', "Enable timeouts"},
936	{"mtu", OPT_MTU, 'p', "Set link layer MTU"},
937	{"listen", OPT_LISTEN, '-',
938	"Listen for a DTLS ClientHello with a cookie and then connect"},
939	#endif
940	{"stateless", OPT_STATELESS, '-', "Require TLSv1.3 cookies"},
941	#ifndef OPENSSL_NO_DTLS1
942	{"dtls1", OPT_DTLS1, '-', "Just talk DTLSv1"},
943	#endif
944	#ifndef OPENSSL_NO_DTLS1_2
945	{"dtls1_2", OPT_DTLS1_2, '-', "Just talk DTLSv1.2"},
946	#endif
947	#ifndef OPENSSL_NO_SCTP
948	{"sctp", OPT_SCTP, '-', "Use SCTP"},
949	{"sctp_label_bug", OPT_SCTP_LABEL_BUG, '-', "Enable SCTP label length bug"},
950	#endif
951	#ifndef OPENSSL_NO_DH
952	{"no_dhe", OPT_NO_DHE, '-', "Disable ephemeral DH"},
953	#endif
954	#ifndef OPENSSL_NO_NEXTPROTONEG
955	{"nextprotoneg", OPT_NEXTPROTONEG, 's',
956	"Set the advertised protocols for the NPN extension (comma-separated list)"},
957	#endif
958	#ifndef OPENSSL_NO_SRTP
959	{"use_srtp", OPT_SRTP_PROFILES, 's',
960	"Offer SRTP key management with a colon-separated profile list"},
961	#endif
962	{"alpn", OPT_ALPN, 's',
963	"Set the advertised protocols for the ALPN extension (comma-separated list)"},
964	#ifndef OPENSSL_NO_ENGINE
965	{"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"},
966	#endif
967	{"keylogfile", OPT_KEYLOG_FILE, '>', "Write TLS secrets to file"},
968	{"max_early_data", OPT_MAX_EARLY, 'n',
969	"The maximum number of bytes of early data as advertised in tickets"},
970	{"recv_max_early_data", OPT_RECV_MAX_EARLY, 'n',
971	"The maximum number of bytes of early data (hard limit)"},
972	{"early_data", OPT_EARLY_DATA, '-', "Attempt to read early data"},
973	{"num_tickets", OPT_S_NUM_TICKETS, 'n',
974	"The number of TLSv1.3 session tickets that a server will automatically issue" },
975	{"anti_replay", OPT_ANTI_REPLAY, '-', "Switch on anti-replay protection (default)"},
976	{"no_anti_replay", OPT_NO_ANTI_REPLAY, '-', "Switch off anti-replay protection"},
977	{NULL, OPT_EOF, 0, NULL}
978	};
979
980	#define IS_PROT_FLAG(o) \
981	(o == OPT_SSL3 \|\| o == OPT_TLS1 \|\| o == OPT_TLS1_1 \|\| o == OPT_TLS1_2 \
982	\|\| o == OPT_TLS1_3 \|\| o == OPT_DTLS \|\| o == OPT_DTLS1 \|\| o == OPT_DTLS1_2)
983
984	int s_server_main(int argc, char *argv[])
985	{
986	ENGINE *engine = NULL;
987	EVP_PKEY s_key = NULL, s_dkey = NULL;
988	SSL_CONF_CTX *cctx = NULL;
989	const SSL_METHOD *meth = TLS_server_method();
990	SSL_EXCERT *exc = NULL;
991	STACK_OF(OPENSSL_STRING) *ssl_args = NULL;
992	STACK_OF(X509) s_chain = NULL, s_dchain = NULL;
993	STACK_OF(X509_CRL) *crls = NULL;
994	X509 s_cert = NULL, s_dcert = NULL;
995	X509_VERIFY_PARAM *vpm = NULL;
996	const char CApath = NULL, CAfile = NULL, chCApath = NULL, chCAfile = NULL;
997	char dpassarg = NULL, dpass = NULL;
998	char passarg = NULL, pass = NULL, vfyCApath = NULL, vfyCAfile = NULL;
999	char crl_file = NULL, prog;
1000	#ifdef AF_UNIX
1001	int unlink_unix_path = 0;
1002	#endif
1003	do_server_cb server_cb;
1004	int vpmtouched = 0, build_chain = 0, no_cache = 0, ext_cache = 0;
1005	#ifndef OPENSSL_NO_DH
1006	char *dhfile = NULL;
1007	int no_dhe = 0;
1008	#endif
1009	int nocert = 0, ret = 1;
1010	int noCApath = 0, noCAfile = 0;
1011	int s_cert_format = FORMAT_PEM, s_key_format = FORMAT_PEM;
1012	int s_dcert_format = FORMAT_PEM, s_dkey_format = FORMAT_PEM;
1013	int rev = 0, naccept = -1, sdebug = 0;
1014	int socket_family = AF_UNSPEC, socket_type = SOCK_STREAM, protocol = 0;
1015	int state = 0, crl_format = FORMAT_PEM, crl_download = 0;
1016	char *host = NULL;
1017	char *port = BUF_strdup(PORT);
1018	unsigned char *context = NULL;
1019	OPTION_CHOICE o;
1020	EVP_PKEY *s_key2 = NULL;
1021	X509 *s_cert2 = NULL;
1022	tlsextctx tlsextcbp = { NULL, NULL, SSL_TLSEXT_ERR_ALERT_WARNING };
1023	const char *ssl_config = NULL;
1024	int read_buf_len = 0;
1025	#ifndef OPENSSL_NO_NEXTPROTONEG
1026	const char *next_proto_neg_in = NULL;
1027	tlsextnextprotoctx next_proto = { NULL, 0 };
1028	#endif
1029	const char *alpn_in = NULL;
1030	tlsextalpnctx alpn_ctx = { NULL, 0 };
1031	#ifndef OPENSSL_NO_PSK
1032	/* by default do not send a PSK identity hint */
1033	char *psk_identity_hint = NULL;
1034	#endif
1035	char *p;
1036	#ifndef OPENSSL_NO_SRP
1037	char *srpuserseed = NULL;
1038	char *srp_verifier_file = NULL;
1039	#endif
1040	#ifndef OPENSSL_NO_SRTP
1041	char *srtp_profiles = NULL;
1042	#endif
1043	int min_version = 0, max_version = 0, prot_opt = 0, no_prot_opt = 0;
1044	int s_server_verify = SSL_VERIFY_NONE;
1045	int s_server_session_id_context = 1; /* anything will do */
1046	const char s_cert_file = TEST_CERT, s_key_file = NULL, *s_chain_file = NULL;
1047	const char s_cert_file2 = TEST_CERT2, s_key_file2 = NULL;
1048	char s_dcert_file = NULL, s_dkey_file = NULL, *s_dchain_file = NULL;
1049	#ifndef OPENSSL_NO_OCSP
1050	int s_tlsextstatus = 0;
1051	#endif
1052	int no_resume_ephemeral = 0;
1053	unsigned int max_send_fragment = 0;
1054	unsigned int split_send_fragment = 0, max_pipelines = 0;
1055	const char *s_serverinfo_file = NULL;
1056	const char *keylog_file = NULL;
1057	int max_early_data = -1, recv_max_early_data = -1;
1058	char *psksessf = NULL;
1059	#ifndef OPENSSL_NO_SCTP
1060	int sctp_label_bug = 0;
1061	#endif
1062
1063	/* Init of few remaining global variables */
1064	local_argc = argc;
1065	local_argv = argv;
1066
1067	ctx = ctx2 = NULL;
1068	s_nbio = s_nbio_test = 0;
1069	www = 0;
1070	bio_s_out = NULL;
1071	s_debug = 0;
1072	s_msg = 0;
1073	s_quiet = 0;
1074	s_brief = 0;
1075	async = 0;
1076
1077	cctx = SSL_CONF_CTX_new();
1078	vpm = X509_VERIFY_PARAM_new();
1079	if (cctx == NULL \|\| vpm == NULL)
1080	goto end;
1081	SSL_CONF_CTX_set_flags(cctx,
1082	SSL_CONF_FLAG_SERVER \| SSL_CONF_FLAG_CMDLINE);
1083
1084	prog = opt_init(argc, argv, s_server_options);
1085	while ((o = opt_next()) != OPT_EOF) {
1086	if (IS_PROT_FLAG(o) && ++prot_opt > 1) {
1087	BIO_printf(bio_err, "Cannot supply multiple protocol flags\n");
1088	goto end;
1089	}
1090	if (IS_NO_PROT_FLAG(o))
1091	no_prot_opt++;
1092	if (prot_opt == 1 && no_prot_opt) {
1093	BIO_printf(bio_err,
1094	"Cannot supply both a protocol flag and '-no_<prot>'\n");
1095	goto end;
1096	}
1097	switch (o) {
1098	case OPT_EOF:
1099	case OPT_ERR:
1100	opthelp:
1101	BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
1102	goto end;
1103	case OPT_HELP:
1104	opt_help(s_server_options);
1105	ret = 0;
1106	goto end;
1107
1108	case OPT_4:
1109	#ifdef AF_UNIX
1110	if (socket_family == AF_UNIX) {
1111	OPENSSL_free(host); host = NULL;
1112	OPENSSL_free(port); port = NULL;
1113	}
1114	#endif
1115	socket_family = AF_INET;
1116	break;
1117	case OPT_6:
1118	if (1) {
1119	#ifdef AF_INET6
1120	#ifdef AF_UNIX
1121	if (socket_family == AF_UNIX) {
1122	OPENSSL_free(host); host = NULL;
1123	OPENSSL_free(port); port = NULL;
1124	}
1125	#endif
1126	socket_family = AF_INET6;
1127	} else {
1128	#endif
1129	BIO_printf(bio_err, "%s: IPv6 domain sockets unsupported\n", prog);
1130	goto end;
1131	}
1132	break;
1133	case OPT_PORT:
1134	#ifdef AF_UNIX
1135	if (socket_family == AF_UNIX) {
1136	socket_family = AF_UNSPEC;
1137	}
1138	#endif
1139	OPENSSL_free(port); port = NULL;
1140	OPENSSL_free(host); host = NULL;
1141	if (BIO_parse_hostserv(opt_arg(), NULL, &port, BIO_PARSE_PRIO_SERV) < 1) {
1142	BIO_printf(bio_err,
1143	"%s: -port argument malformed or ambiguous\n",
1144	port);
1145	goto end;
1146	}
1147	break;
1148	case OPT_ACCEPT:
1149	#ifdef AF_UNIX
1150	if (socket_family == AF_UNIX) {
1151	socket_family = AF_UNSPEC;
1152	}
1153	#endif
1154	OPENSSL_free(port); port = NULL;
1155	OPENSSL_free(host); host = NULL;
1156	if (BIO_parse_hostserv(opt_arg(), &host, &port, BIO_PARSE_PRIO_SERV) < 1) {
1157	BIO_printf(bio_err,
1158	"%s: -accept argument malformed or ambiguous\n",
1159	port);
1160	goto end;
1161	}
1162	break;
1163	#ifdef AF_UNIX
1164	case OPT_UNIX:
1165	socket_family = AF_UNIX;
1166	OPENSSL_free(host); host = BUF_strdup(opt_arg());
1167	OPENSSL_free(port); port = NULL;
1168	break;
1169	case OPT_UNLINK:
1170	unlink_unix_path = 1;
1171	break;
1172	#endif
1173	case OPT_NACCEPT:
1174	naccept = atol(opt_arg());
1175	break;
1176	case OPT_VERIFY:
1177	s_server_verify = SSL_VERIFY_PEER \| SSL_VERIFY_CLIENT_ONCE;
1178	verify_args.depth = atoi(opt_arg());
1179	if (!s_quiet)
1180	BIO_printf(bio_err, "verify depth is %d\n", verify_args.depth);
1181	break;
1182	case OPT_UPPER_V_VERIFY:
1183	s_server_verify =
1184	SSL_VERIFY_PEER \| SSL_VERIFY_FAIL_IF_NO_PEER_CERT \|
1185	SSL_VERIFY_CLIENT_ONCE;
1186	verify_args.depth = atoi(opt_arg());
1187	if (!s_quiet)
1188	BIO_printf(bio_err,
1189	"verify depth is %d, must return a certificate\n",
1190	verify_args.depth);
1191	break;
1192	case OPT_CONTEXT:
1193	context = (unsigned char *)opt_arg();
1194	break;
1195	case OPT_CERT:
1196	s_cert_file = opt_arg();
1197	break;
1198	case OPT_NAMEOPT:
1199	if (!set_nameopt(opt_arg()))
1200	goto end;
1201	break;
1202	case OPT_CRL:
1203	crl_file = opt_arg();
1204	break;
1205	case OPT_CRL_DOWNLOAD:
1206	crl_download = 1;
1207	break;
1208	case OPT_SERVERINFO:
1209	s_serverinfo_file = opt_arg();
1210	break;
1211	case OPT_CERTFORM:
1212	if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &s_cert_format))
1213	goto opthelp;
1214	break;
1215	case OPT_KEY:
1216	s_key_file = opt_arg();
1217	break;
1218	case OPT_KEYFORM:
1219	if (!opt_format(opt_arg(), OPT_FMT_ANY, &s_key_format))
1220	goto opthelp;
1221	break;
1222	case OPT_PASS:
1223	passarg = opt_arg();
1224	break;
1225	case OPT_CERT_CHAIN:
1226	s_chain_file = opt_arg();
1227	break;
1228	case OPT_DHPARAM:
1229	#ifndef OPENSSL_NO_DH
1230	dhfile = opt_arg();
1231	#endif
1232	break;
1233	case OPT_DCERTFORM:
1234	if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &s_dcert_format))
1235	goto opthelp;
1236	break;
1237	case OPT_DCERT:
1238	s_dcert_file = opt_arg();
1239	break;
1240	case OPT_DKEYFORM:
1241	if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &s_dkey_format))
1242	goto opthelp;
1243	break;
1244	case OPT_DPASS:
1245	dpassarg = opt_arg();
1246	break;
1247	case OPT_DKEY:
1248	s_dkey_file = opt_arg();
1249	break;
1250	case OPT_DCERT_CHAIN:
1251	s_dchain_file = opt_arg();
1252	break;
1253	case OPT_NOCERT:
1254	nocert = 1;
1255	break;
1256	case OPT_CAPATH:
1257	CApath = opt_arg();
1258	break;
1259	case OPT_NOCAPATH:
1260	noCApath = 1;
1261	break;
1262	case OPT_CHAINCAPATH:
1263	chCApath = opt_arg();
1264	break;
1265	case OPT_VERIFYCAPATH:
1266	vfyCApath = opt_arg();
1267	break;
1268	case OPT_NO_CACHE:
1269	no_cache = 1;
1270	break;
1271	case OPT_EXT_CACHE:
1272	ext_cache = 1;
1273	break;
1274	case OPT_CRLFORM:
1275	if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &crl_format))
1276	goto opthelp;
1277	break;
1278	case OPT_S_CASES:
1279	case OPT_S_NUM_TICKETS:
1280	case OPT_ANTI_REPLAY:
1281	case OPT_NO_ANTI_REPLAY:
1282	if (ssl_args == NULL)
1283	ssl_args = sk_OPENSSL_STRING_new_null();
1284	if (ssl_args == NULL
1285	\|\| !sk_OPENSSL_STRING_push(ssl_args, opt_flag())
1286	\|\| !sk_OPENSSL_STRING_push(ssl_args, opt_arg())) {
1287	BIO_printf(bio_err, "%s: Memory allocation failure\n", prog);
1288	goto end;
1289	}
1290	break;
1291	case OPT_V_CASES:
1292	if (!opt_verify(o, vpm))
1293	goto end;
1294	vpmtouched++;
1295	break;
1296	case OPT_X_CASES:
1297	if (!args_excert(o, &exc))
1298	goto end;
1299	break;
1300	case OPT_VERIFY_RET_ERROR:
1301	verify_args.return_error = 1;
1302	break;
1303	case OPT_VERIFY_QUIET:
1304	verify_args.quiet = 1;
1305	break;
1306	case OPT_BUILD_CHAIN:
1307	build_chain = 1;
1308	break;
1309	case OPT_CAFILE:
1310	CAfile = opt_arg();
1311	break;
1312	case OPT_NOCAFILE:
1313	noCAfile = 1;
1314	break;
1315	case OPT_CHAINCAFILE:
1316	chCAfile = opt_arg();
1317	break;
1318	case OPT_VERIFYCAFILE:
1319	vfyCAfile = opt_arg();
1320	break;
1321	case OPT_NBIO:
1322	s_nbio = 1;
1323	break;
1324	case OPT_NBIO_TEST:
1325	s_nbio = s_nbio_test = 1;
1326	break;
1327	case OPT_IGN_EOF:
1328	s_ign_eof = 1;
1329	break;
1330	case OPT_NO_IGN_EOF:
1331	s_ign_eof = 0;
1332	break;
1333	case OPT_DEBUG:
1334	s_debug = 1;
1335	break;
1336	case OPT_TLSEXTDEBUG:
1337	s_tlsextdebug = 1;
1338	break;
1339	case OPT_STATUS:
1340	#ifndef OPENSSL_NO_OCSP
1341	s_tlsextstatus = 1;
1342	#endif
1343	break;
1344	case OPT_STATUS_VERBOSE:
1345	#ifndef OPENSSL_NO_OCSP
1346	s_tlsextstatus = tlscstatp.verbose = 1;
1347	#endif
1348	break;
1349	case OPT_STATUS_TIMEOUT:
1350	#ifndef OPENSSL_NO_OCSP
1351	s_tlsextstatus = 1;
1352	tlscstatp.timeout = atoi(opt_arg());
1353	#endif
1354	break;
1355	case OPT_STATUS_URL:
1356	#ifndef OPENSSL_NO_OCSP
1357	s_tlsextstatus = 1;
1358	if (!OCSP_parse_url(opt_arg(),
1359	&tlscstatp.host,
1360	&tlscstatp.port,
1361	&tlscstatp.path, &tlscstatp.use_ssl)) {
1362	BIO_printf(bio_err, "Error parsing URL\n");
1363	goto end;
1364	}
1365	#endif
1366	break;
1367	case OPT_STATUS_FILE:
1368	#ifndef OPENSSL_NO_OCSP
1369	s_tlsextstatus = 1;
1370	tlscstatp.respin = opt_arg();
1371	#endif
1372	break;
1373	case OPT_MSG:
1374	s_msg = 1;
1375	break;
1376	case OPT_MSGFILE:
1377	bio_s_msg = BIO_new_file(opt_arg(), "w");
1378	break;
1379	case OPT_TRACE:
1380	#ifndef OPENSSL_NO_SSL_TRACE
1381	s_msg = 2;
1382	#endif
1383	break;
1384	case OPT_SECURITY_DEBUG:
1385	sdebug = 1;
1386	break;
1387	case OPT_SECURITY_DEBUG_VERBOSE:
1388	sdebug = 2;
1389	break;
1390	case OPT_STATE:
1391	state = 1;
1392	break;
1393	case OPT_CRLF:
1394	s_crlf = 1;
1395	break;
1396	case OPT_QUIET:
1397	s_quiet = 1;
1398	break;
1399	case OPT_BRIEF:
1400	s_quiet = s_brief = verify_args.quiet = 1;
1401	break;
1402	case OPT_NO_DHE:
1403	#ifndef OPENSSL_NO_DH
1404	no_dhe = 1;
1405	#endif
1406	break;
1407	case OPT_NO_RESUME_EPHEMERAL:
1408	no_resume_ephemeral = 1;
1409	break;
1410	case OPT_PSK_IDENTITY:
1411	psk_identity = opt_arg();
1412	break;
1413	case OPT_PSK_HINT:
1414	#ifndef OPENSSL_NO_PSK
1415	psk_identity_hint = opt_arg();
1416	#endif
1417	break;
1418	case OPT_PSK:
1419	for (p = psk_key = opt_arg(); *p; p++) {
1420	if (isxdigit(_UC(*p)))
1421	continue;
1422	BIO_printf(bio_err, "Not a hex number '%s'\n", psk_key);
1423	goto end;
1424	}
1425	break;
1426	case OPT_PSK_SESS:
1427	psksessf = opt_arg();
1428	break;
1429	case OPT_SRPVFILE:
1430	#ifndef OPENSSL_NO_SRP
1431	srp_verifier_file = opt_arg();
1432	if (min_version < TLS1_VERSION)
1433	min_version = TLS1_VERSION;
1434	#endif
1435	break;
1436	case OPT_SRPUSERSEED:
1437	#ifndef OPENSSL_NO_SRP
1438	srpuserseed = opt_arg();
1439	if (min_version < TLS1_VERSION)
1440	min_version = TLS1_VERSION;
1441	#endif
1442	break;
1443	case OPT_REV:
1444	rev = 1;
1445	break;
1446	case OPT_WWW:
1447	www = 1;
1448	break;
1449	case OPT_UPPER_WWW:
1450	www = 2;
1451	break;
1452	case OPT_HTTP:
1453	www = 3;
1454	break;
1455	case OPT_SSL_CONFIG:
1456	ssl_config = opt_arg();
1457	break;
1458	case OPT_SSL3:
1459	min_version = SSL3_VERSION;
1460	max_version = SSL3_VERSION;
1461	break;
1462	case OPT_TLS1_3:
1463	min_version = TLS1_3_VERSION;
1464	max_version = TLS1_3_VERSION;
1465	break;
1466	case OPT_TLS1_2:
1467	min_version = TLS1_2_VERSION;
1468	max_version = TLS1_2_VERSION;
1469	break;
1470	case OPT_TLS1_1:
1471	min_version = TLS1_1_VERSION;
1472	max_version = TLS1_1_VERSION;
1473	break;
1474	case OPT_TLS1:
1475	min_version = TLS1_VERSION;
1476	max_version = TLS1_VERSION;
1477	break;
1478	case OPT_DTLS:
1479	#ifndef OPENSSL_NO_DTLS
1480	meth = DTLS_server_method();
1481	socket_type = SOCK_DGRAM;
1482	#endif
1483	break;
1484	case OPT_DTLS1:
1485	#ifndef OPENSSL_NO_DTLS
1486	meth = DTLS_server_method();
1487	min_version = DTLS1_VERSION;
1488	max_version = DTLS1_VERSION;
1489	socket_type = SOCK_DGRAM;
1490	#endif
1491	break;
1492	case OPT_DTLS1_2:
1493	#ifndef OPENSSL_NO_DTLS
1494	meth = DTLS_server_method();
1495	min_version = DTLS1_2_VERSION;
1496	max_version = DTLS1_2_VERSION;
1497	socket_type = SOCK_DGRAM;
1498	#endif
1499	break;
1500	case OPT_SCTP:
1501	#ifndef OPENSSL_NO_SCTP
1502	protocol = IPPROTO_SCTP;
1503	#endif
1504	break;
1505	case OPT_SCTP_LABEL_BUG:
1506	#ifndef OPENSSL_NO_SCTP
1507	sctp_label_bug = 1;
1508	#endif
1509	break;
1510	case OPT_TIMEOUT:
1511	#ifndef OPENSSL_NO_DTLS
1512	enable_timeouts = 1;
1513	#endif
1514	break;
1515	case OPT_MTU:
1516	#ifndef OPENSSL_NO_DTLS
1517	socket_mtu = atol(opt_arg());
1518	#endif
1519	break;
1520	case OPT_LISTEN:
1521	#ifndef OPENSSL_NO_DTLS
1522	dtlslisten = 1;
1523	#endif
1524	break;
1525	case OPT_STATELESS:
1526	stateless = 1;
1527	break;
1528	case OPT_ID_PREFIX:
1529	session_id_prefix = opt_arg();
1530	break;
1531	case OPT_ENGINE:
1532	engine = setup_engine(opt_arg(), 1);
1533	break;
1534	case OPT_R_CASES:
1535	if (!opt_rand(o))
1536	goto end;
1537	break;
1538	case OPT_SERVERNAME:
1539	tlsextcbp.servername = opt_arg();
1540	break;
1541	case OPT_SERVERNAME_FATAL:
1542	tlsextcbp.extension_error = SSL_TLSEXT_ERR_ALERT_FATAL;
1543	break;
1544	case OPT_CERT2:
1545	s_cert_file2 = opt_arg();
1546	break;
1547	case OPT_KEY2:
1548	s_key_file2 = opt_arg();
1549	break;
1550	case OPT_NEXTPROTONEG:
1551	# ifndef OPENSSL_NO_NEXTPROTONEG
1552	next_proto_neg_in = opt_arg();
1553	#endif
1554	break;
1555	case OPT_ALPN:
1556	alpn_in = opt_arg();
1557	break;
1558	case OPT_SRTP_PROFILES:
1559	#ifndef OPENSSL_NO_SRTP
1560	srtp_profiles = opt_arg();
1561	#endif
1562	break;
1563	case OPT_KEYMATEXPORT:
1564	keymatexportlabel = opt_arg();
1565	break;
1566	case OPT_KEYMATEXPORTLEN:
1567	keymatexportlen = atoi(opt_arg());
1568	break;
1569	case OPT_ASYNC:
1570	async = 1;
1571	break;
1572	case OPT_MAX_SEND_FRAG:
1573	max_send_fragment = atoi(opt_arg());
1574	break;
1575	case OPT_SPLIT_SEND_FRAG:
1576	split_send_fragment = atoi(opt_arg());
1577	break;
1578	case OPT_MAX_PIPELINES:
1579	max_pipelines = atoi(opt_arg());
1580	break;
1581	case OPT_READ_BUF:
1582	read_buf_len = atoi(opt_arg());
1583	break;
1584	case OPT_KEYLOG_FILE:
1585	keylog_file = opt_arg();
1586	break;
1587	case OPT_MAX_EARLY:
1588	max_early_data = atoi(opt_arg());
1589	if (max_early_data < 0) {
1590	BIO_printf(bio_err, "Invalid value for max_early_data\n");
1591	goto end;
1592	}
1593	break;
1594	case OPT_RECV_MAX_EARLY:
1595	recv_max_early_data = atoi(opt_arg());
1596	if (recv_max_early_data < 0) {
1597	BIO_printf(bio_err, "Invalid value for recv_max_early_data\n");
1598	goto end;
1599	}
1600	break;
1601	case OPT_EARLY_DATA:
1602	early_data = 1;
1603	if (max_early_data == -1)
1604	max_early_data = SSL3_RT_MAX_PLAIN_LENGTH;
1605	break;
1606	}
1607	}
1608	argc = opt_num_rest();
1609	argv = opt_rest();
1610
1611	#ifndef OPENSSL_NO_NEXTPROTONEG
1612	if (min_version == TLS1_3_VERSION && next_proto_neg_in != NULL) {
1613	BIO_printf(bio_err, "Cannot supply -nextprotoneg with TLSv1.3\n");
1614	goto opthelp;
1615	}
1616	#endif
1617	#ifndef OPENSSL_NO_DTLS
1618	if (www && socket_type == SOCK_DGRAM) {
1619	BIO_printf(bio_err, "Can't use -HTTP, -www or -WWW with DTLS\n");
1620	goto end;
1621	}
1622
1623	if (dtlslisten && socket_type != SOCK_DGRAM) {
1624	BIO_printf(bio_err, "Can only use -listen with DTLS\n");
1625	goto end;
1626	}
1627	#endif
1628
1629	if (stateless && socket_type != SOCK_STREAM) {
1630	BIO_printf(bio_err, "Can only use --stateless with TLS\n");
1631	goto end;
1632	}
1633
1634	#ifdef AF_UNIX
1635	if (socket_family == AF_UNIX && socket_type != SOCK_STREAM) {
1636	BIO_printf(bio_err,
1637	"Can't use unix sockets and datagrams together\n");
1638	goto end;
1639	}
1640	#endif
1641	if (early_data && (www > 0 \|\| rev)) {
1642	BIO_printf(bio_err,
1643	"Can't use -early_data in combination with -www, -WWW, -HTTP, or -rev\n");
1644	goto end;
1645	}
1646
1647	#ifndef OPENSSL_NO_SCTP
1648	if (protocol == IPPROTO_SCTP) {
1649	if (socket_type != SOCK_DGRAM) {
1650	BIO_printf(bio_err, "Can't use -sctp without DTLS\n");
1651	goto end;
1652	}
1653	/* SCTP is unusual. It uses DTLS over a SOCK_STREAM protocol */
1654	socket_type = SOCK_STREAM;
1655	}
1656	#endif
1657
1658	if (!app_passwd(passarg, dpassarg, &pass, &dpass)) {
1659	BIO_printf(bio_err, "Error getting password\n");
1660	goto end;
1661	}
1662
1663	if (s_key_file == NULL)
1664	s_key_file = s_cert_file;
1665
1666	if (s_key_file2 == NULL)
1667	s_key_file2 = s_cert_file2;
1668
1669	if (!load_excert(&exc))
1670	goto end;
1671
1672	if (nocert == 0) {
1673	s_key = load_key(s_key_file, s_key_format, 0, pass, engine,
1674	"server certificate private key file");
1675	if (s_key == NULL) {
1676	ERR_print_errors(bio_err);
1677	goto end;
1678	}
1679
1680	s_cert = load_cert(s_cert_file, s_cert_format,
1681	"server certificate file");
1682
1683	if (s_cert == NULL) {
1684	ERR_print_errors(bio_err);
1685	goto end;
1686	}
1687	if (s_chain_file != NULL) {
1688	if (!load_certs(s_chain_file, &s_chain, FORMAT_PEM, NULL,
1689	"server certificate chain"))
1690	goto end;
1691	}
1692
1693	if (tlsextcbp.servername != NULL) {
1694	s_key2 = load_key(s_key_file2, s_key_format, 0, pass, engine,
1695	"second server certificate private key file");
1696	if (s_key2 == NULL) {
1697	ERR_print_errors(bio_err);
1698	goto end;
1699	}
1700
1701	s_cert2 = load_cert(s_cert_file2, s_cert_format,
1702	"second server certificate file");
1703
1704	if (s_cert2 == NULL) {
1705	ERR_print_errors(bio_err);
1706	goto end;
1707	}
1708	}
1709	}
1710	#if !defined(OPENSSL_NO_NEXTPROTONEG)
1711	if (next_proto_neg_in) {
1712	next_proto.data = next_protos_parse(&next_proto.len, next_proto_neg_in);
1713	if (next_proto.data == NULL)
1714	goto end;
1715	}
1716	#endif
1717	alpn_ctx.data = NULL;
1718	if (alpn_in) {
1719	alpn_ctx.data = next_protos_parse(&alpn_ctx.len, alpn_in);
1720	if (alpn_ctx.data == NULL)
1721	goto end;
1722	}
1723
1724	if (crl_file != NULL) {
1725	X509_CRL *crl;
1726	crl = load_crl(crl_file, crl_format);
1727	if (crl == NULL) {
1728	BIO_puts(bio_err, "Error loading CRL\n");
1729	ERR_print_errors(bio_err);
1730	goto end;
1731	}
1732	crls = sk_X509_CRL_new_null();
1733	if (crls == NULL \|\| !sk_X509_CRL_push(crls, crl)) {
1734	BIO_puts(bio_err, "Error adding CRL\n");
1735	ERR_print_errors(bio_err);
1736	X509_CRL_free(crl);
1737	goto end;
1738	}
1739	}
1740
1741	if (s_dcert_file != NULL) {
1742
1743	if (s_dkey_file == NULL)
1744	s_dkey_file = s_dcert_file;
1745
1746	s_dkey = load_key(s_dkey_file, s_dkey_format,
1747	0, dpass, engine, "second certificate private key file");
1748	if (s_dkey == NULL) {
1749	ERR_print_errors(bio_err);
1750	goto end;
1751	}
1752
1753	s_dcert = load_cert(s_dcert_file, s_dcert_format,
1754	"second server certificate file");
1755
1756	if (s_dcert == NULL) {
1757	ERR_print_errors(bio_err);
1758	goto end;
1759	}
1760	if (s_dchain_file != NULL) {
1761	if (!load_certs(s_dchain_file, &s_dchain, FORMAT_PEM, NULL,
1762	"second server certificate chain"))
1763	goto end;
1764	}
1765
1766	}
1767
1768	if (bio_s_out == NULL) {
1769	if (s_quiet && !s_debug) {
1770	bio_s_out = BIO_new(BIO_s_null());
1771	if (s_msg && bio_s_msg == NULL)
1772	bio_s_msg = dup_bio_out(FORMAT_TEXT);
1773	} else {
1774	if (bio_s_out == NULL)
1775	bio_s_out = dup_bio_out(FORMAT_TEXT);
1776	}
1777	}
1778	#if !defined(OPENSSL_NO_RSA) \|\| !defined(OPENSSL_NO_DSA) \|\| !defined(OPENSSL_NO_EC)
1779	if (nocert)
1780	#endif
1781	{
1782	s_cert_file = NULL;
1783	s_key_file = NULL;
1784	s_dcert_file = NULL;
1785	s_dkey_file = NULL;
1786	s_cert_file2 = NULL;
1787	s_key_file2 = NULL;
1788	}
1789
1790	ctx = SSL_CTX_new(meth);
1791	if (ctx == NULL) {
1792	ERR_print_errors(bio_err);
1793	goto end;
1794	}
1795
1796	SSL_CTX_clear_mode(ctx, SSL_MODE_AUTO_RETRY);
1797
1798	if (sdebug)
1799	ssl_ctx_security_debug(ctx, sdebug);
1800
1801	if (!config_ctx(cctx, ssl_args, ctx))
1802	goto end;
1803
1804	if (ssl_config) {
1805	if (SSL_CTX_config(ctx, ssl_config) == 0) {
1806	BIO_printf(bio_err, "Error using configuration \"%s\"\n",
1807	ssl_config);
1808	ERR_print_errors(bio_err);
1809	goto end;
1810	}
1811	}
1812
1813	#ifndef OPENSSL_NO_SCTP
1814	if (protocol == IPPROTO_SCTP && sctp_label_bug == 1)
1815	SSL_CTX_set_mode(ctx, SSL_MODE_DTLS_SCTP_LABEL_LENGTH_BUG);
1816	#endif
1817
1818	if (min_version != 0
1819	&& SSL_CTX_set_min_proto_version(ctx, min_version) == 0)
1820	goto end;
1821	if (max_version != 0
1822	&& SSL_CTX_set_max_proto_version(ctx, max_version) == 0)
1823	goto end;
1824
1825	if (session_id_prefix) {
1826	if (strlen(session_id_prefix) >= 32)
1827	BIO_printf(bio_err,
1828	"warning: id_prefix is too long, only one new session will be possible\n");
1829	if (!SSL_CTX_set_generate_session_id(ctx, generate_session_id)) {
1830	BIO_printf(bio_err, "error setting 'id_prefix'\n");
1831	ERR_print_errors(bio_err);
1832	goto end;
1833	}
1834	BIO_printf(bio_err, "id_prefix '%s' set.\n", session_id_prefix);
1835	}
1836	SSL_CTX_set_quiet_shutdown(ctx, 1);
1837	if (exc != NULL)
1838	ssl_ctx_set_excert(ctx, exc);
1839
1840	if (state)
1841	SSL_CTX_set_info_callback(ctx, apps_ssl_info_callback);
1842	if (no_cache)
1843	SSL_CTX_set_session_cache_mode(ctx, SSL_SESS_CACHE_OFF);
1844	else if (ext_cache)
1845	init_session_cache_ctx(ctx);
1846	else
1847	SSL_CTX_sess_set_cache_size(ctx, 128);
1848
1849	if (async) {
1850	SSL_CTX_set_mode(ctx, SSL_MODE_ASYNC);
1851	}
1852
1853	if (max_send_fragment > 0
1854	&& !SSL_CTX_set_max_send_fragment(ctx, max_send_fragment)) {
1855	BIO_printf(bio_err, "%s: Max send fragment size %u is out of permitted range\n",
1856	prog, max_send_fragment);
1857	goto end;
1858	}
1859
1860	if (split_send_fragment > 0
1861	&& !SSL_CTX_set_split_send_fragment(ctx, split_send_fragment)) {
1862	BIO_printf(bio_err, "%s: Split send fragment size %u is out of permitted range\n",
1863	prog, split_send_fragment);
1864	goto end;
1865	}
1866	if (max_pipelines > 0
1867	&& !SSL_CTX_set_max_pipelines(ctx, max_pipelines)) {
1868	BIO_printf(bio_err, "%s: Max pipelines %u is out of permitted range\n",
1869	prog, max_pipelines);
1870	goto end;
1871	}
1872
1873	if (read_buf_len > 0) {
1874	SSL_CTX_set_default_read_buffer_len(ctx, read_buf_len);
1875	}
1876	#ifndef OPENSSL_NO_SRTP
1877	if (srtp_profiles != NULL) {
1878	/* Returns 0 on success! */
1879	if (SSL_CTX_set_tlsext_use_srtp(ctx, srtp_profiles) != 0) {
1880	BIO_printf(bio_err, "Error setting SRTP profile\n");
1881	ERR_print_errors(bio_err);
1882	goto end;
1883	}
1884	}
1885	#endif
1886
1887	if (!ctx_set_verify_locations(ctx, CAfile, CApath, noCAfile, noCApath)) {
1888	ERR_print_errors(bio_err);
1889	goto end;
1890	}
1891	if (vpmtouched && !SSL_CTX_set1_param(ctx, vpm)) {
1892	BIO_printf(bio_err, "Error setting verify params\n");
1893	ERR_print_errors(bio_err);
1894	goto end;
1895	}
1896
1897	ssl_ctx_add_crls(ctx, crls, 0);
1898
1899	if (!ssl_load_stores(ctx, vfyCApath, vfyCAfile, chCApath, chCAfile,
1900	crls, crl_download)) {
1901	BIO_printf(bio_err, "Error loading store locations\n");
1902	ERR_print_errors(bio_err);
1903	goto end;
1904	}
1905
1906	if (s_cert2) {
1907	ctx2 = SSL_CTX_new(meth);
1908	if (ctx2 == NULL) {
1909	ERR_print_errors(bio_err);
1910	goto end;
1911	}
1912	}
1913
1914	if (ctx2 != NULL) {
1915	BIO_printf(bio_s_out, "Setting secondary ctx parameters\n");
1916
1917	if (sdebug)
1918	ssl_ctx_security_debug(ctx2, sdebug);
1919
1920	if (session_id_prefix) {
1921	if (strlen(session_id_prefix) >= 32)
1922	BIO_printf(bio_err,
1923	"warning: id_prefix is too long, only one new session will be possible\n");
1924	if (!SSL_CTX_set_generate_session_id(ctx2, generate_session_id)) {
1925	BIO_printf(bio_err, "error setting 'id_prefix'\n");
1926	ERR_print_errors(bio_err);
1927	goto end;
1928	}
1929	BIO_printf(bio_err, "id_prefix '%s' set.\n", session_id_prefix);
1930	}
1931	SSL_CTX_set_quiet_shutdown(ctx2, 1);
1932	if (exc != NULL)
1933	ssl_ctx_set_excert(ctx2, exc);
1934
1935	if (state)
1936	SSL_CTX_set_info_callback(ctx2, apps_ssl_info_callback);
1937
1938	if (no_cache)
1939	SSL_CTX_set_session_cache_mode(ctx2, SSL_SESS_CACHE_OFF);
1940	else if (ext_cache)
1941	init_session_cache_ctx(ctx2);
1942	else
1943	SSL_CTX_sess_set_cache_size(ctx2, 128);
1944
1945	if (async)
1946	SSL_CTX_set_mode(ctx2, SSL_MODE_ASYNC);
1947
1948	if (!ctx_set_verify_locations(ctx2, CAfile, CApath, noCAfile,
1949	noCApath)) {
1950	ERR_print_errors(bio_err);
1951	goto end;
1952	}
1953	if (vpmtouched && !SSL_CTX_set1_param(ctx2, vpm)) {
1954	BIO_printf(bio_err, "Error setting verify params\n");
1955	ERR_print_errors(bio_err);
1956	goto end;
1957	}
1958
1959	ssl_ctx_add_crls(ctx2, crls, 0);
1960	if (!config_ctx(cctx, ssl_args, ctx2))
1961	goto end;
1962	}
1963	#ifndef OPENSSL_NO_NEXTPROTONEG
1964	if (next_proto.data)
1965	SSL_CTX_set_next_protos_advertised_cb(ctx, next_proto_cb,
1966	&next_proto);
1967	#endif
1968	if (alpn_ctx.data)
1969	SSL_CTX_set_alpn_select_cb(ctx, alpn_cb, &alpn_ctx);
1970
1971	#ifndef OPENSSL_NO_DH
1972	if (!no_dhe) {
1973	DH *dh = NULL;
1974
1975	if (dhfile != NULL)
1976	dh = load_dh_param(dhfile);
1977	else if (s_cert_file != NULL)
1978	dh = load_dh_param(s_cert_file);
1979
1980	if (dh != NULL) {
1981	BIO_printf(bio_s_out, "Setting temp DH parameters\n");
1982	} else {
1983	BIO_printf(bio_s_out, "Using default temp DH parameters\n");
1984	}
1985	(void)BIO_flush(bio_s_out);
1986
1987	if (dh == NULL) {
1988	SSL_CTX_set_dh_auto(ctx, 1);
1989	} else if (!SSL_CTX_set_tmp_dh(ctx, dh)) {
1990	BIO_puts(bio_err, "Error setting temp DH parameters\n");
1991	ERR_print_errors(bio_err);
1992	DH_free(dh);
1993	goto end;
1994	}
1995
1996	if (ctx2 != NULL) {
1997	if (!dhfile) {
1998	DH *dh2 = load_dh_param(s_cert_file2);
1999	if (dh2 != NULL) {
2000	BIO_printf(bio_s_out, "Setting temp DH parameters\n");
2001	(void)BIO_flush(bio_s_out);
2002
2003	DH_free(dh);
2004	dh = dh2;
2005	}
2006	}
2007	if (dh == NULL) {
2008	SSL_CTX_set_dh_auto(ctx2, 1);
2009	} else if (!SSL_CTX_set_tmp_dh(ctx2, dh)) {
2010	BIO_puts(bio_err, "Error setting temp DH parameters\n");
2011	ERR_print_errors(bio_err);
2012	DH_free(dh);
2013	goto end;
2014	}
2015	}
2016	DH_free(dh);
2017	}
2018	#endif
2019
2020	if (!set_cert_key_stuff(ctx, s_cert, s_key, s_chain, build_chain))
2021	goto end;
2022
2023	if (s_serverinfo_file != NULL
2024	&& !SSL_CTX_use_serverinfo_file(ctx, s_serverinfo_file)) {
2025	ERR_print_errors(bio_err);
2026	goto end;
2027	}
2028
2029	if (ctx2 != NULL
2030	&& !set_cert_key_stuff(ctx2, s_cert2, s_key2, NULL, build_chain))
2031	goto end;
2032
2033	if (s_dcert != NULL) {
2034	if (!set_cert_key_stuff(ctx, s_dcert, s_dkey, s_dchain, build_chain))
2035	goto end;
2036	}
2037
2038	if (no_resume_ephemeral) {
2039	SSL_CTX_set_not_resumable_session_callback(ctx,
2040	not_resumable_sess_cb);
2041
2042	if (ctx2 != NULL)
2043	SSL_CTX_set_not_resumable_session_callback(ctx2,
2044	not_resumable_sess_cb);
2045	}
2046	#ifndef OPENSSL_NO_PSK
2047	if (psk_key != NULL) {
2048	if (s_debug)
2049	BIO_printf(bio_s_out, "PSK key given, setting server callback\n");
2050	SSL_CTX_set_psk_server_callback(ctx, psk_server_cb);
2051	}
2052
2053	if (!SSL_CTX_use_psk_identity_hint(ctx, psk_identity_hint)) {
2054	BIO_printf(bio_err, "error setting PSK identity hint to context\n");
2055	ERR_print_errors(bio_err);
2056	goto end;
2057	}
2058	#endif
2059	if (psksessf != NULL) {
2060	BIO *stmp = BIO_new_file(psksessf, "r");
2061
2062	if (stmp == NULL) {
2063	BIO_printf(bio_err, "Can't open PSK session file %s\n", psksessf);
2064	ERR_print_errors(bio_err);
2065	goto end;
2066	}
2067	psksess = PEM_read_bio_SSL_SESSION(stmp, NULL, 0, NULL);
2068	BIO_free(stmp);
2069	if (psksess == NULL) {
2070	BIO_printf(bio_err, "Can't read PSK session file %s\n", psksessf);
2071	ERR_print_errors(bio_err);
2072	goto end;
2073	}
2074
2075	}
2076
2077	if (psk_key != NULL \|\| psksess != NULL)
2078	SSL_CTX_set_psk_find_session_callback(ctx, psk_find_session_cb);
2079
2080	SSL_CTX_set_verify(ctx, s_server_verify, verify_callback);
2081	if (!SSL_CTX_set_session_id_context(ctx,
2082	(void *)&s_server_session_id_context,
2083	sizeof(s_server_session_id_context))) {
2084	BIO_printf(bio_err, "error setting session id context\n");
2085	ERR_print_errors(bio_err);
2086	goto end;
2087	}
2088
2089	/* Set DTLS cookie generation and verification callbacks */
2090	SSL_CTX_set_cookie_generate_cb(ctx, generate_cookie_callback);
2091	SSL_CTX_set_cookie_verify_cb(ctx, verify_cookie_callback);
2092
2093	/* Set TLS1.3 cookie generation and verification callbacks */
2094	SSL_CTX_set_stateless_cookie_generate_cb(ctx, generate_stateless_cookie_callback);
2095	SSL_CTX_set_stateless_cookie_verify_cb(ctx, verify_stateless_cookie_callback);
2096
2097	if (ctx2 != NULL) {
2098	SSL_CTX_set_verify(ctx2, s_server_verify, verify_callback);
2099	if (!SSL_CTX_set_session_id_context(ctx2,
2100	(void *)&s_server_session_id_context,
2101	sizeof(s_server_session_id_context))) {
2102	BIO_printf(bio_err, "error setting session id context\n");
2103	ERR_print_errors(bio_err);
2104	goto end;
2105	}
2106	tlsextcbp.biodebug = bio_s_out;
2107	SSL_CTX_set_tlsext_servername_callback(ctx2, ssl_servername_cb);
2108	SSL_CTX_set_tlsext_servername_arg(ctx2, &tlsextcbp);
2109	SSL_CTX_set_tlsext_servername_callback(ctx, ssl_servername_cb);
2110	SSL_CTX_set_tlsext_servername_arg(ctx, &tlsextcbp);
2111	}
2112
2113	#ifndef OPENSSL_NO_SRP
2114	if (srp_verifier_file != NULL) {
2115	srp_callback_parm.vb = SRP_VBASE_new(srpuserseed);
2116	srp_callback_parm.user = NULL;
2117	srp_callback_parm.login = NULL;
2118	if ((ret =
2119	SRP_VBASE_init(srp_callback_parm.vb,
2120	srp_verifier_file)) != SRP_NO_ERROR) {
2121	BIO_printf(bio_err,
2122	"Cannot initialize SRP verifier file \"%s\":ret=%d\n",
2123	srp_verifier_file, ret);
2124	goto end;
2125	}
2126	SSL_CTX_set_verify(ctx, SSL_VERIFY_NONE, verify_callback);
2127	SSL_CTX_set_srp_cb_arg(ctx, &srp_callback_parm);
2128	SSL_CTX_set_srp_username_callback(ctx, ssl_srp_server_param_cb);
2129	} else
2130	#endif
2131	if (CAfile != NULL) {
2132	SSL_CTX_set_client_CA_list(ctx, SSL_load_client_CA_file(CAfile));
2133
2134	if (ctx2)
2135	SSL_CTX_set_client_CA_list(ctx2, SSL_load_client_CA_file(CAfile));
2136	}
2137	#ifndef OPENSSL_NO_OCSP
2138	if (s_tlsextstatus) {
2139	SSL_CTX_set_tlsext_status_cb(ctx, cert_status_cb);
2140	SSL_CTX_set_tlsext_status_arg(ctx, &tlscstatp);
2141	if (ctx2) {
2142	SSL_CTX_set_tlsext_status_cb(ctx2, cert_status_cb);
2143	SSL_CTX_set_tlsext_status_arg(ctx2, &tlscstatp);
2144	}
2145	}
2146	#endif
2147	if (set_keylog_file(ctx, keylog_file))
2148	goto end;
2149
2150	if (max_early_data >= 0)
2151	SSL_CTX_set_max_early_data(ctx, max_early_data);
2152	if (recv_max_early_data >= 0)
2153	SSL_CTX_set_recv_max_early_data(ctx, recv_max_early_data);
2154
2155	if (rev)
2156	server_cb = rev_body;
2157	else if (www)
2158	server_cb = www_body;
2159	else
2160	server_cb = sv_body;
2161	#ifdef AF_UNIX
2162	if (socket_family == AF_UNIX
2163	&& unlink_unix_path)
2164	unlink(host);
2165	#endif
2166	do_server(&accept_socket, host, port, socket_family, socket_type, protocol,
2167	server_cb, context, naccept, bio_s_out);
2168	print_stats(bio_s_out, ctx);
2169	ret = 0;
2170	end:
2171	SSL_CTX_free(ctx);
2172	SSL_SESSION_free(psksess);
2173	set_keylog_file(NULL, NULL);
2174	X509_free(s_cert);
2175	sk_X509_CRL_pop_free(crls, X509_CRL_free);
2176	X509_free(s_dcert);
2177	EVP_PKEY_free(s_key);
2178	EVP_PKEY_free(s_dkey);
2179	sk_X509_pop_free(s_chain, X509_free);
2180	sk_X509_pop_free(s_dchain, X509_free);
2181	OPENSSL_free(pass);
2182	OPENSSL_free(dpass);
2183	OPENSSL_free(host);
2184	OPENSSL_free(port);
2185	X509_VERIFY_PARAM_free(vpm);
2186	free_sessions();
2187	OPENSSL_free(tlscstatp.host);
2188	OPENSSL_free(tlscstatp.port);
2189	OPENSSL_free(tlscstatp.path);
2190	SSL_CTX_free(ctx2);
2191	X509_free(s_cert2);
2192	EVP_PKEY_free(s_key2);
2193	#ifndef OPENSSL_NO_NEXTPROTONEG
2194	OPENSSL_free(next_proto.data);
2195	#endif
2196	OPENSSL_free(alpn_ctx.data);
2197	ssl_excert_free(exc);
2198	sk_OPENSSL_STRING_free(ssl_args);
2199	SSL_CONF_CTX_free(cctx);
2200	release_engine(engine);
2201	BIO_free(bio_s_out);
2202	bio_s_out = NULL;
2203	BIO_free(bio_s_msg);
2204	bio_s_msg = NULL;
2205	#ifdef CHARSET_EBCDIC
2206	BIO_meth_free(methods_ebcdic);
2207	#endif
2208	return ret;
2209	}
2210
2211	static void print_stats(BIO bio, SSL_CTX ssl_ctx)
2212	{
2213	BIO_printf(bio, "%4ld items in the session cache\n",
2214	SSL_CTX_sess_number(ssl_ctx));
2215	BIO_printf(bio, "%4ld client connects (SSL_connect())\n",
2216	SSL_CTX_sess_connect(ssl_ctx));
2217	BIO_printf(bio, "%4ld client renegotiates (SSL_connect())\n",
2218	SSL_CTX_sess_connect_renegotiate(ssl_ctx));
2219	BIO_printf(bio, "%4ld client connects that finished\n",
2220	SSL_CTX_sess_connect_good(ssl_ctx));
2221	BIO_printf(bio, "%4ld server accepts (SSL_accept())\n",
2222	SSL_CTX_sess_accept(ssl_ctx));
2223	BIO_printf(bio, "%4ld server renegotiates (SSL_accept())\n",
2224	SSL_CTX_sess_accept_renegotiate(ssl_ctx));
2225	BIO_printf(bio, "%4ld server accepts that finished\n",
2226	SSL_CTX_sess_accept_good(ssl_ctx));
2227	BIO_printf(bio, "%4ld session cache hits\n", SSL_CTX_sess_hits(ssl_ctx));
2228	BIO_printf(bio, "%4ld session cache misses\n",
2229	SSL_CTX_sess_misses(ssl_ctx));
2230	BIO_printf(bio, "%4ld session cache timeouts\n",
2231	SSL_CTX_sess_timeouts(ssl_ctx));
2232	BIO_printf(bio, "%4ld callback cache hits\n",
2233	SSL_CTX_sess_cb_hits(ssl_ctx));
2234	BIO_printf(bio, "%4ld cache full overflows (%ld allowed)\n",
2235	SSL_CTX_sess_cache_full(ssl_ctx),
2236	SSL_CTX_sess_get_cache_size(ssl_ctx));
2237	}
2238
2239	static int sv_body(int s, int stype, int prot, unsigned char *context)
2240	{
2241	char *buf = NULL;
2242	fd_set readfds;
2243	int ret = 1, width;
2244	int k, i;
2245	unsigned long l;
2246	SSL *con = NULL;
2247	BIO *sbio;
2248	struct timeval timeout;
2249	#if !(defined(OPENSSL_SYS_WINDOWS) \|\| defined(OPENSSL_SYS_MSDOS))
2250	struct timeval *timeoutp;
2251	#endif
2252	#ifndef OPENSSL_NO_DTLS
2253	# ifndef OPENSSL_NO_SCTP
2254	int isdtls = (stype == SOCK_DGRAM \|\| prot == IPPROTO_SCTP);
2255	# else
2256	int isdtls = (stype == SOCK_DGRAM);
2257	# endif
2258	#endif
2259
2260	buf = app_malloc(bufsize, "server buffer");
2261	if (s_nbio) {
2262	if (!BIO_socket_nbio(s, 1))
2263	ERR_print_errors(bio_err);
2264	else if (!s_quiet)
2265	BIO_printf(bio_err, "Turned on non blocking io\n");
2266	}
2267
2268	con = SSL_new(ctx);
2269	if (con == NULL) {
2270	ret = -1;
2271	goto err;
2272	}
2273
2274	if (s_tlsextdebug) {
2275	SSL_set_tlsext_debug_callback(con, tlsext_cb);
2276	SSL_set_tlsext_debug_arg(con, bio_s_out);
2277	}
2278
2279	if (context != NULL
2280	&& !SSL_set_session_id_context(con, context,
2281	strlen((char *)context))) {
2282	BIO_printf(bio_err, "Error setting session id context\n");
2283	ret = -1;
2284	goto err;
2285	}
2286
2287	if (!SSL_clear(con)) {
2288	BIO_printf(bio_err, "Error clearing SSL connection\n");
2289	ret = -1;
2290	goto err;
2291	}
2292	#ifndef OPENSSL_NO_DTLS
2293	if (isdtls) {
2294	# ifndef OPENSSL_NO_SCTP
2295	if (prot == IPPROTO_SCTP)
2296	sbio = BIO_new_dgram_sctp(s, BIO_NOCLOSE);
2297	else
2298	# endif
2299	sbio = BIO_new_dgram(s, BIO_NOCLOSE);
2300
2301	if (enable_timeouts) {
2302	timeout.tv_sec = 0;
2303	timeout.tv_usec = DGRAM_RCV_TIMEOUT;
2304	BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_RECV_TIMEOUT, 0, &timeout);
2305
2306	timeout.tv_sec = 0;
2307	timeout.tv_usec = DGRAM_SND_TIMEOUT;
2308	BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_SEND_TIMEOUT, 0, &timeout);
2309	}
2310
2311	if (socket_mtu) {
2312	if (socket_mtu < DTLS_get_link_min_mtu(con)) {
2313	BIO_printf(bio_err, "MTU too small. Must be at least %ld\n",
2314	DTLS_get_link_min_mtu(con));
2315	ret = -1;
2316	BIO_free(sbio);
2317	goto err;
2318	}
2319	SSL_set_options(con, SSL_OP_NO_QUERY_MTU);
2320	if (!DTLS_set_link_mtu(con, socket_mtu)) {
2321	BIO_printf(bio_err, "Failed to set MTU\n");
2322	ret = -1;
2323	BIO_free(sbio);
2324	goto err;
2325	}
2326	} else
2327	/* want to do MTU discovery */
2328	BIO_ctrl(sbio, BIO_CTRL_DGRAM_MTU_DISCOVER, 0, NULL);
2329
2330	# ifndef OPENSSL_NO_SCTP
2331	if (prot != IPPROTO_SCTP)
2332	# endif
2333	/* Turn on cookie exchange. Not necessary for SCTP */
2334	SSL_set_options(con, SSL_OP_COOKIE_EXCHANGE);
2335	} else
2336	#endif
2337	sbio = BIO_new_socket(s, BIO_NOCLOSE);
2338
2339	if (sbio == NULL) {
2340	BIO_printf(bio_err, "Unable to create BIO\n");
2341	ERR_print_errors(bio_err);
2342	goto err;
2343	}
2344
2345	if (s_nbio_test) {
2346	BIO *test;
2347
2348	test = BIO_new(BIO_f_nbio_test());
2349	sbio = BIO_push(test, sbio);
2350	}
2351
2352	SSL_set_bio(con, sbio, sbio);
2353	SSL_set_accept_state(con);
2354	/* SSL_set_fd(con,s); */
2355
2356	if (s_debug) {
2357	BIO_set_callback(SSL_get_rbio(con), bio_dump_callback);
2358	BIO_set_callback_arg(SSL_get_rbio(con), (char *)bio_s_out);
2359	}
2360	if (s_msg) {
2361	#ifndef OPENSSL_NO_SSL_TRACE
2362	if (s_msg == 2)
2363	SSL_set_msg_callback(con, SSL_trace);
2364	else
2365	#endif
2366	SSL_set_msg_callback(con, msg_cb);
2367	SSL_set_msg_callback_arg(con, bio_s_msg ? bio_s_msg : bio_s_out);
2368	}
2369
2370	if (s_tlsextdebug) {
2371	SSL_set_tlsext_debug_callback(con, tlsext_cb);
2372	SSL_set_tlsext_debug_arg(con, bio_s_out);
2373	}
2374
2375	if (early_data) {
2376	int write_header = 1, edret = SSL_READ_EARLY_DATA_ERROR;
2377	size_t readbytes;
2378
2379	while (edret != SSL_READ_EARLY_DATA_FINISH) {
2380	for (;;) {
2381	edret = SSL_read_early_data(con, buf, bufsize, &readbytes);
2382	if (edret != SSL_READ_EARLY_DATA_ERROR)
2383	break;
2384
2385	switch (SSL_get_error(con, 0)) {
2386	case SSL_ERROR_WANT_WRITE:
2387	case SSL_ERROR_WANT_ASYNC:
2388	case SSL_ERROR_WANT_READ:
2389	/* Just keep trying - busy waiting */
2390	continue;
2391	default:
2392	BIO_printf(bio_err, "Error reading early data\n");
2393	ERR_print_errors(bio_err);
2394	goto err;
2395	}
2396	}
2397	if (readbytes > 0) {
2398	if (write_header) {
2399	BIO_printf(bio_s_out, "Early data received:\n");
2400	write_header = 0;
2401	}
2402	raw_write_stdout(buf, (unsigned int)readbytes);
2403	(void)BIO_flush(bio_s_out);
2404	}
2405	}
2406	if (write_header) {
2407	if (SSL_get_early_data_status(con) == SSL_EARLY_DATA_NOT_SENT)
2408	BIO_printf(bio_s_out, "No early data received\n");
2409	else
2410	BIO_printf(bio_s_out, "Early data was rejected\n");
2411	} else {
2412	BIO_printf(bio_s_out, "\nEnd of early data\n");
2413	}
2414	if (SSL_is_init_finished(con))
2415	print_connection_info(con);
2416	}
2417
2418	if (fileno_stdin() > s)
2419	width = fileno_stdin() + 1;
2420	else
2421	width = s + 1;
2422	for (;;) {
2423	int read_from_terminal;
2424	int read_from_sslcon;
2425
2426	read_from_terminal = 0;
2427	read_from_sslcon = SSL_has_pending(con)
2428	\|\| (async && SSL_waiting_for_async(con));
2429
2430	if (!read_from_sslcon) {
2431	FD_ZERO(&readfds);
2432	#if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS)
2433	openssl_fdset(fileno_stdin(), &readfds);
2434	#endif
2435	openssl_fdset(s, &readfds);
2436	/*
2437	* Note: under VMS with SOCKETSHR the second parameter is
2438	* currently of type (int *) whereas under other systems it is
2439	* (void *) if you don't have a cast it will choke the compiler:
2440	* if you do have a cast then you can either go for (int *) or
2441	* (void *).
2442	*/
2443	#if defined(OPENSSL_SYS_WINDOWS) \|\| defined(OPENSSL_SYS_MSDOS)
2444	/*
2445	* Under DOS (non-djgpp) and Windows we can't select on stdin:
2446	* only on sockets. As a workaround we timeout the select every
2447	* second and check for any keypress. In a proper Windows
2448	* application we wouldn't do this because it is inefficient.
2449	*/
2450	timeout.tv_sec = 1;
2451	timeout.tv_usec = 0;
2452	i = select(width, (void *)&readfds, NULL, NULL, &timeout);
2453	if (has_stdin_waiting())
2454	read_from_terminal = 1;
2455	if ((i < 0) \|\| (!i && !read_from_terminal))
2456	continue;
2457	#else
2458	if (SSL_is_dtls(con) && DTLSv1_get_timeout(con, &timeout))
2459	timeoutp = &timeout;
2460	else
2461	timeoutp = NULL;
2462
2463	i = select(width, (void *)&readfds, NULL, NULL, timeoutp);
2464
2465	if ((SSL_is_dtls(con)) && DTLSv1_handle_timeout(con) > 0)
2466	BIO_printf(bio_err, "TIMEOUT occurred\n");
2467
2468	if (i <= 0)
2469	continue;
2470	if (FD_ISSET(fileno_stdin(), &readfds))
2471	read_from_terminal = 1;
2472	#endif
2473	if (FD_ISSET(s, &readfds))
2474	read_from_sslcon = 1;
2475	}
2476	if (read_from_terminal) {
2477	if (s_crlf) {
2478	int j, lf_num;
2479
2480	i = raw_read_stdin(buf, bufsize / 2);
2481	lf_num = 0;
2482	/* both loops are skipped when i <= 0 */
2483	for (j = 0; j < i; j++)
2484	if (buf[j] == '\n')
2485	lf_num++;
2486	for (j = i - 1; j >= 0; j--) {
2487	buf[j + lf_num] = buf[j];
2488	if (buf[j] == '\n') {
2489	lf_num--;
2490	i++;
2491	buf[j + lf_num] = '\r';
2492	}
2493	}
2494	assert(lf_num == 0);
2495	} else {
2496	i = raw_read_stdin(buf, bufsize);
2497	}
2498
2499	if (!s_quiet && !s_brief) {
2500	if ((i <= 0) \|\| (buf[0] == 'Q')) {
2501	BIO_printf(bio_s_out, "DONE\n");
2502	(void)BIO_flush(bio_s_out);
2503	BIO_closesocket(s);
2504	close_accept_socket();
2505	ret = -11;
2506	goto err;
2507	}
2508	if ((i <= 0) \|\| (buf[0] == 'q')) {
2509	BIO_printf(bio_s_out, "DONE\n");
2510	(void)BIO_flush(bio_s_out);
2511	if (SSL_version(con) != DTLS1_VERSION)
2512	BIO_closesocket(s);
2513	/*
2514	* close_accept_socket(); ret= -11;
2515	*/
2516	goto err;
2517	}
2518	#ifndef OPENSSL_NO_HEARTBEATS
2519	if ((buf[0] == 'B') && ((buf[1] == '\n') \|\| (buf[1] == '\r'))) {
2520	BIO_printf(bio_err, "HEARTBEATING\n");
2521	SSL_heartbeat(con);
2522	i = 0;
2523	continue;
2524	}
2525	#endif
2526	if ((buf[0] == 'r') && ((buf[1] == '\n') \|\| (buf[1] == '\r'))) {
2527	SSL_renegotiate(con);
2528	i = SSL_do_handshake(con);
2529	printf("SSL_do_handshake -> %d\n", i);
2530	i = 0; /* 13; */
2531	continue;
2532	}
2533	if ((buf[0] == 'R') && ((buf[1] == '\n') \|\| (buf[1] == '\r'))) {
2534	SSL_set_verify(con,
2535	SSL_VERIFY_PEER \| SSL_VERIFY_CLIENT_ONCE,
2536	NULL);
2537	SSL_renegotiate(con);
2538	i = SSL_do_handshake(con);
2539	printf("SSL_do_handshake -> %d\n", i);
2540	i = 0; /* 13; */
2541	continue;
2542	}
2543	if ((buf[0] == 'K' \|\| buf[0] == 'k')
2544	&& ((buf[1] == '\n') \|\| (buf[1] == '\r'))) {
2545	SSL_key_update(con, buf[0] == 'K' ?
2546	SSL_KEY_UPDATE_REQUESTED
2547	: SSL_KEY_UPDATE_NOT_REQUESTED);
2548	i = SSL_do_handshake(con);
2549	printf("SSL_do_handshake -> %d\n", i);
2550	i = 0;
2551	continue;
2552	}
2553	if (buf[0] == 'c' && ((buf[1] == '\n') \|\| (buf[1] == '\r'))) {
2554	SSL_set_verify(con, SSL_VERIFY_PEER, NULL);
2555	i = SSL_verify_client_post_handshake(con);
2556	if (i == 0) {
2557	printf("Failed to initiate request\n");
2558	ERR_print_errors(bio_err);
2559	} else {
2560	i = SSL_do_handshake(con);
2561	printf("SSL_do_handshake -> %d\n", i);
2562	i = 0;
2563	}
2564	continue;
2565	}
2566	if (buf[0] == 'P') {
2567	static const char *str = "Lets print some clear text\n";
2568	BIO_write(SSL_get_wbio(con), str, strlen(str));
2569	}
2570	if (buf[0] == 'S') {
2571	print_stats(bio_s_out, SSL_get_SSL_CTX(con));
2572	}
2573	}
2574	#ifdef CHARSET_EBCDIC
2575	ebcdic2ascii(buf, buf, i);
2576	#endif
2577	l = k = 0;
2578	for (;;) {
2579	/* should do a select for the write */
2580	#ifdef RENEG
2581	static count = 0;
2582	if (++count == 100) {
2583	count = 0;
2584	SSL_renegotiate(con);
2585	}
2586	#endif
2587	k = SSL_write(con, &(buf[l]), (unsigned int)i);
2588	#ifndef OPENSSL_NO_SRP
2589	while (SSL_get_error(con, k) == SSL_ERROR_WANT_X509_LOOKUP) {
2590	BIO_printf(bio_s_out, "LOOKUP renego during write\n");
2591	SRP_user_pwd_free(srp_callback_parm.user);
2592	srp_callback_parm.user =
2593	SRP_VBASE_get1_by_user(srp_callback_parm.vb,
2594	srp_callback_parm.login);
2595	if (srp_callback_parm.user)
2596	BIO_printf(bio_s_out, "LOOKUP done %s\n",
2597	srp_callback_parm.user->info);
2598	else
2599	BIO_printf(bio_s_out, "LOOKUP not successful\n");
2600	k = SSL_write(con, &(buf[l]), (unsigned int)i);
2601	}
2602	#endif
2603	switch (SSL_get_error(con, k)) {
2604	case SSL_ERROR_NONE:
2605	break;
2606	case SSL_ERROR_WANT_ASYNC:
2607	BIO_printf(bio_s_out, "Write BLOCK (Async)\n");
2608	(void)BIO_flush(bio_s_out);
2609	wait_for_async(con);
2610	break;
2611	case SSL_ERROR_WANT_WRITE:
2612	case SSL_ERROR_WANT_READ:
2613	case SSL_ERROR_WANT_X509_LOOKUP:
2614	BIO_printf(bio_s_out, "Write BLOCK\n");
2615	(void)BIO_flush(bio_s_out);
2616	break;
2617	case SSL_ERROR_WANT_ASYNC_JOB:
2618	/*
2619	* This shouldn't ever happen in s_server. Treat as an error
2620	*/
2621	case SSL_ERROR_SYSCALL:
2622	case SSL_ERROR_SSL:
2623	BIO_printf(bio_s_out, "ERROR\n");
2624	(void)BIO_flush(bio_s_out);
2625	ERR_print_errors(bio_err);
2626	ret = 1;
2627	goto err;
2628	/* break; */
2629	case SSL_ERROR_ZERO_RETURN:
2630	BIO_printf(bio_s_out, "DONE\n");
2631	(void)BIO_flush(bio_s_out);
2632	ret = 1;
2633	goto err;
2634	}
2635	if (k > 0) {
2636	l += k;
2637	i -= k;
2638	}
2639	if (i <= 0)
2640	break;
2641	}
2642	}
2643	if (read_from_sslcon) {
2644	/*
2645	* init_ssl_connection handles all async events itself so if we're
2646	* waiting for async then we shouldn't go back into
2647	* init_ssl_connection
2648	*/
2649	if ((!async \|\| !SSL_waiting_for_async(con))
2650	&& !SSL_is_init_finished(con)) {
2651	i = init_ssl_connection(con);
2652
2653	if (i < 0) {
2654	ret = 0;
2655	goto err;
2656	} else if (i == 0) {
2657	ret = 1;
2658	goto err;
2659	}
2660	} else {
2661	again:
2662	i = SSL_read(con, (char *)buf, bufsize);
2663	#ifndef OPENSSL_NO_SRP
2664	while (SSL_get_error(con, i) == SSL_ERROR_WANT_X509_LOOKUP) {
2665	BIO_printf(bio_s_out, "LOOKUP renego during read\n");
2666	SRP_user_pwd_free(srp_callback_parm.user);
2667	srp_callback_parm.user =
2668	SRP_VBASE_get1_by_user(srp_callback_parm.vb,
2669	srp_callback_parm.login);
2670	if (srp_callback_parm.user)
2671	BIO_printf(bio_s_out, "LOOKUP done %s\n",
2672	srp_callback_parm.user->info);
2673	else
2674	BIO_printf(bio_s_out, "LOOKUP not successful\n");
2675	i = SSL_read(con, (char *)buf, bufsize);
2676	}
2677	#endif
2678	switch (SSL_get_error(con, i)) {
2679	case SSL_ERROR_NONE:
2680	#ifdef CHARSET_EBCDIC
2681	ascii2ebcdic(buf, buf, i);
2682	#endif
2683	raw_write_stdout(buf, (unsigned int)i);
2684	(void)BIO_flush(bio_s_out);
2685	if (SSL_has_pending(con))
2686	goto again;
2687	break;
2688	case SSL_ERROR_WANT_ASYNC:
2689	BIO_printf(bio_s_out, "Read BLOCK (Async)\n");
2690	(void)BIO_flush(bio_s_out);
2691	wait_for_async(con);
2692	break;
2693	case SSL_ERROR_WANT_WRITE:
2694	case SSL_ERROR_WANT_READ:
2695	BIO_printf(bio_s_out, "Read BLOCK\n");
2696	(void)BIO_flush(bio_s_out);
2697	break;
2698	case SSL_ERROR_WANT_ASYNC_JOB:
2699	/*
2700	* This shouldn't ever happen in s_server. Treat as an error
2701	*/
2702	case SSL_ERROR_SYSCALL:
2703	case SSL_ERROR_SSL:
2704	BIO_printf(bio_s_out, "ERROR\n");
2705	(void)BIO_flush(bio_s_out);
2706	ERR_print_errors(bio_err);
2707	ret = 1;
2708	goto err;
2709	case SSL_ERROR_ZERO_RETURN:
2710	BIO_printf(bio_s_out, "DONE\n");
2711	(void)BIO_flush(bio_s_out);
2712	ret = 1;
2713	goto err;
2714	}
2715	}
2716	}
2717	}
2718	err:
2719	if (con != NULL) {
2720	BIO_printf(bio_s_out, "shutting down SSL\n");
2721	SSL_set_shutdown(con, SSL_SENT_SHUTDOWN \| SSL_RECEIVED_SHUTDOWN);
2722	SSL_free(con);
2723	}
2724	BIO_printf(bio_s_out, "CONNECTION CLOSED\n");
2725	OPENSSL_clear_free(buf, bufsize);
2726	return ret;
2727	}
2728
2729	static void close_accept_socket(void)
2730	{
2731	BIO_printf(bio_err, "shutdown accept socket\n");
2732	if (accept_socket >= 0) {
2733	BIO_closesocket(accept_socket);
2734	}
2735	}
2736
2737	static int is_retryable(SSL *con, int i)
2738	{
2739	int err = SSL_get_error(con, i);
2740
2741	/* If it's not a fatal error, it must be retryable */
2742	return (err != SSL_ERROR_SSL)
2743	&& (err != SSL_ERROR_SYSCALL)
2744	&& (err != SSL_ERROR_ZERO_RETURN);
2745	}
2746
2747	static int init_ssl_connection(SSL *con)
2748	{
2749	int i;
2750	long verify_err;
2751	int retry = 0;
2752
2753	if (dtlslisten \|\| stateless) {
2754	BIO_ADDR *client = NULL;
2755
2756	if (dtlslisten) {
2757	if ((client = BIO_ADDR_new()) == NULL) {
2758	BIO_printf(bio_err, "ERROR - memory\n");
2759	return 0;
2760	}
2761	i = DTLSv1_listen(con, client);
2762	} else {
2763	i = SSL_stateless(con);
2764	}
2765	if (i > 0) {
2766	BIO *wbio;
2767	int fd = -1;
2768
2769	if (dtlslisten) {
2770	wbio = SSL_get_wbio(con);
2771	if (wbio) {
2772	BIO_get_fd(wbio, &fd);
2773	}
2774
2775	if (!wbio \|\| BIO_connect(fd, client, 0) == 0) {
2776	BIO_printf(bio_err, "ERROR - unable to connect\n");
2777	BIO_ADDR_free(client);
2778	return 0;
2779	}
2780
2781	(void)BIO_ctrl_set_connected(wbio, client);
2782	BIO_ADDR_free(client);
2783	dtlslisten = 0;
2784	} else {
2785	stateless = 0;
2786	}
2787	i = SSL_accept(con);
2788	} else {
2789	BIO_ADDR_free(client);
2790	}
2791	} else {
2792	do {
2793	i = SSL_accept(con);
2794
2795	if (i <= 0)
2796	retry = is_retryable(con, i);
2797	#ifdef CERT_CB_TEST_RETRY
2798	{
2799	while (i <= 0
2800	&& SSL_get_error(con, i) == SSL_ERROR_WANT_X509_LOOKUP
2801	&& SSL_get_state(con) == TLS_ST_SR_CLNT_HELLO) {
2802	BIO_printf(bio_err,
2803	"LOOKUP from certificate callback during accept\n");
2804	i = SSL_accept(con);
2805	if (i <= 0)
2806	retry = is_retryable(con, i);
2807	}
2808	}
2809	#endif
2810
2811	#ifndef OPENSSL_NO_SRP
2812	while (i <= 0
2813	&& SSL_get_error(con, i) == SSL_ERROR_WANT_X509_LOOKUP) {
2814	BIO_printf(bio_s_out, "LOOKUP during accept %s\n",
2815	srp_callback_parm.login);
2816	SRP_user_pwd_free(srp_callback_parm.user);
2817	srp_callback_parm.user =
2818	SRP_VBASE_get1_by_user(srp_callback_parm.vb,
2819	srp_callback_parm.login);
2820	if (srp_callback_parm.user)
2821	BIO_printf(bio_s_out, "LOOKUP done %s\n",
2822	srp_callback_parm.user->info);
2823	else
2824	BIO_printf(bio_s_out, "LOOKUP not successful\n");
2825	i = SSL_accept(con);
2826	if (i <= 0)
2827	retry = is_retryable(con, i);
2828	}
2829	#endif
2830	} while (i < 0 && SSL_waiting_for_async(con));
2831	}
2832
2833	if (i <= 0) {
2834	if (((dtlslisten \|\| stateless) && i == 0)
2835	\|\| (!dtlslisten && !stateless && retry)) {
2836	BIO_printf(bio_s_out, "DELAY\n");
2837	return 1;
2838	}
2839
2840	BIO_printf(bio_err, "ERROR\n");
2841
2842	verify_err = SSL_get_verify_result(con);
2843	if (verify_err != X509_V_OK) {
2844	BIO_printf(bio_err, "verify error:%s\n",
2845	X509_verify_cert_error_string(verify_err));
2846	}
2847	/* Always print any error messages */
2848	ERR_print_errors(bio_err);
2849	return 0;
2850	}
2851
2852	print_connection_info(con);
2853	return 1;
2854	}
2855
2856	static void print_connection_info(SSL *con)
2857	{
2858	const char *str;
2859	X509 *peer;
2860	char buf[BUFSIZ];
2861	#if !defined(OPENSSL_NO_NEXTPROTONEG)
2862	const unsigned char *next_proto_neg;
2863	unsigned next_proto_neg_len;
2864	#endif
2865	unsigned char *exportedkeymat;
2866	int i;
2867
2868	if (s_brief)
2869	print_ssl_summary(con);
2870
2871	PEM_write_bio_SSL_SESSION(bio_s_out, SSL_get_session(con));
2872
2873	peer = SSL_get_peer_certificate(con);
2874	if (peer != NULL) {
2875	BIO_printf(bio_s_out, "Client certificate\n");
2876	PEM_write_bio_X509(bio_s_out, peer);
2877	dump_cert_text(bio_s_out, peer);
2878	X509_free(peer);
2879	peer = NULL;
2880	}
2881
2882	if (SSL_get_shared_ciphers(con, buf, sizeof(buf)) != NULL)
2883	BIO_printf(bio_s_out, "Shared ciphers:%s\n", buf);
2884	str = SSL_CIPHER_get_name(SSL_get_current_cipher(con));
2885	ssl_print_sigalgs(bio_s_out, con);
2886	#ifndef OPENSSL_NO_EC
2887	ssl_print_point_formats(bio_s_out, con);
2888	ssl_print_groups(bio_s_out, con, 0);
2889	#endif
2890	print_ca_names(bio_s_out, con);
2891	BIO_printf(bio_s_out, "CIPHER is %s\n", (str != NULL) ? str : "(NONE)");
2892
2893	#if !defined(OPENSSL_NO_NEXTPROTONEG)
2894	SSL_get0_next_proto_negotiated(con, &next_proto_neg, &next_proto_neg_len);
2895	if (next_proto_neg) {
2896	BIO_printf(bio_s_out, "NEXTPROTO is ");
2897	BIO_write(bio_s_out, next_proto_neg, next_proto_neg_len);
2898	BIO_printf(bio_s_out, "\n");
2899	}
2900	#endif
2901	#ifndef OPENSSL_NO_SRTP
2902	{
2903	SRTP_PROTECTION_PROFILE *srtp_profile
2904	= SSL_get_selected_srtp_profile(con);
2905
2906	if (srtp_profile)
2907	BIO_printf(bio_s_out, "SRTP Extension negotiated, profile=%s\n",
2908	srtp_profile->name);
2909	}
2910	#endif
2911	if (SSL_session_reused(con))
2912	BIO_printf(bio_s_out, "Reused session-id\n");
2913	BIO_printf(bio_s_out, "Secure Renegotiation IS%s supported\n",
2914	SSL_get_secure_renegotiation_support(con) ? "" : " NOT");
2915	if ((SSL_get_options(con) & SSL_OP_NO_RENEGOTIATION))
2916	BIO_printf(bio_s_out, "Renegotiation is DISABLED\n");
2917
2918	if (keymatexportlabel != NULL) {
2919	BIO_printf(bio_s_out, "Keying material exporter:\n");
2920	BIO_printf(bio_s_out, " Label: '%s'\n", keymatexportlabel);
2921	BIO_printf(bio_s_out, " Length: %i bytes\n", keymatexportlen);
2922	exportedkeymat = app_malloc(keymatexportlen, "export key");
2923	if (!SSL_export_keying_material(con, exportedkeymat,
2924	keymatexportlen,
2925	keymatexportlabel,
2926	strlen(keymatexportlabel),
2927	NULL, 0, 0)) {
2928	BIO_printf(bio_s_out, " Error\n");
2929	} else {
2930	BIO_printf(bio_s_out, " Keying material: ");
2931	for (i = 0; i < keymatexportlen; i++)
2932	BIO_printf(bio_s_out, "%02X", exportedkeymat[i]);
2933	BIO_printf(bio_s_out, "\n");
2934	}
2935	OPENSSL_free(exportedkeymat);
2936	}
2937
2938	(void)BIO_flush(bio_s_out);
2939	}
2940
2941	#ifndef OPENSSL_NO_DH
2942	static DH load_dh_param(const char dhfile)
2943	{
2944	DH *ret = NULL;
2945	BIO *bio;
2946
2947	if ((bio = BIO_new_file(dhfile, "r")) == NULL)
2948	goto err;
2949	ret = PEM_read_bio_DHparams(bio, NULL, NULL, NULL);
2950	err:
2951	BIO_free(bio);
2952	return ret;
2953	}
2954	#endif
2955
2956	static int www_body(int s, int stype, int prot, unsigned char *context)
2957	{
2958	char *buf = NULL;
2959	int ret = 1;
2960	int i, j, k, dot;
2961	SSL *con;
2962	const SSL_CIPHER *c;
2963	BIO io, ssl_bio, *sbio;
2964	#ifdef RENEG
2965	int total_bytes = 0;
2966	#endif
2967	int width;
2968	fd_set readfds;
2969
2970	/* Set width for a select call if needed */
2971	width = s + 1;
2972
2973	buf = app_malloc(bufsize, "server www buffer");
2974	io = BIO_new(BIO_f_buffer());
2975	ssl_bio = BIO_new(BIO_f_ssl());
2976	if ((io == NULL) \|\| (ssl_bio == NULL))
2977	goto err;
2978
2979	if (s_nbio) {
2980	if (!BIO_socket_nbio(s, 1))
2981	ERR_print_errors(bio_err);
2982	else if (!s_quiet)
2983	BIO_printf(bio_err, "Turned on non blocking io\n");
2984	}
2985
2986	/* lets make the output buffer a reasonable size */
2987	if (!BIO_set_write_buffer_size(io, bufsize))
2988	goto err;
2989
2990	if ((con = SSL_new(ctx)) == NULL)
2991	goto err;
2992
2993	if (s_tlsextdebug) {
2994	SSL_set_tlsext_debug_callback(con, tlsext_cb);
2995	SSL_set_tlsext_debug_arg(con, bio_s_out);
2996	}
2997
2998	if (context != NULL
2999	&& !SSL_set_session_id_context(con, context,
3000	strlen((char *)context))) {
3001	SSL_free(con);
3002	goto err;
3003	}
3004
3005	sbio = BIO_new_socket(s, BIO_NOCLOSE);
3006	if (s_nbio_test) {
3007	BIO *test;
3008
3009	test = BIO_new(BIO_f_nbio_test());
3010	sbio = BIO_push(test, sbio);
3011	}
3012	SSL_set_bio(con, sbio, sbio);
3013	SSL_set_accept_state(con);
3014
3015	/* No need to free \|con\| after this. Done by BIO_free(ssl_bio) */
3016	BIO_set_ssl(ssl_bio, con, BIO_CLOSE);
3017	BIO_push(io, ssl_bio);
3018	#ifdef CHARSET_EBCDIC
3019	io = BIO_push(BIO_new(BIO_f_ebcdic_filter()), io);
3020	#endif
3021
3022	if (s_debug) {
3023	BIO_set_callback(SSL_get_rbio(con), bio_dump_callback);
3024	BIO_set_callback_arg(SSL_get_rbio(con), (char *)bio_s_out);
3025	}
3026	if (s_msg) {
3027	#ifndef OPENSSL_NO_SSL_TRACE
3028	if (s_msg == 2)
3029	SSL_set_msg_callback(con, SSL_trace);
3030	else
3031	#endif
3032	SSL_set_msg_callback(con, msg_cb);
3033	SSL_set_msg_callback_arg(con, bio_s_msg ? bio_s_msg : bio_s_out);
3034	}
3035
3036	for (;;) {
3037	i = BIO_gets(io, buf, bufsize - 1);
3038	if (i < 0) { /* error */
3039	if (!BIO_should_retry(io) && !SSL_waiting_for_async(con)) {
3040	if (!s_quiet)
3041	ERR_print_errors(bio_err);
3042	goto err;
3043	} else {
3044	BIO_printf(bio_s_out, "read R BLOCK\n");
3045	#ifndef OPENSSL_NO_SRP
3046	if (BIO_should_io_special(io)
3047	&& BIO_get_retry_reason(io) == BIO_RR_SSL_X509_LOOKUP) {
3048	BIO_printf(bio_s_out, "LOOKUP renego during read\n");
3049	SRP_user_pwd_free(srp_callback_parm.user);
3050	srp_callback_parm.user =
3051	SRP_VBASE_get1_by_user(srp_callback_parm.vb,
3052	srp_callback_parm.login);
3053	if (srp_callback_parm.user)
3054	BIO_printf(bio_s_out, "LOOKUP done %s\n",
3055	srp_callback_parm.user->info);
3056	else
3057	BIO_printf(bio_s_out, "LOOKUP not successful\n");
3058	continue;
3059	}
3060	#endif
3061	#if !defined(OPENSSL_SYS_MSDOS)
3062	sleep(1);
3063	#endif
3064	continue;
3065	}
3066	} else if (i == 0) { /* end of input */
3067	ret = 1;
3068	goto end;
3069	}
3070
3071	/* else we have data */
3072	if (((www == 1) && (strncmp("GET ", buf, 4) == 0)) \|\|
3073	((www == 2) && (strncmp("GET /stats ", buf, 11) == 0))) {
3074	char *p;
3075	X509 *peer = NULL;
3076	STACK_OF(SSL_CIPHER) *sk;
3077	static const char *space = " ";
3078
3079	if (www == 1 && strncmp("GET /reneg", buf, 10) == 0) {
3080	if (strncmp("GET /renegcert", buf, 14) == 0)
3081	SSL_set_verify(con,
3082	SSL_VERIFY_PEER \| SSL_VERIFY_CLIENT_ONCE,
3083	NULL);
3084	i = SSL_renegotiate(con);
3085	BIO_printf(bio_s_out, "SSL_renegotiate -> %d\n", i);
3086	/* Send the HelloRequest */
3087	i = SSL_do_handshake(con);
3088	if (i <= 0) {
3089	BIO_printf(bio_s_out, "SSL_do_handshake() Retval %d\n",
3090	SSL_get_error(con, i));
3091	ERR_print_errors(bio_err);
3092	goto err;
3093	}
3094	/* Wait for a ClientHello to come back */
3095	FD_ZERO(&readfds);
3096	openssl_fdset(s, &readfds);
3097	i = select(width, (void *)&readfds, NULL, NULL, NULL);
3098	if (i <= 0 \|\| !FD_ISSET(s, &readfds)) {
3099	BIO_printf(bio_s_out,
3100	"Error waiting for client response\n");
3101	ERR_print_errors(bio_err);
3102	goto err;
3103	}
3104	/*
3105	* We're not actually expecting any data here and we ignore
3106	* any that is sent. This is just to force the handshake that
3107	* we're expecting to come from the client. If they haven't
3108	* sent one there's not much we can do.
3109	*/
3110	BIO_gets(io, buf, bufsize - 1);
3111	}
3112
3113	BIO_puts(io,
3114	"HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n");
3115	BIO_puts(io, "<HTML><BODY BGCOLOR=\"#ffffff\">\n");
3116	BIO_puts(io, "<pre>\n");
3117	/* BIO_puts(io, OpenSSL_version(OPENSSL_VERSION)); */
3118	BIO_puts(io, "\n");
3119	for (i = 0; i < local_argc; i++) {
3120	const char *myp;
3121	for (myp = local_argv[i]; *myp; myp++)
3122	switch (*myp) {
3123	case '<':
3124	BIO_puts(io, "<");
3125	break;
3126	case '>':
3127	BIO_puts(io, ">");
3128	break;
3129	case '&':
3130	BIO_puts(io, "&");
3131	break;
3132	default:
3133	BIO_write(io, myp, 1);
3134	break;
3135	}
3136	BIO_write(io, " ", 1);
3137	}
3138	BIO_puts(io, "\n");
3139
3140	BIO_printf(io,
3141	"Secure Renegotiation IS%s supported\n",
3142	SSL_get_secure_renegotiation_support(con) ?
3143	"" : " NOT");
3144
3145	/*
3146	* The following is evil and should not really be done
3147	*/
3148	BIO_printf(io, "Ciphers supported in s_server binary\n");
3149	sk = SSL_get_ciphers(con);
3150	j = sk_SSL_CIPHER_num(sk);
3151	for (i = 0; i < j; i++) {
3152	c = sk_SSL_CIPHER_value(sk, i);
3153	BIO_printf(io, "%-11s:%-25s ",
3154	SSL_CIPHER_get_version(c), SSL_CIPHER_get_name(c));
3155	if ((((i + 1) % 2) == 0) && (i + 1 != j))
3156	BIO_puts(io, "\n");
3157	}
3158	BIO_puts(io, "\n");
3159	p = SSL_get_shared_ciphers(con, buf, bufsize);
3160	if (p != NULL) {
3161	BIO_printf(io,
3162	"---\nCiphers common between both SSL end points:\n");
3163	j = i = 0;
3164	while (*p) {
3165	if (*p == ':') {
3166	BIO_write(io, space, 26 - j);
3167	i++;
3168	j = 0;
3169	BIO_write(io, ((i % 3) ? " " : "\n"), 1);
3170	} else {
3171	BIO_write(io, p, 1);
3172	j++;
3173	}
3174	p++;
3175	}
3176	BIO_puts(io, "\n");
3177	}
3178	ssl_print_sigalgs(io, con);
3179	#ifndef OPENSSL_NO_EC
3180	ssl_print_groups(io, con, 0);
3181	#endif
3182	print_ca_names(io, con);
3183	BIO_printf(io, (SSL_session_reused(con)
3184	? "---\nReused, " : "---\nNew, "));
3185	c = SSL_get_current_cipher(con);
3186	BIO_printf(io, "%s, Cipher is %s\n",
3187	SSL_CIPHER_get_version(c), SSL_CIPHER_get_name(c));
3188	SSL_SESSION_print(io, SSL_get_session(con));
3189	BIO_printf(io, "---\n");
3190	print_stats(io, SSL_get_SSL_CTX(con));
3191	BIO_printf(io, "---\n");
3192	peer = SSL_get_peer_certificate(con);
3193	if (peer != NULL) {
3194	BIO_printf(io, "Client certificate\n");
3195	X509_print(io, peer);
3196	PEM_write_bio_X509(io, peer);
3197	X509_free(peer);
3198	peer = NULL;
3199	} else {
3200	BIO_puts(io, "no client certificate available\n");
3201	}
3202	BIO_puts(io, "</pre></BODY></HTML>\r\n\r\n");
3203	break;
3204	} else if ((www == 2 \|\| www == 3)
3205	&& (strncmp("GET /", buf, 5) == 0)) {
3206	BIO *file;
3207	char p, e;
3208	static const char *text =
3209	"HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n";
3210
3211	/* skip the '/' */
3212	p = &(buf[5]);
3213
3214	dot = 1;
3215	for (e = p; *e != '\0'; e++) {
3216	if (e[0] == ' ')
3217	break;
3218
3219	if (e[0] == ':') {
3220	/* Windows drive. We treat this the same way as ".." */
3221	dot = -1;
3222	break;
3223	}
3224
3225	switch (dot) {
3226	case 1:
3227	dot = (e[0] == '.') ? 2 : 0;
3228	break;
3229	case 2:
3230	dot = (e[0] == '.') ? 3 : 0;
3231	break;
3232	case 3:
3233	dot = (e[0] == '/' \|\| e[0] == '\\') ? -1 : 0;
3234	break;
3235	}
3236	if (dot == 0)
3237	dot = (e[0] == '/' \|\| e[0] == '\\') ? 1 : 0;
3238	}
3239	dot = (dot == 3) \|\| (dot == -1); /* filename contains ".."
3240	* component */
3241
3242	if (*e == '\0') {
3243	BIO_puts(io, text);
3244	BIO_printf(io, "'%s' is an invalid file name\r\n", p);
3245	break;
3246	}
3247	*e = '\0';
3248
3249	if (dot) {
3250	BIO_puts(io, text);
3251	BIO_printf(io, "'%s' contains '..' or ':'\r\n", p);
3252	break;
3253	}
3254
3255	if (p == '/' \|\| p == '\\') {
3256	BIO_puts(io, text);
3257	BIO_printf(io, "'%s' is an invalid path\r\n", p);
3258	break;
3259	}
3260
3261	/* if a directory, do the index thang */
3262	if (app_isdir(p) > 0) {
3263	BIO_puts(io, text);
3264	BIO_printf(io, "'%s' is a directory\r\n", p);
3265	break;
3266	}
3267
3268	if ((file = BIO_new_file(p, "r")) == NULL) {
3269	BIO_puts(io, text);
3270	BIO_printf(io, "Error opening '%s'\r\n", p);
3271	ERR_print_errors(io);
3272	break;
3273	}
3274
3275	if (!s_quiet)
3276	BIO_printf(bio_err, "FILE:%s\n", p);
3277
3278	if (www == 2) {
3279	i = strlen(p);
3280	if (((i > 5) && (strcmp(&(p[i - 5]), ".html") == 0)) \|\|
3281	((i > 4) && (strcmp(&(p[i - 4]), ".php") == 0)) \|\|
3282	((i > 4) && (strcmp(&(p[i - 4]), ".htm") == 0)))
3283	BIO_puts(io,
3284	"HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n");
3285	else
3286	BIO_puts(io,
3287	"HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n");
3288	}
3289	/* send the file */
3290	for (;;) {
3291	i = BIO_read(file, buf, bufsize);
3292	if (i <= 0)
3293	break;
3294
3295	#ifdef RENEG
3296	total_bytes += i;
3297	BIO_printf(bio_err, "%d\n", i);
3298	if (total_bytes > 3 * 1024) {
3299	total_bytes = 0;
3300	BIO_printf(bio_err, "RENEGOTIATE\n");
3301	SSL_renegotiate(con);
3302	}
3303	#endif
3304
3305	for (j = 0; j < i;) {
3306	#ifdef RENEG
3307	static count = 0;
3308	if (++count == 13) {
3309	SSL_renegotiate(con);
3310	}
3311	#endif
3312	k = BIO_write(io, &(buf[j]), i - j);
3313	if (k <= 0) {
3314	if (!BIO_should_retry(io)
3315	&& !SSL_waiting_for_async(con))
3316	goto write_error;
3317	else {
3318	BIO_printf(bio_s_out, "rwrite W BLOCK\n");
3319	}
3320	} else {
3321	j += k;
3322	}
3323	}
3324	}
3325	write_error:
3326	BIO_free(file);
3327	break;
3328	}
3329	}
3330
3331	for (;;) {
3332	i = (int)BIO_flush(io);
3333	if (i <= 0) {
3334	if (!BIO_should_retry(io))
3335	break;
3336	} else
3337	break;
3338	}
3339	end:
3340	/* make sure we re-use sessions */
3341	SSL_set_shutdown(con, SSL_SENT_SHUTDOWN \| SSL_RECEIVED_SHUTDOWN);
3342
3343	err:
3344	OPENSSL_free(buf);
3345	BIO_free_all(io);
3346	return ret;
3347	}
3348
3349	static int rev_body(int s, int stype, int prot, unsigned char *context)
3350	{
3351	char *buf = NULL;
3352	int i;
3353	int ret = 1;
3354	SSL *con;
3355	BIO io, ssl_bio, *sbio;
3356
3357	buf = app_malloc(bufsize, "server rev buffer");
3358	io = BIO_new(BIO_f_buffer());
3359	ssl_bio = BIO_new(BIO_f_ssl());
3360	if ((io == NULL) \|\| (ssl_bio == NULL))
3361	goto err;
3362
3363	/* lets make the output buffer a reasonable size */
3364	if (!BIO_set_write_buffer_size(io, bufsize))
3365	goto err;
3366
3367	if ((con = SSL_new(ctx)) == NULL)
3368	goto err;
3369
3370	if (s_tlsextdebug) {
3371	SSL_set_tlsext_debug_callback(con, tlsext_cb);
3372	SSL_set_tlsext_debug_arg(con, bio_s_out);
3373	}
3374	if (context != NULL
3375	&& !SSL_set_session_id_context(con, context,
3376	strlen((char *)context))) {
3377	SSL_free(con);
3378	ERR_print_errors(bio_err);
3379	goto err;
3380	}
3381
3382	sbio = BIO_new_socket(s, BIO_NOCLOSE);
3383	SSL_set_bio(con, sbio, sbio);
3384	SSL_set_accept_state(con);
3385
3386	/* No need to free \|con\| after this. Done by BIO_free(ssl_bio) */
3387	BIO_set_ssl(ssl_bio, con, BIO_CLOSE);
3388	BIO_push(io, ssl_bio);
3389	#ifdef CHARSET_EBCDIC
3390	io = BIO_push(BIO_new(BIO_f_ebcdic_filter()), io);
3391	#endif
3392
3393	if (s_debug) {
3394	BIO_set_callback(SSL_get_rbio(con), bio_dump_callback);
3395	BIO_set_callback_arg(SSL_get_rbio(con), (char *)bio_s_out);
3396	}
3397	if (s_msg) {
3398	#ifndef OPENSSL_NO_SSL_TRACE
3399	if (s_msg == 2)
3400	SSL_set_msg_callback(con, SSL_trace);
3401	else
3402	#endif
3403	SSL_set_msg_callback(con, msg_cb);
3404	SSL_set_msg_callback_arg(con, bio_s_msg ? bio_s_msg : bio_s_out);
3405	}
3406
3407	for (;;) {
3408	i = BIO_do_handshake(io);
3409	if (i > 0)
3410	break;
3411	if (!BIO_should_retry(io)) {
3412	BIO_puts(bio_err, "CONNECTION FAILURE\n");
3413	ERR_print_errors(bio_err);
3414	goto end;
3415	}
3416	#ifndef OPENSSL_NO_SRP
3417	if (BIO_should_io_special(io)
3418	&& BIO_get_retry_reason(io) == BIO_RR_SSL_X509_LOOKUP) {
3419	BIO_printf(bio_s_out, "LOOKUP renego during accept\n");
3420	SRP_user_pwd_free(srp_callback_parm.user);
3421	srp_callback_parm.user =
3422	SRP_VBASE_get1_by_user(srp_callback_parm.vb,
3423	srp_callback_parm.login);
3424	if (srp_callback_parm.user)
3425	BIO_printf(bio_s_out, "LOOKUP done %s\n",
3426	srp_callback_parm.user->info);
3427	else
3428	BIO_printf(bio_s_out, "LOOKUP not successful\n");
3429	continue;
3430	}
3431	#endif
3432	}
3433	BIO_printf(bio_err, "CONNECTION ESTABLISHED\n");
3434	print_ssl_summary(con);
3435
3436	for (;;) {
3437	i = BIO_gets(io, buf, bufsize - 1);
3438	if (i < 0) { /* error */
3439	if (!BIO_should_retry(io)) {
3440	if (!s_quiet)
3441	ERR_print_errors(bio_err);
3442	goto err;
3443	} else {
3444	BIO_printf(bio_s_out, "read R BLOCK\n");
3445	#ifndef OPENSSL_NO_SRP
3446	if (BIO_should_io_special(io)
3447	&& BIO_get_retry_reason(io) == BIO_RR_SSL_X509_LOOKUP) {
3448	BIO_printf(bio_s_out, "LOOKUP renego during read\n");
3449	SRP_user_pwd_free(srp_callback_parm.user);
3450	srp_callback_parm.user =
3451	SRP_VBASE_get1_by_user(srp_callback_parm.vb,
3452	srp_callback_parm.login);
3453	if (srp_callback_parm.user)
3454	BIO_printf(bio_s_out, "LOOKUP done %s\n",
3455	srp_callback_parm.user->info);
3456	else
3457	BIO_printf(bio_s_out, "LOOKUP not successful\n");
3458	continue;
3459	}
3460	#endif
3461	#if !defined(OPENSSL_SYS_MSDOS)
3462	sleep(1);
3463	#endif
3464	continue;
3465	}
3466	} else if (i == 0) { /* end of input */
3467	ret = 1;
3468	BIO_printf(bio_err, "CONNECTION CLOSED\n");
3469	goto end;
3470	} else {
3471	char *p = buf + i - 1;
3472	while (i && (p == '\n' \|\| p == '\r')) {
3473	p--;
3474	i--;
3475	}
3476	if (!s_ign_eof && (i == 5) && (strncmp(buf, "CLOSE", 5) == 0)) {
3477	ret = 1;
3478	BIO_printf(bio_err, "CONNECTION CLOSED\n");
3479	goto end;
3480	}
3481	BUF_reverse((unsigned char *)buf, NULL, i);
3482	buf[i] = '\n';
3483	BIO_write(io, buf, i + 1);
3484	for (;;) {
3485	i = BIO_flush(io);
3486	if (i > 0)
3487	break;
3488	if (!BIO_should_retry(io))
3489	goto end;
3490	}
3491	}
3492	}
3493	end:
3494	/* make sure we re-use sessions */
3495	SSL_set_shutdown(con, SSL_SENT_SHUTDOWN \| SSL_RECEIVED_SHUTDOWN);
3496
3497	err:
3498
3499	OPENSSL_free(buf);
3500	BIO_free_all(io);
3501	return ret;
3502	}
3503
3504	#define MAX_SESSION_ID_ATTEMPTS 10
3505	static int generate_session_id(SSL ssl, unsigned char id,
3506	unsigned int *id_len)
3507	{
3508	unsigned int count = 0;
3509	do {
3510	if (RAND_bytes(id, *id_len) <= 0)
3511	return 0;
3512	/*
3513	* Prefix the session_id with the required prefix. NB: If our prefix
3514	* is too long, clip it - but there will be worse effects anyway, eg.
3515	* the server could only possibly create 1 session ID (ie. the
3516	* prefix!) so all future session negotiations will fail due to
3517	* conflicts.
3518	*/
3519	memcpy(id, session_id_prefix,
3520	(strlen(session_id_prefix) < *id_len) ?
3521	strlen(session_id_prefix) : *id_len);
3522	}
3523	while (SSL_has_matching_session_id(ssl, id, *id_len) &&
3524	(++count < MAX_SESSION_ID_ATTEMPTS));
3525	if (count >= MAX_SESSION_ID_ATTEMPTS)
3526	return 0;
3527	return 1;
3528	}
3529
3530	/*
3531	* By default s_server uses an in-memory cache which caches SSL_SESSION
3532	* structures without any serialisation. This hides some bugs which only
3533	* become apparent in deployed servers. By implementing a basic external
3534	* session cache some issues can be debugged using s_server.
3535	*/
3536
3537	typedef struct simple_ssl_session_st {
3538	unsigned char *id;
3539	unsigned int idlen;
3540	unsigned char *der;
3541	int derlen;
3542	struct simple_ssl_session_st *next;
3543	} simple_ssl_session;
3544
3545	static simple_ssl_session *first = NULL;
3546
3547	static int add_session(SSL ssl, SSL_SESSION session)
3548	{
3549	simple_ssl_session sess = app_malloc(sizeof(sess), "get session");
3550	unsigned char *p;
3551
3552	SSL_SESSION_get_id(session, &sess->idlen);
3553	sess->derlen = i2d_SSL_SESSION(session, NULL);
3554	if (sess->derlen < 0) {
3555	BIO_printf(bio_err, "Error encoding session\n");
3556	OPENSSL_free(sess);
3557	return 0;
3558	}
3559
3560	sess->id = OPENSSL_memdup(SSL_SESSION_get_id(session, NULL), sess->idlen);
3561	sess->der = app_malloc(sess->derlen, "get session buffer");
3562	if (!sess->id) {
3563	BIO_printf(bio_err, "Out of memory adding to external cache\n");
3564	OPENSSL_free(sess->id);
3565	OPENSSL_free(sess->der);
3566	OPENSSL_free(sess);
3567	return 0;
3568	}
3569	p = sess->der;
3570
3571	/* Assume it still works. */
3572	if (i2d_SSL_SESSION(session, &p) != sess->derlen) {
3573	BIO_printf(bio_err, "Unexpected session encoding length\n");
3574	OPENSSL_free(sess->id);
3575	OPENSSL_free(sess->der);
3576	OPENSSL_free(sess);
3577	return 0;
3578	}
3579
3580	sess->next = first;
3581	first = sess;
3582	BIO_printf(bio_err, "New session added to external cache\n");
3583	return 0;
3584	}
3585
3586	static SSL_SESSION get_session(SSL ssl, const unsigned char *id, int idlen,
3587	int *do_copy)
3588	{
3589	simple_ssl_session *sess;
3590	*do_copy = 0;
3591	for (sess = first; sess; sess = sess->next) {
3592	if (idlen == (int)sess->idlen && !memcmp(sess->id, id, idlen)) {
3593	const unsigned char *p = sess->der;
3594	BIO_printf(bio_err, "Lookup session: cache hit\n");
3595	return d2i_SSL_SESSION(NULL, &p, sess->derlen);
3596	}
3597	}
3598	BIO_printf(bio_err, "Lookup session: cache miss\n");
3599	return NULL;
3600	}
3601
3602	static void del_session(SSL_CTX sctx, SSL_SESSION session)
3603	{
3604	simple_ssl_session sess, prev = NULL;
3605	const unsigned char *id;
3606	unsigned int idlen;
3607	id = SSL_SESSION_get_id(session, &idlen);
3608	for (sess = first; sess; sess = sess->next) {
3609	if (idlen == sess->idlen && !memcmp(sess->id, id, idlen)) {
3610	if (prev)
3611	prev->next = sess->next;
3612	else
3613	first = sess->next;
3614	OPENSSL_free(sess->id);
3615	OPENSSL_free(sess->der);
3616	OPENSSL_free(sess);
3617	return;
3618	}
3619	prev = sess;
3620	}
3621	}
3622
3623	static void init_session_cache_ctx(SSL_CTX *sctx)
3624	{
3625	SSL_CTX_set_session_cache_mode(sctx,
3626	SSL_SESS_CACHE_NO_INTERNAL \|
3627	SSL_SESS_CACHE_SERVER);
3628	SSL_CTX_sess_set_new_cb(sctx, add_session);
3629	SSL_CTX_sess_set_get_cb(sctx, get_session);
3630	SSL_CTX_sess_set_remove_cb(sctx, del_session);
3631	}
3632
3633	static void free_sessions(void)
3634	{
3635	simple_ssl_session sess, tsess;
3636	for (sess = first; sess;) {
3637	OPENSSL_free(sess->id);
3638	OPENSSL_free(sess->der);
3639	tsess = sess;
3640	sess = sess->next;
3641	OPENSSL_free(tsess);
3642	}
3643	first = NULL;
3644	}
3645
3646	#endif /* OPENSSL_NO_SOCK */

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source: vbox/trunk/src/libs/openssl-1.1.1l/apps/s_server.c@ 95024

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