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Fix a potential memory leak in apps/s_server.c
[thirdparty/openssl.git] / apps / s_server.c
CommitLineData
846e33c7 1/*
fecb3aae 2 * Copyright 1995-2022 The OpenSSL Project Authors. All Rights Reserved.
aa8f3d76 3 * Copyright (c) 2002, Oracle and/or its affiliates. All rights reserved
c80149d9 4 * Copyright 2005 Nokia. All rights reserved.
a661b653 5 *
dffa7520 6 * Licensed under the Apache License 2.0 (the "License"). You may not use
846e33c7
RS		 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
a661b653 10 */
846e33c7 11
ddac1974 12#include <ctype.h>
8c197cc5
UM		 13#include <stdio.h>
14#include <stdlib.h>
15#include <string.h>
54463e4f
F		 16#if defined(_WIN32)
17/* Included before async.h to avoid some warnings */
18# include <windows.h>
19#endif
4d8743f4 20
be1bd923 21#include <openssl/e_os2.h>
54463e4f
F		 22#include <openssl/async.h>
23#include <openssl/ssl.h>
163f6dc1 24#include <openssl/decoder.h>
8c197cc5 25
f9e55034
MC		 26#ifndef OPENSSL_NO_SOCK
27
0f113f3e
MC		 28/*
29 * With IPv6, it looks like Digital has mixed up the proper order of
30 * recursive header file inclusion, resulting in the compiler complaining
31 * that u_int isn't defined, but only if _POSIX_C_SOURCE is defined, which is
32 * needed to have fileno() declared correctly... So let's define u_int
33 */
bc36ee62 34#if defined(OPENSSL_SYS_VMS_DECC) && !defined(__U_INT)
0f113f3e 35# define __U_INT
7d7d2cbc
UM		 36typedef unsigned int u_int;
37#endif
38
ec577822 39#include <openssl/bn.h>
d02b48c6 40#include "apps.h"
dab2cd68 41#include "progs.h"
ec577822
BM		 42#include <openssl/err.h>
43#include <openssl/pem.h>
44#include <openssl/x509.h>
1372965e 45#include <openssl/rand.h>
67c8e7f4 46#include <openssl/ocsp.h>
3eeaab4b 47#ifndef OPENSSL_NO_DH
0f113f3e 48# include <openssl/dh.h>
3eeaab4b 49#endif
3a1ee3c1 50#include <openssl/rsa.h>
d02b48c6 51#include "s_apps.h"
36d16f8e 52#include "timeouts.h"
5fd1478d
MC		 53#ifdef CHARSET_EBCDIC
54#include <openssl/ebcdic.h>
55#endif
0e97f1e1 56#include "internal/sockets.h"
d02b48c6 57
7c2d4fee 58static int not_resumable_sess_cb(SSL *s, int is_forward_secure);
72d0bc84
MC		 59static int sv_body(int s, int stype, int prot, unsigned char *context);
60static int www_body(int s, int stype, int prot, unsigned char *context);
61static int rev_body(int s, int stype, int prot, unsigned char *context);
0f113f3e 62static void close_accept_socket(void);
d02b48c6 63static int init_ssl_connection(SSL *s);
0f113f3e 64static void print_stats(BIO *bp, SSL_CTX *ctx);
ae3947de 65static int generate_session_id(SSL *ssl, unsigned char *id,
0f113f3e 66 unsigned int *id_len);
35b0ea4e
DSH		 67static void init_session_cache_ctx(SSL_CTX *sctx);
68static void free_sessions(void);
ade1e888 69static void print_connection_info(SSL *con);
ea262260 70
d6073e27 71static const int bufsize = 16 * 1024;
0f113f3e 72static int accept_socket = -1;
d02b48c6 73
0f113f3e 74#define TEST_CERT "server.pem"
e481f9b9 75#define TEST_CERT2 "server2.pem"
d02b48c6 76
0f113f3e 77static int s_nbio = 0;
0f113f3e 78static int s_nbio_test = 0;
df2ee0e2 79static int s_crlf = 0;
0f113f3e 80static SSL_CTX *ctx = NULL;
0f113f3e 81static SSL_CTX *ctx2 = NULL;
0f113f3e 82static int www = 0;
d02b48c6 83
0f113f3e 84static BIO *bio_s_out = NULL;
93ab9e42 85static BIO *bio_s_msg = NULL;
0f113f3e 86static int s_debug = 0;
0f113f3e 87static int s_tlsextdebug = 0;
0f113f3e
MC		 88static int s_msg = 0;
89static int s_quiet = 0;
90static int s_ign_eof = 0;
91static int s_brief = 0;
d02b48c6 92
0f113f3e
MC		 93static char *keymatexportlabel = NULL;
94static int keymatexportlen = 20;
e0af0405 95
7e25dd6d
MC		 96static int async = 0;
97
cd81ac7b 98static int use_sendfile = 0;
cd715b7e 99static int use_zc_sendfile = 0;
cd81ac7b 100
0f113f3e 101static const char *session_id_prefix = NULL;
b74ba295 102
a7a14a23 103#ifndef OPENSSL_NO_DTLS
36d16f8e 104static int enable_timeouts = 0;
b1277b99 105static long socket_mtu;
f2ff1432 106#endif
36d16f8e 107
9998b32c
MC		 108/*
109 * We define this but make it always be 0 in no-dtls builds to simplify the
110 * code.
111 */
112static int dtlslisten = 0;
c2f9648d 113static int stateless = 0;
9998b32c 114
593a2aa3 115static int early_data = 0;
df894947 116static SSL_SESSION *psksess = NULL;
593a2aa3 117
720b6cbe 118static char *psk_identity = "Client_identity";
0f113f3e 119char *psk_key = NULL; /* by default PSK is not used */
ddac1974 120
c3be39f2
LZ		 121static char http_server_binmode = 0; /* for now: 0/1 = default/binary */
122
14e35350 123#ifndef OPENSSL_NO_PSK
ddac1974 124static unsigned int psk_server_cb(SSL *ssl, const char *identity,
0f113f3e
MC		 125 unsigned char *psk,
126 unsigned int max_psk_len)
127{
6ec6d520
DSH		 128 long key_len = 0;
129 unsigned char *key;
0f113f3e
MC		 130
131 if (s_debug)
132 BIO_printf(bio_s_out, "psk_server_cb\n");
0007ff25 133
8b09a9c7 134 if (!SSL_is_dtls(ssl) && SSL_version(ssl) >= TLS1_3_VERSION) {
0007ff25 135 /*
8b09a9c7
MC		 136 * This callback is designed for use in (D)TLSv1.2 (or below). It is
137 * possible to use a single callback for all protocol versions - but it
138 * is preferred to use a dedicated callback for TLSv1.3. For TLSv1.3 we
139 * have psk_find_session_cb.
0007ff25
MC		 140 */
141 return 0;
142 }
143
2234212c 144 if (identity == NULL) {
0f113f3e
MC		 145 BIO_printf(bio_err, "Error: client did not send PSK identity\n");
146 goto out_err;
147 }
148 if (s_debug)
149 BIO_printf(bio_s_out, "identity_len=%d identity=%s\n",
11abf922 150 (int)strlen(identity), identity);
0f113f3e
MC		 151
152 /* here we could lookup the given identity e.g. from a database */
153 if (strcmp(identity, psk_identity) != 0) {
720b6cbe 154 BIO_printf(bio_s_out, "PSK warning: client identity not what we expected"
0f113f3e 155 " (got '%s' expected '%s')\n", identity, psk_identity);
720b6cbe
DKG		 156 } else {
157 if (s_debug)
0f113f3e 158 BIO_printf(bio_s_out, "PSK client identity found\n");
720b6cbe 159 }
0f113f3e
MC		 160
161 /* convert the PSK key to binary */
6ec6d520
DSH		 162 key = OPENSSL_hexstr2buf(psk_key, &key_len);
163 if (key == NULL) {
164 BIO_printf(bio_err, "Could not convert PSK key '%s' to buffer\n",
0f113f3e 165 psk_key);
0f113f3e
MC		 166 return 0;
167 }
6ec6d520 168 if (key_len > (int)max_psk_len) {
0f113f3e 169 BIO_printf(bio_err,
6ec6d520
DSH		 170 "psk buffer of callback is too small (%d) for key (%ld)\n",
171 max_psk_len, key_len);
172 OPENSSL_free(key);
0f113f3e
MC		 173 return 0;
174 }
175
6ec6d520
DSH		 176 memcpy(psk, key, key_len);
177 OPENSSL_free(key);
0f113f3e
MC		 178
179 if (s_debug)
6ec6d520
DSH		 180 BIO_printf(bio_s_out, "fetched PSK len=%ld\n", key_len);
181 return key_len;
ddac1974 182 out_err:
0f113f3e
MC		 183 if (s_debug)
184 BIO_printf(bio_err, "Error in PSK server callback\n");
c54cc2b1
RS		 185 (void)BIO_flush(bio_err);
186 (void)BIO_flush(bio_s_out);
0f113f3e
MC		 187 return 0;
188}
ddac1974 189#endif
36d16f8e 190
df894947
MC		 191static int psk_find_session_cb(SSL *ssl, const unsigned char *identity,
192 size_t identity_len, SSL_SESSION **sess)
193{
5ffff599
MC		 194 SSL_SESSION *tmpsess = NULL;
195 unsigned char *key;
196 long key_len;
197 const SSL_CIPHER *cipher = NULL;
198
df894947 199 if (strlen(psk_identity) != identity_len
c9d6fdd6 200 || memcmp(psk_identity, identity, identity_len) != 0) {
2d015189
MC		 201 *sess = NULL;
202 return 1;
c9d6fdd6 203 }
df894947 204
5ffff599
MC		 205 if (psksess != NULL) {
206 SSL_SESSION_up_ref(psksess);
207 *sess = psksess;
208 return 1;
209 }
210
211 key = OPENSSL_hexstr2buf(psk_key, &key_len);
212 if (key == NULL) {
213 BIO_printf(bio_err, "Could not convert PSK key '%s' to buffer\n",
214 psk_key);
215 return 0;
216 }
217
e73c6eae
MC		 218 /* We default to SHA256 */
219 cipher = SSL_CIPHER_find(ssl, tls13_aes128gcmsha256_id);
5ffff599 220 if (cipher == NULL) {
e73c6eae 221 BIO_printf(bio_err, "Error finding suitable ciphersuite\n");
fbccfedf 222 OPENSSL_free(key);
5ffff599
MC		 223 return 0;
224 }
225
226 tmpsess = SSL_SESSION_new();
227 if (tmpsess == NULL
228 || !SSL_SESSION_set1_master_key(tmpsess, key, key_len)
229 || !SSL_SESSION_set_cipher(tmpsess, cipher)
230 || !SSL_SESSION_set_protocol_version(tmpsess, SSL_version(ssl))) {
231 OPENSSL_free(key);
8e2552b1 232 SSL_SESSION_free(tmpsess);
5ffff599
MC		 233 return 0;
234 }
235 OPENSSL_free(key);
236 *sess = tmpsess;
df894947
MC		 237
238 return 1;
239}
240
edc032b5 241#ifndef OPENSSL_NO_SRP
1fb6b0bf 242static srpsrvparm srp_callback_parm;
edc032b5
BL		 243#endif
244
0f113f3e 245static int local_argc = 0;
d02b48c6 246static char **local_argv;
d02b48c6 247
a53955d8
UM		 248#ifdef CHARSET_EBCDIC
249static int ebcdic_new(BIO *bi);
250static int ebcdic_free(BIO *a);
251static int ebcdic_read(BIO *b, char *out, int outl);
0fd05a2f
BM		 252static int ebcdic_write(BIO *b, const char *in, int inl);
253static long ebcdic_ctrl(BIO *b, int cmd, long num, void *ptr);
a53955d8 254static int ebcdic_gets(BIO *bp, char *buf, int size);
0fd05a2f 255static int ebcdic_puts(BIO *bp, const char *str);
a53955d8 256
0f113f3e 257# define BIO_TYPE_EBCDIC_FILTER (18|0x0200)
5fd1478d 258static BIO_METHOD *methods_ebcdic = NULL;
0f113f3e 259
68dc6824 260/* This struct is "unwarranted chumminess with the compiler." */
0f113f3e
MC		 261typedef struct {
262 size_t alloced;
263 char buff[1];
a53955d8
UM		 264} EBCDIC_OUTBUFF;
265
5fd1478d 266static const BIO_METHOD *BIO_f_ebcdic_filter()
a53955d8 267{
5fd1478d
MC		 268 if (methods_ebcdic == NULL) {
269 methods_ebcdic = BIO_meth_new(BIO_TYPE_EBCDIC_FILTER,
d6073e27
F		 270 "EBCDIC/ASCII filter");
271 if (methods_ebcdic == NULL
5fd1478d
MC		 272 || !BIO_meth_set_write(methods_ebcdic, ebcdic_write)
273 || !BIO_meth_set_read(methods_ebcdic, ebcdic_read)
274 || !BIO_meth_set_puts(methods_ebcdic, ebcdic_puts)
275 || !BIO_meth_set_gets(methods_ebcdic, ebcdic_gets)
276 || !BIO_meth_set_ctrl(methods_ebcdic, ebcdic_ctrl)
277 || !BIO_meth_set_create(methods_ebcdic, ebcdic_new)
278 || !BIO_meth_set_destroy(methods_ebcdic, ebcdic_free))
279 return NULL;
280 }
281 return methods_ebcdic;
a53955d8
UM		 282}
283
284static int ebcdic_new(BIO *bi)
285{
0f113f3e 286 EBCDIC_OUTBUFF *wbuf;
a53955d8 287
b4faea50 288 wbuf = app_malloc(sizeof(*wbuf) + 1024, "ebcdic wbuf");
0f113f3e
MC		 289 wbuf->alloced = 1024;
290 wbuf->buff[0] = '\0';
a53955d8 291
5fd1478d
MC		 292 BIO_set_data(bi, wbuf);
293 BIO_set_init(bi, 1);
294 return 1;
a53955d8
UM		 295}
296
297static int ebcdic_free(BIO *a)
298{
5fd1478d
MC		 299 EBCDIC_OUTBUFF *wbuf;
300
0f113f3e 301 if (a == NULL)
5fd1478d
MC		 302 return 0;
303 wbuf = BIO_get_data(a);
304 OPENSSL_free(wbuf);
305 BIO_set_data(a, NULL);
306 BIO_set_init(a, 0);
307
308 return 1;
a53955d8 309}
0f113f3e 310
a53955d8
UM		 311static int ebcdic_read(BIO *b, char *out, int outl)
312{
0f113f3e 313 int ret = 0;
5fd1478d 314 BIO *next = BIO_next(b);
a53955d8 315
0f113f3e 316 if (out == NULL || outl == 0)
26a7d938 317 return 0;
5fd1478d 318 if (next == NULL)
26a7d938 319 return 0;
a53955d8 320
5fd1478d 321 ret = BIO_read(next, out, outl);
0f113f3e
MC		 322 if (ret > 0)
323 ascii2ebcdic(out, out, ret);
5fd1478d 324 return ret;
a53955d8
UM		 325}
326
0fd05a2f 327static int ebcdic_write(BIO *b, const char *in, int inl)
a53955d8 328{
0f113f3e 329 EBCDIC_OUTBUFF *wbuf;
5fd1478d 330 BIO *next = BIO_next(b);
0f113f3e
MC		 331 int ret = 0;
332 int num;
a53955d8 333
0f113f3e 334 if ((in == NULL) || (inl <= 0))
26a7d938 335 return 0;
5fd1478d
MC		 336 if (next == NULL)
337 return 0;
a53955d8 338
5fd1478d 339 wbuf = (EBCDIC_OUTBUFF *) BIO_get_data(b);
a53955d8 340
0f113f3e
MC		 341 if (inl > (num = wbuf->alloced)) {
342 num = num + num; /* double the size */
343 if (num < inl)
344 num = inl;
5fd1478d 345 OPENSSL_free(wbuf);
b4faea50 346 wbuf = app_malloc(sizeof(*wbuf) + num, "grow ebcdic wbuf");
a53955d8 347
0f113f3e
MC		 348 wbuf->alloced = num;
349 wbuf->buff[0] = '\0';
a53955d8 350
5fd1478d 351 BIO_set_data(b, wbuf);
0f113f3e 352 }
a53955d8 353
0f113f3e 354 ebcdic2ascii(wbuf->buff, in, inl);
a53955d8 355
5fd1478d 356 ret = BIO_write(next, wbuf->buff, inl);
a53955d8 357
26a7d938 358 return ret;
a53955d8
UM		 359}
360
0fd05a2f 361static long ebcdic_ctrl(BIO *b, int cmd, long num, void *ptr)
a53955d8 362{
0f113f3e 363 long ret;
5fd1478d 364 BIO *next = BIO_next(b);
0f113f3e 365
5fd1478d 366 if (next == NULL)
26a7d938 367 return 0;
0f113f3e
MC		 368 switch (cmd) {
369 case BIO_CTRL_DUP:
370 ret = 0L;
371 break;
372 default:
5fd1478d 373 ret = BIO_ctrl(next, cmd, num, ptr);
0f113f3e
MC		 374 break;
375 }
26a7d938 376 return ret;
a53955d8
UM		 377}
378
379static int ebcdic_gets(BIO *bp, char *buf, int size)
380{
0f113f3e 381 int i, ret = 0;
5fd1478d
MC		 382 BIO *next = BIO_next(bp);
383
384 if (next == NULL)
385 return 0;
0f113f3e
MC		 386/* return(BIO_gets(bp->next_bio,buf,size));*/
387 for (i = 0; i < size - 1; ++i) {
388 ret = ebcdic_read(bp, &buf[i], 1);
389 if (ret <= 0)
390 break;
391 else if (buf[i] == '\n') {
392 ++i;
393 break;
394 }
395 }
396 if (i < size)
397 buf[i] = '\0';
398 return (ret < 0 && i == 0) ? ret : i;
a53955d8
UM		 399}
400
0fd05a2f 401static int ebcdic_puts(BIO *bp, const char *str)
a53955d8 402{
5fd1478d
MC		 403 if (BIO_next(bp) == NULL)
404 return 0;
0f113f3e 405 return ebcdic_write(bp, str, strlen(str));
a53955d8
UM		 406}
407#endif
408
ed3883d2
BM		 409/* This is a context that we pass to callbacks */
410typedef struct tlsextctx_st {
0f113f3e
MC		 411 char *servername;
412 BIO *biodebug;
413 int extension_error;
ed3883d2
BM		 414} tlsextctx;
415
6d23cf97 416static int ssl_servername_cb(SSL *s, int *ad, void *arg)
0f113f3e
MC		 417{
418 tlsextctx *p = (tlsextctx *) arg;
419 const char *servername = SSL_get_servername(s, TLSEXT_NAMETYPE_host_name);
0d68367a
RS		 420
421 if (servername != NULL && p->biodebug != NULL) {
422 const char *cp = servername;
423 unsigned char uc;
424
425 BIO_printf(p->biodebug, "Hostname in TLS extension: \"");
426 while ((uc = *cp++) != 0)
427 BIO_printf(p->biodebug,
17860288 428 (((uc) & ~127) == 0) && isprint(uc) ? "%c" : "\\x%02x", uc);
0d68367a
RS		 429 BIO_printf(p->biodebug, "\"\n");
430 }
0f113f3e 431
2234212c 432 if (p->servername == NULL)
0f113f3e
MC		 433 return SSL_TLSEXT_ERR_NOACK;
434
2234212c 435 if (servername != NULL) {
fba140c7 436 if (OPENSSL_strcasecmp(servername, p->servername))
0f113f3e 437 return p->extension_error;
2234212c 438 if (ctx2 != NULL) {
0f113f3e
MC		 439 BIO_printf(p->biodebug, "Switching server context.\n");
440 SSL_set_SSL_CTX(s, ctx2);
441 }
442 }
443 return SSL_TLSEXT_ERR_OK;
ed3883d2 444}
67c8e7f4
DSH		 445
446/* Structure passed to cert status callback */
67c8e7f4 447typedef struct tlsextstatusctx_st {
f5ca0b04 448 int timeout;
acf65ae5
MC		 449 /* File to load OCSP Response from (or NULL if no file) */
450 char *respin;
0f113f3e
MC		 451 /* Default responder to use */
452 char *host, *path, *port;
80a4ac57 453 char *proxy, *no_proxy;
0f113f3e 454 int use_ssl;
0f113f3e 455 int verbose;
67c8e7f4
DSH		 456} tlsextstatusctx;
457
f5ca0b04 458static tlsextstatusctx tlscstatp = { -1 };
67c8e7f4 459
3e41ac35 460#ifndef OPENSSL_NO_OCSP
acf65ae5 461
0f113f3e 462/*
acf65ae5
MC		 463 * Helper function to get an OCSP_RESPONSE from a responder. This is a
464 * simplified version. It examines certificates each time and makes one OCSP
465 * responder query for each request. A full version would store details such as
466 * the OCSP certificate IDs and minimise the number of OCSP responses by caching
467 * them until they were considered "expired".
67c8e7f4 468 */
acf65ae5
MC		 469static int get_ocsp_resp_from_responder(SSL *s, tlsextstatusctx *srctx,
470 OCSP_RESPONSE **resp)
0f113f3e 471{
4c9b0a03 472 char *host = NULL, *port = NULL, *path = NULL;
80a4ac57 473 char *proxy = NULL, *no_proxy = NULL;
0f113f3e 474 int use_ssl;
0f113f3e
MC		 475 STACK_OF(OPENSSL_STRING) *aia = NULL;
476 X509 *x = NULL;
f0e0fd51
RS		 477 X509_STORE_CTX *inctx = NULL;
478 X509_OBJECT *obj;
0f113f3e 479 OCSP_REQUEST *req = NULL;
0f113f3e
MC		 480 OCSP_CERTID *id = NULL;
481 STACK_OF(X509_EXTENSION) *exts;
482 int ret = SSL_TLSEXT_ERR_NOACK;
483 int i;
7e1b7485 484
0f113f3e
MC		 485 /* Build up OCSP query from server certificate */
486 x = SSL_get_certificate(s);
487 aia = X509_get1_ocsp(x);
2234212c 488 if (aia != NULL) {
7932982b
DDO		 489 if (!OSSL_HTTP_parse_url(sk_OPENSSL_STRING_value(aia, 0), &use_ssl,
490 NULL, &host, &port, NULL, &path, NULL, NULL)) {
7e1b7485 491 BIO_puts(bio_err, "cert_status: can't parse AIA URL\n");
0f113f3e
MC		 492 goto err;
493 }
494 if (srctx->verbose)
7e1b7485 495 BIO_printf(bio_err, "cert_status: AIA URL: %s\n",
0f113f3e
MC		 496 sk_OPENSSL_STRING_value(aia, 0));
497 } else {
2234212c 498 if (srctx->host == NULL) {
7e1b7485 499 BIO_puts(bio_err,
0f113f3e
MC		 500 "cert_status: no AIA and no default responder URL\n");
501 goto done;
502 }
503 host = srctx->host;
504 path = srctx->path;
505 port = srctx->port;
506 use_ssl = srctx->use_ssl;
507 }
80a4ac57
DDO		 508 proxy = srctx->proxy;
509 no_proxy = srctx->no_proxy;
0f113f3e 510
f0e0fd51
RS		 511 inctx = X509_STORE_CTX_new();
512 if (inctx == NULL)
513 goto err;
514 if (!X509_STORE_CTX_init(inctx,
0f113f3e
MC		 515 SSL_CTX_get_cert_store(SSL_get_SSL_CTX(s)),
516 NULL, NULL))
517 goto err;
6ddbb4cd
RS		 518 obj = X509_STORE_CTX_get_obj_by_subject(inctx, X509_LU_X509,
519 X509_get_issuer_name(x));
f0e0fd51 520 if (obj == NULL) {
7e1b7485 521 BIO_puts(bio_err, "cert_status: Can't retrieve issuer certificate.\n");
0f113f3e
MC		 522 goto done;
523 }
f0e0fd51
RS		 524 id = OCSP_cert_to_id(NULL, x, X509_OBJECT_get0_X509(obj));
525 X509_OBJECT_free(obj);
2234212c 526 if (id == NULL)
0f113f3e 527 goto err;
0461b7ea
MC		 528 req = OCSP_REQUEST_new();
529 if (req == NULL)
530 goto err;
0f113f3e
MC		 531 if (!OCSP_request_add0_id(req, id))
532 goto err;
533 id = NULL;
534 /* Add any extensions to the request */
535 SSL_get_tlsext_status_exts(s, &exts);
536 for (i = 0; i < sk_X509_EXTENSION_num(exts); i++) {
537 X509_EXTENSION *ext = sk_X509_EXTENSION_value(exts, i);
538 if (!OCSP_REQUEST_add_ext(req, ext, -1))
539 goto err;
540 }
88d96983
DDO		 541 *resp = process_responder(req, host, port, path, proxy, no_proxy,
542 use_ssl, NULL /* headers */, srctx->timeout);
acf65ae5 543 if (*resp == NULL) {
7e1b7485 544 BIO_puts(bio_err, "cert_status: error querying responder\n");
0f113f3e
MC		 545 goto done;
546 }
acf65ae5 547
0f113f3e 548 ret = SSL_TLSEXT_ERR_OK;
f0e0fd51
RS		 549 goto done;
550
551 err:
552 ret = SSL_TLSEXT_ERR_ALERT_FATAL;
0f113f3e 553 done:
6530c490
MC		 554 /*
555 * If we parsed aia we need to free; otherwise they were copied and we
556 * don't
557 */
f5ca0b04 558 if (aia != NULL) {
0f113f3e
MC		 559 OPENSSL_free(host);
560 OPENSSL_free(path);
561 OPENSSL_free(port);
562 X509_email_free(aia);
563 }
25aaa98a
RS		 564 OCSP_CERTID_free(id);
565 OCSP_REQUEST_free(req);
f0e0fd51 566 X509_STORE_CTX_free(inctx);
0f113f3e 567 return ret;
0f113f3e 568}
acf65ae5
MC		 569
570/*
571 * Certificate Status callback. This is called when a client includes a
572 * certificate status request extension. The response is either obtained from a
573 * file, or from an OCSP responder.
574 */
575static int cert_status_cb(SSL *s, void *arg)
576{
577 tlsextstatusctx *srctx = arg;
578 OCSP_RESPONSE *resp = NULL;
579 unsigned char *rspder = NULL;
580 int rspderlen;
581 int ret = SSL_TLSEXT_ERR_ALERT_FATAL;
582
583 if (srctx->verbose)
584 BIO_puts(bio_err, "cert_status: callback called\n");
585
586 if (srctx->respin != NULL) {
587 BIO *derbio = bio_open_default(srctx->respin, 'r', FORMAT_ASN1);
588 if (derbio == NULL) {
589 BIO_puts(bio_err, "cert_status: Cannot open OCSP response file\n");
590 goto err;
591 }
592 resp = d2i_OCSP_RESPONSE_bio(derbio, NULL);
593 BIO_free(derbio);
f5ca0b04 594 if (resp == NULL) {
acf65ae5
MC		 595 BIO_puts(bio_err, "cert_status: Error reading OCSP response\n");
596 goto err;
597 }
598 } else {
599 ret = get_ocsp_resp_from_responder(s, srctx, &resp);
600 if (ret != SSL_TLSEXT_ERR_OK)
601 goto err;
602 }
603
604 rspderlen = i2d_OCSP_RESPONSE(resp, &rspder);
605 if (rspderlen <= 0)
606 goto err;
607
608 SSL_set_tlsext_status_ocsp_resp(s, rspder, rspderlen);
609 if (srctx->verbose) {
610 BIO_puts(bio_err, "cert_status: ocsp response sent:\n");
611 OCSP_RESPONSE_print(bio_err, resp, 2);
612 }
613
614 ret = SSL_TLSEXT_ERR_OK;
615
616 err:
617 if (ret != SSL_TLSEXT_ERR_OK)
618 ERR_print_errors(bio_err);
619
620 OCSP_RESPONSE_free(resp);
621
622 return ret;
623}
3e41ac35 624#endif
ee2ffc27 625
e481f9b9 626#ifndef OPENSSL_NO_NEXTPROTONEG
ee2ffc27
BL		 627/* This is the context that we pass to next_proto_cb */
628typedef struct tlsextnextprotoctx_st {
0f113f3e 629 unsigned char *data;
f2ff1432 630 size_t len;
ee2ffc27
BL		 631} tlsextnextprotoctx;
632
0f113f3e
MC		 633static int next_proto_cb(SSL *s, const unsigned char **data,
634 unsigned int *len, void *arg)
635{
636 tlsextnextprotoctx *next_proto = arg;
ee2ffc27 637
0f113f3e
MC		 638 *data = next_proto->data;
639 *len = next_proto->len;
ee2ffc27 640
0f113f3e
MC		 641 return SSL_TLSEXT_ERR_OK;
642}
e481f9b9 643#endif /* ndef OPENSSL_NO_NEXTPROTONEG */
6f017a8f
AL		 644
645/* This the context that we pass to alpn_cb */
646typedef struct tlsextalpnctx_st {
0f113f3e 647 unsigned char *data;
817cd0d5 648 size_t len;
6f017a8f
AL		 649} tlsextalpnctx;
650
0f113f3e
MC		 651static int alpn_cb(SSL *s, const unsigned char **out, unsigned char *outlen,
652 const unsigned char *in, unsigned int inlen, void *arg)
653{
654 tlsextalpnctx *alpn_ctx = arg;
655
656 if (!s_quiet) {
657 /* We can assume that |in| is syntactically valid. */
817cd0d5 658 unsigned int i;
0f113f3e
MC		 659 BIO_printf(bio_s_out, "ALPN protocols advertised by the client: ");
660 for (i = 0; i < inlen;) {
661 if (i)
662 BIO_write(bio_s_out, ", ", 2);
663 BIO_write(bio_s_out, &in[i + 1], in[i]);
664 i += in[i] + 1;
665 }
666 BIO_write(bio_s_out, "\n", 1);
667 }
668
669 if (SSL_select_next_proto
670 ((unsigned char **)out, outlen, alpn_ctx->data, alpn_ctx->len, in,
671 inlen) != OPENSSL_NPN_NEGOTIATED) {
9e885a70 672 return SSL_TLSEXT_ERR_ALERT_FATAL;
0f113f3e
MC		 673 }
674
675 if (!s_quiet) {
676 BIO_printf(bio_s_out, "ALPN protocols selected: ");
677 BIO_write(bio_s_out, *out, *outlen);
678 BIO_write(bio_s_out, "\n", 1);
679 }
680
681 return SSL_TLSEXT_ERR_OK;
682}
ed3883d2 683
7c2d4fee 684static int not_resumable_sess_cb(SSL *s, int is_forward_secure)
0f113f3e
MC		 685{
686 /* disable resumption for sessions with forward secure ciphers */
687 return is_forward_secure;
688}
7c2d4fee 689
7e1b7485 690typedef enum OPTION_choice {
b0f96018
DDO		 691 OPT_COMMON,
692 OPT_ENGINE,
ab69ac00 693 OPT_4, OPT_6, OPT_ACCEPT, OPT_PORT, OPT_UNIX, OPT_UNLINK, OPT_NACCEPT,
a7c04f2b 694 OPT_VERIFY, OPT_NAMEOPT, OPT_UPPER_V_VERIFY, OPT_CONTEXT, OPT_CERT, OPT_CRL,
7e1b7485
RS		 695 OPT_CRL_DOWNLOAD, OPT_SERVERINFO, OPT_CERTFORM, OPT_KEY, OPT_KEYFORM,
696 OPT_PASS, OPT_CERT_CHAIN, OPT_DHPARAM, OPT_DCERTFORM, OPT_DCERT,
697 OPT_DKEYFORM, OPT_DPASS, OPT_DKEY, OPT_DCERT_CHAIN, OPT_NOCERT,
2b6bcb70 698 OPT_CAPATH, OPT_NOCAPATH, OPT_CHAINCAPATH, OPT_VERIFYCAPATH, OPT_NO_CACHE,
7e1b7485 699 OPT_EXT_CACHE, OPT_CRLFORM, OPT_VERIFY_RET_ERROR, OPT_VERIFY_QUIET,
2b6bcb70 700 OPT_BUILD_CHAIN, OPT_CAFILE, OPT_NOCAFILE, OPT_CHAINCAFILE,
fd3397fc
RL		 701 OPT_VERIFYCAFILE,
702 OPT_CASTORE, OPT_NOCASTORE, OPT_CHAINCASTORE, OPT_VERIFYCASTORE,
703 OPT_NBIO, OPT_NBIO_TEST, OPT_IGN_EOF, OPT_NO_IGN_EOF,
2b6bcb70 704 OPT_DEBUG, OPT_TLSEXTDEBUG, OPT_STATUS, OPT_STATUS_VERBOSE,
80a4ac57
DDO		 705 OPT_STATUS_TIMEOUT, OPT_PROXY, OPT_NO_PROXY, OPT_STATUS_URL,
706 OPT_STATUS_FILE, OPT_MSG, OPT_MSGFILE,
acf65ae5
MC		 707 OPT_TRACE, OPT_SECURITY_DEBUG, OPT_SECURITY_DEBUG_VERBOSE, OPT_STATE,
708 OPT_CRLF, OPT_QUIET, OPT_BRIEF, OPT_NO_DHE,
df894947
MC		 709 OPT_NO_RESUME_EPHEMERAL, OPT_PSK_IDENTITY, OPT_PSK_HINT, OPT_PSK,
710 OPT_PSK_SESS, OPT_SRPVFILE, OPT_SRPUSERSEED, OPT_REV, OPT_WWW,
711 OPT_UPPER_WWW, OPT_HTTP, OPT_ASYNC, OPT_SSL_CONFIG,
28e5ea88 712 OPT_MAX_SEND_FRAG, OPT_SPLIT_SEND_FRAG, OPT_MAX_PIPELINES, OPT_READ_BUF,
582a17d6 713 OPT_SSL3, OPT_TLS1_3, OPT_TLS1_2, OPT_TLS1_1, OPT_TLS1, OPT_DTLS, OPT_DTLS1,
c2f9648d 714 OPT_DTLS1_2, OPT_SCTP, OPT_TIMEOUT, OPT_MTU, OPT_LISTEN, OPT_STATELESS,
3ee1eac2 715 OPT_ID_PREFIX, OPT_SERVERNAME, OPT_SERVERNAME_FATAL,
cd81ac7b 716 OPT_CERT2, OPT_KEY2, OPT_NEXTPROTONEG, OPT_ALPN, OPT_SENDFILE,
7e1b7485 717 OPT_SRTP_PROFILES, OPT_KEYMATEXPORT, OPT_KEYMATEXPORTLEN,
bafe9cf5 718 OPT_KEYLOG_FILE, OPT_MAX_EARLY, OPT_RECV_MAX_EARLY, OPT_EARLY_DATA,
09d62b33 719 OPT_S_NUM_TICKETS, OPT_ANTI_REPLAY, OPT_NO_ANTI_REPLAY, OPT_SCTP_LABEL_BUG,
e2ef7f12 720 OPT_HTTP_SERVER_BINMODE, OPT_NOCANAMES, OPT_IGNORE_UNEXPECTED_EOF, OPT_KTLS,
cd715b7e 721 OPT_USE_ZC_SENDFILE,
b67cb09f 722 OPT_TFO, OPT_CERT_COMP,
3ee1eac2 723 OPT_R_ENUM,
7e1b7485
RS		 724 OPT_S_ENUM,
725 OPT_V_ENUM,
6bd4e3f2
P		 726 OPT_X_ENUM,
727 OPT_PROV_ENUM
7e1b7485
RS		 728} OPTION_CHOICE;
729
44c83ebd 730const OPTIONS s_server_options[] = {
5388f986 731 OPT_SECTION("General"),
7e1b7485 732 {"help", OPT_HELP, '-', "Display this summary"},
5388f986 733 {"ssl_config", OPT_SSL_CONFIG, 's',
359efeac 734 "Configure SSL_CTX using the given configuration value"},
5388f986
RS		 735#ifndef OPENSSL_NO_SSL_TRACE
736 {"trace", OPT_TRACE, '-', "trace protocol messages"},
737#endif
738#ifndef OPENSSL_NO_ENGINE
739 {"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"},
740#endif
741
742 OPT_SECTION("Network"),
32eabe34
MR		 743 {"port", OPT_PORT, 'p',
744 "TCP/IP port to listen on for connections (default is " PORT ")"},
ab69ac00 745 {"accept", OPT_ACCEPT, 's',
a22f9c84 746 "TCP/IP optional host and port to listen on for connections (default is *:" PORT ")"},
ab69ac00 747#ifdef AF_UNIX
7e1b7485 748 {"unix", OPT_UNIX, 's', "Unix domain socket to accept on"},
5388f986 749 {"unlink", OPT_UNLINK, '-', "For -unix, unlink existing socket first"},
ab69ac00
RL		 750#endif
751 {"4", OPT_4, '-', "Use IPv4 only"},
752 {"6", OPT_6, '-', "Use IPv6 only"},
a3e53d56
TS		 753#if defined(TCP_FASTOPEN) && !defined(OPENSSL_NO_TFO)
754 {"tfo", OPT_TFO, '-', "Listen for TCP Fast Open connections"},
755#endif
5388f986
RS		 756
757 OPT_SECTION("Identity"),
7e1b7485 758 {"context", OPT_CONTEXT, 's', "Set session ID context"},
5388f986
RS		 759 {"CAfile", OPT_CAFILE, '<', "PEM format file of CA's"},
760 {"CApath", OPT_CAPATH, '/', "PEM format directory of CA's"},
761 {"CAstore", OPT_CASTORE, ':', "URI to store of CA's"},
762 {"no-CAfile", OPT_NOCAFILE, '-',
763 "Do not load the default certificates file"},
764 {"no-CApath", OPT_NOCAPATH, '-',
765 "Do not load certificates from the default certificates directory"},
766 {"no-CAstore", OPT_NOCASTORE, '-',
767 "Do not load certificates from the default certificates store URI"},
768 {"nocert", OPT_NOCERT, '-', "Don't use any certificates (Anon-DH)"},
7e1b7485
RS		 769 {"verify", OPT_VERIFY, 'n', "Turn on peer certificate verification"},
770 {"Verify", OPT_UPPER_V_VERIFY, 'n',
771 "Turn on peer certificate verification, must have a cert"},
2b264aee 772 {"nameopt", OPT_NAMEOPT, 's', "Certificate subject/issuer name printing options"},
2a33470b 773 {"cert", OPT_CERT, '<', "Server certificate file to use; default " TEST_CERT},
5388f986 774 {"cert2", OPT_CERT2, '<',
2a33470b 775 "Certificate file to use for servername; default " TEST_CERT2},
2b264aee 776 {"certform", OPT_CERTFORM, 'F',
6d382c74 777 "Server certificate file format (PEM/DER/P12); has no effect"},
2b264aee
DDO		 778 {"cert_chain", OPT_CERT_CHAIN, '<',
779 "Server certificate chain file in PEM format"},
780 {"build_chain", OPT_BUILD_CHAIN, '-', "Build server certificate chain"},
7e1b7485
RS		 781 {"serverinfo", OPT_SERVERINFO, 's',
782 "PEM serverinfo file for certificate"},
75c445e4 783 {"key", OPT_KEY, 's',
2b264aee
DDO		 784 "Private key file to use; default is -cert file or else" TEST_CERT},
785 {"key2", OPT_KEY2, '<',
786 "-Private Key file to use for servername if not in -cert2"},
6d382c74 787 {"keyform", OPT_KEYFORM, 'f', "Key format (ENGINE, other values ignored)"},
2a33470b 788 {"pass", OPT_PASS, 's', "Private key and cert file pass phrase source"},
7e1b7485 789 {"dcert", OPT_DCERT, '<',
2b264aee 790 "Second server certificate file to use (usually for DSA)"},
7e1b7485 791 {"dcertform", OPT_DCERTFORM, 'F',
6d382c74 792 "Second server certificate file format (PEM/DER/P12); has no effect"},
2b264aee
DDO		 793 {"dcert_chain", OPT_DCERT_CHAIN, '<',
794 "second server certificate chain file in PEM format"},
7e1b7485
RS		 795 {"dkey", OPT_DKEY, '<',
796 "Second private key file to use (usually for DSA)"},
797 {"dkeyform", OPT_DKEYFORM, 'F',
6d382c74 798 "Second key file format (ENGINE, other values ignored)"},
9c73e48a
DO		 799 {"dpass", OPT_DPASS, 's',
800 "Second private key and cert file pass phrase source"},
2b264aee 801 {"dhparam", OPT_DHPARAM, '<', "DH parameters file to use"},
5388f986
RS		 802 {"servername", OPT_SERVERNAME, 's',
803 "Servername for HostName TLS extension"},
804 {"servername_fatal", OPT_SERVERNAME_FATAL, '-',
359efeac 805 "On servername mismatch send fatal alert (default warning alert)"},
7e1b7485
RS		 806 {"nbio_test", OPT_NBIO_TEST, '-', "Test with the non-blocking test bio"},
807 {"crlf", OPT_CRLF, '-', "Convert LF from terminal into CRLF"},
7e1b7485 808 {"quiet", OPT_QUIET, '-', "No server output"},
7e1b7485
RS		 809 {"no_resume_ephemeral", OPT_NO_RESUME_EPHEMERAL, '-',
810 "Disable caching and tickets if ephemeral (EC)DH is used"},
811 {"www", OPT_WWW, '-', "Respond to a 'GET /' with a status page"},
812 {"WWW", OPT_UPPER_WWW, '-', "Respond to a 'GET with the file ./path"},
09b90e0e
DB		 813 {"ignore_unexpected_eof", OPT_IGNORE_UNEXPECTED_EOF, '-',
814 "Do not treat lack of close_notify from a peer as an error"},
7e1b7485
RS		 815 {"tlsextdebug", OPT_TLSEXTDEBUG, '-',
816 "Hex dump of all TLS extensions received"},
ceab33e2 817 {"HTTP", OPT_HTTP, '-', "Like -WWW but ./path includes HTTP headers"},
9c3bcfa0
RS		 818 {"id_prefix", OPT_ID_PREFIX, 's',
819 "Generate SSL/TLS session IDs prefixed by arg"},
7e1b7485
RS		 820 {"keymatexport", OPT_KEYMATEXPORT, 's',
821 "Export keying material using label"},
822 {"keymatexportlen", OPT_KEYMATEXPORTLEN, 'p',
2a33470b 823 "Export len bytes of keying material; default 20"},
32eabe34 824 {"CRL", OPT_CRL, '<', "CRL file to use"},
2b264aee 825 {"CRLform", OPT_CRLFORM, 'F', "CRL file format (PEM or DER); default PEM"},
32eabe34 826 {"crl_download", OPT_CRL_DOWNLOAD, '-',
2b264aee
DDO		 827 "Download CRLs from distribution points in certificate CDP entries"},
828 {"chainCAfile", OPT_CHAINCAFILE, '<',
829 "CA file for certificate chain (PEM format)"},
32eabe34
MR		 830 {"chainCApath", OPT_CHAINCAPATH, '/',
831 "use dir as certificate store path to build CA certificate chain"},
fd3397fc
RL		 832 {"chainCAstore", OPT_CHAINCASTORE, ':',
833 "use URI as certificate store to build CA certificate chain"},
2b264aee
DDO		 834 {"verifyCAfile", OPT_VERIFYCAFILE, '<',
835 "CA file for certificate verification (PEM format)"},
32eabe34
MR		 836 {"verifyCApath", OPT_VERIFYCAPATH, '/',
837 "use dir as certificate store path to verify CA certificate"},
fd3397fc
RL		 838 {"verifyCAstore", OPT_VERIFYCASTORE, ':',
839 "use URI as certificate store to verify CA certificate"},
32eabe34
MR		 840 {"no_cache", OPT_NO_CACHE, '-', "Disable session cache"},
841 {"ext_cache", OPT_EXT_CACHE, '-',
359efeac 842 "Disable internal cache, set up and use external cache"},
32eabe34
MR		 843 {"verify_return_error", OPT_VERIFY_RET_ERROR, '-',
844 "Close connection on verification error"},
845 {"verify_quiet", OPT_VERIFY_QUIET, '-',
846 "No verify output except verify errors"},
359efeac
DDO		 847 {"ign_eof", OPT_IGN_EOF, '-', "Ignore input EOF (default when -quiet)"},
848 {"no_ign_eof", OPT_NO_IGN_EOF, '-', "Do not ignore input EOF"},
b67cb09f
TS		 849#ifndef OPENSSL_NO_COMP_ALG
850 {"cert_comp", OPT_CERT_COMP, '-', "Pre-compress server certificates"},
851#endif
5388f986 852
3e41ac35 853#ifndef OPENSSL_NO_OCSP
5388f986 854 OPT_SECTION("OCSP"),
32eabe34
MR		 855 {"status", OPT_STATUS, '-', "Request certificate status from server"},
856 {"status_verbose", OPT_STATUS_VERBOSE, '-',
857 "Print more output in certificate status callback"},
858 {"status_timeout", OPT_STATUS_TIMEOUT, 'n',
859 "Status request responder timeout"},
860 {"status_url", OPT_STATUS_URL, 's', "Status request fallback URL"},
80a4ac57
DDO		 861 {"proxy", OPT_PROXY, 's',
862 "[http[s]://]host[:port][/path] of HTTP(S) proxy to use; path is ignored"},
863 {"no_proxy", OPT_NO_PROXY, 's',
864 "List of addresses of servers not to use HTTP(S) proxy for"},
865 {OPT_MORE_STR, 0, 0,
866 "Default from environment variable 'no_proxy', else 'NO_PROXY', else none"},
acf65ae5
MC		 867 {"status_file", OPT_STATUS_FILE, '<',
868 "File containing DER encoded OCSP Response"},
3e41ac35 869#endif
5388f986
RS		 870
871 OPT_SECTION("Debug"),
32eabe34
MR		 872 {"security_debug", OPT_SECURITY_DEBUG, '-',
873 "Print output from SSL/TLS security framework"},
874 {"security_debug_verbose", OPT_SECURITY_DEBUG_VERBOSE, '-',
875 "Print more output from SSL/TLS security framework"},
d6073e27 876 {"brief", OPT_BRIEF, '-',
32eabe34
MR		 877 "Restrict output to brief summary of connection parameters"},
878 {"rev", OPT_REV, '-',
04fb4ec8 879 "act as an echo server that sends back received text reversed"},
5388f986
RS		 880 {"debug", OPT_DEBUG, '-', "Print more output"},
881 {"msg", OPT_MSG, '-', "Show protocol messages"},
882 {"msgfile", OPT_MSGFILE, '>',
883 "File to send output of -msg or -trace, instead of stdout"},
884 {"state", OPT_STATE, '-', "Print the SSL states"},
7e25dd6d 885 {"async", OPT_ASYNC, '-', "Operate in asynchronous mode"},
36b2cfb1 886 {"max_pipelines", OPT_MAX_PIPELINES, 'p',
032c6d21 887 "Maximum number of encrypt/decrypt pipelines to be used"},
5388f986
RS		 888 {"naccept", OPT_NACCEPT, 'p', "Terminate after #num connections"},
889 {"keylogfile", OPT_KEYLOG_FILE, '>', "Write TLS secrets to file"},
890
891 OPT_SECTION("Network"),
892 {"nbio", OPT_NBIO, '-', "Use non-blocking IO"},
893 {"timeout", OPT_TIMEOUT, '-', "Enable timeouts"},
359efeac 894 {"mtu", OPT_MTU, 'p', "Set link-layer MTU"},
36b2cfb1 895 {"read_buf", OPT_READ_BUF, 'p',
dad78fb1 896 "Default read buffer size to be used for connections"},
5388f986
RS		 897 {"split_send_frag", OPT_SPLIT_SEND_FRAG, 'p',
898 "Size used to split data for encrypt pipelines"},
899 {"max_send_frag", OPT_MAX_SEND_FRAG, 'p', "Maximum Size of send frames "},
900
901 OPT_SECTION("Server identity"),
720b6cbe 902 {"psk_identity", OPT_PSK_IDENTITY, 's', "PSK identity to expect"},
14e35350 903#ifndef OPENSSL_NO_PSK
9c3bcfa0 904 {"psk_hint", OPT_PSK_HINT, 's', "PSK identity hint to use"},
9c3bcfa0 905#endif
14e35350 906 {"psk", OPT_PSK, 's', "PSK in hex (without 0x)"},
df894947 907 {"psk_session", OPT_PSK_SESS, '<', "File to read PSK SSL session from"},
9c3bcfa0 908#ifndef OPENSSL_NO_SRP
6d2a1eff 909 {"srpvfile", OPT_SRPVFILE, '<', "(deprecated) The verifier file for SRP"},
9c3bcfa0 910 {"srpuserseed", OPT_SRPUSERSEED, 's',
6d2a1eff 911 "(deprecated) A seed string for a default user salt"},
9c3bcfa0 912#endif
5388f986
RS		 913
914 OPT_SECTION("Protocol and version"),
915 {"max_early_data", OPT_MAX_EARLY, 'n',
916 "The maximum number of bytes of early data as advertised in tickets"},
917 {"recv_max_early_data", OPT_RECV_MAX_EARLY, 'n',
918 "The maximum number of bytes of early data (hard limit)"},
919 {"early_data", OPT_EARLY_DATA, '-', "Attempt to read early data"},
920 {"num_tickets", OPT_S_NUM_TICKETS, 'n',
921 "The number of TLSv1.3 session tickets that a server will automatically issue" },
922 {"anti_replay", OPT_ANTI_REPLAY, '-', "Switch on anti-replay protection (default)"},
923 {"no_anti_replay", OPT_NO_ANTI_REPLAY, '-', "Switch off anti-replay protection"},
924 {"http_server_binmode", OPT_HTTP_SERVER_BINMODE, '-', "opening files in binary mode when acting as http server (-WWW and -HTTP)"},
90fc2c26
NM		 925 {"no_ca_names", OPT_NOCANAMES, '-',
926 "Disable TLS Extension CA Names"},
5388f986 927 {"stateless", OPT_STATELESS, '-', "Require TLSv1.3 cookies"},
9c3bcfa0
RS		 928#ifndef OPENSSL_NO_SSL3
929 {"ssl3", OPT_SSL3, '-', "Just talk SSLv3"},
930#endif
6b01bed2
VD		 931#ifndef OPENSSL_NO_TLS1
932 {"tls1", OPT_TLS1, '-', "Just talk TLSv1"},
933#endif
934#ifndef OPENSSL_NO_TLS1_1
935 {"tls1_1", OPT_TLS1_1, '-', "Just talk TLSv1.1"},
936#endif
937#ifndef OPENSSL_NO_TLS1_2
938 {"tls1_2", OPT_TLS1_2, '-', "just talk TLSv1.2"},
939#endif
582a17d6
MC		 940#ifndef OPENSSL_NO_TLS1_3
941 {"tls1_3", OPT_TLS1_3, '-', "just talk TLSv1.3"},
942#endif
a5ecdc6a 943#ifndef OPENSSL_NO_DTLS
32eabe34 944 {"dtls", OPT_DTLS, '-', "Use any DTLS version"},
fd4e98ec
MC		 945 {"listen", OPT_LISTEN, '-',
946 "Listen for a DTLS ClientHello with a cookie and then connect"},
9c3bcfa0 947#endif
6b01bed2
VD		 948#ifndef OPENSSL_NO_DTLS1
949 {"dtls1", OPT_DTLS1, '-', "Just talk DTLSv1"},
950#endif
951#ifndef OPENSSL_NO_DTLS1_2
952 {"dtls1_2", OPT_DTLS1_2, '-', "Just talk DTLSv1.2"},
953#endif
72d0bc84
MC		 954#ifndef OPENSSL_NO_SCTP
955 {"sctp", OPT_SCTP, '-', "Use SCTP"},
09d62b33 956 {"sctp_label_bug", OPT_SCTP_LABEL_BUG, '-', "Enable SCTP label length bug"},
72d0bc84 957#endif
5388f986
RS		 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
9c3bcfa0 962 {"no_dhe", OPT_NO_DHE, '-', "Disable ephemeral DH"},
9c3bcfa0
RS		 963#ifndef OPENSSL_NO_NEXTPROTONEG
964 {"nextprotoneg", OPT_NEXTPROTONEG, 's',
965 "Set the advertised protocols for the NPN extension (comma-separated list)"},
b07c703f 966#endif
9c3bcfa0
RS		 967 {"alpn", OPT_ALPN, 's',
968 "Set the advertised protocols for the ALPN extension (comma-separated list)"},
cd81ac7b 969#ifndef OPENSSL_NO_KTLS
e2ef7f12 970 {"ktls", OPT_KTLS, '-', "Enable Kernel TLS for sending and receiving"},
cd81ac7b 971 {"sendfile", OPT_SENDFILE, '-', "Use sendfile to response file with -WWW"},
cd715b7e 972 {"zerocopy_sendfile", OPT_USE_ZC_SENDFILE, '-', "Use zerocopy mode of KTLS sendfile"},
cd81ac7b 973#endif
5388f986
RS		 974
975 OPT_R_OPTIONS,
976 OPT_S_OPTIONS,
977 OPT_V_OPTIONS,
5388f986 978 OPT_X_OPTIONS,
6bd4e3f2 979 OPT_PROV_OPTIONS,
5388f986 980 {NULL}
7e1b7485
RS		 981};
982
4bbd4ba6
MC		 983#define IS_PROT_FLAG(o) \
984 (o == OPT_SSL3 || o == OPT_TLS1 || o == OPT_TLS1_1 || o == OPT_TLS1_2 \
582a17d6 985 || o == OPT_TLS1_3 || o == OPT_DTLS || o == OPT_DTLS1 || o == OPT_DTLS1_2)
4bbd4ba6 986
7e1b7485 987int s_server_main(int argc, char *argv[])
0f113f3e 988{
bde136c8 989 ENGINE *engine = NULL;
7e1b7485
RS		 990 EVP_PKEY *s_key = NULL, *s_dkey = NULL;
991 SSL_CONF_CTX *cctx = NULL;
32ec4153 992 const SSL_METHOD *meth = TLS_server_method();
7e1b7485
RS		 993 SSL_EXCERT *exc = NULL;
994 STACK_OF(OPENSSL_STRING) *ssl_args = NULL;
995 STACK_OF(X509) *s_chain = NULL, *s_dchain = NULL;
996 STACK_OF(X509_CRL) *crls = NULL;
997 X509 *s_cert = NULL, *s_dcert = NULL;
0f113f3e 998 X509_VERIFY_PARAM *vpm = NULL;
fd3397fc
RL		 999 const char *CApath = NULL, *CAfile = NULL, *CAstore = NULL;
1000 const char *chCApath = NULL, *chCAfile = NULL, *chCAstore = NULL;
3ee1eac2 1001 char *dpassarg = NULL, *dpass = NULL;
fd3397fc
RL		 1002 char *passarg = NULL, *pass = NULL;
1003 char *vfyCApath = NULL, *vfyCAfile = NULL, *vfyCAstore = NULL;
a7f82a1a 1004 char *crl_file = NULL, *prog;
ab69ac00 1005#ifdef AF_UNIX
0f113f3e
MC		 1006 int unlink_unix_path = 0;
1007#endif
a773b52a 1008 do_server_cb server_cb;
7e1b7485 1009 int vpmtouched = 0, build_chain = 0, no_cache = 0, ext_cache = 0;
54463e4f 1010 char *dhfile = NULL;
37f3a3b3 1011 int no_dhe = 0;
8caab744 1012 int nocert = 0, ret = 1;
fd3397fc 1013 int noCApath = 0, noCAfile = 0, noCAstore = 0;
d382e796
TM		 1014 int s_cert_format = FORMAT_UNDEF, s_key_format = FORMAT_UNDEF;
1015 int s_dcert_format = FORMAT_UNDEF, s_dkey_format = FORMAT_UNDEF;
ab69ac00 1016 int rev = 0, naccept = -1, sdebug = 0;
72d0bc84 1017 int socket_family = AF_UNSPEC, socket_type = SOCK_STREAM, protocol = 0;
d382e796 1018 int state = 0, crl_format = FORMAT_UNDEF, crl_download = 0;
ab69ac00 1019 char *host = NULL;
0c590558 1020 char *port = NULL;
7e1b7485
RS		 1021 unsigned char *context = NULL;
1022 OPTION_CHOICE o;
0f113f3e
MC		 1023 EVP_PKEY *s_key2 = NULL;
1024 X509 *s_cert2 = NULL;
1025 tlsextctx tlsextcbp = { NULL, NULL, SSL_TLSEXT_ERR_ALERT_WARNING };
287d0b94 1026 const char *ssl_config = NULL;
dad78fb1 1027 int read_buf_len = 0;
e481f9b9 1028#ifndef OPENSSL_NO_NEXTPROTONEG
0f113f3e
MC		 1029 const char *next_proto_neg_in = NULL;
1030 tlsextnextprotoctx next_proto = { NULL, 0 };
e481f9b9 1031#endif
0f113f3e
MC		 1032 const char *alpn_in = NULL;
1033 tlsextalpnctx alpn_ctx = { NULL, 0 };
ddac1974 1034#ifndef OPENSSL_NO_PSK
0f113f3e 1035 /* by default do not send a PSK identity hint */
f2ff1432 1036 char *psk_identity_hint = NULL;
ddac1974 1037#endif
14e35350 1038 char *p;
edc032b5 1039#ifndef OPENSSL_NO_SRP
0f113f3e
MC		 1040 char *srpuserseed = NULL;
1041 char *srp_verifier_file = NULL;
edc032b5 1042#endif
dad88680 1043#ifndef OPENSSL_NO_SRTP
1fb6b0bf 1044 char *srtp_profiles = NULL;
dad88680 1045#endif
4bbd4ba6 1046 int min_version = 0, max_version = 0, prot_opt = 0, no_prot_opt = 0;
54463e4f
F		 1047 int s_server_verify = SSL_VERIFY_NONE;
1048 int s_server_session_id_context = 1; /* anything will do */
1049 const char *s_cert_file = TEST_CERT, *s_key_file = NULL, *s_chain_file = NULL;
1050 const char *s_cert_file2 = TEST_CERT2, *s_key_file2 = NULL;
1051 char *s_dcert_file = NULL, *s_dkey_file = NULL, *s_dchain_file = NULL;
057c676a
RL		 1052#ifndef OPENSSL_NO_OCSP
1053 int s_tlsextstatus = 0;
1054#endif
1055 int no_resume_ephemeral = 0;
28e5ea88 1056 unsigned int max_send_fragment = 0;
54463e4f
F		 1057 unsigned int split_send_fragment = 0, max_pipelines = 0;
1058 const char *s_serverinfo_file = NULL;
4bf73e9f 1059 const char *keylog_file = NULL;
bafe9cf5 1060 int max_early_data = -1, recv_max_early_data = -1;
df894947 1061 char *psksessf = NULL;
90fc2c26 1062 int no_ca_names = 0;
09d62b33
MT		 1063#ifndef OPENSSL_NO_SCTP
1064 int sctp_label_bug = 0;
1065#endif
09b90e0e 1066 int ignore_unexpected_eof = 0;
e2ef7f12
TZ		 1067#ifndef OPENSSL_NO_KTLS
1068 int enable_ktls = 0;
1069#endif
a3e53d56 1070 int tfo = 0;
b67cb09f 1071 int cert_comp = 0;
54463e4f
F		 1072
1073 /* Init of few remaining global variables */
0f113f3e
MC		 1074 local_argc = argc;
1075 local_argv = argv;
d02b48c6 1076
54463e4f
F		 1077 ctx = ctx2 = NULL;
1078 s_nbio = s_nbio_test = 0;
1079 www = 0;
1080 bio_s_out = NULL;
1081 s_debug = 0;
1082 s_msg = 0;
1083 s_quiet = 0;
1084 s_brief = 0;
1085 async = 0;
cd81ac7b 1086 use_sendfile = 0;
cd715b7e 1087 use_zc_sendfile = 0;
54463e4f 1088
0c590558 1089 port = OPENSSL_strdup(PORT);
0f113f3e 1090 cctx = SSL_CONF_CTX_new();
7e1b7485 1091 vpm = X509_VERIFY_PARAM_new();
0c590558 1092 if (port == NULL || cctx == NULL || vpm == NULL)
0f113f3e 1093 goto end;
d6073e27
F		 1094 SSL_CONF_CTX_set_flags(cctx,
1095 SSL_CONF_FLAG_SERVER | SSL_CONF_FLAG_CMDLINE);
7e1b7485
RS		 1096
1097 prog = opt_init(argc, argv, s_server_options);
1098 while ((o = opt_next()) != OPT_EOF) {
4bbd4ba6
MC		 1099 if (IS_PROT_FLAG(o) && ++prot_opt > 1) {
1100 BIO_printf(bio_err, "Cannot supply multiple protocol flags\n");
1101 goto end;
1102 }
1103 if (IS_NO_PROT_FLAG(o))
1104 no_prot_opt++;
1105 if (prot_opt == 1 && no_prot_opt) {
d6073e27
F		 1106 BIO_printf(bio_err,
1107 "Cannot supply both a protocol flag and '-no_<prot>'\n");
4bbd4ba6
MC		 1108 goto end;
1109 }
7e1b7485
RS		 1110 switch (o) {
1111 case OPT_EOF:
1112 case OPT_ERR:
1113 opthelp:
1114 BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
1115 goto end;
1116 case OPT_HELP:
1117 opt_help(s_server_options);
1118 ret = 0;
1119 goto end;
0f113f3e 1120
ab69ac00
RL		 1121 case OPT_4:
1122#ifdef AF_UNIX
1123 if (socket_family == AF_UNIX) {
1124 OPENSSL_free(host); host = NULL;
1125 OPENSSL_free(port); port = NULL;
1126 }
1127#endif
1128 socket_family = AF_INET;
1129 break;
1130 case OPT_6:
1131 if (1) {
1132#ifdef AF_INET6
1133#ifdef AF_UNIX
1134 if (socket_family == AF_UNIX) {
1135 OPENSSL_free(host); host = NULL;
1136 OPENSSL_free(port); port = NULL;
1137 }
1138#endif
1139 socket_family = AF_INET6;
1140 } else {
1141#endif
1142 BIO_printf(bio_err, "%s: IPv6 domain sockets unsupported\n", prog);
1143 goto end;
1144 }
1145 break;
7e1b7485 1146 case OPT_PORT:
ab69ac00
RL		 1147#ifdef AF_UNIX
1148 if (socket_family == AF_UNIX) {
1149 socket_family = AF_UNSPEC;
1150 }
1151#endif
1152 OPENSSL_free(port); port = NULL;
1153 OPENSSL_free(host); host = NULL;
1154 if (BIO_parse_hostserv(opt_arg(), NULL, &port, BIO_PARSE_PRIO_SERV) < 1) {
1155 BIO_printf(bio_err,
1156 "%s: -port argument malformed or ambiguous\n",
1157 port);
1158 goto end;
1159 }
1160 break;
1161 case OPT_ACCEPT:
1162#ifdef AF_UNIX
1163 if (socket_family == AF_UNIX) {
1164 socket_family = AF_UNSPEC;
1165 }
1166#endif
1167 OPENSSL_free(port); port = NULL;
1168 OPENSSL_free(host); host = NULL;
1169 if (BIO_parse_hostserv(opt_arg(), &host, &port, BIO_PARSE_PRIO_SERV) < 1) {
1170 BIO_printf(bio_err,
1171 "%s: -accept argument malformed or ambiguous\n",
1172 port);
7e1b7485 1173 goto end;
ab69ac00 1174 }
7e1b7485 1175 break;
ab69ac00 1176#ifdef AF_UNIX
7e1b7485 1177 case OPT_UNIX:
ab69ac00 1178 socket_family = AF_UNIX;
3d484574 1179 OPENSSL_free(host); host = OPENSSL_strdup(opt_arg());
a6a2dd9f
JJ		 1180 if (host == NULL)
1181 goto end;
ab69ac00 1182 OPENSSL_free(port); port = NULL;
7e1b7485
RS		 1183 break;
1184 case OPT_UNLINK:
0f113f3e 1185 unlink_unix_path = 1;
7e1b7485 1186 break;
ab69ac00 1187#endif
7e1b7485
RS		 1188 case OPT_NACCEPT:
1189 naccept = atol(opt_arg());
1190 break;
1191 case OPT_VERIFY:
0f113f3e 1192 s_server_verify = SSL_VERIFY_PEER | SSL_VERIFY_CLIENT_ONCE;
acc00492 1193 verify_args.depth = atoi(opt_arg());
0f113f3e 1194 if (!s_quiet)
acc00492 1195 BIO_printf(bio_err, "verify depth is %d\n", verify_args.depth);
7e1b7485
RS		 1196 break;
1197 case OPT_UPPER_V_VERIFY:
0f113f3e
MC		 1198 s_server_verify =
1199 SSL_VERIFY_PEER | SSL_VERIFY_FAIL_IF_NO_PEER_CERT |
1200 SSL_VERIFY_CLIENT_ONCE;
acc00492 1201 verify_args.depth = atoi(opt_arg());
0f113f3e
MC		 1202 if (!s_quiet)
1203 BIO_printf(bio_err,
1204 "verify depth is %d, must return a certificate\n",
acc00492 1205 verify_args.depth);
7e1b7485
RS		 1206 break;
1207 case OPT_CONTEXT:
1208 context = (unsigned char *)opt_arg();
1209 break;
1210 case OPT_CERT:
1211 s_cert_file = opt_arg();
1212 break;
a7c04f2b
DB		 1213 case OPT_NAMEOPT:
1214 if (!set_nameopt(opt_arg()))
1215 goto end;
1216 break;
7e1b7485
RS		 1217 case OPT_CRL:
1218 crl_file = opt_arg();
1219 break;
1220 case OPT_CRL_DOWNLOAD:
0f113f3e 1221 crl_download = 1;
7e1b7485 1222 break;
7e1b7485
RS		 1223 case OPT_SERVERINFO:
1224 s_serverinfo_file = opt_arg();
1225 break;
7e1b7485 1226 case OPT_CERTFORM:
6d382c74 1227 if (!opt_format(opt_arg(), OPT_FMT_ANY, &s_cert_format))
7e1b7485
RS		 1228 goto opthelp;
1229 break;
1230 case OPT_KEY:
1231 s_key_file = opt_arg();
1232 break;
1233 case OPT_KEYFORM:
6d382c74 1234 if (!opt_format(opt_arg(), OPT_FMT_ANY, &s_key_format))
7e1b7485
RS		 1235 goto opthelp;
1236 break;
1237 case OPT_PASS:
1238 passarg = opt_arg();
1239 break;
1240 case OPT_CERT_CHAIN:
1241 s_chain_file = opt_arg();
1242 break;
1243 case OPT_DHPARAM:
1244 dhfile = opt_arg();
1245 break;
1246 case OPT_DCERTFORM:
6d382c74 1247 if (!opt_format(opt_arg(), OPT_FMT_ANY, &s_dcert_format))
7e1b7485
RS		 1248 goto opthelp;
1249 break;
1250 case OPT_DCERT:
1251 s_dcert_file = opt_arg();
1252 break;
1253 case OPT_DKEYFORM:
6d382c74 1254 if (!opt_format(opt_arg(), OPT_FMT_ANY, &s_dkey_format))
7e1b7485
RS		 1255 goto opthelp;
1256 break;
1257 case OPT_DPASS:
1258 dpassarg = opt_arg();
1259 break;
1260 case OPT_DKEY:
1261 s_dkey_file = opt_arg();
1262 break;
1263 case OPT_DCERT_CHAIN:
1264 s_dchain_file = opt_arg();
1265 break;
1266 case OPT_NOCERT:
0f113f3e 1267 nocert = 1;
7e1b7485
RS		 1268 break;
1269 case OPT_CAPATH:
1270 CApath = opt_arg();
1271 break;
2b6bcb70
MC		 1272 case OPT_NOCAPATH:
1273 noCApath = 1;
1274 break;
7e1b7485
RS		 1275 case OPT_CHAINCAPATH:
1276 chCApath = opt_arg();
1277 break;
1278 case OPT_VERIFYCAPATH:
1279 vfyCApath = opt_arg();
1280 break;
fd3397fc
RL		 1281 case OPT_CASTORE:
1282 CAstore = opt_arg();
1283 break;
1284 case OPT_NOCASTORE:
1285 noCAstore = 1;
1286 break;
1287 case OPT_CHAINCASTORE:
1288 chCAstore = opt_arg();
1289 break;
1290 case OPT_VERIFYCASTORE:
1291 vfyCAstore = opt_arg();
1292 break;
7e1b7485 1293 case OPT_NO_CACHE:
0f113f3e 1294 no_cache = 1;
7e1b7485
RS		 1295 break;
1296 case OPT_EXT_CACHE:
0f113f3e 1297 ext_cache = 1;
7e1b7485
RS		 1298 break;
1299 case OPT_CRLFORM:
1300 if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &crl_format))
1301 goto opthelp;
1302 break;
1303 case OPT_S_CASES:
394159da 1304 case OPT_S_NUM_TICKETS:
3bb5e5b0
MC		 1305 case OPT_ANTI_REPLAY:
1306 case OPT_NO_ANTI_REPLAY:
7e1b7485
RS		 1307 if (ssl_args == NULL)
1308 ssl_args = sk_OPENSSL_STRING_new_null();
1309 if (ssl_args == NULL
1310 || !sk_OPENSSL_STRING_push(ssl_args, opt_flag())
1311 || !sk_OPENSSL_STRING_push(ssl_args, opt_arg())) {
1312 BIO_printf(bio_err, "%s: Memory allocation failure\n", prog);
1313 goto end;
1314 }
1315 break;
1316 case OPT_V_CASES:
1317 if (!opt_verify(o, vpm))
1318 goto end;
1319 vpmtouched++;
1320 break;
1321 case OPT_X_CASES:
1322 if (!args_excert(o, &exc))
1323 goto end;
1324 break;
1325 case OPT_VERIFY_RET_ERROR:
acc00492 1326 verify_args.return_error = 1;
7e1b7485
RS		 1327 break;
1328 case OPT_VERIFY_QUIET:
acc00492 1329 verify_args.quiet = 1;
7e1b7485
RS		 1330 break;
1331 case OPT_BUILD_CHAIN:
0f113f3e 1332 build_chain = 1;
7e1b7485
RS		 1333 break;
1334 case OPT_CAFILE:
1335 CAfile = opt_arg();
1336 break;
2b6bcb70
MC		 1337 case OPT_NOCAFILE:
1338 noCAfile = 1;
1339 break;
7e1b7485
RS		 1340 case OPT_CHAINCAFILE:
1341 chCAfile = opt_arg();
1342 break;
1343 case OPT_VERIFYCAFILE:
1344 vfyCAfile = opt_arg();
1345 break;
1346 case OPT_NBIO:
0f113f3e 1347 s_nbio = 1;
7e1b7485
RS		 1348 break;
1349 case OPT_NBIO_TEST:
1350 s_nbio = s_nbio_test = 1;
1351 break;
1352 case OPT_IGN_EOF:
0f113f3e 1353 s_ign_eof = 1;
7e1b7485
RS		 1354 break;
1355 case OPT_NO_IGN_EOF:
0f113f3e 1356 s_ign_eof = 0;
7e1b7485
RS		 1357 break;
1358 case OPT_DEBUG:
0f113f3e 1359 s_debug = 1;
7e1b7485 1360 break;
7e1b7485 1361 case OPT_TLSEXTDEBUG:
0f113f3e 1362 s_tlsextdebug = 1;
7e1b7485
RS		 1363 break;
1364 case OPT_STATUS:
057c676a 1365#ifndef OPENSSL_NO_OCSP
0f113f3e 1366 s_tlsextstatus = 1;
057c676a 1367#endif
7e1b7485
RS		 1368 break;
1369 case OPT_STATUS_VERBOSE:
057c676a 1370#ifndef OPENSSL_NO_OCSP
7e1b7485 1371 s_tlsextstatus = tlscstatp.verbose = 1;
057c676a 1372#endif
7e1b7485
RS		 1373 break;
1374 case OPT_STATUS_TIMEOUT:
057c676a 1375#ifndef OPENSSL_NO_OCSP
0f113f3e 1376 s_tlsextstatus = 1;
7e1b7485 1377 tlscstatp.timeout = atoi(opt_arg());
80a4ac57
DDO		 1378#endif
1379 break;
1380 case OPT_PROXY:
1381#ifndef OPENSSL_NO_OCSP
1382 tlscstatp.proxy = opt_arg();
1383#endif
1384 break;
1385 case OPT_NO_PROXY:
1386#ifndef OPENSSL_NO_OCSP
1387 tlscstatp.no_proxy = opt_arg();
057c676a 1388#endif
7e1b7485
RS		 1389 break;
1390 case OPT_STATUS_URL:
3e41ac35 1391#ifndef OPENSSL_NO_OCSP
0f113f3e 1392 s_tlsextstatus = 1;
7932982b 1393 if (!OSSL_HTTP_parse_url(opt_arg(), &tlscstatp.use_ssl, NULL,
d7fcee3b 1394 &tlscstatp.host, &tlscstatp.port, NULL,
7932982b
DDO		 1395 &tlscstatp.path, NULL, NULL)) {
1396 BIO_printf(bio_err, "Error parsing -status_url argument\n");
7e1b7485 1397 goto end;
0f113f3e 1398 }
acf65ae5
MC		 1399#endif
1400 break;
1401 case OPT_STATUS_FILE:
1402#ifndef OPENSSL_NO_OCSP
1403 s_tlsextstatus = 1;
1404 tlscstatp.respin = opt_arg();
3e41ac35 1405#endif
7e1b7485 1406 break;
7e1b7485 1407 case OPT_MSG:
0f113f3e 1408 s_msg = 1;
7e1b7485
RS		 1409 break;
1410 case OPT_MSGFILE:
1411 bio_s_msg = BIO_new_file(opt_arg(), "w");
625b0990 1412 if (bio_s_msg == NULL) {
1413 BIO_printf(bio_err, "Error writing file %s\n", opt_arg());
1414 goto end;
1415 }
7e1b7485 1416 break;
7e1b7485 1417 case OPT_TRACE:
9c3bcfa0 1418#ifndef OPENSSL_NO_SSL_TRACE
0f113f3e 1419 s_msg = 2;
0f113f3e 1420#endif
1c03c81f 1421 break;
7e1b7485 1422 case OPT_SECURITY_DEBUG:
0f113f3e 1423 sdebug = 1;
7e1b7485
RS		 1424 break;
1425 case OPT_SECURITY_DEBUG_VERBOSE:
0f113f3e 1426 sdebug = 2;
7e1b7485
RS		 1427 break;
1428 case OPT_STATE:
0f113f3e 1429 state = 1;
7e1b7485
RS		 1430 break;
1431 case OPT_CRLF:
0f113f3e 1432 s_crlf = 1;
7e1b7485
RS		 1433 break;
1434 case OPT_QUIET:
0f113f3e 1435 s_quiet = 1;
7e1b7485
RS		 1436 break;
1437 case OPT_BRIEF:
acc00492 1438 s_quiet = s_brief = verify_args.quiet = 1;
7e1b7485 1439 break;
7e1b7485 1440 case OPT_NO_DHE:
0f113f3e 1441 no_dhe = 1;
7e1b7485 1442 break;
7e1b7485 1443 case OPT_NO_RESUME_EPHEMERAL:
0f113f3e 1444 no_resume_ephemeral = 1;
7e1b7485 1445 break;
720b6cbe 1446 case OPT_PSK_IDENTITY:
720b6cbe 1447 psk_identity = opt_arg();
720b6cbe 1448 break;
7e1b7485 1449 case OPT_PSK_HINT:
6b01bed2 1450#ifndef OPENSSL_NO_PSK
7e1b7485 1451 psk_identity_hint = opt_arg();
6b01bed2 1452#endif
7e1b7485
RS		 1453 break;
1454 case OPT_PSK:
1455 for (p = psk_key = opt_arg(); *p; p++) {
18295f0c 1456 if (isxdigit(_UC(*p)))
0f113f3e 1457 continue;
e5712012 1458 BIO_printf(bio_err, "Not a hex number '%s'\n", psk_key);
7e1b7485 1459 goto end;
0f113f3e 1460 }
6b01bed2 1461 break;
df894947
MC		 1462 case OPT_PSK_SESS:
1463 psksessf = opt_arg();
1464 break;
7e1b7485 1465 case OPT_SRPVFILE:
6b01bed2 1466#ifndef OPENSSL_NO_SRP
7e1b7485 1467 srp_verifier_file = opt_arg();
0d5301af
KR		 1468 if (min_version < TLS1_VERSION)
1469 min_version = TLS1_VERSION;
6b01bed2 1470#endif
7e1b7485
RS		 1471 break;
1472 case OPT_SRPUSERSEED:
6b01bed2 1473#ifndef OPENSSL_NO_SRP
7e1b7485 1474 srpuserseed = opt_arg();
0d5301af
KR		 1475 if (min_version < TLS1_VERSION)
1476 min_version = TLS1_VERSION;
0f113f3e 1477#endif
6b01bed2 1478 break;
7e1b7485 1479 case OPT_REV:
0f113f3e 1480 rev = 1;
7e1b7485
RS		 1481 break;
1482 case OPT_WWW:
0f113f3e 1483 www = 1;
7e1b7485
RS		 1484 break;
1485 case OPT_UPPER_WWW:
0f113f3e 1486 www = 2;
7e1b7485
RS		 1487 break;
1488 case OPT_HTTP:
0f113f3e 1489 www = 3;
7e1b7485 1490 break;
287d0b94
DSH		 1491 case OPT_SSL_CONFIG:
1492 ssl_config = opt_arg();
1493 break;
7e1b7485 1494 case OPT_SSL3:
0d5301af
KR		 1495 min_version = SSL3_VERSION;
1496 max_version = SSL3_VERSION;
9c3bcfa0 1497 break;
582a17d6
MC		 1498 case OPT_TLS1_3:
1499 min_version = TLS1_3_VERSION;
1500 max_version = TLS1_3_VERSION;
1501 break;
7e1b7485 1502 case OPT_TLS1_2:
0d5301af
KR		 1503 min_version = TLS1_2_VERSION;
1504 max_version = TLS1_2_VERSION;
7e1b7485
RS		 1505 break;
1506 case OPT_TLS1_1:
0d5301af
KR		 1507 min_version = TLS1_1_VERSION;
1508 max_version = TLS1_1_VERSION;
7e1b7485
RS		 1509 break;
1510 case OPT_TLS1:
0d5301af
KR		 1511 min_version = TLS1_VERSION;
1512 max_version = TLS1_VERSION;
7e1b7485 1513 break;
7e1b7485 1514 case OPT_DTLS:
6b01bed2 1515#ifndef OPENSSL_NO_DTLS
4407d070 1516 meth = DTLS_server_method();
0f113f3e 1517 socket_type = SOCK_DGRAM;
6b01bed2 1518#endif
7e1b7485
RS		 1519 break;
1520 case OPT_DTLS1:
0d5301af
KR		 1521#ifndef OPENSSL_NO_DTLS
1522 meth = DTLS_server_method();
1523 min_version = DTLS1_VERSION;
1524 max_version = DTLS1_VERSION;
0f113f3e 1525 socket_type = SOCK_DGRAM;
6b01bed2 1526#endif
7e1b7485
RS		 1527 break;
1528 case OPT_DTLS1_2:
0d5301af
KR		 1529#ifndef OPENSSL_NO_DTLS
1530 meth = DTLS_server_method();
1531 min_version = DTLS1_2_VERSION;
1532 max_version = DTLS1_2_VERSION;
0f113f3e 1533 socket_type = SOCK_DGRAM;
72d0bc84
MC		 1534#endif
1535 break;
1536 case OPT_SCTP:
1537#ifndef OPENSSL_NO_SCTP
1538 protocol = IPPROTO_SCTP;
09d62b33
MT		 1539#endif
1540 break;
1541 case OPT_SCTP_LABEL_BUG:
1542#ifndef OPENSSL_NO_SCTP
1543 sctp_label_bug = 1;
6b01bed2 1544#endif
7e1b7485
RS		 1545 break;
1546 case OPT_TIMEOUT:
6b01bed2 1547#ifndef OPENSSL_NO_DTLS
0f113f3e 1548 enable_timeouts = 1;
6b01bed2 1549#endif
7e1b7485
RS		 1550 break;
1551 case OPT_MTU:
6b01bed2 1552#ifndef OPENSSL_NO_DTLS
7e1b7485 1553 socket_mtu = atol(opt_arg());
6b01bed2 1554#endif
7e1b7485 1555 break;
fd4e98ec 1556 case OPT_LISTEN:
6b01bed2 1557#ifndef OPENSSL_NO_DTLS
fd4e98ec 1558 dtlslisten = 1;
0f113f3e 1559#endif
6b01bed2 1560 break;
c2f9648d
MC		 1561 case OPT_STATELESS:
1562 stateless = 1;
1563 break;
7e1b7485
RS		 1564 case OPT_ID_PREFIX:
1565 session_id_prefix = opt_arg();
1566 break;
1567 case OPT_ENGINE:
538404d2
DO		 1568#ifndef OPENSSL_NO_ENGINE
1569 engine = setup_engine(opt_arg(), s_debug);
1570#endif
7e1b7485 1571 break;
3ee1eac2
RS		 1572 case OPT_R_CASES:
1573 if (!opt_rand(o))
1574 goto end;
7e1b7485 1575 break;
6bd4e3f2
P		 1576 case OPT_PROV_CASES:
1577 if (!opt_provider(o))
1578 goto end;
1579 break;
7e1b7485
RS		 1580 case OPT_SERVERNAME:
1581 tlsextcbp.servername = opt_arg();
1582 break;
1583 case OPT_SERVERNAME_FATAL:
0f113f3e 1584 tlsextcbp.extension_error = SSL_TLSEXT_ERR_ALERT_FATAL;
7e1b7485
RS		 1585 break;
1586 case OPT_CERT2:
1587 s_cert_file2 = opt_arg();
1588 break;
1589 case OPT_KEY2:
1590 s_key_file2 = opt_arg();
1591 break;
7e1b7485 1592 case OPT_NEXTPROTONEG:
9c3bcfa0 1593# ifndef OPENSSL_NO_NEXTPROTONEG
7e1b7485 1594 next_proto_neg_in = opt_arg();
e481f9b9 1595#endif
9c3bcfa0 1596 break;
7e1b7485
RS		 1597 case OPT_ALPN:
1598 alpn_in = opt_arg();
1599 break;
7e1b7485 1600 case OPT_SRTP_PROFILES:
dad88680 1601#ifndef OPENSSL_NO_SRTP
7e1b7485 1602 srtp_profiles = opt_arg();
dad88680 1603#endif
d6316025 1604 break;
7e1b7485
RS		 1605 case OPT_KEYMATEXPORT:
1606 keymatexportlabel = opt_arg();
1607 break;
1608 case OPT_KEYMATEXPORTLEN:
1609 keymatexportlen = atoi(opt_arg());
0f113f3e 1610 break;
7e25dd6d
MC		 1611 case OPT_ASYNC:
1612 async = 1;
1613 break;
28e5ea88
F		 1614 case OPT_MAX_SEND_FRAG:
1615 max_send_fragment = atoi(opt_arg());
28e5ea88 1616 break;
032c6d21
MC		 1617 case OPT_SPLIT_SEND_FRAG:
1618 split_send_fragment = atoi(opt_arg());
032c6d21
MC		 1619 break;
1620 case OPT_MAX_PIPELINES:
1621 max_pipelines = atoi(opt_arg());
1622 break;
dad78fb1
MC		 1623 case OPT_READ_BUF:
1624 read_buf_len = atoi(opt_arg());
1625 break;
4bf73e9f
PW		 1626 case OPT_KEYLOG_FILE:
1627 keylog_file = opt_arg();
1628 break;
048b1893
MC		 1629 case OPT_MAX_EARLY:
1630 max_early_data = atoi(opt_arg());
6746648c
MC		 1631 if (max_early_data < 0) {
1632 BIO_printf(bio_err, "Invalid value for max_early_data\n");
1633 goto end;
1634 }
048b1893 1635 break;
bafe9cf5
MC		 1636 case OPT_RECV_MAX_EARLY:
1637 recv_max_early_data = atoi(opt_arg());
1638 if (recv_max_early_data < 0) {
1639 BIO_printf(bio_err, "Invalid value for recv_max_early_data\n");
1640 goto end;
1641 }
1642 break;
e0655186
MC		 1643 case OPT_EARLY_DATA:
1644 early_data = 1;
c39e4048
BK		 1645 if (max_early_data == -1)
1646 max_early_data = SSL3_RT_MAX_PLAIN_LENGTH;
e0655186 1647 break;
c3be39f2
LZ		 1648 case OPT_HTTP_SERVER_BINMODE:
1649 http_server_binmode = 1;
1650 break;
90fc2c26
NM		 1651 case OPT_NOCANAMES:
1652 no_ca_names = 1;
1653 break;
e2ef7f12
TZ		 1654 case OPT_KTLS:
1655#ifndef OPENSSL_NO_KTLS
1656 enable_ktls = 1;
1657#endif
1658 break;
cd81ac7b
TZ		 1659 case OPT_SENDFILE:
1660#ifndef OPENSSL_NO_KTLS
1661 use_sendfile = 1;
cd715b7e
MM		 1662#endif
1663 break;
1664 case OPT_USE_ZC_SENDFILE:
1665#ifndef OPENSSL_NO_KTLS
1666 use_zc_sendfile = 1;
cd81ac7b
TZ		 1667#endif
1668 break;
09b90e0e
DB		 1669 case OPT_IGNORE_UNEXPECTED_EOF:
1670 ignore_unexpected_eof = 1;
1671 break;
a3e53d56
TS		 1672 case OPT_TFO:
1673 tfo = 1;
1674 break;
b67cb09f
TS		 1675 case OPT_CERT_COMP:
1676 cert_comp = 1;
1677 break;
0f113f3e 1678 }
0f113f3e 1679 }
021410ea
RS		 1680
1681 /* No extra arguments. */
d9f07357 1682 if (!opt_check_rest_arg(NULL))
021410ea 1683 goto opthelp;
7e1b7485 1684
3ad60309
DDO		 1685 if (!app_RAND_load())
1686 goto end;
1687
837f87c2
PY		 1688#ifndef OPENSSL_NO_NEXTPROTONEG
1689 if (min_version == TLS1_3_VERSION && next_proto_neg_in != NULL) {
1690 BIO_printf(bio_err, "Cannot supply -nextprotoneg with TLSv1.3\n");
1691 goto opthelp;
1692 }
1693#endif
a5ecdc6a 1694#ifndef OPENSSL_NO_DTLS
0f113f3e
MC		 1695 if (www && socket_type == SOCK_DGRAM) {
1696 BIO_printf(bio_err, "Can't use -HTTP, -www or -WWW with DTLS\n");
1697 goto end;
1698 }
fd4e98ec
MC		 1699
1700 if (dtlslisten && socket_type != SOCK_DGRAM) {
1701 BIO_printf(bio_err, "Can only use -listen with DTLS\n");
1702 goto end;
1703 }
0f113f3e
MC		 1704#endif
1705
a3e53d56
TS		 1706 if (tfo && socket_type != SOCK_STREAM) {
1707 BIO_printf(bio_err, "Can only use -tfo with TLS\n");
1708 goto end;
1709 }
1710
c2f9648d
MC		 1711 if (stateless && socket_type != SOCK_STREAM) {
1712 BIO_printf(bio_err, "Can only use --stateless with TLS\n");
1713 goto end;
1714 }
1715
ab69ac00
RL		 1716#ifdef AF_UNIX
1717 if (socket_family == AF_UNIX && socket_type != SOCK_STREAM) {
0f113f3e
MC		 1718 BIO_printf(bio_err,
1719 "Can't use unix sockets and datagrams together\n");
1720 goto end;
1721 }
ab69ac00 1722#endif
6ef40f1f
MC		 1723 if (early_data && (www > 0 || rev)) {
1724 BIO_printf(bio_err,
1725 "Can't use -early_data in combination with -www, -WWW, -HTTP, or -rev\n");
1726 goto end;
1727 }
2900fc8a 1728
72d0bc84
MC		 1729#ifndef OPENSSL_NO_SCTP
1730 if (protocol == IPPROTO_SCTP) {
1731 if (socket_type != SOCK_DGRAM) {
1732 BIO_printf(bio_err, "Can't use -sctp without DTLS\n");
1733 goto end;
1734 }
1735 /* SCTP is unusual. It uses DTLS over a SOCK_STREAM protocol */
1736 socket_type = SOCK_STREAM;
1737 }
1738#endif
032c6d21 1739
cd81ac7b 1740#ifndef OPENSSL_NO_KTLS
cd715b7e
MM		 1741 if (use_zc_sendfile && !use_sendfile) {
1742 BIO_printf(bio_out, "Warning: -zerocopy_sendfile depends on -sendfile, enabling -sendfile now.\n");
1743 use_sendfile = 1;
1744 }
1745
e2ef7f12
TZ		 1746 if (use_sendfile && enable_ktls == 0) {
1747 BIO_printf(bio_out, "Warning: -sendfile depends on -ktls, enabling -ktls now.\n");
1748 enable_ktls = 1;
1749 }
1750
cd81ac7b
TZ		 1751 if (use_sendfile && www <= 1) {
1752 BIO_printf(bio_err, "Can't use -sendfile without -WWW or -HTTP\n");
1753 goto end;
1754 }
1755#endif
1756
7e1b7485 1757 if (!app_passwd(passarg, dpassarg, &pass, &dpass)) {
0f113f3e
MC		 1758 BIO_printf(bio_err, "Error getting password\n");
1759 goto end;
1760 }
826a42a0 1761
0f113f3e
MC		 1762 if (s_key_file == NULL)
1763 s_key_file = s_cert_file;
e481f9b9 1764
0f113f3e
MC		 1765 if (s_key_file2 == NULL)
1766 s_key_file2 = s_cert_file2;
ed3883d2 1767
7e1b7485 1768 if (!load_excert(&exc))
0f113f3e
MC		 1769 goto end;
1770
1771 if (nocert == 0) {
bde136c8 1772 s_key = load_key(s_key_file, s_key_format, 0, pass, engine,
50eb2a50 1773 "server certificate private key");
01c12100 1774 if (s_key == NULL)
0f113f3e 1775 goto end;
826a42a0 1776
d382e796
TM		 1777 s_cert = load_cert_pass(s_cert_file, s_cert_format, 1, pass,
1778 "server certificate");
0f113f3e 1779
01c12100 1780 if (s_cert == NULL)
0f113f3e 1781 goto end;
2234212c 1782 if (s_chain_file != NULL) {
ea51096e 1783 if (!load_certs(s_chain_file, 0, &s_chain, NULL,
0996dc54 1784 "server certificate chain"))
0f113f3e
MC		 1785 goto end;
1786 }
e481f9b9 1787
2234212c 1788 if (tlsextcbp.servername != NULL) {
bde136c8 1789 s_key2 = load_key(s_key_file2, s_key_format, 0, pass, engine,
50eb2a50 1790 "second server certificate private key");
01c12100 1791 if (s_key2 == NULL)
0f113f3e 1792 goto end;
0f113f3e 1793
d382e796 1794 s_cert2 = load_cert_pass(s_cert_file2, s_cert_format, 1, pass,
50eb2a50 1795 "second server certificate");
0f113f3e 1796
01c12100 1797 if (s_cert2 == NULL)
0f113f3e 1798 goto end;
0f113f3e 1799 }
0f113f3e 1800 }
e481f9b9 1801#if !defined(OPENSSL_NO_NEXTPROTONEG)
0f113f3e 1802 if (next_proto_neg_in) {
f2ff1432 1803 next_proto.data = next_protos_parse(&next_proto.len, next_proto_neg_in);
0f113f3e
MC		 1804 if (next_proto.data == NULL)
1805 goto end;
0f113f3e 1806 }
e481f9b9 1807#endif
0f113f3e
MC		 1808 alpn_ctx.data = NULL;
1809 if (alpn_in) {
f2ff1432 1810 alpn_ctx.data = next_protos_parse(&alpn_ctx.len, alpn_in);
0f113f3e
MC		 1811 if (alpn_ctx.data == NULL)
1812 goto end;
0f113f3e 1813 }
0f113f3e 1814
2234212c 1815 if (crl_file != NULL) {
0f113f3e 1816 X509_CRL *crl;
d382e796 1817 crl = load_crl(crl_file, crl_format, 0, "CRL");
9d5aca65 1818 if (crl == NULL)
0f113f3e 1819 goto end;
0f113f3e 1820 crls = sk_X509_CRL_new_null();
2234212c 1821 if (crls == NULL || !sk_X509_CRL_push(crls, crl)) {
0f113f3e
MC		 1822 BIO_puts(bio_err, "Error adding CRL\n");
1823 ERR_print_errors(bio_err);
1824 X509_CRL_free(crl);
1825 goto end;
1826 }
1827 }
1828
2234212c 1829 if (s_dcert_file != NULL) {
d02b48c6 1830
0f113f3e
MC		 1831 if (s_dkey_file == NULL)
1832 s_dkey_file = s_dcert_file;
1833
7e1b7485 1834 s_dkey = load_key(s_dkey_file, s_dkey_format,
50eb2a50 1835 0, dpass, engine, "second certificate private key");
01c12100 1836 if (s_dkey == NULL)
0f113f3e 1837 goto end;
0f113f3e 1838
d382e796 1839 s_dcert = load_cert_pass(s_dcert_file, s_dcert_format, 1, dpass,
22dddfb9 1840 "second server certificate");
0f113f3e 1841
2234212c 1842 if (s_dcert == NULL) {
0f113f3e
MC		 1843 ERR_print_errors(bio_err);
1844 goto end;
1845 }
2234212c 1846 if (s_dchain_file != NULL) {
ea51096e 1847 if (!load_certs(s_dchain_file, 0, &s_dchain, NULL,
0996dc54 1848 "second server certificate chain"))
0f113f3e
MC		 1849 goto end;
1850 }
1851
1852 }
1853
0f113f3e
MC		 1854 if (bio_s_out == NULL) {
1855 if (s_quiet && !s_debug) {
1856 bio_s_out = BIO_new(BIO_s_null());
fa17f5c9 1857 if (s_msg && bio_s_msg == NULL) {
a60994df 1858 bio_s_msg = dup_bio_out(FORMAT_TEXT);
fa17f5c9 1859 if (bio_s_msg == NULL) {
1860 BIO_printf(bio_err, "Out of memory\n");
1861 goto end;
1862 }
1863 }
0f113f3e 1864 } else {
ba0b60c6 1865 bio_s_out = dup_bio_out(FORMAT_TEXT);
0f113f3e
MC		 1866 }
1867 }
ba0b60c6
JJ		 1868
1869 if (bio_s_out == NULL)
1870 goto end;
1871
c2403f36 1872 if (nocert) {
0f113f3e
MC		 1873 s_cert_file = NULL;
1874 s_key_file = NULL;
1875 s_dcert_file = NULL;
1876 s_dkey_file = NULL;
0f113f3e
MC		 1877 s_cert_file2 = NULL;
1878 s_key_file2 = NULL;
0f113f3e
MC		 1879 }
1880
574ca403 1881 ctx = SSL_CTX_new_ex(app_get0_libctx(), app_get0_propq(), meth);
0f113f3e
MC		 1882 if (ctx == NULL) {
1883 ERR_print_errors(bio_err);
1884 goto end;
1885 }
693cf80c
KR		 1886
1887 SSL_CTX_clear_mode(ctx, SSL_MODE_AUTO_RETRY);
1888
32eabe34
MR		 1889 if (sdebug)
1890 ssl_ctx_security_debug(ctx, sdebug);
8f8be103
RL		 1891
1892 if (!config_ctx(cctx, ssl_args, ctx))
1893 goto end;
1894
287d0b94
DSH		 1895 if (ssl_config) {
1896 if (SSL_CTX_config(ctx, ssl_config) == 0) {
1897 BIO_printf(bio_err, "Error using configuration \"%s\"\n",
1898 ssl_config);
d6073e27
F		 1899 ERR_print_errors(bio_err);
1900 goto end;
287d0b94
DSH		 1901 }
1902 }
09d62b33
MT		 1903#ifndef OPENSSL_NO_SCTP
1904 if (protocol == IPPROTO_SCTP && sctp_label_bug == 1)
1905 SSL_CTX_set_mode(ctx, SSL_MODE_DTLS_SCTP_LABEL_LENGTH_BUG);
1906#endif
1907
8f8be103
RL		 1908 if (min_version != 0
1909 && SSL_CTX_set_min_proto_version(ctx, min_version) == 0)
0d5301af 1910 goto end;
8f8be103
RL		 1911 if (max_version != 0
1912 && SSL_CTX_set_max_proto_version(ctx, max_version) == 0)
0d5301af 1913 goto end;
287d0b94 1914
0f113f3e
MC		 1915 if (session_id_prefix) {
1916 if (strlen(session_id_prefix) >= 32)
1917 BIO_printf(bio_err,
1918 "warning: id_prefix is too long, only one new session will be possible\n");
1919 if (!SSL_CTX_set_generate_session_id(ctx, generate_session_id)) {
1920 BIO_printf(bio_err, "error setting 'id_prefix'\n");
1921 ERR_print_errors(bio_err);
1922 goto end;
1923 }
1924 BIO_printf(bio_err, "id_prefix '%s' set.\n", session_id_prefix);
1925 }
2234212c 1926 if (exc != NULL)
0f113f3e 1927 ssl_ctx_set_excert(ctx, exc);
0f113f3e
MC		 1928
1929 if (state)
1930 SSL_CTX_set_info_callback(ctx, apps_ssl_info_callback);
1931 if (no_cache)
1932 SSL_CTX_set_session_cache_mode(ctx, SSL_SESS_CACHE_OFF);
1933 else if (ext_cache)
1934 init_session_cache_ctx(ctx);
1935 else
1936 SSL_CTX_sess_set_cache_size(ctx, 128);
58964a49 1937
252d6d3a 1938 if (async) {
7e25dd6d 1939 SSL_CTX_set_mode(ctx, SSL_MODE_ASYNC);
252d6d3a 1940 }
28e5ea88 1941
90fc2c26
NM		 1942 if (no_ca_names) {
1943 SSL_CTX_set_options(ctx, SSL_OP_DISABLE_TLSEXT_CA_NAMES);
1944 }
1945
09b90e0e
DB		 1946 if (ignore_unexpected_eof)
1947 SSL_CTX_set_options(ctx, SSL_OP_IGNORE_UNEXPECTED_EOF);
e2ef7f12
TZ		 1948#ifndef OPENSSL_NO_KTLS
1949 if (enable_ktls)
1950 SSL_CTX_set_options(ctx, SSL_OP_ENABLE_KTLS);
cd715b7e
MM		 1951 if (use_zc_sendfile)
1952 SSL_CTX_set_options(ctx, SSL_OP_ENABLE_KTLS_TX_ZEROCOPY_SENDFILE);
e2ef7f12 1953#endif
09b90e0e 1954
36b2cfb1
F		 1955 if (max_send_fragment > 0
1956 && !SSL_CTX_set_max_send_fragment(ctx, max_send_fragment)) {
1957 BIO_printf(bio_err, "%s: Max send fragment size %u is out of permitted range\n",
1958 prog, max_send_fragment);
1959 goto end;
1960 }
28e5ea88 1961
36b2cfb1
F		 1962 if (split_send_fragment > 0
1963 && !SSL_CTX_set_split_send_fragment(ctx, split_send_fragment)) {
1964 BIO_printf(bio_err, "%s: Split send fragment size %u is out of permitted range\n",
1965 prog, split_send_fragment);
1966 goto end;
032c6d21 1967 }
36b2cfb1
F		 1968 if (max_pipelines > 0
1969 && !SSL_CTX_set_max_pipelines(ctx, max_pipelines)) {
1970 BIO_printf(bio_err, "%s: Max pipelines %u is out of permitted range\n",
1971 prog, max_pipelines);
1972 goto end;
032c6d21 1973 }
7e25dd6d 1974
dad78fb1
MC		 1975 if (read_buf_len > 0) {
1976 SSL_CTX_set_default_read_buffer_len(ctx, read_buf_len);
1977 }
e783bae2 1978#ifndef OPENSSL_NO_SRTP
ac59d705 1979 if (srtp_profiles != NULL) {
7e1b7485
RS		 1980 /* Returns 0 on success! */
1981 if (SSL_CTX_set_tlsext_use_srtp(ctx, srtp_profiles) != 0) {
ac59d705
MC		 1982 BIO_printf(bio_err, "Error setting SRTP profile\n");
1983 ERR_print_errors(bio_err);
1984 goto end;
1985 }
1986 }
e783bae2 1987#endif
333f926d 1988
fd3397fc
RL		 1989 if (!ctx_set_verify_locations(ctx, CAfile, noCAfile, CApath, noCApath,
1990 CAstore, noCAstore)) {
0f113f3e 1991 ERR_print_errors(bio_err);
7e1b7485 1992 goto end;
0f113f3e 1993 }
7e1b7485
RS		 1994 if (vpmtouched && !SSL_CTX_set1_param(ctx, vpm)) {
1995 BIO_printf(bio_err, "Error setting verify params\n");
ac59d705
MC		 1996 ERR_print_errors(bio_err);
1997 goto end;
1998 }
0f113f3e
MC		 1999
2000 ssl_ctx_add_crls(ctx, crls, 0);
0f113f3e 2001
fd3397fc
RL		 2002 if (!ssl_load_stores(ctx,
2003 vfyCApath, vfyCAfile, vfyCAstore,
2004 chCApath, chCAfile, chCAstore,
0f113f3e
MC		 2005 crls, crl_download)) {
2006 BIO_printf(bio_err, "Error loading store locations\n");
2007 ERR_print_errors(bio_err);
2008 goto end;
2009 }
e481f9b9 2010
0f113f3e 2011 if (s_cert2) {
574ca403 2012 ctx2 = SSL_CTX_new_ex(app_get0_libctx(), app_get0_propq(), meth);
0f113f3e
MC		 2013 if (ctx2 == NULL) {
2014 ERR_print_errors(bio_err);
2015 goto end;
2016 }
2017 }
2018
2234212c 2019 if (ctx2 != NULL) {
0f113f3e
MC		 2020 BIO_printf(bio_s_out, "Setting secondary ctx parameters\n");
2021
2022 if (sdebug)
402b00d5 2023 ssl_ctx_security_debug(ctx2, sdebug);
0f113f3e
MC		 2024
2025 if (session_id_prefix) {
2026 if (strlen(session_id_prefix) >= 32)
2027 BIO_printf(bio_err,
2028 "warning: id_prefix is too long, only one new session will be possible\n");
2029 if (!SSL_CTX_set_generate_session_id(ctx2, generate_session_id)) {
2030 BIO_printf(bio_err, "error setting 'id_prefix'\n");
2031 ERR_print_errors(bio_err);
2032 goto end;
2033 }
2034 BIO_printf(bio_err, "id_prefix '%s' set.\n", session_id_prefix);
2035 }
2234212c 2036 if (exc != NULL)
0f113f3e 2037 ssl_ctx_set_excert(ctx2, exc);
0f113f3e
MC		 2038
2039 if (state)
2040 SSL_CTX_set_info_callback(ctx2, apps_ssl_info_callback);
2041
2042 if (no_cache)
2043 SSL_CTX_set_session_cache_mode(ctx2, SSL_SESS_CACHE_OFF);
2044 else if (ext_cache)
2045 init_session_cache_ctx(ctx2);
2046 else
2047 SSL_CTX_sess_set_cache_size(ctx2, 128);
2048
7e25dd6d 2049 if (async)
f4da39d2 2050 SSL_CTX_set_mode(ctx2, SSL_MODE_ASYNC);
7e25dd6d 2051
fd3397fc
RL		 2052 if (!ctx_set_verify_locations(ctx2, CAfile, noCAfile, CApath,
2053 noCApath, CAstore, noCAstore)) {
0f113f3e 2054 ERR_print_errors(bio_err);
f65a8c1e 2055 goto end;
0f113f3e 2056 }
7e1b7485
RS		 2057 if (vpmtouched && !SSL_CTX_set1_param(ctx2, vpm)) {
2058 BIO_printf(bio_err, "Error setting verify params\n");
ac59d705
MC		 2059 ERR_print_errors(bio_err);
2060 goto end;
2061 }
ee2ffc27 2062
0f113f3e 2063 ssl_ctx_add_crls(ctx2, crls, 0);
dba31777 2064 if (!config_ctx(cctx, ssl_args, ctx2))
0f113f3e
MC		 2065 goto end;
2066 }
e481f9b9 2067#ifndef OPENSSL_NO_NEXTPROTONEG
0f113f3e
MC		 2068 if (next_proto.data)
2069 SSL_CTX_set_next_protos_advertised_cb(ctx, next_proto_cb,
2070 &next_proto);
e481f9b9 2071#endif
0f113f3e
MC		 2072 if (alpn_ctx.data)
2073 SSL_CTX_set_alpn_select_cb(ctx, alpn_cb, &alpn_ctx);
b1277b99 2074
0f113f3e 2075 if (!no_dhe) {
163f6dc1 2076 EVP_PKEY *dhpkey = NULL;
0f113f3e 2077
2234212c 2078 if (dhfile != NULL)
d382e796 2079 dhpkey = load_keyparams(dhfile, FORMAT_UNDEF, 0, "DH", "DH parameters");
2234212c 2080 else if (s_cert_file != NULL)
ef044913
SL		 2081 dhpkey = load_keyparams_suppress(s_cert_file, FORMAT_UNDEF, 0, "DH",
2082 "DH parameters", 1);
0f113f3e 2083
163f6dc1 2084 if (dhpkey != NULL) {
0f113f3e
MC		 2085 BIO_printf(bio_s_out, "Setting temp DH parameters\n");
2086 } else {
2087 BIO_printf(bio_s_out, "Using default temp DH parameters\n");
2088 }
2089 (void)BIO_flush(bio_s_out);
2090
163f6dc1 2091 if (dhpkey == NULL) {
0f113f3e 2092 SSL_CTX_set_dh_auto(ctx, 1);
163f6dc1
MC		 2093 } else {
2094 /*
2095 * We need 2 references: one for use by ctx and one for use by
2096 * ctx2
2097 */
2098 if (!EVP_PKEY_up_ref(dhpkey)) {
2099 EVP_PKEY_free(dhpkey);
2100 goto end;
2101 }
2102 if (!SSL_CTX_set0_tmp_dh_pkey(ctx, dhpkey)) {
2103 BIO_puts(bio_err, "Error setting temp DH parameters\n");
2104 ERR_print_errors(bio_err);
2105 /* Free 2 references */
2106 EVP_PKEY_free(dhpkey);
2107 EVP_PKEY_free(dhpkey);
2108 goto end;
2109 }
9912be1b 2110 }
e481f9b9 2111
2234212c 2112 if (ctx2 != NULL) {
163f6dc1 2113 if (dhfile != NULL) {
ef044913
SL		 2114 EVP_PKEY *dhpkey2 = load_keyparams_suppress(s_cert_file2,
2115 FORMAT_UNDEF,
2116 0, "DH",
2117 "DH parameters", 1);
163f6dc1
MC		 2118
2119 if (dhpkey2 != NULL) {
0f113f3e
MC		 2120 BIO_printf(bio_s_out, "Setting temp DH parameters\n");
2121 (void)BIO_flush(bio_s_out);
2122
163f6dc1
MC		 2123 EVP_PKEY_free(dhpkey);
2124 dhpkey = dhpkey2;
0f113f3e
MC		 2125 }
2126 }
163f6dc1 2127 if (dhpkey == NULL) {
0f113f3e 2128 SSL_CTX_set_dh_auto(ctx2, 1);
163f6dc1 2129 } else if (!SSL_CTX_set0_tmp_dh_pkey(ctx2, dhpkey)) {
0f113f3e
MC		 2130 BIO_puts(bio_err, "Error setting temp DH parameters\n");
2131 ERR_print_errors(bio_err);
163f6dc1 2132 EVP_PKEY_free(dhpkey);
0f113f3e
MC		 2133 goto end;
2134 }
163f6dc1 2135 dhpkey = NULL;
0f113f3e 2136 }
163f6dc1 2137 EVP_PKEY_free(dhpkey);
0f113f3e 2138 }
d02b48c6 2139
0f113f3e
MC		 2140 if (!set_cert_key_stuff(ctx, s_cert, s_key, s_chain, build_chain))
2141 goto end;
e481f9b9 2142
0f113f3e
MC		 2143 if (s_serverinfo_file != NULL
2144 && !SSL_CTX_use_serverinfo_file(ctx, s_serverinfo_file)) {
2145 ERR_print_errors(bio_err);
2146 goto end;
2147 }
e481f9b9 2148
2234212c
PY		 2149 if (ctx2 != NULL
2150 && !set_cert_key_stuff(ctx2, s_cert2, s_key2, NULL, build_chain))
0f113f3e 2151 goto end;
e481f9b9 2152
0f113f3e
MC		 2153 if (s_dcert != NULL) {
2154 if (!set_cert_key_stuff(ctx, s_dcert, s_dkey, s_dchain, build_chain))
2155 goto end;
2156 }
d02b48c6 2157
0f113f3e
MC		 2158 if (no_resume_ephemeral) {
2159 SSL_CTX_set_not_resumable_session_callback(ctx,
2160 not_resumable_sess_cb);
e481f9b9 2161
2234212c 2162 if (ctx2 != NULL)
0f113f3e
MC		 2163 SSL_CTX_set_not_resumable_session_callback(ctx2,
2164 not_resumable_sess_cb);
0f113f3e 2165 }
ddac1974 2166#ifndef OPENSSL_NO_PSK
b5292f7b 2167 if (psk_key != NULL) {
0f113f3e 2168 if (s_debug)
d6073e27 2169 BIO_printf(bio_s_out, "PSK key given, setting server callback\n");
0f113f3e
MC		 2170 SSL_CTX_set_psk_server_callback(ctx, psk_server_cb);
2171 }
ddac1974 2172
9a1c170d
E		 2173 if (psk_identity_hint != NULL) {
2174 if (min_version == TLS1_3_VERSION) {
2175 BIO_printf(bio_s_out, "PSK warning: there is NO identity hint in TLSv1.3\n");
2176 } else {
2177 if (!SSL_CTX_use_psk_identity_hint(ctx, psk_identity_hint)) {
2178 BIO_printf(bio_err, "error setting PSK identity hint to context\n");
2179 ERR_print_errors(bio_err);
2180 goto end;
2181 }
2182 }
0f113f3e 2183 }
ddac1974 2184#endif
df894947
MC		 2185 if (psksessf != NULL) {
2186 BIO *stmp = BIO_new_file(psksessf, "r");
2187
2188 if (stmp == NULL) {
2189 BIO_printf(bio_err, "Can't open PSK session file %s\n", psksessf);
2190 ERR_print_errors(bio_err);
2191 goto end;
2192 }
2193 psksess = PEM_read_bio_SSL_SESSION(stmp, NULL, 0, NULL);
2194 BIO_free(stmp);
2195 if (psksess == NULL) {
2196 BIO_printf(bio_err, "Can't read PSK session file %s\n", psksessf);
2197 ERR_print_errors(bio_err);
2198 goto end;
2199 }
5ffff599 2200
df894947 2201 }
ddac1974 2202
5ffff599
MC		 2203 if (psk_key != NULL || psksess != NULL)
2204 SSL_CTX_set_psk_find_session_callback(ctx, psk_find_session_cb);
2205
0f113f3e 2206 SSL_CTX_set_verify(ctx, s_server_verify, verify_callback);
61986d32 2207 if (!SSL_CTX_set_session_id_context(ctx,
d6073e27 2208 (void *)&s_server_session_id_context,
cbe29648 2209 sizeof(s_server_session_id_context))) {
ac59d705
MC		 2210 BIO_printf(bio_err, "error setting session id context\n");
2211 ERR_print_errors(bio_err);
2212 goto end;
2213 }
d02b48c6 2214
0f113f3e
MC		 2215 /* Set DTLS cookie generation and verification callbacks */
2216 SSL_CTX_set_cookie_generate_cb(ctx, generate_cookie_callback);
2217 SSL_CTX_set_cookie_verify_cb(ctx, verify_cookie_callback);
07a9d1a2 2218
3fa2812f
BS		 2219 /* Set TLS1.3 cookie generation and verification callbacks */
2220 SSL_CTX_set_stateless_cookie_generate_cb(ctx, generate_stateless_cookie_callback);
2221 SSL_CTX_set_stateless_cookie_verify_cb(ctx, verify_stateless_cookie_callback);
2222
2234212c 2223 if (ctx2 != NULL) {
0f113f3e 2224 SSL_CTX_set_verify(ctx2, s_server_verify, verify_callback);
61986d32 2225 if (!SSL_CTX_set_session_id_context(ctx2,
7e1b7485 2226 (void *)&s_server_session_id_context,
cbe29648 2227 sizeof(s_server_session_id_context))) {
ac59d705
MC		 2228 BIO_printf(bio_err, "error setting session id context\n");
2229 ERR_print_errors(bio_err);
2230 goto end;
2231 }
0f113f3e
MC		 2232 tlsextcbp.biodebug = bio_s_out;
2233 SSL_CTX_set_tlsext_servername_callback(ctx2, ssl_servername_cb);
2234 SSL_CTX_set_tlsext_servername_arg(ctx2, &tlsextcbp);
2235 SSL_CTX_set_tlsext_servername_callback(ctx, ssl_servername_cb);
2236 SSL_CTX_set_tlsext_servername_arg(ctx, &tlsextcbp);
2237 }
f1fd4544 2238
edc032b5 2239#ifndef OPENSSL_NO_SRP
0f113f3e 2240 if (srp_verifier_file != NULL) {
6d2a1eff
MC		 2241 if (!set_up_srp_verifier_file(ctx, &srp_callback_parm, srpuserseed,
2242 srp_verifier_file))
0f113f3e 2243 goto end;
0f113f3e
MC		 2244 } else
2245#endif
2246 if (CAfile != NULL) {
2247 SSL_CTX_set_client_CA_list(ctx, SSL_load_client_CA_file(CAfile));
e481f9b9 2248
0f113f3e
MC		 2249 if (ctx2)
2250 SSL_CTX_set_client_CA_list(ctx2, SSL_load_client_CA_file(CAfile));
0f113f3e 2251 }
3e41ac35 2252#ifndef OPENSSL_NO_OCSP
be0c0361
AE		 2253 if (s_tlsextstatus) {
2254 SSL_CTX_set_tlsext_status_cb(ctx, cert_status_cb);
2255 SSL_CTX_set_tlsext_status_arg(ctx, &tlscstatp);
2256 if (ctx2) {
2257 SSL_CTX_set_tlsext_status_cb(ctx2, cert_status_cb);
2258 SSL_CTX_set_tlsext_status_arg(ctx2, &tlscstatp);
2259 }
2260 }
3e41ac35 2261#endif
4bf73e9f
PW		 2262 if (set_keylog_file(ctx, keylog_file))
2263 goto end;
0f113f3e 2264
6746648c 2265 if (max_early_data >= 0)
048b1893 2266 SSL_CTX_set_max_early_data(ctx, max_early_data);
bafe9cf5
MC		 2267 if (recv_max_early_data >= 0)
2268 SSL_CTX_set_recv_max_early_data(ctx, recv_max_early_data);
048b1893 2269
b67cb09f
TS		 2270 if (cert_comp) {
2271 BIO_printf(bio_s_out, "Compressing certificates\n");
2272 if (!SSL_CTX_compress_certs(ctx, 0))
2273 BIO_printf(bio_s_out, "Error compressing certs on ctx\n");
2274 if (ctx2 != NULL && !SSL_CTX_compress_certs(ctx2, 0))
2275 BIO_printf(bio_s_out, "Error compressing certs on ctx2\n");
2276 }
2277
0f113f3e
MC		 2278 if (rev)
2279 server_cb = rev_body;
2280 else if (www)
2281 server_cb = www_body;
2282 else
2283 server_cb = sv_body;
ab69ac00
RL		 2284#ifdef AF_UNIX
2285 if (socket_family == AF_UNIX
2286 && unlink_unix_path)
2287 unlink(host);
0f113f3e 2288#endif
a3e53d56
TS		 2289 if (tfo)
2290 BIO_printf(bio_s_out, "Listening for TFO\n");
72d0bc84 2291 do_server(&accept_socket, host, port, socket_family, socket_type, protocol,
a3e53d56 2292 server_cb, context, naccept, bio_s_out, tfo);
0f113f3e
MC		 2293 print_stats(bio_s_out, ctx);
2294 ret = 0;
2295 end:
62adbcee 2296 SSL_CTX_free(ctx);
9561e2a1 2297 SSL_SESSION_free(psksess);
4bf73e9f 2298 set_keylog_file(NULL, NULL);
222561fe
RS		 2299 X509_free(s_cert);
2300 sk_X509_CRL_pop_free(crls, X509_CRL_free);
2301 X509_free(s_dcert);
c5ba2d99
RS		 2302 EVP_PKEY_free(s_key);
2303 EVP_PKEY_free(s_dkey);
79b2a2f2
DDO		 2304 OSSL_STACK_OF_X509_free(s_chain);
2305 OSSL_STACK_OF_X509_free(s_dchain);
25aaa98a
RS		 2306 OPENSSL_free(pass);
2307 OPENSSL_free(dpass);
ab69ac00
RL		 2308 OPENSSL_free(host);
2309 OPENSSL_free(port);
222561fe 2310 X509_VERIFY_PARAM_free(vpm);
0f113f3e 2311 free_sessions();
25aaa98a
RS		 2312 OPENSSL_free(tlscstatp.host);
2313 OPENSSL_free(tlscstatp.port);
2314 OPENSSL_free(tlscstatp.path);
62adbcee 2315 SSL_CTX_free(ctx2);
222561fe 2316 X509_free(s_cert2);
c5ba2d99 2317 EVP_PKEY_free(s_key2);
e481f9b9 2318#ifndef OPENSSL_NO_NEXTPROTONEG
25aaa98a 2319 OPENSSL_free(next_proto.data);
0f113f3e 2320#endif
e481f9b9 2321 OPENSSL_free(alpn_ctx.data);
0f113f3e 2322 ssl_excert_free(exc);
7e1b7485 2323 sk_OPENSSL_STRING_free(ssl_args);
62adbcee 2324 SSL_CONF_CTX_free(cctx);
dd1abd44 2325 release_engine(engine);
ca3a82c3
RS		 2326 BIO_free(bio_s_out);
2327 bio_s_out = NULL;
2328 BIO_free(bio_s_msg);
2329 bio_s_msg = NULL;
5fd1478d
MC		 2330#ifdef CHARSET_EBCDIC
2331 BIO_meth_free(methods_ebcdic);
2332#endif
26a7d938 2333 return ret;
0f113f3e 2334}
d02b48c6 2335
6b691a5c 2336static void print_stats(BIO *bio, SSL_CTX *ssl_ctx)
0f113f3e
MC		 2337{
2338 BIO_printf(bio, "%4ld items in the session cache\n",
2339 SSL_CTX_sess_number(ssl_ctx));
2340 BIO_printf(bio, "%4ld client connects (SSL_connect())\n",
2341 SSL_CTX_sess_connect(ssl_ctx));
2342 BIO_printf(bio, "%4ld client renegotiates (SSL_connect())\n",
2343 SSL_CTX_sess_connect_renegotiate(ssl_ctx));
2344 BIO_printf(bio, "%4ld client connects that finished\n",
2345 SSL_CTX_sess_connect_good(ssl_ctx));
2346 BIO_printf(bio, "%4ld server accepts (SSL_accept())\n",
2347 SSL_CTX_sess_accept(ssl_ctx));
2348 BIO_printf(bio, "%4ld server renegotiates (SSL_accept())\n",
2349 SSL_CTX_sess_accept_renegotiate(ssl_ctx));
2350 BIO_printf(bio, "%4ld server accepts that finished\n",
2351 SSL_CTX_sess_accept_good(ssl_ctx));
2352 BIO_printf(bio, "%4ld session cache hits\n", SSL_CTX_sess_hits(ssl_ctx));
2353 BIO_printf(bio, "%4ld session cache misses\n",
2354 SSL_CTX_sess_misses(ssl_ctx));
2355 BIO_printf(bio, "%4ld session cache timeouts\n",
2356 SSL_CTX_sess_timeouts(ssl_ctx));
2357 BIO_printf(bio, "%4ld callback cache hits\n",
2358 SSL_CTX_sess_cb_hits(ssl_ctx));
2359 BIO_printf(bio, "%4ld cache full overflows (%ld allowed)\n",
2360 SSL_CTX_sess_cache_full(ssl_ctx),
2361 SSL_CTX_sess_get_cache_size(ssl_ctx));
2362}
d02b48c6 2363
a6d52f17
DF		 2364static long int count_reads_callback(BIO *bio, int cmd, const char *argp, size_t len,
2365 int argi, long argl, int ret, size_t *processed)
2366{
2367 unsigned int *p_counter = (unsigned int *)BIO_get_callback_arg(bio);
2368
2369 switch (cmd) {
2370 case BIO_CB_READ: /* No break here */
2371 case BIO_CB_GETS:
2372 if (p_counter != NULL)
2373 ++*p_counter;
2374 break;
2375 default:
2376 break;
2377 }
2378
2379 if (s_debug) {
2380 BIO_set_callback_arg(bio, (char *)bio_s_out);
2381 ret = (int)bio_dump_callback(bio, cmd, argp, len, argi, argl, ret, processed);
2382 BIO_set_callback_arg(bio, (char *)p_counter);
2383 }
2384
2385 return ret;
2386}
2387
72d0bc84 2388static int sv_body(int s, int stype, int prot, unsigned char *context)
0f113f3e
MC		 2389{
2390 char *buf = NULL;
2391 fd_set readfds;
2392 int ret = 1, width;
2393 int k, i;
2394 unsigned long l;
2395 SSL *con = NULL;
2396 BIO *sbio;
0f113f3e 2397 struct timeval timeout;
ff25dd1a 2398#if !(defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS))
0f113f3e 2399 struct timeval *timeoutp;
06f4536a 2400#endif
72d0bc84 2401#ifndef OPENSSL_NO_DTLS
d88ab353 2402# ifndef OPENSSL_NO_SCTP
72d0bc84 2403 int isdtls = (stype == SOCK_DGRAM || prot == IPPROTO_SCTP);
d88ab353 2404# else
72d0bc84 2405 int isdtls = (stype == SOCK_DGRAM);
d88ab353 2406# endif
72d0bc84 2407#endif
d02b48c6 2408
68dc6824 2409 buf = app_malloc(bufsize, "server buffer");
0f113f3e 2410 if (s_nbio) {
ba810815 2411 if (!BIO_socket_nbio(s, 1))
0f113f3e 2412 ERR_print_errors(bio_err);
ba810815
RS		 2413 else if (!s_quiet)
2414 BIO_printf(bio_err, "Turned on non blocking io\n");
0f113f3e 2415 }
d02b48c6 2416
f84a648c 2417 con = SSL_new(ctx);
0f113f3e 2418 if (con == NULL) {
f84a648c
K		 2419 ret = -1;
2420 goto err;
2421 }
e481f9b9 2422
f84a648c
K		 2423 if (s_tlsextdebug) {
2424 SSL_set_tlsext_debug_callback(con, tlsext_cb);
2425 SSL_set_tlsext_debug_arg(con, bio_s_out);
2426 }
e481f9b9 2427
f84a648c
K		 2428 if (context != NULL
2429 && !SSL_set_session_id_context(con, context,
2430 strlen((char *)context))) {
2431 BIO_printf(bio_err, "Error setting session id context\n");
2432 ret = -1;
2433 goto err;
ac59d705 2434 }
f84a648c 2435
61986d32 2436 if (!SSL_clear(con)) {
ac59d705
MC		 2437 BIO_printf(bio_err, "Error clearing SSL connection\n");
2438 ret = -1;
2439 goto err;
0f113f3e 2440 }
a7a14a23 2441#ifndef OPENSSL_NO_DTLS
72d0bc84 2442 if (isdtls) {
d88ab353 2443# ifndef OPENSSL_NO_SCTP
72d0bc84
MC		 2444 if (prot == IPPROTO_SCTP)
2445 sbio = BIO_new_dgram_sctp(s, BIO_NOCLOSE);
2446 else
d88ab353 2447# endif
72d0bc84 2448 sbio = BIO_new_dgram(s, BIO_NOCLOSE);
ba0b60c6
JJ		 2449 if (sbio == NULL) {
2450 BIO_printf(bio_err, "Unable to create BIO\n");
2451 ERR_print_errors(bio_err);
2452 goto err;
2453 }
0f113f3e
MC		 2454
2455 if (enable_timeouts) {
2456 timeout.tv_sec = 0;
2457 timeout.tv_usec = DGRAM_RCV_TIMEOUT;
2458 BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_RECV_TIMEOUT, 0, &timeout);
2459
2460 timeout.tv_sec = 0;
2461 timeout.tv_usec = DGRAM_SND_TIMEOUT;
2462 BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_SEND_TIMEOUT, 0, &timeout);
2463 }
2464
2465 if (socket_mtu) {
2466 if (socket_mtu < DTLS_get_link_min_mtu(con)) {
2467 BIO_printf(bio_err, "MTU too small. Must be at least %ld\n",
2468 DTLS_get_link_min_mtu(con));
2469 ret = -1;
2470 BIO_free(sbio);
2471 goto err;
2472 }
2473 SSL_set_options(con, SSL_OP_NO_QUERY_MTU);
2474 if (!DTLS_set_link_mtu(con, socket_mtu)) {
2475 BIO_printf(bio_err, "Failed to set MTU\n");
2476 ret = -1;
2477 BIO_free(sbio);
2478 goto err;
2479 }
2480 } else
2481 /* want to do MTU discovery */
2482 BIO_ctrl(sbio, BIO_CTRL_DGRAM_MTU_DISCOVER, 0, NULL);
36d16f8e 2483
a5eef31e 2484# ifndef OPENSSL_NO_SCTP
1b3011ab
MC		 2485 if (prot != IPPROTO_SCTP)
2486# endif
72d0bc84
MC		 2487 /* Turn on cookie exchange. Not necessary for SCTP */
2488 SSL_set_options(con, SSL_OP_COOKIE_EXCHANGE);
0f113f3e 2489 } else
a7a14a23 2490#endif
0f113f3e 2491 sbio = BIO_new_socket(s, BIO_NOCLOSE);
36d16f8e 2492
72d0bc84
MC		 2493 if (sbio == NULL) {
2494 BIO_printf(bio_err, "Unable to create BIO\n");
2495 ERR_print_errors(bio_err);
2496 goto err;
2497 }
2498
0f113f3e
MC		 2499 if (s_nbio_test) {
2500 BIO *test;
d02b48c6 2501
0f113f3e 2502 test = BIO_new(BIO_f_nbio_test());
ba0b60c6
JJ		 2503 if (test == NULL) {
2504 BIO_printf(bio_err, "Unable to create BIO\n");
2505 ret = -1;
2506 BIO_free(sbio);
2507 goto err;
2508 }
0f113f3e
MC		 2509 sbio = BIO_push(test, sbio);
2510 }
0f113f3e
MC		 2511
2512 SSL_set_bio(con, sbio, sbio);
2513 SSL_set_accept_state(con);
2514 /* SSL_set_fd(con,s); */
2515
a6d52f17 2516 BIO_set_callback_ex(SSL_get_rbio(con), count_reads_callback);
0f113f3e 2517 if (s_msg) {
93ab9e42 2518#ifndef OPENSSL_NO_SSL_TRACE
0f113f3e
MC		 2519 if (s_msg == 2)
2520 SSL_set_msg_callback(con, SSL_trace);
2521 else
93ab9e42 2522#endif
0f113f3e
MC		 2523 SSL_set_msg_callback(con, msg_cb);
2524 SSL_set_msg_callback_arg(con, bio_s_msg ? bio_s_msg : bio_s_out);
2525 }
e481f9b9 2526
0f113f3e
MC		 2527 if (s_tlsextdebug) {
2528 SSL_set_tlsext_debug_callback(con, tlsext_cb);
2529 SSL_set_tlsext_debug_arg(con, bio_s_out);
2530 }
d02b48c6 2531
e0655186 2532 if (early_data) {
f533fbd4 2533 int write_header = 1, edret = SSL_READ_EARLY_DATA_ERROR;
e0655186
MC		 2534 size_t readbytes;
2535
f533fbd4 2536 while (edret != SSL_READ_EARLY_DATA_FINISH) {
e0655186 2537 for (;;) {
f533fbd4
MC		 2538 edret = SSL_read_early_data(con, buf, bufsize, &readbytes);
2539 if (edret != SSL_READ_EARLY_DATA_ERROR)
e0655186
MC		 2540 break;
2541
2542 switch (SSL_get_error(con, 0)) {
2543 case SSL_ERROR_WANT_WRITE:
2544 case SSL_ERROR_WANT_ASYNC:
2545 case SSL_ERROR_WANT_READ:
2546 /* Just keep trying - busy waiting */
2547 continue;
2548 default:
2549 BIO_printf(bio_err, "Error reading early data\n");
2550 ERR_print_errors(bio_err);
2551 goto err;
2552 }
2553 }
2554 if (readbytes > 0) {
2555 if (write_header) {
2556 BIO_printf(bio_s_out, "Early data received:\n");
2557 write_header = 0;
2558 }
2559 raw_write_stdout(buf, (unsigned int)readbytes);
2560 (void)BIO_flush(bio_s_out);
2561 }
2562 }
3b587356
MC		 2563 if (write_header) {
2564 if (SSL_get_early_data_status(con) == SSL_EARLY_DATA_NOT_SENT)
2565 BIO_printf(bio_s_out, "No early data received\n");
2566 else
2567 BIO_printf(bio_s_out, "Early data was rejected\n");
2568 } else {
e0655186 2569 BIO_printf(bio_s_out, "\nEnd of early data\n");
3b587356 2570 }
ade1e888
MC		 2571 if (SSL_is_init_finished(con))
2572 print_connection_info(con);
e0655186
MC		 2573 }
2574
51e5133d
RL		 2575 if (fileno_stdin() > s)
2576 width = fileno_stdin() + 1;
c7bdb6a3
RL		 2577 else
2578 width = s + 1;
0f113f3e
MC		 2579 for (;;) {
2580 int read_from_terminal;
2581 int read_from_sslcon;
a2a01589 2582
0f113f3e 2583 read_from_terminal = 0;
fd068d50 2584 read_from_sslcon = SSL_has_pending(con)
64c07bd2 2585 || (async && SSL_waiting_for_async(con));
a2a01589 2586
0f113f3e
MC		 2587 if (!read_from_sslcon) {
2588 FD_ZERO(&readfds);
1fbab1dc 2589#if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS)
51e5133d 2590 openssl_fdset(fileno_stdin(), &readfds);
0f113f3e
MC		 2591#endif
2592 openssl_fdset(s, &readfds);
2593 /*
2594 * Note: under VMS with SOCKETSHR the second parameter is
2595 * currently of type (int *) whereas under other systems it is
2596 * (void *) if you don't have a cast it will choke the compiler:
2597 * if you do have a cast then you can either go for (int *) or
2598 * (void *).
2599 */
1fbab1dc 2600#if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
0f113f3e
MC		 2601 /*
2602 * Under DOS (non-djgpp) and Windows we can't select on stdin:
2603 * only on sockets. As a workaround we timeout the select every
2604 * second and check for any keypress. In a proper Windows
2605 * application we wouldn't do this because it is inefficient.
2606 */
ff25dd1a
RL		 2607 timeout.tv_sec = 1;
2608 timeout.tv_usec = 0;
2609 i = select(width, (void *)&readfds, NULL, NULL, &timeout);
75dd6c1a 2610 if (has_stdin_waiting())
0f113f3e 2611 read_from_terminal = 1;
75dd6c1a
MC		 2612 if ((i < 0) || (!i && !read_from_terminal))
2613 continue;
06f4536a 2614#else
6f6da2fe 2615 if (SSL_is_dtls(con) && DTLSv1_get_timeout(con, &timeout))
0f113f3e
MC		 2616 timeoutp = &timeout;
2617 else
2618 timeoutp = NULL;
2619
2620 i = select(width, (void *)&readfds, NULL, NULL, timeoutp);
2621
6f6da2fe 2622 if ((SSL_is_dtls(con)) && DTLSv1_handle_timeout(con) > 0)
0f113f3e 2623 BIO_printf(bio_err, "TIMEOUT occurred\n");
0f113f3e
MC		 2624
2625 if (i <= 0)
2626 continue;
51e5133d 2627 if (FD_ISSET(fileno_stdin(), &readfds))
0f113f3e
MC		 2628 read_from_terminal = 1;
2629#endif
2630 if (FD_ISSET(s, &readfds))
2631 read_from_sslcon = 1;
2632 }
2633 if (read_from_terminal) {
2634 if (s_crlf) {
2635 int j, lf_num;
2636
c7bdb6a3 2637 i = raw_read_stdin(buf, bufsize / 2);
c7bdb6a3 2638 lf_num = 0;
0f113f3e
MC		 2639 /* both loops are skipped when i <= 0 */
2640 for (j = 0; j < i; j++)
2641 if (buf[j] == '\n')
2642 lf_num++;
2643 for (j = i - 1; j >= 0; j--) {
2644 buf[j + lf_num] = buf[j];
2645 if (buf[j] == '\n') {
2646 lf_num--;
2647 i++;
2648 buf[j + lf_num] = '\r';
2649 }
2650 }
2651 assert(lf_num == 0);
2234212c 2652 } else {
c7bdb6a3 2653 i = raw_read_stdin(buf, bufsize);
2234212c 2654 }
51e5133d 2655
0f113f3e
MC		 2656 if (!s_quiet && !s_brief) {
2657 if ((i <= 0) || (buf[0] == 'Q')) {
2658 BIO_printf(bio_s_out, "DONE\n");
7e1b7485 2659 (void)BIO_flush(bio_s_out);
8731a4fc 2660 BIO_closesocket(s);
0f113f3e
MC		 2661 close_accept_socket();
2662 ret = -11;
2663 goto err;
2664 }
2665 if ((i <= 0) || (buf[0] == 'q')) {
2666 BIO_printf(bio_s_out, "DONE\n");
7e1b7485 2667 (void)BIO_flush(bio_s_out);
0f113f3e 2668 if (SSL_version(con) != DTLS1_VERSION)
8731a4fc 2669 BIO_closesocket(s);
0f113f3e
MC		 2670 /*
2671 * close_accept_socket(); ret= -11;
2672 */
2673 goto err;
2674 }
0f113f3e
MC		 2675 if ((buf[0] == 'r') && ((buf[1] == '\n') || (buf[1] == '\r'))) {
2676 SSL_renegotiate(con);
2677 i = SSL_do_handshake(con);
2678 printf("SSL_do_handshake -> %d\n", i);
2679 i = 0; /* 13; */
2680 continue;
0f113f3e
MC		 2681 }
2682 if ((buf[0] == 'R') && ((buf[1] == '\n') || (buf[1] == '\r'))) {
2683 SSL_set_verify(con,
2684 SSL_VERIFY_PEER | SSL_VERIFY_CLIENT_ONCE,
2685 NULL);
2686 SSL_renegotiate(con);
2687 i = SSL_do_handshake(con);
2688 printf("SSL_do_handshake -> %d\n", i);
2689 i = 0; /* 13; */
2690 continue;
0f113f3e 2691 }
34df45b5
MC		 2692 if ((buf[0] == 'K' || buf[0] == 'k')
2693 && ((buf[1] == '\n') || (buf[1] == '\r'))) {
2694 SSL_key_update(con, buf[0] == 'K' ?
2695 SSL_KEY_UPDATE_REQUESTED
2696 : SSL_KEY_UPDATE_NOT_REQUESTED);
2697 i = SSL_do_handshake(con);
2698 printf("SSL_do_handshake -> %d\n", i);
2699 i = 0;
2700 continue;
34df45b5 2701 }
9d75dce3
TS		 2702 if (buf[0] == 'c' && ((buf[1] == '\n') || (buf[1] == '\r'))) {
2703 SSL_set_verify(con, SSL_VERIFY_PEER, NULL);
2704 i = SSL_verify_client_post_handshake(con);
2705 if (i == 0) {
2706 printf("Failed to initiate request\n");
2707 ERR_print_errors(bio_err);
2708 } else {
2709 i = SSL_do_handshake(con);
2710 printf("SSL_do_handshake -> %d\n", i);
2711 i = 0;
2712 }
2713 continue;
2714 }
0f113f3e 2715 if (buf[0] == 'P') {
4bac25e1 2716 static const char str[] = "Lets print some clear text\n";
2717 BIO_write(SSL_get_wbio(con), str, sizeof(str) -1);
0f113f3e
MC		 2718 }
2719 if (buf[0] == 'S') {
2720 print_stats(bio_s_out, SSL_get_SSL_CTX(con));
2721 }
2722 }
a53955d8 2723#ifdef CHARSET_EBCDIC
0f113f3e 2724 ebcdic2ascii(buf, buf, i);
a53955d8 2725#endif
0f113f3e
MC		 2726 l = k = 0;
2727 for (;;) {
2728 /* should do a select for the write */
58964a49 2729#ifdef RENEG
54463e4f
F		 2730 static count = 0;
2731 if (++count == 100) {
2732 count = 0;
2733 SSL_renegotiate(con);
0f113f3e 2734 }
d02b48c6 2735#endif
0f113f3e 2736 k = SSL_write(con, &(buf[l]), (unsigned int)i);
9641be2a 2737#ifndef OPENSSL_NO_SRP
0f113f3e
MC		 2738 while (SSL_get_error(con, k) == SSL_ERROR_WANT_X509_LOOKUP) {
2739 BIO_printf(bio_s_out, "LOOKUP renego during write\n");
6d2a1eff
MC		 2740
2741 lookup_srp_user(&srp_callback_parm, bio_s_out);
2742
0f113f3e
MC		 2743 k = SSL_write(con, &(buf[l]), (unsigned int)i);
2744 }
2745#endif
2746 switch (SSL_get_error(con, k)) {
2747 case SSL_ERROR_NONE:
2748 break;
7e25dd6d
MC		 2749 case SSL_ERROR_WANT_ASYNC:
2750 BIO_printf(bio_s_out, "Write BLOCK (Async)\n");
384f08dc 2751 (void)BIO_flush(bio_s_out);
f4da39d2 2752 wait_for_async(con);
7e25dd6d 2753 break;
0f113f3e
MC		 2754 case SSL_ERROR_WANT_WRITE:
2755 case SSL_ERROR_WANT_READ:
2756 case SSL_ERROR_WANT_X509_LOOKUP:
2757 BIO_printf(bio_s_out, "Write BLOCK\n");
384f08dc 2758 (void)BIO_flush(bio_s_out);
0f113f3e 2759 break;
fc7f190c
MC		 2760 case SSL_ERROR_WANT_ASYNC_JOB:
2761 /*
2762 * This shouldn't ever happen in s_server. Treat as an error
2763 */
0f113f3e
MC		 2764 case SSL_ERROR_SYSCALL:
2765 case SSL_ERROR_SSL:
2766 BIO_printf(bio_s_out, "ERROR\n");
7e1b7485 2767 (void)BIO_flush(bio_s_out);
0f113f3e
MC		 2768 ERR_print_errors(bio_err);
2769 ret = 1;
2770 goto err;
2771 /* break; */
2772 case SSL_ERROR_ZERO_RETURN:
2773 BIO_printf(bio_s_out, "DONE\n");
7e1b7485 2774 (void)BIO_flush(bio_s_out);
0f113f3e
MC		 2775 ret = 1;
2776 goto err;
2777 }
00d565cf
RS		 2778 if (k > 0) {
2779 l += k;
2780 i -= k;
2781 }
0f113f3e
MC		 2782 if (i <= 0)
2783 break;
2784 }
2785 }
2786 if (read_from_sslcon) {
64c07bd2
MC		 2787 /*
2788 * init_ssl_connection handles all async events itself so if we're
2789 * waiting for async then we shouldn't go back into
2790 * init_ssl_connection
2791 */
2792 if ((!async || !SSL_waiting_for_async(con))
2793 && !SSL_is_init_finished(con)) {
a6d52f17
DF		 2794 /*
2795 * Count number of reads during init_ssl_connection.
2796 * It helps us to distinguish configuration errors from errors
2797 * caused by a client.
2798 */
2799 unsigned int read_counter = 0;
2800
2801 BIO_set_callback_arg(SSL_get_rbio(con), (char *)&read_counter);
0f113f3e 2802 i = init_ssl_connection(con);
a6d52f17
DF		 2803 BIO_set_callback_arg(SSL_get_rbio(con), NULL);
2804
2805 /*
2806 * If initialization fails without reads, then
2807 * there was a fatal error in configuration.
2808 */
2809 if (i <= 0 && read_counter == 0) {
2810 ret = -1;
2811 goto err;
2812 }
0f113f3e
MC		 2813 if (i < 0) {
2814 ret = 0;
2815 goto err;
2816 } else if (i == 0) {
2817 ret = 1;
2818 goto err;
2819 }
2820 } else {
2821 again:
2822 i = SSL_read(con, (char *)buf, bufsize);
9641be2a 2823#ifndef OPENSSL_NO_SRP
0f113f3e
MC		 2824 while (SSL_get_error(con, i) == SSL_ERROR_WANT_X509_LOOKUP) {
2825 BIO_printf(bio_s_out, "LOOKUP renego during read\n");
6d2a1eff
MC		 2826
2827 lookup_srp_user(&srp_callback_parm, bio_s_out);
2828
0f113f3e
MC		 2829 i = SSL_read(con, (char *)buf, bufsize);
2830 }
2831#endif
2832 switch (SSL_get_error(con, i)) {
2833 case SSL_ERROR_NONE:
a53955d8 2834#ifdef CHARSET_EBCDIC
0f113f3e
MC		 2835 ascii2ebcdic(buf, buf, i);
2836#endif
2837 raw_write_stdout(buf, (unsigned int)i);
384f08dc 2838 (void)BIO_flush(bio_s_out);
fd068d50 2839 if (SSL_has_pending(con))
0f113f3e
MC		 2840 goto again;
2841 break;
7e25dd6d 2842 case SSL_ERROR_WANT_ASYNC:
f4da39d2 2843 BIO_printf(bio_s_out, "Read BLOCK (Async)\n");
384f08dc 2844 (void)BIO_flush(bio_s_out);
f4da39d2
MC		 2845 wait_for_async(con);
2846 break;
0f113f3e
MC		 2847 case SSL_ERROR_WANT_WRITE:
2848 case SSL_ERROR_WANT_READ:
2849 BIO_printf(bio_s_out, "Read BLOCK\n");
384f08dc 2850 (void)BIO_flush(bio_s_out);
0f113f3e 2851 break;
fc7f190c
MC		 2852 case SSL_ERROR_WANT_ASYNC_JOB:
2853 /*
2854 * This shouldn't ever happen in s_server. Treat as an error
2855 */
0f113f3e
MC		 2856 case SSL_ERROR_SYSCALL:
2857 case SSL_ERROR_SSL:
2858 BIO_printf(bio_s_out, "ERROR\n");
7e1b7485 2859 (void)BIO_flush(bio_s_out);
0f113f3e
MC		 2860 ERR_print_errors(bio_err);
2861 ret = 1;
2862 goto err;
2863 case SSL_ERROR_ZERO_RETURN:
2864 BIO_printf(bio_s_out, "DONE\n");
7e1b7485 2865 (void)BIO_flush(bio_s_out);
0f113f3e
MC		 2866 ret = 1;
2867 goto err;
2868 }
2869 }
2870 }
2871 }
2872 err:
2873 if (con != NULL) {
2874 BIO_printf(bio_s_out, "shutting down SSL\n");
edbb56ee 2875 do_ssl_shutdown(con);
0f113f3e
MC		 2876 SSL_free(con);
2877 }
2878 BIO_printf(bio_s_out, "CONNECTION CLOSED\n");
4b45c6e5 2879 OPENSSL_clear_free(buf, bufsize);
26a7d938 2880 return ret;
0f113f3e 2881}
d02b48c6 2882
6b691a5c 2883static void close_accept_socket(void)
0f113f3e
MC		 2884{
2885 BIO_printf(bio_err, "shutdown accept socket\n");
2886 if (accept_socket >= 0) {
8731a4fc 2887 BIO_closesocket(accept_socket);
0f113f3e
MC		 2888 }
2889}
d02b48c6 2890
068e3d73
MC		 2891static int is_retryable(SSL *con, int i)
2892{
2893 int err = SSL_get_error(con, i);
2894
2895 /* If it's not a fatal error, it must be retryable */
2896 return (err != SSL_ERROR_SSL)
2897 && (err != SSL_ERROR_SYSCALL)
2898 && (err != SSL_ERROR_ZERO_RETURN);
2899}
2900
6b691a5c 2901static int init_ssl_connection(SSL *con)
0f113f3e
MC		 2902{
2903 int i;
df2ee0e2 2904 long verify_err;
384f08dc 2905 int retry = 0;
fd4e98ec 2906
c2f9648d 2907 if (dtlslisten || stateless) {
d858c876
RL		 2908 BIO_ADDR *client = NULL;
2909
c2f9648d
MC		 2910 if (dtlslisten) {
2911 if ((client = BIO_ADDR_new()) == NULL) {
2912 BIO_printf(bio_err, "ERROR - memory\n");
2913 return 0;
2914 }
2915 i = DTLSv1_listen(con, client);
2916 } else {
2917 i = SSL_stateless(con);
d858c876 2918 }
fd4e98ec
MC		 2919 if (i > 0) {
2920 BIO *wbio;
3a796184 2921 int fd = -1;
fd4e98ec 2922
c2f9648d
MC		 2923 if (dtlslisten) {
2924 wbio = SSL_get_wbio(con);
2925 if (wbio) {
2926 BIO_get_fd(wbio, &fd);
2927 }
fd4e98ec 2928
c2f9648d
MC		 2929 if (!wbio || BIO_connect(fd, client, 0) == 0) {
2930 BIO_printf(bio_err, "ERROR - unable to connect\n");
2931 BIO_ADDR_free(client);
2932 return 0;
2933 }
b92678f4
MH		 2934
2935 (void)BIO_ctrl_set_connected(wbio, client);
d858c876 2936 BIO_ADDR_free(client);
c2f9648d
MC		 2937 dtlslisten = 0;
2938 } else {
2939 stateless = 0;
fd4e98ec 2940 }
fd4e98ec 2941 i = SSL_accept(con);
a3768e0c
MC		 2942 } else {
2943 BIO_ADDR_free(client);
fd4e98ec 2944 }
c2f9648d
MC		 2945 } else {
2946 do {
2947 i = SSL_accept(con);
d02b48c6 2948
c2f9648d
MC		 2949 if (i <= 0)
2950 retry = is_retryable(con, i);
3323314f 2951#ifdef CERT_CB_TEST_RETRY
c2f9648d
MC		 2952 {
2953 while (i <= 0
2954 && SSL_get_error(con, i) == SSL_ERROR_WANT_X509_LOOKUP
2955 && SSL_get_state(con) == TLS_ST_SR_CLNT_HELLO) {
2956 BIO_printf(bio_err,
2957 "LOOKUP from certificate callback during accept\n");
2958 i = SSL_accept(con);
2959 if (i <= 0)
2960 retry = is_retryable(con, i);
2961 }
2962 }
2963#endif
2964
2965#ifndef OPENSSL_NO_SRP
d6073e27 2966 while (i <= 0
c2f9648d
MC		 2967 && SSL_get_error(con, i) == SSL_ERROR_WANT_X509_LOOKUP) {
2968 BIO_printf(bio_s_out, "LOOKUP during accept %s\n",
2969 srp_callback_parm.login);
6d2a1eff
MC		 2970
2971 lookup_srp_user(&srp_callback_parm, bio_s_out);
2972
7e25dd6d 2973 i = SSL_accept(con);
384f08dc 2974 if (i <= 0)
068e3d73 2975 retry = is_retryable(con, i);
7e25dd6d 2976 }
3323314f 2977#endif
c2f9648d
MC		 2978 } while (i < 0 && SSL_waiting_for_async(con));
2979 }
0f113f3e
MC		 2980
2981 if (i <= 0) {
c2f9648d
MC		 2982 if (((dtlslisten || stateless) && i == 0)
2983 || (!dtlslisten && !stateless && retry)) {
0f113f3e 2984 BIO_printf(bio_s_out, "DELAY\n");
208fb891 2985 return 1;
0f113f3e
MC		 2986 }
2987
2988 BIO_printf(bio_err, "ERROR\n");
7e1b7485 2989
df2ee0e2
BL		 2990 verify_err = SSL_get_verify_result(con);
2991 if (verify_err != X509_V_OK) {
0f113f3e 2992 BIO_printf(bio_err, "verify error:%s\n",
df2ee0e2 2993 X509_verify_cert_error_string(verify_err));
0f113f3e
MC		 2994 }
2995 /* Always print any error messages */
2996 ERR_print_errors(bio_err);
26a7d938 2997 return 0;
0f113f3e
MC		 2998 }
2999
ade1e888
MC		 3000 print_connection_info(con);
3001 return 1;
3002}
3003
3004static void print_connection_info(SSL *con)
3005{
3006 const char *str;
3007 X509 *peer;
3008 char buf[BUFSIZ];
3009#if !defined(OPENSSL_NO_NEXTPROTONEG)
3010 const unsigned char *next_proto_neg;
3011 unsigned next_proto_neg_len;
3012#endif
3013 unsigned char *exportedkeymat;
3014 int i;
3015
0f113f3e 3016 if (s_brief)
ecf3a1fb 3017 print_ssl_summary(con);
0f113f3e
MC		 3018
3019 PEM_write_bio_SSL_SESSION(bio_s_out, SSL_get_session(con));
3020
8c2bfd25 3021 peer = SSL_get0_peer_certificate(con);
0f113f3e
MC		 3022 if (peer != NULL) {
3023 BIO_printf(bio_s_out, "Client certificate\n");
3024 PEM_write_bio_X509(bio_s_out, peer);
b5c4209b 3025 dump_cert_text(bio_s_out, peer);
049f3655 3026 peer = NULL;
0f113f3e
MC		 3027 }
3028
cbe29648 3029 if (SSL_get_shared_ciphers(con, buf, sizeof(buf)) != NULL)
0f113f3e
MC		 3030 BIO_printf(bio_s_out, "Shared ciphers:%s\n", buf);
3031 str = SSL_CIPHER_get_name(SSL_get_current_cipher(con));
3032 ssl_print_sigalgs(bio_s_out, con);
14536c8c 3033#ifndef OPENSSL_NO_EC
0f113f3e 3034 ssl_print_point_formats(bio_s_out, con);
de4d764e 3035 ssl_print_groups(bio_s_out, con, 0);
14536c8c 3036#endif
5969a2dd 3037 print_ca_names(bio_s_out, con);
0f113f3e 3038 BIO_printf(bio_s_out, "CIPHER is %s\n", (str != NULL) ? str : "(NONE)");
e7f8ff43 3039
e481f9b9 3040#if !defined(OPENSSL_NO_NEXTPROTONEG)
0f113f3e
MC		 3041 SSL_get0_next_proto_negotiated(con, &next_proto_neg, &next_proto_neg_len);
3042 if (next_proto_neg) {
3043 BIO_printf(bio_s_out, "NEXTPROTO is ");
3044 BIO_write(bio_s_out, next_proto_neg, next_proto_neg_len);
3045 BIO_printf(bio_s_out, "\n");
3046 }
ee2ffc27 3047#endif
e783bae2 3048#ifndef OPENSSL_NO_SRTP
0f113f3e
MC		 3049 {
3050 SRTP_PROTECTION_PROFILE *srtp_profile
3051 = SSL_get_selected_srtp_profile(con);
3052
3053 if (srtp_profile)
3054 BIO_printf(bio_s_out, "SRTP Extension negotiated, profile=%s\n",
3055 srtp_profile->name);
3056 }
3057#endif
b577fd0b 3058 if (SSL_session_reused(con))
0f113f3e 3059 BIO_printf(bio_s_out, "Reused session-id\n");
af5e63e1
FG		 3060
3061 ssl_print_secure_renegotiation_notes(bio_s_out, con);
3062
db0f35dd
TS		 3063 if ((SSL_get_options(con) & SSL_OP_NO_RENEGOTIATION))
3064 BIO_printf(bio_s_out, "Renegotiation is DISABLED\n");
3065
0f113f3e
MC		 3066 if (keymatexportlabel != NULL) {
3067 BIO_printf(bio_s_out, "Keying material exporter:\n");
3068 BIO_printf(bio_s_out, " Label: '%s'\n", keymatexportlabel);
3069 BIO_printf(bio_s_out, " Length: %i bytes\n", keymatexportlen);
68dc6824 3070 exportedkeymat = app_malloc(keymatexportlen, "export key");
40649e36 3071 if (SSL_export_keying_material(con, exportedkeymat,
68dc6824
RS		 3072 keymatexportlen,
3073 keymatexportlabel,
3074 strlen(keymatexportlabel),
40649e36 3075 NULL, 0, 0) <= 0) {
68dc6824
RS		 3076 BIO_printf(bio_s_out, " Error\n");
3077 } else {
3078 BIO_printf(bio_s_out, " Keying material: ");
3079 for (i = 0; i < keymatexportlen; i++)
3080 BIO_printf(bio_s_out, "%02X", exportedkeymat[i]);
3081 BIO_printf(bio_s_out, "\n");
0f113f3e 3082 }
68dc6824 3083 OPENSSL_free(exportedkeymat);
0f113f3e 3084 }
d6c3c189
BP		 3085#ifndef OPENSSL_NO_KTLS
3086 if (BIO_get_ktls_send(SSL_get_wbio(con)))
3087 BIO_printf(bio_err, "Using Kernel TLS for sending\n");
005080aa
BP		 3088 if (BIO_get_ktls_recv(SSL_get_rbio(con)))
3089 BIO_printf(bio_err, "Using Kernel TLS for receiving\n");
d6c3c189 3090#endif
0f113f3e 3091
d6073e27 3092 (void)BIO_flush(bio_s_out);
0f113f3e 3093}
d02b48c6 3094
72d0bc84 3095static int www_body(int s, int stype, int prot, unsigned char *context)
0f113f3e 3096{
2ff286c2 3097 char *buf = NULL, *p;
0f113f3e
MC		 3098 int ret = 1;
3099 int i, j, k, dot;
3100 SSL *con;
3101 const SSL_CIPHER *c;
3102 BIO *io, *ssl_bio, *sbio;
7e1b7485
RS		 3103#ifdef RENEG
3104 int total_bytes = 0;
3105#endif
075c8795 3106 int width;
aea68b0d
HL		 3107#ifndef OPENSSL_NO_KTLS
3108 int use_sendfile_for_req = use_sendfile;
3109#endif
075c8795 3110 fd_set readfds;
c3be39f2 3111 const char *opmode;
ba0b60c6
JJ		 3112#ifdef CHARSET_EBCDIC
3113 BIO *filter;
3114#endif
075c8795
MC		 3115
3116 /* Set width for a select call if needed */
3117 width = s + 1;
d02b48c6 3118
148b592d
HK		 3119 /* as we use BIO_gets(), and it always null terminates data, we need
3120 * to allocate 1 byte longer buffer to fit the full 2^14 byte record */
3121 p = buf = app_malloc(bufsize + 1, "server www buffer");
0f113f3e
MC		 3122 io = BIO_new(BIO_f_buffer());
3123 ssl_bio = BIO_new(BIO_f_ssl());
3124 if ((io == NULL) || (ssl_bio == NULL))
3125 goto err;
d02b48c6 3126
0f113f3e 3127 if (s_nbio) {
ba810815 3128 if (!BIO_socket_nbio(s, 1))
0f113f3e 3129 ERR_print_errors(bio_err);
ba810815
RS		 3130 else if (!s_quiet)
3131 BIO_printf(bio_err, "Turned on non blocking io\n");
0f113f3e 3132 }
d02b48c6 3133
0f113f3e 3134 /* lets make the output buffer a reasonable size */
25d02f33 3135 if (BIO_set_write_buffer_size(io, bufsize) <= 0)
0f113f3e 3136 goto err;
d02b48c6 3137
0f113f3e
MC		 3138 if ((con = SSL_new(ctx)) == NULL)
3139 goto err;
e481f9b9 3140
0f113f3e
MC		 3141 if (s_tlsextdebug) {
3142 SSL_set_tlsext_debug_callback(con, tlsext_cb);
3143 SSL_set_tlsext_debug_arg(con, bio_s_out);
3144 }
e481f9b9 3145
2234212c 3146 if (context != NULL
d6073e27 3147 && !SSL_set_session_id_context(con, context,
67afcfd3
MC		 3148 strlen((char *)context))) {
3149 SSL_free(con);
ac59d705 3150 goto err;
67afcfd3 3151 }
0f113f3e
MC		 3152
3153 sbio = BIO_new_socket(s, BIO_NOCLOSE);
ba0b60c6
JJ		 3154 if (sbio == NULL) {
3155 SSL_free(con);
3156 goto err;
3157 }
3158
0f113f3e
MC		 3159 if (s_nbio_test) {
3160 BIO *test;
3161
3162 test = BIO_new(BIO_f_nbio_test());
ba0b60c6
JJ		 3163 if (test == NULL) {
3164 SSL_free(con);
3165 BIO_free(sbio);
3166 goto err;
3167 }
3168
0f113f3e
MC		 3169 sbio = BIO_push(test, sbio);
3170 }
3171 SSL_set_bio(con, sbio, sbio);
3172 SSL_set_accept_state(con);
3173
67afcfd3 3174 /* No need to free |con| after this. Done by BIO_free(ssl_bio) */
0f113f3e
MC		 3175 BIO_set_ssl(ssl_bio, con, BIO_CLOSE);
3176 BIO_push(io, ssl_bio);
1f3f8a3d 3177 ssl_bio = NULL;
a53955d8 3178#ifdef CHARSET_EBCDIC
ba0b60c6
JJ		 3179 filter = BIO_new(BIO_f_ebcdic_filter());
3180 if (filter == NULL)
3181 goto err;
3182
3183 io = BIO_push(filter, io);
a53955d8 3184#endif
d02b48c6 3185
0f113f3e 3186 if (s_debug) {
0800318a 3187 BIO_set_callback_ex(SSL_get_rbio(con), bio_dump_callback);
0f113f3e
MC		 3188 BIO_set_callback_arg(SSL_get_rbio(con), (char *)bio_s_out);
3189 }
3190 if (s_msg) {
93ab9e42 3191#ifndef OPENSSL_NO_SSL_TRACE
0f113f3e
MC		 3192 if (s_msg == 2)
3193 SSL_set_msg_callback(con, SSL_trace);
3194 else
3195#endif
3196 SSL_set_msg_callback(con, msg_cb);
3197 SSL_set_msg_callback_arg(con, bio_s_msg ? bio_s_msg : bio_s_out);
3198 }
3199
3200 for (;;) {
148b592d 3201 i = BIO_gets(io, buf, bufsize + 1);
0f113f3e 3202 if (i < 0) { /* error */
4cfa6204 3203 if (!BIO_should_retry(io) && !SSL_waiting_for_async(con)) {
0f113f3e
MC		 3204 if (!s_quiet)
3205 ERR_print_errors(bio_err);
3206 goto err;
3207 } else {
3208 BIO_printf(bio_s_out, "read R BLOCK\n");
4e7e6230
DSH		 3209#ifndef OPENSSL_NO_SRP
3210 if (BIO_should_io_special(io)
3211 && BIO_get_retry_reason(io) == BIO_RR_SSL_X509_LOOKUP) {
3212 BIO_printf(bio_s_out, "LOOKUP renego during read\n");
6d2a1eff
MC		 3213
3214 lookup_srp_user(&srp_callback_parm, bio_s_out);
3215
4e7e6230
DSH		 3216 continue;
3217 }
3218#endif
5139dec2 3219 OSSL_sleep(1000);
0f113f3e
MC		 3220 continue;
3221 }
3222 } else if (i == 0) { /* end of input */
3223 ret = 1;
3224 goto end;
3225 }
d02b48c6 3226
0f113f3e 3227 /* else we have data */
2ff286c2
DDO		 3228 if ((www == 1 && HAS_PREFIX(buf, "GET "))
3229 || (www == 2 && HAS_PREFIX(buf, "GET /stats "))) {
049f3655 3230 X509 *peer = NULL;
0f113f3e
MC		 3231 STACK_OF(SSL_CIPHER) *sk;
3232 static const char *space = " ";
3233
2ff286c2
DDO		 3234 if (www == 1 && HAS_PREFIX(buf, "GET /reneg")) {
3235 if (HAS_PREFIX(buf, "GET /renegcert"))
0f113f3e
MC		 3236 SSL_set_verify(con,
3237 SSL_VERIFY_PEER | SSL_VERIFY_CLIENT_ONCE,
3238 NULL);
3239 i = SSL_renegotiate(con);
3240 BIO_printf(bio_s_out, "SSL_renegotiate -> %d\n", i);
075c8795 3241 /* Send the HelloRequest */
0f113f3e
MC		 3242 i = SSL_do_handshake(con);
3243 if (i <= 0) {
3244 BIO_printf(bio_s_out, "SSL_do_handshake() Retval %d\n",
3245 SSL_get_error(con, i));
3246 ERR_print_errors(bio_err);
3247 goto err;
3248 }
075c8795
MC		 3249 /* Wait for a ClientHello to come back */
3250 FD_ZERO(&readfds);
3251 openssl_fdset(s, &readfds);
3252 i = select(width, (void *)&readfds, NULL, NULL, NULL);
3253 if (i <= 0 || !FD_ISSET(s, &readfds)) {
d6073e27
F		 3254 BIO_printf(bio_s_out,
3255 "Error waiting for client response\n");
0f113f3e
MC		 3256 ERR_print_errors(bio_err);
3257 goto err;
3258 }
075c8795 3259 /*
049f3655 3260 * We're not actually expecting any data here and we ignore
075c8795
MC		 3261 * any that is sent. This is just to force the handshake that
3262 * we're expecting to come from the client. If they haven't
3263 * sent one there's not much we can do.
3264 */
148b592d 3265 BIO_gets(io, buf, bufsize + 1);
0f113f3e
MC		 3266 }
3267
3268 BIO_puts(io,
3269 "HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n");
3270 BIO_puts(io, "<HTML><BODY BGCOLOR=\"#ffffff\">\n");
3271 BIO_puts(io, "<pre>\n");
049f3655 3272 /* BIO_puts(io, OpenSSL_version(OPENSSL_VERSION)); */
0f113f3e
MC		 3273 BIO_puts(io, "\n");
3274 for (i = 0; i < local_argc; i++) {
f92beb98 3275 const char *myp;
2ff286c2 3276
f92beb98
RS		 3277 for (myp = local_argv[i]; *myp; myp++)
3278 switch (*myp) {
3279 case '<':
3280 BIO_puts(io, "&lt;");
3281 break;
3282 case '>':
3283 BIO_puts(io, "&gt;");
3284 break;
3285 case '&':
3286 BIO_puts(io, "&amp;");
3287 break;
3288 default:
3289 BIO_write(io, myp, 1);
3290 break;
3291 }
0f113f3e
MC		 3292 BIO_write(io, " ", 1);
3293 }
3294 BIO_puts(io, "\n");
3295
af5e63e1 3296 ssl_print_secure_renegotiation_notes(io, con);
0f113f3e
MC		 3297
3298 /*
3299 * The following is evil and should not really be done
3300 */
3301 BIO_printf(io, "Ciphers supported in s_server binary\n");
3302 sk = SSL_get_ciphers(con);
3303 j = sk_SSL_CIPHER_num(sk);
3304 for (i = 0; i < j; i++) {
3305 c = sk_SSL_CIPHER_value(sk, i);
7e1b7485 3306 BIO_printf(io, "%-11s:%-25s ",
0f113f3e
MC		 3307 SSL_CIPHER_get_version(c), SSL_CIPHER_get_name(c));
3308 if ((((i + 1) % 2) == 0) && (i + 1 != j))
3309 BIO_puts(io, "\n");
3310 }
3311 BIO_puts(io, "\n");
3312 p = SSL_get_shared_ciphers(con, buf, bufsize);
3313 if (p != NULL) {
3314 BIO_printf(io,
3315 "---\nCiphers common between both SSL end points:\n");
3316 j = i = 0;
3317 while (*p) {
3318 if (*p == ':') {
3319 BIO_write(io, space, 26 - j);
3320 i++;
3321 j = 0;
3322 BIO_write(io, ((i % 3) ? " " : "\n"), 1);
3323 } else {
3324 BIO_write(io, p, 1);
3325 j++;
3326 }
3327 p++;
3328 }
3329 BIO_puts(io, "\n");
3330 }
3331 ssl_print_sigalgs(io, con);
3332#ifndef OPENSSL_NO_EC
de4d764e 3333 ssl_print_groups(io, con, 0);
0f113f3e 3334#endif
5969a2dd 3335 print_ca_names(io, con);
b577fd0b 3336 BIO_printf(io, (SSL_session_reused(con)
0f113f3e
MC		 3337 ? "---\nReused, " : "---\nNew, "));
3338 c = SSL_get_current_cipher(con);
3339 BIO_printf(io, "%s, Cipher is %s\n",
3340 SSL_CIPHER_get_version(c), SSL_CIPHER_get_name(c));
3341 SSL_SESSION_print(io, SSL_get_session(con));
3342 BIO_printf(io, "---\n");
3343 print_stats(io, SSL_get_SSL_CTX(con));
3344 BIO_printf(io, "---\n");
8c2bfd25 3345 peer = SSL_get0_peer_certificate(con);
0f113f3e
MC		 3346 if (peer != NULL) {
3347 BIO_printf(io, "Client certificate\n");
3348 X509_print(io, peer);
3349 PEM_write_bio_X509(io, peer);
049f3655 3350 peer = NULL;
1a9f5cf0 3351 } else {
0f113f3e 3352 BIO_puts(io, "no client certificate available\n");
1a9f5cf0
XL		 3353 }
3354 BIO_puts(io, "</pre></BODY></HTML>\r\n\r\n");
0f113f3e 3355 break;
2e3b8292 3356 } else if ((www == 2 || www == 3) && CHECK_AND_SKIP_PREFIX(p, "GET /")) {
0f113f3e 3357 BIO *file;
2ff286c2 3358 char *e;
0f113f3e
MC		 3359 static const char *text =
3360 "HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n";
3361
0f113f3e
MC		 3362 dot = 1;
3363 for (e = p; *e != '\0'; e++) {
3364 if (e[0] == ' ')
3365 break;
3366
0a4d6c67
MC		 3367 if (e[0] == ':') {
3368 /* Windows drive. We treat this the same way as ".." */
3369 dot = -1;
3370 break;
3371 }
3372
0f113f3e
MC		 3373 switch (dot) {
3374 case 1:
3375 dot = (e[0] == '.') ? 2 : 0;
3376 break;
3377 case 2:
3378 dot = (e[0] == '.') ? 3 : 0;
3379 break;
3380 case 3:
0a4d6c67 3381 dot = (e[0] == '/' || e[0] == '\\') ? -1 : 0;
0f113f3e
MC		 3382 break;
3383 }
3384 if (dot == 0)
0a4d6c67 3385 dot = (e[0] == '/' || e[0] == '\\') ? 1 : 0;
0f113f3e
MC		 3386 }
3387 dot = (dot == 3) || (dot == -1); /* filename contains ".."
3388 * component */
3389
3390 if (*e == '\0') {
3391 BIO_puts(io, text);
3392 BIO_printf(io, "'%s' is an invalid file name\r\n", p);
3393 break;
3394 }
3395 *e = '\0';
3396
3397 if (dot) {
3398 BIO_puts(io, text);
0a4d6c67 3399 BIO_printf(io, "'%s' contains '..' or ':'\r\n", p);
0f113f3e
MC		 3400 break;
3401 }
3402
0a4d6c67 3403 if (*p == '/' || *p == '\\') {
0f113f3e
MC		 3404 BIO_puts(io, text);
3405 BIO_printf(io, "'%s' is an invalid path\r\n", p);
3406 break;
3407 }
d02b48c6 3408
0f113f3e
MC		 3409 /* if a directory, do the index thang */
3410 if (app_isdir(p) > 0) {
0f113f3e
MC		 3411 BIO_puts(io, text);
3412 BIO_printf(io, "'%s' is a directory\r\n", p);
3413 break;
0f113f3e
MC		 3414 }
3415
c3be39f2
LZ		 3416 opmode = (http_server_binmode == 1) ? "rb" : "r";
3417 if ((file = BIO_new_file(p, opmode)) == NULL) {
0f113f3e 3418 BIO_puts(io, text);
c3be39f2 3419 BIO_printf(io, "Error opening '%s' mode='%s'\r\n", p, opmode);
0f113f3e
MC		 3420 ERR_print_errors(io);
3421 break;
3422 }
3423
3424 if (!s_quiet)
3425 BIO_printf(bio_err, "FILE:%s\n", p);
3426
3427 if (www == 2) {
3428 i = strlen(p);
3429 if (((i > 5) && (strcmp(&(p[i - 5]), ".html") == 0)) ||
3430 ((i > 4) && (strcmp(&(p[i - 4]), ".php") == 0)) ||
3431 ((i > 4) && (strcmp(&(p[i - 4]), ".htm") == 0)))
3432 BIO_puts(io,
3433 "HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n");
3434 else
3435 BIO_puts(io,
3436 "HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n");
3437 }
3438 /* send the file */
cd81ac7b 3439#ifndef OPENSSL_NO_KTLS
aea68b0d
HL		 3440 if (use_sendfile_for_req && !BIO_get_ktls_send(SSL_get_wbio(con))) {
3441 BIO_printf(bio_err, "Warning: sendfile requested but KTLS is not available\n");
3442 use_sendfile_for_req = 0;
3443 }
3444 if (use_sendfile_for_req) {
cd81ac7b
TZ		 3445 FILE *fp = NULL;
3446 int fd;
3447 struct stat st;
3448 off_t offset = 0;
3449 size_t filesize;
3450
3451 BIO_get_fp(file, &fp);
3452 fd = fileno(fp);
3453 if (fstat(fd, &st) < 0) {
3454 BIO_printf(io, "Error fstat '%s'\r\n", p);
3455 ERR_print_errors(io);
3456 goto write_error;
3457 }
d02b48c6 3458
cd81ac7b
TZ		 3459 filesize = st.st_size;
3460 if (((int)BIO_flush(io)) < 0)
3461 goto write_error;
3462
3463 for (;;) {
3464 i = SSL_sendfile(con, fd, offset, filesize, 0);
3465 if (i < 0) {
3466 BIO_printf(io, "Error SSL_sendfile '%s'\r\n", p);
3467 ERR_print_errors(io);
3468 break;
3469 } else {
3470 offset += i;
3471 filesize -= i;
3472 }
3473
3474 if (filesize <= 0) {
3475 if (!s_quiet)
3476 BIO_printf(bio_err, "KTLS SENDFILE '%s' OK\n", p);
3477
3478 break;
3479 }
0f113f3e 3480 }
cd81ac7b 3481 } else
0f113f3e 3482#endif
cd81ac7b
TZ		 3483 {
3484 for (;;) {
3485 i = BIO_read(file, buf, bufsize);
3486 if (i <= 0)
3487 break;
0f113f3e 3488
58964a49 3489#ifdef RENEG
cd81ac7b
TZ		 3490 total_bytes += i;
3491 BIO_printf(bio_err, "%d\n", i);
3492 if (total_bytes > 3 * 1024) {
3493 total_bytes = 0;
3494 BIO_printf(bio_err, "RENEGOTIATE\n");
54463e4f 3495 SSL_renegotiate(con);
0f113f3e
MC		 3496 }
3497#endif
cd81ac7b
TZ		 3498
3499 for (j = 0; j < i;) {
3500#ifdef RENEG
3501 static count = 0;
3502 if (++count == 13)
3503 SSL_renegotiate(con);
3504#endif
3505 k = BIO_write(io, &(buf[j]), i - j);
3506 if (k <= 0) {
3507 if (!BIO_should_retry(io)
3508 && !SSL_waiting_for_async(con)) {
3509 goto write_error;
3510 } else {
3511 BIO_printf(bio_s_out, "rwrite W BLOCK\n");
3512 }
3513 } else {
3514 j += k;
0f113f3e 3515 }
0f113f3e
MC		 3516 }
3517 }
3518 }
3519 write_error:
3520 BIO_free(file);
3521 break;
3522 }
3523 }
3524
3525 for (;;) {
3526 i = (int)BIO_flush(io);
3527 if (i <= 0) {
3528 if (!BIO_should_retry(io))
3529 break;
3530 } else
3531 break;
3532 }
3533 end:
0f113f3e 3534 /* make sure we re-use sessions */
edbb56ee 3535 do_ssl_shutdown(con);
d02b48c6 3536
0f113f3e 3537 err:
b548a1f1 3538 OPENSSL_free(buf);
1f3f8a3d 3539 BIO_free(ssl_bio);
ca3a82c3 3540 BIO_free_all(io);
26a7d938 3541 return ret;
0f113f3e 3542}
d02b48c6 3543
72d0bc84 3544static int rev_body(int s, int stype, int prot, unsigned char *context)
0f113f3e
MC		 3545{
3546 char *buf = NULL;
3547 int i;
3548 int ret = 1;
3549 SSL *con;
3550 BIO *io, *ssl_bio, *sbio;
ba0b60c6
JJ		 3551#ifdef CHARSET_EBCDIC
3552 BIO *filter;
3553#endif
4f3df8be 3554
148b592d
HK		 3555 /* as we use BIO_gets(), and it always null terminates data, we need
3556 * to allocate 1 byte longer buffer to fit the full 2^14 byte record */
3557 buf = app_malloc(bufsize + 1, "server rev buffer");
0f113f3e
MC		 3558 io = BIO_new(BIO_f_buffer());
3559 ssl_bio = BIO_new(BIO_f_ssl());
3560 if ((io == NULL) || (ssl_bio == NULL))
3561 goto err;
4f3df8be 3562
0f113f3e 3563 /* lets make the output buffer a reasonable size */
25d02f33 3564 if (BIO_set_write_buffer_size(io, bufsize) <= 0)
0f113f3e 3565 goto err;
4f3df8be 3566
0f113f3e
MC		 3567 if ((con = SSL_new(ctx)) == NULL)
3568 goto err;
e481f9b9 3569
0f113f3e
MC		 3570 if (s_tlsextdebug) {
3571 SSL_set_tlsext_debug_callback(con, tlsext_cb);
3572 SSL_set_tlsext_debug_arg(con, bio_s_out);
3573 }
2234212c 3574 if (context != NULL
d6073e27
F		 3575 && !SSL_set_session_id_context(con, context,
3576 strlen((char *)context))) {
67afcfd3 3577 SSL_free(con);
ac59d705
MC		 3578 ERR_print_errors(bio_err);
3579 goto err;
3580 }
0f113f3e
MC		 3581
3582 sbio = BIO_new_socket(s, BIO_NOCLOSE);
ba0b60c6
JJ		 3583 if (sbio == NULL) {
3584 SSL_free(con);
3585 ERR_print_errors(bio_err);
3586 goto err;
3587 }
3588
0f113f3e
MC		 3589 SSL_set_bio(con, sbio, sbio);
3590 SSL_set_accept_state(con);
3591
67afcfd3 3592 /* No need to free |con| after this. Done by BIO_free(ssl_bio) */
0f113f3e
MC		 3593 BIO_set_ssl(ssl_bio, con, BIO_CLOSE);
3594 BIO_push(io, ssl_bio);
1f3f8a3d 3595 ssl_bio = NULL;
4f3df8be 3596#ifdef CHARSET_EBCDIC
ba0b60c6
JJ		 3597 filter = BIO_new(BIO_f_ebcdic_filter());
3598 if (filter == NULL)
3599 goto err;
3600
3601 io = BIO_push(filter, io);
4f3df8be
DSH		 3602#endif
3603
0f113f3e 3604 if (s_debug) {
0800318a 3605 BIO_set_callback_ex(SSL_get_rbio(con), bio_dump_callback);
0f113f3e
MC		 3606 BIO_set_callback_arg(SSL_get_rbio(con), (char *)bio_s_out);
3607 }
3608 if (s_msg) {
4f3df8be 3609#ifndef OPENSSL_NO_SSL_TRACE
0f113f3e
MC		 3610 if (s_msg == 2)
3611 SSL_set_msg_callback(con, SSL_trace);
3612 else
3613#endif
3614 SSL_set_msg_callback(con, msg_cb);
3615 SSL_set_msg_callback_arg(con, bio_s_msg ? bio_s_msg : bio_s_out);
3616 }
3617
3618 for (;;) {
3619 i = BIO_do_handshake(io);
3620 if (i > 0)
3621 break;
3622 if (!BIO_should_retry(io)) {
3623 BIO_puts(bio_err, "CONNECTION FAILURE\n");
3624 ERR_print_errors(bio_err);
3625 goto end;
3626 }
4e7e6230
DSH		 3627#ifndef OPENSSL_NO_SRP
3628 if (BIO_should_io_special(io)
3629 && BIO_get_retry_reason(io) == BIO_RR_SSL_X509_LOOKUP) {
3630 BIO_printf(bio_s_out, "LOOKUP renego during accept\n");
6d2a1eff
MC		 3631
3632 lookup_srp_user(&srp_callback_parm, bio_s_out);
3633
4e7e6230
DSH		 3634 continue;
3635 }
3636#endif
0f113f3e
MC		 3637 }
3638 BIO_printf(bio_err, "CONNECTION ESTABLISHED\n");
ecf3a1fb 3639 print_ssl_summary(con);
0f113f3e
MC		 3640
3641 for (;;) {
148b592d 3642 i = BIO_gets(io, buf, bufsize + 1);
0f113f3e
MC		 3643 if (i < 0) { /* error */
3644 if (!BIO_should_retry(io)) {
3645 if (!s_quiet)
3646 ERR_print_errors(bio_err);
3647 goto err;
3648 } else {
3649 BIO_printf(bio_s_out, "read R BLOCK\n");
4e7e6230
DSH		 3650#ifndef OPENSSL_NO_SRP
3651 if (BIO_should_io_special(io)
3652 && BIO_get_retry_reason(io) == BIO_RR_SSL_X509_LOOKUP) {
3653 BIO_printf(bio_s_out, "LOOKUP renego during read\n");
6d2a1eff
MC		 3654
3655 lookup_srp_user(&srp_callback_parm, bio_s_out);
3656
4e7e6230
DSH		 3657 continue;
3658 }
3659#endif
5139dec2 3660 OSSL_sleep(1000);
0f113f3e
MC		 3661 continue;
3662 }
3663 } else if (i == 0) { /* end of input */
3664 ret = 1;
3665 BIO_printf(bio_err, "CONNECTION CLOSED\n");
3666 goto end;
3667 } else {
3668 char *p = buf + i - 1;
3669 while (i && (*p == '\n' || *p == '\r')) {
3670 p--;
3671 i--;
3672 }
2ff286c2 3673 if (!s_ign_eof && i == 5 && HAS_PREFIX(buf, "CLOSE")) {
0f113f3e
MC		 3674 ret = 1;
3675 BIO_printf(bio_err, "CONNECTION CLOSED\n");
3676 goto end;
3677 }
3678 BUF_reverse((unsigned char *)buf, NULL, i);
3679 buf[i] = '\n';
3680 BIO_write(io, buf, i + 1);
3681 for (;;) {
3682 i = BIO_flush(io);
3683 if (i > 0)
3684 break;
3685 if (!BIO_should_retry(io))
3686 goto end;
3687 }
3688 }
3689 }
3690 end:
3691 /* make sure we re-use sessions */
edbb56ee 3692 do_ssl_shutdown(con);
0f113f3e
MC		 3693
3694 err:
3695
b548a1f1 3696 OPENSSL_free(buf);
1f3f8a3d 3697 BIO_free(ssl_bio);
ca3a82c3 3698 BIO_free_all(io);
26a7d938 3699 return ret;
0f113f3e 3700}
4f3df8be 3701
1aa0d947 3702#define MAX_SESSION_ID_ATTEMPTS 10
ae3947de 3703static int generate_session_id(SSL *ssl, unsigned char *id,
0f113f3e
MC		 3704 unsigned int *id_len)
3705{
3706 unsigned int count = 0;
4bac25e1 3707 unsigned int session_id_prefix_len = strlen(session_id_prefix);
29f178bd 3708
0f113f3e 3709 do {
266483d2
MC		 3710 if (RAND_bytes(id, *id_len) <= 0)
3711 return 0;
0f113f3e
MC		 3712 /*
3713 * Prefix the session_id with the required prefix. NB: If our prefix
3714 * is too long, clip it - but there will be worse effects anyway, eg.
3715 * the server could only possibly create 1 session ID (ie. the
3716 * prefix!) so all future session negotiations will fail due to
3717 * conflicts.
3718 */
3719 memcpy(id, session_id_prefix,
4bac25e1 3720 (session_id_prefix_len < *id_len) ?
3721 session_id_prefix_len : *id_len);
0f113f3e
MC		 3722 }
3723 while (SSL_has_matching_session_id(ssl, id, *id_len) &&
3724 (++count < MAX_SESSION_ID_ATTEMPTS));
3725 if (count >= MAX_SESSION_ID_ATTEMPTS)
3726 return 0;
3727 return 1;
3728}
3729
3730/*
3731 * By default s_server uses an in-memory cache which caches SSL_SESSION
aa97970c 3732 * structures without any serialization. This hides some bugs which only
35b0ea4e
DSH		 3733 * become apparent in deployed servers. By implementing a basic external
3734 * session cache some issues can be debugged using s_server.
3735 */
3736
0f113f3e
MC		 3737typedef struct simple_ssl_session_st {
3738 unsigned char *id;
3739 unsigned int idlen;
3740 unsigned char *der;
3741 int derlen;
3742 struct simple_ssl_session_st *next;
3743} simple_ssl_session;
35b0ea4e
DSH		 3744
3745static simple_ssl_session *first = NULL;
3746
3747static int add_session(SSL *ssl, SSL_SESSION *session)
0f113f3e 3748{
b4faea50 3749 simple_ssl_session *sess = app_malloc(sizeof(*sess), "get session");
0f113f3e 3750 unsigned char *p;
35b0ea4e 3751
0f113f3e
MC		 3752 SSL_SESSION_get_id(session, &sess->idlen);
3753 sess->derlen = i2d_SSL_SESSION(session, NULL);
7e1b7485
RS		 3754 if (sess->derlen < 0) {
3755 BIO_printf(bio_err, "Error encoding session\n");
a194ee7b 3756 OPENSSL_free(sess);
7e1b7485
RS		 3757 return 0;
3758 }
35b0ea4e 3759
7644a9ae 3760 sess->id = OPENSSL_memdup(SSL_SESSION_get_id(session, NULL), sess->idlen);
68dc6824
RS		 3761 sess->der = app_malloc(sess->derlen, "get session buffer");
3762 if (!sess->id) {
7e1b7485 3763 BIO_printf(bio_err, "Out of memory adding to external cache\n");
a194ee7b
RS		 3764 OPENSSL_free(sess->id);
3765 OPENSSL_free(sess->der);
918bb865
MC		 3766 OPENSSL_free(sess);
3767 return 0;
3768 }
0f113f3e 3769 p = sess->der;
7e1b7485
RS		 3770
3771 /* Assume it still works. */
3772 if (i2d_SSL_SESSION(session, &p) != sess->derlen) {
ce6766de 3773 BIO_printf(bio_err, "Unexpected session encoding length\n");
a194ee7b
RS		 3774 OPENSSL_free(sess->id);
3775 OPENSSL_free(sess->der);
3776 OPENSSL_free(sess);
ac59d705
MC		 3777 return 0;
3778 }
35b0ea4e 3779
0f113f3e
MC		 3780 sess->next = first;
3781 first = sess;
3782 BIO_printf(bio_err, "New session added to external cache\n");
3783 return 0;
3784}
35b0ea4e 3785
b6981744 3786static SSL_SESSION *get_session(SSL *ssl, const unsigned char *id, int idlen,
0f113f3e
MC		 3787 int *do_copy)
3788{
3789 simple_ssl_session *sess;
3790 *do_copy = 0;
3791 for (sess = first; sess; sess = sess->next) {
3792 if (idlen == (int)sess->idlen && !memcmp(sess->id, id, idlen)) {
3793 const unsigned char *p = sess->der;
3794 BIO_printf(bio_err, "Lookup session: cache hit\n");
3795 return d2i_SSL_SESSION(NULL, &p, sess->derlen);
3796 }
3797 }
3798 BIO_printf(bio_err, "Lookup session: cache miss\n");
3799 return NULL;
3800}
35b0ea4e
DSH		 3801
3802static void del_session(SSL_CTX *sctx, SSL_SESSION *session)
0f113f3e
MC		 3803{
3804 simple_ssl_session *sess, *prev = NULL;
3805 const unsigned char *id;
3806 unsigned int idlen;
3807 id = SSL_SESSION_get_id(session, &idlen);
3808 for (sess = first; sess; sess = sess->next) {
3809 if (idlen == sess->idlen && !memcmp(sess->id, id, idlen)) {
3810 if (prev)
3811 prev->next = sess->next;
3812 else
3813 first = sess->next;
3814 OPENSSL_free(sess->id);
3815 OPENSSL_free(sess->der);
3816 OPENSSL_free(sess);
3817 return;
3818 }
3819 prev = sess;
3820 }
3821}
35b0ea4e
DSH		 3822
3823static void init_session_cache_ctx(SSL_CTX *sctx)
0f113f3e
MC		 3824{
3825 SSL_CTX_set_session_cache_mode(sctx,
3826 SSL_SESS_CACHE_NO_INTERNAL |
3827 SSL_SESS_CACHE_SERVER);
3828 SSL_CTX_sess_set_new_cb(sctx, add_session);
3829 SSL_CTX_sess_set_get_cb(sctx, get_session);
3830 SSL_CTX_sess_set_remove_cb(sctx, del_session);
3831}
35b0ea4e
DSH		 3832
3833static void free_sessions(void)
0f113f3e
MC		 3834{
3835 simple_ssl_session *sess, *tsess;
3836 for (sess = first; sess;) {
3837 OPENSSL_free(sess->id);
3838 OPENSSL_free(sess->der);
3839 tsess = sess;
3840 sess = sess->next;
3841 OPENSSL_free(tsess);
3842 }
3843 first = NULL;
3844}
f9e55034 3845
d6073e27 3846#endif /* OPENSSL_NO_SOCK */
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