1 /*
2 * Copyright 1995-2025 The OpenSSL Project Authors. All Rights Reserved.
3 * Copyright (c) 2002, Oracle and/or its affiliates. All rights reserved
4 * Copyright 2005 Nokia. All rights reserved.
5 *
6 * Licensed under the Apache License 2.0 (the "License"). You may not use
7 * this file except in compliance with the License. You can obtain a copy
8 * in the file LICENSE in the source distribution or at
9 * https://www.openssl.org/source/license.html
10 */
11
12 #include "internal/e_os.h"
13
14 #include <ctype.h>
15 #include <stdio.h>
16 #include <stdlib.h>
17 #include <string.h>
18 #if defined(_WIN32)
19 /* Included before async.h to avoid some warnings */
20 #include <windows.h>
21 #endif
22
23 #include <openssl/e_os2.h>
24 #include <openssl/async.h>
25 #include <openssl/ssl.h>
26 #include <openssl/decoder.h>
27 #include "internal/sockets.h" /* for openssl_fdset() */
28
29 #ifndef OPENSSL_NO_SOCK
30
31 /*
32 * With IPv6, it looks like Digital has mixed up the proper order of
33 * recursive header file inclusion, resulting in the compiler complaining
34 * that u_int isn't defined, but only if _POSIX_C_SOURCE is defined, which is
35 * needed to have fileno() declared correctly... So let's define u_int
36 */
37 #if defined(OPENSSL_SYS_VMS_DECC) && !defined(__U_INT)
38 #define __U_INT
39 typedef unsigned int u_int;
40 #endif
41
42 #include <openssl/bn.h>
43 #include "apps.h"
44 #include "progs.h"
45 #include <openssl/err.h>
46 #include <openssl/pem.h>
47 #include <openssl/x509.h>
48 #include <openssl/rand.h>
49 #include <openssl/ocsp.h>
50 #ifndef OPENSSL_NO_DH
51 #include <openssl/dh.h>
52 #endif
53 #include <openssl/rsa.h>
54 #include "s_apps.h"
55 #include "timeouts.h"
56 #ifdef CHARSET_EBCDIC
57 #include <openssl/ebcdic.h>
58 #endif
59 #include "internal/sockets.h"
60
61 static int not_resumable_sess_cb(SSL *s, int is_forward_secure);
62 static int sv_body(int s, int stype, int prot, unsigned char *context);
63 static int www_body(int s, int stype, int prot, unsigned char *context);
64 static int rev_body(int s, int stype, int prot, unsigned char *context);
65 static void close_accept_socket(void);
66 static int init_ssl_connection(SSL *s);
67 static void print_stats(BIO *bp, SSL_CTX *ctx);
68 static int generate_session_id(SSL *ssl, unsigned char *id,
69 unsigned int *id_len);
70 static void init_session_cache_ctx(SSL_CTX *sctx);
71 static void free_sessions(void);
72 static void print_connection_info(SSL *con);
73
74 static const int bufsize = 16 * 1024;
75 static int accept_socket = -1;
76
77 #define TEST_CERT "server.pem"
78 #define TEST_CERT2 "server2.pem"
79
80 static int s_nbio = 0;
81 static int s_nbio_test = 0;
82 static int s_crlf = 0;
83 static SSL_CTX *ctx = NULL;
84 static SSL_CTX *ctx2 = NULL;
85 static int www = 0;
86
87 static BIO *bio_s_out = NULL;
88 static BIO *bio_s_msg = NULL;
89 static int s_debug = 0;
90 static int s_tlsextdebug = 0;
91 static int s_msg = 0;
92 static int s_quiet = 0;
93 static int s_ign_eof = 0;
94 static int s_brief = 0;
95
96 static char *keymatexportlabel = NULL;
97 static int keymatexportlen = 20;
98
99 static int async = 0;
100
101 static int use_sendfile = 0;
102 static int use_zc_sendfile = 0;
103
104 static const char *session_id_prefix = NULL;
105
106 static const unsigned char cert_type_rpk[] = { TLSEXT_cert_type_rpk, TLSEXT_cert_type_x509 };
107 static int enable_client_rpk = 0;
108
109 #ifndef OPENSSL_NO_DTLS
110 static int enable_timeouts = 0;
111 static long socket_mtu;
112 #endif
113
114 /*
115 * We define this but make it always be 0 in no-dtls builds to simplify the
116 * code.
117 */
118 static int dtlslisten = 0;
119 static int stateless = 0;
120
121 static int early_data = 0;
122 static SSL_SESSION *psksess = NULL;
123
124 static char *psk_identity = "Client_identity";
125 char *psk_key = NULL; /* by default PSK is not used */
126
127 static char http_server_binmode = 0; /* for now: 0/1 = default/binary */
128
129 #ifndef OPENSSL_NO_PSK
psk_server_cb(SSL * ssl,const char * identity,unsigned char * psk,unsigned int max_psk_len)130 static unsigned int psk_server_cb(SSL *ssl, const char *identity,
131 unsigned char *psk,
132 unsigned int max_psk_len)
133 {
134 long key_len = 0;
135 unsigned char *key;
136
137 if (s_debug)
138 BIO_printf(bio_s_out, "psk_server_cb\n");
139
140 if (!SSL_is_dtls(ssl) && SSL_version(ssl) >= TLS1_3_VERSION) {
141 /*
142 * This callback is designed for use in (D)TLSv1.2 (or below). It is
143 * possible to use a single callback for all protocol versions - but it
144 * is preferred to use a dedicated callback for TLSv1.3. For TLSv1.3 we
145 * have psk_find_session_cb.
146 */
147 return 0;
148 }
149
150 if (identity == NULL) {
151 BIO_printf(bio_err, "Error: client did not send PSK identity\n");
152 goto out_err;
153 }
154 if (s_debug)
155 BIO_printf(bio_s_out, "identity_len=%d identity=%s\n",
156 (int)strlen(identity), identity);
157
158 /* here we could lookup the given identity e.g. from a database */
159 if (strcmp(identity, psk_identity) != 0) {
160 BIO_printf(bio_s_out, "PSK warning: client identity not what we expected"
161 " (got '%s' expected '%s')\n",
162 identity, psk_identity);
163 } else {
164 if (s_debug)
165 BIO_printf(bio_s_out, "PSK client identity found\n");
166 }
167
168 /* convert the PSK key to binary */
169 key = OPENSSL_hexstr2buf(psk_key, &key_len);
170 if (key == NULL) {
171 BIO_printf(bio_err, "Could not convert PSK key '%s' to buffer\n",
172 psk_key);
173 return 0;
174 }
175 if (key_len > (int)max_psk_len) {
176 BIO_printf(bio_err,
177 "psk buffer of callback is too small (%d) for key (%ld)\n",
178 max_psk_len, key_len);
179 OPENSSL_free(key);
180 return 0;
181 }
182
183 memcpy(psk, key, key_len);
184 OPENSSL_free(key);
185
186 if (s_debug)
187 BIO_printf(bio_s_out, "fetched PSK len=%ld\n", key_len);
188 return key_len;
189 out_err:
190 if (s_debug)
191 BIO_printf(bio_err, "Error in PSK server callback\n");
192 (void)BIO_flush(bio_err);
193 (void)BIO_flush(bio_s_out);
194 return 0;
195 }
196 #endif
197
psk_find_session_cb(SSL * ssl,const unsigned char * identity,size_t identity_len,SSL_SESSION ** sess)198 static int psk_find_session_cb(SSL *ssl, const unsigned char *identity,
199 size_t identity_len, SSL_SESSION **sess)
200 {
201 SSL_SESSION *tmpsess = NULL;
202 unsigned char *key;
203 long key_len;
204 const SSL_CIPHER *cipher = NULL;
205
206 if (strlen(psk_identity) != identity_len
207 || memcmp(psk_identity, identity, identity_len) != 0) {
208 *sess = NULL;
209 return 1;
210 }
211
212 if (psksess != NULL) {
213 if (!SSL_SESSION_up_ref(psksess))
214 return 0;
215
216 *sess = psksess;
217 return 1;
218 }
219
220 key = OPENSSL_hexstr2buf(psk_key, &key_len);
221 if (key == NULL) {
222 BIO_printf(bio_err, "Could not convert PSK key '%s' to buffer\n",
223 psk_key);
224 return 0;
225 }
226
227 /* We default to SHA256 */
228 cipher = SSL_CIPHER_find(ssl, tls13_aes128gcmsha256_id);
229 if (cipher == NULL) {
230 BIO_printf(bio_err, "Error finding suitable ciphersuite\n");
231 OPENSSL_free(key);
232 return 0;
233 }
234
235 tmpsess = SSL_SESSION_new();
236 if (tmpsess == NULL
237 || !SSL_SESSION_set1_master_key(tmpsess, key, key_len)
238 || !SSL_SESSION_set_cipher(tmpsess, cipher)
239 || !SSL_SESSION_set_protocol_version(tmpsess, SSL_version(ssl))) {
240 OPENSSL_free(key);
241 SSL_SESSION_free(tmpsess);
242 return 0;
243 }
244 OPENSSL_free(key);
245 *sess = tmpsess;
246
247 return 1;
248 }
249
250 #ifndef OPENSSL_NO_SRP
251 static srpsrvparm srp_callback_parm;
252 #endif
253
254 static int local_argc = 0;
255 static char **local_argv;
256
257 #ifdef CHARSET_EBCDIC
258 static int ebcdic_new(BIO *bi);
259 static int ebcdic_free(BIO *a);
260 static int ebcdic_read(BIO *b, char *out, int outl);
261 static int ebcdic_write(BIO *b, const char *in, int inl);
262 static long ebcdic_ctrl(BIO *b, int cmd, long num, void *ptr);
263 static int ebcdic_gets(BIO *bp, char *buf, int size);
264 static int ebcdic_puts(BIO *bp, const char *str);
265
266 #define BIO_TYPE_EBCDIC_FILTER (18 | 0x0200)
267 static BIO_METHOD *methods_ebcdic = NULL;
268
269 /* This struct is "unwarranted chumminess with the compiler." */
270 typedef struct {
271 size_t alloced;
272 char buff[1];
273 } EBCDIC_OUTBUFF;
274
BIO_f_ebcdic_filter(void)275 static const BIO_METHOD *BIO_f_ebcdic_filter(void)
276 {
277 if (methods_ebcdic == NULL) {
278 methods_ebcdic = BIO_meth_new(BIO_TYPE_EBCDIC_FILTER,
279 "EBCDIC/ASCII filter");
280 if (methods_ebcdic == NULL
281 || !BIO_meth_set_write(methods_ebcdic, ebcdic_write)
282 || !BIO_meth_set_read(methods_ebcdic, ebcdic_read)
283 || !BIO_meth_set_puts(methods_ebcdic, ebcdic_puts)
284 || !BIO_meth_set_gets(methods_ebcdic, ebcdic_gets)
285 || !BIO_meth_set_ctrl(methods_ebcdic, ebcdic_ctrl)
286 || !BIO_meth_set_create(methods_ebcdic, ebcdic_new)
287 || !BIO_meth_set_destroy(methods_ebcdic, ebcdic_free))
288 return NULL;
289 }
290 return methods_ebcdic;
291 }
292
ebcdic_new(BIO * bi)293 static int ebcdic_new(BIO *bi)
294 {
295 EBCDIC_OUTBUFF *wbuf;
296
297 wbuf = app_malloc(sizeof(*wbuf) + 1024, "ebcdic wbuf");
298 wbuf->alloced = 1024;
299 wbuf->buff[0] = '\0';
300
301 BIO_set_data(bi, wbuf);
302 BIO_set_init(bi, 1);
303 return 1;
304 }
305
ebcdic_free(BIO * a)306 static int ebcdic_free(BIO *a)
307 {
308 EBCDIC_OUTBUFF *wbuf;
309
310 if (a == NULL)
311 return 0;
312 wbuf = BIO_get_data(a);
313 OPENSSL_free(wbuf);
314 BIO_set_data(a, NULL);
315 BIO_set_init(a, 0);
316
317 return 1;
318 }
319
ebcdic_read(BIO * b,char * out,int outl)320 static int ebcdic_read(BIO *b, char *out, int outl)
321 {
322 int ret = 0;
323 BIO *next = BIO_next(b);
324
325 if (out == NULL || outl == 0)
326 return 0;
327 if (next == NULL)
328 return 0;
329
330 ret = BIO_read(next, out, outl);
331 if (ret > 0)
332 ascii2ebcdic(out, out, ret);
333 return ret;
334 }
335
ebcdic_write(BIO * b,const char * in,int inl)336 static int ebcdic_write(BIO *b, const char *in, int inl)
337 {
338 EBCDIC_OUTBUFF *wbuf;
339 BIO *next = BIO_next(b);
340 int ret = 0;
341 int num;
342
343 if ((in == NULL) || (inl <= 0))
344 return 0;
345 if (next == NULL)
346 return 0;
347
348 wbuf = (EBCDIC_OUTBUFF *)BIO_get_data(b);
349
350 if (inl > (num = wbuf->alloced)) {
351 num = num + num; /* double the size */
352 if (num < inl)
353 num = inl;
354 OPENSSL_free(wbuf);
355 wbuf = app_malloc(sizeof(*wbuf) + num, "grow ebcdic wbuf");
356
357 wbuf->alloced = num;
358 wbuf->buff[0] = '\0';
359
360 BIO_set_data(b, wbuf);
361 }
362
363 ebcdic2ascii(wbuf->buff, in, inl);
364
365 ret = BIO_write(next, wbuf->buff, inl);
366
367 return ret;
368 }
369
ebcdic_ctrl(BIO * b,int cmd,long num,void * ptr)370 static long ebcdic_ctrl(BIO *b, int cmd, long num, void *ptr)
371 {
372 long ret;
373 BIO *next = BIO_next(b);
374
375 if (next == NULL)
376 return 0;
377 switch (cmd) {
378 case BIO_CTRL_DUP:
379 ret = 0L;
380 break;
381 default:
382 ret = BIO_ctrl(next, cmd, num, ptr);
383 break;
384 }
385 return ret;
386 }
387
ebcdic_gets(BIO * bp,char * buf,int size)388 static int ebcdic_gets(BIO *bp, char *buf, int size)
389 {
390 int i, ret = 0;
391 BIO *next = BIO_next(bp);
392
393 if (next == NULL)
394 return 0;
395 /* return(BIO_gets(bp->next_bio,buf,size));*/
396 for (i = 0; i < size - 1; ++i) {
397 ret = ebcdic_read(bp, &buf[i], 1);
398 if (ret <= 0)
399 break;
400 else if (buf[i] == '\n') {
401 ++i;
402 break;
403 }
404 }
405 if (i < size)
406 buf[i] = '\0';
407 return (ret < 0 && i == 0) ? ret : i;
408 }
409
ebcdic_puts(BIO * bp,const char * str)410 static int ebcdic_puts(BIO *bp, const char *str)
411 {
412 if (BIO_next(bp) == NULL)
413 return 0;
414 return ebcdic_write(bp, str, strlen(str));
415 }
416 #endif
417
418 /* This is a context that we pass to callbacks */
419 typedef struct tlsextctx_st {
420 char *servername;
421 BIO *biodebug;
422 int extension_error;
423 } tlsextctx;
424
ssl_servername_cb(SSL * s,int * ad,void * arg)425 static int ssl_servername_cb(SSL *s, int *ad, void *arg)
426 {
427 tlsextctx *p = (tlsextctx *)arg;
428 const char *servername = SSL_get_servername(s, TLSEXT_NAMETYPE_host_name);
429
430 if (servername != NULL && p->biodebug != NULL) {
431 const char *cp = servername;
432 unsigned char uc;
433
434 BIO_printf(p->biodebug, "Hostname in TLS extension: \"");
435 while ((uc = *cp++) != 0)
436 BIO_printf(p->biodebug,
437 (((uc) & ~127) == 0) && isprint(uc) ? "%c" : "\\x%02x", uc);
438 BIO_printf(p->biodebug, "\"\n");
439 }
440
441 if (p->servername == NULL)
442 return SSL_TLSEXT_ERR_NOACK;
443
444 if (servername != NULL) {
445 if (OPENSSL_strcasecmp(servername, p->servername))
446 return p->extension_error;
447 if (ctx2 != NULL) {
448 BIO_printf(p->biodebug, "Switching server context.\n");
449 SSL_set_SSL_CTX(s, ctx2);
450 }
451 }
452 return SSL_TLSEXT_ERR_OK;
453 }
454
455 /* Structure passed to cert status callback */
456 typedef struct tlsextstatusctx_st {
457 int timeout;
458 /* File to load OCSP Response from (or NULL if no file) */
459 char *respin;
460 /* Default responder to use */
461 char *host, *path, *port;
462 char *proxy, *no_proxy;
463 int use_ssl;
464 int verbose;
465 } tlsextstatusctx;
466
467 static tlsextstatusctx tlscstatp = { -1 };
468
469 #ifndef OPENSSL_NO_OCSP
470
471 /*
472 * Helper function to get an OCSP_RESPONSE from a responder. This is a
473 * simplified version. It examines certificates each time and makes one OCSP
474 * responder query for each request. A full version would store details such as
475 * the OCSP certificate IDs and minimise the number of OCSP responses by caching
476 * them until they were considered "expired".
477 */
get_ocsp_resp_from_responder(SSL * s,tlsextstatusctx * srctx,OCSP_RESPONSE ** resp)478 static int get_ocsp_resp_from_responder(SSL *s, tlsextstatusctx *srctx,
479 OCSP_RESPONSE **resp)
480 {
481 char *host = NULL, *port = NULL, *path = NULL;
482 char *proxy = NULL, *no_proxy = NULL;
483 int use_ssl;
484 STACK_OF(OPENSSL_STRING) *aia = NULL;
485 X509 *x = NULL, *cert;
486 X509_NAME *iname;
487 STACK_OF(X509) *chain = NULL;
488 SSL_CTX *ssl_ctx;
489 X509_STORE_CTX *inctx = NULL;
490 X509_OBJECT *obj;
491 OCSP_REQUEST *req = NULL;
492 OCSP_CERTID *id = NULL;
493 STACK_OF(X509_EXTENSION) *exts;
494 int ret = SSL_TLSEXT_ERR_NOACK;
495 int i;
496
497 /* Build up OCSP query from server certificate */
498 x = SSL_get_certificate(s);
499 iname = X509_get_issuer_name(x);
500 aia = X509_get1_ocsp(x);
501 if (aia != NULL) {
502 if (!OSSL_HTTP_parse_url(sk_OPENSSL_STRING_value(aia, 0), &use_ssl,
503 NULL, &host, &port, NULL, &path, NULL, NULL)) {
504 BIO_puts(bio_err, "cert_status: can't parse AIA URL\n");
505 goto err;
506 }
507 if (srctx->verbose)
508 BIO_printf(bio_err, "cert_status: AIA URL: %s\n",
509 sk_OPENSSL_STRING_value(aia, 0));
510 } else {
511 if (srctx->host == NULL) {
512 BIO_puts(bio_err,
513 "cert_status: no AIA and no default responder URL\n");
514 goto done;
515 }
516 host = srctx->host;
517 path = srctx->path;
518 port = srctx->port;
519 use_ssl = srctx->use_ssl;
520 }
521 proxy = srctx->proxy;
522 no_proxy = srctx->no_proxy;
523
524 ssl_ctx = SSL_get_SSL_CTX(s);
525 if (!SSL_CTX_get0_chain_certs(ssl_ctx, &chain))
526 goto err;
527 for (i = 0; i < sk_X509_num(chain); i++) {
528 /* check the untrusted certificate chain (-cert_chain option) */
529 cert = sk_X509_value(chain, i);
530 if (X509_name_cmp(iname, X509_get_subject_name(cert)) == 0) {
531 /* the issuer certificate is found */
532 id = OCSP_cert_to_id(NULL, x, cert);
533 break;
534 }
535 }
536 if (id == NULL) {
537 inctx = X509_STORE_CTX_new();
538 if (inctx == NULL)
539 goto err;
540 if (!X509_STORE_CTX_init(inctx, SSL_CTX_get_cert_store(ssl_ctx),
541 NULL, NULL))
542 goto err;
543 obj = X509_STORE_CTX_get_obj_by_subject(inctx, X509_LU_X509, iname);
544 if (obj == NULL) {
545 BIO_puts(bio_err, "cert_status: Can't retrieve issuer certificate.\n");
546 goto done;
547 }
548 id = OCSP_cert_to_id(NULL, x, X509_OBJECT_get0_X509(obj));
549 X509_OBJECT_free(obj);
550 }
551 if (id == NULL)
552 goto err;
553 req = OCSP_REQUEST_new();
554 if (req == NULL)
555 goto err;
556 if (!OCSP_request_add0_id(req, id))
557 goto err;
558 id = NULL;
559 /* Add any extensions to the request */
560 SSL_get_tlsext_status_exts(s, &exts);
561 for (i = 0; i < sk_X509_EXTENSION_num(exts); i++) {
562 X509_EXTENSION *ext = sk_X509_EXTENSION_value(exts, i);
563 if (!OCSP_REQUEST_add_ext(req, ext, -1))
564 goto err;
565 }
566 *resp = process_responder(req, host, port, path, proxy, no_proxy,
567 use_ssl, NULL /* headers */, srctx->timeout);
568 if (*resp == NULL) {
569 BIO_puts(bio_err, "cert_status: error querying responder\n");
570 goto done;
571 }
572
573 ret = SSL_TLSEXT_ERR_OK;
574 goto done;
575
576 err:
577 ret = SSL_TLSEXT_ERR_ALERT_FATAL;
578 done:
579 /*
580 * If we parsed aia we need to free; otherwise they were copied and we
581 * don't
582 */
583 if (aia != NULL) {
584 OPENSSL_free(host);
585 OPENSSL_free(path);
586 OPENSSL_free(port);
587 X509_email_free(aia);
588 }
589 OCSP_CERTID_free(id);
590 OCSP_REQUEST_free(req);
591 X509_STORE_CTX_free(inctx);
592 return ret;
593 }
594
595 /*
596 * Certificate Status callback. This is called when a client includes a
597 * certificate status request extension. The response is either obtained from a
598 * file, or from an OCSP responder.
599 */
cert_status_cb(SSL * s,void * arg)600 static int cert_status_cb(SSL *s, void *arg)
601 {
602 tlsextstatusctx *srctx = arg;
603 OCSP_RESPONSE *resp = NULL;
604 unsigned char *rspder = NULL;
605 int rspderlen;
606 int ret = SSL_TLSEXT_ERR_ALERT_FATAL;
607
608 if (srctx->verbose)
609 BIO_puts(bio_err, "cert_status: callback called\n");
610
611 if (srctx->respin != NULL) {
612 BIO *derbio = bio_open_default(srctx->respin, 'r', FORMAT_ASN1);
613 if (derbio == NULL) {
614 BIO_puts(bio_err, "cert_status: Cannot open OCSP response file\n");
615 goto err;
616 }
617 resp = d2i_OCSP_RESPONSE_bio(derbio, NULL);
618 BIO_free(derbio);
619 if (resp == NULL) {
620 BIO_puts(bio_err, "cert_status: Error reading OCSP response\n");
621 goto err;
622 }
623 } else {
624 ret = get_ocsp_resp_from_responder(s, srctx, &resp);
625 if (ret != SSL_TLSEXT_ERR_OK)
626 goto err;
627 }
628
629 rspderlen = i2d_OCSP_RESPONSE(resp, &rspder);
630 if (rspderlen <= 0)
631 goto err;
632
633 SSL_set_tlsext_status_ocsp_resp(s, rspder, rspderlen);
634 if (srctx->verbose) {
635 BIO_puts(bio_err, "cert_status: ocsp response sent:\n");
636 OCSP_RESPONSE_print(bio_err, resp, 2);
637 }
638
639 ret = SSL_TLSEXT_ERR_OK;
640
641 err:
642 if (ret != SSL_TLSEXT_ERR_OK)
643 ERR_print_errors(bio_err);
644
645 OCSP_RESPONSE_free(resp);
646
647 return ret;
648 }
649 #endif
650
651 #ifndef OPENSSL_NO_NEXTPROTONEG
652 /* This is the context that we pass to next_proto_cb */
653 typedef struct tlsextnextprotoctx_st {
654 unsigned char *data;
655 size_t len;
656 } tlsextnextprotoctx;
657
next_proto_cb(SSL * s,const unsigned char ** data,unsigned int * len,void * arg)658 static int next_proto_cb(SSL *s, const unsigned char **data,
659 unsigned int *len, void *arg)
660 {
661 tlsextnextprotoctx *next_proto = arg;
662
663 *data = next_proto->data;
664 *len = next_proto->len;
665
666 return SSL_TLSEXT_ERR_OK;
667 }
668 #endif /* ndef OPENSSL_NO_NEXTPROTONEG */
669
670 /* This the context that we pass to alpn_cb */
671 typedef struct tlsextalpnctx_st {
672 unsigned char *data;
673 size_t len;
674 } tlsextalpnctx;
675
alpn_cb(SSL * s,const unsigned char ** out,unsigned char * outlen,const unsigned char * in,unsigned int inlen,void * arg)676 static int alpn_cb(SSL *s, const unsigned char **out, unsigned char *outlen,
677 const unsigned char *in, unsigned int inlen, void *arg)
678 {
679 tlsextalpnctx *alpn_ctx = arg;
680
681 if (!s_quiet) {
682 /* We can assume that |in| is syntactically valid. */
683 unsigned int i;
684 BIO_printf(bio_s_out, "ALPN protocols advertised by the client: ");
685 for (i = 0; i < inlen;) {
686 if (i)
687 BIO_write(bio_s_out, ", ", 2);
688 BIO_write(bio_s_out, &in[i + 1], in[i]);
689 i += in[i] + 1;
690 }
691 BIO_write(bio_s_out, "\n", 1);
692 }
693
694 if (SSL_select_next_proto((unsigned char **)out, outlen, alpn_ctx->data, alpn_ctx->len, in,
695 inlen)
696 != OPENSSL_NPN_NEGOTIATED) {
697 return SSL_TLSEXT_ERR_ALERT_FATAL;
698 }
699
700 if (!s_quiet) {
701 BIO_printf(bio_s_out, "ALPN protocols selected: ");
702 BIO_write(bio_s_out, *out, *outlen);
703 BIO_write(bio_s_out, "\n", 1);
704 }
705
706 return SSL_TLSEXT_ERR_OK;
707 }
708
not_resumable_sess_cb(SSL * s,int is_forward_secure)709 static int not_resumable_sess_cb(SSL *s, int is_forward_secure)
710 {
711 /* disable resumption for sessions with forward secure ciphers */
712 return is_forward_secure;
713 }
714
715 typedef enum OPTION_choice {
716 OPT_COMMON,
717 OPT_ENGINE,
718 OPT_4,
719 OPT_6,
720 OPT_ACCEPT,
721 OPT_PORT,
722 OPT_UNIX,
723 OPT_UNLINK,
724 OPT_NACCEPT,
725 OPT_VERIFY,
726 OPT_NAMEOPT,
727 OPT_UPPER_V_VERIFY,
728 OPT_CONTEXT,
729 OPT_CERT,
730 OPT_CRL,
731 OPT_CRL_DOWNLOAD,
732 OPT_SERVERINFO,
733 OPT_CERTFORM,
734 OPT_KEY,
735 OPT_KEYFORM,
736 OPT_PASS,
737 OPT_CERT_CHAIN,
738 OPT_DHPARAM,
739 OPT_DCERTFORM,
740 OPT_DCERT,
741 OPT_DKEYFORM,
742 OPT_DPASS,
743 OPT_DKEY,
744 OPT_DCERT_CHAIN,
745 OPT_NOCERT,
746 OPT_CAPATH,
747 OPT_NOCAPATH,
748 OPT_CHAINCAPATH,
749 OPT_VERIFYCAPATH,
750 OPT_NO_CACHE,
751 OPT_EXT_CACHE,
752 OPT_CRLFORM,
753 OPT_VERIFY_RET_ERROR,
754 OPT_VERIFY_QUIET,
755 OPT_BUILD_CHAIN,
756 OPT_CAFILE,
757 OPT_NOCAFILE,
758 OPT_CHAINCAFILE,
759 OPT_VERIFYCAFILE,
760 OPT_CASTORE,
761 OPT_NOCASTORE,
762 OPT_CHAINCASTORE,
763 OPT_VERIFYCASTORE,
764 OPT_NBIO,
765 OPT_NBIO_TEST,
766 OPT_IGN_EOF,
767 OPT_NO_IGN_EOF,
768 OPT_DEBUG,
769 OPT_TLSEXTDEBUG,
770 OPT_STATUS,
771 OPT_STATUS_VERBOSE,
772 OPT_STATUS_TIMEOUT,
773 OPT_PROXY,
774 OPT_NO_PROXY,
775 OPT_STATUS_URL,
776 OPT_STATUS_FILE,
777 OPT_MSG,
778 OPT_MSGFILE,
779 OPT_TRACE,
780 OPT_SECURITY_DEBUG,
781 OPT_SECURITY_DEBUG_VERBOSE,
782 OPT_STATE,
783 OPT_CRLF,
784 OPT_QUIET,
785 OPT_BRIEF,
786 OPT_NO_DHE,
787 OPT_NO_RESUME_EPHEMERAL,
788 OPT_PSK_IDENTITY,
789 OPT_PSK_HINT,
790 OPT_PSK,
791 OPT_PSK_SESS,
792 OPT_SRPVFILE,
793 OPT_SRPUSERSEED,
794 OPT_REV,
795 OPT_WWW,
796 OPT_UPPER_WWW,
797 OPT_HTTP,
798 OPT_ASYNC,
799 OPT_SSL_CONFIG,
800 OPT_MAX_SEND_FRAG,
801 OPT_SPLIT_SEND_FRAG,
802 OPT_MAX_PIPELINES,
803 OPT_READ_BUF,
804 OPT_SSL3,
805 OPT_TLS1_3,
806 OPT_TLS1_2,
807 OPT_TLS1_1,
808 OPT_TLS1,
809 OPT_DTLS,
810 OPT_DTLS1,
811 OPT_DTLS1_2,
812 OPT_SCTP,
813 OPT_TIMEOUT,
814 OPT_MTU,
815 OPT_LISTEN,
816 OPT_STATELESS,
817 OPT_ID_PREFIX,
818 OPT_SERVERNAME,
819 OPT_SERVERNAME_FATAL,
820 OPT_CERT2,
821 OPT_KEY2,
822 OPT_NEXTPROTONEG,
823 OPT_ALPN,
824 OPT_SENDFILE,
825 OPT_SRTP_PROFILES,
826 OPT_KEYMATEXPORT,
827 OPT_KEYMATEXPORTLEN,
828 OPT_KEYLOG_FILE,
829 OPT_MAX_EARLY,
830 OPT_RECV_MAX_EARLY,
831 OPT_EARLY_DATA,
832 OPT_S_NUM_TICKETS,
833 OPT_ANTI_REPLAY,
834 OPT_NO_ANTI_REPLAY,
835 OPT_SCTP_LABEL_BUG,
836 OPT_HTTP_SERVER_BINMODE,
837 OPT_NOCANAMES,
838 OPT_IGNORE_UNEXPECTED_EOF,
839 OPT_KTLS,
840 OPT_USE_ZC_SENDFILE,
841 OPT_TFO,
842 OPT_CERT_COMP,
843 OPT_ENABLE_SERVER_RPK,
844 OPT_ENABLE_CLIENT_RPK,
845 OPT_R_ENUM,
846 OPT_S_ENUM,
847 OPT_V_ENUM,
848 OPT_X_ENUM,
849 OPT_PROV_ENUM
850 } OPTION_CHOICE;
851
852 const OPTIONS s_server_options[] = {
853 OPT_SECTION("General"),
854 { "help", OPT_HELP, '-', "Display this summary" },
855 { "ssl_config", OPT_SSL_CONFIG, 's',
856 "Configure SSL_CTX using the given configuration value" },
857 #ifndef OPENSSL_NO_SSL_TRACE
858 { "trace", OPT_TRACE, '-', "trace protocol messages" },
859 #endif
860 #ifndef OPENSSL_NO_ENGINE
861 { "engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device" },
862 #endif
863
864 OPT_SECTION("Network"),
865 { "port", OPT_PORT, 'p',
866 "TCP/IP port to listen on for connections (default is " PORT ")" },
867 { "accept", OPT_ACCEPT, 's',
868 "TCP/IP optional host and port to listen on for connections (default is *:" PORT ")" },
869 #ifdef AF_UNIX
870 { "unix", OPT_UNIX, 's', "Unix domain socket to accept on" },
871 { "unlink", OPT_UNLINK, '-', "For -unix, unlink existing socket first" },
872 #endif
873 { "4", OPT_4, '-', "Use IPv4 only" },
874 { "6", OPT_6, '-', "Use IPv6 only" },
875 #if defined(TCP_FASTOPEN) && !defined(OPENSSL_NO_TFO)
876 { "tfo", OPT_TFO, '-', "Listen for TCP Fast Open connections" },
877 #endif
878
879 OPT_SECTION("Identity"),
880 { "context", OPT_CONTEXT, 's', "Set session ID context" },
881 { "CAfile", OPT_CAFILE, '<', "PEM format file of CA's" },
882 { "CApath", OPT_CAPATH, '/', "PEM format directory of CA's" },
883 { "CAstore", OPT_CASTORE, ':', "URI to store of CA's" },
884 { "no-CAfile", OPT_NOCAFILE, '-',
885 "Do not load the default certificates file" },
886 { "no-CApath", OPT_NOCAPATH, '-',
887 "Do not load certificates from the default certificates directory" },
888 { "no-CAstore", OPT_NOCASTORE, '-',
889 "Do not load certificates from the default certificates store URI" },
890 { "nocert", OPT_NOCERT, '-', "Don't use any certificates (Anon-DH)" },
891 { "verify", OPT_VERIFY, 'n', "Turn on peer certificate verification" },
892 { "Verify", OPT_UPPER_V_VERIFY, 'n',
893 "Turn on peer certificate verification, must have a cert" },
894 { "nameopt", OPT_NAMEOPT, 's', "Certificate subject/issuer name printing options" },
895 { "cert", OPT_CERT, '<', "Server certificate file to use; default " TEST_CERT },
896 { "cert2", OPT_CERT2, '<',
897 "Certificate file to use for servername; default " TEST_CERT2 },
898 { "certform", OPT_CERTFORM, 'F',
899 "Server certificate file format (PEM/DER/P12); has no effect" },
900 { "cert_chain", OPT_CERT_CHAIN, '<',
901 "Server certificate chain file in PEM format" },
902 { "build_chain", OPT_BUILD_CHAIN, '-', "Build server certificate chain" },
903 { "serverinfo", OPT_SERVERINFO, 's',
904 "PEM serverinfo file for certificate" },
905 { "key", OPT_KEY, 's',
906 "Private key file to use; default is -cert file or else" TEST_CERT },
907 { "key2", OPT_KEY2, '<',
908 "-Private Key file to use for servername if not in -cert2" },
909 { "keyform", OPT_KEYFORM, 'f', "Key format (ENGINE, other values ignored)" },
910 { "pass", OPT_PASS, 's', "Private key and cert file pass phrase source" },
911 { "dcert", OPT_DCERT, '<',
912 "Second server certificate file to use (usually for DSA)" },
913 { "dcertform", OPT_DCERTFORM, 'F',
914 "Second server certificate file format (PEM/DER/P12); has no effect" },
915 { "dcert_chain", OPT_DCERT_CHAIN, '<',
916 "second server certificate chain file in PEM format" },
917 { "dkey", OPT_DKEY, '<',
918 "Second private key file to use (usually for DSA)" },
919 { "dkeyform", OPT_DKEYFORM, 'f',
920 "Second key file format (ENGINE, other values ignored)" },
921 { "dpass", OPT_DPASS, 's',
922 "Second private key and cert file pass phrase source" },
923 { "dhparam", OPT_DHPARAM, '<', "DH parameters file to use" },
924 { "servername", OPT_SERVERNAME, 's',
925 "Servername for HostName TLS extension" },
926 { "servername_fatal", OPT_SERVERNAME_FATAL, '-',
927 "On servername mismatch send fatal alert (default warning alert)" },
928 { "nbio_test", OPT_NBIO_TEST, '-', "Test with the non-blocking test bio" },
929 { "crlf", OPT_CRLF, '-', "Convert LF from terminal into CRLF" },
930 { "quiet", OPT_QUIET, '-', "No server output" },
931 { "no_resume_ephemeral", OPT_NO_RESUME_EPHEMERAL, '-',
932 "Disable caching and tickets if ephemeral (EC)DH is used" },
933 { "www", OPT_WWW, '-', "Respond to a 'GET /' with a status page" },
934 { "WWW", OPT_UPPER_WWW, '-', "Respond to a 'GET with the file ./path" },
935 { "ignore_unexpected_eof", OPT_IGNORE_UNEXPECTED_EOF, '-',
936 "Do not treat lack of close_notify from a peer as an error" },
937 { "tlsextdebug", OPT_TLSEXTDEBUG, '-',
938 "Hex dump of all TLS extensions received" },
939 { "HTTP", OPT_HTTP, '-', "Like -WWW but ./path includes HTTP headers" },
940 { "id_prefix", OPT_ID_PREFIX, 's',
941 "Generate SSL/TLS session IDs prefixed by arg" },
942 { "keymatexport", OPT_KEYMATEXPORT, 's',
943 "Export keying material using label" },
944 { "keymatexportlen", OPT_KEYMATEXPORTLEN, 'p',
945 "Export len bytes of keying material; default 20" },
946 { "CRL", OPT_CRL, '<', "CRL file to use" },
947 { "CRLform", OPT_CRLFORM, 'F', "CRL file format (PEM or DER); default PEM" },
948 { "crl_download", OPT_CRL_DOWNLOAD, '-',
949 "Download CRLs from distribution points in certificate CDP entries" },
950 { "chainCAfile", OPT_CHAINCAFILE, '<',
951 "CA file for certificate chain (PEM format)" },
952 { "chainCApath", OPT_CHAINCAPATH, '/',
953 "use dir as certificate store path to build CA certificate chain" },
954 { "chainCAstore", OPT_CHAINCASTORE, ':',
955 "use URI as certificate store to build CA certificate chain" },
956 { "verifyCAfile", OPT_VERIFYCAFILE, '<',
957 "CA file for certificate verification (PEM format)" },
958 { "verifyCApath", OPT_VERIFYCAPATH, '/',
959 "use dir as certificate store path to verify CA certificate" },
960 { "verifyCAstore", OPT_VERIFYCASTORE, ':',
961 "use URI as certificate store to verify CA certificate" },
962 { "no_cache", OPT_NO_CACHE, '-', "Disable session cache" },
963 { "ext_cache", OPT_EXT_CACHE, '-',
964 "Disable internal cache, set up and use external cache" },
965 { "verify_return_error", OPT_VERIFY_RET_ERROR, '-',
966 "Close connection on verification error" },
967 { "verify_quiet", OPT_VERIFY_QUIET, '-',
968 "No verify output except verify errors" },
969 { "ign_eof", OPT_IGN_EOF, '-', "Ignore input EOF (default when -quiet)" },
970 { "no_ign_eof", OPT_NO_IGN_EOF, '-', "Do not ignore input EOF" },
971 #ifndef OPENSSL_NO_COMP_ALG
972 { "cert_comp", OPT_CERT_COMP, '-', "Pre-compress server certificates" },
973 #endif
974
975 #ifndef OPENSSL_NO_OCSP
976 OPT_SECTION("OCSP"),
977 { "status", OPT_STATUS, '-', "Request certificate status from server" },
978 { "status_verbose", OPT_STATUS_VERBOSE, '-',
979 "Print more output in certificate status callback" },
980 { "status_timeout", OPT_STATUS_TIMEOUT, 'n',
981 "Status request responder timeout" },
982 { "status_url", OPT_STATUS_URL, 's', "Status request fallback URL" },
983 { "proxy", OPT_PROXY, 's',
984 "[http[s]://]host[:port][/path] of HTTP(S) proxy to use; path is ignored" },
985 { "no_proxy", OPT_NO_PROXY, 's',
986 "List of addresses of servers not to use HTTP(S) proxy for" },
987 { OPT_MORE_STR, 0, 0,
988 "Default from environment variable 'no_proxy', else 'NO_PROXY', else none" },
989 { "status_file", OPT_STATUS_FILE, '<',
990 "File containing DER encoded OCSP Response" },
991 #endif
992
993 OPT_SECTION("Debug"),
994 { "security_debug", OPT_SECURITY_DEBUG, '-',
995 "Print output from SSL/TLS security framework" },
996 { "security_debug_verbose", OPT_SECURITY_DEBUG_VERBOSE, '-',
997 "Print more output from SSL/TLS security framework" },
998 { "brief", OPT_BRIEF, '-',
999 "Restrict output to brief summary of connection parameters" },
1000 { "rev", OPT_REV, '-',
1001 "act as an echo server that sends back received text reversed" },
1002 { "debug", OPT_DEBUG, '-', "Print more output" },
1003 { "msg", OPT_MSG, '-', "Show protocol messages" },
1004 { "msgfile", OPT_MSGFILE, '>',
1005 "File to send output of -msg or -trace, instead of stdout" },
1006 { "state", OPT_STATE, '-', "Print the SSL states" },
1007 { "async", OPT_ASYNC, '-', "Operate in asynchronous mode" },
1008 { "max_pipelines", OPT_MAX_PIPELINES, 'p',
1009 "Maximum number of encrypt/decrypt pipelines to be used" },
1010 { "naccept", OPT_NACCEPT, 'p', "Terminate after #num connections" },
1011 { "keylogfile", OPT_KEYLOG_FILE, '>', "Write TLS secrets to file" },
1012
1013 OPT_SECTION("Network"),
1014 { "nbio", OPT_NBIO, '-', "Use non-blocking IO" },
1015 { "timeout", OPT_TIMEOUT, '-', "Enable timeouts" },
1016 { "mtu", OPT_MTU, 'p', "Set link-layer MTU" },
1017 { "read_buf", OPT_READ_BUF, 'p',
1018 "Default read buffer size to be used for connections" },
1019 { "split_send_frag", OPT_SPLIT_SEND_FRAG, 'p',
1020 "Size used to split data for encrypt pipelines" },
1021 { "max_send_frag", OPT_MAX_SEND_FRAG, 'p', "Maximum Size of send frames " },
1022
1023 OPT_SECTION("Server identity"),
1024 { "psk_identity", OPT_PSK_IDENTITY, 's', "PSK identity to expect" },
1025 #ifndef OPENSSL_NO_PSK
1026 { "psk_hint", OPT_PSK_HINT, 's', "PSK identity hint to use" },
1027 #endif
1028 { "psk", OPT_PSK, 's', "PSK in hex (without 0x)" },
1029 { "psk_session", OPT_PSK_SESS, '<', "File to read PSK SSL session from" },
1030 #ifndef OPENSSL_NO_SRP
1031 { "srpvfile", OPT_SRPVFILE, '<', "(deprecated) The verifier file for SRP" },
1032 { "srpuserseed", OPT_SRPUSERSEED, 's',
1033 "(deprecated) A seed string for a default user salt" },
1034 #endif
1035
1036 OPT_SECTION("Protocol and version"),
1037 { "max_early_data", OPT_MAX_EARLY, 'n',
1038 "The maximum number of bytes of early data as advertised in tickets" },
1039 { "recv_max_early_data", OPT_RECV_MAX_EARLY, 'n',
1040 "The maximum number of bytes of early data (hard limit)" },
1041 { "early_data", OPT_EARLY_DATA, '-', "Attempt to read early data" },
1042 { "num_tickets", OPT_S_NUM_TICKETS, 'n',
1043 "The number of TLSv1.3 session tickets that a server will automatically issue" },
1044 { "anti_replay", OPT_ANTI_REPLAY, '-', "Switch on anti-replay protection (default)" },
1045 { "no_anti_replay", OPT_NO_ANTI_REPLAY, '-', "Switch off anti-replay protection" },
1046 { "http_server_binmode", OPT_HTTP_SERVER_BINMODE, '-', "opening files in binary mode when acting as http server (-WWW and -HTTP)" },
1047 { "no_ca_names", OPT_NOCANAMES, '-',
1048 "Disable TLS Extension CA Names" },
1049 { "stateless", OPT_STATELESS, '-', "Require TLSv1.3 cookies" },
1050 #ifndef OPENSSL_NO_SSL3
1051 { "ssl3", OPT_SSL3, '-', "Just talk SSLv3" },
1052 #endif
1053 #ifndef OPENSSL_NO_TLS1
1054 { "tls1", OPT_TLS1, '-', "Just talk TLSv1" },
1055 #endif
1056 #ifndef OPENSSL_NO_TLS1_1
1057 { "tls1_1", OPT_TLS1_1, '-', "Just talk TLSv1.1" },
1058 #endif
1059 #ifndef OPENSSL_NO_TLS1_2
1060 { "tls1_2", OPT_TLS1_2, '-', "just talk TLSv1.2" },
1061 #endif
1062 #ifndef OPENSSL_NO_TLS1_3
1063 { "tls1_3", OPT_TLS1_3, '-', "just talk TLSv1.3" },
1064 #endif
1065 #ifndef OPENSSL_NO_DTLS
1066 { "dtls", OPT_DTLS, '-', "Use any DTLS version" },
1067 { "listen", OPT_LISTEN, '-',
1068 "Listen for a DTLS ClientHello with a cookie and then connect" },
1069 #endif
1070 #ifndef OPENSSL_NO_DTLS1
1071 { "dtls1", OPT_DTLS1, '-', "Just talk DTLSv1" },
1072 #endif
1073 #ifndef OPENSSL_NO_DTLS1_2
1074 { "dtls1_2", OPT_DTLS1_2, '-', "Just talk DTLSv1.2" },
1075 #endif
1076 #ifndef OPENSSL_NO_SCTP
1077 { "sctp", OPT_SCTP, '-', "Use SCTP" },
1078 { "sctp_label_bug", OPT_SCTP_LABEL_BUG, '-', "Enable SCTP label length bug" },
1079 #endif
1080 #ifndef OPENSSL_NO_SRTP
1081 { "use_srtp", OPT_SRTP_PROFILES, 's',
1082 "Offer SRTP key management with a colon-separated profile list" },
1083 #endif
1084 { "no_dhe", OPT_NO_DHE, '-', "Disable ephemeral DH" },
1085 #ifndef OPENSSL_NO_NEXTPROTONEG
1086 { "nextprotoneg", OPT_NEXTPROTONEG, 's',
1087 "Set the advertised protocols for the NPN extension (comma-separated list)" },
1088 #endif
1089 { "alpn", OPT_ALPN, 's',
1090 "Set the advertised protocols for the ALPN extension (comma-separated list)" },
1091 #ifndef OPENSSL_NO_KTLS
1092 { "ktls", OPT_KTLS, '-', "Enable Kernel TLS for sending and receiving" },
1093 { "sendfile", OPT_SENDFILE, '-', "Use sendfile to response file with -WWW" },
1094 { "zerocopy_sendfile", OPT_USE_ZC_SENDFILE, '-', "Use zerocopy mode of KTLS sendfile" },
1095 #endif
1096 { "enable_server_rpk", OPT_ENABLE_SERVER_RPK, '-', "Enable raw public keys (RFC7250) from the server" },
1097 { "enable_client_rpk", OPT_ENABLE_CLIENT_RPK, '-', "Enable raw public keys (RFC7250) from the client" },
1098 OPT_R_OPTIONS,
1099 OPT_S_OPTIONS,
1100 OPT_V_OPTIONS,
1101 OPT_X_OPTIONS,
1102 OPT_PROV_OPTIONS,
1103 { NULL }
1104 };
1105
1106 #define IS_PROT_FLAG(o) \
1107 (o == OPT_SSL3 || o == OPT_TLS1 || o == OPT_TLS1_1 || o == OPT_TLS1_2 \
1108 || o == OPT_TLS1_3 || o == OPT_DTLS || o == OPT_DTLS1 || o == OPT_DTLS1_2)
1109
s_server_main(int argc,char * argv[])1110 int s_server_main(int argc, char *argv[])
1111 {
1112 ENGINE *engine = NULL;
1113 EVP_PKEY *s_key = NULL, *s_dkey = NULL;
1114 SSL_CONF_CTX *cctx = NULL;
1115 const SSL_METHOD *meth = TLS_server_method();
1116 SSL_EXCERT *exc = NULL;
1117 STACK_OF(OPENSSL_STRING) *ssl_args = NULL;
1118 STACK_OF(X509) *s_chain = NULL, *s_dchain = NULL;
1119 STACK_OF(X509_CRL) *crls = NULL;
1120 X509 *s_cert = NULL, *s_dcert = NULL;
1121 X509_VERIFY_PARAM *vpm = NULL;
1122 const char *CApath = NULL, *CAfile = NULL, *CAstore = NULL;
1123 const char *chCApath = NULL, *chCAfile = NULL, *chCAstore = NULL;
1124 char *dpassarg = NULL, *dpass = NULL;
1125 char *passarg = NULL, *pass = NULL;
1126 char *vfyCApath = NULL, *vfyCAfile = NULL, *vfyCAstore = NULL;
1127 char *crl_file = NULL, *prog;
1128 #ifdef AF_UNIX
1129 int unlink_unix_path = 0;
1130 #endif
1131 do_server_cb server_cb;
1132 int vpmtouched = 0, build_chain = 0, no_cache = 0, ext_cache = 0;
1133 char *dhfile = NULL;
1134 int no_dhe = 0;
1135 int nocert = 0, ret = 1;
1136 int noCApath = 0, noCAfile = 0, noCAstore = 0;
1137 int s_cert_format = FORMAT_UNDEF, s_key_format = FORMAT_UNDEF;
1138 int s_dcert_format = FORMAT_UNDEF, s_dkey_format = FORMAT_UNDEF;
1139 int rev = 0, naccept = -1, sdebug = 0;
1140 int socket_family = AF_UNSPEC, socket_type = SOCK_STREAM, protocol = 0;
1141 int state = 0, crl_format = FORMAT_UNDEF, crl_download = 0;
1142 char *host = NULL;
1143 char *port = NULL;
1144 unsigned char *context = NULL;
1145 OPTION_CHOICE o;
1146 EVP_PKEY *s_key2 = NULL;
1147 X509 *s_cert2 = NULL;
1148 tlsextctx tlsextcbp = { NULL, NULL, SSL_TLSEXT_ERR_ALERT_WARNING };
1149 const char *ssl_config = NULL;
1150 int read_buf_len = 0;
1151 #ifndef OPENSSL_NO_NEXTPROTONEG
1152 const char *next_proto_neg_in = NULL;
1153 tlsextnextprotoctx next_proto = { NULL, 0 };
1154 #endif
1155 const char *alpn_in = NULL;
1156 tlsextalpnctx alpn_ctx = { NULL, 0 };
1157 #ifndef OPENSSL_NO_PSK
1158 /* by default do not send a PSK identity hint */
1159 char *psk_identity_hint = NULL;
1160 #endif
1161 char *p;
1162 #ifndef OPENSSL_NO_SRP
1163 char *srpuserseed = NULL;
1164 char *srp_verifier_file = NULL;
1165 #endif
1166 #ifndef OPENSSL_NO_SRTP
1167 char *srtp_profiles = NULL;
1168 #endif
1169 int min_version = 0, max_version = 0, prot_opt = 0, no_prot_opt = 0;
1170 int s_server_verify = SSL_VERIFY_NONE;
1171 int s_server_session_id_context = 1; /* anything will do */
1172 const char *s_cert_file = TEST_CERT, *s_key_file = NULL, *s_chain_file = NULL;
1173 const char *s_cert_file2 = TEST_CERT2, *s_key_file2 = NULL;
1174 char *s_dcert_file = NULL, *s_dkey_file = NULL, *s_dchain_file = NULL;
1175 #ifndef OPENSSL_NO_OCSP
1176 int s_tlsextstatus = 0;
1177 #endif
1178 int no_resume_ephemeral = 0;
1179 unsigned int max_send_fragment = 0;
1180 unsigned int split_send_fragment = 0, max_pipelines = 0;
1181 const char *s_serverinfo_file = NULL;
1182 const char *keylog_file = NULL;
1183 int max_early_data = -1, recv_max_early_data = -1;
1184 char *psksessf = NULL;
1185 int no_ca_names = 0;
1186 #ifndef OPENSSL_NO_SCTP
1187 int sctp_label_bug = 0;
1188 #endif
1189 int ignore_unexpected_eof = 0;
1190 #ifndef OPENSSL_NO_KTLS
1191 int enable_ktls = 0;
1192 #endif
1193 int tfo = 0;
1194 int cert_comp = 0;
1195 int enable_server_rpk = 0;
1196
1197 /* Init of few remaining global variables */
1198 local_argc = argc;
1199 local_argv = argv;
1200
1201 ctx = ctx2 = NULL;
1202 s_nbio = s_nbio_test = 0;
1203 www = 0;
1204 bio_s_out = NULL;
1205 s_debug = 0;
1206 s_msg = 0;
1207 s_quiet = 0;
1208 s_brief = 0;
1209 async = 0;
1210 use_sendfile = 0;
1211 use_zc_sendfile = 0;
1212
1213 port = OPENSSL_strdup(PORT);
1214 cctx = SSL_CONF_CTX_new();
1215 vpm = X509_VERIFY_PARAM_new();
1216 if (port == NULL || cctx == NULL || vpm == NULL)
1217 goto end;
1218 SSL_CONF_CTX_set_flags(cctx,
1219 SSL_CONF_FLAG_SERVER | SSL_CONF_FLAG_CMDLINE);
1220
1221 prog = opt_init(argc, argv, s_server_options);
1222 while ((o = opt_next()) != OPT_EOF) {
1223 if (IS_PROT_FLAG(o) && ++prot_opt > 1) {
1224 BIO_printf(bio_err, "Cannot supply multiple protocol flags\n");
1225 goto end;
1226 }
1227 if (IS_NO_PROT_FLAG(o))
1228 no_prot_opt++;
1229 if (prot_opt == 1 && no_prot_opt) {
1230 BIO_printf(bio_err,
1231 "Cannot supply both a protocol flag and '-no_<prot>'\n");
1232 goto end;
1233 }
1234 switch (o) {
1235 case OPT_EOF:
1236 case OPT_ERR:
1237 opthelp:
1238 BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
1239 goto end;
1240 case OPT_HELP:
1241 opt_help(s_server_options);
1242 ret = 0;
1243 goto end;
1244
1245 case OPT_4:
1246 #ifdef AF_UNIX
1247 if (socket_family == AF_UNIX) {
1248 OPENSSL_free(host);
1249 host = NULL;
1250 OPENSSL_free(port);
1251 port = NULL;
1252 }
1253 #endif
1254 socket_family = AF_INET;
1255 break;
1256 case OPT_6:
1257 if (1) {
1258 #ifdef AF_INET6
1259 #ifdef AF_UNIX
1260 if (socket_family == AF_UNIX) {
1261 OPENSSL_free(host);
1262 host = NULL;
1263 OPENSSL_free(port);
1264 port = NULL;
1265 }
1266 #endif
1267 socket_family = AF_INET6;
1268 } else {
1269 #endif
1270 BIO_printf(bio_err, "%s: IPv6 domain sockets unsupported\n", prog);
1271 goto end;
1272 }
1273 break;
1274 case OPT_PORT:
1275 #ifdef AF_UNIX
1276 if (socket_family == AF_UNIX) {
1277 socket_family = AF_UNSPEC;
1278 }
1279 #endif
1280 OPENSSL_free(port);
1281 port = NULL;
1282 OPENSSL_free(host);
1283 host = NULL;
1284 if (BIO_parse_hostserv(opt_arg(), NULL, &port, BIO_PARSE_PRIO_SERV) < 1) {
1285 BIO_printf(bio_err,
1286 "%s: -port argument malformed or ambiguous\n",
1287 prog);
1288 goto end;
1289 }
1290 break;
1291 case OPT_ACCEPT:
1292 #ifdef AF_UNIX
1293 if (socket_family == AF_UNIX) {
1294 socket_family = AF_UNSPEC;
1295 }
1296 #endif
1297 OPENSSL_free(port);
1298 port = NULL;
1299 OPENSSL_free(host);
1300 host = NULL;
1301 if (BIO_parse_hostserv(opt_arg(), &host, &port, BIO_PARSE_PRIO_SERV) < 1) {
1302 BIO_printf(bio_err,
1303 "%s: -accept argument malformed or ambiguous\n",
1304 prog);
1305 goto end;
1306 }
1307 break;
1308 #ifdef AF_UNIX
1309 case OPT_UNIX:
1310 socket_family = AF_UNIX;
1311 OPENSSL_free(host);
1312 host = OPENSSL_strdup(opt_arg());
1313 if (host == NULL)
1314 goto end;
1315 OPENSSL_free(port);
1316 port = NULL;
1317 break;
1318 case OPT_UNLINK:
1319 unlink_unix_path = 1;
1320 break;
1321 #endif
1322 case OPT_NACCEPT:
1323 naccept = atol(opt_arg());
1324 break;
1325 case OPT_VERIFY:
1326 s_server_verify = SSL_VERIFY_PEER | SSL_VERIFY_CLIENT_ONCE;
1327 verify_args.depth = atoi(opt_arg());
1328 if (!s_quiet)
1329 BIO_printf(bio_err, "verify depth is %d\n", verify_args.depth);
1330 break;
1331 case OPT_UPPER_V_VERIFY:
1332 s_server_verify = SSL_VERIFY_PEER | SSL_VERIFY_FAIL_IF_NO_PEER_CERT | SSL_VERIFY_CLIENT_ONCE;
1333 verify_args.depth = atoi(opt_arg());
1334 if (!s_quiet)
1335 BIO_printf(bio_err,
1336 "verify depth is %d, must return a certificate\n",
1337 verify_args.depth);
1338 break;
1339 case OPT_CONTEXT:
1340 context = (unsigned char *)opt_arg();
1341 break;
1342 case OPT_CERT:
1343 s_cert_file = opt_arg();
1344 break;
1345 case OPT_NAMEOPT:
1346 if (!set_nameopt(opt_arg()))
1347 goto end;
1348 break;
1349 case OPT_CRL:
1350 crl_file = opt_arg();
1351 break;
1352 case OPT_CRL_DOWNLOAD:
1353 crl_download = 1;
1354 break;
1355 case OPT_SERVERINFO:
1356 s_serverinfo_file = opt_arg();
1357 break;
1358 case OPT_CERTFORM:
1359 if (!opt_format(opt_arg(), OPT_FMT_ANY, &s_cert_format))
1360 goto opthelp;
1361 break;
1362 case OPT_KEY:
1363 s_key_file = opt_arg();
1364 break;
1365 case OPT_KEYFORM:
1366 if (!opt_format(opt_arg(), OPT_FMT_ANY, &s_key_format))
1367 goto opthelp;
1368 break;
1369 case OPT_PASS:
1370 passarg = opt_arg();
1371 break;
1372 case OPT_CERT_CHAIN:
1373 s_chain_file = opt_arg();
1374 break;
1375 case OPT_DHPARAM:
1376 dhfile = opt_arg();
1377 break;
1378 case OPT_DCERTFORM:
1379 if (!opt_format(opt_arg(), OPT_FMT_ANY, &s_dcert_format))
1380 goto opthelp;
1381 break;
1382 case OPT_DCERT:
1383 s_dcert_file = opt_arg();
1384 break;
1385 case OPT_DKEYFORM:
1386 if (!opt_format(opt_arg(), OPT_FMT_ANY, &s_dkey_format))
1387 goto opthelp;
1388 break;
1389 case OPT_DPASS:
1390 dpassarg = opt_arg();
1391 break;
1392 case OPT_DKEY:
1393 s_dkey_file = opt_arg();
1394 break;
1395 case OPT_DCERT_CHAIN:
1396 s_dchain_file = opt_arg();
1397 break;
1398 case OPT_NOCERT:
1399 nocert = 1;
1400 break;
1401 case OPT_CAPATH:
1402 CApath = opt_arg();
1403 break;
1404 case OPT_NOCAPATH:
1405 noCApath = 1;
1406 break;
1407 case OPT_CHAINCAPATH:
1408 chCApath = opt_arg();
1409 break;
1410 case OPT_VERIFYCAPATH:
1411 vfyCApath = opt_arg();
1412 break;
1413 case OPT_CASTORE:
1414 CAstore = opt_arg();
1415 break;
1416 case OPT_NOCASTORE:
1417 noCAstore = 1;
1418 break;
1419 case OPT_CHAINCASTORE:
1420 chCAstore = opt_arg();
1421 break;
1422 case OPT_VERIFYCASTORE:
1423 vfyCAstore = opt_arg();
1424 break;
1425 case OPT_NO_CACHE:
1426 no_cache = 1;
1427 break;
1428 case OPT_EXT_CACHE:
1429 ext_cache = 1;
1430 break;
1431 case OPT_CRLFORM:
1432 if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &crl_format))
1433 goto opthelp;
1434 break;
1435 case OPT_S_CASES:
1436 case OPT_S_NUM_TICKETS:
1437 case OPT_ANTI_REPLAY:
1438 case OPT_NO_ANTI_REPLAY:
1439 if (ssl_args == NULL)
1440 ssl_args = sk_OPENSSL_STRING_new_null();
1441 if (ssl_args == NULL
1442 || !sk_OPENSSL_STRING_push(ssl_args, opt_flag())
1443 || !sk_OPENSSL_STRING_push(ssl_args, opt_arg())) {
1444 BIO_printf(bio_err, "%s: Memory allocation failure\n", prog);
1445 goto end;
1446 }
1447 break;
1448 case OPT_V_CASES:
1449 if (!opt_verify(o, vpm))
1450 goto end;
1451 vpmtouched++;
1452 break;
1453 case OPT_X_CASES:
1454 if (!args_excert(o, &exc))
1455 goto end;
1456 break;
1457 case OPT_VERIFY_RET_ERROR:
1458 verify_args.return_error = 1;
1459 break;
1460 case OPT_VERIFY_QUIET:
1461 verify_args.quiet = 1;
1462 break;
1463 case OPT_BUILD_CHAIN:
1464 build_chain = 1;
1465 break;
1466 case OPT_CAFILE:
1467 CAfile = opt_arg();
1468 break;
1469 case OPT_NOCAFILE:
1470 noCAfile = 1;
1471 break;
1472 case OPT_CHAINCAFILE:
1473 chCAfile = opt_arg();
1474 break;
1475 case OPT_VERIFYCAFILE:
1476 vfyCAfile = opt_arg();
1477 break;
1478 case OPT_NBIO:
1479 s_nbio = 1;
1480 break;
1481 case OPT_NBIO_TEST:
1482 s_nbio = s_nbio_test = 1;
1483 break;
1484 case OPT_IGN_EOF:
1485 s_ign_eof = 1;
1486 break;
1487 case OPT_NO_IGN_EOF:
1488 s_ign_eof = 0;
1489 break;
1490 case OPT_DEBUG:
1491 s_debug = 1;
1492 break;
1493 case OPT_TLSEXTDEBUG:
1494 s_tlsextdebug = 1;
1495 break;
1496 case OPT_STATUS:
1497 #ifndef OPENSSL_NO_OCSP
1498 s_tlsextstatus = 1;
1499 #endif
1500 break;
1501 case OPT_STATUS_VERBOSE:
1502 #ifndef OPENSSL_NO_OCSP
1503 s_tlsextstatus = tlscstatp.verbose = 1;
1504 #endif
1505 break;
1506 case OPT_STATUS_TIMEOUT:
1507 #ifndef OPENSSL_NO_OCSP
1508 s_tlsextstatus = 1;
1509 tlscstatp.timeout = atoi(opt_arg());
1510 #endif
1511 break;
1512 case OPT_PROXY:
1513 #ifndef OPENSSL_NO_OCSP
1514 tlscstatp.proxy = opt_arg();
1515 #endif
1516 break;
1517 case OPT_NO_PROXY:
1518 #ifndef OPENSSL_NO_OCSP
1519 tlscstatp.no_proxy = opt_arg();
1520 #endif
1521 break;
1522 case OPT_STATUS_URL:
1523 #ifndef OPENSSL_NO_OCSP
1524 s_tlsextstatus = 1;
1525 if (!OSSL_HTTP_parse_url(opt_arg(), &tlscstatp.use_ssl, NULL,
1526 &tlscstatp.host, &tlscstatp.port, NULL,
1527 &tlscstatp.path, NULL, NULL)) {
1528 BIO_printf(bio_err, "Error parsing -status_url argument\n");
1529 goto end;
1530 }
1531 #endif
1532 break;
1533 case OPT_STATUS_FILE:
1534 #ifndef OPENSSL_NO_OCSP
1535 s_tlsextstatus = 1;
1536 tlscstatp.respin = opt_arg();
1537 #endif
1538 break;
1539 case OPT_MSG:
1540 s_msg = 1;
1541 break;
1542 case OPT_MSGFILE:
1543 bio_s_msg = BIO_new_file(opt_arg(), "w");
1544 if (bio_s_msg == NULL) {
1545 BIO_printf(bio_err, "Error writing file %s\n", opt_arg());
1546 goto end;
1547 }
1548 break;
1549 case OPT_TRACE:
1550 #ifndef OPENSSL_NO_SSL_TRACE
1551 s_msg = 2;
1552 #endif
1553 break;
1554 case OPT_SECURITY_DEBUG:
1555 sdebug = 1;
1556 break;
1557 case OPT_SECURITY_DEBUG_VERBOSE:
1558 sdebug = 2;
1559 break;
1560 case OPT_STATE:
1561 state = 1;
1562 break;
1563 case OPT_CRLF:
1564 s_crlf = 1;
1565 break;
1566 case OPT_QUIET:
1567 s_quiet = 1;
1568 break;
1569 case OPT_BRIEF:
1570 s_quiet = s_brief = verify_args.quiet = 1;
1571 break;
1572 case OPT_NO_DHE:
1573 no_dhe = 1;
1574 break;
1575 case OPT_NO_RESUME_EPHEMERAL:
1576 no_resume_ephemeral = 1;
1577 break;
1578 case OPT_PSK_IDENTITY:
1579 psk_identity = opt_arg();
1580 break;
1581 case OPT_PSK_HINT:
1582 #ifndef OPENSSL_NO_PSK
1583 psk_identity_hint = opt_arg();
1584 #endif
1585 break;
1586 case OPT_PSK:
1587 for (p = psk_key = opt_arg(); *p; p++) {
1588 if (isxdigit(_UC(*p)))
1589 continue;
1590 BIO_printf(bio_err, "Not a hex number '%s'\n", psk_key);
1591 goto end;
1592 }
1593 break;
1594 case OPT_PSK_SESS:
1595 psksessf = opt_arg();
1596 break;
1597 case OPT_SRPVFILE:
1598 #ifndef OPENSSL_NO_SRP
1599 srp_verifier_file = opt_arg();
1600 if (min_version < TLS1_VERSION)
1601 min_version = TLS1_VERSION;
1602 #endif
1603 break;
1604 case OPT_SRPUSERSEED:
1605 #ifndef OPENSSL_NO_SRP
1606 srpuserseed = opt_arg();
1607 if (min_version < TLS1_VERSION)
1608 min_version = TLS1_VERSION;
1609 #endif
1610 break;
1611 case OPT_REV:
1612 rev = 1;
1613 break;
1614 case OPT_WWW:
1615 www = 1;
1616 break;
1617 case OPT_UPPER_WWW:
1618 www = 2;
1619 break;
1620 case OPT_HTTP:
1621 www = 3;
1622 break;
1623 case OPT_SSL_CONFIG:
1624 ssl_config = opt_arg();
1625 break;
1626 case OPT_SSL3:
1627 min_version = SSL3_VERSION;
1628 max_version = SSL3_VERSION;
1629 break;
1630 case OPT_TLS1_3:
1631 min_version = TLS1_3_VERSION;
1632 max_version = TLS1_3_VERSION;
1633 break;
1634 case OPT_TLS1_2:
1635 min_version = TLS1_2_VERSION;
1636 max_version = TLS1_2_VERSION;
1637 break;
1638 case OPT_TLS1_1:
1639 min_version = TLS1_1_VERSION;
1640 max_version = TLS1_1_VERSION;
1641 break;
1642 case OPT_TLS1:
1643 min_version = TLS1_VERSION;
1644 max_version = TLS1_VERSION;
1645 break;
1646 case OPT_DTLS:
1647 #ifndef OPENSSL_NO_DTLS
1648 meth = DTLS_server_method();
1649 socket_type = SOCK_DGRAM;
1650 #endif
1651 break;
1652 case OPT_DTLS1:
1653 #ifndef OPENSSL_NO_DTLS
1654 meth = DTLS_server_method();
1655 min_version = DTLS1_VERSION;
1656 max_version = DTLS1_VERSION;
1657 socket_type = SOCK_DGRAM;
1658 #endif
1659 break;
1660 case OPT_DTLS1_2:
1661 #ifndef OPENSSL_NO_DTLS
1662 meth = DTLS_server_method();
1663 min_version = DTLS1_2_VERSION;
1664 max_version = DTLS1_2_VERSION;
1665 socket_type = SOCK_DGRAM;
1666 #endif
1667 break;
1668 case OPT_SCTP:
1669 #ifndef OPENSSL_NO_SCTP
1670 protocol = IPPROTO_SCTP;
1671 #endif
1672 break;
1673 case OPT_SCTP_LABEL_BUG:
1674 #ifndef OPENSSL_NO_SCTP
1675 sctp_label_bug = 1;
1676 #endif
1677 break;
1678 case OPT_TIMEOUT:
1679 #ifndef OPENSSL_NO_DTLS
1680 enable_timeouts = 1;
1681 #endif
1682 break;
1683 case OPT_MTU:
1684 #ifndef OPENSSL_NO_DTLS
1685 socket_mtu = atol(opt_arg());
1686 #endif
1687 break;
1688 case OPT_LISTEN:
1689 #ifndef OPENSSL_NO_DTLS
1690 dtlslisten = 1;
1691 #endif
1692 break;
1693 case OPT_STATELESS:
1694 stateless = 1;
1695 break;
1696 case OPT_ID_PREFIX:
1697 session_id_prefix = opt_arg();
1698 break;
1699 case OPT_ENGINE:
1700 #ifndef OPENSSL_NO_ENGINE
1701 engine = setup_engine(opt_arg(), s_debug);
1702 #endif
1703 break;
1704 case OPT_R_CASES:
1705 if (!opt_rand(o))
1706 goto end;
1707 break;
1708 case OPT_PROV_CASES:
1709 if (!opt_provider(o))
1710 goto end;
1711 break;
1712 case OPT_SERVERNAME:
1713 tlsextcbp.servername = opt_arg();
1714 break;
1715 case OPT_SERVERNAME_FATAL:
1716 tlsextcbp.extension_error = SSL_TLSEXT_ERR_ALERT_FATAL;
1717 break;
1718 case OPT_CERT2:
1719 s_cert_file2 = opt_arg();
1720 break;
1721 case OPT_KEY2:
1722 s_key_file2 = opt_arg();
1723 break;
1724 case OPT_NEXTPROTONEG:
1725 #ifndef OPENSSL_NO_NEXTPROTONEG
1726 next_proto_neg_in = opt_arg();
1727 #endif
1728 break;
1729 case OPT_ALPN:
1730 alpn_in = opt_arg();
1731 break;
1732 case OPT_SRTP_PROFILES:
1733 #ifndef OPENSSL_NO_SRTP
1734 srtp_profiles = opt_arg();
1735 #endif
1736 break;
1737 case OPT_KEYMATEXPORT:
1738 keymatexportlabel = opt_arg();
1739 break;
1740 case OPT_KEYMATEXPORTLEN:
1741 keymatexportlen = atoi(opt_arg());
1742 break;
1743 case OPT_ASYNC:
1744 async = 1;
1745 break;
1746 case OPT_MAX_SEND_FRAG:
1747 max_send_fragment = atoi(opt_arg());
1748 break;
1749 case OPT_SPLIT_SEND_FRAG:
1750 split_send_fragment = atoi(opt_arg());
1751 break;
1752 case OPT_MAX_PIPELINES:
1753 max_pipelines = atoi(opt_arg());
1754 break;
1755 case OPT_READ_BUF:
1756 read_buf_len = atoi(opt_arg());
1757 break;
1758 case OPT_KEYLOG_FILE:
1759 keylog_file = opt_arg();
1760 break;
1761 case OPT_MAX_EARLY:
1762 max_early_data = atoi(opt_arg());
1763 if (max_early_data < 0) {
1764 BIO_printf(bio_err, "Invalid value for max_early_data\n");
1765 goto end;
1766 }
1767 break;
1768 case OPT_RECV_MAX_EARLY:
1769 recv_max_early_data = atoi(opt_arg());
1770 if (recv_max_early_data < 0) {
1771 BIO_printf(bio_err, "Invalid value for recv_max_early_data\n");
1772 goto end;
1773 }
1774 break;
1775 case OPT_EARLY_DATA:
1776 early_data = 1;
1777 if (max_early_data == -1)
1778 max_early_data = SSL3_RT_MAX_PLAIN_LENGTH;
1779 break;
1780 case OPT_HTTP_SERVER_BINMODE:
1781 http_server_binmode = 1;
1782 break;
1783 case OPT_NOCANAMES:
1784 no_ca_names = 1;
1785 break;
1786 case OPT_KTLS:
1787 #ifndef OPENSSL_NO_KTLS
1788 enable_ktls = 1;
1789 #endif
1790 break;
1791 case OPT_SENDFILE:
1792 #ifndef OPENSSL_NO_KTLS
1793 use_sendfile = 1;
1794 #endif
1795 break;
1796 case OPT_USE_ZC_SENDFILE:
1797 #ifndef OPENSSL_NO_KTLS
1798 use_zc_sendfile = 1;
1799 #endif
1800 break;
1801 case OPT_IGNORE_UNEXPECTED_EOF:
1802 ignore_unexpected_eof = 1;
1803 break;
1804 case OPT_TFO:
1805 tfo = 1;
1806 break;
1807 case OPT_CERT_COMP:
1808 cert_comp = 1;
1809 break;
1810 case OPT_ENABLE_SERVER_RPK:
1811 enable_server_rpk = 1;
1812 break;
1813 case OPT_ENABLE_CLIENT_RPK:
1814 enable_client_rpk = 1;
1815 break;
1816 }
1817 }
1818
1819 /* No extra arguments. */
1820 if (!opt_check_rest_arg(NULL))
1821 goto opthelp;
1822
1823 if (!app_RAND_load())
1824 goto end;
1825
1826 #ifndef OPENSSL_NO_NEXTPROTONEG
1827 if (min_version == TLS1_3_VERSION && next_proto_neg_in != NULL) {
1828 BIO_printf(bio_err, "Cannot supply -nextprotoneg with TLSv1.3\n");
1829 goto opthelp;
1830 }
1831 #endif
1832 #ifndef OPENSSL_NO_DTLS
1833 if (www && socket_type == SOCK_DGRAM) {
1834 BIO_printf(bio_err, "Can't use -HTTP, -www or -WWW with DTLS\n");
1835 goto end;
1836 }
1837
1838 if (dtlslisten && socket_type != SOCK_DGRAM) {
1839 BIO_printf(bio_err, "Can only use -listen with DTLS\n");
1840 goto end;
1841 }
1842
1843 if (rev && socket_type == SOCK_DGRAM) {
1844 BIO_printf(bio_err, "Can't use -rev with DTLS\n");
1845 goto end;
1846 }
1847 #endif
1848
1849 if (tfo && socket_type != SOCK_STREAM) {
1850 BIO_printf(bio_err, "Can only use -tfo with TLS\n");
1851 goto end;
1852 }
1853
1854 if (stateless && socket_type != SOCK_STREAM) {
1855 BIO_printf(bio_err, "Can only use --stateless with TLS\n");
1856 goto end;
1857 }
1858
1859 #ifdef AF_UNIX
1860 if (socket_family == AF_UNIX && socket_type != SOCK_STREAM) {
1861 BIO_printf(bio_err,
1862 "Can't use unix sockets and datagrams together\n");
1863 goto end;
1864 }
1865 #endif
1866 if (early_data && rev) {
1867 BIO_printf(bio_err,
1868 "Can't use -early_data in combination with -rev\n");
1869 goto end;
1870 }
1871
1872 #ifndef OPENSSL_NO_SCTP
1873 if (protocol == IPPROTO_SCTP) {
1874 if (socket_type != SOCK_DGRAM) {
1875 BIO_printf(bio_err, "Can't use -sctp without DTLS\n");
1876 goto end;
1877 }
1878 /* SCTP is unusual. It uses DTLS over a SOCK_STREAM protocol */
1879 socket_type = SOCK_STREAM;
1880 }
1881 #endif
1882
1883 #ifndef OPENSSL_NO_KTLS
1884 if (use_zc_sendfile && !use_sendfile) {
1885 BIO_printf(bio_out, "Warning: -zerocopy_sendfile depends on -sendfile, enabling -sendfile now.\n");
1886 use_sendfile = 1;
1887 }
1888
1889 if (use_sendfile && enable_ktls == 0) {
1890 BIO_printf(bio_out, "Warning: -sendfile depends on -ktls, enabling -ktls now.\n");
1891 enable_ktls = 1;
1892 }
1893
1894 if (use_sendfile && www <= 1) {
1895 BIO_printf(bio_err, "Can't use -sendfile without -WWW or -HTTP\n");
1896 goto end;
1897 }
1898 #endif
1899
1900 if (!app_passwd(passarg, dpassarg, &pass, &dpass)) {
1901 BIO_printf(bio_err, "Error getting password\n");
1902 goto end;
1903 }
1904
1905 if (s_key_file == NULL)
1906 s_key_file = s_cert_file;
1907
1908 if (s_key_file2 == NULL)
1909 s_key_file2 = s_cert_file2;
1910
1911 if (!load_excert(&exc))
1912 goto end;
1913
1914 if (nocert == 0) {
1915 s_key = load_key(s_key_file, s_key_format, 0, pass, engine,
1916 "server certificate private key");
1917 if (s_key == NULL)
1918 goto end;
1919
1920 s_cert = load_cert_pass(s_cert_file, s_cert_format, 1, pass,
1921 "server certificate");
1922
1923 if (s_cert == NULL)
1924 goto end;
1925 if (s_chain_file != NULL) {
1926 if (!load_certs(s_chain_file, 0, &s_chain, NULL,
1927 "server certificate chain"))
1928 goto end;
1929 }
1930
1931 if (tlsextcbp.servername != NULL) {
1932 s_key2 = load_key(s_key_file2, s_key_format, 0, pass, engine,
1933 "second server certificate private key");
1934 if (s_key2 == NULL)
1935 goto end;
1936
1937 s_cert2 = load_cert_pass(s_cert_file2, s_cert_format, 1, pass,
1938 "second server certificate");
1939
1940 if (s_cert2 == NULL)
1941 goto end;
1942 }
1943 }
1944 #if !defined(OPENSSL_NO_NEXTPROTONEG)
1945 if (next_proto_neg_in) {
1946 next_proto.data = next_protos_parse(&next_proto.len, next_proto_neg_in);
1947 if (next_proto.data == NULL)
1948 goto end;
1949 }
1950 #endif
1951 alpn_ctx.data = NULL;
1952 if (alpn_in) {
1953 alpn_ctx.data = next_protos_parse(&alpn_ctx.len, alpn_in);
1954 if (alpn_ctx.data == NULL)
1955 goto end;
1956 }
1957
1958 if (crl_file != NULL) {
1959 X509_CRL *crl;
1960 crl = load_crl(crl_file, crl_format, 0, "CRL");
1961 if (crl == NULL)
1962 goto end;
1963 crls = sk_X509_CRL_new_null();
1964 if (crls == NULL || !sk_X509_CRL_push(crls, crl)) {
1965 BIO_puts(bio_err, "Error adding CRL\n");
1966 ERR_print_errors(bio_err);
1967 X509_CRL_free(crl);
1968 goto end;
1969 }
1970 }
1971
1972 if (s_dcert_file != NULL) {
1973
1974 if (s_dkey_file == NULL)
1975 s_dkey_file = s_dcert_file;
1976
1977 s_dkey = load_key(s_dkey_file, s_dkey_format,
1978 0, dpass, engine, "second certificate private key");
1979 if (s_dkey == NULL)
1980 goto end;
1981
1982 s_dcert = load_cert_pass(s_dcert_file, s_dcert_format, 1, dpass,
1983 "second server certificate");
1984
1985 if (s_dcert == NULL) {
1986 ERR_print_errors(bio_err);
1987 goto end;
1988 }
1989 if (s_dchain_file != NULL) {
1990 if (!load_certs(s_dchain_file, 0, &s_dchain, NULL,
1991 "second server certificate chain"))
1992 goto end;
1993 }
1994 }
1995
1996 if (bio_s_out == NULL) {
1997 if (s_quiet && !s_debug) {
1998 bio_s_out = BIO_new(BIO_s_null());
1999 if (s_msg && bio_s_msg == NULL) {
2000 bio_s_msg = dup_bio_out(FORMAT_TEXT);
2001 if (bio_s_msg == NULL) {
2002 BIO_printf(bio_err, "Out of memory\n");
2003 goto end;
2004 }
2005 }
2006 } else {
2007 bio_s_out = dup_bio_out(FORMAT_TEXT);
2008 }
2009 }
2010
2011 if (bio_s_out == NULL)
2012 goto end;
2013
2014 if (nocert) {
2015 s_cert_file = NULL;
2016 s_key_file = NULL;
2017 s_dcert_file = NULL;
2018 s_dkey_file = NULL;
2019 s_cert_file2 = NULL;
2020 s_key_file2 = NULL;
2021 }
2022
2023 ctx = SSL_CTX_new_ex(app_get0_libctx(), app_get0_propq(), meth);
2024 if (ctx == NULL) {
2025 ERR_print_errors(bio_err);
2026 goto end;
2027 }
2028
2029 SSL_CTX_clear_mode(ctx, SSL_MODE_AUTO_RETRY);
2030
2031 if (sdebug)
2032 ssl_ctx_security_debug(ctx, sdebug);
2033
2034 if (!config_ctx(cctx, ssl_args, ctx))
2035 goto end;
2036
2037 if (ssl_config) {
2038 if (SSL_CTX_config(ctx, ssl_config) == 0) {
2039 BIO_printf(bio_err, "Error using configuration \"%s\"\n",
2040 ssl_config);
2041 ERR_print_errors(bio_err);
2042 goto end;
2043 }
2044 }
2045 #ifndef OPENSSL_NO_SCTP
2046 if (protocol == IPPROTO_SCTP && sctp_label_bug == 1)
2047 SSL_CTX_set_mode(ctx, SSL_MODE_DTLS_SCTP_LABEL_LENGTH_BUG);
2048 #endif
2049
2050 if (min_version != 0
2051 && SSL_CTX_set_min_proto_version(ctx, min_version) == 0)
2052 goto end;
2053 if (max_version != 0
2054 && SSL_CTX_set_max_proto_version(ctx, max_version) == 0)
2055 goto end;
2056
2057 if (session_id_prefix) {
2058 if (strlen(session_id_prefix) >= 32)
2059 BIO_printf(bio_err,
2060 "warning: id_prefix is too long, only one new session will be possible\n");
2061 if (!SSL_CTX_set_generate_session_id(ctx, generate_session_id)) {
2062 BIO_printf(bio_err, "error setting 'id_prefix'\n");
2063 ERR_print_errors(bio_err);
2064 goto end;
2065 }
2066 BIO_printf(bio_err, "id_prefix '%s' set.\n", session_id_prefix);
2067 }
2068 if (exc != NULL)
2069 ssl_ctx_set_excert(ctx, exc);
2070
2071 if (state)
2072 SSL_CTX_set_info_callback(ctx, apps_ssl_info_callback);
2073 if (no_cache)
2074 SSL_CTX_set_session_cache_mode(ctx, SSL_SESS_CACHE_OFF);
2075 else if (ext_cache)
2076 init_session_cache_ctx(ctx);
2077 else
2078 SSL_CTX_sess_set_cache_size(ctx, 128);
2079
2080 if (async) {
2081 SSL_CTX_set_mode(ctx, SSL_MODE_ASYNC);
2082 }
2083
2084 if (no_ca_names) {
2085 SSL_CTX_set_options(ctx, SSL_OP_DISABLE_TLSEXT_CA_NAMES);
2086 }
2087
2088 if (ignore_unexpected_eof)
2089 SSL_CTX_set_options(ctx, SSL_OP_IGNORE_UNEXPECTED_EOF);
2090 #ifndef OPENSSL_NO_KTLS
2091 if (enable_ktls)
2092 SSL_CTX_set_options(ctx, SSL_OP_ENABLE_KTLS);
2093 if (use_zc_sendfile)
2094 SSL_CTX_set_options(ctx, SSL_OP_ENABLE_KTLS_TX_ZEROCOPY_SENDFILE);
2095 #endif
2096
2097 if (max_send_fragment > 0
2098 && !SSL_CTX_set_max_send_fragment(ctx, max_send_fragment)) {
2099 BIO_printf(bio_err, "%s: Max send fragment size %u is out of permitted range\n",
2100 prog, max_send_fragment);
2101 goto end;
2102 }
2103
2104 if (split_send_fragment > 0
2105 && !SSL_CTX_set_split_send_fragment(ctx, split_send_fragment)) {
2106 BIO_printf(bio_err, "%s: Split send fragment size %u is out of permitted range\n",
2107 prog, split_send_fragment);
2108 goto end;
2109 }
2110 if (max_pipelines > 0
2111 && !SSL_CTX_set_max_pipelines(ctx, max_pipelines)) {
2112 BIO_printf(bio_err, "%s: Max pipelines %u is out of permitted range\n",
2113 prog, max_pipelines);
2114 goto end;
2115 }
2116
2117 if (read_buf_len > 0) {
2118 SSL_CTX_set_default_read_buffer_len(ctx, read_buf_len);
2119 }
2120 #ifndef OPENSSL_NO_SRTP
2121 if (srtp_profiles != NULL) {
2122 /* Returns 0 on success! */
2123 if (SSL_CTX_set_tlsext_use_srtp(ctx, srtp_profiles) != 0) {
2124 BIO_printf(bio_err, "Error setting SRTP profile\n");
2125 ERR_print_errors(bio_err);
2126 goto end;
2127 }
2128 }
2129 #endif
2130
2131 if (!ctx_set_verify_locations(ctx, CAfile, noCAfile, CApath, noCApath,
2132 CAstore, noCAstore)) {
2133 ERR_print_errors(bio_err);
2134 goto end;
2135 }
2136 if (vpmtouched && !SSL_CTX_set1_param(ctx, vpm)) {
2137 BIO_printf(bio_err, "Error setting verify params\n");
2138 ERR_print_errors(bio_err);
2139 goto end;
2140 }
2141
2142 ssl_ctx_add_crls(ctx, crls, 0);
2143
2144 if (!ssl_load_stores(ctx,
2145 vfyCApath, vfyCAfile, vfyCAstore,
2146 chCApath, chCAfile, chCAstore,
2147 crls, crl_download)) {
2148 BIO_printf(bio_err, "Error loading store locations\n");
2149 ERR_print_errors(bio_err);
2150 goto end;
2151 }
2152
2153 if (s_cert2) {
2154 ctx2 = SSL_CTX_new_ex(app_get0_libctx(), app_get0_propq(), meth);
2155 if (ctx2 == NULL) {
2156 ERR_print_errors(bio_err);
2157 goto end;
2158 }
2159 }
2160
2161 if (ctx2 != NULL) {
2162 BIO_printf(bio_s_out, "Setting secondary ctx parameters\n");
2163
2164 if (sdebug)
2165 ssl_ctx_security_debug(ctx2, sdebug);
2166
2167 if (session_id_prefix) {
2168 if (strlen(session_id_prefix) >= 32)
2169 BIO_printf(bio_err,
2170 "warning: id_prefix is too long, only one new session will be possible\n");
2171 if (!SSL_CTX_set_generate_session_id(ctx2, generate_session_id)) {
2172 BIO_printf(bio_err, "error setting 'id_prefix'\n");
2173 ERR_print_errors(bio_err);
2174 goto end;
2175 }
2176 BIO_printf(bio_err, "id_prefix '%s' set.\n", session_id_prefix);
2177 }
2178 if (exc != NULL)
2179 ssl_ctx_set_excert(ctx2, exc);
2180
2181 if (state)
2182 SSL_CTX_set_info_callback(ctx2, apps_ssl_info_callback);
2183
2184 if (no_cache)
2185 SSL_CTX_set_session_cache_mode(ctx2, SSL_SESS_CACHE_OFF);
2186 else if (ext_cache)
2187 init_session_cache_ctx(ctx2);
2188 else
2189 SSL_CTX_sess_set_cache_size(ctx2, 128);
2190
2191 if (async)
2192 SSL_CTX_set_mode(ctx2, SSL_MODE_ASYNC);
2193
2194 if (!ctx_set_verify_locations(ctx2, CAfile, noCAfile, CApath,
2195 noCApath, CAstore, noCAstore)) {
2196 ERR_print_errors(bio_err);
2197 goto end;
2198 }
2199 if (vpmtouched && !SSL_CTX_set1_param(ctx2, vpm)) {
2200 BIO_printf(bio_err, "Error setting verify params\n");
2201 ERR_print_errors(bio_err);
2202 goto end;
2203 }
2204
2205 ssl_ctx_add_crls(ctx2, crls, 0);
2206 if (!config_ctx(cctx, ssl_args, ctx2))
2207 goto end;
2208 }
2209 #ifndef OPENSSL_NO_NEXTPROTONEG
2210 if (next_proto.data)
2211 SSL_CTX_set_next_protos_advertised_cb(ctx, next_proto_cb,
2212 &next_proto);
2213 #endif
2214 if (alpn_ctx.data)
2215 SSL_CTX_set_alpn_select_cb(ctx, alpn_cb, &alpn_ctx);
2216
2217 if (!no_dhe) {
2218 EVP_PKEY *dhpkey = NULL;
2219
2220 if (dhfile != NULL)
2221 dhpkey = load_keyparams(dhfile, FORMAT_UNDEF, 0, "DH", "DH parameters");
2222 else if (s_cert_file != NULL)
2223 dhpkey = load_keyparams_suppress(s_cert_file, FORMAT_UNDEF, 0, "DH",
2224 "DH parameters", 1);
2225
2226 if (dhpkey != NULL) {
2227 BIO_printf(bio_s_out, "Setting temp DH parameters\n");
2228 } else {
2229 BIO_printf(bio_s_out, "Using default temp DH parameters\n");
2230 }
2231 (void)BIO_flush(bio_s_out);
2232
2233 if (dhpkey == NULL) {
2234 SSL_CTX_set_dh_auto(ctx, 1);
2235 } else {
2236 /*
2237 * We need 2 references: one for use by ctx and one for use by
2238 * ctx2
2239 */
2240 if (!EVP_PKEY_up_ref(dhpkey)) {
2241 EVP_PKEY_free(dhpkey);
2242 goto end;
2243 }
2244 if (!SSL_CTX_set0_tmp_dh_pkey(ctx, dhpkey)) {
2245 BIO_puts(bio_err, "Error setting temp DH parameters\n");
2246 ERR_print_errors(bio_err);
2247 /* Free 2 references */
2248 EVP_PKEY_free(dhpkey);
2249 EVP_PKEY_free(dhpkey);
2250 goto end;
2251 }
2252 }
2253
2254 if (ctx2 != NULL) {
2255 if (dhfile != NULL) {
2256 EVP_PKEY *dhpkey2 = load_keyparams_suppress(s_cert_file2,
2257 FORMAT_UNDEF,
2258 0, "DH",
2259 "DH parameters", 1);
2260
2261 if (dhpkey2 != NULL) {
2262 BIO_printf(bio_s_out, "Setting temp DH parameters\n");
2263 (void)BIO_flush(bio_s_out);
2264
2265 EVP_PKEY_free(dhpkey);
2266 dhpkey = dhpkey2;
2267 }
2268 }
2269 if (dhpkey == NULL) {
2270 SSL_CTX_set_dh_auto(ctx2, 1);
2271 } else if (!SSL_CTX_set0_tmp_dh_pkey(ctx2, dhpkey)) {
2272 BIO_puts(bio_err, "Error setting temp DH parameters\n");
2273 ERR_print_errors(bio_err);
2274 EVP_PKEY_free(dhpkey);
2275 goto end;
2276 }
2277 dhpkey = NULL;
2278 }
2279 EVP_PKEY_free(dhpkey);
2280 }
2281
2282 if (!set_cert_key_stuff(ctx, s_cert, s_key, s_chain, build_chain))
2283 goto end;
2284
2285 if (s_serverinfo_file != NULL
2286 && !SSL_CTX_use_serverinfo_file(ctx, s_serverinfo_file)) {
2287 ERR_print_errors(bio_err);
2288 goto end;
2289 }
2290
2291 if (ctx2 != NULL
2292 && !set_cert_key_stuff(ctx2, s_cert2, s_key2, NULL, build_chain))
2293 goto end;
2294
2295 if (s_dcert != NULL) {
2296 if (!set_cert_key_stuff(ctx, s_dcert, s_dkey, s_dchain, build_chain))
2297 goto end;
2298 }
2299
2300 if (no_resume_ephemeral) {
2301 SSL_CTX_set_not_resumable_session_callback(ctx,
2302 not_resumable_sess_cb);
2303
2304 if (ctx2 != NULL)
2305 SSL_CTX_set_not_resumable_session_callback(ctx2,
2306 not_resumable_sess_cb);
2307 }
2308 #ifndef OPENSSL_NO_PSK
2309 if (psk_key != NULL) {
2310 if (s_debug)
2311 BIO_printf(bio_s_out, "PSK key given, setting server callback\n");
2312 SSL_CTX_set_psk_server_callback(ctx, psk_server_cb);
2313 }
2314
2315 if (psk_identity_hint != NULL) {
2316 if (min_version == TLS1_3_VERSION) {
2317 BIO_printf(bio_s_out, "PSK warning: there is NO identity hint in TLSv1.3\n");
2318 } else {
2319 if (!SSL_CTX_use_psk_identity_hint(ctx, psk_identity_hint)) {
2320 BIO_printf(bio_err, "error setting PSK identity hint to context\n");
2321 ERR_print_errors(bio_err);
2322 goto end;
2323 }
2324 }
2325 }
2326 #endif
2327 if (psksessf != NULL) {
2328 BIO *stmp = BIO_new_file(psksessf, "r");
2329
2330 if (stmp == NULL) {
2331 BIO_printf(bio_err, "Can't open PSK session file %s\n", psksessf);
2332 ERR_print_errors(bio_err);
2333 goto end;
2334 }
2335 psksess = PEM_read_bio_SSL_SESSION(stmp, NULL, 0, NULL);
2336 BIO_free(stmp);
2337 if (psksess == NULL) {
2338 BIO_printf(bio_err, "Can't read PSK session file %s\n", psksessf);
2339 ERR_print_errors(bio_err);
2340 goto end;
2341 }
2342 }
2343
2344 if (psk_key != NULL || psksess != NULL)
2345 SSL_CTX_set_psk_find_session_callback(ctx, psk_find_session_cb);
2346
2347 SSL_CTX_set_verify(ctx, s_server_verify, verify_callback);
2348 if (!SSL_CTX_set_session_id_context(ctx,
2349 (void *)&s_server_session_id_context,
2350 sizeof(s_server_session_id_context))) {
2351 BIO_printf(bio_err, "error setting session id context\n");
2352 ERR_print_errors(bio_err);
2353 goto end;
2354 }
2355
2356 /* Set DTLS cookie generation and verification callbacks */
2357 SSL_CTX_set_cookie_generate_cb(ctx, generate_cookie_callback);
2358 SSL_CTX_set_cookie_verify_cb(ctx, verify_cookie_callback);
2359
2360 /* Set TLS1.3 cookie generation and verification callbacks */
2361 SSL_CTX_set_stateless_cookie_generate_cb(ctx, generate_stateless_cookie_callback);
2362 SSL_CTX_set_stateless_cookie_verify_cb(ctx, verify_stateless_cookie_callback);
2363
2364 if (ctx2 != NULL) {
2365 SSL_CTX_set_verify(ctx2, s_server_verify, verify_callback);
2366 if (!SSL_CTX_set_session_id_context(ctx2,
2367 (void *)&s_server_session_id_context,
2368 sizeof(s_server_session_id_context))) {
2369 BIO_printf(bio_err, "error setting session id context\n");
2370 ERR_print_errors(bio_err);
2371 goto end;
2372 }
2373 tlsextcbp.biodebug = bio_s_out;
2374 SSL_CTX_set_tlsext_servername_callback(ctx2, ssl_servername_cb);
2375 SSL_CTX_set_tlsext_servername_arg(ctx2, &tlsextcbp);
2376 SSL_CTX_set_tlsext_servername_callback(ctx, ssl_servername_cb);
2377 SSL_CTX_set_tlsext_servername_arg(ctx, &tlsextcbp);
2378 }
2379
2380 #ifndef OPENSSL_NO_SRP
2381 if (srp_verifier_file != NULL) {
2382 if (!set_up_srp_verifier_file(ctx, &srp_callback_parm, srpuserseed,
2383 srp_verifier_file))
2384 goto end;
2385 } else
2386 #endif
2387 if (CAfile != NULL) {
2388 SSL_CTX_set_client_CA_list(ctx, SSL_load_client_CA_file(CAfile));
2389
2390 if (ctx2)
2391 SSL_CTX_set_client_CA_list(ctx2, SSL_load_client_CA_file(CAfile));
2392 }
2393 #ifndef OPENSSL_NO_OCSP
2394 if (s_tlsextstatus) {
2395 SSL_CTX_set_tlsext_status_cb(ctx, cert_status_cb);
2396 SSL_CTX_set_tlsext_status_arg(ctx, &tlscstatp);
2397 if (ctx2) {
2398 SSL_CTX_set_tlsext_status_cb(ctx2, cert_status_cb);
2399 SSL_CTX_set_tlsext_status_arg(ctx2, &tlscstatp);
2400 }
2401 }
2402 #endif
2403 if (set_keylog_file(ctx, keylog_file))
2404 goto end;
2405
2406 if (max_early_data >= 0)
2407 SSL_CTX_set_max_early_data(ctx, max_early_data);
2408 if (recv_max_early_data >= 0)
2409 SSL_CTX_set_recv_max_early_data(ctx, recv_max_early_data);
2410
2411 if (cert_comp) {
2412 BIO_printf(bio_s_out, "Compressing certificates\n");
2413 if (!SSL_CTX_compress_certs(ctx, 0))
2414 BIO_printf(bio_s_out, "Error compressing certs on ctx\n");
2415 if (ctx2 != NULL && !SSL_CTX_compress_certs(ctx2, 0))
2416 BIO_printf(bio_s_out, "Error compressing certs on ctx2\n");
2417 }
2418 if (enable_server_rpk)
2419 if (!SSL_CTX_set1_server_cert_type(ctx, cert_type_rpk, sizeof(cert_type_rpk))) {
2420 BIO_printf(bio_s_out, "Error setting server certificate types\n");
2421 goto end;
2422 }
2423 if (enable_client_rpk)
2424 if (!SSL_CTX_set1_client_cert_type(ctx, cert_type_rpk, sizeof(cert_type_rpk))) {
2425 BIO_printf(bio_s_out, "Error setting server certificate types\n");
2426 goto end;
2427 }
2428
2429 if (rev)
2430 server_cb = rev_body;
2431 else if (www)
2432 server_cb = www_body;
2433 else
2434 server_cb = sv_body;
2435 #ifdef AF_UNIX
2436 if (socket_family == AF_UNIX
2437 && unlink_unix_path)
2438 unlink(host);
2439 #endif
2440 if (tfo)
2441 BIO_printf(bio_s_out, "Listening for TFO\n");
2442 do_server(&accept_socket, host, port, socket_family, socket_type, protocol,
2443 server_cb, context, naccept, bio_s_out, tfo);
2444 print_stats(bio_s_out, ctx);
2445 ret = 0;
2446 end:
2447 SSL_CTX_free(ctx);
2448 SSL_SESSION_free(psksess);
2449 set_keylog_file(NULL, NULL);
2450 X509_free(s_cert);
2451 sk_X509_CRL_pop_free(crls, X509_CRL_free);
2452 X509_free(s_dcert);
2453 EVP_PKEY_free(s_key);
2454 EVP_PKEY_free(s_dkey);
2455 OSSL_STACK_OF_X509_free(s_chain);
2456 OSSL_STACK_OF_X509_free(s_dchain);
2457 OPENSSL_free(pass);
2458 OPENSSL_free(dpass);
2459 OPENSSL_free(host);
2460 OPENSSL_free(port);
2461 X509_VERIFY_PARAM_free(vpm);
2462 free_sessions();
2463 OPENSSL_free(tlscstatp.host);
2464 OPENSSL_free(tlscstatp.port);
2465 OPENSSL_free(tlscstatp.path);
2466 SSL_CTX_free(ctx2);
2467 X509_free(s_cert2);
2468 EVP_PKEY_free(s_key2);
2469 #ifndef OPENSSL_NO_NEXTPROTONEG
2470 OPENSSL_free(next_proto.data);
2471 #endif
2472 OPENSSL_free(alpn_ctx.data);
2473 ssl_excert_free(exc);
2474 sk_OPENSSL_STRING_free(ssl_args);
2475 SSL_CONF_CTX_free(cctx);
2476 release_engine(engine);
2477 BIO_free(bio_s_out);
2478 bio_s_out = NULL;
2479 BIO_free(bio_s_msg);
2480 bio_s_msg = NULL;
2481 #ifdef CHARSET_EBCDIC
2482 BIO_meth_free(methods_ebcdic);
2483 #endif
2484 return ret;
2485 }
2486
print_stats(BIO * bio,SSL_CTX * ssl_ctx)2487 static void print_stats(BIO *bio, SSL_CTX *ssl_ctx)
2488 {
2489 BIO_printf(bio, "%4ld items in the session cache\n",
2490 SSL_CTX_sess_number(ssl_ctx));
2491 BIO_printf(bio, "%4ld client connects (SSL_connect())\n",
2492 SSL_CTX_sess_connect(ssl_ctx));
2493 BIO_printf(bio, "%4ld client renegotiates (SSL_connect())\n",
2494 SSL_CTX_sess_connect_renegotiate(ssl_ctx));
2495 BIO_printf(bio, "%4ld client connects that finished\n",
2496 SSL_CTX_sess_connect_good(ssl_ctx));
2497 BIO_printf(bio, "%4ld server accepts (SSL_accept())\n",
2498 SSL_CTX_sess_accept(ssl_ctx));
2499 BIO_printf(bio, "%4ld server renegotiates (SSL_accept())\n",
2500 SSL_CTX_sess_accept_renegotiate(ssl_ctx));
2501 BIO_printf(bio, "%4ld server accepts that finished\n",
2502 SSL_CTX_sess_accept_good(ssl_ctx));
2503 BIO_printf(bio, "%4ld session cache hits\n", SSL_CTX_sess_hits(ssl_ctx));
2504 BIO_printf(bio, "%4ld session cache misses\n",
2505 SSL_CTX_sess_misses(ssl_ctx));
2506 BIO_printf(bio, "%4ld session cache timeouts\n",
2507 SSL_CTX_sess_timeouts(ssl_ctx));
2508 BIO_printf(bio, "%4ld callback cache hits\n",
2509 SSL_CTX_sess_cb_hits(ssl_ctx));
2510 BIO_printf(bio, "%4ld cache full overflows (%ld allowed)\n",
2511 SSL_CTX_sess_cache_full(ssl_ctx),
2512 SSL_CTX_sess_get_cache_size(ssl_ctx));
2513 }
2514
count_reads_callback(BIO * bio,int cmd,const char * argp,size_t len,int argi,long argl,int ret,size_t * processed)2515 static long int count_reads_callback(BIO *bio, int cmd, const char *argp, size_t len,
2516 int argi, long argl, int ret, size_t *processed)
2517 {
2518 unsigned int *p_counter = (unsigned int *)BIO_get_callback_arg(bio);
2519
2520 switch (cmd) {
2521 case BIO_CB_READ: /* No break here */
2522 case BIO_CB_GETS:
2523 if (p_counter != NULL)
2524 ++*p_counter;
2525 break;
2526 default:
2527 break;
2528 }
2529
2530 if (s_debug) {
2531 BIO_set_callback_arg(bio, (char *)bio_s_out);
2532 ret = (int)bio_dump_callback(bio, cmd, argp, len, argi, argl, ret, processed);
2533 BIO_set_callback_arg(bio, (char *)p_counter);
2534 }
2535
2536 return ret;
2537 }
2538
sv_body(int s,int stype,int prot,unsigned char * context)2539 static int sv_body(int s, int stype, int prot, unsigned char *context)
2540 {
2541 char *buf = NULL;
2542 fd_set readfds;
2543 int ret = 1, width;
2544 int k;
2545 unsigned long l;
2546 SSL *con = NULL;
2547 BIO *sbio;
2548 struct timeval timeout;
2549 #if !(defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS))
2550 struct timeval *timeoutp;
2551 #endif
2552 #ifndef OPENSSL_NO_DTLS
2553 #ifndef OPENSSL_NO_SCTP
2554 int isdtls = (stype == SOCK_DGRAM || prot == IPPROTO_SCTP);
2555 #else
2556 int isdtls = (stype == SOCK_DGRAM);
2557 #endif
2558 #endif
2559
2560 buf = app_malloc(bufsize, "server buffer");
2561 if (s_nbio) {
2562 if (!BIO_socket_nbio(s, 1))
2563 ERR_print_errors(bio_err);
2564 else if (!s_quiet)
2565 BIO_printf(bio_err, "Turned on non blocking io\n");
2566 }
2567
2568 con = SSL_new(ctx);
2569 if (con == NULL) {
2570 ret = -1;
2571 goto err;
2572 }
2573
2574 if (s_tlsextdebug) {
2575 SSL_set_tlsext_debug_callback(con, tlsext_cb);
2576 SSL_set_tlsext_debug_arg(con, bio_s_out);
2577 }
2578
2579 if (context != NULL
2580 && !SSL_set_session_id_context(con, context,
2581 strlen((char *)context))) {
2582 BIO_printf(bio_err, "Error setting session id context\n");
2583 ret = -1;
2584 goto err;
2585 }
2586
2587 if (!SSL_clear(con)) {
2588 BIO_printf(bio_err, "Error clearing SSL connection\n");
2589 ret = -1;
2590 goto err;
2591 }
2592 #ifndef OPENSSL_NO_DTLS
2593 if (isdtls) {
2594 #ifndef OPENSSL_NO_SCTP
2595 if (prot == IPPROTO_SCTP)
2596 sbio = BIO_new_dgram_sctp(s, BIO_NOCLOSE);
2597 else
2598 #endif
2599 sbio = BIO_new_dgram(s, BIO_NOCLOSE);
2600 if (sbio == NULL) {
2601 BIO_printf(bio_err, "Unable to create BIO\n");
2602 ERR_print_errors(bio_err);
2603 goto err;
2604 }
2605
2606 if (enable_timeouts) {
2607 timeout.tv_sec = 0;
2608 timeout.tv_usec = DGRAM_RCV_TIMEOUT;
2609 BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_RECV_TIMEOUT, 0, &timeout);
2610
2611 timeout.tv_sec = 0;
2612 timeout.tv_usec = DGRAM_SND_TIMEOUT;
2613 BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_SEND_TIMEOUT, 0, &timeout);
2614 }
2615
2616 if (socket_mtu) {
2617 if (socket_mtu < DTLS_get_link_min_mtu(con)) {
2618 BIO_printf(bio_err, "MTU too small. Must be at least %ld\n",
2619 DTLS_get_link_min_mtu(con));
2620 ret = -1;
2621 BIO_free(sbio);
2622 goto err;
2623 }
2624 SSL_set_options(con, SSL_OP_NO_QUERY_MTU);
2625 if (!DTLS_set_link_mtu(con, socket_mtu)) {
2626 BIO_printf(bio_err, "Failed to set MTU\n");
2627 ret = -1;
2628 BIO_free(sbio);
2629 goto err;
2630 }
2631 } else
2632 /* want to do MTU discovery */
2633 BIO_ctrl(sbio, BIO_CTRL_DGRAM_MTU_DISCOVER, 0, NULL);
2634
2635 #ifndef OPENSSL_NO_SCTP
2636 if (prot != IPPROTO_SCTP)
2637 #endif
2638 /* Turn on cookie exchange. Not necessary for SCTP */
2639 SSL_set_options(con, SSL_OP_COOKIE_EXCHANGE);
2640 } else
2641 #endif
2642 sbio = BIO_new_socket(s, BIO_NOCLOSE);
2643
2644 if (sbio == NULL) {
2645 BIO_printf(bio_err, "Unable to create BIO\n");
2646 ERR_print_errors(bio_err);
2647 goto err;
2648 }
2649
2650 if (s_nbio_test) {
2651 BIO *test;
2652
2653 test = BIO_new(BIO_f_nbio_test());
2654 if (test == NULL) {
2655 BIO_printf(bio_err, "Unable to create BIO\n");
2656 ret = -1;
2657 BIO_free(sbio);
2658 goto err;
2659 }
2660 sbio = BIO_push(test, sbio);
2661 }
2662
2663 SSL_set_bio(con, sbio, sbio);
2664 SSL_set_accept_state(con);
2665 /* SSL_set_fd(con,s); */
2666
2667 BIO_set_callback_ex(SSL_get_rbio(con), count_reads_callback);
2668 if (s_msg) {
2669 #ifndef OPENSSL_NO_SSL_TRACE
2670 if (s_msg == 2)
2671 SSL_set_msg_callback(con, SSL_trace);
2672 else
2673 #endif
2674 SSL_set_msg_callback(con, msg_cb);
2675 SSL_set_msg_callback_arg(con, bio_s_msg ? bio_s_msg : bio_s_out);
2676 }
2677
2678 if (s_tlsextdebug) {
2679 SSL_set_tlsext_debug_callback(con, tlsext_cb);
2680 SSL_set_tlsext_debug_arg(con, bio_s_out);
2681 }
2682
2683 if (early_data) {
2684 int write_header = 1, edret = SSL_READ_EARLY_DATA_ERROR;
2685 size_t readbytes;
2686
2687 while (edret != SSL_READ_EARLY_DATA_FINISH) {
2688 for (;;) {
2689 edret = SSL_read_early_data(con, buf, bufsize, &readbytes);
2690 if (edret != SSL_READ_EARLY_DATA_ERROR)
2691 break;
2692
2693 switch (SSL_get_error(con, 0)) {
2694 case SSL_ERROR_WANT_WRITE:
2695 case SSL_ERROR_WANT_ASYNC:
2696 case SSL_ERROR_WANT_READ:
2697 /* Just keep trying - busy waiting */
2698 continue;
2699 default:
2700 BIO_printf(bio_err, "Error reading early data\n");
2701 ERR_print_errors(bio_err);
2702 goto err;
2703 }
2704 }
2705 if (readbytes > 0) {
2706 if (write_header) {
2707 BIO_printf(bio_s_out, "Early data received:\n");
2708 write_header = 0;
2709 }
2710 raw_write_stdout(buf, (unsigned int)readbytes);
2711 (void)BIO_flush(bio_s_out);
2712 }
2713 }
2714 if (write_header) {
2715 if (SSL_get_early_data_status(con) == SSL_EARLY_DATA_NOT_SENT)
2716 BIO_printf(bio_s_out, "No early data received\n");
2717 else
2718 BIO_printf(bio_s_out, "Early data was rejected\n");
2719 } else {
2720 BIO_printf(bio_s_out, "\nEnd of early data\n");
2721 }
2722 if (SSL_is_init_finished(con))
2723 print_connection_info(con);
2724 }
2725
2726 if (fileno_stdin() > s)
2727 width = fileno_stdin() + 1;
2728 else
2729 width = s + 1;
2730 for (;;) {
2731 int i;
2732 int read_from_terminal;
2733 int read_from_sslcon;
2734
2735 read_from_terminal = 0;
2736 read_from_sslcon = SSL_has_pending(con)
2737 || (async && SSL_waiting_for_async(con));
2738
2739 if (!read_from_sslcon) {
2740 FD_ZERO(&readfds);
2741 #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS)
2742 openssl_fdset(fileno_stdin(), &readfds);
2743 #endif
2744 openssl_fdset(s, &readfds);
2745 /*
2746 * Note: under VMS with SOCKETSHR the second parameter is
2747 * currently of type (int *) whereas under other systems it is
2748 * (void *) if you don't have a cast it will choke the compiler:
2749 * if you do have a cast then you can either go for (int *) or
2750 * (void *).
2751 */
2752 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
2753 /*
2754 * Under DOS (non-djgpp) and Windows we can't select on stdin:
2755 * only on sockets. As a workaround we timeout the select every
2756 * second and check for any keypress. In a proper Windows
2757 * application we wouldn't do this because it is inefficient.
2758 */
2759 timeout.tv_sec = 1;
2760 timeout.tv_usec = 0;
2761 i = select(width, (void *)&readfds, NULL, NULL, &timeout);
2762 if (has_stdin_waiting())
2763 read_from_terminal = 1;
2764 if ((i < 0) || (!i && !read_from_terminal))
2765 continue;
2766 #else
2767 if (SSL_is_dtls(con) && DTLSv1_get_timeout(con, &timeout))
2768 timeoutp = &timeout;
2769 else
2770 timeoutp = NULL;
2771
2772 i = select(width, (void *)&readfds, NULL, NULL, timeoutp);
2773
2774 if ((SSL_is_dtls(con)) && DTLSv1_handle_timeout(con) > 0)
2775 BIO_printf(bio_err, "TIMEOUT occurred\n");
2776
2777 if (i <= 0)
2778 continue;
2779 if (FD_ISSET(fileno_stdin(), &readfds))
2780 read_from_terminal = 1;
2781 #endif
2782 if (FD_ISSET(s, &readfds))
2783 read_from_sslcon = 1;
2784 }
2785 if (read_from_terminal) {
2786 if (s_crlf) {
2787 int j, lf_num;
2788
2789 i = raw_read_stdin(buf, bufsize / 2);
2790 lf_num = 0;
2791 /* both loops are skipped when i <= 0 */
2792 for (j = 0; j < i; j++)
2793 if (buf[j] == '\n')
2794 lf_num++;
2795 for (j = i - 1; j >= 0; j--) {
2796 buf[j + lf_num] = buf[j];
2797 if (buf[j] == '\n') {
2798 lf_num--;
2799 i++;
2800 buf[j + lf_num] = '\r';
2801 }
2802 }
2803 assert(lf_num == 0);
2804 } else {
2805 i = raw_read_stdin(buf, bufsize);
2806 }
2807
2808 if (!s_quiet && !s_brief) {
2809 if ((i <= 0) || (buf[0] == 'Q')) {
2810 BIO_printf(bio_s_out, "DONE\n");
2811 (void)BIO_flush(bio_s_out);
2812 BIO_closesocket(s);
2813 close_accept_socket();
2814 ret = -11;
2815 goto err;
2816 }
2817 if ((i <= 0) || (buf[0] == 'q')) {
2818 BIO_printf(bio_s_out, "DONE\n");
2819 (void)BIO_flush(bio_s_out);
2820 if (SSL_version(con) != DTLS1_VERSION)
2821 BIO_closesocket(s);
2822 /*
2823 * close_accept_socket(); ret= -11;
2824 */
2825 goto err;
2826 }
2827 if ((buf[0] == 'r') && ((buf[1] == '\n') || (buf[1] == '\r'))) {
2828 SSL_renegotiate(con);
2829 i = SSL_do_handshake(con);
2830 printf("SSL_do_handshake -> %d\n", i);
2831 continue;
2832 }
2833 if ((buf[0] == 'R') && ((buf[1] == '\n') || (buf[1] == '\r'))) {
2834 SSL_set_verify(con,
2835 SSL_VERIFY_PEER | SSL_VERIFY_CLIENT_ONCE,
2836 NULL);
2837 SSL_renegotiate(con);
2838 i = SSL_do_handshake(con);
2839 printf("SSL_do_handshake -> %d\n", i);
2840 continue;
2841 }
2842 if ((buf[0] == 'K' || buf[0] == 'k')
2843 && ((buf[1] == '\n') || (buf[1] == '\r'))) {
2844 SSL_key_update(con, buf[0] == 'K' ? SSL_KEY_UPDATE_REQUESTED : SSL_KEY_UPDATE_NOT_REQUESTED);
2845 i = SSL_do_handshake(con);
2846 printf("SSL_do_handshake -> %d\n", i);
2847 continue;
2848 }
2849 if (buf[0] == 'c' && ((buf[1] == '\n') || (buf[1] == '\r'))) {
2850 SSL_set_verify(con, SSL_VERIFY_PEER, NULL);
2851 i = SSL_verify_client_post_handshake(con);
2852 if (i == 0) {
2853 printf("Failed to initiate request\n");
2854 ERR_print_errors(bio_err);
2855 } else {
2856 i = SSL_do_handshake(con);
2857 printf("SSL_do_handshake -> %d\n", i);
2858 }
2859 continue;
2860 }
2861 if (buf[0] == 'P') {
2862 static const char str[] = "Lets print some clear text\n";
2863 BIO_write(SSL_get_wbio(con), str, sizeof(str) - 1);
2864 }
2865 if (buf[0] == 'S') {
2866 print_stats(bio_s_out, SSL_get_SSL_CTX(con));
2867 }
2868 }
2869 #ifdef CHARSET_EBCDIC
2870 ebcdic2ascii(buf, buf, i);
2871 #endif
2872 l = k = 0;
2873 for (;;) {
2874 /* should do a select for the write */
2875 #ifdef RENEG
2876 static count = 0;
2877 if (++count == 100) {
2878 count = 0;
2879 SSL_renegotiate(con);
2880 }
2881 #endif
2882 k = SSL_write(con, &(buf[l]), (unsigned int)i);
2883 #ifndef OPENSSL_NO_SRP
2884 while (SSL_get_error(con, k) == SSL_ERROR_WANT_X509_LOOKUP) {
2885 BIO_printf(bio_s_out, "LOOKUP renego during write\n");
2886
2887 lookup_srp_user(&srp_callback_parm, bio_s_out);
2888
2889 k = SSL_write(con, &(buf[l]), (unsigned int)i);
2890 }
2891 #endif
2892 switch (SSL_get_error(con, k)) {
2893 case SSL_ERROR_NONE:
2894 break;
2895 case SSL_ERROR_WANT_ASYNC:
2896 BIO_printf(bio_s_out, "Write BLOCK (Async)\n");
2897 (void)BIO_flush(bio_s_out);
2898 wait_for_async(con);
2899 break;
2900 case SSL_ERROR_WANT_WRITE:
2901 case SSL_ERROR_WANT_READ:
2902 case SSL_ERROR_WANT_X509_LOOKUP:
2903 BIO_printf(bio_s_out, "Write BLOCK\n");
2904 (void)BIO_flush(bio_s_out);
2905 break;
2906 case SSL_ERROR_WANT_ASYNC_JOB:
2907 /*
2908 * This shouldn't ever happen in s_server. Treat as an error
2909 */
2910 case SSL_ERROR_SYSCALL:
2911 case SSL_ERROR_SSL:
2912 BIO_printf(bio_s_out, "ERROR\n");
2913 (void)BIO_flush(bio_s_out);
2914 ERR_print_errors(bio_err);
2915 ret = 1;
2916 goto err;
2917 /* break; */
2918 case SSL_ERROR_ZERO_RETURN:
2919 BIO_printf(bio_s_out, "DONE\n");
2920 (void)BIO_flush(bio_s_out);
2921 ret = 1;
2922 goto err;
2923 }
2924 if (k > 0) {
2925 l += k;
2926 i -= k;
2927 }
2928 if (i <= 0)
2929 break;
2930 }
2931 }
2932 if (read_from_sslcon) {
2933 /*
2934 * init_ssl_connection handles all async events itself so if we're
2935 * waiting for async then we shouldn't go back into
2936 * init_ssl_connection
2937 */
2938 if ((!async || !SSL_waiting_for_async(con))
2939 && !SSL_is_init_finished(con)) {
2940 /*
2941 * Count number of reads during init_ssl_connection.
2942 * It helps us to distinguish configuration errors from errors
2943 * caused by a client.
2944 */
2945 unsigned int read_counter = 0;
2946
2947 BIO_set_callback_arg(SSL_get_rbio(con), (char *)&read_counter);
2948 i = init_ssl_connection(con);
2949 BIO_set_callback_arg(SSL_get_rbio(con), NULL);
2950
2951 /*
2952 * If initialization fails without reads, then
2953 * there was a fatal error in configuration.
2954 */
2955 if (i <= 0 && read_counter == 0) {
2956 ret = -1;
2957 goto err;
2958 }
2959 if (i < 0) {
2960 ret = 0;
2961 goto err;
2962 } else if (i == 0) {
2963 ret = 1;
2964 goto err;
2965 }
2966 } else {
2967 again:
2968 i = SSL_read(con, (char *)buf, bufsize);
2969 #ifndef OPENSSL_NO_SRP
2970 while (SSL_get_error(con, i) == SSL_ERROR_WANT_X509_LOOKUP) {
2971 BIO_printf(bio_s_out, "LOOKUP renego during read\n");
2972
2973 lookup_srp_user(&srp_callback_parm, bio_s_out);
2974
2975 i = SSL_read(con, (char *)buf, bufsize);
2976 }
2977 #endif
2978 switch (SSL_get_error(con, i)) {
2979 case SSL_ERROR_NONE:
2980 #ifdef CHARSET_EBCDIC
2981 ascii2ebcdic(buf, buf, i);
2982 #endif
2983 raw_write_stdout(buf, (unsigned int)i);
2984 (void)BIO_flush(bio_s_out);
2985 if (SSL_has_pending(con))
2986 goto again;
2987 break;
2988 case SSL_ERROR_WANT_ASYNC:
2989 BIO_printf(bio_s_out, "Read BLOCK (Async)\n");
2990 (void)BIO_flush(bio_s_out);
2991 wait_for_async(con);
2992 break;
2993 case SSL_ERROR_WANT_WRITE:
2994 case SSL_ERROR_WANT_READ:
2995 BIO_printf(bio_s_out, "Read BLOCK\n");
2996 (void)BIO_flush(bio_s_out);
2997 break;
2998 case SSL_ERROR_WANT_ASYNC_JOB:
2999 /*
3000 * This shouldn't ever happen in s_server. Treat as an error
3001 */
3002 case SSL_ERROR_SYSCALL:
3003 case SSL_ERROR_SSL:
3004 BIO_printf(bio_s_out, "ERROR\n");
3005 (void)BIO_flush(bio_s_out);
3006 ERR_print_errors(bio_err);
3007 ret = 1;
3008 goto err;
3009 case SSL_ERROR_ZERO_RETURN:
3010 BIO_printf(bio_s_out, "DONE\n");
3011 (void)BIO_flush(bio_s_out);
3012 ret = 1;
3013 goto err;
3014 }
3015 }
3016 }
3017 }
3018 err:
3019 if (con != NULL) {
3020 BIO_printf(bio_s_out, "shutting down SSL\n");
3021 do_ssl_shutdown(con);
3022 SSL_free(con);
3023 }
3024 BIO_printf(bio_s_out, "CONNECTION CLOSED\n");
3025 OPENSSL_clear_free(buf, bufsize);
3026 return ret;
3027 }
3028
close_accept_socket(void)3029 static void close_accept_socket(void)
3030 {
3031 BIO_printf(bio_err, "shutdown accept socket\n");
3032 if (accept_socket >= 0) {
3033 BIO_closesocket(accept_socket);
3034 }
3035 }
3036
is_retryable(SSL * con,int i)3037 static int is_retryable(SSL *con, int i)
3038 {
3039 int err = SSL_get_error(con, i);
3040
3041 /* If it's not a fatal error, it must be retryable */
3042 return (err != SSL_ERROR_SSL)
3043 && (err != SSL_ERROR_SYSCALL)
3044 && (err != SSL_ERROR_ZERO_RETURN);
3045 }
3046
init_ssl_connection(SSL * con)3047 static int init_ssl_connection(SSL *con)
3048 {
3049 int i;
3050 long verify_err;
3051 int retry = 0;
3052
3053 if (dtlslisten || stateless) {
3054 BIO_ADDR *client = NULL;
3055
3056 if (dtlslisten) {
3057 if ((client = BIO_ADDR_new()) == NULL) {
3058 BIO_printf(bio_err, "ERROR - memory\n");
3059 return 0;
3060 }
3061 i = DTLSv1_listen(con, client);
3062 } else {
3063 i = SSL_stateless(con);
3064 }
3065 if (i > 0) {
3066 BIO *wbio;
3067 int fd = -1;
3068
3069 if (dtlslisten) {
3070 wbio = SSL_get_wbio(con);
3071 if (wbio) {
3072 BIO_get_fd(wbio, &fd);
3073 }
3074
3075 if (!wbio || BIO_connect(fd, client, 0) == 0) {
3076 BIO_printf(bio_err, "ERROR - unable to connect\n");
3077 BIO_ADDR_free(client);
3078 return 0;
3079 }
3080
3081 (void)BIO_ctrl_set_connected(wbio, client);
3082 BIO_ADDR_free(client);
3083 dtlslisten = 0;
3084 } else {
3085 stateless = 0;
3086 }
3087 i = SSL_accept(con);
3088 } else {
3089 BIO_ADDR_free(client);
3090 }
3091 } else {
3092 do {
3093 i = SSL_accept(con);
3094
3095 if (i <= 0)
3096 retry = is_retryable(con, i);
3097 #ifdef CERT_CB_TEST_RETRY
3098 {
3099 while (i <= 0
3100 && SSL_get_error(con, i) == SSL_ERROR_WANT_X509_LOOKUP
3101 && SSL_get_state(con) == TLS_ST_SR_CLNT_HELLO) {
3102 BIO_printf(bio_err,
3103 "LOOKUP from certificate callback during accept\n");
3104 i = SSL_accept(con);
3105 if (i <= 0)
3106 retry = is_retryable(con, i);
3107 }
3108 }
3109 #endif
3110
3111 #ifndef OPENSSL_NO_SRP
3112 while (i <= 0
3113 && SSL_get_error(con, i) == SSL_ERROR_WANT_X509_LOOKUP) {
3114 BIO_printf(bio_s_out, "LOOKUP during accept %s\n",
3115 srp_callback_parm.login);
3116
3117 lookup_srp_user(&srp_callback_parm, bio_s_out);
3118
3119 i = SSL_accept(con);
3120 if (i <= 0)
3121 retry = is_retryable(con, i);
3122 }
3123 #endif
3124 } while (i < 0 && SSL_waiting_for_async(con));
3125 }
3126
3127 if (i <= 0) {
3128 if (((dtlslisten || stateless) && i == 0)
3129 || (!dtlslisten && !stateless && retry)) {
3130 BIO_printf(bio_s_out, "DELAY\n");
3131 return 1;
3132 }
3133
3134 BIO_printf(bio_err, "ERROR\n");
3135
3136 verify_err = SSL_get_verify_result(con);
3137 if (verify_err != X509_V_OK) {
3138 BIO_printf(bio_err, "verify error:%s\n",
3139 X509_verify_cert_error_string(verify_err));
3140 }
3141 /* Always print any error messages */
3142 ERR_print_errors(bio_err);
3143 return 0;
3144 }
3145
3146 print_connection_info(con);
3147 return 1;
3148 }
3149
print_connection_info(SSL * con)3150 static void print_connection_info(SSL *con)
3151 {
3152 const char *str;
3153 X509 *peer;
3154 char buf[BUFSIZ];
3155 #if !defined(OPENSSL_NO_NEXTPROTONEG)
3156 const unsigned char *next_proto_neg;
3157 unsigned next_proto_neg_len;
3158 #endif
3159 unsigned char *exportedkeymat;
3160 int i;
3161
3162 if (s_brief)
3163 print_ssl_summary(con);
3164
3165 PEM_write_bio_SSL_SESSION(bio_s_out, SSL_get_session(con));
3166
3167 peer = SSL_get0_peer_certificate(con);
3168 if (peer != NULL) {
3169 BIO_printf(bio_s_out, "Client certificate\n");
3170 PEM_write_bio_X509(bio_s_out, peer);
3171 dump_cert_text(bio_s_out, peer);
3172 peer = NULL;
3173 }
3174 /* Only display RPK information if configured */
3175 if (SSL_get_negotiated_server_cert_type(con) == TLSEXT_cert_type_rpk)
3176 BIO_printf(bio_s_out, "Server-to-client raw public key negotiated\n");
3177 if (SSL_get_negotiated_client_cert_type(con) == TLSEXT_cert_type_rpk)
3178 BIO_printf(bio_s_out, "Client-to-server raw public key negotiated\n");
3179 if (enable_client_rpk) {
3180 EVP_PKEY *client_rpk = SSL_get0_peer_rpk(con);
3181
3182 if (client_rpk != NULL) {
3183 BIO_printf(bio_s_out, "Client raw public key\n");
3184 EVP_PKEY_print_public(bio_s_out, client_rpk, 2, NULL);
3185 }
3186 }
3187
3188 if (SSL_get_shared_ciphers(con, buf, sizeof(buf)) != NULL)
3189 BIO_printf(bio_s_out, "Shared ciphers:%s\n", buf);
3190 str = SSL_CIPHER_get_name(SSL_get_current_cipher(con));
3191 ssl_print_sigalgs(bio_s_out, con);
3192 #ifndef OPENSSL_NO_EC
3193 ssl_print_point_formats(bio_s_out, con);
3194 ssl_print_groups(bio_s_out, con, 0);
3195 #endif
3196 print_ca_names(bio_s_out, con);
3197 BIO_printf(bio_s_out, "CIPHER is %s\n", (str != NULL) ? str : "(NONE)");
3198
3199 #if !defined(OPENSSL_NO_NEXTPROTONEG)
3200 SSL_get0_next_proto_negotiated(con, &next_proto_neg, &next_proto_neg_len);
3201 if (next_proto_neg) {
3202 BIO_printf(bio_s_out, "NEXTPROTO is ");
3203 BIO_write(bio_s_out, next_proto_neg, next_proto_neg_len);
3204 BIO_printf(bio_s_out, "\n");
3205 }
3206 #endif
3207 #ifndef OPENSSL_NO_SRTP
3208 {
3209 SRTP_PROTECTION_PROFILE *srtp_profile
3210 = SSL_get_selected_srtp_profile(con);
3211
3212 if (srtp_profile)
3213 BIO_printf(bio_s_out, "SRTP Extension negotiated, profile=%s\n",
3214 srtp_profile->name);
3215 }
3216 #endif
3217 if (SSL_session_reused(con))
3218 BIO_printf(bio_s_out, "Reused session-id\n");
3219
3220 ssl_print_secure_renegotiation_notes(bio_s_out, con);
3221
3222 if ((SSL_get_options(con) & SSL_OP_NO_RENEGOTIATION))
3223 BIO_printf(bio_s_out, "Renegotiation is DISABLED\n");
3224
3225 if (keymatexportlabel != NULL) {
3226 BIO_printf(bio_s_out, "Keying material exporter:\n");
3227 BIO_printf(bio_s_out, " Label: '%s'\n", keymatexportlabel);
3228 BIO_printf(bio_s_out, " Length: %i bytes\n", keymatexportlen);
3229 exportedkeymat = app_malloc(keymatexportlen, "export key");
3230 if (SSL_export_keying_material(con, exportedkeymat,
3231 keymatexportlen,
3232 keymatexportlabel,
3233 strlen(keymatexportlabel),
3234 NULL, 0, 0)
3235 <= 0) {
3236 BIO_printf(bio_s_out, " Error\n");
3237 } else {
3238 BIO_printf(bio_s_out, " Keying material: ");
3239 for (i = 0; i < keymatexportlen; i++)
3240 BIO_printf(bio_s_out, "%02X", exportedkeymat[i]);
3241 BIO_printf(bio_s_out, "\n");
3242 }
3243 OPENSSL_free(exportedkeymat);
3244 }
3245 #ifndef OPENSSL_NO_KTLS
3246 if (BIO_get_ktls_send(SSL_get_wbio(con)))
3247 BIO_printf(bio_err, "Using Kernel TLS for sending\n");
3248 if (BIO_get_ktls_recv(SSL_get_rbio(con)))
3249 BIO_printf(bio_err, "Using Kernel TLS for receiving\n");
3250 #endif
3251
3252 (void)BIO_flush(bio_s_out);
3253 }
3254
www_body(int s,int stype,int prot,unsigned char * context)3255 static int www_body(int s, int stype, int prot, unsigned char *context)
3256 {
3257 char *buf = NULL, *p;
3258 int ret = 1;
3259 int i, j, k, dot;
3260 SSL *con;
3261 const SSL_CIPHER *c;
3262 BIO *io, *ssl_bio, *sbio, *edio;
3263 #ifdef RENEG
3264 int total_bytes = 0;
3265 #endif
3266 int width;
3267 #ifndef OPENSSL_NO_KTLS
3268 int use_sendfile_for_req = use_sendfile;
3269 #endif
3270 fd_set readfds;
3271 const char *opmode;
3272 #ifdef CHARSET_EBCDIC
3273 BIO *filter;
3274 #endif
3275
3276 /* Set width for a select call if needed */
3277 width = s + 1;
3278
3279 /* as we use BIO_gets(), and it always null terminates data, we need
3280 * to allocate 1 byte longer buffer to fit the full 2^14 byte record */
3281 p = buf = app_malloc(bufsize + 1, "server www buffer");
3282 io = BIO_new(BIO_f_buffer());
3283 ssl_bio = BIO_new(BIO_f_ssl());
3284 edio = BIO_new(BIO_s_mem());
3285 if ((io == NULL) || (ssl_bio == NULL) || (edio == NULL))
3286 goto err;
3287
3288 if (s_nbio) {
3289 if (!BIO_socket_nbio(s, 1))
3290 ERR_print_errors(bio_err);
3291 else if (!s_quiet)
3292 BIO_printf(bio_err, "Turned on non blocking io\n");
3293 }
3294
3295 /* lets make the output buffer a reasonable size */
3296 if (BIO_set_write_buffer_size(io, bufsize) <= 0)
3297 goto err;
3298
3299 if ((con = SSL_new(ctx)) == NULL)
3300 goto err;
3301
3302 if (s_tlsextdebug) {
3303 SSL_set_tlsext_debug_callback(con, tlsext_cb);
3304 SSL_set_tlsext_debug_arg(con, bio_s_out);
3305 }
3306
3307 if (context != NULL
3308 && !SSL_set_session_id_context(con, context,
3309 strlen((char *)context))) {
3310 SSL_free(con);
3311 goto err;
3312 }
3313
3314 sbio = BIO_new_socket(s, BIO_NOCLOSE);
3315 if (sbio == NULL) {
3316 SSL_free(con);
3317 goto err;
3318 }
3319
3320 if (s_nbio_test) {
3321 BIO *test;
3322
3323 test = BIO_new(BIO_f_nbio_test());
3324 if (test == NULL) {
3325 SSL_free(con);
3326 BIO_free(sbio);
3327 goto err;
3328 }
3329
3330 sbio = BIO_push(test, sbio);
3331 }
3332 SSL_set_bio(con, sbio, sbio);
3333 SSL_set_accept_state(con);
3334
3335 /* No need to free |con| after this. Done by BIO_free(ssl_bio) */
3336 BIO_set_ssl(ssl_bio, con, BIO_CLOSE);
3337 BIO_push(io, ssl_bio);
3338 ssl_bio = NULL;
3339 #ifdef CHARSET_EBCDIC
3340 filter = BIO_new(BIO_f_ebcdic_filter());
3341 if (filter == NULL)
3342 goto err;
3343
3344 io = BIO_push(filter, io);
3345
3346 filter = BIO_new(BIO_f_ebcdic_filter());
3347 if (filter == NULL)
3348 goto err;
3349
3350 edio = BIO_push(filter, edio);
3351 #endif
3352
3353 if (s_debug) {
3354 BIO_set_callback_ex(SSL_get_rbio(con), bio_dump_callback);
3355 BIO_set_callback_arg(SSL_get_rbio(con), (char *)bio_s_out);
3356 }
3357 if (s_msg) {
3358 #ifndef OPENSSL_NO_SSL_TRACE
3359 if (s_msg == 2)
3360 SSL_set_msg_callback(con, SSL_trace);
3361 else
3362 #endif
3363 SSL_set_msg_callback(con, msg_cb);
3364 SSL_set_msg_callback_arg(con, bio_s_msg ? bio_s_msg : bio_s_out);
3365 }
3366
3367 if (early_data) {
3368 int edret = SSL_READ_EARLY_DATA_ERROR;
3369 size_t readbytes;
3370
3371 while (edret != SSL_READ_EARLY_DATA_FINISH) {
3372 for (;;) {
3373 edret = SSL_read_early_data(con, buf, bufsize, &readbytes);
3374 if (edret != SSL_READ_EARLY_DATA_ERROR)
3375 break;
3376
3377 switch (SSL_get_error(con, 0)) {
3378 case SSL_ERROR_WANT_WRITE:
3379 case SSL_ERROR_WANT_ASYNC:
3380 case SSL_ERROR_WANT_READ:
3381 /* Just keep trying - busy waiting */
3382 continue;
3383 default:
3384 BIO_printf(bio_err, "Error reading early data\n");
3385 ERR_print_errors(bio_err);
3386 goto err;
3387 }
3388 }
3389 if (readbytes > 0)
3390 BIO_write(edio, buf, (int)readbytes);
3391 }
3392 }
3393
3394 for (;;) {
3395 i = BIO_gets(!BIO_eof(edio) ? edio : io, buf, bufsize + 1);
3396 if (i < 0) { /* error */
3397 if (!BIO_should_retry(io) && !SSL_waiting_for_async(con)) {
3398 if (!s_quiet)
3399 ERR_print_errors(bio_err);
3400 goto err;
3401 } else {
3402 BIO_printf(bio_s_out, "read R BLOCK\n");
3403 #ifndef OPENSSL_NO_SRP
3404 if (BIO_should_io_special(io)
3405 && BIO_get_retry_reason(io) == BIO_RR_SSL_X509_LOOKUP) {
3406 BIO_printf(bio_s_out, "LOOKUP renego during read\n");
3407
3408 lookup_srp_user(&srp_callback_parm, bio_s_out);
3409
3410 continue;
3411 }
3412 #endif
3413 OSSL_sleep(1000);
3414 continue;
3415 }
3416 } else if (i == 0) { /* end of input */
3417 ret = 1;
3418 goto end;
3419 }
3420
3421 /* else we have data */
3422 if ((www == 1 && HAS_PREFIX(buf, "GET "))
3423 || (www == 2 && HAS_PREFIX(buf, "GET /stats "))) {
3424 X509 *peer = NULL;
3425 STACK_OF(SSL_CIPHER) *sk;
3426 static const char *space = " ";
3427
3428 if (www == 1 && HAS_PREFIX(buf, "GET /reneg")) {
3429 if (HAS_PREFIX(buf, "GET /renegcert"))
3430 SSL_set_verify(con,
3431 SSL_VERIFY_PEER | SSL_VERIFY_CLIENT_ONCE,
3432 NULL);
3433 i = SSL_renegotiate(con);
3434 BIO_printf(bio_s_out, "SSL_renegotiate -> %d\n", i);
3435 /* Send the HelloRequest */
3436 i = SSL_do_handshake(con);
3437 if (i <= 0) {
3438 BIO_printf(bio_s_out, "SSL_do_handshake() Retval %d\n",
3439 SSL_get_error(con, i));
3440 ERR_print_errors(bio_err);
3441 goto err;
3442 }
3443 /* Wait for a ClientHello to come back */
3444 FD_ZERO(&readfds);
3445 openssl_fdset(s, &readfds);
3446 i = select(width, (void *)&readfds, NULL, NULL, NULL);
3447 if (i <= 0 || !FD_ISSET(s, &readfds)) {
3448 BIO_printf(bio_s_out,
3449 "Error waiting for client response\n");
3450 ERR_print_errors(bio_err);
3451 goto err;
3452 }
3453 /*
3454 * We're not actually expecting any data here and we ignore
3455 * any that is sent. This is just to force the handshake that
3456 * we're expecting to come from the client. If they haven't
3457 * sent one there's not much we can do.
3458 */
3459 BIO_gets(io, buf, bufsize + 1);
3460 }
3461
3462 BIO_puts(io,
3463 "HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n");
3464 BIO_puts(io, "<HTML><BODY BGCOLOR=\"#ffffff\">\n");
3465 BIO_puts(io, "<pre>\n");
3466 /* BIO_puts(io, OpenSSL_version(OPENSSL_VERSION)); */
3467 BIO_puts(io, "\n");
3468 for (i = 0; i < local_argc; i++) {
3469 const char *myp;
3470
3471 for (myp = local_argv[i]; *myp; myp++)
3472 switch (*myp) {
3473 case '<':
3474 BIO_puts(io, "<");
3475 break;
3476 case '>':
3477 BIO_puts(io, ">");
3478 break;
3479 case '&':
3480 BIO_puts(io, "&");
3481 break;
3482 default:
3483 BIO_write(io, myp, 1);
3484 break;
3485 }
3486 BIO_write(io, " ", 1);
3487 }
3488 BIO_puts(io, "\n");
3489
3490 ssl_print_secure_renegotiation_notes(io, con);
3491
3492 /*
3493 * The following is evil and should not really be done
3494 */
3495 BIO_printf(io, "Ciphers supported in s_server binary\n");
3496 sk = SSL_get_ciphers(con);
3497 j = sk_SSL_CIPHER_num(sk);
3498 for (i = 0; i < j; i++) {
3499 c = sk_SSL_CIPHER_value(sk, i);
3500 BIO_printf(io, "%-11s:%-25s ",
3501 SSL_CIPHER_get_version(c), SSL_CIPHER_get_name(c));
3502 if ((((i + 1) % 2) == 0) && (i + 1 != j))
3503 BIO_puts(io, "\n");
3504 }
3505 BIO_puts(io, "\n");
3506 p = SSL_get_shared_ciphers(con, buf, bufsize);
3507 if (p != NULL) {
3508 BIO_printf(io,
3509 "---\nCiphers common between both SSL end points:\n");
3510 j = i = 0;
3511 while (*p) {
3512 if (*p == ':') {
3513 BIO_write(io, space, 26 - j);
3514 i++;
3515 j = 0;
3516 BIO_write(io, ((i % 3) ? " " : "\n"), 1);
3517 } else {
3518 BIO_write(io, p, 1);
3519 j++;
3520 }
3521 p++;
3522 }
3523 BIO_puts(io, "\n");
3524 }
3525 ssl_print_sigalgs(io, con);
3526 #ifndef OPENSSL_NO_EC
3527 ssl_print_groups(io, con, 0);
3528 #endif
3529 print_ca_names(io, con);
3530 BIO_printf(io, (SSL_session_reused(con) ? "---\nReused, " : "---\nNew, "));
3531 c = SSL_get_current_cipher(con);
3532 BIO_printf(io, "%s, Cipher is %s\n",
3533 SSL_CIPHER_get_version(c), SSL_CIPHER_get_name(c));
3534 SSL_SESSION_print(io, SSL_get_session(con));
3535 BIO_printf(io, "---\n");
3536 print_stats(io, SSL_get_SSL_CTX(con));
3537 BIO_printf(io, "---\n");
3538 peer = SSL_get0_peer_certificate(con);
3539 if (peer != NULL) {
3540 BIO_printf(io, "Client certificate\n");
3541 X509_print(io, peer);
3542 PEM_write_bio_X509(io, peer);
3543 peer = NULL;
3544 } else {
3545 BIO_puts(io, "no client certificate available\n");
3546 }
3547 BIO_puts(io, "</pre></BODY></HTML>\r\n\r\n");
3548 break;
3549 } else if ((www == 2 || www == 3) && CHECK_AND_SKIP_PREFIX(p, "GET /")) {
3550 BIO *file;
3551 char *e;
3552 static const char *text = "HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n";
3553
3554 dot = 1;
3555 for (e = p; *e != '\0'; e++) {
3556 if (e[0] == ' ')
3557 break;
3558
3559 if (e[0] == ':') {
3560 /* Windows drive. We treat this the same way as ".." */
3561 dot = -1;
3562 break;
3563 }
3564
3565 switch (dot) {
3566 case 1:
3567 dot = (e[0] == '.') ? 2 : 0;
3568 break;
3569 case 2:
3570 dot = (e[0] == '.') ? 3 : 0;
3571 break;
3572 case 3:
3573 dot = (e[0] == '/' || e[0] == '\\') ? -1 : 0;
3574 break;
3575 }
3576 if (dot == 0)
3577 dot = (e[0] == '/' || e[0] == '\\') ? 1 : 0;
3578 }
3579 dot = (dot == 3) || (dot == -1); /* filename contains ".."
3580 * component */
3581
3582 if (*e == '\0') {
3583 BIO_puts(io, text);
3584 BIO_printf(io, "'%s' is an invalid file name\r\n", p);
3585 break;
3586 }
3587 *e = '\0';
3588
3589 if (dot) {
3590 BIO_puts(io, text);
3591 BIO_printf(io, "'%s' contains '..' or ':'\r\n", p);
3592 break;
3593 }
3594
3595 if (*p == '/' || *p == '\\') {
3596 BIO_puts(io, text);
3597 BIO_printf(io, "'%s' is an invalid path\r\n", p);
3598 break;
3599 }
3600
3601 /* if a directory, do the index thang */
3602 if (app_isdir(p) > 0) {
3603 BIO_puts(io, text);
3604 BIO_printf(io, "'%s' is a directory\r\n", p);
3605 break;
3606 }
3607
3608 opmode = (http_server_binmode == 1) ? "rb" : "r";
3609 if ((file = BIO_new_file(p, opmode)) == NULL) {
3610 BIO_puts(io, text);
3611 BIO_printf(io, "Error opening '%s' mode='%s'\r\n", p, opmode);
3612 ERR_print_errors(io);
3613 break;
3614 }
3615
3616 if (!s_quiet)
3617 BIO_printf(bio_err, "FILE:%s\n", p);
3618
3619 if (www == 2) {
3620 i = strlen(p);
3621 if (((i > 5) && (strcmp(&(p[i - 5]), ".html") == 0)) || ((i > 4) && (strcmp(&(p[i - 4]), ".php") == 0)) || ((i > 4) && (strcmp(&(p[i - 4]), ".htm") == 0)))
3622 BIO_puts(io,
3623 "HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n");
3624 else
3625 BIO_puts(io,
3626 "HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n");
3627 }
3628 /* send the file */
3629 #ifndef OPENSSL_NO_KTLS
3630 if (use_sendfile_for_req && !BIO_get_ktls_send(SSL_get_wbio(con))) {
3631 BIO_printf(bio_err, "Warning: sendfile requested but KTLS is not available\n");
3632 use_sendfile_for_req = 0;
3633 }
3634 if (use_sendfile_for_req) {
3635 FILE *fp = NULL;
3636 int fd;
3637 struct stat st;
3638 off_t offset = 0;
3639 size_t filesize;
3640
3641 BIO_get_fp(file, &fp);
3642 fd = fileno(fp);
3643 if (fstat(fd, &st) < 0) {
3644 BIO_printf(io, "Error fstat '%s'\r\n", p);
3645 ERR_print_errors(io);
3646 goto write_error;
3647 }
3648
3649 filesize = st.st_size;
3650 if (((int)BIO_flush(io)) < 0)
3651 goto write_error;
3652
3653 for (;;) {
3654 i = SSL_sendfile(con, fd, offset, filesize, 0);
3655 if (i < 0) {
3656 BIO_printf(io, "Error SSL_sendfile '%s'\r\n", p);
3657 ERR_print_errors(io);
3658 break;
3659 } else {
3660 offset += i;
3661 filesize -= i;
3662 }
3663
3664 if (filesize <= 0) {
3665 if (!s_quiet)
3666 BIO_printf(bio_err, "KTLS SENDFILE '%s' OK\n", p);
3667
3668 break;
3669 }
3670 }
3671 } else
3672 #endif
3673 {
3674 for (;;) {
3675 i = BIO_read(file, buf, bufsize);
3676 if (i <= 0)
3677 break;
3678
3679 #ifdef RENEG
3680 total_bytes += i;
3681 BIO_printf(bio_err, "%d\n", i);
3682 if (total_bytes > 3 * 1024) {
3683 total_bytes = 0;
3684 BIO_printf(bio_err, "RENEGOTIATE\n");
3685 SSL_renegotiate(con);
3686 }
3687 #endif
3688
3689 for (j = 0; j < i;) {
3690 #ifdef RENEG
3691 static count = 0;
3692 if (++count == 13)
3693 SSL_renegotiate(con);
3694 #endif
3695 k = BIO_write(io, &(buf[j]), i - j);
3696 if (k <= 0) {
3697 if (!BIO_should_retry(io)
3698 && !SSL_waiting_for_async(con)) {
3699 goto write_error;
3700 } else {
3701 BIO_printf(bio_s_out, "rwrite W BLOCK\n");
3702 }
3703 } else {
3704 j += k;
3705 }
3706 }
3707 }
3708 }
3709 write_error:
3710 BIO_free(file);
3711 break;
3712 }
3713 }
3714
3715 for (;;) {
3716 i = (int)BIO_flush(io);
3717 if (i <= 0) {
3718 if (!BIO_should_retry(io))
3719 break;
3720 } else
3721 break;
3722 }
3723 end:
3724 /* make sure we reuse sessions */
3725 do_ssl_shutdown(con);
3726
3727 err:
3728 OPENSSL_free(buf);
3729 BIO_free(ssl_bio);
3730 BIO_free_all(io);
3731 BIO_free_all(edio);
3732 return ret;
3733 }
3734
rev_body(int s,int stype,int prot,unsigned char * context)3735 static int rev_body(int s, int stype, int prot, unsigned char *context)
3736 {
3737 char *buf = NULL;
3738 int i;
3739 int ret = 1;
3740 SSL *con;
3741 BIO *io, *ssl_bio, *sbio;
3742 #ifdef CHARSET_EBCDIC
3743 BIO *filter;
3744 #endif
3745
3746 /* as we use BIO_gets(), and it always null terminates data, we need
3747 * to allocate 1 byte longer buffer to fit the full 2^14 byte record */
3748 buf = app_malloc(bufsize + 1, "server rev buffer");
3749 io = BIO_new(BIO_f_buffer());
3750 ssl_bio = BIO_new(BIO_f_ssl());
3751 if ((io == NULL) || (ssl_bio == NULL))
3752 goto err;
3753
3754 /* lets make the output buffer a reasonable size */
3755 if (BIO_set_write_buffer_size(io, bufsize) <= 0)
3756 goto err;
3757
3758 if ((con = SSL_new(ctx)) == NULL)
3759 goto err;
3760
3761 if (s_tlsextdebug) {
3762 SSL_set_tlsext_debug_callback(con, tlsext_cb);
3763 SSL_set_tlsext_debug_arg(con, bio_s_out);
3764 }
3765 if (context != NULL
3766 && !SSL_set_session_id_context(con, context,
3767 strlen((char *)context))) {
3768 SSL_free(con);
3769 ERR_print_errors(bio_err);
3770 goto err;
3771 }
3772
3773 sbio = BIO_new_socket(s, BIO_NOCLOSE);
3774 if (sbio == NULL) {
3775 SSL_free(con);
3776 ERR_print_errors(bio_err);
3777 goto err;
3778 }
3779
3780 SSL_set_bio(con, sbio, sbio);
3781 SSL_set_accept_state(con);
3782
3783 /* No need to free |con| after this. Done by BIO_free(ssl_bio) */
3784 BIO_set_ssl(ssl_bio, con, BIO_CLOSE);
3785 BIO_push(io, ssl_bio);
3786 ssl_bio = NULL;
3787 #ifdef CHARSET_EBCDIC
3788 filter = BIO_new(BIO_f_ebcdic_filter());
3789 if (filter == NULL)
3790 goto err;
3791
3792 io = BIO_push(filter, io);
3793 #endif
3794
3795 if (s_debug) {
3796 BIO_set_callback_ex(SSL_get_rbio(con), bio_dump_callback);
3797 BIO_set_callback_arg(SSL_get_rbio(con), (char *)bio_s_out);
3798 }
3799 if (s_msg) {
3800 #ifndef OPENSSL_NO_SSL_TRACE
3801 if (s_msg == 2)
3802 SSL_set_msg_callback(con, SSL_trace);
3803 else
3804 #endif
3805 SSL_set_msg_callback(con, msg_cb);
3806 SSL_set_msg_callback_arg(con, bio_s_msg ? bio_s_msg : bio_s_out);
3807 }
3808
3809 for (;;) {
3810 i = BIO_do_handshake(io);
3811 if (i > 0)
3812 break;
3813 if (!BIO_should_retry(io)) {
3814 BIO_puts(bio_err, "CONNECTION FAILURE\n");
3815 ERR_print_errors(bio_err);
3816 goto end;
3817 }
3818 #ifndef OPENSSL_NO_SRP
3819 if (BIO_should_io_special(io)
3820 && BIO_get_retry_reason(io) == BIO_RR_SSL_X509_LOOKUP) {
3821 BIO_printf(bio_s_out, "LOOKUP renego during accept\n");
3822
3823 lookup_srp_user(&srp_callback_parm, bio_s_out);
3824
3825 continue;
3826 }
3827 #endif
3828 }
3829 BIO_printf(bio_err, "CONNECTION ESTABLISHED\n");
3830 print_ssl_summary(con);
3831
3832 for (;;) {
3833 i = BIO_gets(io, buf, bufsize + 1);
3834 if (i < 0) { /* error */
3835 if (!BIO_should_retry(io)) {
3836 if (!s_quiet)
3837 ERR_print_errors(bio_err);
3838 goto err;
3839 } else {
3840 BIO_printf(bio_s_out, "read R BLOCK\n");
3841 #ifndef OPENSSL_NO_SRP
3842 if (BIO_should_io_special(io)
3843 && BIO_get_retry_reason(io) == BIO_RR_SSL_X509_LOOKUP) {
3844 BIO_printf(bio_s_out, "LOOKUP renego during read\n");
3845
3846 lookup_srp_user(&srp_callback_parm, bio_s_out);
3847
3848 continue;
3849 }
3850 #endif
3851 OSSL_sleep(1000);
3852 continue;
3853 }
3854 } else if (i == 0) { /* end of input */
3855 ret = 1;
3856 BIO_printf(bio_err, "CONNECTION CLOSED\n");
3857 goto end;
3858 } else {
3859 char *p = buf + i - 1;
3860 while (i && (*p == '\n' || *p == '\r')) {
3861 p--;
3862 i--;
3863 }
3864 if (!s_ign_eof && i == 5 && HAS_PREFIX(buf, "CLOSE")) {
3865 ret = 1;
3866 BIO_printf(bio_err, "CONNECTION CLOSED\n");
3867 goto end;
3868 }
3869 BUF_reverse((unsigned char *)buf, NULL, i);
3870 buf[i] = '\n';
3871 BIO_write(io, buf, i + 1);
3872 for (;;) {
3873 i = BIO_flush(io);
3874 if (i > 0)
3875 break;
3876 if (!BIO_should_retry(io))
3877 goto end;
3878 }
3879 }
3880 }
3881 end:
3882 /* make sure we reuse sessions */
3883 do_ssl_shutdown(con);
3884
3885 err:
3886
3887 OPENSSL_free(buf);
3888 BIO_free(ssl_bio);
3889 BIO_free_all(io);
3890 return ret;
3891 }
3892
3893 #define MAX_SESSION_ID_ATTEMPTS 10
generate_session_id(SSL * ssl,unsigned char * id,unsigned int * id_len)3894 static int generate_session_id(SSL *ssl, unsigned char *id,
3895 unsigned int *id_len)
3896 {
3897 unsigned int count = 0;
3898 unsigned int session_id_prefix_len = strlen(session_id_prefix);
3899
3900 do {
3901 if (RAND_bytes(id, *id_len) <= 0)
3902 return 0;
3903 /*
3904 * Prefix the session_id with the required prefix. NB: If our prefix
3905 * is too long, clip it - but there will be worse effects anyway, eg.
3906 * the server could only possibly create 1 session ID (ie. the
3907 * prefix!) so all future session negotiations will fail due to
3908 * conflicts.
3909 */
3910 memcpy(id, session_id_prefix,
3911 (session_id_prefix_len < *id_len) ? session_id_prefix_len : *id_len);
3912 } while (SSL_has_matching_session_id(ssl, id, *id_len) && (++count < MAX_SESSION_ID_ATTEMPTS));
3913 if (count >= MAX_SESSION_ID_ATTEMPTS)
3914 return 0;
3915 return 1;
3916 }
3917
3918 /*
3919 * By default s_server uses an in-memory cache which caches SSL_SESSION
3920 * structures without any serialization. This hides some bugs which only
3921 * become apparent in deployed servers. By implementing a basic external
3922 * session cache some issues can be debugged using s_server.
3923 */
3924
3925 typedef struct simple_ssl_session_st {
3926 unsigned char *id;
3927 unsigned int idlen;
3928 unsigned char *der;
3929 int derlen;
3930 struct simple_ssl_session_st *next;
3931 } simple_ssl_session;
3932
3933 static simple_ssl_session *first = NULL;
3934
add_session(SSL * ssl,SSL_SESSION * session)3935 static int add_session(SSL *ssl, SSL_SESSION *session)
3936 {
3937 simple_ssl_session *sess = app_malloc(sizeof(*sess), "get session");
3938 unsigned char *p;
3939
3940 SSL_SESSION_get_id(session, &sess->idlen);
3941 sess->derlen = i2d_SSL_SESSION(session, NULL);
3942 if (sess->derlen < 0) {
3943 BIO_printf(bio_err, "Error encoding session\n");
3944 OPENSSL_free(sess);
3945 return 0;
3946 }
3947
3948 sess->id = OPENSSL_memdup(SSL_SESSION_get_id(session, NULL), sess->idlen);
3949 sess->der = app_malloc(sess->derlen, "get session buffer");
3950 if (!sess->id) {
3951 BIO_printf(bio_err, "Out of memory adding to external cache\n");
3952 OPENSSL_free(sess->id);
3953 OPENSSL_free(sess->der);
3954 OPENSSL_free(sess);
3955 return 0;
3956 }
3957 p = sess->der;
3958
3959 /* Assume it still works. */
3960 if (i2d_SSL_SESSION(session, &p) != sess->derlen) {
3961 BIO_printf(bio_err, "Unexpected session encoding length\n");
3962 OPENSSL_free(sess->id);
3963 OPENSSL_free(sess->der);
3964 OPENSSL_free(sess);
3965 return 0;
3966 }
3967
3968 sess->next = first;
3969 first = sess;
3970 BIO_printf(bio_err, "New session added to external cache\n");
3971 return 0;
3972 }
3973
get_session(SSL * ssl,const unsigned char * id,int idlen,int * do_copy)3974 static SSL_SESSION *get_session(SSL *ssl, const unsigned char *id, int idlen,
3975 int *do_copy)
3976 {
3977 simple_ssl_session *sess;
3978 *do_copy = 0;
3979 for (sess = first; sess; sess = sess->next) {
3980 if (idlen == (int)sess->idlen && !memcmp(sess->id, id, idlen)) {
3981 const unsigned char *p = sess->der;
3982 BIO_printf(bio_err, "Lookup session: cache hit\n");
3983 return d2i_SSL_SESSION_ex(NULL, &p, sess->derlen, app_get0_libctx(),
3984 app_get0_propq());
3985 }
3986 }
3987 BIO_printf(bio_err, "Lookup session: cache miss\n");
3988 return NULL;
3989 }
3990
del_session(SSL_CTX * sctx,SSL_SESSION * session)3991 static void del_session(SSL_CTX *sctx, SSL_SESSION *session)
3992 {
3993 simple_ssl_session *sess, *prev = NULL;
3994 const unsigned char *id;
3995 unsigned int idlen;
3996 id = SSL_SESSION_get_id(session, &idlen);
3997 for (sess = first; sess; sess = sess->next) {
3998 if (idlen == sess->idlen && !memcmp(sess->id, id, idlen)) {
3999 if (prev)
4000 prev->next = sess->next;
4001 else
4002 first = sess->next;
4003 OPENSSL_free(sess->id);
4004 OPENSSL_free(sess->der);
4005 OPENSSL_free(sess);
4006 return;
4007 }
4008 prev = sess;
4009 }
4010 }
4011
init_session_cache_ctx(SSL_CTX * sctx)4012 static void init_session_cache_ctx(SSL_CTX *sctx)
4013 {
4014 SSL_CTX_set_session_cache_mode(sctx,
4015 SSL_SESS_CACHE_NO_INTERNAL | SSL_SESS_CACHE_SERVER);
4016 SSL_CTX_sess_set_new_cb(sctx, add_session);
4017 SSL_CTX_sess_set_get_cb(sctx, get_session);
4018 SSL_CTX_sess_set_remove_cb(sctx, del_session);
4019 }
4020
free_sessions(void)4021 static void free_sessions(void)
4022 {
4023 simple_ssl_session *sess, *tsess;
4024 for (sess = first; sess;) {
4025 OPENSSL_free(sess->id);
4026 OPENSSL_free(sess->der);
4027 tsess = sess;
4028 sess = sess->next;
4029 OPENSSL_free(tsess);
4030 }
4031 first = NULL;
4032 }
4033
4034 #endif /* OPENSSL_NO_SOCK */
4035