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