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 <ctype.h>
13 #include <stdio.h>
14 #include <stdlib.h>
15 #include <string.h>
16 #if defined(_WIN32)
17 /* Included before async.h to avoid some warnings */
18 # include <windows.h>
19 #endif
20
21 #include <openssl/e_os2.h>
22 #include <openssl/async.h>
23 #include <openssl/ssl.h>
24 #include <openssl/decoder.h>
25
26 #ifndef OPENSSL_NO_SOCK
27
28 /*
29 * With IPv6, it looks like Digital has mixed up the proper order of
30 * recursive header file inclusion, resulting in the compiler complaining
31 * that u_int isn't defined, but only if _POSIX_C_SOURCE is defined, which is
32 * needed to have fileno() declared correctly... So let's define u_int
33 */
34 #if defined(OPENSSL_SYS_VMS_DECC) && !defined(__U_INT)
35 # define __U_INT
36 typedef unsigned int u_int;
37 #endif
38
39 #include <openssl/bn.h>
40 #include "apps.h"
41 #include "progs.h"
42 #include <openssl/err.h>
43 #include <openssl/pem.h>
44 #include <openssl/x509.h>
45 #include <openssl/ssl.h>
46 #include <openssl/rand.h>
47 #include <openssl/ocsp.h>
48 #ifndef OPENSSL_NO_DH
49 # include <openssl/dh.h>
50 #endif
51 #include <openssl/rsa.h>
52 #include "s_apps.h"
53 #include "timeouts.h"
54 #ifdef CHARSET_EBCDIC
55 #include <openssl/ebcdic.h>
56 #endif
57 #include "internal/sockets.h"
58
59 static int not_resumable_sess_cb(SSL *s, int is_forward_secure);
60 static int sv_body(int s, int stype, int prot, unsigned char *context);
61 static int www_body(int s, int stype, int prot, unsigned char *context);
62 static int rev_body(int s, int stype, int prot, unsigned char *context);
63 static void close_accept_socket(void);
64 static int init_ssl_connection(SSL *s);
65 static void print_stats(BIO *bp, SSL_CTX *ctx);
66 static int generate_session_id(SSL *ssl, unsigned char *id,
67 unsigned int *id_len);
68 static void init_session_cache_ctx(SSL_CTX *sctx);
69 static void free_sessions(void);
70 static void print_connection_info(SSL *con);
71
72 static const int bufsize = 16 * 1024;
73 static int accept_socket = -1;
74
75 #define TEST_CERT "server.pem"
76 #define TEST_CERT2 "server2.pem"
77
78 static int s_nbio = 0;
79 static int s_nbio_test = 0;
80 static int s_crlf = 0;
81 static SSL_CTX *ctx = NULL;
82 static SSL_CTX *ctx2 = NULL;
83 static int www = 0;
84
85 static BIO *bio_s_out = NULL;
86 static BIO *bio_s_msg = NULL;
87 static int s_debug = 0;
88 static int s_tlsextdebug = 0;
89 static int s_msg = 0;
90 static int s_quiet = 0;
91 static int s_ign_eof = 0;
92 static int s_brief = 0;
93
94 static char *keymatexportlabel = NULL;
95 static int keymatexportlen = 20;
96
97 static int async = 0;
98
99 static int use_sendfile = 0;
100
101 static const char *session_id_prefix = NULL;
102
103 #ifndef OPENSSL_NO_DTLS
104 static int enable_timeouts = 0;
105 static long socket_mtu;
106 #endif
107
108 /*
109 * We define this but make it always be 0 in no-dtls builds to simplify the
110 * code.
111 */
112 static int dtlslisten = 0;
113 static int stateless = 0;
114
115 static int early_data = 0;
116 static SSL_SESSION *psksess = NULL;
117
118 static char *psk_identity = "Client_identity";
119 char *psk_key = NULL; /* by default PSK is not used */
120
121 static char http_server_binmode = 0; /* for now: 0/1 = default/binary */
122
123 #ifndef OPENSSL_NO_PSK
psk_server_cb(SSL * ssl,const char * identity,unsigned char * psk,unsigned int max_psk_len)124 static unsigned int psk_server_cb(SSL *ssl, const char *identity,
125 unsigned char *psk,
126 unsigned int max_psk_len)
127 {
128 long key_len = 0;
129 unsigned char *key;
130
131 if (s_debug)
132 BIO_printf(bio_s_out, "psk_server_cb\n");
133
134 if (!SSL_is_dtls(ssl) && SSL_version(ssl) >= TLS1_3_VERSION) {
135 /*
136 * This callback is designed for use in (D)TLSv1.2 (or below). It is
137 * possible to use a single callback for all protocol versions - but it
138 * is preferred to use a dedicated callback for TLSv1.3. For TLSv1.3 we
139 * have psk_find_session_cb.
140 */
141 return 0;
142 }
143
144 if (identity == NULL) {
145 BIO_printf(bio_err, "Error: client did not send PSK identity\n");
146 goto out_err;
147 }
148 if (s_debug)
149 BIO_printf(bio_s_out, "identity_len=%d identity=%s\n",
150 (int)strlen(identity), identity);
151
152 /* here we could lookup the given identity e.g. from a database */
153 if (strcmp(identity, psk_identity) != 0) {
154 BIO_printf(bio_s_out, "PSK warning: client identity not what we expected"
155 " (got '%s' expected '%s')\n", identity, psk_identity);
156 } else {
157 if (s_debug)
158 BIO_printf(bio_s_out, "PSK client identity found\n");
159 }
160
161 /* convert the PSK key to binary */
162 key = OPENSSL_hexstr2buf(psk_key, &key_len);
163 if (key == NULL) {
164 BIO_printf(bio_err, "Could not convert PSK key '%s' to buffer\n",
165 psk_key);
166 return 0;
167 }
168 if (key_len > (int)max_psk_len) {
169 BIO_printf(bio_err,
170 "psk buffer of callback is too small (%d) for key (%ld)\n",
171 max_psk_len, key_len);
172 OPENSSL_free(key);
173 return 0;
174 }
175
176 memcpy(psk, key, key_len);
177 OPENSSL_free(key);
178
179 if (s_debug)
180 BIO_printf(bio_s_out, "fetched PSK len=%ld\n", key_len);
181 return key_len;
182 out_err:
183 if (s_debug)
184 BIO_printf(bio_err, "Error in PSK server callback\n");
185 (void)BIO_flush(bio_err);
186 (void)BIO_flush(bio_s_out);
187 return 0;
188 }
189 #endif
190
psk_find_session_cb(SSL * ssl,const unsigned char * identity,size_t identity_len,SSL_SESSION ** sess)191 static int psk_find_session_cb(SSL *ssl, const unsigned char *identity,
192 size_t identity_len, SSL_SESSION **sess)
193 {
194 SSL_SESSION *tmpsess = NULL;
195 unsigned char *key;
196 long key_len;
197 const SSL_CIPHER *cipher = NULL;
198
199 if (strlen(psk_identity) != identity_len
200 || memcmp(psk_identity, identity, identity_len) != 0) {
201 *sess = NULL;
202 return 1;
203 }
204
205 if (psksess != NULL) {
206 SSL_SESSION_up_ref(psksess);
207 *sess = psksess;
208 return 1;
209 }
210
211 key = OPENSSL_hexstr2buf(psk_key, &key_len);
212 if (key == NULL) {
213 BIO_printf(bio_err, "Could not convert PSK key '%s' to buffer\n",
214 psk_key);
215 return 0;
216 }
217
218 /* We default to SHA256 */
219 cipher = SSL_CIPHER_find(ssl, tls13_aes128gcmsha256_id);
220 if (cipher == NULL) {
221 BIO_printf(bio_err, "Error finding suitable ciphersuite\n");
222 OPENSSL_free(key);
223 return 0;
224 }
225
226 tmpsess = SSL_SESSION_new();
227 if (tmpsess == NULL
228 || !SSL_SESSION_set1_master_key(tmpsess, key, key_len)
229 || !SSL_SESSION_set_cipher(tmpsess, cipher)
230 || !SSL_SESSION_set_protocol_version(tmpsess, SSL_version(ssl))) {
231 OPENSSL_free(key);
232 SSL_SESSION_free(tmpsess);
233 return 0;
234 }
235 OPENSSL_free(key);
236 *sess = tmpsess;
237
238 return 1;
239 }
240
241 #ifndef OPENSSL_NO_SRP
242 static srpsrvparm srp_callback_parm;
243 #endif
244
245 static int local_argc = 0;
246 static char **local_argv;
247
248 #ifdef CHARSET_EBCDIC
249 static int ebcdic_new(BIO *bi);
250 static int ebcdic_free(BIO *a);
251 static int ebcdic_read(BIO *b, char *out, int outl);
252 static int ebcdic_write(BIO *b, const char *in, int inl);
253 static long ebcdic_ctrl(BIO *b, int cmd, long num, void *ptr);
254 static int ebcdic_gets(BIO *bp, char *buf, int size);
255 static int ebcdic_puts(BIO *bp, const char *str);
256
257 # define BIO_TYPE_EBCDIC_FILTER (18|0x0200)
258 static BIO_METHOD *methods_ebcdic = NULL;
259
260 /* This struct is "unwarranted chumminess with the compiler." */
261 typedef struct {
262 size_t alloced;
263 char buff[1];
264 } EBCDIC_OUTBUFF;
265
BIO_f_ebcdic_filter()266 static const BIO_METHOD *BIO_f_ebcdic_filter()
267 {
268 if (methods_ebcdic == NULL) {
269 methods_ebcdic = BIO_meth_new(BIO_TYPE_EBCDIC_FILTER,
270 "EBCDIC/ASCII filter");
271 if (methods_ebcdic == NULL
272 || !BIO_meth_set_write(methods_ebcdic, ebcdic_write)
273 || !BIO_meth_set_read(methods_ebcdic, ebcdic_read)
274 || !BIO_meth_set_puts(methods_ebcdic, ebcdic_puts)
275 || !BIO_meth_set_gets(methods_ebcdic, ebcdic_gets)
276 || !BIO_meth_set_ctrl(methods_ebcdic, ebcdic_ctrl)
277 || !BIO_meth_set_create(methods_ebcdic, ebcdic_new)
278 || !BIO_meth_set_destroy(methods_ebcdic, ebcdic_free))
279 return NULL;
280 }
281 return methods_ebcdic;
282 }
283
ebcdic_new(BIO * bi)284 static int ebcdic_new(BIO *bi)
285 {
286 EBCDIC_OUTBUFF *wbuf;
287
288 wbuf = app_malloc(sizeof(*wbuf) + 1024, "ebcdic wbuf");
289 wbuf->alloced = 1024;
290 wbuf->buff[0] = '\0';
291
292 BIO_set_data(bi, wbuf);
293 BIO_set_init(bi, 1);
294 return 1;
295 }
296
ebcdic_free(BIO * a)297 static int ebcdic_free(BIO *a)
298 {
299 EBCDIC_OUTBUFF *wbuf;
300
301 if (a == NULL)
302 return 0;
303 wbuf = BIO_get_data(a);
304 OPENSSL_free(wbuf);
305 BIO_set_data(a, NULL);
306 BIO_set_init(a, 0);
307
308 return 1;
309 }
310
ebcdic_read(BIO * b,char * out,int outl)311 static int ebcdic_read(BIO *b, char *out, int outl)
312 {
313 int ret = 0;
314 BIO *next = BIO_next(b);
315
316 if (out == NULL || outl == 0)
317 return 0;
318 if (next == NULL)
319 return 0;
320
321 ret = BIO_read(next, out, outl);
322 if (ret > 0)
323 ascii2ebcdic(out, out, ret);
324 return ret;
325 }
326
ebcdic_write(BIO * b,const char * in,int inl)327 static int ebcdic_write(BIO *b, const char *in, int inl)
328 {
329 EBCDIC_OUTBUFF *wbuf;
330 BIO *next = BIO_next(b);
331 int ret = 0;
332 int num;
333
334 if ((in == NULL) || (inl <= 0))
335 return 0;
336 if (next == NULL)
337 return 0;
338
339 wbuf = (EBCDIC_OUTBUFF *) BIO_get_data(b);
340
341 if (inl > (num = wbuf->alloced)) {
342 num = num + num; /* double the size */
343 if (num < inl)
344 num = inl;
345 OPENSSL_free(wbuf);
346 wbuf = app_malloc(sizeof(*wbuf) + num, "grow ebcdic wbuf");
347
348 wbuf->alloced = num;
349 wbuf->buff[0] = '\0';
350
351 BIO_set_data(b, wbuf);
352 }
353
354 ebcdic2ascii(wbuf->buff, in, inl);
355
356 ret = BIO_write(next, wbuf->buff, inl);
357
358 return ret;
359 }
360
ebcdic_ctrl(BIO * b,int cmd,long num,void * ptr)361 static long ebcdic_ctrl(BIO *b, int cmd, long num, void *ptr)
362 {
363 long ret;
364 BIO *next = BIO_next(b);
365
366 if (next == NULL)
367 return 0;
368 switch (cmd) {
369 case BIO_CTRL_DUP:
370 ret = 0L;
371 break;
372 default:
373 ret = BIO_ctrl(next, cmd, num, ptr);
374 break;
375 }
376 return ret;
377 }
378
ebcdic_gets(BIO * bp,char * buf,int size)379 static int ebcdic_gets(BIO *bp, char *buf, int size)
380 {
381 int i, ret = 0;
382 BIO *next = BIO_next(bp);
383
384 if (next == NULL)
385 return 0;
386 /* return(BIO_gets(bp->next_bio,buf,size));*/
387 for (i = 0; i < size - 1; ++i) {
388 ret = ebcdic_read(bp, &buf[i], 1);
389 if (ret <= 0)
390 break;
391 else if (buf[i] == '\n') {
392 ++i;
393 break;
394 }
395 }
396 if (i < size)
397 buf[i] = '\0';
398 return (ret < 0 && i == 0) ? ret : i;
399 }
400
ebcdic_puts(BIO * bp,const char * str)401 static int ebcdic_puts(BIO *bp, const char *str)
402 {
403 if (BIO_next(bp) == NULL)
404 return 0;
405 return ebcdic_write(bp, str, strlen(str));
406 }
407 #endif
408
409 /* This is a context that we pass to callbacks */
410 typedef struct tlsextctx_st {
411 char *servername;
412 BIO *biodebug;
413 int extension_error;
414 } tlsextctx;
415
ssl_servername_cb(SSL * s,int * ad,void * arg)416 static int ssl_servername_cb(SSL *s, int *ad, void *arg)
417 {
418 tlsextctx *p = (tlsextctx *) arg;
419 const char *servername = SSL_get_servername(s, TLSEXT_NAMETYPE_host_name);
420
421 if (servername != NULL && p->biodebug != NULL) {
422 const char *cp = servername;
423 unsigned char uc;
424
425 BIO_printf(p->biodebug, "Hostname in TLS extension: \"");
426 while ((uc = *cp++) != 0)
427 BIO_printf(p->biodebug,
428 (((uc) & ~127) == 0) && isprint(uc) ? "%c" : "\\x%02x", uc);
429 BIO_printf(p->biodebug, "\"\n");
430 }
431
432 if (p->servername == NULL)
433 return SSL_TLSEXT_ERR_NOACK;
434
435 if (servername != NULL) {
436 if (OPENSSL_strcasecmp(servername, p->servername))
437 return p->extension_error;
438 if (ctx2 != NULL) {
439 BIO_printf(p->biodebug, "Switching server context.\n");
440 SSL_set_SSL_CTX(s, ctx2);
441 }
442 }
443 return SSL_TLSEXT_ERR_OK;
444 }
445
446 /* Structure passed to cert status callback */
447 typedef struct tlsextstatusctx_st {
448 int timeout;
449 /* File to load OCSP Response from (or NULL if no file) */
450 char *respin;
451 /* Default responder to use */
452 char *host, *path, *port;
453 char *proxy, *no_proxy;
454 int use_ssl;
455 int verbose;
456 } tlsextstatusctx;
457
458 static tlsextstatusctx tlscstatp = { -1 };
459
460 #ifndef OPENSSL_NO_OCSP
461
462 /*
463 * Helper function to get an OCSP_RESPONSE from a responder. This is a
464 * simplified version. It examines certificates each time and makes one OCSP
465 * responder query for each request. A full version would store details such as
466 * the OCSP certificate IDs and minimise the number of OCSP responses by caching
467 * them until they were considered "expired".
468 */
get_ocsp_resp_from_responder(SSL * s,tlsextstatusctx * srctx,OCSP_RESPONSE ** resp)469 static int get_ocsp_resp_from_responder(SSL *s, tlsextstatusctx *srctx,
470 OCSP_RESPONSE **resp)
471 {
472 char *host = NULL, *port = NULL, *path = NULL;
473 char *proxy = NULL, *no_proxy = NULL;
474 int use_ssl;
475 STACK_OF(OPENSSL_STRING) *aia = NULL;
476 X509 *x = NULL;
477 X509_STORE_CTX *inctx = NULL;
478 X509_OBJECT *obj;
479 OCSP_REQUEST *req = NULL;
480 OCSP_CERTID *id = NULL;
481 STACK_OF(X509_EXTENSION) *exts;
482 int ret = SSL_TLSEXT_ERR_NOACK;
483 int i;
484
485 /* Build up OCSP query from server certificate */
486 x = SSL_get_certificate(s);
487 aia = X509_get1_ocsp(x);
488 if (aia != NULL) {
489 if (!OSSL_HTTP_parse_url(sk_OPENSSL_STRING_value(aia, 0), &use_ssl,
490 NULL, &host, &port, NULL, &path, NULL, NULL)) {
491 BIO_puts(bio_err, "cert_status: can't parse AIA URL\n");
492 goto err;
493 }
494 if (srctx->verbose)
495 BIO_printf(bio_err, "cert_status: AIA URL: %s\n",
496 sk_OPENSSL_STRING_value(aia, 0));
497 } else {
498 if (srctx->host == NULL) {
499 BIO_puts(bio_err,
500 "cert_status: no AIA and no default responder URL\n");
501 goto done;
502 }
503 host = srctx->host;
504 path = srctx->path;
505 port = srctx->port;
506 use_ssl = srctx->use_ssl;
507 }
508 proxy = srctx->proxy;
509 no_proxy = srctx->no_proxy;
510
511 inctx = X509_STORE_CTX_new();
512 if (inctx == NULL)
513 goto err;
514 if (!X509_STORE_CTX_init(inctx,
515 SSL_CTX_get_cert_store(SSL_get_SSL_CTX(s)),
516 NULL, NULL))
517 goto err;
518 obj = X509_STORE_CTX_get_obj_by_subject(inctx, X509_LU_X509,
519 X509_get_issuer_name(x));
520 if (obj == NULL) {
521 BIO_puts(bio_err, "cert_status: Can't retrieve issuer certificate.\n");
522 goto done;
523 }
524 id = OCSP_cert_to_id(NULL, x, X509_OBJECT_get0_X509(obj));
525 X509_OBJECT_free(obj);
526 if (id == NULL)
527 goto err;
528 req = OCSP_REQUEST_new();
529 if (req == NULL)
530 goto err;
531 if (!OCSP_request_add0_id(req, id))
532 goto err;
533 id = NULL;
534 /* Add any extensions to the request */
535 SSL_get_tlsext_status_exts(s, &exts);
536 for (i = 0; i < sk_X509_EXTENSION_num(exts); i++) {
537 X509_EXTENSION *ext = sk_X509_EXTENSION_value(exts, i);
538 if (!OCSP_REQUEST_add_ext(req, ext, -1))
539 goto err;
540 }
541 *resp = process_responder(req, host, port, path, proxy, no_proxy,
542 use_ssl, NULL /* headers */, srctx->timeout);
543 if (*resp == NULL) {
544 BIO_puts(bio_err, "cert_status: error querying responder\n");
545 goto done;
546 }
547
548 ret = SSL_TLSEXT_ERR_OK;
549 goto done;
550
551 err:
552 ret = SSL_TLSEXT_ERR_ALERT_FATAL;
553 done:
554 /*
555 * If we parsed aia we need to free; otherwise they were copied and we
556 * don't
557 */
558 if (aia != NULL) {
559 OPENSSL_free(host);
560 OPENSSL_free(path);
561 OPENSSL_free(port);
562 X509_email_free(aia);
563 }
564 OCSP_CERTID_free(id);
565 OCSP_REQUEST_free(req);
566 X509_STORE_CTX_free(inctx);
567 return ret;
568 }
569
570 /*
571 * Certificate Status callback. This is called when a client includes a
572 * certificate status request extension. The response is either obtained from a
573 * file, or from an OCSP responder.
574 */
cert_status_cb(SSL * s,void * arg)575 static int cert_status_cb(SSL *s, void *arg)
576 {
577 tlsextstatusctx *srctx = arg;
578 OCSP_RESPONSE *resp = NULL;
579 unsigned char *rspder = NULL;
580 int rspderlen;
581 int ret = SSL_TLSEXT_ERR_ALERT_FATAL;
582
583 if (srctx->verbose)
584 BIO_puts(bio_err, "cert_status: callback called\n");
585
586 if (srctx->respin != NULL) {
587 BIO *derbio = bio_open_default(srctx->respin, 'r', FORMAT_ASN1);
588 if (derbio == NULL) {
589 BIO_puts(bio_err, "cert_status: Cannot open OCSP response file\n");
590 goto err;
591 }
592 resp = d2i_OCSP_RESPONSE_bio(derbio, NULL);
593 BIO_free(derbio);
594 if (resp == NULL) {
595 BIO_puts(bio_err, "cert_status: Error reading OCSP response\n");
596 goto err;
597 }
598 } else {
599 ret = get_ocsp_resp_from_responder(s, srctx, &resp);
600 if (ret != SSL_TLSEXT_ERR_OK)
601 goto err;
602 }
603
604 rspderlen = i2d_OCSP_RESPONSE(resp, &rspder);
605 if (rspderlen <= 0)
606 goto err;
607
608 SSL_set_tlsext_status_ocsp_resp(s, rspder, rspderlen);
609 if (srctx->verbose) {
610 BIO_puts(bio_err, "cert_status: ocsp response sent:\n");
611 OCSP_RESPONSE_print(bio_err, resp, 2);
612 }
613
614 ret = SSL_TLSEXT_ERR_OK;
615
616 err:
617 if (ret != SSL_TLSEXT_ERR_OK)
618 ERR_print_errors(bio_err);
619
620 OCSP_RESPONSE_free(resp);
621
622 return ret;
623 }
624 #endif
625
626 #ifndef OPENSSL_NO_NEXTPROTONEG
627 /* This is the context that we pass to next_proto_cb */
628 typedef struct tlsextnextprotoctx_st {
629 unsigned char *data;
630 size_t len;
631 } tlsextnextprotoctx;
632
next_proto_cb(SSL * s,const unsigned char ** data,unsigned int * len,void * arg)633 static int next_proto_cb(SSL *s, const unsigned char **data,
634 unsigned int *len, void *arg)
635 {
636 tlsextnextprotoctx *next_proto = arg;
637
638 *data = next_proto->data;
639 *len = next_proto->len;
640
641 return SSL_TLSEXT_ERR_OK;
642 }
643 #endif /* ndef OPENSSL_NO_NEXTPROTONEG */
644
645 /* This the context that we pass to alpn_cb */
646 typedef struct tlsextalpnctx_st {
647 unsigned char *data;
648 size_t len;
649 } tlsextalpnctx;
650
alpn_cb(SSL * s,const unsigned char ** out,unsigned char * outlen,const unsigned char * in,unsigned int inlen,void * arg)651 static int alpn_cb(SSL *s, const unsigned char **out, unsigned char *outlen,
652 const unsigned char *in, unsigned int inlen, void *arg)
653 {
654 tlsextalpnctx *alpn_ctx = arg;
655
656 if (!s_quiet) {
657 /* We can assume that |in| is syntactically valid. */
658 unsigned int i;
659 BIO_printf(bio_s_out, "ALPN protocols advertised by the client: ");
660 for (i = 0; i < inlen;) {
661 if (i)
662 BIO_write(bio_s_out, ", ", 2);
663 BIO_write(bio_s_out, &in[i + 1], in[i]);
664 i += in[i] + 1;
665 }
666 BIO_write(bio_s_out, "\n", 1);
667 }
668
669 if (SSL_select_next_proto
670 ((unsigned char **)out, outlen, alpn_ctx->data, alpn_ctx->len, in,
671 inlen) != OPENSSL_NPN_NEGOTIATED) {
672 return SSL_TLSEXT_ERR_ALERT_FATAL;
673 }
674
675 if (!s_quiet) {
676 BIO_printf(bio_s_out, "ALPN protocols selected: ");
677 BIO_write(bio_s_out, *out, *outlen);
678 BIO_write(bio_s_out, "\n", 1);
679 }
680
681 return SSL_TLSEXT_ERR_OK;
682 }
683
not_resumable_sess_cb(SSL * s,int is_forward_secure)684 static int not_resumable_sess_cb(SSL *s, int is_forward_secure)
685 {
686 /* disable resumption for sessions with forward secure ciphers */
687 return is_forward_secure;
688 }
689
690 typedef enum OPTION_choice {
691 OPT_COMMON,
692 OPT_ENGINE,
693 OPT_4, OPT_6, OPT_ACCEPT, OPT_PORT, OPT_UNIX, OPT_UNLINK, OPT_NACCEPT,
694 OPT_VERIFY, OPT_NAMEOPT, OPT_UPPER_V_VERIFY, OPT_CONTEXT, OPT_CERT, OPT_CRL,
695 OPT_CRL_DOWNLOAD, OPT_SERVERINFO, OPT_CERTFORM, OPT_KEY, OPT_KEYFORM,
696 OPT_PASS, OPT_CERT_CHAIN, OPT_DHPARAM, OPT_DCERTFORM, OPT_DCERT,
697 OPT_DKEYFORM, OPT_DPASS, OPT_DKEY, OPT_DCERT_CHAIN, OPT_NOCERT,
698 OPT_CAPATH, OPT_NOCAPATH, OPT_CHAINCAPATH, OPT_VERIFYCAPATH, OPT_NO_CACHE,
699 OPT_EXT_CACHE, OPT_CRLFORM, OPT_VERIFY_RET_ERROR, OPT_VERIFY_QUIET,
700 OPT_BUILD_CHAIN, OPT_CAFILE, OPT_NOCAFILE, OPT_CHAINCAFILE,
701 OPT_VERIFYCAFILE,
702 OPT_CASTORE, OPT_NOCASTORE, OPT_CHAINCASTORE, OPT_VERIFYCASTORE,
703 OPT_NBIO, OPT_NBIO_TEST, OPT_IGN_EOF, OPT_NO_IGN_EOF,
704 OPT_DEBUG, OPT_TLSEXTDEBUG, OPT_STATUS, OPT_STATUS_VERBOSE,
705 OPT_STATUS_TIMEOUT, OPT_PROXY, OPT_NO_PROXY, OPT_STATUS_URL,
706 OPT_STATUS_FILE, OPT_MSG, OPT_MSGFILE,
707 OPT_TRACE, OPT_SECURITY_DEBUG, OPT_SECURITY_DEBUG_VERBOSE, OPT_STATE,
708 OPT_CRLF, OPT_QUIET, OPT_BRIEF, OPT_NO_DHE,
709 OPT_NO_RESUME_EPHEMERAL, OPT_PSK_IDENTITY, OPT_PSK_HINT, OPT_PSK,
710 OPT_PSK_SESS, OPT_SRPVFILE, OPT_SRPUSERSEED, OPT_REV, OPT_WWW,
711 OPT_UPPER_WWW, OPT_HTTP, OPT_ASYNC, OPT_SSL_CONFIG,
712 OPT_MAX_SEND_FRAG, OPT_SPLIT_SEND_FRAG, OPT_MAX_PIPELINES, OPT_READ_BUF,
713 OPT_SSL3, OPT_TLS1_3, OPT_TLS1_2, OPT_TLS1_1, OPT_TLS1, OPT_DTLS, OPT_DTLS1,
714 OPT_DTLS1_2, OPT_SCTP, OPT_TIMEOUT, OPT_MTU, OPT_LISTEN, OPT_STATELESS,
715 OPT_ID_PREFIX, OPT_SERVERNAME, OPT_SERVERNAME_FATAL,
716 OPT_CERT2, OPT_KEY2, OPT_NEXTPROTONEG, OPT_ALPN, OPT_SENDFILE,
717 OPT_SRTP_PROFILES, OPT_KEYMATEXPORT, OPT_KEYMATEXPORTLEN,
718 OPT_KEYLOG_FILE, OPT_MAX_EARLY, OPT_RECV_MAX_EARLY, OPT_EARLY_DATA,
719 OPT_S_NUM_TICKETS, OPT_ANTI_REPLAY, OPT_NO_ANTI_REPLAY, OPT_SCTP_LABEL_BUG,
720 OPT_HTTP_SERVER_BINMODE, OPT_NOCANAMES, OPT_IGNORE_UNEXPECTED_EOF,
721 OPT_R_ENUM,
722 OPT_S_ENUM,
723 OPT_V_ENUM,
724 OPT_X_ENUM,
725 OPT_PROV_ENUM
726 } OPTION_CHOICE;
727
728 const OPTIONS s_server_options[] = {
729 OPT_SECTION("General"),
730 {"help", OPT_HELP, '-', "Display this summary"},
731 {"ssl_config", OPT_SSL_CONFIG, 's',
732 "Configure SSL_CTX using the given configuration value"},
733 #ifndef OPENSSL_NO_SSL_TRACE
734 {"trace", OPT_TRACE, '-', "trace protocol messages"},
735 #endif
736 #ifndef OPENSSL_NO_ENGINE
737 {"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"},
738 #endif
739
740 OPT_SECTION("Network"),
741 {"port", OPT_PORT, 'p',
742 "TCP/IP port to listen on for connections (default is " PORT ")"},
743 {"accept", OPT_ACCEPT, 's',
744 "TCP/IP optional host and port to listen on for connections (default is *:" PORT ")"},
745 #ifdef AF_UNIX
746 {"unix", OPT_UNIX, 's', "Unix domain socket to accept on"},
747 {"unlink", OPT_UNLINK, '-', "For -unix, unlink existing socket first"},
748 #endif
749 {"4", OPT_4, '-', "Use IPv4 only"},
750 {"6", OPT_6, '-', "Use IPv6 only"},
751
752 OPT_SECTION("Identity"),
753 {"context", OPT_CONTEXT, 's', "Set session ID context"},
754 {"CAfile", OPT_CAFILE, '<', "PEM format file of CA's"},
755 {"CApath", OPT_CAPATH, '/', "PEM format directory of CA's"},
756 {"CAstore", OPT_CASTORE, ':', "URI to store of CA's"},
757 {"no-CAfile", OPT_NOCAFILE, '-',
758 "Do not load the default certificates file"},
759 {"no-CApath", OPT_NOCAPATH, '-',
760 "Do not load certificates from the default certificates directory"},
761 {"no-CAstore", OPT_NOCASTORE, '-',
762 "Do not load certificates from the default certificates store URI"},
763 {"nocert", OPT_NOCERT, '-', "Don't use any certificates (Anon-DH)"},
764 {"verify", OPT_VERIFY, 'n', "Turn on peer certificate verification"},
765 {"Verify", OPT_UPPER_V_VERIFY, 'n',
766 "Turn on peer certificate verification, must have a cert"},
767 {"nameopt", OPT_NAMEOPT, 's', "Certificate subject/issuer name printing options"},
768 {"cert", OPT_CERT, '<', "Server certificate file to use; default " TEST_CERT},
769 {"cert2", OPT_CERT2, '<',
770 "Certificate file to use for servername; default " TEST_CERT2},
771 {"certform", OPT_CERTFORM, 'F',
772 "Server certificate file format (PEM/DER/P12); has no effect"},
773 {"cert_chain", OPT_CERT_CHAIN, '<',
774 "Server certificate chain file in PEM format"},
775 {"build_chain", OPT_BUILD_CHAIN, '-', "Build server certificate chain"},
776 {"serverinfo", OPT_SERVERINFO, 's',
777 "PEM serverinfo file for certificate"},
778 {"key", OPT_KEY, 's',
779 "Private key file to use; default is -cert file or else" TEST_CERT},
780 {"key2", OPT_KEY2, '<',
781 "-Private Key file to use for servername if not in -cert2"},
782 {"keyform", OPT_KEYFORM, 'f', "Key format (ENGINE, other values ignored)"},
783 {"pass", OPT_PASS, 's', "Private key and cert file pass phrase source"},
784 {"dcert", OPT_DCERT, '<',
785 "Second server certificate file to use (usually for DSA)"},
786 {"dcertform", OPT_DCERTFORM, 'F',
787 "Second server certificate file format (PEM/DER/P12); has no effect"},
788 {"dcert_chain", OPT_DCERT_CHAIN, '<',
789 "second server certificate chain file in PEM format"},
790 {"dkey", OPT_DKEY, '<',
791 "Second private key file to use (usually for DSA)"},
792 {"dkeyform", OPT_DKEYFORM, 'f',
793 "Second key file format (ENGINE, other values ignored)"},
794 {"dpass", OPT_DPASS, 's',
795 "Second private key and cert file pass phrase source"},
796 {"dhparam", OPT_DHPARAM, '<', "DH parameters file to use"},
797 {"servername", OPT_SERVERNAME, 's',
798 "Servername for HostName TLS extension"},
799 {"servername_fatal", OPT_SERVERNAME_FATAL, '-',
800 "On servername mismatch send fatal alert (default warning alert)"},
801 {"nbio_test", OPT_NBIO_TEST, '-', "Test with the non-blocking test bio"},
802 {"crlf", OPT_CRLF, '-', "Convert LF from terminal into CRLF"},
803 {"quiet", OPT_QUIET, '-', "No server output"},
804 {"no_resume_ephemeral", OPT_NO_RESUME_EPHEMERAL, '-',
805 "Disable caching and tickets if ephemeral (EC)DH is used"},
806 {"www", OPT_WWW, '-', "Respond to a 'GET /' with a status page"},
807 {"WWW", OPT_UPPER_WWW, '-', "Respond to a 'GET with the file ./path"},
808 {"ignore_unexpected_eof", OPT_IGNORE_UNEXPECTED_EOF, '-',
809 "Do not treat lack of close_notify from a peer as an error"},
810 {"tlsextdebug", OPT_TLSEXTDEBUG, '-',
811 "Hex dump of all TLS extensions received"},
812 {"HTTP", OPT_HTTP, '-', "Like -WWW but ./path includes HTTP headers"},
813 {"id_prefix", OPT_ID_PREFIX, 's',
814 "Generate SSL/TLS session IDs prefixed by arg"},
815 {"keymatexport", OPT_KEYMATEXPORT, 's',
816 "Export keying material using label"},
817 {"keymatexportlen", OPT_KEYMATEXPORTLEN, 'p',
818 "Export len bytes of keying material; default 20"},
819 {"CRL", OPT_CRL, '<', "CRL file to use"},
820 {"CRLform", OPT_CRLFORM, 'F', "CRL file format (PEM or DER); default PEM"},
821 {"crl_download", OPT_CRL_DOWNLOAD, '-',
822 "Download CRLs from distribution points in certificate CDP entries"},
823 {"chainCAfile", OPT_CHAINCAFILE, '<',
824 "CA file for certificate chain (PEM format)"},
825 {"chainCApath", OPT_CHAINCAPATH, '/',
826 "use dir as certificate store path to build CA certificate chain"},
827 {"chainCAstore", OPT_CHAINCASTORE, ':',
828 "use URI as certificate store to build CA certificate chain"},
829 {"verifyCAfile", OPT_VERIFYCAFILE, '<',
830 "CA file for certificate verification (PEM format)"},
831 {"verifyCApath", OPT_VERIFYCAPATH, '/',
832 "use dir as certificate store path to verify CA certificate"},
833 {"verifyCAstore", OPT_VERIFYCASTORE, ':',
834 "use URI as certificate store to verify CA certificate"},
835 {"no_cache", OPT_NO_CACHE, '-', "Disable session cache"},
836 {"ext_cache", OPT_EXT_CACHE, '-',
837 "Disable internal cache, set up and use external cache"},
838 {"verify_return_error", OPT_VERIFY_RET_ERROR, '-',
839 "Close connection on verification error"},
840 {"verify_quiet", OPT_VERIFY_QUIET, '-',
841 "No verify output except verify errors"},
842 {"ign_eof", OPT_IGN_EOF, '-', "Ignore input EOF (default when -quiet)"},
843 {"no_ign_eof", OPT_NO_IGN_EOF, '-', "Do not ignore input EOF"},
844
845 #ifndef OPENSSL_NO_OCSP
846 OPT_SECTION("OCSP"),
847 {"status", OPT_STATUS, '-', "Request certificate status from server"},
848 {"status_verbose", OPT_STATUS_VERBOSE, '-',
849 "Print more output in certificate status callback"},
850 {"status_timeout", OPT_STATUS_TIMEOUT, 'n',
851 "Status request responder timeout"},
852 {"status_url", OPT_STATUS_URL, 's', "Status request fallback URL"},
853 {"proxy", OPT_PROXY, 's',
854 "[http[s]://]host[:port][/path] of HTTP(S) proxy to use; path is ignored"},
855 {"no_proxy", OPT_NO_PROXY, 's',
856 "List of addresses of servers not to use HTTP(S) proxy for"},
857 {OPT_MORE_STR, 0, 0,
858 "Default from environment variable 'no_proxy', else 'NO_PROXY', else none"},
859 {"status_file", OPT_STATUS_FILE, '<',
860 "File containing DER encoded OCSP Response"},
861 #endif
862
863 OPT_SECTION("Debug"),
864 {"security_debug", OPT_SECURITY_DEBUG, '-',
865 "Print output from SSL/TLS security framework"},
866 {"security_debug_verbose", OPT_SECURITY_DEBUG_VERBOSE, '-',
867 "Print more output from SSL/TLS security framework"},
868 {"brief", OPT_BRIEF, '-',
869 "Restrict output to brief summary of connection parameters"},
870 {"rev", OPT_REV, '-',
871 "act as an echo server that sends back received text reversed"},
872 {"debug", OPT_DEBUG, '-', "Print more output"},
873 {"msg", OPT_MSG, '-', "Show protocol messages"},
874 {"msgfile", OPT_MSGFILE, '>',
875 "File to send output of -msg or -trace, instead of stdout"},
876 {"state", OPT_STATE, '-', "Print the SSL states"},
877 {"async", OPT_ASYNC, '-', "Operate in asynchronous mode"},
878 {"max_pipelines", OPT_MAX_PIPELINES, 'p',
879 "Maximum number of encrypt/decrypt pipelines to be used"},
880 {"naccept", OPT_NACCEPT, 'p', "Terminate after #num connections"},
881 {"keylogfile", OPT_KEYLOG_FILE, '>', "Write TLS secrets to file"},
882
883 OPT_SECTION("Network"),
884 {"nbio", OPT_NBIO, '-', "Use non-blocking IO"},
885 {"timeout", OPT_TIMEOUT, '-', "Enable timeouts"},
886 {"mtu", OPT_MTU, 'p', "Set link-layer MTU"},
887 {"read_buf", OPT_READ_BUF, 'p',
888 "Default read buffer size to be used for connections"},
889 {"split_send_frag", OPT_SPLIT_SEND_FRAG, 'p',
890 "Size used to split data for encrypt pipelines"},
891 {"max_send_frag", OPT_MAX_SEND_FRAG, 'p', "Maximum Size of send frames "},
892
893 OPT_SECTION("Server identity"),
894 {"psk_identity", OPT_PSK_IDENTITY, 's', "PSK identity to expect"},
895 #ifndef OPENSSL_NO_PSK
896 {"psk_hint", OPT_PSK_HINT, 's', "PSK identity hint to use"},
897 #endif
898 {"psk", OPT_PSK, 's', "PSK in hex (without 0x)"},
899 {"psk_session", OPT_PSK_SESS, '<', "File to read PSK SSL session from"},
900 #ifndef OPENSSL_NO_SRP
901 {"srpvfile", OPT_SRPVFILE, '<', "(deprecated) The verifier file for SRP"},
902 {"srpuserseed", OPT_SRPUSERSEED, 's',
903 "(deprecated) A seed string for a default user salt"},
904 #endif
905
906 OPT_SECTION("Protocol and version"),
907 {"max_early_data", OPT_MAX_EARLY, 'n',
908 "The maximum number of bytes of early data as advertised in tickets"},
909 {"recv_max_early_data", OPT_RECV_MAX_EARLY, 'n',
910 "The maximum number of bytes of early data (hard limit)"},
911 {"early_data", OPT_EARLY_DATA, '-', "Attempt to read early data"},
912 {"num_tickets", OPT_S_NUM_TICKETS, 'n',
913 "The number of TLSv1.3 session tickets that a server will automatically issue" },
914 {"anti_replay", OPT_ANTI_REPLAY, '-', "Switch on anti-replay protection (default)"},
915 {"no_anti_replay", OPT_NO_ANTI_REPLAY, '-', "Switch off anti-replay protection"},
916 {"http_server_binmode", OPT_HTTP_SERVER_BINMODE, '-', "opening files in binary mode when acting as http server (-WWW and -HTTP)"},
917 {"no_ca_names", OPT_NOCANAMES, '-',
918 "Disable TLS Extension CA Names"},
919 {"stateless", OPT_STATELESS, '-', "Require TLSv1.3 cookies"},
920 #ifndef OPENSSL_NO_SSL3
921 {"ssl3", OPT_SSL3, '-', "Just talk SSLv3"},
922 #endif
923 #ifndef OPENSSL_NO_TLS1
924 {"tls1", OPT_TLS1, '-', "Just talk TLSv1"},
925 #endif
926 #ifndef OPENSSL_NO_TLS1_1
927 {"tls1_1", OPT_TLS1_1, '-', "Just talk TLSv1.1"},
928 #endif
929 #ifndef OPENSSL_NO_TLS1_2
930 {"tls1_2", OPT_TLS1_2, '-', "just talk TLSv1.2"},
931 #endif
932 #ifndef OPENSSL_NO_TLS1_3
933 {"tls1_3", OPT_TLS1_3, '-', "just talk TLSv1.3"},
934 #endif
935 #ifndef OPENSSL_NO_DTLS
936 {"dtls", OPT_DTLS, '-', "Use any DTLS version"},
937 {"listen", OPT_LISTEN, '-',
938 "Listen for a DTLS ClientHello with a cookie and then connect"},
939 #endif
940 #ifndef OPENSSL_NO_DTLS1
941 {"dtls1", OPT_DTLS1, '-', "Just talk DTLSv1"},
942 #endif
943 #ifndef OPENSSL_NO_DTLS1_2
944 {"dtls1_2", OPT_DTLS1_2, '-', "Just talk DTLSv1.2"},
945 #endif
946 #ifndef OPENSSL_NO_SCTP
947 {"sctp", OPT_SCTP, '-', "Use SCTP"},
948 {"sctp_label_bug", OPT_SCTP_LABEL_BUG, '-', "Enable SCTP label length bug"},
949 #endif
950 #ifndef OPENSSL_NO_SRTP
951 {"use_srtp", OPT_SRTP_PROFILES, 's',
952 "Offer SRTP key management with a colon-separated profile list"},
953 #endif
954 {"no_dhe", OPT_NO_DHE, '-', "Disable ephemeral DH"},
955 #ifndef OPENSSL_NO_NEXTPROTONEG
956 {"nextprotoneg", OPT_NEXTPROTONEG, 's',
957 "Set the advertised protocols for the NPN extension (comma-separated list)"},
958 #endif
959 {"alpn", OPT_ALPN, 's',
960 "Set the advertised protocols for the ALPN extension (comma-separated list)"},
961 #ifndef OPENSSL_NO_KTLS
962 {"sendfile", OPT_SENDFILE, '-', "Use sendfile to response file with -WWW"},
963 #endif
964
965 OPT_R_OPTIONS,
966 OPT_S_OPTIONS,
967 OPT_V_OPTIONS,
968 OPT_X_OPTIONS,
969 OPT_PROV_OPTIONS,
970 {NULL}
971 };
972
973 #define IS_PROT_FLAG(o) \
974 (o == OPT_SSL3 || o == OPT_TLS1 || o == OPT_TLS1_1 || o == OPT_TLS1_2 \
975 || o == OPT_TLS1_3 || o == OPT_DTLS || o == OPT_DTLS1 || o == OPT_DTLS1_2)
976
s_server_main(int argc,char * argv[])977 int s_server_main(int argc, char *argv[])
978 {
979 ENGINE *engine = NULL;
980 EVP_PKEY *s_key = NULL, *s_dkey = NULL;
981 SSL_CONF_CTX *cctx = NULL;
982 const SSL_METHOD *meth = TLS_server_method();
983 SSL_EXCERT *exc = NULL;
984 STACK_OF(OPENSSL_STRING) *ssl_args = NULL;
985 STACK_OF(X509) *s_chain = NULL, *s_dchain = NULL;
986 STACK_OF(X509_CRL) *crls = NULL;
987 X509 *s_cert = NULL, *s_dcert = NULL;
988 X509_VERIFY_PARAM *vpm = NULL;
989 const char *CApath = NULL, *CAfile = NULL, *CAstore = NULL;
990 const char *chCApath = NULL, *chCAfile = NULL, *chCAstore = NULL;
991 char *dpassarg = NULL, *dpass = NULL;
992 char *passarg = NULL, *pass = NULL;
993 char *vfyCApath = NULL, *vfyCAfile = NULL, *vfyCAstore = NULL;
994 char *crl_file = NULL, *prog;
995 #ifdef AF_UNIX
996 int unlink_unix_path = 0;
997 #endif
998 do_server_cb server_cb;
999 int vpmtouched = 0, build_chain = 0, no_cache = 0, ext_cache = 0;
1000 char *dhfile = NULL;
1001 int no_dhe = 0;
1002 int nocert = 0, ret = 1;
1003 int noCApath = 0, noCAfile = 0, noCAstore = 0;
1004 int s_cert_format = FORMAT_UNDEF, s_key_format = FORMAT_UNDEF;
1005 int s_dcert_format = FORMAT_UNDEF, s_dkey_format = FORMAT_UNDEF;
1006 int rev = 0, naccept = -1, sdebug = 0;
1007 int socket_family = AF_UNSPEC, socket_type = SOCK_STREAM, protocol = 0;
1008 int state = 0, crl_format = FORMAT_UNDEF, crl_download = 0;
1009 char *host = NULL;
1010 char *port = NULL;
1011 unsigned char *context = NULL;
1012 OPTION_CHOICE o;
1013 EVP_PKEY *s_key2 = NULL;
1014 X509 *s_cert2 = NULL;
1015 tlsextctx tlsextcbp = { NULL, NULL, SSL_TLSEXT_ERR_ALERT_WARNING };
1016 const char *ssl_config = NULL;
1017 int read_buf_len = 0;
1018 #ifndef OPENSSL_NO_NEXTPROTONEG
1019 const char *next_proto_neg_in = NULL;
1020 tlsextnextprotoctx next_proto = { NULL, 0 };
1021 #endif
1022 const char *alpn_in = NULL;
1023 tlsextalpnctx alpn_ctx = { NULL, 0 };
1024 #ifndef OPENSSL_NO_PSK
1025 /* by default do not send a PSK identity hint */
1026 char *psk_identity_hint = NULL;
1027 #endif
1028 char *p;
1029 #ifndef OPENSSL_NO_SRP
1030 char *srpuserseed = NULL;
1031 char *srp_verifier_file = NULL;
1032 #endif
1033 #ifndef OPENSSL_NO_SRTP
1034 char *srtp_profiles = NULL;
1035 #endif
1036 int min_version = 0, max_version = 0, prot_opt = 0, no_prot_opt = 0;
1037 int s_server_verify = SSL_VERIFY_NONE;
1038 int s_server_session_id_context = 1; /* anything will do */
1039 const char *s_cert_file = TEST_CERT, *s_key_file = NULL, *s_chain_file = NULL;
1040 const char *s_cert_file2 = TEST_CERT2, *s_key_file2 = NULL;
1041 char *s_dcert_file = NULL, *s_dkey_file = NULL, *s_dchain_file = NULL;
1042 #ifndef OPENSSL_NO_OCSP
1043 int s_tlsextstatus = 0;
1044 #endif
1045 int no_resume_ephemeral = 0;
1046 unsigned int max_send_fragment = 0;
1047 unsigned int split_send_fragment = 0, max_pipelines = 0;
1048 const char *s_serverinfo_file = NULL;
1049 const char *keylog_file = NULL;
1050 int max_early_data = -1, recv_max_early_data = -1;
1051 char *psksessf = NULL;
1052 int no_ca_names = 0;
1053 #ifndef OPENSSL_NO_SCTP
1054 int sctp_label_bug = 0;
1055 #endif
1056 int ignore_unexpected_eof = 0;
1057
1058 /* Init of few remaining global variables */
1059 local_argc = argc;
1060 local_argv = argv;
1061
1062 ctx = ctx2 = NULL;
1063 s_nbio = s_nbio_test = 0;
1064 www = 0;
1065 bio_s_out = NULL;
1066 s_debug = 0;
1067 s_msg = 0;
1068 s_quiet = 0;
1069 s_brief = 0;
1070 async = 0;
1071 use_sendfile = 0;
1072
1073 port = OPENSSL_strdup(PORT);
1074 cctx = SSL_CONF_CTX_new();
1075 vpm = X509_VERIFY_PARAM_new();
1076 if (port == NULL || cctx == NULL || vpm == NULL)
1077 goto end;
1078 SSL_CONF_CTX_set_flags(cctx,
1079 SSL_CONF_FLAG_SERVER | SSL_CONF_FLAG_CMDLINE);
1080
1081 prog = opt_init(argc, argv, s_server_options);
1082 while ((o = opt_next()) != OPT_EOF) {
1083 if (IS_PROT_FLAG(o) && ++prot_opt > 1) {
1084 BIO_printf(bio_err, "Cannot supply multiple protocol flags\n");
1085 goto end;
1086 }
1087 if (IS_NO_PROT_FLAG(o))
1088 no_prot_opt++;
1089 if (prot_opt == 1 && no_prot_opt) {
1090 BIO_printf(bio_err,
1091 "Cannot supply both a protocol flag and '-no_<prot>'\n");
1092 goto end;
1093 }
1094 switch (o) {
1095 case OPT_EOF:
1096 case OPT_ERR:
1097 opthelp:
1098 BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
1099 goto end;
1100 case OPT_HELP:
1101 opt_help(s_server_options);
1102 ret = 0;
1103 goto end;
1104
1105 case OPT_4:
1106 #ifdef AF_UNIX
1107 if (socket_family == AF_UNIX) {
1108 OPENSSL_free(host); host = NULL;
1109 OPENSSL_free(port); port = NULL;
1110 }
1111 #endif
1112 socket_family = AF_INET;
1113 break;
1114 case OPT_6:
1115 if (1) {
1116 #ifdef AF_INET6
1117 #ifdef AF_UNIX
1118 if (socket_family == AF_UNIX) {
1119 OPENSSL_free(host); host = NULL;
1120 OPENSSL_free(port); port = NULL;
1121 }
1122 #endif
1123 socket_family = AF_INET6;
1124 } else {
1125 #endif
1126 BIO_printf(bio_err, "%s: IPv6 domain sockets unsupported\n", prog);
1127 goto end;
1128 }
1129 break;
1130 case OPT_PORT:
1131 #ifdef AF_UNIX
1132 if (socket_family == AF_UNIX) {
1133 socket_family = AF_UNSPEC;
1134 }
1135 #endif
1136 OPENSSL_free(port); port = NULL;
1137 OPENSSL_free(host); host = NULL;
1138 if (BIO_parse_hostserv(opt_arg(), NULL, &port, BIO_PARSE_PRIO_SERV) < 1) {
1139 BIO_printf(bio_err,
1140 "%s: -port argument malformed or ambiguous\n",
1141 port);
1142 goto end;
1143 }
1144 break;
1145 case OPT_ACCEPT:
1146 #ifdef AF_UNIX
1147 if (socket_family == AF_UNIX) {
1148 socket_family = AF_UNSPEC;
1149 }
1150 #endif
1151 OPENSSL_free(port); port = NULL;
1152 OPENSSL_free(host); host = NULL;
1153 if (BIO_parse_hostserv(opt_arg(), &host, &port, BIO_PARSE_PRIO_SERV) < 1) {
1154 BIO_printf(bio_err,
1155 "%s: -accept argument malformed or ambiguous\n",
1156 port);
1157 goto end;
1158 }
1159 break;
1160 #ifdef AF_UNIX
1161 case OPT_UNIX:
1162 socket_family = AF_UNIX;
1163 OPENSSL_free(host); host = OPENSSL_strdup(opt_arg());
1164 if (host == NULL)
1165 goto end;
1166 OPENSSL_free(port); port = NULL;
1167 break;
1168 case OPT_UNLINK:
1169 unlink_unix_path = 1;
1170 break;
1171 #endif
1172 case OPT_NACCEPT:
1173 naccept = atol(opt_arg());
1174 break;
1175 case OPT_VERIFY:
1176 s_server_verify = SSL_VERIFY_PEER | SSL_VERIFY_CLIENT_ONCE;
1177 verify_args.depth = atoi(opt_arg());
1178 if (!s_quiet)
1179 BIO_printf(bio_err, "verify depth is %d\n", verify_args.depth);
1180 break;
1181 case OPT_UPPER_V_VERIFY:
1182 s_server_verify =
1183 SSL_VERIFY_PEER | SSL_VERIFY_FAIL_IF_NO_PEER_CERT |
1184 SSL_VERIFY_CLIENT_ONCE;
1185 verify_args.depth = atoi(opt_arg());
1186 if (!s_quiet)
1187 BIO_printf(bio_err,
1188 "verify depth is %d, must return a certificate\n",
1189 verify_args.depth);
1190 break;
1191 case OPT_CONTEXT:
1192 context = (unsigned char *)opt_arg();
1193 break;
1194 case OPT_CERT:
1195 s_cert_file = opt_arg();
1196 break;
1197 case OPT_NAMEOPT:
1198 if (!set_nameopt(opt_arg()))
1199 goto end;
1200 break;
1201 case OPT_CRL:
1202 crl_file = opt_arg();
1203 break;
1204 case OPT_CRL_DOWNLOAD:
1205 crl_download = 1;
1206 break;
1207 case OPT_SERVERINFO:
1208 s_serverinfo_file = opt_arg();
1209 break;
1210 case OPT_CERTFORM:
1211 if (!opt_format(opt_arg(), OPT_FMT_ANY, &s_cert_format))
1212 goto opthelp;
1213 break;
1214 case OPT_KEY:
1215 s_key_file = opt_arg();
1216 break;
1217 case OPT_KEYFORM:
1218 if (!opt_format(opt_arg(), OPT_FMT_ANY, &s_key_format))
1219 goto opthelp;
1220 break;
1221 case OPT_PASS:
1222 passarg = opt_arg();
1223 break;
1224 case OPT_CERT_CHAIN:
1225 s_chain_file = opt_arg();
1226 break;
1227 case OPT_DHPARAM:
1228 dhfile = opt_arg();
1229 break;
1230 case OPT_DCERTFORM:
1231 if (!opt_format(opt_arg(), OPT_FMT_ANY, &s_dcert_format))
1232 goto opthelp;
1233 break;
1234 case OPT_DCERT:
1235 s_dcert_file = opt_arg();
1236 break;
1237 case OPT_DKEYFORM:
1238 if (!opt_format(opt_arg(), OPT_FMT_ANY, &s_dkey_format))
1239 goto opthelp;
1240 break;
1241 case OPT_DPASS:
1242 dpassarg = opt_arg();
1243 break;
1244 case OPT_DKEY:
1245 s_dkey_file = opt_arg();
1246 break;
1247 case OPT_DCERT_CHAIN:
1248 s_dchain_file = opt_arg();
1249 break;
1250 case OPT_NOCERT:
1251 nocert = 1;
1252 break;
1253 case OPT_CAPATH:
1254 CApath = opt_arg();
1255 break;
1256 case OPT_NOCAPATH:
1257 noCApath = 1;
1258 break;
1259 case OPT_CHAINCAPATH:
1260 chCApath = opt_arg();
1261 break;
1262 case OPT_VERIFYCAPATH:
1263 vfyCApath = opt_arg();
1264 break;
1265 case OPT_CASTORE:
1266 CAstore = opt_arg();
1267 break;
1268 case OPT_NOCASTORE:
1269 noCAstore = 1;
1270 break;
1271 case OPT_CHAINCASTORE:
1272 chCAstore = opt_arg();
1273 break;
1274 case OPT_VERIFYCASTORE:
1275 vfyCAstore = opt_arg();
1276 break;
1277 case OPT_NO_CACHE:
1278 no_cache = 1;
1279 break;
1280 case OPT_EXT_CACHE:
1281 ext_cache = 1;
1282 break;
1283 case OPT_CRLFORM:
1284 if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &crl_format))
1285 goto opthelp;
1286 break;
1287 case OPT_S_CASES:
1288 case OPT_S_NUM_TICKETS:
1289 case OPT_ANTI_REPLAY:
1290 case OPT_NO_ANTI_REPLAY:
1291 if (ssl_args == NULL)
1292 ssl_args = sk_OPENSSL_STRING_new_null();
1293 if (ssl_args == NULL
1294 || !sk_OPENSSL_STRING_push(ssl_args, opt_flag())
1295 || !sk_OPENSSL_STRING_push(ssl_args, opt_arg())) {
1296 BIO_printf(bio_err, "%s: Memory allocation failure\n", prog);
1297 goto end;
1298 }
1299 break;
1300 case OPT_V_CASES:
1301 if (!opt_verify(o, vpm))
1302 goto end;
1303 vpmtouched++;
1304 break;
1305 case OPT_X_CASES:
1306 if (!args_excert(o, &exc))
1307 goto end;
1308 break;
1309 case OPT_VERIFY_RET_ERROR:
1310 verify_args.return_error = 1;
1311 break;
1312 case OPT_VERIFY_QUIET:
1313 verify_args.quiet = 1;
1314 break;
1315 case OPT_BUILD_CHAIN:
1316 build_chain = 1;
1317 break;
1318 case OPT_CAFILE:
1319 CAfile = opt_arg();
1320 break;
1321 case OPT_NOCAFILE:
1322 noCAfile = 1;
1323 break;
1324 case OPT_CHAINCAFILE:
1325 chCAfile = opt_arg();
1326 break;
1327 case OPT_VERIFYCAFILE:
1328 vfyCAfile = opt_arg();
1329 break;
1330 case OPT_NBIO:
1331 s_nbio = 1;
1332 break;
1333 case OPT_NBIO_TEST:
1334 s_nbio = s_nbio_test = 1;
1335 break;
1336 case OPT_IGN_EOF:
1337 s_ign_eof = 1;
1338 break;
1339 case OPT_NO_IGN_EOF:
1340 s_ign_eof = 0;
1341 break;
1342 case OPT_DEBUG:
1343 s_debug = 1;
1344 break;
1345 case OPT_TLSEXTDEBUG:
1346 s_tlsextdebug = 1;
1347 break;
1348 case OPT_STATUS:
1349 #ifndef OPENSSL_NO_OCSP
1350 s_tlsextstatus = 1;
1351 #endif
1352 break;
1353 case OPT_STATUS_VERBOSE:
1354 #ifndef OPENSSL_NO_OCSP
1355 s_tlsextstatus = tlscstatp.verbose = 1;
1356 #endif
1357 break;
1358 case OPT_STATUS_TIMEOUT:
1359 #ifndef OPENSSL_NO_OCSP
1360 s_tlsextstatus = 1;
1361 tlscstatp.timeout = atoi(opt_arg());
1362 #endif
1363 break;
1364 case OPT_PROXY:
1365 #ifndef OPENSSL_NO_OCSP
1366 tlscstatp.proxy = opt_arg();
1367 #endif
1368 break;
1369 case OPT_NO_PROXY:
1370 #ifndef OPENSSL_NO_OCSP
1371 tlscstatp.no_proxy = opt_arg();
1372 #endif
1373 break;
1374 case OPT_STATUS_URL:
1375 #ifndef OPENSSL_NO_OCSP
1376 s_tlsextstatus = 1;
1377 if (!OSSL_HTTP_parse_url(opt_arg(), &tlscstatp.use_ssl, NULL,
1378 &tlscstatp.host, &tlscstatp.port, NULL,
1379 &tlscstatp.path, NULL, NULL)) {
1380 BIO_printf(bio_err, "Error parsing -status_url argument\n");
1381 goto end;
1382 }
1383 #endif
1384 break;
1385 case OPT_STATUS_FILE:
1386 #ifndef OPENSSL_NO_OCSP
1387 s_tlsextstatus = 1;
1388 tlscstatp.respin = opt_arg();
1389 #endif
1390 break;
1391 case OPT_MSG:
1392 s_msg = 1;
1393 break;
1394 case OPT_MSGFILE:
1395 bio_s_msg = BIO_new_file(opt_arg(), "w");
1396 if (bio_s_msg == NULL) {
1397 BIO_printf(bio_err, "Error writing file %s\n", opt_arg());
1398 goto end;
1399 }
1400 break;
1401 case OPT_TRACE:
1402 #ifndef OPENSSL_NO_SSL_TRACE
1403 s_msg = 2;
1404 #endif
1405 break;
1406 case OPT_SECURITY_DEBUG:
1407 sdebug = 1;
1408 break;
1409 case OPT_SECURITY_DEBUG_VERBOSE:
1410 sdebug = 2;
1411 break;
1412 case OPT_STATE:
1413 state = 1;
1414 break;
1415 case OPT_CRLF:
1416 s_crlf = 1;
1417 break;
1418 case OPT_QUIET:
1419 s_quiet = 1;
1420 break;
1421 case OPT_BRIEF:
1422 s_quiet = s_brief = verify_args.quiet = 1;
1423 break;
1424 case OPT_NO_DHE:
1425 no_dhe = 1;
1426 break;
1427 case OPT_NO_RESUME_EPHEMERAL:
1428 no_resume_ephemeral = 1;
1429 break;
1430 case OPT_PSK_IDENTITY:
1431 psk_identity = opt_arg();
1432 break;
1433 case OPT_PSK_HINT:
1434 #ifndef OPENSSL_NO_PSK
1435 psk_identity_hint = opt_arg();
1436 #endif
1437 break;
1438 case OPT_PSK:
1439 for (p = psk_key = opt_arg(); *p; p++) {
1440 if (isxdigit(_UC(*p)))
1441 continue;
1442 BIO_printf(bio_err, "Not a hex number '%s'\n", psk_key);
1443 goto end;
1444 }
1445 break;
1446 case OPT_PSK_SESS:
1447 psksessf = opt_arg();
1448 break;
1449 case OPT_SRPVFILE:
1450 #ifndef OPENSSL_NO_SRP
1451 srp_verifier_file = opt_arg();
1452 if (min_version < TLS1_VERSION)
1453 min_version = TLS1_VERSION;
1454 #endif
1455 break;
1456 case OPT_SRPUSERSEED:
1457 #ifndef OPENSSL_NO_SRP
1458 srpuserseed = opt_arg();
1459 if (min_version < TLS1_VERSION)
1460 min_version = TLS1_VERSION;
1461 #endif
1462 break;
1463 case OPT_REV:
1464 rev = 1;
1465 break;
1466 case OPT_WWW:
1467 www = 1;
1468 break;
1469 case OPT_UPPER_WWW:
1470 www = 2;
1471 break;
1472 case OPT_HTTP:
1473 www = 3;
1474 break;
1475 case OPT_SSL_CONFIG:
1476 ssl_config = opt_arg();
1477 break;
1478 case OPT_SSL3:
1479 min_version = SSL3_VERSION;
1480 max_version = SSL3_VERSION;
1481 break;
1482 case OPT_TLS1_3:
1483 min_version = TLS1_3_VERSION;
1484 max_version = TLS1_3_VERSION;
1485 break;
1486 case OPT_TLS1_2:
1487 min_version = TLS1_2_VERSION;
1488 max_version = TLS1_2_VERSION;
1489 break;
1490 case OPT_TLS1_1:
1491 min_version = TLS1_1_VERSION;
1492 max_version = TLS1_1_VERSION;
1493 break;
1494 case OPT_TLS1:
1495 min_version = TLS1_VERSION;
1496 max_version = TLS1_VERSION;
1497 break;
1498 case OPT_DTLS:
1499 #ifndef OPENSSL_NO_DTLS
1500 meth = DTLS_server_method();
1501 socket_type = SOCK_DGRAM;
1502 #endif
1503 break;
1504 case OPT_DTLS1:
1505 #ifndef OPENSSL_NO_DTLS
1506 meth = DTLS_server_method();
1507 min_version = DTLS1_VERSION;
1508 max_version = DTLS1_VERSION;
1509 socket_type = SOCK_DGRAM;
1510 #endif
1511 break;
1512 case OPT_DTLS1_2:
1513 #ifndef OPENSSL_NO_DTLS
1514 meth = DTLS_server_method();
1515 min_version = DTLS1_2_VERSION;
1516 max_version = DTLS1_2_VERSION;
1517 socket_type = SOCK_DGRAM;
1518 #endif
1519 break;
1520 case OPT_SCTP:
1521 #ifndef OPENSSL_NO_SCTP
1522 protocol = IPPROTO_SCTP;
1523 #endif
1524 break;
1525 case OPT_SCTP_LABEL_BUG:
1526 #ifndef OPENSSL_NO_SCTP
1527 sctp_label_bug = 1;
1528 #endif
1529 break;
1530 case OPT_TIMEOUT:
1531 #ifndef OPENSSL_NO_DTLS
1532 enable_timeouts = 1;
1533 #endif
1534 break;
1535 case OPT_MTU:
1536 #ifndef OPENSSL_NO_DTLS
1537 socket_mtu = atol(opt_arg());
1538 #endif
1539 break;
1540 case OPT_LISTEN:
1541 #ifndef OPENSSL_NO_DTLS
1542 dtlslisten = 1;
1543 #endif
1544 break;
1545 case OPT_STATELESS:
1546 stateless = 1;
1547 break;
1548 case OPT_ID_PREFIX:
1549 session_id_prefix = opt_arg();
1550 break;
1551 case OPT_ENGINE:
1552 #ifndef OPENSSL_NO_ENGINE
1553 engine = setup_engine(opt_arg(), s_debug);
1554 #endif
1555 break;
1556 case OPT_R_CASES:
1557 if (!opt_rand(o))
1558 goto end;
1559 break;
1560 case OPT_PROV_CASES:
1561 if (!opt_provider(o))
1562 goto end;
1563 break;
1564 case OPT_SERVERNAME:
1565 tlsextcbp.servername = opt_arg();
1566 break;
1567 case OPT_SERVERNAME_FATAL:
1568 tlsextcbp.extension_error = SSL_TLSEXT_ERR_ALERT_FATAL;
1569 break;
1570 case OPT_CERT2:
1571 s_cert_file2 = opt_arg();
1572 break;
1573 case OPT_KEY2:
1574 s_key_file2 = opt_arg();
1575 break;
1576 case OPT_NEXTPROTONEG:
1577 # ifndef OPENSSL_NO_NEXTPROTONEG
1578 next_proto_neg_in = opt_arg();
1579 #endif
1580 break;
1581 case OPT_ALPN:
1582 alpn_in = opt_arg();
1583 break;
1584 case OPT_SRTP_PROFILES:
1585 #ifndef OPENSSL_NO_SRTP
1586 srtp_profiles = opt_arg();
1587 #endif
1588 break;
1589 case OPT_KEYMATEXPORT:
1590 keymatexportlabel = opt_arg();
1591 break;
1592 case OPT_KEYMATEXPORTLEN:
1593 keymatexportlen = atoi(opt_arg());
1594 break;
1595 case OPT_ASYNC:
1596 async = 1;
1597 break;
1598 case OPT_MAX_SEND_FRAG:
1599 max_send_fragment = atoi(opt_arg());
1600 break;
1601 case OPT_SPLIT_SEND_FRAG:
1602 split_send_fragment = atoi(opt_arg());
1603 break;
1604 case OPT_MAX_PIPELINES:
1605 max_pipelines = atoi(opt_arg());
1606 break;
1607 case OPT_READ_BUF:
1608 read_buf_len = atoi(opt_arg());
1609 break;
1610 case OPT_KEYLOG_FILE:
1611 keylog_file = opt_arg();
1612 break;
1613 case OPT_MAX_EARLY:
1614 max_early_data = atoi(opt_arg());
1615 if (max_early_data < 0) {
1616 BIO_printf(bio_err, "Invalid value for max_early_data\n");
1617 goto end;
1618 }
1619 break;
1620 case OPT_RECV_MAX_EARLY:
1621 recv_max_early_data = atoi(opt_arg());
1622 if (recv_max_early_data < 0) {
1623 BIO_printf(bio_err, "Invalid value for recv_max_early_data\n");
1624 goto end;
1625 }
1626 break;
1627 case OPT_EARLY_DATA:
1628 early_data = 1;
1629 if (max_early_data == -1)
1630 max_early_data = SSL3_RT_MAX_PLAIN_LENGTH;
1631 break;
1632 case OPT_HTTP_SERVER_BINMODE:
1633 http_server_binmode = 1;
1634 break;
1635 case OPT_NOCANAMES:
1636 no_ca_names = 1;
1637 break;
1638 case OPT_SENDFILE:
1639 #ifndef OPENSSL_NO_KTLS
1640 use_sendfile = 1;
1641 #endif
1642 break;
1643 case OPT_IGNORE_UNEXPECTED_EOF:
1644 ignore_unexpected_eof = 1;
1645 break;
1646 }
1647 }
1648
1649 /* No extra arguments. */
1650 argc = opt_num_rest();
1651 if (argc != 0)
1652 goto opthelp;
1653
1654 if (!app_RAND_load())
1655 goto end;
1656
1657 #ifndef OPENSSL_NO_NEXTPROTONEG
1658 if (min_version == TLS1_3_VERSION && next_proto_neg_in != NULL) {
1659 BIO_printf(bio_err, "Cannot supply -nextprotoneg with TLSv1.3\n");
1660 goto opthelp;
1661 }
1662 #endif
1663 #ifndef OPENSSL_NO_DTLS
1664 if (www && socket_type == SOCK_DGRAM) {
1665 BIO_printf(bio_err, "Can't use -HTTP, -www or -WWW with DTLS\n");
1666 goto end;
1667 }
1668
1669 if (dtlslisten && socket_type != SOCK_DGRAM) {
1670 BIO_printf(bio_err, "Can only use -listen with DTLS\n");
1671 goto end;
1672 }
1673
1674 if (rev && socket_type == SOCK_DGRAM) {
1675 BIO_printf(bio_err, "Can't use -rev with DTLS\n");
1676 goto end;
1677 }
1678 #endif
1679
1680 if (stateless && socket_type != SOCK_STREAM) {
1681 BIO_printf(bio_err, "Can only use --stateless with TLS\n");
1682 goto end;
1683 }
1684
1685 #ifdef AF_UNIX
1686 if (socket_family == AF_UNIX && socket_type != SOCK_STREAM) {
1687 BIO_printf(bio_err,
1688 "Can't use unix sockets and datagrams together\n");
1689 goto end;
1690 }
1691 #endif
1692 if (early_data && (www > 0 || rev)) {
1693 BIO_printf(bio_err,
1694 "Can't use -early_data in combination with -www, -WWW, -HTTP, or -rev\n");
1695 goto end;
1696 }
1697
1698 #ifndef OPENSSL_NO_SCTP
1699 if (protocol == IPPROTO_SCTP) {
1700 if (socket_type != SOCK_DGRAM) {
1701 BIO_printf(bio_err, "Can't use -sctp without DTLS\n");
1702 goto end;
1703 }
1704 /* SCTP is unusual. It uses DTLS over a SOCK_STREAM protocol */
1705 socket_type = SOCK_STREAM;
1706 }
1707 #endif
1708
1709 #ifndef OPENSSL_NO_KTLS
1710 if (use_sendfile && www <= 1) {
1711 BIO_printf(bio_err, "Can't use -sendfile without -WWW or -HTTP\n");
1712 goto end;
1713 }
1714 #endif
1715
1716 if (!app_passwd(passarg, dpassarg, &pass, &dpass)) {
1717 BIO_printf(bio_err, "Error getting password\n");
1718 goto end;
1719 }
1720
1721 if (s_key_file == NULL)
1722 s_key_file = s_cert_file;
1723
1724 if (s_key_file2 == NULL)
1725 s_key_file2 = s_cert_file2;
1726
1727 if (!load_excert(&exc))
1728 goto end;
1729
1730 if (nocert == 0) {
1731 s_key = load_key(s_key_file, s_key_format, 0, pass, engine,
1732 "server certificate private key");
1733 if (s_key == NULL)
1734 goto end;
1735
1736 s_cert = load_cert_pass(s_cert_file, s_cert_format, 1, pass,
1737 "server certificate");
1738
1739 if (s_cert == NULL)
1740 goto end;
1741 if (s_chain_file != NULL) {
1742 if (!load_certs(s_chain_file, 0, &s_chain, NULL,
1743 "server certificate chain"))
1744 goto end;
1745 }
1746
1747 if (tlsextcbp.servername != NULL) {
1748 s_key2 = load_key(s_key_file2, s_key_format, 0, pass, engine,
1749 "second server certificate private key");
1750 if (s_key2 == NULL)
1751 goto end;
1752
1753 s_cert2 = load_cert_pass(s_cert_file2, s_cert_format, 1, pass,
1754 "second server certificate");
1755
1756 if (s_cert2 == NULL)
1757 goto end;
1758 }
1759 }
1760 #if !defined(OPENSSL_NO_NEXTPROTONEG)
1761 if (next_proto_neg_in) {
1762 next_proto.data = next_protos_parse(&next_proto.len, next_proto_neg_in);
1763 if (next_proto.data == NULL)
1764 goto end;
1765 }
1766 #endif
1767 alpn_ctx.data = NULL;
1768 if (alpn_in) {
1769 alpn_ctx.data = next_protos_parse(&alpn_ctx.len, alpn_in);
1770 if (alpn_ctx.data == NULL)
1771 goto end;
1772 }
1773
1774 if (crl_file != NULL) {
1775 X509_CRL *crl;
1776 crl = load_crl(crl_file, crl_format, 0, "CRL");
1777 if (crl == NULL)
1778 goto end;
1779 crls = sk_X509_CRL_new_null();
1780 if (crls == NULL || !sk_X509_CRL_push(crls, crl)) {
1781 BIO_puts(bio_err, "Error adding CRL\n");
1782 ERR_print_errors(bio_err);
1783 X509_CRL_free(crl);
1784 goto end;
1785 }
1786 }
1787
1788 if (s_dcert_file != NULL) {
1789
1790 if (s_dkey_file == NULL)
1791 s_dkey_file = s_dcert_file;
1792
1793 s_dkey = load_key(s_dkey_file, s_dkey_format,
1794 0, dpass, engine, "second certificate private key");
1795 if (s_dkey == NULL)
1796 goto end;
1797
1798 s_dcert = load_cert_pass(s_dcert_file, s_dcert_format, 1, dpass,
1799 "second server certificate");
1800
1801 if (s_dcert == NULL) {
1802 ERR_print_errors(bio_err);
1803 goto end;
1804 }
1805 if (s_dchain_file != NULL) {
1806 if (!load_certs(s_dchain_file, 0, &s_dchain, NULL,
1807 "second server certificate chain"))
1808 goto end;
1809 }
1810
1811 }
1812
1813 if (bio_s_out == NULL) {
1814 if (s_quiet && !s_debug) {
1815 bio_s_out = BIO_new(BIO_s_null());
1816 if (s_msg && bio_s_msg == NULL) {
1817 bio_s_msg = dup_bio_out(FORMAT_TEXT);
1818 if (bio_s_msg == NULL) {
1819 BIO_printf(bio_err, "Out of memory\n");
1820 goto end;
1821 }
1822 }
1823 } else {
1824 bio_s_out = dup_bio_out(FORMAT_TEXT);
1825 }
1826 }
1827
1828 if (bio_s_out == NULL)
1829 goto end;
1830
1831 if (nocert) {
1832 s_cert_file = NULL;
1833 s_key_file = NULL;
1834 s_dcert_file = NULL;
1835 s_dkey_file = NULL;
1836 s_cert_file2 = NULL;
1837 s_key_file2 = NULL;
1838 }
1839
1840 ctx = SSL_CTX_new_ex(app_get0_libctx(), app_get0_propq(), meth);
1841 if (ctx == NULL) {
1842 ERR_print_errors(bio_err);
1843 goto end;
1844 }
1845
1846 SSL_CTX_clear_mode(ctx, SSL_MODE_AUTO_RETRY);
1847
1848 if (sdebug)
1849 ssl_ctx_security_debug(ctx, sdebug);
1850
1851 if (!config_ctx(cctx, ssl_args, ctx))
1852 goto end;
1853
1854 if (ssl_config) {
1855 if (SSL_CTX_config(ctx, ssl_config) == 0) {
1856 BIO_printf(bio_err, "Error using configuration \"%s\"\n",
1857 ssl_config);
1858 ERR_print_errors(bio_err);
1859 goto end;
1860 }
1861 }
1862 #ifndef OPENSSL_NO_SCTP
1863 if (protocol == IPPROTO_SCTP && sctp_label_bug == 1)
1864 SSL_CTX_set_mode(ctx, SSL_MODE_DTLS_SCTP_LABEL_LENGTH_BUG);
1865 #endif
1866
1867 if (min_version != 0
1868 && SSL_CTX_set_min_proto_version(ctx, min_version) == 0)
1869 goto end;
1870 if (max_version != 0
1871 && SSL_CTX_set_max_proto_version(ctx, max_version) == 0)
1872 goto end;
1873
1874 if (session_id_prefix) {
1875 if (strlen(session_id_prefix) >= 32)
1876 BIO_printf(bio_err,
1877 "warning: id_prefix is too long, only one new session will be possible\n");
1878 if (!SSL_CTX_set_generate_session_id(ctx, generate_session_id)) {
1879 BIO_printf(bio_err, "error setting 'id_prefix'\n");
1880 ERR_print_errors(bio_err);
1881 goto end;
1882 }
1883 BIO_printf(bio_err, "id_prefix '%s' set.\n", session_id_prefix);
1884 }
1885 if (exc != NULL)
1886 ssl_ctx_set_excert(ctx, exc);
1887
1888 if (state)
1889 SSL_CTX_set_info_callback(ctx, apps_ssl_info_callback);
1890 if (no_cache)
1891 SSL_CTX_set_session_cache_mode(ctx, SSL_SESS_CACHE_OFF);
1892 else if (ext_cache)
1893 init_session_cache_ctx(ctx);
1894 else
1895 SSL_CTX_sess_set_cache_size(ctx, 128);
1896
1897 if (async) {
1898 SSL_CTX_set_mode(ctx, SSL_MODE_ASYNC);
1899 }
1900
1901 if (no_ca_names) {
1902 SSL_CTX_set_options(ctx, SSL_OP_DISABLE_TLSEXT_CA_NAMES);
1903 }
1904
1905 if (ignore_unexpected_eof)
1906 SSL_CTX_set_options(ctx, SSL_OP_IGNORE_UNEXPECTED_EOF);
1907
1908 if (max_send_fragment > 0
1909 && !SSL_CTX_set_max_send_fragment(ctx, max_send_fragment)) {
1910 BIO_printf(bio_err, "%s: Max send fragment size %u is out of permitted range\n",
1911 prog, max_send_fragment);
1912 goto end;
1913 }
1914
1915 if (split_send_fragment > 0
1916 && !SSL_CTX_set_split_send_fragment(ctx, split_send_fragment)) {
1917 BIO_printf(bio_err, "%s: Split send fragment size %u is out of permitted range\n",
1918 prog, split_send_fragment);
1919 goto end;
1920 }
1921 if (max_pipelines > 0
1922 && !SSL_CTX_set_max_pipelines(ctx, max_pipelines)) {
1923 BIO_printf(bio_err, "%s: Max pipelines %u is out of permitted range\n",
1924 prog, max_pipelines);
1925 goto end;
1926 }
1927
1928 if (read_buf_len > 0) {
1929 SSL_CTX_set_default_read_buffer_len(ctx, read_buf_len);
1930 }
1931 #ifndef OPENSSL_NO_SRTP
1932 if (srtp_profiles != NULL) {
1933 /* Returns 0 on success! */
1934 if (SSL_CTX_set_tlsext_use_srtp(ctx, srtp_profiles) != 0) {
1935 BIO_printf(bio_err, "Error setting SRTP profile\n");
1936 ERR_print_errors(bio_err);
1937 goto end;
1938 }
1939 }
1940 #endif
1941
1942 if (!ctx_set_verify_locations(ctx, CAfile, noCAfile, CApath, noCApath,
1943 CAstore, noCAstore)) {
1944 ERR_print_errors(bio_err);
1945 goto end;
1946 }
1947 if (vpmtouched && !SSL_CTX_set1_param(ctx, vpm)) {
1948 BIO_printf(bio_err, "Error setting verify params\n");
1949 ERR_print_errors(bio_err);
1950 goto end;
1951 }
1952
1953 ssl_ctx_add_crls(ctx, crls, 0);
1954
1955 if (!ssl_load_stores(ctx,
1956 vfyCApath, vfyCAfile, vfyCAstore,
1957 chCApath, chCAfile, chCAstore,
1958 crls, crl_download)) {
1959 BIO_printf(bio_err, "Error loading store locations\n");
1960 ERR_print_errors(bio_err);
1961 goto end;
1962 }
1963
1964 if (s_cert2) {
1965 ctx2 = SSL_CTX_new_ex(app_get0_libctx(), app_get0_propq(), meth);
1966 if (ctx2 == NULL) {
1967 ERR_print_errors(bio_err);
1968 goto end;
1969 }
1970 }
1971
1972 if (ctx2 != NULL) {
1973 BIO_printf(bio_s_out, "Setting secondary ctx parameters\n");
1974
1975 if (sdebug)
1976 ssl_ctx_security_debug(ctx2, sdebug);
1977
1978 if (session_id_prefix) {
1979 if (strlen(session_id_prefix) >= 32)
1980 BIO_printf(bio_err,
1981 "warning: id_prefix is too long, only one new session will be possible\n");
1982 if (!SSL_CTX_set_generate_session_id(ctx2, generate_session_id)) {
1983 BIO_printf(bio_err, "error setting 'id_prefix'\n");
1984 ERR_print_errors(bio_err);
1985 goto end;
1986 }
1987 BIO_printf(bio_err, "id_prefix '%s' set.\n", session_id_prefix);
1988 }
1989 if (exc != NULL)
1990 ssl_ctx_set_excert(ctx2, exc);
1991
1992 if (state)
1993 SSL_CTX_set_info_callback(ctx2, apps_ssl_info_callback);
1994
1995 if (no_cache)
1996 SSL_CTX_set_session_cache_mode(ctx2, SSL_SESS_CACHE_OFF);
1997 else if (ext_cache)
1998 init_session_cache_ctx(ctx2);
1999 else
2000 SSL_CTX_sess_set_cache_size(ctx2, 128);
2001
2002 if (async)
2003 SSL_CTX_set_mode(ctx2, SSL_MODE_ASYNC);
2004
2005 if (!ctx_set_verify_locations(ctx2, CAfile, noCAfile, CApath,
2006 noCApath, CAstore, noCAstore)) {
2007 ERR_print_errors(bio_err);
2008 goto end;
2009 }
2010 if (vpmtouched && !SSL_CTX_set1_param(ctx2, vpm)) {
2011 BIO_printf(bio_err, "Error setting verify params\n");
2012 ERR_print_errors(bio_err);
2013 goto end;
2014 }
2015
2016 ssl_ctx_add_crls(ctx2, crls, 0);
2017 if (!config_ctx(cctx, ssl_args, ctx2))
2018 goto end;
2019 }
2020 #ifndef OPENSSL_NO_NEXTPROTONEG
2021 if (next_proto.data)
2022 SSL_CTX_set_next_protos_advertised_cb(ctx, next_proto_cb,
2023 &next_proto);
2024 #endif
2025 if (alpn_ctx.data)
2026 SSL_CTX_set_alpn_select_cb(ctx, alpn_cb, &alpn_ctx);
2027
2028 if (!no_dhe) {
2029 EVP_PKEY *dhpkey = NULL;
2030
2031 if (dhfile != NULL)
2032 dhpkey = load_keyparams(dhfile, FORMAT_UNDEF, 0, "DH", "DH parameters");
2033 else if (s_cert_file != NULL)
2034 dhpkey = load_keyparams_suppress(s_cert_file, FORMAT_UNDEF, 0, "DH",
2035 "DH parameters", 1);
2036
2037 if (dhpkey != NULL) {
2038 BIO_printf(bio_s_out, "Setting temp DH parameters\n");
2039 } else {
2040 BIO_printf(bio_s_out, "Using default temp DH parameters\n");
2041 }
2042 (void)BIO_flush(bio_s_out);
2043
2044 if (dhpkey == NULL) {
2045 SSL_CTX_set_dh_auto(ctx, 1);
2046 } else {
2047 /*
2048 * We need 2 references: one for use by ctx and one for use by
2049 * ctx2
2050 */
2051 if (!EVP_PKEY_up_ref(dhpkey)) {
2052 EVP_PKEY_free(dhpkey);
2053 goto end;
2054 }
2055 if (!SSL_CTX_set0_tmp_dh_pkey(ctx, dhpkey)) {
2056 BIO_puts(bio_err, "Error setting temp DH parameters\n");
2057 ERR_print_errors(bio_err);
2058 /* Free 2 references */
2059 EVP_PKEY_free(dhpkey);
2060 EVP_PKEY_free(dhpkey);
2061 goto end;
2062 }
2063 }
2064
2065 if (ctx2 != NULL) {
2066 if (dhfile != NULL) {
2067 EVP_PKEY *dhpkey2 = load_keyparams_suppress(s_cert_file2,
2068 FORMAT_UNDEF,
2069 0, "DH",
2070 "DH parameters", 1);
2071
2072 if (dhpkey2 != NULL) {
2073 BIO_printf(bio_s_out, "Setting temp DH parameters\n");
2074 (void)BIO_flush(bio_s_out);
2075
2076 EVP_PKEY_free(dhpkey);
2077 dhpkey = dhpkey2;
2078 }
2079 }
2080 if (dhpkey == NULL) {
2081 SSL_CTX_set_dh_auto(ctx2, 1);
2082 } else if (!SSL_CTX_set0_tmp_dh_pkey(ctx2, dhpkey)) {
2083 BIO_puts(bio_err, "Error setting temp DH parameters\n");
2084 ERR_print_errors(bio_err);
2085 EVP_PKEY_free(dhpkey);
2086 goto end;
2087 }
2088 dhpkey = NULL;
2089 }
2090 EVP_PKEY_free(dhpkey);
2091 }
2092
2093 if (!set_cert_key_stuff(ctx, s_cert, s_key, s_chain, build_chain))
2094 goto end;
2095
2096 if (s_serverinfo_file != NULL
2097 && !SSL_CTX_use_serverinfo_file(ctx, s_serverinfo_file)) {
2098 ERR_print_errors(bio_err);
2099 goto end;
2100 }
2101
2102 if (ctx2 != NULL
2103 && !set_cert_key_stuff(ctx2, s_cert2, s_key2, NULL, build_chain))
2104 goto end;
2105
2106 if (s_dcert != NULL) {
2107 if (!set_cert_key_stuff(ctx, s_dcert, s_dkey, s_dchain, build_chain))
2108 goto end;
2109 }
2110
2111 if (no_resume_ephemeral) {
2112 SSL_CTX_set_not_resumable_session_callback(ctx,
2113 not_resumable_sess_cb);
2114
2115 if (ctx2 != NULL)
2116 SSL_CTX_set_not_resumable_session_callback(ctx2,
2117 not_resumable_sess_cb);
2118 }
2119 #ifndef OPENSSL_NO_PSK
2120 if (psk_key != NULL) {
2121 if (s_debug)
2122 BIO_printf(bio_s_out, "PSK key given, setting server callback\n");
2123 SSL_CTX_set_psk_server_callback(ctx, psk_server_cb);
2124 }
2125
2126 if (psk_identity_hint != NULL) {
2127 if (min_version == TLS1_3_VERSION) {
2128 BIO_printf(bio_s_out, "PSK warning: there is NO identity hint in TLSv1.3\n");
2129 } else {
2130 if (!SSL_CTX_use_psk_identity_hint(ctx, psk_identity_hint)) {
2131 BIO_printf(bio_err, "error setting PSK identity hint to context\n");
2132 ERR_print_errors(bio_err);
2133 goto end;
2134 }
2135 }
2136 }
2137 #endif
2138 if (psksessf != NULL) {
2139 BIO *stmp = BIO_new_file(psksessf, "r");
2140
2141 if (stmp == NULL) {
2142 BIO_printf(bio_err, "Can't open PSK session file %s\n", psksessf);
2143 ERR_print_errors(bio_err);
2144 goto end;
2145 }
2146 psksess = PEM_read_bio_SSL_SESSION(stmp, NULL, 0, NULL);
2147 BIO_free(stmp);
2148 if (psksess == NULL) {
2149 BIO_printf(bio_err, "Can't read PSK session file %s\n", psksessf);
2150 ERR_print_errors(bio_err);
2151 goto end;
2152 }
2153
2154 }
2155
2156 if (psk_key != NULL || psksess != NULL)
2157 SSL_CTX_set_psk_find_session_callback(ctx, psk_find_session_cb);
2158
2159 SSL_CTX_set_verify(ctx, s_server_verify, verify_callback);
2160 if (!SSL_CTX_set_session_id_context(ctx,
2161 (void *)&s_server_session_id_context,
2162 sizeof(s_server_session_id_context))) {
2163 BIO_printf(bio_err, "error setting session id context\n");
2164 ERR_print_errors(bio_err);
2165 goto end;
2166 }
2167
2168 /* Set DTLS cookie generation and verification callbacks */
2169 SSL_CTX_set_cookie_generate_cb(ctx, generate_cookie_callback);
2170 SSL_CTX_set_cookie_verify_cb(ctx, verify_cookie_callback);
2171
2172 /* Set TLS1.3 cookie generation and verification callbacks */
2173 SSL_CTX_set_stateless_cookie_generate_cb(ctx, generate_stateless_cookie_callback);
2174 SSL_CTX_set_stateless_cookie_verify_cb(ctx, verify_stateless_cookie_callback);
2175
2176 if (ctx2 != NULL) {
2177 SSL_CTX_set_verify(ctx2, s_server_verify, verify_callback);
2178 if (!SSL_CTX_set_session_id_context(ctx2,
2179 (void *)&s_server_session_id_context,
2180 sizeof(s_server_session_id_context))) {
2181 BIO_printf(bio_err, "error setting session id context\n");
2182 ERR_print_errors(bio_err);
2183 goto end;
2184 }
2185 tlsextcbp.biodebug = bio_s_out;
2186 SSL_CTX_set_tlsext_servername_callback(ctx2, ssl_servername_cb);
2187 SSL_CTX_set_tlsext_servername_arg(ctx2, &tlsextcbp);
2188 SSL_CTX_set_tlsext_servername_callback(ctx, ssl_servername_cb);
2189 SSL_CTX_set_tlsext_servername_arg(ctx, &tlsextcbp);
2190 }
2191
2192 #ifndef OPENSSL_NO_SRP
2193 if (srp_verifier_file != NULL) {
2194 if (!set_up_srp_verifier_file(ctx, &srp_callback_parm, srpuserseed,
2195 srp_verifier_file))
2196 goto end;
2197 } else
2198 #endif
2199 if (CAfile != NULL) {
2200 SSL_CTX_set_client_CA_list(ctx, SSL_load_client_CA_file(CAfile));
2201
2202 if (ctx2)
2203 SSL_CTX_set_client_CA_list(ctx2, SSL_load_client_CA_file(CAfile));
2204 }
2205 #ifndef OPENSSL_NO_OCSP
2206 if (s_tlsextstatus) {
2207 SSL_CTX_set_tlsext_status_cb(ctx, cert_status_cb);
2208 SSL_CTX_set_tlsext_status_arg(ctx, &tlscstatp);
2209 if (ctx2) {
2210 SSL_CTX_set_tlsext_status_cb(ctx2, cert_status_cb);
2211 SSL_CTX_set_tlsext_status_arg(ctx2, &tlscstatp);
2212 }
2213 }
2214 #endif
2215 if (set_keylog_file(ctx, keylog_file))
2216 goto end;
2217
2218 if (max_early_data >= 0)
2219 SSL_CTX_set_max_early_data(ctx, max_early_data);
2220 if (recv_max_early_data >= 0)
2221 SSL_CTX_set_recv_max_early_data(ctx, recv_max_early_data);
2222
2223 if (rev)
2224 server_cb = rev_body;
2225 else if (www)
2226 server_cb = www_body;
2227 else
2228 server_cb = sv_body;
2229 #ifdef AF_UNIX
2230 if (socket_family == AF_UNIX
2231 && unlink_unix_path)
2232 unlink(host);
2233 #endif
2234 do_server(&accept_socket, host, port, socket_family, socket_type, protocol,
2235 server_cb, context, naccept, bio_s_out);
2236 print_stats(bio_s_out, ctx);
2237 ret = 0;
2238 end:
2239 SSL_CTX_free(ctx);
2240 SSL_SESSION_free(psksess);
2241 set_keylog_file(NULL, NULL);
2242 X509_free(s_cert);
2243 sk_X509_CRL_pop_free(crls, X509_CRL_free);
2244 X509_free(s_dcert);
2245 EVP_PKEY_free(s_key);
2246 EVP_PKEY_free(s_dkey);
2247 sk_X509_pop_free(s_chain, X509_free);
2248 sk_X509_pop_free(s_dchain, X509_free);
2249 OPENSSL_free(pass);
2250 OPENSSL_free(dpass);
2251 OPENSSL_free(host);
2252 OPENSSL_free(port);
2253 X509_VERIFY_PARAM_free(vpm);
2254 free_sessions();
2255 OPENSSL_free(tlscstatp.host);
2256 OPENSSL_free(tlscstatp.port);
2257 OPENSSL_free(tlscstatp.path);
2258 SSL_CTX_free(ctx2);
2259 X509_free(s_cert2);
2260 EVP_PKEY_free(s_key2);
2261 #ifndef OPENSSL_NO_NEXTPROTONEG
2262 OPENSSL_free(next_proto.data);
2263 #endif
2264 OPENSSL_free(alpn_ctx.data);
2265 ssl_excert_free(exc);
2266 sk_OPENSSL_STRING_free(ssl_args);
2267 SSL_CONF_CTX_free(cctx);
2268 release_engine(engine);
2269 BIO_free(bio_s_out);
2270 bio_s_out = NULL;
2271 BIO_free(bio_s_msg);
2272 bio_s_msg = NULL;
2273 #ifdef CHARSET_EBCDIC
2274 BIO_meth_free(methods_ebcdic);
2275 #endif
2276 return ret;
2277 }
2278
print_stats(BIO * bio,SSL_CTX * ssl_ctx)2279 static void print_stats(BIO *bio, SSL_CTX *ssl_ctx)
2280 {
2281 BIO_printf(bio, "%4ld items in the session cache\n",
2282 SSL_CTX_sess_number(ssl_ctx));
2283 BIO_printf(bio, "%4ld client connects (SSL_connect())\n",
2284 SSL_CTX_sess_connect(ssl_ctx));
2285 BIO_printf(bio, "%4ld client renegotiates (SSL_connect())\n",
2286 SSL_CTX_sess_connect_renegotiate(ssl_ctx));
2287 BIO_printf(bio, "%4ld client connects that finished\n",
2288 SSL_CTX_sess_connect_good(ssl_ctx));
2289 BIO_printf(bio, "%4ld server accepts (SSL_accept())\n",
2290 SSL_CTX_sess_accept(ssl_ctx));
2291 BIO_printf(bio, "%4ld server renegotiates (SSL_accept())\n",
2292 SSL_CTX_sess_accept_renegotiate(ssl_ctx));
2293 BIO_printf(bio, "%4ld server accepts that finished\n",
2294 SSL_CTX_sess_accept_good(ssl_ctx));
2295 BIO_printf(bio, "%4ld session cache hits\n", SSL_CTX_sess_hits(ssl_ctx));
2296 BIO_printf(bio, "%4ld session cache misses\n",
2297 SSL_CTX_sess_misses(ssl_ctx));
2298 BIO_printf(bio, "%4ld session cache timeouts\n",
2299 SSL_CTX_sess_timeouts(ssl_ctx));
2300 BIO_printf(bio, "%4ld callback cache hits\n",
2301 SSL_CTX_sess_cb_hits(ssl_ctx));
2302 BIO_printf(bio, "%4ld cache full overflows (%ld allowed)\n",
2303 SSL_CTX_sess_cache_full(ssl_ctx),
2304 SSL_CTX_sess_get_cache_size(ssl_ctx));
2305 }
2306
count_reads_callback(BIO * bio,int cmd,const char * argp,size_t len,int argi,long argl,int ret,size_t * processed)2307 static long int count_reads_callback(BIO *bio, int cmd, const char *argp, size_t len,
2308 int argi, long argl, int ret, size_t *processed)
2309 {
2310 unsigned int *p_counter = (unsigned int *)BIO_get_callback_arg(bio);
2311
2312 switch (cmd) {
2313 case BIO_CB_READ: /* No break here */
2314 case BIO_CB_GETS:
2315 if (p_counter != NULL)
2316 ++*p_counter;
2317 break;
2318 default:
2319 break;
2320 }
2321
2322 if (s_debug) {
2323 BIO_set_callback_arg(bio, (char *)bio_s_out);
2324 ret = (int)bio_dump_callback(bio, cmd, argp, len, argi, argl, ret, processed);
2325 BIO_set_callback_arg(bio, (char *)p_counter);
2326 }
2327
2328 return ret;
2329 }
2330
sv_body(int s,int stype,int prot,unsigned char * context)2331 static int sv_body(int s, int stype, int prot, unsigned char *context)
2332 {
2333 char *buf = NULL;
2334 fd_set readfds;
2335 int ret = 1, width;
2336 int k, i;
2337 unsigned long l;
2338 SSL *con = NULL;
2339 BIO *sbio;
2340 struct timeval timeout;
2341 #if !(defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS))
2342 struct timeval *timeoutp;
2343 #endif
2344 #ifndef OPENSSL_NO_DTLS
2345 # ifndef OPENSSL_NO_SCTP
2346 int isdtls = (stype == SOCK_DGRAM || prot == IPPROTO_SCTP);
2347 # else
2348 int isdtls = (stype == SOCK_DGRAM);
2349 # endif
2350 #endif
2351
2352 buf = app_malloc(bufsize, "server buffer");
2353 if (s_nbio) {
2354 if (!BIO_socket_nbio(s, 1))
2355 ERR_print_errors(bio_err);
2356 else if (!s_quiet)
2357 BIO_printf(bio_err, "Turned on non blocking io\n");
2358 }
2359
2360 con = SSL_new(ctx);
2361 if (con == NULL) {
2362 ret = -1;
2363 goto err;
2364 }
2365
2366 if (s_tlsextdebug) {
2367 SSL_set_tlsext_debug_callback(con, tlsext_cb);
2368 SSL_set_tlsext_debug_arg(con, bio_s_out);
2369 }
2370
2371 if (context != NULL
2372 && !SSL_set_session_id_context(con, context,
2373 strlen((char *)context))) {
2374 BIO_printf(bio_err, "Error setting session id context\n");
2375 ret = -1;
2376 goto err;
2377 }
2378
2379 if (!SSL_clear(con)) {
2380 BIO_printf(bio_err, "Error clearing SSL connection\n");
2381 ret = -1;
2382 goto err;
2383 }
2384 #ifndef OPENSSL_NO_DTLS
2385 if (isdtls) {
2386 # ifndef OPENSSL_NO_SCTP
2387 if (prot == IPPROTO_SCTP)
2388 sbio = BIO_new_dgram_sctp(s, BIO_NOCLOSE);
2389 else
2390 # endif
2391 sbio = BIO_new_dgram(s, BIO_NOCLOSE);
2392 if (sbio == NULL) {
2393 BIO_printf(bio_err, "Unable to create BIO\n");
2394 ERR_print_errors(bio_err);
2395 goto err;
2396 }
2397
2398 if (enable_timeouts) {
2399 timeout.tv_sec = 0;
2400 timeout.tv_usec = DGRAM_RCV_TIMEOUT;
2401 BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_RECV_TIMEOUT, 0, &timeout);
2402
2403 timeout.tv_sec = 0;
2404 timeout.tv_usec = DGRAM_SND_TIMEOUT;
2405 BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_SEND_TIMEOUT, 0, &timeout);
2406 }
2407
2408 if (socket_mtu) {
2409 if (socket_mtu < DTLS_get_link_min_mtu(con)) {
2410 BIO_printf(bio_err, "MTU too small. Must be at least %ld\n",
2411 DTLS_get_link_min_mtu(con));
2412 ret = -1;
2413 BIO_free(sbio);
2414 goto err;
2415 }
2416 SSL_set_options(con, SSL_OP_NO_QUERY_MTU);
2417 if (!DTLS_set_link_mtu(con, socket_mtu)) {
2418 BIO_printf(bio_err, "Failed to set MTU\n");
2419 ret = -1;
2420 BIO_free(sbio);
2421 goto err;
2422 }
2423 } else
2424 /* want to do MTU discovery */
2425 BIO_ctrl(sbio, BIO_CTRL_DGRAM_MTU_DISCOVER, 0, NULL);
2426
2427 # ifndef OPENSSL_NO_SCTP
2428 if (prot != IPPROTO_SCTP)
2429 # endif
2430 /* Turn on cookie exchange. Not necessary for SCTP */
2431 SSL_set_options(con, SSL_OP_COOKIE_EXCHANGE);
2432 } else
2433 #endif
2434 sbio = BIO_new_socket(s, BIO_NOCLOSE);
2435
2436 if (sbio == NULL) {
2437 BIO_printf(bio_err, "Unable to create BIO\n");
2438 ERR_print_errors(bio_err);
2439 goto err;
2440 }
2441
2442 if (s_nbio_test) {
2443 BIO *test;
2444
2445 test = BIO_new(BIO_f_nbio_test());
2446 if (test == NULL) {
2447 BIO_printf(bio_err, "Unable to create BIO\n");
2448 ret = -1;
2449 BIO_free(sbio);
2450 goto err;
2451 }
2452
2453 sbio = BIO_push(test, sbio);
2454 }
2455
2456 SSL_set_bio(con, sbio, sbio);
2457 SSL_set_accept_state(con);
2458 /* SSL_set_fd(con,s); */
2459
2460 BIO_set_callback_ex(SSL_get_rbio(con), count_reads_callback);
2461 if (s_msg) {
2462 #ifndef OPENSSL_NO_SSL_TRACE
2463 if (s_msg == 2)
2464 SSL_set_msg_callback(con, SSL_trace);
2465 else
2466 #endif
2467 SSL_set_msg_callback(con, msg_cb);
2468 SSL_set_msg_callback_arg(con, bio_s_msg ? bio_s_msg : bio_s_out);
2469 }
2470
2471 if (s_tlsextdebug) {
2472 SSL_set_tlsext_debug_callback(con, tlsext_cb);
2473 SSL_set_tlsext_debug_arg(con, bio_s_out);
2474 }
2475
2476 if (early_data) {
2477 int write_header = 1, edret = SSL_READ_EARLY_DATA_ERROR;
2478 size_t readbytes;
2479
2480 while (edret != SSL_READ_EARLY_DATA_FINISH) {
2481 for (;;) {
2482 edret = SSL_read_early_data(con, buf, bufsize, &readbytes);
2483 if (edret != SSL_READ_EARLY_DATA_ERROR)
2484 break;
2485
2486 switch (SSL_get_error(con, 0)) {
2487 case SSL_ERROR_WANT_WRITE:
2488 case SSL_ERROR_WANT_ASYNC:
2489 case SSL_ERROR_WANT_READ:
2490 /* Just keep trying - busy waiting */
2491 continue;
2492 default:
2493 BIO_printf(bio_err, "Error reading early data\n");
2494 ERR_print_errors(bio_err);
2495 goto err;
2496 }
2497 }
2498 if (readbytes > 0) {
2499 if (write_header) {
2500 BIO_printf(bio_s_out, "Early data received:\n");
2501 write_header = 0;
2502 }
2503 raw_write_stdout(buf, (unsigned int)readbytes);
2504 (void)BIO_flush(bio_s_out);
2505 }
2506 }
2507 if (write_header) {
2508 if (SSL_get_early_data_status(con) == SSL_EARLY_DATA_NOT_SENT)
2509 BIO_printf(bio_s_out, "No early data received\n");
2510 else
2511 BIO_printf(bio_s_out, "Early data was rejected\n");
2512 } else {
2513 BIO_printf(bio_s_out, "\nEnd of early data\n");
2514 }
2515 if (SSL_is_init_finished(con))
2516 print_connection_info(con);
2517 }
2518
2519 if (fileno_stdin() > s)
2520 width = fileno_stdin() + 1;
2521 else
2522 width = s + 1;
2523 for (;;) {
2524 int read_from_terminal;
2525 int read_from_sslcon;
2526
2527 read_from_terminal = 0;
2528 read_from_sslcon = SSL_has_pending(con)
2529 || (async && SSL_waiting_for_async(con));
2530
2531 if (!read_from_sslcon) {
2532 FD_ZERO(&readfds);
2533 #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS)
2534 openssl_fdset(fileno_stdin(), &readfds);
2535 #endif
2536 openssl_fdset(s, &readfds);
2537 /*
2538 * Note: under VMS with SOCKETSHR the second parameter is
2539 * currently of type (int *) whereas under other systems it is
2540 * (void *) if you don't have a cast it will choke the compiler:
2541 * if you do have a cast then you can either go for (int *) or
2542 * (void *).
2543 */
2544 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
2545 /*
2546 * Under DOS (non-djgpp) and Windows we can't select on stdin:
2547 * only on sockets. As a workaround we timeout the select every
2548 * second and check for any keypress. In a proper Windows
2549 * application we wouldn't do this because it is inefficient.
2550 */
2551 timeout.tv_sec = 1;
2552 timeout.tv_usec = 0;
2553 i = select(width, (void *)&readfds, NULL, NULL, &timeout);
2554 if (has_stdin_waiting())
2555 read_from_terminal = 1;
2556 if ((i < 0) || (!i && !read_from_terminal))
2557 continue;
2558 #else
2559 if (SSL_is_dtls(con) && DTLSv1_get_timeout(con, &timeout))
2560 timeoutp = &timeout;
2561 else
2562 timeoutp = NULL;
2563
2564 i = select(width, (void *)&readfds, NULL, NULL, timeoutp);
2565
2566 if ((SSL_is_dtls(con)) && DTLSv1_handle_timeout(con) > 0)
2567 BIO_printf(bio_err, "TIMEOUT occurred\n");
2568
2569 if (i <= 0)
2570 continue;
2571 if (FD_ISSET(fileno_stdin(), &readfds))
2572 read_from_terminal = 1;
2573 #endif
2574 if (FD_ISSET(s, &readfds))
2575 read_from_sslcon = 1;
2576 }
2577 if (read_from_terminal) {
2578 if (s_crlf) {
2579 int j, lf_num;
2580
2581 i = raw_read_stdin(buf, bufsize / 2);
2582 lf_num = 0;
2583 /* both loops are skipped when i <= 0 */
2584 for (j = 0; j < i; j++)
2585 if (buf[j] == '\n')
2586 lf_num++;
2587 for (j = i - 1; j >= 0; j--) {
2588 buf[j + lf_num] = buf[j];
2589 if (buf[j] == '\n') {
2590 lf_num--;
2591 i++;
2592 buf[j + lf_num] = '\r';
2593 }
2594 }
2595 assert(lf_num == 0);
2596 } else {
2597 i = raw_read_stdin(buf, bufsize);
2598 }
2599
2600 if (!s_quiet && !s_brief) {
2601 if ((i <= 0) || (buf[0] == 'Q')) {
2602 BIO_printf(bio_s_out, "DONE\n");
2603 (void)BIO_flush(bio_s_out);
2604 BIO_closesocket(s);
2605 close_accept_socket();
2606 ret = -11;
2607 goto err;
2608 }
2609 if ((i <= 0) || (buf[0] == 'q')) {
2610 BIO_printf(bio_s_out, "DONE\n");
2611 (void)BIO_flush(bio_s_out);
2612 if (SSL_version(con) != DTLS1_VERSION)
2613 BIO_closesocket(s);
2614 /*
2615 * close_accept_socket(); ret= -11;
2616 */
2617 goto err;
2618 }
2619 if ((buf[0] == 'r') && ((buf[1] == '\n') || (buf[1] == '\r'))) {
2620 SSL_renegotiate(con);
2621 i = SSL_do_handshake(con);
2622 printf("SSL_do_handshake -> %d\n", i);
2623 i = 0; /* 13; */
2624 continue;
2625 }
2626 if ((buf[0] == 'R') && ((buf[1] == '\n') || (buf[1] == '\r'))) {
2627 SSL_set_verify(con,
2628 SSL_VERIFY_PEER | SSL_VERIFY_CLIENT_ONCE,
2629 NULL);
2630 SSL_renegotiate(con);
2631 i = SSL_do_handshake(con);
2632 printf("SSL_do_handshake -> %d\n", i);
2633 i = 0; /* 13; */
2634 continue;
2635 }
2636 if ((buf[0] == 'K' || buf[0] == 'k')
2637 && ((buf[1] == '\n') || (buf[1] == '\r'))) {
2638 SSL_key_update(con, buf[0] == 'K' ?
2639 SSL_KEY_UPDATE_REQUESTED
2640 : SSL_KEY_UPDATE_NOT_REQUESTED);
2641 i = SSL_do_handshake(con);
2642 printf("SSL_do_handshake -> %d\n", i);
2643 i = 0;
2644 continue;
2645 }
2646 if (buf[0] == 'c' && ((buf[1] == '\n') || (buf[1] == '\r'))) {
2647 SSL_set_verify(con, SSL_VERIFY_PEER, NULL);
2648 i = SSL_verify_client_post_handshake(con);
2649 if (i == 0) {
2650 printf("Failed to initiate request\n");
2651 ERR_print_errors(bio_err);
2652 } else {
2653 i = SSL_do_handshake(con);
2654 printf("SSL_do_handshake -> %d\n", i);
2655 i = 0;
2656 }
2657 continue;
2658 }
2659 if (buf[0] == 'P') {
2660 static const char str[] = "Lets print some clear text\n";
2661 BIO_write(SSL_get_wbio(con), str, sizeof(str) -1);
2662 }
2663 if (buf[0] == 'S') {
2664 print_stats(bio_s_out, SSL_get_SSL_CTX(con));
2665 }
2666 }
2667 #ifdef CHARSET_EBCDIC
2668 ebcdic2ascii(buf, buf, i);
2669 #endif
2670 l = k = 0;
2671 for (;;) {
2672 /* should do a select for the write */
2673 #ifdef RENEG
2674 static count = 0;
2675 if (++count == 100) {
2676 count = 0;
2677 SSL_renegotiate(con);
2678 }
2679 #endif
2680 k = SSL_write(con, &(buf[l]), (unsigned int)i);
2681 #ifndef OPENSSL_NO_SRP
2682 while (SSL_get_error(con, k) == SSL_ERROR_WANT_X509_LOOKUP) {
2683 BIO_printf(bio_s_out, "LOOKUP renego during write\n");
2684
2685 lookup_srp_user(&srp_callback_parm, bio_s_out);
2686
2687 k = SSL_write(con, &(buf[l]), (unsigned int)i);
2688 }
2689 #endif
2690 switch (SSL_get_error(con, k)) {
2691 case SSL_ERROR_NONE:
2692 break;
2693 case SSL_ERROR_WANT_ASYNC:
2694 BIO_printf(bio_s_out, "Write BLOCK (Async)\n");
2695 (void)BIO_flush(bio_s_out);
2696 wait_for_async(con);
2697 break;
2698 case SSL_ERROR_WANT_WRITE:
2699 case SSL_ERROR_WANT_READ:
2700 case SSL_ERROR_WANT_X509_LOOKUP:
2701 BIO_printf(bio_s_out, "Write BLOCK\n");
2702 (void)BIO_flush(bio_s_out);
2703 break;
2704 case SSL_ERROR_WANT_ASYNC_JOB:
2705 /*
2706 * This shouldn't ever happen in s_server. Treat as an error
2707 */
2708 case SSL_ERROR_SYSCALL:
2709 case SSL_ERROR_SSL:
2710 BIO_printf(bio_s_out, "ERROR\n");
2711 (void)BIO_flush(bio_s_out);
2712 ERR_print_errors(bio_err);
2713 ret = 1;
2714 goto err;
2715 /* break; */
2716 case SSL_ERROR_ZERO_RETURN:
2717 BIO_printf(bio_s_out, "DONE\n");
2718 (void)BIO_flush(bio_s_out);
2719 ret = 1;
2720 goto err;
2721 }
2722 if (k > 0) {
2723 l += k;
2724 i -= k;
2725 }
2726 if (i <= 0)
2727 break;
2728 }
2729 }
2730 if (read_from_sslcon) {
2731 /*
2732 * init_ssl_connection handles all async events itself so if we're
2733 * waiting for async then we shouldn't go back into
2734 * init_ssl_connection
2735 */
2736 if ((!async || !SSL_waiting_for_async(con))
2737 && !SSL_is_init_finished(con)) {
2738 /*
2739 * Count number of reads during init_ssl_connection.
2740 * It helps us to distinguish configuration errors from errors
2741 * caused by a client.
2742 */
2743 unsigned int read_counter = 0;
2744
2745 BIO_set_callback_arg(SSL_get_rbio(con), (char *)&read_counter);
2746 i = init_ssl_connection(con);
2747 BIO_set_callback_arg(SSL_get_rbio(con), NULL);
2748
2749 /*
2750 * If initialization fails without reads, then
2751 * there was a fatal error in configuration.
2752 */
2753 if (i <= 0 && read_counter == 0) {
2754 ret = -1;
2755 goto err;
2756 }
2757 if (i < 0) {
2758 ret = 0;
2759 goto err;
2760 } else if (i == 0) {
2761 ret = 1;
2762 goto err;
2763 }
2764 } else {
2765 again:
2766 i = SSL_read(con, (char *)buf, bufsize);
2767 #ifndef OPENSSL_NO_SRP
2768 while (SSL_get_error(con, i) == SSL_ERROR_WANT_X509_LOOKUP) {
2769 BIO_printf(bio_s_out, "LOOKUP renego during read\n");
2770
2771 lookup_srp_user(&srp_callback_parm, bio_s_out);
2772
2773 i = SSL_read(con, (char *)buf, bufsize);
2774 }
2775 #endif
2776 switch (SSL_get_error(con, i)) {
2777 case SSL_ERROR_NONE:
2778 #ifdef CHARSET_EBCDIC
2779 ascii2ebcdic(buf, buf, i);
2780 #endif
2781 raw_write_stdout(buf, (unsigned int)i);
2782 (void)BIO_flush(bio_s_out);
2783 if (SSL_has_pending(con))
2784 goto again;
2785 break;
2786 case SSL_ERROR_WANT_ASYNC:
2787 BIO_printf(bio_s_out, "Read BLOCK (Async)\n");
2788 (void)BIO_flush(bio_s_out);
2789 wait_for_async(con);
2790 break;
2791 case SSL_ERROR_WANT_WRITE:
2792 case SSL_ERROR_WANT_READ:
2793 BIO_printf(bio_s_out, "Read BLOCK\n");
2794 (void)BIO_flush(bio_s_out);
2795 break;
2796 case SSL_ERROR_WANT_ASYNC_JOB:
2797 /*
2798 * This shouldn't ever happen in s_server. Treat as an error
2799 */
2800 case SSL_ERROR_SYSCALL:
2801 case SSL_ERROR_SSL:
2802 BIO_printf(bio_s_out, "ERROR\n");
2803 (void)BIO_flush(bio_s_out);
2804 ERR_print_errors(bio_err);
2805 ret = 1;
2806 goto err;
2807 case SSL_ERROR_ZERO_RETURN:
2808 BIO_printf(bio_s_out, "DONE\n");
2809 (void)BIO_flush(bio_s_out);
2810 ret = 1;
2811 goto err;
2812 }
2813 }
2814 }
2815 }
2816 err:
2817 if (con != NULL) {
2818 BIO_printf(bio_s_out, "shutting down SSL\n");
2819 do_ssl_shutdown(con);
2820 SSL_free(con);
2821 }
2822 BIO_printf(bio_s_out, "CONNECTION CLOSED\n");
2823 OPENSSL_clear_free(buf, bufsize);
2824 return ret;
2825 }
2826
close_accept_socket(void)2827 static void close_accept_socket(void)
2828 {
2829 BIO_printf(bio_err, "shutdown accept socket\n");
2830 if (accept_socket >= 0) {
2831 BIO_closesocket(accept_socket);
2832 }
2833 }
2834
is_retryable(SSL * con,int i)2835 static int is_retryable(SSL *con, int i)
2836 {
2837 int err = SSL_get_error(con, i);
2838
2839 /* If it's not a fatal error, it must be retryable */
2840 return (err != SSL_ERROR_SSL)
2841 && (err != SSL_ERROR_SYSCALL)
2842 && (err != SSL_ERROR_ZERO_RETURN);
2843 }
2844
init_ssl_connection(SSL * con)2845 static int init_ssl_connection(SSL *con)
2846 {
2847 int i;
2848 long verify_err;
2849 int retry = 0;
2850
2851 if (dtlslisten || stateless) {
2852 BIO_ADDR *client = NULL;
2853
2854 if (dtlslisten) {
2855 if ((client = BIO_ADDR_new()) == NULL) {
2856 BIO_printf(bio_err, "ERROR - memory\n");
2857 return 0;
2858 }
2859 i = DTLSv1_listen(con, client);
2860 } else {
2861 i = SSL_stateless(con);
2862 }
2863 if (i > 0) {
2864 BIO *wbio;
2865 int fd = -1;
2866
2867 if (dtlslisten) {
2868 wbio = SSL_get_wbio(con);
2869 if (wbio) {
2870 BIO_get_fd(wbio, &fd);
2871 }
2872
2873 if (!wbio || BIO_connect(fd, client, 0) == 0) {
2874 BIO_printf(bio_err, "ERROR - unable to connect\n");
2875 BIO_ADDR_free(client);
2876 return 0;
2877 }
2878
2879 (void)BIO_ctrl_set_connected(wbio, client);
2880 BIO_ADDR_free(client);
2881 dtlslisten = 0;
2882 } else {
2883 stateless = 0;
2884 }
2885 i = SSL_accept(con);
2886 } else {
2887 BIO_ADDR_free(client);
2888 }
2889 } else {
2890 do {
2891 i = SSL_accept(con);
2892
2893 if (i <= 0)
2894 retry = is_retryable(con, i);
2895 #ifdef CERT_CB_TEST_RETRY
2896 {
2897 while (i <= 0
2898 && SSL_get_error(con, i) == SSL_ERROR_WANT_X509_LOOKUP
2899 && SSL_get_state(con) == TLS_ST_SR_CLNT_HELLO) {
2900 BIO_printf(bio_err,
2901 "LOOKUP from certificate callback during accept\n");
2902 i = SSL_accept(con);
2903 if (i <= 0)
2904 retry = is_retryable(con, i);
2905 }
2906 }
2907 #endif
2908
2909 #ifndef OPENSSL_NO_SRP
2910 while (i <= 0
2911 && SSL_get_error(con, i) == SSL_ERROR_WANT_X509_LOOKUP) {
2912 BIO_printf(bio_s_out, "LOOKUP during accept %s\n",
2913 srp_callback_parm.login);
2914
2915 lookup_srp_user(&srp_callback_parm, bio_s_out);
2916
2917 i = SSL_accept(con);
2918 if (i <= 0)
2919 retry = is_retryable(con, i);
2920 }
2921 #endif
2922 } while (i < 0 && SSL_waiting_for_async(con));
2923 }
2924
2925 if (i <= 0) {
2926 if (((dtlslisten || stateless) && i == 0)
2927 || (!dtlslisten && !stateless && retry)) {
2928 BIO_printf(bio_s_out, "DELAY\n");
2929 return 1;
2930 }
2931
2932 BIO_printf(bio_err, "ERROR\n");
2933
2934 verify_err = SSL_get_verify_result(con);
2935 if (verify_err != X509_V_OK) {
2936 BIO_printf(bio_err, "verify error:%s\n",
2937 X509_verify_cert_error_string(verify_err));
2938 }
2939 /* Always print any error messages */
2940 ERR_print_errors(bio_err);
2941 return 0;
2942 }
2943
2944 print_connection_info(con);
2945 return 1;
2946 }
2947
print_connection_info(SSL * con)2948 static void print_connection_info(SSL *con)
2949 {
2950 const char *str;
2951 X509 *peer;
2952 char buf[BUFSIZ];
2953 #if !defined(OPENSSL_NO_NEXTPROTONEG)
2954 const unsigned char *next_proto_neg;
2955 unsigned next_proto_neg_len;
2956 #endif
2957 unsigned char *exportedkeymat;
2958 int i;
2959
2960 if (s_brief)
2961 print_ssl_summary(con);
2962
2963 PEM_write_bio_SSL_SESSION(bio_s_out, SSL_get_session(con));
2964
2965 peer = SSL_get0_peer_certificate(con);
2966 if (peer != NULL) {
2967 BIO_printf(bio_s_out, "Client certificate\n");
2968 PEM_write_bio_X509(bio_s_out, peer);
2969 dump_cert_text(bio_s_out, peer);
2970 peer = NULL;
2971 }
2972
2973 if (SSL_get_shared_ciphers(con, buf, sizeof(buf)) != NULL)
2974 BIO_printf(bio_s_out, "Shared ciphers:%s\n", buf);
2975 str = SSL_CIPHER_get_name(SSL_get_current_cipher(con));
2976 ssl_print_sigalgs(bio_s_out, con);
2977 #ifndef OPENSSL_NO_EC
2978 ssl_print_point_formats(bio_s_out, con);
2979 ssl_print_groups(bio_s_out, con, 0);
2980 #endif
2981 print_ca_names(bio_s_out, con);
2982 BIO_printf(bio_s_out, "CIPHER is %s\n", (str != NULL) ? str : "(NONE)");
2983
2984 #if !defined(OPENSSL_NO_NEXTPROTONEG)
2985 SSL_get0_next_proto_negotiated(con, &next_proto_neg, &next_proto_neg_len);
2986 if (next_proto_neg) {
2987 BIO_printf(bio_s_out, "NEXTPROTO is ");
2988 BIO_write(bio_s_out, next_proto_neg, next_proto_neg_len);
2989 BIO_printf(bio_s_out, "\n");
2990 }
2991 #endif
2992 #ifndef OPENSSL_NO_SRTP
2993 {
2994 SRTP_PROTECTION_PROFILE *srtp_profile
2995 = SSL_get_selected_srtp_profile(con);
2996
2997 if (srtp_profile)
2998 BIO_printf(bio_s_out, "SRTP Extension negotiated, profile=%s\n",
2999 srtp_profile->name);
3000 }
3001 #endif
3002 if (SSL_session_reused(con))
3003 BIO_printf(bio_s_out, "Reused session-id\n");
3004 BIO_printf(bio_s_out, "Secure Renegotiation IS%s supported\n",
3005 SSL_get_secure_renegotiation_support(con) ? "" : " NOT");
3006 if ((SSL_get_options(con) & SSL_OP_NO_RENEGOTIATION))
3007 BIO_printf(bio_s_out, "Renegotiation is DISABLED\n");
3008
3009 if (keymatexportlabel != NULL) {
3010 BIO_printf(bio_s_out, "Keying material exporter:\n");
3011 BIO_printf(bio_s_out, " Label: '%s'\n", keymatexportlabel);
3012 BIO_printf(bio_s_out, " Length: %i bytes\n", keymatexportlen);
3013 exportedkeymat = app_malloc(keymatexportlen, "export key");
3014 if (SSL_export_keying_material(con, exportedkeymat,
3015 keymatexportlen,
3016 keymatexportlabel,
3017 strlen(keymatexportlabel),
3018 NULL, 0, 0) <= 0) {
3019 BIO_printf(bio_s_out, " Error\n");
3020 } else {
3021 BIO_printf(bio_s_out, " Keying material: ");
3022 for (i = 0; i < keymatexportlen; i++)
3023 BIO_printf(bio_s_out, "%02X", exportedkeymat[i]);
3024 BIO_printf(bio_s_out, "\n");
3025 }
3026 OPENSSL_free(exportedkeymat);
3027 }
3028 #ifndef OPENSSL_NO_KTLS
3029 if (BIO_get_ktls_send(SSL_get_wbio(con)))
3030 BIO_printf(bio_err, "Using Kernel TLS for sending\n");
3031 if (BIO_get_ktls_recv(SSL_get_rbio(con)))
3032 BIO_printf(bio_err, "Using Kernel TLS for receiving\n");
3033 #endif
3034
3035 (void)BIO_flush(bio_s_out);
3036 }
3037
www_body(int s,int stype,int prot,unsigned char * context)3038 static int www_body(int s, int stype, int prot, unsigned char *context)
3039 {
3040 char *buf = NULL;
3041 int ret = 1;
3042 int i, j, k, dot;
3043 SSL *con;
3044 const SSL_CIPHER *c;
3045 BIO *io, *ssl_bio, *sbio;
3046 #ifdef RENEG
3047 int total_bytes = 0;
3048 #endif
3049 int width;
3050 #ifndef OPENSSL_NO_KTLS
3051 int use_sendfile_for_req = use_sendfile;
3052 #endif
3053 fd_set readfds;
3054 const char *opmode;
3055 #ifdef CHARSET_EBCDIC
3056 BIO *filter;
3057 #endif
3058
3059 /* Set width for a select call if needed */
3060 width = s + 1;
3061
3062 /* as we use BIO_gets(), and it always null terminates data, we need
3063 * to allocate 1 byte longer buffer to fit the full 2^14 byte record */
3064 buf = app_malloc(bufsize + 1, "server www buffer");
3065 io = BIO_new(BIO_f_buffer());
3066 ssl_bio = BIO_new(BIO_f_ssl());
3067 if ((io == NULL) || (ssl_bio == NULL))
3068 goto err;
3069
3070 if (s_nbio) {
3071 if (!BIO_socket_nbio(s, 1))
3072 ERR_print_errors(bio_err);
3073 else if (!s_quiet)
3074 BIO_printf(bio_err, "Turned on non blocking io\n");
3075 }
3076
3077 /* lets make the output buffer a reasonable size */
3078 if (BIO_set_write_buffer_size(io, bufsize) <= 0)
3079 goto err;
3080
3081 if ((con = SSL_new(ctx)) == NULL)
3082 goto err;
3083
3084 if (s_tlsextdebug) {
3085 SSL_set_tlsext_debug_callback(con, tlsext_cb);
3086 SSL_set_tlsext_debug_arg(con, bio_s_out);
3087 }
3088
3089 if (context != NULL
3090 && !SSL_set_session_id_context(con, context,
3091 strlen((char *)context))) {
3092 SSL_free(con);
3093 goto err;
3094 }
3095
3096 sbio = BIO_new_socket(s, BIO_NOCLOSE);
3097 if (sbio == NULL) {
3098 SSL_free(con);
3099 goto err;
3100 }
3101
3102 if (s_nbio_test) {
3103 BIO *test;
3104
3105 test = BIO_new(BIO_f_nbio_test());
3106 if (test == NULL) {
3107 SSL_free(con);
3108 BIO_free(sbio);
3109 goto err;
3110 }
3111
3112 sbio = BIO_push(test, sbio);
3113 }
3114 SSL_set_bio(con, sbio, sbio);
3115 SSL_set_accept_state(con);
3116
3117 /* No need to free |con| after this. Done by BIO_free(ssl_bio) */
3118 BIO_set_ssl(ssl_bio, con, BIO_CLOSE);
3119 BIO_push(io, ssl_bio);
3120 ssl_bio = NULL;
3121 #ifdef CHARSET_EBCDIC
3122 filter = BIO_new(BIO_f_ebcdic_filter());
3123 if (filter == NULL)
3124 goto err;
3125
3126 io = BIO_push(filter, io);
3127 #endif
3128
3129 if (s_debug) {
3130 BIO_set_callback_ex(SSL_get_rbio(con), bio_dump_callback);
3131 BIO_set_callback_arg(SSL_get_rbio(con), (char *)bio_s_out);
3132 }
3133 if (s_msg) {
3134 #ifndef OPENSSL_NO_SSL_TRACE
3135 if (s_msg == 2)
3136 SSL_set_msg_callback(con, SSL_trace);
3137 else
3138 #endif
3139 SSL_set_msg_callback(con, msg_cb);
3140 SSL_set_msg_callback_arg(con, bio_s_msg ? bio_s_msg : bio_s_out);
3141 }
3142
3143 for (;;) {
3144 i = BIO_gets(io, buf, bufsize + 1);
3145 if (i < 0) { /* error */
3146 if (!BIO_should_retry(io) && !SSL_waiting_for_async(con)) {
3147 if (!s_quiet)
3148 ERR_print_errors(bio_err);
3149 goto err;
3150 } else {
3151 BIO_printf(bio_s_out, "read R BLOCK\n");
3152 #ifndef OPENSSL_NO_SRP
3153 if (BIO_should_io_special(io)
3154 && BIO_get_retry_reason(io) == BIO_RR_SSL_X509_LOOKUP) {
3155 BIO_printf(bio_s_out, "LOOKUP renego during read\n");
3156
3157 lookup_srp_user(&srp_callback_parm, bio_s_out);
3158
3159 continue;
3160 }
3161 #endif
3162 ossl_sleep(1000);
3163 continue;
3164 }
3165 } else if (i == 0) { /* end of input */
3166 ret = 1;
3167 goto end;
3168 }
3169
3170 /* else we have data */
3171 if (((www == 1) && (strncmp("GET ", buf, 4) == 0)) ||
3172 ((www == 2) && (strncmp("GET /stats ", buf, 11) == 0))) {
3173 char *p;
3174 X509 *peer = NULL;
3175 STACK_OF(SSL_CIPHER) *sk;
3176 static const char *space = " ";
3177
3178 if (www == 1 && strncmp("GET /reneg", buf, 10) == 0) {
3179 if (strncmp("GET /renegcert", buf, 14) == 0)
3180 SSL_set_verify(con,
3181 SSL_VERIFY_PEER | SSL_VERIFY_CLIENT_ONCE,
3182 NULL);
3183 i = SSL_renegotiate(con);
3184 BIO_printf(bio_s_out, "SSL_renegotiate -> %d\n", i);
3185 /* Send the HelloRequest */
3186 i = SSL_do_handshake(con);
3187 if (i <= 0) {
3188 BIO_printf(bio_s_out, "SSL_do_handshake() Retval %d\n",
3189 SSL_get_error(con, i));
3190 ERR_print_errors(bio_err);
3191 goto err;
3192 }
3193 /* Wait for a ClientHello to come back */
3194 FD_ZERO(&readfds);
3195 openssl_fdset(s, &readfds);
3196 i = select(width, (void *)&readfds, NULL, NULL, NULL);
3197 if (i <= 0 || !FD_ISSET(s, &readfds)) {
3198 BIO_printf(bio_s_out,
3199 "Error waiting for client response\n");
3200 ERR_print_errors(bio_err);
3201 goto err;
3202 }
3203 /*
3204 * We're not actually expecting any data here and we ignore
3205 * any that is sent. This is just to force the handshake that
3206 * we're expecting to come from the client. If they haven't
3207 * sent one there's not much we can do.
3208 */
3209 BIO_gets(io, buf, bufsize + 1);
3210 }
3211
3212 BIO_puts(io,
3213 "HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n");
3214 BIO_puts(io, "<HTML><BODY BGCOLOR=\"#ffffff\">\n");
3215 BIO_puts(io, "<pre>\n");
3216 /* BIO_puts(io, OpenSSL_version(OPENSSL_VERSION)); */
3217 BIO_puts(io, "\n");
3218 for (i = 0; i < local_argc; i++) {
3219 const char *myp;
3220 for (myp = local_argv[i]; *myp; myp++)
3221 switch (*myp) {
3222 case '<':
3223 BIO_puts(io, "<");
3224 break;
3225 case '>':
3226 BIO_puts(io, ">");
3227 break;
3228 case '&':
3229 BIO_puts(io, "&");
3230 break;
3231 default:
3232 BIO_write(io, myp, 1);
3233 break;
3234 }
3235 BIO_write(io, " ", 1);
3236 }
3237 BIO_puts(io, "\n");
3238
3239 BIO_printf(io,
3240 "Secure Renegotiation IS%s supported\n",
3241 SSL_get_secure_renegotiation_support(con) ?
3242 "" : " NOT");
3243
3244 /*
3245 * The following is evil and should not really be done
3246 */
3247 BIO_printf(io, "Ciphers supported in s_server binary\n");
3248 sk = SSL_get_ciphers(con);
3249 j = sk_SSL_CIPHER_num(sk);
3250 for (i = 0; i < j; i++) {
3251 c = sk_SSL_CIPHER_value(sk, i);
3252 BIO_printf(io, "%-11s:%-25s ",
3253 SSL_CIPHER_get_version(c), SSL_CIPHER_get_name(c));
3254 if ((((i + 1) % 2) == 0) && (i + 1 != j))
3255 BIO_puts(io, "\n");
3256 }
3257 BIO_puts(io, "\n");
3258 p = SSL_get_shared_ciphers(con, buf, bufsize);
3259 if (p != NULL) {
3260 BIO_printf(io,
3261 "---\nCiphers common between both SSL end points:\n");
3262 j = i = 0;
3263 while (*p) {
3264 if (*p == ':') {
3265 BIO_write(io, space, 26 - j);
3266 i++;
3267 j = 0;
3268 BIO_write(io, ((i % 3) ? " " : "\n"), 1);
3269 } else {
3270 BIO_write(io, p, 1);
3271 j++;
3272 }
3273 p++;
3274 }
3275 BIO_puts(io, "\n");
3276 }
3277 ssl_print_sigalgs(io, con);
3278 #ifndef OPENSSL_NO_EC
3279 ssl_print_groups(io, con, 0);
3280 #endif
3281 print_ca_names(io, con);
3282 BIO_printf(io, (SSL_session_reused(con)
3283 ? "---\nReused, " : "---\nNew, "));
3284 c = SSL_get_current_cipher(con);
3285 BIO_printf(io, "%s, Cipher is %s\n",
3286 SSL_CIPHER_get_version(c), SSL_CIPHER_get_name(c));
3287 SSL_SESSION_print(io, SSL_get_session(con));
3288 BIO_printf(io, "---\n");
3289 print_stats(io, SSL_get_SSL_CTX(con));
3290 BIO_printf(io, "---\n");
3291 peer = SSL_get0_peer_certificate(con);
3292 if (peer != NULL) {
3293 BIO_printf(io, "Client certificate\n");
3294 X509_print(io, peer);
3295 PEM_write_bio_X509(io, peer);
3296 peer = NULL;
3297 } else {
3298 BIO_puts(io, "no client certificate available\n");
3299 }
3300 BIO_puts(io, "</pre></BODY></HTML>\r\n\r\n");
3301 break;
3302 } else if ((www == 2 || www == 3)
3303 && (strncmp("GET /", buf, 5) == 0)) {
3304 BIO *file;
3305 char *p, *e;
3306 static const char *text =
3307 "HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n";
3308
3309 /* skip the '/' */
3310 p = &(buf[5]);
3311
3312 dot = 1;
3313 for (e = p; *e != '\0'; e++) {
3314 if (e[0] == ' ')
3315 break;
3316
3317 if (e[0] == ':') {
3318 /* Windows drive. We treat this the same way as ".." */
3319 dot = -1;
3320 break;
3321 }
3322
3323 switch (dot) {
3324 case 1:
3325 dot = (e[0] == '.') ? 2 : 0;
3326 break;
3327 case 2:
3328 dot = (e[0] == '.') ? 3 : 0;
3329 break;
3330 case 3:
3331 dot = (e[0] == '/' || e[0] == '\\') ? -1 : 0;
3332 break;
3333 }
3334 if (dot == 0)
3335 dot = (e[0] == '/' || e[0] == '\\') ? 1 : 0;
3336 }
3337 dot = (dot == 3) || (dot == -1); /* filename contains ".."
3338 * component */
3339
3340 if (*e == '\0') {
3341 BIO_puts(io, text);
3342 BIO_printf(io, "'%s' is an invalid file name\r\n", p);
3343 break;
3344 }
3345 *e = '\0';
3346
3347 if (dot) {
3348 BIO_puts(io, text);
3349 BIO_printf(io, "'%s' contains '..' or ':'\r\n", p);
3350 break;
3351 }
3352
3353 if (*p == '/' || *p == '\\') {
3354 BIO_puts(io, text);
3355 BIO_printf(io, "'%s' is an invalid path\r\n", p);
3356 break;
3357 }
3358
3359 /* if a directory, do the index thang */
3360 if (app_isdir(p) > 0) {
3361 BIO_puts(io, text);
3362 BIO_printf(io, "'%s' is a directory\r\n", p);
3363 break;
3364 }
3365
3366 opmode = (http_server_binmode == 1) ? "rb" : "r";
3367 if ((file = BIO_new_file(p, opmode)) == NULL) {
3368 BIO_puts(io, text);
3369 BIO_printf(io, "Error opening '%s' mode='%s'\r\n", p, opmode);
3370 ERR_print_errors(io);
3371 break;
3372 }
3373
3374 if (!s_quiet)
3375 BIO_printf(bio_err, "FILE:%s\n", p);
3376
3377 if (www == 2) {
3378 i = strlen(p);
3379 if (((i > 5) && (strcmp(&(p[i - 5]), ".html") == 0)) ||
3380 ((i > 4) && (strcmp(&(p[i - 4]), ".php") == 0)) ||
3381 ((i > 4) && (strcmp(&(p[i - 4]), ".htm") == 0)))
3382 BIO_puts(io,
3383 "HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n");
3384 else
3385 BIO_puts(io,
3386 "HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n");
3387 }
3388 /* send the file */
3389 #ifndef OPENSSL_NO_KTLS
3390 if (use_sendfile_for_req && !BIO_get_ktls_send(SSL_get_wbio(con))) {
3391 BIO_printf(bio_err, "Warning: sendfile requested but KTLS is not available\n");
3392 use_sendfile_for_req = 0;
3393 }
3394 if (use_sendfile_for_req) {
3395 FILE *fp = NULL;
3396 int fd;
3397 struct stat st;
3398 off_t offset = 0;
3399 size_t filesize;
3400
3401 BIO_get_fp(file, &fp);
3402 fd = fileno(fp);
3403 if (fstat(fd, &st) < 0) {
3404 BIO_printf(io, "Error fstat '%s'\r\n", p);
3405 ERR_print_errors(io);
3406 goto write_error;
3407 }
3408
3409 filesize = st.st_size;
3410 if (((int)BIO_flush(io)) < 0)
3411 goto write_error;
3412
3413 for (;;) {
3414 i = SSL_sendfile(con, fd, offset, filesize, 0);
3415 if (i < 0) {
3416 BIO_printf(io, "Error SSL_sendfile '%s'\r\n", p);
3417 ERR_print_errors(io);
3418 break;
3419 } else {
3420 offset += i;
3421 filesize -= i;
3422 }
3423
3424 if (filesize <= 0) {
3425 if (!s_quiet)
3426 BIO_printf(bio_err, "KTLS SENDFILE '%s' OK\n", p);
3427
3428 break;
3429 }
3430 }
3431 } else
3432 #endif
3433 {
3434 for (;;) {
3435 i = BIO_read(file, buf, bufsize);
3436 if (i <= 0)
3437 break;
3438
3439 #ifdef RENEG
3440 total_bytes += i;
3441 BIO_printf(bio_err, "%d\n", i);
3442 if (total_bytes > 3 * 1024) {
3443 total_bytes = 0;
3444 BIO_printf(bio_err, "RENEGOTIATE\n");
3445 SSL_renegotiate(con);
3446 }
3447 #endif
3448
3449 for (j = 0; j < i;) {
3450 #ifdef RENEG
3451 static count = 0;
3452 if (++count == 13)
3453 SSL_renegotiate(con);
3454 #endif
3455 k = BIO_write(io, &(buf[j]), i - j);
3456 if (k <= 0) {
3457 if (!BIO_should_retry(io)
3458 && !SSL_waiting_for_async(con)) {
3459 goto write_error;
3460 } else {
3461 BIO_printf(bio_s_out, "rwrite W BLOCK\n");
3462 }
3463 } else {
3464 j += k;
3465 }
3466 }
3467 }
3468 }
3469 write_error:
3470 BIO_free(file);
3471 break;
3472 }
3473 }
3474
3475 for (;;) {
3476 i = (int)BIO_flush(io);
3477 if (i <= 0) {
3478 if (!BIO_should_retry(io))
3479 break;
3480 } else
3481 break;
3482 }
3483 end:
3484 /* make sure we re-use sessions */
3485 do_ssl_shutdown(con);
3486
3487 err:
3488 OPENSSL_free(buf);
3489 BIO_free(ssl_bio);
3490 BIO_free_all(io);
3491 return ret;
3492 }
3493
rev_body(int s,int stype,int prot,unsigned char * context)3494 static int rev_body(int s, int stype, int prot, unsigned char *context)
3495 {
3496 char *buf = NULL;
3497 int i;
3498 int ret = 1;
3499 SSL *con;
3500 BIO *io, *ssl_bio, *sbio;
3501 #ifdef CHARSET_EBCDIC
3502 BIO *filter;
3503 #endif
3504
3505 /* as we use BIO_gets(), and it always null terminates data, we need
3506 * to allocate 1 byte longer buffer to fit the full 2^14 byte record */
3507 buf = app_malloc(bufsize + 1, "server rev buffer");
3508 io = BIO_new(BIO_f_buffer());
3509 ssl_bio = BIO_new(BIO_f_ssl());
3510 if ((io == NULL) || (ssl_bio == NULL))
3511 goto err;
3512
3513 /* lets make the output buffer a reasonable size */
3514 if (BIO_set_write_buffer_size(io, bufsize) <= 0)
3515 goto err;
3516
3517 if ((con = SSL_new(ctx)) == NULL)
3518 goto err;
3519
3520 if (s_tlsextdebug) {
3521 SSL_set_tlsext_debug_callback(con, tlsext_cb);
3522 SSL_set_tlsext_debug_arg(con, bio_s_out);
3523 }
3524 if (context != NULL
3525 && !SSL_set_session_id_context(con, context,
3526 strlen((char *)context))) {
3527 SSL_free(con);
3528 ERR_print_errors(bio_err);
3529 goto err;
3530 }
3531
3532 sbio = BIO_new_socket(s, BIO_NOCLOSE);
3533 if (sbio == NULL) {
3534 SSL_free(con);
3535 ERR_print_errors(bio_err);
3536 goto err;
3537 }
3538
3539 SSL_set_bio(con, sbio, sbio);
3540 SSL_set_accept_state(con);
3541
3542 /* No need to free |con| after this. Done by BIO_free(ssl_bio) */
3543 BIO_set_ssl(ssl_bio, con, BIO_CLOSE);
3544 BIO_push(io, ssl_bio);
3545 ssl_bio = NULL;
3546 #ifdef CHARSET_EBCDIC
3547 filter = BIO_new(BIO_f_ebcdic_filter());
3548 if (filter == NULL)
3549 goto err;
3550
3551 io = BIO_push(filter, io);
3552 #endif
3553
3554 if (s_debug) {
3555 BIO_set_callback_ex(SSL_get_rbio(con), bio_dump_callback);
3556 BIO_set_callback_arg(SSL_get_rbio(con), (char *)bio_s_out);
3557 }
3558 if (s_msg) {
3559 #ifndef OPENSSL_NO_SSL_TRACE
3560 if (s_msg == 2)
3561 SSL_set_msg_callback(con, SSL_trace);
3562 else
3563 #endif
3564 SSL_set_msg_callback(con, msg_cb);
3565 SSL_set_msg_callback_arg(con, bio_s_msg ? bio_s_msg : bio_s_out);
3566 }
3567
3568 for (;;) {
3569 i = BIO_do_handshake(io);
3570 if (i > 0)
3571 break;
3572 if (!BIO_should_retry(io)) {
3573 BIO_puts(bio_err, "CONNECTION FAILURE\n");
3574 ERR_print_errors(bio_err);
3575 goto end;
3576 }
3577 #ifndef OPENSSL_NO_SRP
3578 if (BIO_should_io_special(io)
3579 && BIO_get_retry_reason(io) == BIO_RR_SSL_X509_LOOKUP) {
3580 BIO_printf(bio_s_out, "LOOKUP renego during accept\n");
3581
3582 lookup_srp_user(&srp_callback_parm, bio_s_out);
3583
3584 continue;
3585 }
3586 #endif
3587 }
3588 BIO_printf(bio_err, "CONNECTION ESTABLISHED\n");
3589 print_ssl_summary(con);
3590
3591 for (;;) {
3592 i = BIO_gets(io, buf, bufsize + 1);
3593 if (i < 0) { /* error */
3594 if (!BIO_should_retry(io)) {
3595 if (!s_quiet)
3596 ERR_print_errors(bio_err);
3597 goto err;
3598 } else {
3599 BIO_printf(bio_s_out, "read R BLOCK\n");
3600 #ifndef OPENSSL_NO_SRP
3601 if (BIO_should_io_special(io)
3602 && BIO_get_retry_reason(io) == BIO_RR_SSL_X509_LOOKUP) {
3603 BIO_printf(bio_s_out, "LOOKUP renego during read\n");
3604
3605 lookup_srp_user(&srp_callback_parm, bio_s_out);
3606
3607 continue;
3608 }
3609 #endif
3610 ossl_sleep(1000);
3611 continue;
3612 }
3613 } else if (i == 0) { /* end of input */
3614 ret = 1;
3615 BIO_printf(bio_err, "CONNECTION CLOSED\n");
3616 goto end;
3617 } else {
3618 char *p = buf + i - 1;
3619 while (i && (*p == '\n' || *p == '\r')) {
3620 p--;
3621 i--;
3622 }
3623 if (!s_ign_eof && (i == 5) && (strncmp(buf, "CLOSE", 5) == 0)) {
3624 ret = 1;
3625 BIO_printf(bio_err, "CONNECTION CLOSED\n");
3626 goto end;
3627 }
3628 BUF_reverse((unsigned char *)buf, NULL, i);
3629 buf[i] = '\n';
3630 BIO_write(io, buf, i + 1);
3631 for (;;) {
3632 i = BIO_flush(io);
3633 if (i > 0)
3634 break;
3635 if (!BIO_should_retry(io))
3636 goto end;
3637 }
3638 }
3639 }
3640 end:
3641 /* make sure we re-use sessions */
3642 do_ssl_shutdown(con);
3643
3644 err:
3645
3646 OPENSSL_free(buf);
3647 BIO_free(ssl_bio);
3648 BIO_free_all(io);
3649 return ret;
3650 }
3651
3652 #define MAX_SESSION_ID_ATTEMPTS 10
generate_session_id(SSL * ssl,unsigned char * id,unsigned int * id_len)3653 static int generate_session_id(SSL *ssl, unsigned char *id,
3654 unsigned int *id_len)
3655 {
3656 unsigned int count = 0;
3657 unsigned int session_id_prefix_len = strlen(session_id_prefix);
3658
3659 do {
3660 if (RAND_bytes(id, *id_len) <= 0)
3661 return 0;
3662 /*
3663 * Prefix the session_id with the required prefix. NB: If our prefix
3664 * is too long, clip it - but there will be worse effects anyway, eg.
3665 * the server could only possibly create 1 session ID (ie. the
3666 * prefix!) so all future session negotiations will fail due to
3667 * conflicts.
3668 */
3669 memcpy(id, session_id_prefix,
3670 (session_id_prefix_len < *id_len) ?
3671 session_id_prefix_len : *id_len);
3672 }
3673 while (SSL_has_matching_session_id(ssl, id, *id_len) &&
3674 (++count < MAX_SESSION_ID_ATTEMPTS));
3675 if (count >= MAX_SESSION_ID_ATTEMPTS)
3676 return 0;
3677 return 1;
3678 }
3679
3680 /*
3681 * By default s_server uses an in-memory cache which caches SSL_SESSION
3682 * structures without any serialization. This hides some bugs which only
3683 * become apparent in deployed servers. By implementing a basic external
3684 * session cache some issues can be debugged using s_server.
3685 */
3686
3687 typedef struct simple_ssl_session_st {
3688 unsigned char *id;
3689 unsigned int idlen;
3690 unsigned char *der;
3691 int derlen;
3692 struct simple_ssl_session_st *next;
3693 } simple_ssl_session;
3694
3695 static simple_ssl_session *first = NULL;
3696
add_session(SSL * ssl,SSL_SESSION * session)3697 static int add_session(SSL *ssl, SSL_SESSION *session)
3698 {
3699 simple_ssl_session *sess = app_malloc(sizeof(*sess), "get session");
3700 unsigned char *p;
3701
3702 SSL_SESSION_get_id(session, &sess->idlen);
3703 sess->derlen = i2d_SSL_SESSION(session, NULL);
3704 if (sess->derlen < 0) {
3705 BIO_printf(bio_err, "Error encoding session\n");
3706 OPENSSL_free(sess);
3707 return 0;
3708 }
3709
3710 sess->id = OPENSSL_memdup(SSL_SESSION_get_id(session, NULL), sess->idlen);
3711 sess->der = app_malloc(sess->derlen, "get session buffer");
3712 if (!sess->id) {
3713 BIO_printf(bio_err, "Out of memory adding to external cache\n");
3714 OPENSSL_free(sess->id);
3715 OPENSSL_free(sess->der);
3716 OPENSSL_free(sess);
3717 return 0;
3718 }
3719 p = sess->der;
3720
3721 /* Assume it still works. */
3722 if (i2d_SSL_SESSION(session, &p) != sess->derlen) {
3723 BIO_printf(bio_err, "Unexpected session encoding length\n");
3724 OPENSSL_free(sess->id);
3725 OPENSSL_free(sess->der);
3726 OPENSSL_free(sess);
3727 return 0;
3728 }
3729
3730 sess->next = first;
3731 first = sess;
3732 BIO_printf(bio_err, "New session added to external cache\n");
3733 return 0;
3734 }
3735
get_session(SSL * ssl,const unsigned char * id,int idlen,int * do_copy)3736 static SSL_SESSION *get_session(SSL *ssl, const unsigned char *id, int idlen,
3737 int *do_copy)
3738 {
3739 simple_ssl_session *sess;
3740 *do_copy = 0;
3741 for (sess = first; sess; sess = sess->next) {
3742 if (idlen == (int)sess->idlen && !memcmp(sess->id, id, idlen)) {
3743 const unsigned char *p = sess->der;
3744 BIO_printf(bio_err, "Lookup session: cache hit\n");
3745 return d2i_SSL_SESSION(NULL, &p, sess->derlen);
3746 }
3747 }
3748 BIO_printf(bio_err, "Lookup session: cache miss\n");
3749 return NULL;
3750 }
3751
del_session(SSL_CTX * sctx,SSL_SESSION * session)3752 static void del_session(SSL_CTX *sctx, SSL_SESSION *session)
3753 {
3754 simple_ssl_session *sess, *prev = NULL;
3755 const unsigned char *id;
3756 unsigned int idlen;
3757 id = SSL_SESSION_get_id(session, &idlen);
3758 for (sess = first; sess; sess = sess->next) {
3759 if (idlen == sess->idlen && !memcmp(sess->id, id, idlen)) {
3760 if (prev)
3761 prev->next = sess->next;
3762 else
3763 first = sess->next;
3764 OPENSSL_free(sess->id);
3765 OPENSSL_free(sess->der);
3766 OPENSSL_free(sess);
3767 return;
3768 }
3769 prev = sess;
3770 }
3771 }
3772
init_session_cache_ctx(SSL_CTX * sctx)3773 static void init_session_cache_ctx(SSL_CTX *sctx)
3774 {
3775 SSL_CTX_set_session_cache_mode(sctx,
3776 SSL_SESS_CACHE_NO_INTERNAL |
3777 SSL_SESS_CACHE_SERVER);
3778 SSL_CTX_sess_set_new_cb(sctx, add_session);
3779 SSL_CTX_sess_set_get_cb(sctx, get_session);
3780 SSL_CTX_sess_set_remove_cb(sctx, del_session);
3781 }
3782
free_sessions(void)3783 static void free_sessions(void)
3784 {
3785 simple_ssl_session *sess, *tsess;
3786 for (sess = first; sess;) {
3787 OPENSSL_free(sess->id);
3788 OPENSSL_free(sess->der);
3789 tsess = sess;
3790 sess = sess->next;
3791 OPENSSL_free(tsess);
3792 }
3793 first = NULL;
3794 }
3795
3796 #endif /* OPENSSL_NO_SOCK */
3797