1/*
2 * Copyright 1995-2023 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 "e_os.h"
13
14/* Or gethostname won't be declared properly on Linux and GNU platforms. */
15#ifndef _BSD_SOURCE
16# define _BSD_SOURCE 1
17#endif
18#ifndef _DEFAULT_SOURCE
19# define _DEFAULT_SOURCE 1
20#endif
21
22#include <assert.h>
23#include <errno.h>
24#include <limits.h>
25#include <stdio.h>
26#include <stdlib.h>
27#include <string.h>
28#include <time.h>
29
30#include "internal/nelem.h"
31
32#ifdef OPENSSL_SYS_VMS
33/*
34 * Or isascii won't be declared properly on VMS (at least with DECompHP C).
35 */
36# define _XOPEN_SOURCE 500
37#endif
38
39#include <ctype.h>
40
41#include <openssl/bio.h>
42#include <openssl/crypto.h>
43#include <openssl/evp.h>
44#include <openssl/x509.h>
45#include <openssl/x509v3.h>
46#include <openssl/ssl.h>
47#include <openssl/err.h>
48#include <openssl/rand.h>
49#include <openssl/rsa.h>
50#ifndef OPENSSL_NO_DSA
51# include <openssl/dsa.h>
52#endif
53#include <openssl/bn.h>
54#ifndef OPENSSL_NO_CT
55# include <openssl/ct.h>
56#endif
57#include <openssl/provider.h>
58#include "testutil.h"
59
60/*
61 * Or gethostname won't be declared properly
62 * on Compaq platforms (at least with DEC C).
63 * Do not try to put it earlier, or IPv6 includes
64 * get screwed...
65 */
66#define _XOPEN_SOURCE_EXTENDED  1
67
68#ifdef OPENSSL_SYS_WINDOWS
69# include <winsock.h>
70#else
71# include <unistd.h>
72#endif
73
74#include "helpers/predefined_dhparams.h"
75
76static SSL_CTX *s_ctx = NULL;
77static SSL_CTX *s_ctx2 = NULL;
78
79/*
80 * There is really no standard for this, so let's assign something
81 * only for this test
82 */
83#define COMP_ZLIB       1
84
85static int verify_callback(int ok, X509_STORE_CTX *ctx);
86static int app_verify_callback(X509_STORE_CTX *ctx, void *arg);
87#define APP_CALLBACK_STRING "Test Callback Argument"
88struct app_verify_arg {
89    char *string;
90    int app_verify;
91};
92
93static char *psk_key = NULL;    /* by default PSK is not used */
94#ifndef OPENSSL_NO_PSK
95static unsigned int psk_client_callback(SSL *ssl, const char *hint,
96                                        char *identity,
97                                        unsigned int max_identity_len,
98                                        unsigned char *psk,
99                                        unsigned int max_psk_len);
100static unsigned int psk_server_callback(SSL *ssl, const char *identity,
101                                        unsigned char *psk,
102                                        unsigned int max_psk_len);
103#endif
104
105static BIO *bio_stdout = NULL;
106
107#ifndef OPENSSL_NO_NEXTPROTONEG
108/* Note that this code assumes that this is only a one element list: */
109static const char NEXT_PROTO_STRING[] = "\x09testproto";
110static int npn_client = 0;
111static int npn_server = 0;
112static int npn_server_reject = 0;
113
114static int cb_client_npn(SSL *s, unsigned char **out, unsigned char *outlen,
115                         const unsigned char *in, unsigned int inlen,
116                         void *arg)
117{
118    /*
119     * This callback only returns the protocol string, rather than a length
120     * prefixed set. We assume that NEXT_PROTO_STRING is a one element list
121     * and remove the first byte to chop off the length prefix.
122     */
123    *out = (unsigned char *)NEXT_PROTO_STRING + 1;
124    *outlen = sizeof(NEXT_PROTO_STRING) - 2;
125    return SSL_TLSEXT_ERR_OK;
126}
127
128static int cb_server_npn(SSL *s, const unsigned char **data,
129                         unsigned int *len, void *arg)
130{
131    *data = (const unsigned char *)NEXT_PROTO_STRING;
132    *len = sizeof(NEXT_PROTO_STRING) - 1;
133    return SSL_TLSEXT_ERR_OK;
134}
135
136static int cb_server_rejects_npn(SSL *s, const unsigned char **data,
137                                 unsigned int *len, void *arg)
138{
139    return SSL_TLSEXT_ERR_NOACK;
140}
141
142static int verify_npn(SSL *client, SSL *server)
143{
144    const unsigned char *client_s;
145    unsigned client_len;
146    const unsigned char *server_s;
147    unsigned server_len;
148
149    SSL_get0_next_proto_negotiated(client, &client_s, &client_len);
150    SSL_get0_next_proto_negotiated(server, &server_s, &server_len);
151
152    if (client_len) {
153        BIO_printf(bio_stdout, "Client NPN: ");
154        BIO_write(bio_stdout, client_s, client_len);
155        BIO_printf(bio_stdout, "\n");
156    }
157
158    if (server_len) {
159        BIO_printf(bio_stdout, "Server NPN: ");
160        BIO_write(bio_stdout, server_s, server_len);
161        BIO_printf(bio_stdout, "\n");
162    }
163
164    /*
165     * If an NPN string was returned, it must be the protocol that we
166     * expected to negotiate.
167     */
168    if (client_len && (client_len != sizeof(NEXT_PROTO_STRING) - 2 ||
169                       memcmp(client_s, NEXT_PROTO_STRING + 1, client_len)))
170        return -1;
171    if (server_len && (server_len != sizeof(NEXT_PROTO_STRING) - 2 ||
172                       memcmp(server_s, NEXT_PROTO_STRING + 1, server_len)))
173        return -1;
174
175    if (!npn_client && client_len)
176        return -1;
177    if (!npn_server && server_len)
178        return -1;
179    if (npn_server_reject && server_len)
180        return -1;
181    if (npn_client && npn_server && (!client_len || !server_len))
182        return -1;
183
184    return 0;
185}
186#endif
187
188static const char *alpn_client;
189static char *alpn_server;
190static char *alpn_server2;
191static const char *alpn_expected;
192static unsigned char *alpn_selected;
193static const char *server_min_proto;
194static const char *server_max_proto;
195static const char *client_min_proto;
196static const char *client_max_proto;
197static const char *should_negotiate;
198static const char *sn_client;
199static const char *sn_server1;
200static const char *sn_server2;
201static int sn_expect = 0;
202static const char *server_sess_out;
203static const char *server_sess_in;
204static const char *client_sess_out;
205static const char *client_sess_in;
206static SSL_SESSION *server_sess;
207static SSL_SESSION *client_sess;
208
209static int servername_cb(SSL *s, int *ad, void *arg)
210{
211    const char *servername = SSL_get_servername(s, TLSEXT_NAMETYPE_host_name);
212    if (sn_server2 == NULL) {
213        BIO_printf(bio_stdout, "Servername 2 is NULL\n");
214        return SSL_TLSEXT_ERR_NOACK;
215    }
216
217    if (servername) {
218        if (s_ctx2 != NULL && sn_server2 != NULL &&
219            !OPENSSL_strcasecmp(servername, sn_server2)) {
220            BIO_printf(bio_stdout, "Switching server context.\n");
221            SSL_set_SSL_CTX(s, s_ctx2);
222        }
223    }
224    return SSL_TLSEXT_ERR_OK;
225}
226static int verify_servername(SSL *client, SSL *server)
227{
228    /* just need to see if sn_context is what we expect */
229    SSL_CTX* ctx = SSL_get_SSL_CTX(server);
230    if (sn_expect == 0)
231        return 0;
232    if (sn_expect == 1 && ctx == s_ctx)
233        return 0;
234    if (sn_expect == 2 && ctx == s_ctx2)
235        return 0;
236    BIO_printf(bio_stdout, "Servername: expected context %d\n", sn_expect);
237    if (ctx == s_ctx2)
238        BIO_printf(bio_stdout, "Servername: context is 2\n");
239    else if (ctx == s_ctx)
240        BIO_printf(bio_stdout, "Servername: context is 1\n");
241    else
242        BIO_printf(bio_stdout, "Servername: context is unknown\n");
243    return -1;
244}
245
246
247/*-
248 * next_protos_parse parses a comma separated list of strings into a string
249 * in a format suitable for passing to SSL_CTX_set_next_protos_advertised.
250 *   outlen: (output) set to the length of the resulting buffer on success.
251 *   in: a NUL terminated string like "abc,def,ghi"
252 *
253 *   returns: a malloced buffer or NULL on failure.
254 */
255static unsigned char *next_protos_parse(size_t *outlen,
256                                        const char *in)
257{
258    size_t len;
259    unsigned char *out;
260    size_t i, start = 0;
261
262    len = strlen(in);
263    if (len >= 65535)
264        return NULL;
265
266    out = OPENSSL_malloc(strlen(in) + 1);
267    if (!out)
268        return NULL;
269
270    for (i = 0; i <= len; ++i) {
271        if (i == len || in[i] == ',') {
272            if (i - start > 255) {
273                OPENSSL_free(out);
274                return NULL;
275            }
276            out[start] = (unsigned char)(i - start);
277            start = i + 1;
278        } else
279            out[i + 1] = in[i];
280    }
281
282    *outlen = len + 1;
283    return out;
284}
285
286static int cb_server_alpn(SSL *s, const unsigned char **out,
287                          unsigned char *outlen, const unsigned char *in,
288                          unsigned int inlen, void *arg)
289{
290    unsigned char *protos;
291    size_t protos_len;
292    char* alpn_str = arg;
293
294    protos = next_protos_parse(&protos_len, alpn_str);
295    if (protos == NULL) {
296        fprintf(stderr, "failed to parser ALPN server protocol string: %s\n",
297                alpn_str);
298        abort();
299    }
300
301    if (SSL_select_next_proto
302        ((unsigned char **)out, outlen, protos, protos_len, in,
303         inlen) != OPENSSL_NPN_NEGOTIATED) {
304        OPENSSL_free(protos);
305        return SSL_TLSEXT_ERR_NOACK;
306    }
307
308    /*
309     * Make a copy of the selected protocol which will be freed in
310     * verify_alpn.
311     */
312    alpn_selected = OPENSSL_malloc(*outlen);
313    if (alpn_selected == NULL) {
314        fprintf(stderr, "failed to allocate memory\n");
315        OPENSSL_free(protos);
316        abort();
317    }
318    memcpy(alpn_selected, *out, *outlen);
319    *out = alpn_selected;
320
321    OPENSSL_free(protos);
322    return SSL_TLSEXT_ERR_OK;
323}
324
325static int verify_alpn(SSL *client, SSL *server)
326{
327    const unsigned char *client_proto, *server_proto;
328    unsigned int client_proto_len = 0, server_proto_len = 0;
329    SSL_get0_alpn_selected(client, &client_proto, &client_proto_len);
330    SSL_get0_alpn_selected(server, &server_proto, &server_proto_len);
331
332    OPENSSL_free(alpn_selected);
333    alpn_selected = NULL;
334
335    if (client_proto_len != server_proto_len) {
336        BIO_printf(bio_stdout, "ALPN selected protocols differ!\n");
337        goto err;
338    }
339
340    if (client_proto != NULL &&
341        memcmp(client_proto, server_proto, client_proto_len) != 0) {
342        BIO_printf(bio_stdout, "ALPN selected protocols differ!\n");
343        goto err;
344    }
345
346    if (client_proto_len > 0 && alpn_expected == NULL) {
347        BIO_printf(bio_stdout, "ALPN unexpectedly negotiated\n");
348        goto err;
349    }
350
351    if (alpn_expected != NULL &&
352        (client_proto_len != strlen(alpn_expected) ||
353         memcmp(client_proto, alpn_expected, client_proto_len) != 0)) {
354        BIO_printf(bio_stdout,
355                   "ALPN selected protocols not equal to expected protocol: %s\n",
356                   alpn_expected);
357        goto err;
358    }
359
360    return 0;
361
362 err:
363    BIO_printf(bio_stdout, "ALPN results: client: '");
364    BIO_write(bio_stdout, client_proto, client_proto_len);
365    BIO_printf(bio_stdout, "', server: '");
366    BIO_write(bio_stdout, server_proto, server_proto_len);
367    BIO_printf(bio_stdout, "'\n");
368    BIO_printf(bio_stdout, "ALPN configured: client: '%s', server: '",
369                   alpn_client);
370    if (SSL_get_SSL_CTX(server) == s_ctx2) {
371        BIO_printf(bio_stdout, "%s'\n",
372                   alpn_server2);
373    } else {
374        BIO_printf(bio_stdout, "%s'\n",
375                   alpn_server);
376    }
377    return -1;
378}
379
380/*
381 * WARNING : below extension types are *NOT* IETF assigned, and could
382 * conflict if these types are reassigned and handled specially by OpenSSL
383 * in the future
384 */
385#define TACK_EXT_TYPE 62208
386#define CUSTOM_EXT_TYPE_0 1000
387#define CUSTOM_EXT_TYPE_1 1001
388#define CUSTOM_EXT_TYPE_2 1002
389#define CUSTOM_EXT_TYPE_3 1003
390
391static const char custom_ext_cli_string[] = "abc";
392static const char custom_ext_srv_string[] = "defg";
393
394/* These set from cmdline */
395static char *serverinfo_file = NULL;
396static int serverinfo_sct = 0;
397static int serverinfo_tack = 0;
398
399/* These set based on extension callbacks */
400static int serverinfo_sct_seen = 0;
401static int serverinfo_tack_seen = 0;
402static int serverinfo_other_seen = 0;
403
404/* This set from cmdline */
405static int custom_ext = 0;
406
407/* This set based on extension callbacks */
408static int custom_ext_error = 0;
409
410static int serverinfo_cli_parse_cb(SSL *s, unsigned int ext_type,
411                                   const unsigned char *in, size_t inlen,
412                                   int *al, void *arg)
413{
414    if (ext_type == TLSEXT_TYPE_signed_certificate_timestamp)
415        serverinfo_sct_seen++;
416    else if (ext_type == TACK_EXT_TYPE)
417        serverinfo_tack_seen++;
418    else
419        serverinfo_other_seen++;
420    return 1;
421}
422
423static int verify_serverinfo(void)
424{
425    if (serverinfo_sct != serverinfo_sct_seen)
426        return -1;
427    if (serverinfo_tack != serverinfo_tack_seen)
428        return -1;
429    if (serverinfo_other_seen)
430        return -1;
431    return 0;
432}
433
434/*-
435 * Four test cases for custom extensions:
436 * 0 - no ClientHello extension or ServerHello response
437 * 1 - ClientHello with "abc", no response
438 * 2 - ClientHello with "abc", empty response
439 * 3 - ClientHello with "abc", "defg" response
440 */
441
442static int custom_ext_0_cli_add_cb(SSL *s, unsigned int ext_type,
443                                   const unsigned char **out,
444                                   size_t *outlen, int *al, void *arg)
445{
446    if (ext_type != CUSTOM_EXT_TYPE_0)
447        custom_ext_error = 1;
448    return 0;                   /* Don't send an extension */
449}
450
451static int custom_ext_0_cli_parse_cb(SSL *s, unsigned int ext_type,
452                                     const unsigned char *in,
453                                     size_t inlen, int *al, void *arg)
454{
455    return 1;
456}
457
458static int custom_ext_1_cli_add_cb(SSL *s, unsigned int ext_type,
459                                   const unsigned char **out,
460                                   size_t *outlen, int *al, void *arg)
461{
462    if (ext_type != CUSTOM_EXT_TYPE_1)
463        custom_ext_error = 1;
464    *out = (const unsigned char *)custom_ext_cli_string;
465    *outlen = strlen(custom_ext_cli_string);
466    return 1;                   /* Send "abc" */
467}
468
469static int custom_ext_1_cli_parse_cb(SSL *s, unsigned int ext_type,
470                                     const unsigned char *in,
471                                     size_t inlen, int *al, void *arg)
472{
473    return 1;
474}
475
476static int custom_ext_2_cli_add_cb(SSL *s, unsigned int ext_type,
477                                   const unsigned char **out,
478                                   size_t *outlen, int *al, void *arg)
479{
480    if (ext_type != CUSTOM_EXT_TYPE_2)
481        custom_ext_error = 1;
482    *out = (const unsigned char *)custom_ext_cli_string;
483    *outlen = strlen(custom_ext_cli_string);
484    return 1;                   /* Send "abc" */
485}
486
487static int custom_ext_2_cli_parse_cb(SSL *s, unsigned int ext_type,
488                                     const unsigned char *in,
489                                     size_t inlen, int *al, void *arg)
490{
491    if (ext_type != CUSTOM_EXT_TYPE_2)
492        custom_ext_error = 1;
493    if (inlen != 0)
494        custom_ext_error = 1;   /* Should be empty response */
495    return 1;
496}
497
498static int custom_ext_3_cli_add_cb(SSL *s, unsigned int ext_type,
499                                   const unsigned char **out,
500                                   size_t *outlen, int *al, void *arg)
501{
502    if (ext_type != CUSTOM_EXT_TYPE_3)
503        custom_ext_error = 1;
504    *out = (const unsigned char *)custom_ext_cli_string;
505    *outlen = strlen(custom_ext_cli_string);
506    return 1;                   /* Send "abc" */
507}
508
509static int custom_ext_3_cli_parse_cb(SSL *s, unsigned int ext_type,
510                                     const unsigned char *in,
511                                     size_t inlen, int *al, void *arg)
512{
513    if (ext_type != CUSTOM_EXT_TYPE_3)
514        custom_ext_error = 1;
515    if (inlen != strlen(custom_ext_srv_string))
516        custom_ext_error = 1;
517    if (memcmp(custom_ext_srv_string, in, inlen) != 0)
518        custom_ext_error = 1;   /* Check for "defg" */
519    return 1;
520}
521
522/*
523 * custom_ext_0_cli_add_cb returns 0 - the server won't receive a callback
524 * for this extension
525 */
526static int custom_ext_0_srv_parse_cb(SSL *s, unsigned int ext_type,
527                                     const unsigned char *in,
528                                     size_t inlen, int *al, void *arg)
529{
530    custom_ext_error = 1;
531    return 1;
532}
533
534/* 'add' callbacks are only called if the 'parse' callback is called */
535static int custom_ext_0_srv_add_cb(SSL *s, unsigned int ext_type,
536                                   const unsigned char **out,
537                                   size_t *outlen, int *al, void *arg)
538{
539    /* Error: should not have been called */
540    custom_ext_error = 1;
541    return 0;                   /* Don't send an extension */
542}
543
544static int custom_ext_1_srv_parse_cb(SSL *s, unsigned int ext_type,
545                                     const unsigned char *in,
546                                     size_t inlen, int *al, void *arg)
547{
548    if (ext_type != CUSTOM_EXT_TYPE_1)
549        custom_ext_error = 1;
550    /* Check for "abc" */
551    if (inlen != strlen(custom_ext_cli_string))
552        custom_ext_error = 1;
553    if (memcmp(in, custom_ext_cli_string, inlen) != 0)
554        custom_ext_error = 1;
555    return 1;
556}
557
558static int custom_ext_1_srv_add_cb(SSL *s, unsigned int ext_type,
559                                   const unsigned char **out,
560                                   size_t *outlen, int *al, void *arg)
561{
562    return 0;                   /* Don't send an extension */
563}
564
565static int custom_ext_2_srv_parse_cb(SSL *s, unsigned int ext_type,
566                                     const unsigned char *in,
567                                     size_t inlen, int *al, void *arg)
568{
569    if (ext_type != CUSTOM_EXT_TYPE_2)
570        custom_ext_error = 1;
571    /* Check for "abc" */
572    if (inlen != strlen(custom_ext_cli_string))
573        custom_ext_error = 1;
574    if (memcmp(in, custom_ext_cli_string, inlen) != 0)
575        custom_ext_error = 1;
576    return 1;
577}
578
579static int custom_ext_2_srv_add_cb(SSL *s, unsigned int ext_type,
580                                   const unsigned char **out,
581                                   size_t *outlen, int *al, void *arg)
582{
583    *out = NULL;
584    *outlen = 0;
585    return 1;                   /* Send empty extension */
586}
587
588static int custom_ext_3_srv_parse_cb(SSL *s, unsigned int ext_type,
589                                     const unsigned char *in,
590                                     size_t inlen, int *al, void *arg)
591{
592    if (ext_type != CUSTOM_EXT_TYPE_3)
593        custom_ext_error = 1;
594    /* Check for "abc" */
595    if (inlen != strlen(custom_ext_cli_string))
596        custom_ext_error = 1;
597    if (memcmp(in, custom_ext_cli_string, inlen) != 0)
598        custom_ext_error = 1;
599    return 1;
600}
601
602static int custom_ext_3_srv_add_cb(SSL *s, unsigned int ext_type,
603                                   const unsigned char **out,
604                                   size_t *outlen, int *al, void *arg)
605{
606    *out = (const unsigned char *)custom_ext_srv_string;
607    *outlen = strlen(custom_ext_srv_string);
608    return 1;                   /* Send "defg" */
609}
610
611static char *cipher = NULL;
612static char *ciphersuites = NULL;
613static int verbose = 0;
614static int debug = 0;
615
616int doit_localhost(SSL *s_ssl, SSL *c_ssl, int family,
617                   long bytes, clock_t *s_time, clock_t *c_time);
618int doit_biopair(SSL *s_ssl, SSL *c_ssl, long bytes, clock_t *s_time,
619                 clock_t *c_time);
620int doit(SSL *s_ssl, SSL *c_ssl, long bytes);
621
622static void sv_usage(void)
623{
624    fprintf(stderr, "usage: ssltest [args ...]\n");
625    fprintf(stderr, "\n");
626    fprintf(stderr, " -server_auth  - check server certificate\n");
627    fprintf(stderr, " -client_auth  - do client authentication\n");
628    fprintf(stderr, " -v            - more output\n");
629    fprintf(stderr, " -d            - debug output\n");
630    fprintf(stderr, " -reuse        - use session-id reuse\n");
631    fprintf(stderr, " -num <val>    - number of connections to perform\n");
632    fprintf(stderr,
633            " -bytes <val>  - number of bytes to swap between client/server\n");
634#ifndef OPENSSL_NO_DH
635    fprintf(stderr,
636            " -dhe512       - use 512 bit key for DHE (to test failure)\n");
637    fprintf(stderr,
638            " -dhe1024dsa   - use 1024 bit key (with 160-bit subprime) for DHE\n");
639    fprintf(stderr,
640            " -dhe2048      - use 2048 bit key (safe prime) for DHE (default, no-op)\n");
641    fprintf(stderr,
642            " -dhe4096      - use 4096 bit key (safe prime) for DHE\n");
643#endif
644    fprintf(stderr, " -no_dhe       - disable DHE\n");
645#ifndef OPENSSL_NO_EC
646    fprintf(stderr, " -no_ecdhe     - disable ECDHE\n");
647#endif
648#ifndef OPENSSL_NO_PSK
649    fprintf(stderr, " -psk arg      - PSK in hex (without 0x)\n");
650#endif
651#ifndef OPENSSL_NO_SSL3
652    fprintf(stderr, " -ssl3         - use SSLv3\n");
653#endif
654#ifndef OPENSSL_NO_TLS1
655    fprintf(stderr, " -tls1         - use TLSv1\n");
656#endif
657#ifndef OPENSSL_NO_TLS1_1
658    fprintf(stderr, " -tls1_1       - use TLSv1.1\n");
659#endif
660#ifndef OPENSSL_NO_TLS1_2
661    fprintf(stderr, " -tls1_2       - use TLSv1.2\n");
662#endif
663#ifndef OPENSSL_NO_DTLS
664    fprintf(stderr, " -dtls         - use DTLS\n");
665#ifndef OPENSSL_NO_DTLS1
666    fprintf(stderr, " -dtls1        - use DTLSv1\n");
667#endif
668#ifndef OPENSSL_NO_DTLS1_2
669    fprintf(stderr, " -dtls12       - use DTLSv1.2\n");
670#endif
671#endif
672    fprintf(stderr, " -CApath arg   - PEM format directory of CA's\n");
673    fprintf(stderr, " -CAfile arg   - PEM format file of CA's\n");
674    fprintf(stderr, " -s_cert arg   - Server certificate file\n");
675    fprintf(stderr,
676            " -s_key arg    - Server key file (default: same as -cert)\n");
677    fprintf(stderr, " -c_cert arg   - Client certificate file\n");
678    fprintf(stderr,
679            " -c_key arg    - Client key file (default: same as -c_cert)\n");
680    fprintf(stderr, " -cipher arg   - The TLSv1.2 and below cipher list\n");
681    fprintf(stderr, " -ciphersuites arg   - The TLSv1.3 ciphersuites\n");
682    fprintf(stderr, " -bio_pair     - Use BIO pairs\n");
683    fprintf(stderr, " -ipv4         - Use IPv4 connection on localhost\n");
684    fprintf(stderr, " -ipv6         - Use IPv6 connection on localhost\n");
685    fprintf(stderr, " -f            - Test even cases that can't work\n");
686    fprintf(stderr,
687            " -time         - measure processor time used by client and server\n");
688    fprintf(stderr, " -zlib         - use zlib compression\n");
689#ifndef OPENSSL_NO_NEXTPROTONEG
690    fprintf(stderr, " -npn_client - have client side offer NPN\n");
691    fprintf(stderr, " -npn_server - have server side offer NPN\n");
692    fprintf(stderr, " -npn_server_reject - have server reject NPN\n");
693#endif
694    fprintf(stderr, " -serverinfo_file file - have server use this file\n");
695    fprintf(stderr, " -serverinfo_sct  - have client offer and expect SCT\n");
696    fprintf(stderr,
697            " -serverinfo_tack - have client offer and expect TACK\n");
698    fprintf(stderr,
699            " -custom_ext - try various custom extension callbacks\n");
700    fprintf(stderr, " -alpn_client <string> - have client side offer ALPN\n");
701    fprintf(stderr, " -alpn_server <string> - have server side offer ALPN\n");
702    fprintf(stderr, " -alpn_server1 <string> - alias for -alpn_server\n");
703    fprintf(stderr, " -alpn_server2 <string> - have server side context 2 offer ALPN\n");
704    fprintf(stderr,
705            " -alpn_expected <string> - the ALPN protocol that should be negotiated\n");
706    fprintf(stderr, " -server_min_proto <string> - Minimum version the server should support\n");
707    fprintf(stderr, " -server_max_proto <string> - Maximum version the server should support\n");
708    fprintf(stderr, " -client_min_proto <string> - Minimum version the client should support\n");
709    fprintf(stderr, " -client_max_proto <string> - Maximum version the client should support\n");
710    fprintf(stderr, " -should_negotiate <string> - The version that should be negotiated, fail-client or fail-server\n");
711#ifndef OPENSSL_NO_CT
712    fprintf(stderr, " -noct         - no certificate transparency\n");
713    fprintf(stderr, " -requestct    - request certificate transparency\n");
714    fprintf(stderr, " -requirect    - require certificate transparency\n");
715#endif
716    fprintf(stderr, " -sn_client <string>  - have client request this servername\n");
717    fprintf(stderr, " -sn_server1 <string> - have server context 1 respond to this servername\n");
718    fprintf(stderr, " -sn_server2 <string> - have server context 2 respond to this servername\n");
719    fprintf(stderr, " -sn_expect1          - expected server 1\n");
720    fprintf(stderr, " -sn_expect2          - expected server 2\n");
721    fprintf(stderr, " -server_sess_out <file>    - Save the server session to a file\n");
722    fprintf(stderr, " -server_sess_in <file>     - Read the server session from a file\n");
723    fprintf(stderr, " -client_sess_out <file>    - Save the client session to a file\n");
724    fprintf(stderr, " -client_sess_in <file>     - Read the client session from a file\n");
725    fprintf(stderr, " -should_reuse <number>     - The expected state of reusing the session\n");
726    fprintf(stderr, " -no_ticket    - do not issue TLS session ticket\n");
727    fprintf(stderr, " -client_ktls  - try to enable client KTLS\n");
728    fprintf(stderr, " -server_ktls  - try to enable server KTLS\n");
729    fprintf(stderr, " -provider <name>    - Load the given provider into the library context\n");
730    fprintf(stderr, " -config <cnf>    - Load the given config file into the library context\n");
731}
732
733static void print_key_details(BIO *out, EVP_PKEY *key)
734{
735    int keyid = EVP_PKEY_get_id(key);
736
737#ifndef OPENSSL_NO_EC
738    if (keyid == EVP_PKEY_EC) {
739        char group[80];
740        size_t size;
741
742        if (!EVP_PKEY_get_group_name(key, group, sizeof(group), &size))
743            strcpy(group, "unknown group");
744        BIO_printf(out, "%d bits EC (%s)", EVP_PKEY_get_bits(key), group);
745    } else
746#endif
747    {
748        const char *algname;
749        switch (keyid) {
750        case EVP_PKEY_RSA:
751            algname = "RSA";
752            break;
753        case EVP_PKEY_DSA:
754            algname = "DSA";
755            break;
756        case EVP_PKEY_DH:
757            algname = "DH";
758            break;
759        default:
760            algname = OBJ_nid2sn(keyid);
761            break;
762        }
763        BIO_printf(out, "%d bits %s", EVP_PKEY_get_bits(key), algname);
764    }
765}
766
767static void print_details(SSL *c_ssl, const char *prefix)
768{
769    const SSL_CIPHER *ciph;
770    int mdnid;
771    X509 *cert;
772    EVP_PKEY *pkey;
773
774    ciph = SSL_get_current_cipher(c_ssl);
775    BIO_printf(bio_stdout, "%s%s, cipher %s %s",
776               prefix,
777               SSL_get_version(c_ssl),
778               SSL_CIPHER_get_version(ciph), SSL_CIPHER_get_name(ciph));
779    cert = SSL_get0_peer_certificate(c_ssl);
780    if (cert != NULL) {
781        EVP_PKEY* pubkey = X509_get0_pubkey(cert);
782
783        if (pubkey != NULL) {
784            BIO_puts(bio_stdout, ", ");
785            print_key_details(bio_stdout, pubkey);
786        }
787    }
788    if (SSL_get_peer_tmp_key(c_ssl, &pkey)) {
789        BIO_puts(bio_stdout, ", temp key: ");
790        print_key_details(bio_stdout, pkey);
791        EVP_PKEY_free(pkey);
792    }
793    if (SSL_get_peer_signature_nid(c_ssl, &mdnid))
794        BIO_printf(bio_stdout, ", digest=%s", OBJ_nid2sn(mdnid));
795    BIO_printf(bio_stdout, "\n");
796}
797
798/*
799 * protocol_from_string - converts a protocol version string to a number
800 *
801 * Returns -1 on failure or the version on success
802 */
803static int protocol_from_string(const char *value)
804{
805    struct protocol_versions {
806        const char *name;
807        int version;
808    };
809    static const struct protocol_versions versions[] = {
810        {"ssl3", SSL3_VERSION},
811        {"tls1", TLS1_VERSION},
812        {"tls1.1", TLS1_1_VERSION},
813        {"tls1.2", TLS1_2_VERSION},
814        {"tls1.3", TLS1_3_VERSION},
815        {"dtls1", DTLS1_VERSION},
816        {"dtls1.2", DTLS1_2_VERSION}};
817    size_t i;
818    size_t n = OSSL_NELEM(versions);
819
820    for (i = 0; i < n; i++)
821        if (strcmp(versions[i].name, value) == 0)
822            return versions[i].version;
823    return -1;
824}
825
826static SSL_SESSION *read_session(const char *filename)
827{
828    SSL_SESSION *sess;
829    BIO *f = BIO_new_file(filename, "r");
830
831    if (f == NULL) {
832        BIO_printf(bio_err, "Can't open session file %s\n", filename);
833        ERR_print_errors(bio_err);
834        return NULL;
835    }
836    sess = PEM_read_bio_SSL_SESSION(f, NULL, 0, NULL);
837    if (sess == NULL) {
838        BIO_printf(bio_err, "Can't parse session file %s\n", filename);
839        ERR_print_errors(bio_err);
840    }
841    BIO_free(f);
842    return sess;
843}
844
845static int write_session(const char *filename, SSL_SESSION *sess)
846{
847    BIO *f;
848
849    if (sess == NULL) {
850        BIO_printf(bio_err, "No session information\n");
851        return 0;
852    }
853
854    f = BIO_new_file(filename, "w");
855    if (f == NULL) {
856        BIO_printf(bio_err, "Can't open session file %s\n", filename);
857        ERR_print_errors(bio_err);
858        return 0;
859    }
860    PEM_write_bio_SSL_SESSION(f, sess);
861    BIO_free(f);
862    return 1;
863}
864
865/*
866 * set_protocol_version - Sets protocol version minimum or maximum
867 *
868 * Returns 0 on failure and 1 on success
869 */
870static int set_protocol_version(const char *version, SSL *ssl, int setting)
871{
872    if (version != NULL) {
873        int ver = protocol_from_string(version);
874        if (ver < 0) {
875            BIO_printf(bio_err, "Error parsing: %s\n", version);
876            return 0;
877        }
878        return SSL_ctrl(ssl, setting, ver, NULL);
879    }
880    return 1;
881}
882
883int main(int argc, char *argv[])
884{
885    const char *CApath = NULL, *CAfile = NULL;
886    int badop = 0;
887    enum { BIO_MEM, BIO_PAIR, BIO_IPV4, BIO_IPV6 } bio_type = BIO_MEM;
888    int force = 0;
889    int dtls1 = 0, dtls12 = 0, dtls = 0, tls1 = 0, tls1_1 = 0, tls1_2 = 0, ssl3 = 0;
890    int ret = EXIT_FAILURE;
891    int client_auth = 0;
892    int server_auth = 0, i;
893    struct app_verify_arg app_verify_arg =
894        { APP_CALLBACK_STRING, 0 };
895    SSL_CTX *c_ctx = NULL;
896    const SSL_METHOD *meth = NULL;
897    SSL *c_ssl = NULL;
898    SSL *s_ssl = NULL;
899    int number = 1, reuse = 0;
900    int should_reuse = -1;
901    int no_ticket = 0;
902    int client_ktls = 0, server_ktls = 0;
903    long bytes = 256L;
904#ifndef OPENSSL_NO_DH
905    EVP_PKEY *dhpkey;
906    int dhe512 = 0, dhe1024dsa = 0, dhe4096 = 0;
907    int no_dhe = 0;
908#endif
909    int no_psk = 0;
910    int print_time = 0;
911    clock_t s_time = 0, c_time = 0;
912#ifndef OPENSSL_NO_COMP
913    int n, comp = 0;
914    COMP_METHOD *cm = NULL;
915    STACK_OF(SSL_COMP) *ssl_comp_methods = NULL;
916#endif
917    int no_protocol;
918    int min_version = 0, max_version = 0;
919#ifndef OPENSSL_NO_CT
920    /*
921     * Disable CT validation by default, because it will interfere with
922     * anything using custom extension handlers to deal with SCT extensions.
923     */
924    int ct_validation = 0;
925#endif
926    SSL_CONF_CTX *s_cctx = NULL, *c_cctx = NULL, *s_cctx2 = NULL;
927    STACK_OF(OPENSSL_STRING) *conf_args = NULL;
928    char *arg = NULL, *argn = NULL;
929    const char *provider = NULL, *config = NULL;
930    OSSL_PROVIDER *thisprov = NULL, *defctxnull = NULL;
931    OSSL_LIB_CTX *libctx = NULL;
932
933    verbose = 0;
934    debug = 0;
935
936    bio_err = BIO_new_fp(stderr, BIO_NOCLOSE | BIO_FP_TEXT);
937    bio_stdout = BIO_new_fp(stdout, BIO_NOCLOSE | BIO_FP_TEXT);
938
939    s_cctx = SSL_CONF_CTX_new();
940    s_cctx2 = SSL_CONF_CTX_new();
941    c_cctx = SSL_CONF_CTX_new();
942
943    if (!s_cctx || !c_cctx || !s_cctx2) {
944        ERR_print_errors(bio_err);
945        goto end;
946    }
947
948    SSL_CONF_CTX_set_flags(s_cctx,
949                           SSL_CONF_FLAG_CMDLINE | SSL_CONF_FLAG_SERVER |
950                           SSL_CONF_FLAG_CERTIFICATE |
951                           SSL_CONF_FLAG_REQUIRE_PRIVATE);
952    SSL_CONF_CTX_set_flags(s_cctx2,
953                           SSL_CONF_FLAG_CMDLINE | SSL_CONF_FLAG_SERVER |
954                           SSL_CONF_FLAG_CERTIFICATE |
955                           SSL_CONF_FLAG_REQUIRE_PRIVATE);
956    if (!SSL_CONF_CTX_set1_prefix(s_cctx, "-s_")) {
957        ERR_print_errors(bio_err);
958        goto end;
959    }
960    if (!SSL_CONF_CTX_set1_prefix(s_cctx2, "-s_")) {
961        ERR_print_errors(bio_err);
962        goto end;
963    }
964
965    SSL_CONF_CTX_set_flags(c_cctx,
966                           SSL_CONF_FLAG_CMDLINE | SSL_CONF_FLAG_CLIENT |
967                           SSL_CONF_FLAG_CERTIFICATE |
968                           SSL_CONF_FLAG_REQUIRE_PRIVATE);
969    if (!SSL_CONF_CTX_set1_prefix(c_cctx, "-c_")) {
970        ERR_print_errors(bio_err);
971        goto end;
972    }
973
974    argc--;
975    argv++;
976
977    while (argc >= 1) {
978        if (strcmp(*argv, "-F") == 0) {
979            fprintf(stderr,
980                    "not compiled with FIPS support, so exiting without running.\n");
981            EXIT(0);
982        } else if (strcmp(*argv, "-server_auth") == 0)
983            server_auth = 1;
984        else if (strcmp(*argv, "-client_auth") == 0)
985            client_auth = 1;
986        else if (strcmp(*argv, "-v") == 0)
987            verbose = 1;
988        else if (strcmp(*argv, "-d") == 0)
989            debug = 1;
990        else if (strcmp(*argv, "-reuse") == 0)
991            reuse = 1;
992        else if (strcmp(*argv, "-no_dhe") == 0)
993#ifdef OPENSSL_NO_DH
994            /* unused in this case */;
995#else
996            no_dhe = 1;
997        else if (strcmp(*argv, "-dhe512") == 0)
998            dhe512 = 1;
999        else if (strcmp(*argv, "-dhe1024dsa") == 0)
1000            dhe1024dsa = 1;
1001        else if (strcmp(*argv, "-dhe4096") == 0)
1002            dhe4096 = 1;
1003#endif
1004        else if (strcmp(*argv, "-no_ecdhe") == 0)
1005            /* obsolete */;
1006        else if (strcmp(*argv, "-psk") == 0) {
1007            if (--argc < 1)
1008                goto bad;
1009            psk_key = *(++argv);
1010#ifndef OPENSSL_NO_PSK
1011            if (strspn(psk_key, "abcdefABCDEF1234567890") != strlen(psk_key)) {
1012                BIO_printf(bio_err, "Not a hex number '%s'\n", *argv);
1013                goto bad;
1014            }
1015#else
1016            no_psk = 1;
1017#endif
1018        }
1019        else if (strcmp(*argv, "-tls1_2") == 0) {
1020            tls1_2 = 1;
1021        } else if (strcmp(*argv, "-tls1_1") == 0) {
1022            tls1_1 = 1;
1023        } else if (strcmp(*argv, "-tls1") == 0) {
1024            tls1 = 1;
1025        } else if (strcmp(*argv, "-ssl3") == 0) {
1026            ssl3 = 1;
1027        } else if (strcmp(*argv, "-dtls1") == 0) {
1028            dtls1 = 1;
1029        } else if (strcmp(*argv, "-dtls12") == 0) {
1030            dtls12 = 1;
1031        } else if (strcmp(*argv, "-dtls") == 0) {
1032            dtls = 1;
1033        } else if (strncmp(*argv, "-num", 4) == 0) {
1034            if (--argc < 1)
1035                goto bad;
1036            number = atoi(*(++argv));
1037            if (number == 0)
1038                number = 1;
1039        } else if (strcmp(*argv, "-bytes") == 0) {
1040            if (--argc < 1)
1041                goto bad;
1042            bytes = atol(*(++argv));
1043            if (bytes == 0L)
1044                bytes = 1L;
1045            i = strlen(argv[0]);
1046            if (argv[0][i - 1] == 'k')
1047                bytes *= 1024L;
1048            if (argv[0][i - 1] == 'm')
1049                bytes *= 1024L * 1024L;
1050        } else if (strcmp(*argv, "-cipher") == 0) {
1051            if (--argc < 1)
1052                goto bad;
1053            cipher = *(++argv);
1054        } else if (strcmp(*argv, "-ciphersuites") == 0) {
1055            if (--argc < 1)
1056                goto bad;
1057            ciphersuites = *(++argv);
1058        } else if (strcmp(*argv, "-CApath") == 0) {
1059            if (--argc < 1)
1060                goto bad;
1061            CApath = *(++argv);
1062        } else if (strcmp(*argv, "-CAfile") == 0) {
1063            if (--argc < 1)
1064                goto bad;
1065            CAfile = *(++argv);
1066        } else if (strcmp(*argv, "-bio_pair") == 0) {
1067            bio_type = BIO_PAIR;
1068        }
1069#ifndef OPENSSL_NO_SOCK
1070        else if (strcmp(*argv, "-ipv4") == 0) {
1071            bio_type = BIO_IPV4;
1072        } else if (strcmp(*argv, "-ipv6") == 0) {
1073            bio_type = BIO_IPV6;
1074        }
1075#endif
1076        else if (strcmp(*argv, "-f") == 0) {
1077            force = 1;
1078        } else if (strcmp(*argv, "-time") == 0) {
1079            print_time = 1;
1080        }
1081#ifndef OPENSSL_NO_CT
1082        else if (strcmp(*argv, "-noct") == 0) {
1083            ct_validation = 0;
1084        }
1085        else if (strcmp(*argv, "-ct") == 0) {
1086            ct_validation = 1;
1087        }
1088#endif
1089#ifndef OPENSSL_NO_COMP
1090        else if (strcmp(*argv, "-zlib") == 0) {
1091            comp = COMP_ZLIB;
1092        }
1093#endif
1094        else if (strcmp(*argv, "-app_verify") == 0) {
1095            app_verify_arg.app_verify = 1;
1096        }
1097#ifndef OPENSSL_NO_NEXTPROTONEG
1098          else if (strcmp(*argv, "-npn_client") == 0) {
1099            npn_client = 1;
1100        } else if (strcmp(*argv, "-npn_server") == 0) {
1101            npn_server = 1;
1102        } else if (strcmp(*argv, "-npn_server_reject") == 0) {
1103            npn_server_reject = 1;
1104        }
1105#endif
1106        else if (strcmp(*argv, "-serverinfo_sct") == 0) {
1107            serverinfo_sct = 1;
1108        } else if (strcmp(*argv, "-serverinfo_tack") == 0) {
1109            serverinfo_tack = 1;
1110        } else if (strcmp(*argv, "-serverinfo_file") == 0) {
1111            if (--argc < 1)
1112                goto bad;
1113            serverinfo_file = *(++argv);
1114        } else if (strcmp(*argv, "-custom_ext") == 0) {
1115            custom_ext = 1;
1116        } else if (strcmp(*argv, "-alpn_client") == 0) {
1117            if (--argc < 1)
1118                goto bad;
1119            alpn_client = *(++argv);
1120        } else if (strcmp(*argv, "-alpn_server") == 0 ||
1121                   strcmp(*argv, "-alpn_server1") == 0) {
1122            if (--argc < 1)
1123                goto bad;
1124            alpn_server = *(++argv);
1125        } else if (strcmp(*argv, "-alpn_server2") == 0) {
1126            if (--argc < 1)
1127                goto bad;
1128            alpn_server2 = *(++argv);
1129        } else if (strcmp(*argv, "-alpn_expected") == 0) {
1130            if (--argc < 1)
1131                goto bad;
1132            alpn_expected = *(++argv);
1133        } else if (strcmp(*argv, "-server_min_proto") == 0) {
1134            if (--argc < 1)
1135                goto bad;
1136            server_min_proto = *(++argv);
1137        } else if (strcmp(*argv, "-server_max_proto") == 0) {
1138            if (--argc < 1)
1139                goto bad;
1140            server_max_proto = *(++argv);
1141        } else if (strcmp(*argv, "-client_min_proto") == 0) {
1142            if (--argc < 1)
1143                goto bad;
1144            client_min_proto = *(++argv);
1145        } else if (strcmp(*argv, "-client_max_proto") == 0) {
1146            if (--argc < 1)
1147                goto bad;
1148            client_max_proto = *(++argv);
1149        } else if (strcmp(*argv, "-should_negotiate") == 0) {
1150            if (--argc < 1)
1151                goto bad;
1152            should_negotiate = *(++argv);
1153        } else if (strcmp(*argv, "-sn_client") == 0) {
1154            if (--argc < 1)
1155                goto bad;
1156            sn_client = *(++argv);
1157        } else if (strcmp(*argv, "-sn_server1") == 0) {
1158            if (--argc < 1)
1159                goto bad;
1160            sn_server1 = *(++argv);
1161        } else if (strcmp(*argv, "-sn_server2") == 0) {
1162            if (--argc < 1)
1163                goto bad;
1164            sn_server2 = *(++argv);
1165        } else if (strcmp(*argv, "-sn_expect1") == 0) {
1166            sn_expect = 1;
1167        } else if (strcmp(*argv, "-sn_expect2") == 0) {
1168            sn_expect = 2;
1169        } else if (strcmp(*argv, "-server_sess_out") == 0) {
1170            if (--argc < 1)
1171                goto bad;
1172            server_sess_out = *(++argv);
1173        } else if (strcmp(*argv, "-server_sess_in") == 0) {
1174            if (--argc < 1)
1175                goto bad;
1176            server_sess_in = *(++argv);
1177        } else if (strcmp(*argv, "-client_sess_out") == 0) {
1178            if (--argc < 1)
1179                goto bad;
1180            client_sess_out = *(++argv);
1181        } else if (strcmp(*argv, "-client_sess_in") == 0) {
1182            if (--argc < 1)
1183                goto bad;
1184            client_sess_in = *(++argv);
1185        } else if (strcmp(*argv, "-should_reuse") == 0) {
1186            if (--argc < 1)
1187                goto bad;
1188            should_reuse = !!atoi(*(++argv));
1189        } else if (strcmp(*argv, "-no_ticket") == 0) {
1190            no_ticket = 1;
1191        } else if (strcmp(*argv, "-client_ktls") == 0) {
1192            client_ktls = 1;
1193        } else if (strcmp(*argv, "-server_ktls") == 0) {
1194            server_ktls = 1;
1195        } else if (strcmp(*argv, "-provider") == 0) {
1196            if (--argc < 1)
1197                goto bad;
1198            provider = *(++argv);
1199        } else if (strcmp(*argv, "-config") == 0) {
1200            if (--argc < 1)
1201                goto bad;
1202            config = *(++argv);
1203        } else {
1204            int rv;
1205            arg = argv[0];
1206            argn = argv[1];
1207            /* Try to process command using SSL_CONF */
1208            rv = SSL_CONF_cmd_argv(c_cctx, &argc, &argv);
1209            /* If not processed try server */
1210            if (rv == 0)
1211                rv = SSL_CONF_cmd_argv(s_cctx, &argc, &argv);
1212            /* Recognised: store it for later use */
1213            if (rv > 0) {
1214                if (rv == 1)
1215                    argn = NULL;
1216                if (!conf_args) {
1217                    conf_args = sk_OPENSSL_STRING_new_null();
1218                    if (!conf_args)
1219                        goto end;
1220                }
1221                if (!sk_OPENSSL_STRING_push(conf_args, arg))
1222                    goto end;
1223                if (!sk_OPENSSL_STRING_push(conf_args, argn))
1224                    goto end;
1225                continue;
1226            }
1227            if (rv == -3)
1228                BIO_printf(bio_err, "Missing argument for %s\n", arg);
1229            else if (rv < 0)
1230                BIO_printf(bio_err, "Error with command %s\n", arg);
1231            else if (rv == 0)
1232                BIO_printf(bio_err, "unknown option %s\n", arg);
1233            badop = 1;
1234            break;
1235        }
1236        argc--;
1237        argv++;
1238    }
1239    if (badop) {
1240 bad:
1241        sv_usage();
1242        goto end;
1243    }
1244
1245    if (ssl3 + tls1 + tls1_1 + tls1_2 + dtls + dtls1 + dtls12 > 1) {
1246        fprintf(stderr, "At most one of -ssl3, -tls1, -tls1_1, -tls1_2, -dtls, -dtls1 or -dtls12 should "
1247                "be requested.\n");
1248        EXIT(1);
1249    }
1250
1251#ifdef OPENSSL_NO_SSL3
1252    if (ssl3)
1253        no_protocol = 1;
1254    else
1255#endif
1256#ifdef OPENSSL_NO_TLS1
1257    if (tls1)
1258        no_protocol = 1;
1259    else
1260#endif
1261#ifdef OPENSSL_NO_TLS1_1
1262    if (tls1_1)
1263        no_protocol = 1;
1264    else
1265#endif
1266#ifdef OPENSSL_NO_TLS1_2
1267    if (tls1_2)
1268        no_protocol = 1;
1269    else
1270#endif
1271#if defined(OPENSSL_NO_DTLS) || defined(OPENSSL_NO_DTLS1)
1272    if (dtls1)
1273        no_protocol = 1;
1274    else
1275#endif
1276#if defined(OPENSSL_NO_DTLS) || defined(OPENSSL_NO_DTLS1_2)
1277    if (dtls12)
1278        no_protocol = 1;
1279    else
1280#endif
1281        no_protocol = 0;
1282
1283    /*
1284     * Testing was requested for a compiled-out protocol (e.g. SSLv3).
1285     * Ideally, we would error out, but the generic test wrapper can't know
1286     * when to expect failure. So we do nothing and return success.
1287     */
1288    if (no_protocol) {
1289        fprintf(stderr, "Testing was requested for a disabled protocol. "
1290                "Skipping tests.\n");
1291        ret = EXIT_SUCCESS;
1292        goto end;
1293    }
1294
1295    if (!ssl3 && !tls1 && !tls1_1 && !tls1_2 && !dtls && !dtls1 && !dtls12 && number > 1
1296            && !reuse && !force) {
1297        fprintf(stderr, "This case cannot work.  Use -f to perform "
1298                "the test anyway (and\n-d to see what happens), "
1299                "or add one of -ssl3, -tls1, -tls1_1, -tls1_2, -dtls, -dtls1, -dtls12, -reuse\n"
1300                "to avoid protocol mismatch.\n");
1301        EXIT(1);
1302    }
1303
1304    if (print_time) {
1305        if (bio_type == BIO_MEM) {
1306            fprintf(stderr, "Using BIO pair (-bio_pair)\n");
1307            bio_type = BIO_PAIR;
1308        }
1309        if (number < 50 && !force)
1310            fprintf(stderr,
1311                    "Warning: For accurate timings, use more connections (e.g. -num 1000)\n");
1312    }
1313
1314#ifndef OPENSSL_NO_COMP
1315    if (comp == COMP_ZLIB)
1316        cm = COMP_zlib();
1317    if (cm != NULL) {
1318        if (COMP_get_type(cm) != NID_undef) {
1319            if (SSL_COMP_add_compression_method(comp, cm) != 0) {
1320                fprintf(stderr, "Failed to add compression method\n");
1321                ERR_print_errors_fp(stderr);
1322            }
1323        } else {
1324            fprintf(stderr,
1325                    "Warning: %s compression not supported\n",
1326                    comp == COMP_ZLIB ? "zlib" : "unknown");
1327            ERR_print_errors_fp(stderr);
1328        }
1329    }
1330    ssl_comp_methods = SSL_COMP_get_compression_methods();
1331    n = sk_SSL_COMP_num(ssl_comp_methods);
1332    if (n) {
1333        int j;
1334        printf("Available compression methods:");
1335        for (j = 0; j < n; j++) {
1336            SSL_COMP *c = sk_SSL_COMP_value(ssl_comp_methods, j);
1337            printf("  %s:%d", SSL_COMP_get0_name(c), SSL_COMP_get_id(c));
1338        }
1339        printf("\n");
1340    }
1341#endif
1342
1343#ifndef OPENSSL_NO_TLS
1344    meth = TLS_method();
1345    if (ssl3) {
1346        min_version = SSL3_VERSION;
1347        max_version = SSL3_VERSION;
1348    } else if (tls1) {
1349        min_version = TLS1_VERSION;
1350        max_version = TLS1_VERSION;
1351    } else if (tls1_1) {
1352        min_version = TLS1_1_VERSION;
1353        max_version = TLS1_1_VERSION;
1354    } else if (tls1_2) {
1355        min_version = TLS1_2_VERSION;
1356        max_version = TLS1_2_VERSION;
1357    } else {
1358        min_version = 0;
1359# if defined(OPENSSL_NO_EC) && defined(OPENSSL_NO_DH)
1360        /* We only have ec and dh based built-in groups for TLSv1.3 */
1361        max_version = TLS1_2_VERSION;
1362# else
1363        max_version = 0;
1364# endif
1365    }
1366#endif
1367#ifndef OPENSSL_NO_DTLS
1368    if (dtls || dtls1 || dtls12) {
1369        meth = DTLS_method();
1370        if (dtls1) {
1371            min_version = DTLS1_VERSION;
1372            max_version = DTLS1_VERSION;
1373        } else if (dtls12) {
1374            min_version = DTLS1_2_VERSION;
1375            max_version = DTLS1_2_VERSION;
1376        } else {
1377            min_version = 0;
1378            max_version = 0;
1379        }
1380    }
1381#endif
1382
1383    if (provider != NULL
1384            && !test_get_libctx(&libctx, &defctxnull, config, &thisprov, provider))
1385        goto end;
1386
1387    c_ctx = SSL_CTX_new_ex(libctx, NULL, meth);
1388    s_ctx = SSL_CTX_new_ex(libctx, NULL, meth);
1389    s_ctx2 = SSL_CTX_new_ex(libctx, NULL, meth); /* no SSL_CTX_dup! */
1390    if ((c_ctx == NULL) || (s_ctx == NULL) || (s_ctx2 == NULL)) {
1391        ERR_print_errors(bio_err);
1392        goto end;
1393    }
1394    /*
1395     * Since we will use low security ciphersuites and keys for testing set
1396     * security level to zero by default. Tests can override this by adding
1397     * "@SECLEVEL=n" to the cipher string.
1398     */
1399    SSL_CTX_set_security_level(c_ctx, 0);
1400    SSL_CTX_set_security_level(s_ctx, 0);
1401    SSL_CTX_set_security_level(s_ctx2, 0);
1402
1403    if (no_ticket) {
1404        SSL_CTX_set_options(c_ctx, SSL_OP_NO_TICKET);
1405        SSL_CTX_set_options(s_ctx, SSL_OP_NO_TICKET);
1406    }
1407
1408    if (SSL_CTX_set_min_proto_version(c_ctx, min_version) == 0)
1409        goto end;
1410    if (SSL_CTX_set_max_proto_version(c_ctx, max_version) == 0)
1411        goto end;
1412    if (SSL_CTX_set_min_proto_version(s_ctx, min_version) == 0)
1413        goto end;
1414    if (SSL_CTX_set_max_proto_version(s_ctx, max_version) == 0)
1415        goto end;
1416
1417    if (cipher != NULL) {
1418        if (strcmp(cipher, "") == 0) {
1419            if (!SSL_CTX_set_cipher_list(c_ctx, cipher)) {
1420                if (ERR_GET_REASON(ERR_peek_error()) == SSL_R_NO_CIPHER_MATCH) {
1421                    ERR_clear_error();
1422                } else {
1423                    ERR_print_errors(bio_err);
1424                    goto end;
1425                }
1426            } else {
1427                /* Should have failed when clearing all TLSv1.2 ciphers. */
1428                fprintf(stderr, "CLEARING ALL TLSv1.2 CIPHERS SHOULD FAIL\n");
1429                goto end;
1430            }
1431
1432            if (!SSL_CTX_set_cipher_list(s_ctx, cipher)) {
1433                if (ERR_GET_REASON(ERR_peek_error()) == SSL_R_NO_CIPHER_MATCH) {
1434                    ERR_clear_error();
1435                } else {
1436                    ERR_print_errors(bio_err);
1437                    goto end;
1438                }
1439            } else {
1440                /* Should have failed when clearing all TLSv1.2 ciphers. */
1441                fprintf(stderr, "CLEARING ALL TLSv1.2 CIPHERS SHOULD FAIL\n");
1442                goto end;
1443            }
1444
1445            if (!SSL_CTX_set_cipher_list(s_ctx2, cipher)) {
1446                if (ERR_GET_REASON(ERR_peek_error()) == SSL_R_NO_CIPHER_MATCH) {
1447                    ERR_clear_error();
1448                } else {
1449                    ERR_print_errors(bio_err);
1450                    goto end;
1451                }
1452            } else {
1453                /* Should have failed when clearing all TLSv1.2 ciphers. */
1454                fprintf(stderr, "CLEARING ALL TLSv1.2 CIPHERS SHOULD FAIL\n");
1455                goto end;
1456            }
1457        } else {
1458            if (!SSL_CTX_set_cipher_list(c_ctx, cipher)
1459                    || !SSL_CTX_set_cipher_list(s_ctx, cipher)
1460                    || !SSL_CTX_set_cipher_list(s_ctx2, cipher)) {
1461                ERR_print_errors(bio_err);
1462                goto end;
1463            }
1464        }
1465    }
1466    if (ciphersuites != NULL) {
1467        if (!SSL_CTX_set_ciphersuites(c_ctx, ciphersuites)
1468            || !SSL_CTX_set_ciphersuites(s_ctx, ciphersuites)
1469            || !SSL_CTX_set_ciphersuites(s_ctx2, ciphersuites)) {
1470            ERR_print_errors(bio_err);
1471            goto end;
1472        }
1473    }
1474
1475#ifndef OPENSSL_NO_CT
1476    if (ct_validation &&
1477        !SSL_CTX_enable_ct(c_ctx, SSL_CT_VALIDATION_STRICT)) {
1478        ERR_print_errors(bio_err);
1479        goto end;
1480    }
1481#endif
1482
1483    /* Process SSL_CONF arguments */
1484    SSL_CONF_CTX_set_ssl_ctx(c_cctx, c_ctx);
1485    SSL_CONF_CTX_set_ssl_ctx(s_cctx, s_ctx);
1486    SSL_CONF_CTX_set_ssl_ctx(s_cctx2, s_ctx2);
1487
1488    for (i = 0; i < sk_OPENSSL_STRING_num(conf_args); i += 2) {
1489        int rv;
1490        arg = sk_OPENSSL_STRING_value(conf_args, i);
1491        argn = sk_OPENSSL_STRING_value(conf_args, i + 1);
1492        rv = SSL_CONF_cmd(c_cctx, arg, argn);
1493        /* If not recognised use server context */
1494        if (rv == -2) {
1495            rv = SSL_CONF_cmd(s_cctx2, arg, argn);
1496            if (rv > 0)
1497                rv = SSL_CONF_cmd(s_cctx, arg, argn);
1498        }
1499        if (rv <= 0) {
1500            BIO_printf(bio_err, "Error processing %s %s\n",
1501                       arg, argn ? argn : "");
1502            ERR_print_errors(bio_err);
1503            goto end;
1504        }
1505    }
1506
1507    if (!SSL_CONF_CTX_finish(s_cctx) || !SSL_CONF_CTX_finish(c_cctx) || !SSL_CONF_CTX_finish(s_cctx2)) {
1508        BIO_puts(bio_err, "Error finishing context\n");
1509        ERR_print_errors(bio_err);
1510        goto end;
1511    }
1512#ifndef OPENSSL_NO_DH
1513    if (!no_dhe) {
1514        if (dhe1024dsa)
1515            dhpkey = get_dh1024dsa(libctx);
1516        else if (dhe512)
1517            dhpkey = get_dh512(libctx);
1518        else if (dhe4096)
1519            dhpkey = get_dh4096(libctx);
1520        else
1521            dhpkey = get_dh2048(libctx);
1522
1523        if (dhpkey == NULL || !EVP_PKEY_up_ref(dhpkey)) {
1524            EVP_PKEY_free(dhpkey);
1525            BIO_puts(bio_err, "Error getting DH parameters\n");
1526            ERR_print_errors(bio_err);
1527            goto end;
1528        }
1529        if (!SSL_CTX_set0_tmp_dh_pkey(s_ctx, dhpkey))
1530            EVP_PKEY_free(dhpkey);
1531        if (!SSL_CTX_set0_tmp_dh_pkey(s_ctx2, dhpkey))
1532            EVP_PKEY_free(dhpkey);
1533    }
1534#endif
1535
1536    if (!(SSL_CTX_load_verify_file(s_ctx, CAfile)
1537          || SSL_CTX_load_verify_dir(s_ctx, CApath))
1538        || !SSL_CTX_set_default_verify_paths(s_ctx)
1539        || !(SSL_CTX_load_verify_file(s_ctx2, CAfile)
1540             || SSL_CTX_load_verify_dir(s_ctx2, CApath))
1541        || !SSL_CTX_set_default_verify_paths(s_ctx2)
1542        || !(SSL_CTX_load_verify_file(c_ctx, CAfile)
1543             || SSL_CTX_load_verify_dir(c_ctx, CApath))
1544        || !SSL_CTX_set_default_verify_paths(c_ctx)) {
1545        ERR_print_errors(bio_err);
1546    }
1547
1548#ifndef OPENSSL_NO_CT
1549    if (!SSL_CTX_set_default_ctlog_list_file(s_ctx) ||
1550        !SSL_CTX_set_default_ctlog_list_file(s_ctx2) ||
1551        !SSL_CTX_set_default_ctlog_list_file(c_ctx)) {
1552        ERR_print_errors(bio_err);
1553    }
1554#endif
1555
1556    if (client_auth) {
1557        printf("client authentication\n");
1558        SSL_CTX_set_verify(s_ctx,
1559                           SSL_VERIFY_PEER | SSL_VERIFY_FAIL_IF_NO_PEER_CERT,
1560                           verify_callback);
1561        SSL_CTX_set_verify(s_ctx2,
1562                           SSL_VERIFY_PEER | SSL_VERIFY_FAIL_IF_NO_PEER_CERT,
1563                           verify_callback);
1564        SSL_CTX_set_cert_verify_callback(s_ctx, app_verify_callback,
1565                                         &app_verify_arg);
1566        SSL_CTX_set_cert_verify_callback(s_ctx2, app_verify_callback,
1567                                         &app_verify_arg);
1568    }
1569    if (server_auth) {
1570        printf("server authentication\n");
1571        SSL_CTX_set_verify(c_ctx, SSL_VERIFY_PEER, verify_callback);
1572        SSL_CTX_set_cert_verify_callback(c_ctx, app_verify_callback,
1573                                         &app_verify_arg);
1574    }
1575
1576    {
1577        int session_id_context = 0;
1578        if (!SSL_CTX_set_session_id_context(s_ctx, (void *)&session_id_context,
1579                                            sizeof(session_id_context)) ||
1580            !SSL_CTX_set_session_id_context(s_ctx2, (void *)&session_id_context,
1581                                            sizeof(session_id_context))) {
1582            ERR_print_errors(bio_err);
1583            goto end;
1584        }
1585    }
1586
1587    /* Use PSK only if PSK key is given */
1588    if (psk_key != NULL) {
1589        /*
1590         * no_psk is used to avoid putting psk command to openssl tool
1591         */
1592        if (no_psk) {
1593            /*
1594             * if PSK is not compiled in and psk key is given, do nothing and
1595             * exit successfully
1596             */
1597            ret = EXIT_SUCCESS;
1598            goto end;
1599        }
1600#ifndef OPENSSL_NO_PSK
1601        SSL_CTX_set_psk_client_callback(c_ctx, psk_client_callback);
1602        SSL_CTX_set_psk_server_callback(s_ctx, psk_server_callback);
1603        SSL_CTX_set_psk_server_callback(s_ctx2, psk_server_callback);
1604        if (debug)
1605            BIO_printf(bio_err, "setting PSK identity hint to s_ctx\n");
1606        if (!SSL_CTX_use_psk_identity_hint(s_ctx, "ctx server identity_hint") ||
1607            !SSL_CTX_use_psk_identity_hint(s_ctx2, "ctx server identity_hint")) {
1608            BIO_printf(bio_err, "error setting PSK identity hint to s_ctx\n");
1609            ERR_print_errors(bio_err);
1610            goto end;
1611        }
1612#endif
1613    }
1614
1615#ifndef OPENSSL_NO_NEXTPROTONEG
1616    if (npn_client) {
1617        SSL_CTX_set_next_proto_select_cb(c_ctx, cb_client_npn, NULL);
1618    }
1619    if (npn_server) {
1620        if (npn_server_reject) {
1621            BIO_printf(bio_err,
1622                       "Can't have both -npn_server and -npn_server_reject\n");
1623            goto end;
1624        }
1625        SSL_CTX_set_npn_advertised_cb(s_ctx, cb_server_npn, NULL);
1626        SSL_CTX_set_npn_advertised_cb(s_ctx2, cb_server_npn, NULL);
1627    }
1628    if (npn_server_reject) {
1629        SSL_CTX_set_npn_advertised_cb(s_ctx, cb_server_rejects_npn, NULL);
1630        SSL_CTX_set_npn_advertised_cb(s_ctx2, cb_server_rejects_npn, NULL);
1631    }
1632#endif
1633
1634    if (serverinfo_sct) {
1635        if (!SSL_CTX_add_client_custom_ext(c_ctx,
1636                TLSEXT_TYPE_signed_certificate_timestamp,
1637                NULL, NULL, NULL,
1638                serverinfo_cli_parse_cb, NULL)) {
1639            BIO_printf(bio_err, "Error adding SCT extension\n");
1640            goto end;
1641        }
1642    }
1643    if (serverinfo_tack) {
1644        if (!SSL_CTX_add_client_custom_ext(c_ctx, TACK_EXT_TYPE,
1645                                      NULL, NULL, NULL,
1646                                      serverinfo_cli_parse_cb, NULL)) {
1647            BIO_printf(bio_err, "Error adding TACK extension\n");
1648            goto end;
1649        }
1650    }
1651    if (serverinfo_file)
1652        if (!SSL_CTX_use_serverinfo_file(s_ctx, serverinfo_file) ||
1653            !SSL_CTX_use_serverinfo_file(s_ctx2, serverinfo_file)) {
1654            BIO_printf(bio_err, "missing serverinfo file\n");
1655            goto end;
1656        }
1657
1658    if (custom_ext) {
1659        if (!SSL_CTX_add_client_custom_ext(c_ctx, CUSTOM_EXT_TYPE_0,
1660                                      custom_ext_0_cli_add_cb,
1661                                      NULL, NULL,
1662                                      custom_ext_0_cli_parse_cb, NULL)
1663            || !SSL_CTX_add_client_custom_ext(c_ctx, CUSTOM_EXT_TYPE_1,
1664                                      custom_ext_1_cli_add_cb,
1665                                      NULL, NULL,
1666                                      custom_ext_1_cli_parse_cb, NULL)
1667            || !SSL_CTX_add_client_custom_ext(c_ctx, CUSTOM_EXT_TYPE_2,
1668                                      custom_ext_2_cli_add_cb,
1669                                      NULL, NULL,
1670                                      custom_ext_2_cli_parse_cb, NULL)
1671            || !SSL_CTX_add_client_custom_ext(c_ctx, CUSTOM_EXT_TYPE_3,
1672                                      custom_ext_3_cli_add_cb,
1673                                      NULL, NULL,
1674                                      custom_ext_3_cli_parse_cb, NULL)
1675            || !SSL_CTX_add_server_custom_ext(s_ctx, CUSTOM_EXT_TYPE_0,
1676                                      custom_ext_0_srv_add_cb,
1677                                      NULL, NULL,
1678                                      custom_ext_0_srv_parse_cb, NULL)
1679            || !SSL_CTX_add_server_custom_ext(s_ctx2, CUSTOM_EXT_TYPE_0,
1680                                      custom_ext_0_srv_add_cb,
1681                                      NULL, NULL,
1682                                      custom_ext_0_srv_parse_cb, NULL)
1683            || !SSL_CTX_add_server_custom_ext(s_ctx, CUSTOM_EXT_TYPE_1,
1684                                      custom_ext_1_srv_add_cb,
1685                                      NULL, NULL,
1686                                      custom_ext_1_srv_parse_cb, NULL)
1687            || !SSL_CTX_add_server_custom_ext(s_ctx2, CUSTOM_EXT_TYPE_1,
1688                                      custom_ext_1_srv_add_cb,
1689                                      NULL, NULL,
1690                                      custom_ext_1_srv_parse_cb, NULL)
1691            || !SSL_CTX_add_server_custom_ext(s_ctx, CUSTOM_EXT_TYPE_2,
1692                                      custom_ext_2_srv_add_cb,
1693                                      NULL, NULL,
1694                                      custom_ext_2_srv_parse_cb, NULL)
1695            || !SSL_CTX_add_server_custom_ext(s_ctx2, CUSTOM_EXT_TYPE_2,
1696                                      custom_ext_2_srv_add_cb,
1697                                      NULL, NULL,
1698                                      custom_ext_2_srv_parse_cb, NULL)
1699            || !SSL_CTX_add_server_custom_ext(s_ctx, CUSTOM_EXT_TYPE_3,
1700                                      custom_ext_3_srv_add_cb,
1701                                      NULL, NULL,
1702                                      custom_ext_3_srv_parse_cb, NULL)
1703            || !SSL_CTX_add_server_custom_ext(s_ctx2, CUSTOM_EXT_TYPE_3,
1704                                      custom_ext_3_srv_add_cb,
1705                                      NULL, NULL,
1706                                      custom_ext_3_srv_parse_cb, NULL)) {
1707            BIO_printf(bio_err, "Error setting custom extensions\n");
1708            goto end;
1709        }
1710    }
1711
1712    if (alpn_server)
1713        SSL_CTX_set_alpn_select_cb(s_ctx, cb_server_alpn, alpn_server);
1714    if (alpn_server2)
1715        SSL_CTX_set_alpn_select_cb(s_ctx2, cb_server_alpn, alpn_server2);
1716
1717    if (alpn_client) {
1718        size_t alpn_len;
1719        unsigned char *alpn = next_protos_parse(&alpn_len, alpn_client);
1720
1721        if (alpn == NULL) {
1722            BIO_printf(bio_err, "Error parsing -alpn_client argument\n");
1723            goto end;
1724        }
1725        /* Returns 0 on success!! */
1726        if (SSL_CTX_set_alpn_protos(c_ctx, alpn, alpn_len)) {
1727            BIO_printf(bio_err, "Error setting ALPN\n");
1728            OPENSSL_free(alpn);
1729            goto end;
1730        }
1731        OPENSSL_free(alpn);
1732    }
1733
1734    if (server_sess_in != NULL) {
1735        server_sess = read_session(server_sess_in);
1736        if (server_sess == NULL)
1737            goto end;
1738    }
1739    if (client_sess_in != NULL) {
1740        client_sess = read_session(client_sess_in);
1741        if (client_sess == NULL)
1742            goto end;
1743    }
1744
1745    if (server_sess_out != NULL || server_sess_in != NULL) {
1746        char *keys;
1747        long size;
1748
1749        /* Use a fixed key so that we can decrypt the ticket. */
1750        size = SSL_CTX_set_tlsext_ticket_keys(s_ctx, NULL, 0);
1751        keys = OPENSSL_zalloc(size);
1752        if (keys == NULL)
1753            goto end;
1754        SSL_CTX_set_tlsext_ticket_keys(s_ctx, keys, size);
1755        OPENSSL_free(keys);
1756    }
1757
1758    if (sn_server1 != NULL || sn_server2 != NULL)
1759        SSL_CTX_set_tlsext_servername_callback(s_ctx, servername_cb);
1760
1761    c_ssl = SSL_new(c_ctx);
1762    s_ssl = SSL_new(s_ctx);
1763    if (c_ssl == NULL || s_ssl == NULL)
1764        goto end;
1765
1766    if (sn_client)
1767        SSL_set_tlsext_host_name(c_ssl, sn_client);
1768    if (client_ktls)
1769        SSL_set_options(c_ssl, SSL_OP_ENABLE_KTLS);
1770    if (server_ktls)
1771        SSL_set_options(s_ssl, SSL_OP_ENABLE_KTLS);
1772
1773    if (!set_protocol_version(server_min_proto, s_ssl, SSL_CTRL_SET_MIN_PROTO_VERSION))
1774        goto end;
1775    if (!set_protocol_version(server_max_proto, s_ssl, SSL_CTRL_SET_MAX_PROTO_VERSION))
1776        goto end;
1777    if (!set_protocol_version(client_min_proto, c_ssl, SSL_CTRL_SET_MIN_PROTO_VERSION))
1778        goto end;
1779    if (!set_protocol_version(client_max_proto, c_ssl, SSL_CTRL_SET_MAX_PROTO_VERSION))
1780        goto end;
1781
1782    if (server_sess) {
1783        if (SSL_CTX_add_session(s_ctx, server_sess) == 0) {
1784            BIO_printf(bio_err, "Can't add server session\n");
1785            ERR_print_errors(bio_err);
1786            goto end;
1787        }
1788    }
1789
1790    BIO_printf(bio_stdout, "Doing handshakes=%d bytes=%ld\n", number, bytes);
1791    for (i = 0; i < number; i++) {
1792        if (!reuse) {
1793            if (!SSL_set_session(c_ssl, NULL)) {
1794                BIO_printf(bio_err, "Failed to set session\n");
1795                goto end;
1796            }
1797        }
1798        if (client_sess_in != NULL) {
1799            if (SSL_set_session(c_ssl, client_sess) == 0) {
1800                BIO_printf(bio_err, "Can't set client session\n");
1801                ERR_print_errors(bio_err);
1802                goto end;
1803            }
1804        }
1805        switch (bio_type) {
1806        case BIO_MEM:
1807            ret = doit(s_ssl, c_ssl, bytes);
1808            break;
1809        case BIO_PAIR:
1810            ret = doit_biopair(s_ssl, c_ssl, bytes, &s_time, &c_time);
1811            break;
1812#ifndef OPENSSL_NO_SOCK
1813        case BIO_IPV4:
1814            ret = doit_localhost(s_ssl, c_ssl, BIO_FAMILY_IPV4,
1815                                 bytes, &s_time, &c_time);
1816            break;
1817        case BIO_IPV6:
1818            ret = doit_localhost(s_ssl, c_ssl, BIO_FAMILY_IPV6,
1819                                 bytes, &s_time, &c_time);
1820            break;
1821#else
1822        case BIO_IPV4:
1823        case BIO_IPV6:
1824            ret = EXIT_FAILURE;
1825            goto end;
1826#endif
1827        }
1828        if (ret != EXIT_SUCCESS)
1829            break;
1830    }
1831
1832    if (should_negotiate && ret == EXIT_SUCCESS &&
1833        strcmp(should_negotiate, "fail-server") != 0 &&
1834        strcmp(should_negotiate, "fail-client") != 0) {
1835        int version = protocol_from_string(should_negotiate);
1836        if (version < 0) {
1837            BIO_printf(bio_err, "Error parsing: %s\n", should_negotiate);
1838            ret = EXIT_FAILURE;
1839            goto end;
1840        }
1841        if (SSL_version(c_ssl) != version) {
1842            BIO_printf(bio_err, "Unexpected version negotiated. "
1843                "Expected: %s, got %s\n", should_negotiate, SSL_get_version(c_ssl));
1844            ret = EXIT_FAILURE;
1845            goto end;
1846        }
1847    }
1848
1849    if (should_reuse != -1) {
1850        if (SSL_session_reused(s_ssl) != should_reuse ||
1851            SSL_session_reused(c_ssl) != should_reuse) {
1852            BIO_printf(bio_err, "Unexpected session reuse state. "
1853                "Expected: %d, server: %d, client: %d\n", should_reuse,
1854                SSL_session_reused(s_ssl), SSL_session_reused(c_ssl));
1855            ret = EXIT_FAILURE;
1856            goto end;
1857        }
1858    }
1859
1860    if (server_sess_out != NULL) {
1861        if (write_session(server_sess_out, SSL_get_session(s_ssl)) == 0) {
1862            ret = EXIT_FAILURE;
1863            goto end;
1864        }
1865    }
1866    if (client_sess_out != NULL) {
1867        if (write_session(client_sess_out, SSL_get_session(c_ssl)) == 0) {
1868            ret = EXIT_FAILURE;
1869            goto end;
1870        }
1871    }
1872
1873    if (!verbose) {
1874        print_details(c_ssl, "");
1875    }
1876    if (print_time) {
1877#ifdef CLOCKS_PER_SEC
1878        /*
1879         * "To determine the time in seconds, the value returned by the clock
1880         * function should be divided by the value of the macro
1881         * CLOCKS_PER_SEC." -- ISO/IEC 9899
1882         */
1883        BIO_printf(bio_stdout, "Approximate total server time: %6.2f s\n"
1884                   "Approximate total client time: %6.2f s\n",
1885                   (double)s_time / CLOCKS_PER_SEC,
1886                   (double)c_time / CLOCKS_PER_SEC);
1887#else
1888        BIO_printf(bio_stdout,
1889                   "Approximate total server time: %6.2f units\n"
1890                   "Approximate total client time: %6.2f units\n",
1891                   (double)s_time, (double)c_time);
1892#endif
1893    }
1894
1895 end:
1896    SSL_free(s_ssl);
1897    SSL_free(c_ssl);
1898    SSL_CTX_free(s_ctx);
1899    SSL_CTX_free(s_ctx2);
1900    SSL_CTX_free(c_ctx);
1901    SSL_CONF_CTX_free(s_cctx);
1902    SSL_CONF_CTX_free(s_cctx2);
1903    SSL_CONF_CTX_free(c_cctx);
1904    sk_OPENSSL_STRING_free(conf_args);
1905
1906    BIO_free(bio_stdout);
1907
1908    SSL_SESSION_free(server_sess);
1909    SSL_SESSION_free(client_sess);
1910
1911    OSSL_PROVIDER_unload(defctxnull);
1912    OSSL_PROVIDER_unload(thisprov);
1913    OSSL_LIB_CTX_free(libctx);
1914
1915    BIO_free(bio_err);
1916    EXIT(ret);
1917}
1918
1919#ifndef OPENSSL_NO_SOCK
1920int doit_localhost(SSL *s_ssl, SSL *c_ssl, int family, long count,
1921                   clock_t *s_time, clock_t *c_time)
1922{
1923    long cw_num = count, cr_num = count, sw_num = count, sr_num = count;
1924    BIO *s_ssl_bio = NULL, *c_ssl_bio = NULL;
1925    BIO *acpt = NULL, *server = NULL, *client = NULL;
1926    char addr_str[40];
1927    int ret = EXIT_FAILURE;
1928    int err_in_client = 0;
1929    int err_in_server = 0;
1930
1931    acpt = BIO_new_accept(family == BIO_FAMILY_IPV4 ? "127.0.0.1:0"
1932                                                    : "[::1]:0");
1933    if (acpt == NULL)
1934        goto err;
1935    BIO_set_accept_ip_family(acpt, family);
1936    BIO_set_bind_mode(acpt, BIO_SOCK_NONBLOCK | BIO_SOCK_REUSEADDR);
1937    if (BIO_do_accept(acpt) <= 0)
1938        goto err;
1939
1940    BIO_snprintf(addr_str, sizeof(addr_str), ":%s", BIO_get_accept_port(acpt));
1941
1942    client = BIO_new_connect(addr_str);
1943    if (!client)
1944        goto err;
1945    BIO_set_conn_ip_family(client, family);
1946
1947    if (BIO_set_nbio(client, 1) <= 0)
1948        goto err;
1949    if (BIO_set_nbio(acpt, 1) <= 0)
1950        goto err;
1951
1952    {
1953        int st_connect = 0, st_accept = 0;
1954
1955        while(!st_connect || !st_accept) {
1956            if (!st_connect) {
1957                if (BIO_do_connect(client) <= 0) {
1958                    if (!BIO_should_retry(client))
1959                        goto err;
1960                } else {
1961                    st_connect = 1;
1962                }
1963            }
1964            if (!st_accept) {
1965                if (BIO_do_accept(acpt) <= 0) {
1966                    if (!BIO_should_retry(acpt))
1967                        goto err;
1968                } else {
1969                    st_accept = 1;
1970                }
1971            }
1972        }
1973    }
1974    /* We're not interested in accepting further connects */
1975    server = BIO_pop(acpt);
1976    BIO_free_all(acpt);
1977    acpt = NULL;
1978
1979    s_ssl_bio = BIO_new(BIO_f_ssl());
1980    if (!s_ssl_bio)
1981        goto err;
1982
1983    c_ssl_bio = BIO_new(BIO_f_ssl());
1984    if (!c_ssl_bio)
1985        goto err;
1986
1987    SSL_set_connect_state(c_ssl);
1988    SSL_set_bio(c_ssl, client, client);
1989    (void)BIO_set_ssl(c_ssl_bio, c_ssl, BIO_NOCLOSE);
1990
1991    SSL_set_accept_state(s_ssl);
1992    SSL_set_bio(s_ssl, server, server);
1993    (void)BIO_set_ssl(s_ssl_bio, s_ssl, BIO_NOCLOSE);
1994
1995    do {
1996        /*-
1997         * c_ssl_bio:          SSL filter BIO
1998         *
1999         * client:             I/O for SSL library
2000         *
2001         *
2002         * server:             I/O for SSL library
2003         *
2004         * s_ssl_bio:          SSL filter BIO
2005         */
2006
2007        /*
2008         * We have non-blocking behaviour throughout this test program, but
2009         * can be sure that there is *some* progress in each iteration; so we
2010         * don't have to worry about ..._SHOULD_READ or ..._SHOULD_WRITE --
2011         * we just try everything in each iteration
2012         */
2013
2014        {
2015            /* CLIENT */
2016
2017            char cbuf[1024 * 8];
2018            int i, r;
2019            clock_t c_clock = clock();
2020
2021            memset(cbuf, 0, sizeof(cbuf));
2022
2023            if (debug)
2024                if (SSL_in_init(c_ssl))
2025                    printf("client waiting in SSL_connect - %s\n",
2026                           SSL_state_string_long(c_ssl));
2027
2028            if (cw_num > 0) {
2029                /* Write to server. */
2030
2031                if (cw_num > (long)sizeof(cbuf))
2032                    i = sizeof(cbuf);
2033                else
2034                    i = (int)cw_num;
2035                r = BIO_write(c_ssl_bio, cbuf, i);
2036                if (r < 0) {
2037                    if (!BIO_should_retry(c_ssl_bio)) {
2038                        fprintf(stderr, "ERROR in CLIENT (write)\n");
2039                        err_in_client = 1;
2040                        goto err;
2041                    }
2042                    /*
2043                     * BIO_should_retry(...) can just be ignored here. The
2044                     * library expects us to call BIO_write with the same
2045                     * arguments again, and that's what we will do in the
2046                     * next iteration.
2047                     */
2048                } else if (r == 0) {
2049                    fprintf(stderr, "SSL CLIENT STARTUP FAILED\n");
2050                    goto err;
2051                } else {
2052                    if (debug)
2053                        printf("client wrote %d\n", r);
2054                    cw_num -= r;
2055                }
2056            }
2057
2058            if (cr_num > 0) {
2059                /* Read from server. */
2060
2061                r = BIO_read(c_ssl_bio, cbuf, sizeof(cbuf));
2062                if (r < 0) {
2063                    if (!BIO_should_retry(c_ssl_bio)) {
2064                        fprintf(stderr, "ERROR in CLIENT (read)\n");
2065                        err_in_client = 1;
2066                        goto err;
2067                    }
2068                    /*
2069                     * Again, "BIO_should_retry" can be ignored.
2070                     */
2071                } else if (r == 0) {
2072                    fprintf(stderr, "SSL CLIENT STARTUP FAILED\n");
2073                    goto err;
2074                } else {
2075                    if (debug)
2076                        printf("client read %d\n", r);
2077                    cr_num -= r;
2078                }
2079            }
2080
2081            /*
2082             * c_time and s_time increments will typically be very small
2083             * (depending on machine speed and clock tick intervals), but
2084             * sampling over a large number of connections should result in
2085             * fairly accurate figures.  We cannot guarantee a lot, however
2086             * -- if each connection lasts for exactly one clock tick, it
2087             * will be counted only for the client or only for the server or
2088             * even not at all.
2089             */
2090            *c_time += (clock() - c_clock);
2091        }
2092
2093        {
2094            /* SERVER */
2095
2096            char sbuf[1024 * 8];
2097            int i, r;
2098            clock_t s_clock = clock();
2099
2100            memset(sbuf, 0, sizeof(sbuf));
2101
2102            if (debug)
2103                if (SSL_in_init(s_ssl))
2104                    printf("server waiting in SSL_accept - %s\n",
2105                           SSL_state_string_long(s_ssl));
2106
2107            if (sw_num > 0) {
2108                /* Write to client. */
2109
2110                if (sw_num > (long)sizeof(sbuf))
2111                    i = sizeof(sbuf);
2112                else
2113                    i = (int)sw_num;
2114                r = BIO_write(s_ssl_bio, sbuf, i);
2115                if (r < 0) {
2116                    if (!BIO_should_retry(s_ssl_bio)) {
2117                        fprintf(stderr, "ERROR in SERVER (write)\n");
2118                        err_in_server = 1;
2119                        goto err;
2120                    }
2121                    /* Ignore "BIO_should_retry". */
2122                } else if (r == 0) {
2123                    fprintf(stderr, "SSL SERVER STARTUP FAILED\n");
2124                    goto err;
2125                } else {
2126                    if (debug)
2127                        printf("server wrote %d\n", r);
2128                    sw_num -= r;
2129                }
2130            }
2131
2132            if (sr_num > 0) {
2133                /* Read from client. */
2134
2135                r = BIO_read(s_ssl_bio, sbuf, sizeof(sbuf));
2136                if (r < 0) {
2137                    if (!BIO_should_retry(s_ssl_bio)) {
2138                        fprintf(stderr, "ERROR in SERVER (read)\n");
2139                        err_in_server = 1;
2140                        goto err;
2141                    }
2142                    /* blah, blah */
2143                } else if (r == 0) {
2144                    fprintf(stderr, "SSL SERVER STARTUP FAILED\n");
2145                    goto err;
2146                } else {
2147                    if (debug)
2148                        printf("server read %d\n", r);
2149                    sr_num -= r;
2150                }
2151            }
2152
2153            *s_time += (clock() - s_clock);
2154        }
2155    }
2156    while (cw_num > 0 || cr_num > 0 || sw_num > 0 || sr_num > 0);
2157
2158    if (verbose) {
2159        print_details(c_ssl, "DONE via TCP connect: ");
2160
2161        if (BIO_get_ktls_send(SSL_get_wbio(s_ssl))
2162                && BIO_get_ktls_recv(SSL_get_rbio(s_ssl)))
2163            BIO_printf(bio_stdout, "Server using Kernel TLS in both directions\n");
2164        else if (BIO_get_ktls_send(SSL_get_wbio(s_ssl)))
2165            BIO_printf(bio_stdout, "Server using Kernel TLS for sending\n");
2166        else if (BIO_get_ktls_recv(SSL_get_rbio(s_ssl)))
2167            BIO_printf(bio_stdout, "Server using Kernel TLS for receiving\n");
2168
2169        if (BIO_get_ktls_send(SSL_get_wbio(c_ssl))
2170                && BIO_get_ktls_recv(SSL_get_rbio(c_ssl)))
2171            BIO_printf(bio_stdout, "Client using Kernel TLS in both directions\n");
2172        else if (BIO_get_ktls_send(SSL_get_wbio(c_ssl)))
2173            BIO_printf(bio_stdout, "Client using Kernel TLS for sending\n");
2174        else if (BIO_get_ktls_recv(SSL_get_rbio(c_ssl)))
2175            BIO_printf(bio_stdout, "Client using Kernel TLS for receiving\n");
2176    }
2177# ifndef OPENSSL_NO_NEXTPROTONEG
2178    if (verify_npn(c_ssl, s_ssl) < 0)
2179        goto end;
2180# endif
2181    if (verify_serverinfo() < 0) {
2182        fprintf(stderr, "Server info verify error\n");
2183        goto err;
2184    }
2185    if (verify_alpn(c_ssl, s_ssl) < 0
2186            || verify_servername(c_ssl, s_ssl) < 0)
2187        goto err;
2188
2189    if (custom_ext_error) {
2190        fprintf(stderr, "Custom extension error\n");
2191        goto err;
2192    }
2193
2194# ifndef OPENSSL_NO_NEXTPROTONEG
2195 end:
2196# endif
2197    ret = EXIT_SUCCESS;
2198
2199 err:
2200    ERR_print_errors(bio_err);
2201
2202    BIO_free_all(acpt);
2203    BIO_free(server);
2204    BIO_free(client);
2205    BIO_free(s_ssl_bio);
2206    BIO_free(c_ssl_bio);
2207
2208    if (should_negotiate != NULL && strcmp(should_negotiate, "fail-client") == 0)
2209        ret = (err_in_client != 0) ? EXIT_SUCCESS : EXIT_FAILURE;
2210    else if (should_negotiate != NULL && strcmp(should_negotiate, "fail-server") == 0)
2211        ret = (err_in_server != 0) ? EXIT_SUCCESS : EXIT_FAILURE;
2212
2213    return ret;
2214}
2215#endif
2216
2217int doit_biopair(SSL *s_ssl, SSL *c_ssl, long count,
2218                 clock_t *s_time, clock_t *c_time)
2219{
2220    long cw_num = count, cr_num = count, sw_num = count, sr_num = count;
2221    BIO *s_ssl_bio = NULL, *c_ssl_bio = NULL;
2222    BIO *server = NULL, *server_io = NULL, *client = NULL, *client_io = NULL;
2223    int ret = EXIT_FAILURE;
2224    int err_in_client = 0;
2225    int err_in_server = 0;
2226
2227    size_t bufsiz = 256;        /* small buffer for testing */
2228
2229    if (!BIO_new_bio_pair(&server, bufsiz, &server_io, bufsiz))
2230        goto err;
2231    if (!BIO_new_bio_pair(&client, bufsiz, &client_io, bufsiz))
2232        goto err;
2233
2234    s_ssl_bio = BIO_new(BIO_f_ssl());
2235    if (!s_ssl_bio)
2236        goto err;
2237
2238    c_ssl_bio = BIO_new(BIO_f_ssl());
2239    if (!c_ssl_bio)
2240        goto err;
2241
2242    SSL_set_connect_state(c_ssl);
2243    SSL_set_bio(c_ssl, client, client);
2244    (void)BIO_set_ssl(c_ssl_bio, c_ssl, BIO_NOCLOSE);
2245
2246    SSL_set_accept_state(s_ssl);
2247    SSL_set_bio(s_ssl, server, server);
2248    (void)BIO_set_ssl(s_ssl_bio, s_ssl, BIO_NOCLOSE);
2249
2250    do {
2251        /*-
2252         * c_ssl_bio:          SSL filter BIO
2253         *
2254         * client:             pseudo-I/O for SSL library
2255         *
2256         * client_io:          client's SSL communication; usually to be
2257         *                     relayed over some I/O facility, but in this
2258         *                     test program, we're the server, too:
2259         *
2260         * server_io:          server's SSL communication
2261         *
2262         * server:             pseudo-I/O for SSL library
2263         *
2264         * s_ssl_bio:          SSL filter BIO
2265         *
2266         * The client and the server each employ a "BIO pair":
2267         * client + client_io, server + server_io.
2268         * BIO pairs are symmetric.  A BIO pair behaves similar
2269         * to a non-blocking socketpair (but both endpoints must
2270         * be handled by the same thread).
2271         * [Here we could connect client and server to the ends
2272         * of a single BIO pair, but then this code would be less
2273         * suitable as an example for BIO pairs in general.]
2274         *
2275         * Useful functions for querying the state of BIO pair endpoints:
2276         *
2277         * BIO_ctrl_pending(bio)              number of bytes we can read now
2278         * BIO_ctrl_get_read_request(bio)     number of bytes needed to fulfill
2279         *                                      other side's read attempt
2280         * BIO_ctrl_get_write_guarantee(bio)   number of bytes we can write now
2281         *
2282         * ..._read_request is never more than ..._write_guarantee;
2283         * it depends on the application which one you should use.
2284         */
2285
2286        /*
2287         * We have non-blocking behaviour throughout this test program, but
2288         * can be sure that there is *some* progress in each iteration; so we
2289         * don't have to worry about ..._SHOULD_READ or ..._SHOULD_WRITE --
2290         * we just try everything in each iteration
2291         */
2292
2293        {
2294            /* CLIENT */
2295
2296            char cbuf[1024 * 8];
2297            int i, r;
2298            clock_t c_clock = clock();
2299
2300            memset(cbuf, 0, sizeof(cbuf));
2301
2302            if (debug)
2303                if (SSL_in_init(c_ssl))
2304                    printf("client waiting in SSL_connect - %s\n",
2305                           SSL_state_string_long(c_ssl));
2306
2307            if (cw_num > 0) {
2308                /* Write to server. */
2309
2310                if (cw_num > (long)sizeof(cbuf))
2311                    i = sizeof(cbuf);
2312                else
2313                    i = (int)cw_num;
2314                r = BIO_write(c_ssl_bio, cbuf, i);
2315                if (r < 0) {
2316                    if (!BIO_should_retry(c_ssl_bio)) {
2317                        fprintf(stderr, "ERROR in CLIENT\n");
2318                        err_in_client = 1;
2319                        goto err;
2320                    }
2321                    /*
2322                     * BIO_should_retry(...) can just be ignored here. The
2323                     * library expects us to call BIO_write with the same
2324                     * arguments again, and that's what we will do in the
2325                     * next iteration.
2326                     */
2327                } else if (r == 0) {
2328                    fprintf(stderr, "SSL CLIENT STARTUP FAILED\n");
2329                    goto err;
2330                } else {
2331                    if (debug)
2332                        printf("client wrote %d\n", r);
2333                    cw_num -= r;
2334                }
2335            }
2336
2337            if (cr_num > 0) {
2338                /* Read from server. */
2339
2340                r = BIO_read(c_ssl_bio, cbuf, sizeof(cbuf));
2341                if (r < 0) {
2342                    if (!BIO_should_retry(c_ssl_bio)) {
2343                        fprintf(stderr, "ERROR in CLIENT\n");
2344                        err_in_client = 1;
2345                        goto err;
2346                    }
2347                    /*
2348                     * Again, "BIO_should_retry" can be ignored.
2349                     */
2350                } else if (r == 0) {
2351                    fprintf(stderr, "SSL CLIENT STARTUP FAILED\n");
2352                    goto err;
2353                } else {
2354                    if (debug)
2355                        printf("client read %d\n", r);
2356                    cr_num -= r;
2357                }
2358            }
2359
2360            /*
2361             * c_time and s_time increments will typically be very small
2362             * (depending on machine speed and clock tick intervals), but
2363             * sampling over a large number of connections should result in
2364             * fairly accurate figures.  We cannot guarantee a lot, however
2365             * -- if each connection lasts for exactly one clock tick, it
2366             * will be counted only for the client or only for the server or
2367             * even not at all.
2368             */
2369            *c_time += (clock() - c_clock);
2370        }
2371
2372        {
2373            /* SERVER */
2374
2375            char sbuf[1024 * 8];
2376            int i, r;
2377            clock_t s_clock = clock();
2378
2379            memset(sbuf, 0, sizeof(sbuf));
2380
2381            if (debug)
2382                if (SSL_in_init(s_ssl))
2383                    printf("server waiting in SSL_accept - %s\n",
2384                           SSL_state_string_long(s_ssl));
2385
2386            if (sw_num > 0) {
2387                /* Write to client. */
2388
2389                if (sw_num > (long)sizeof(sbuf))
2390                    i = sizeof(sbuf);
2391                else
2392                    i = (int)sw_num;
2393                r = BIO_write(s_ssl_bio, sbuf, i);
2394                if (r < 0) {
2395                    if (!BIO_should_retry(s_ssl_bio)) {
2396                        fprintf(stderr, "ERROR in SERVER\n");
2397                        err_in_server = 1;
2398                        goto err;
2399                    }
2400                    /* Ignore "BIO_should_retry". */
2401                } else if (r == 0) {
2402                    fprintf(stderr, "SSL SERVER STARTUP FAILED\n");
2403                    goto err;
2404                } else {
2405                    if (debug)
2406                        printf("server wrote %d\n", r);
2407                    sw_num -= r;
2408                }
2409            }
2410
2411            if (sr_num > 0) {
2412                /* Read from client. */
2413
2414                r = BIO_read(s_ssl_bio, sbuf, sizeof(sbuf));
2415                if (r < 0) {
2416                    if (!BIO_should_retry(s_ssl_bio)) {
2417                        fprintf(stderr, "ERROR in SERVER\n");
2418                        err_in_server = 1;
2419                        goto err;
2420                    }
2421                    /* blah, blah */
2422                } else if (r == 0) {
2423                    fprintf(stderr, "SSL SERVER STARTUP FAILED\n");
2424                    goto err;
2425                } else {
2426                    if (debug)
2427                        printf("server read %d\n", r);
2428                    sr_num -= r;
2429                }
2430            }
2431
2432            *s_time += (clock() - s_clock);
2433        }
2434
2435        {
2436            /* "I/O" BETWEEN CLIENT AND SERVER. */
2437
2438            size_t r1, r2;
2439            BIO *io1 = server_io, *io2 = client_io;
2440            /*
2441             * we use the non-copying interface for io1 and the standard
2442             * BIO_write/BIO_read interface for io2
2443             */
2444
2445            static int prev_progress = 1;
2446            int progress = 0;
2447
2448            /* io1 to io2 */
2449            do {
2450                size_t num;
2451                int r;
2452
2453                r1 = BIO_ctrl_pending(io1);
2454                r2 = BIO_ctrl_get_write_guarantee(io2);
2455
2456                num = r1;
2457                if (r2 < num)
2458                    num = r2;
2459                if (num) {
2460                    char *dataptr;
2461
2462                    if (INT_MAX < num) /* yeah, right */
2463                        num = INT_MAX;
2464
2465                    r = BIO_nread(io1, &dataptr, (int)num);
2466                    assert(r > 0);
2467                    assert(r <= (int)num);
2468                    /*
2469                     * possibly r < num (non-contiguous data)
2470                     */
2471                    num = r;
2472                    r = BIO_write(io2, dataptr, (int)num);
2473                    if (r != (int)num) { /* can't happen */
2474                        fprintf(stderr, "ERROR: BIO_write could not write "
2475                                "BIO_ctrl_get_write_guarantee() bytes");
2476                        goto err;
2477                    }
2478                    progress = 1;
2479
2480                    if (debug)
2481                        printf((io1 == client_io) ?
2482                               "C->S relaying: %d bytes\n" :
2483                               "S->C relaying: %d bytes\n", (int)num);
2484                }
2485            }
2486            while (r1 && r2);
2487
2488            /* io2 to io1 */
2489            {
2490                size_t num;
2491                int r;
2492
2493                r1 = BIO_ctrl_pending(io2);
2494                r2 = BIO_ctrl_get_read_request(io1);
2495                /*
2496                 * here we could use ..._get_write_guarantee instead of
2497                 * ..._get_read_request, but by using the latter we test
2498                 * restartability of the SSL implementation more thoroughly
2499                 */
2500                num = r1;
2501                if (r2 < num)
2502                    num = r2;
2503                if (num) {
2504                    char *dataptr;
2505
2506                    if (INT_MAX < num)
2507                        num = INT_MAX;
2508
2509                    if (num > 1)
2510                        --num;  /* test restartability even more thoroughly */
2511
2512                    r = BIO_nwrite0(io1, &dataptr);
2513                    assert(r > 0);
2514                    if (r < (int)num)
2515                        num = r;
2516                    r = BIO_read(io2, dataptr, (int)num);
2517                    if (r != (int)num) { /* can't happen */
2518                        fprintf(stderr, "ERROR: BIO_read could not read "
2519                                "BIO_ctrl_pending() bytes");
2520                        goto err;
2521                    }
2522                    progress = 1;
2523                    r = BIO_nwrite(io1, &dataptr, (int)num);
2524                    if (r != (int)num) { /* can't happen */
2525                        fprintf(stderr, "ERROR: BIO_nwrite() did not accept "
2526                                "BIO_nwrite0() bytes");
2527                        goto err;
2528                    }
2529
2530                    if (debug)
2531                        printf((io2 == client_io) ?
2532                               "C->S relaying: %d bytes\n" :
2533                               "S->C relaying: %d bytes\n", (int)num);
2534                }
2535            }                   /* no loop, BIO_ctrl_get_read_request now
2536                                 * returns 0 anyway */
2537
2538            if (!progress && !prev_progress)
2539                if (cw_num > 0 || cr_num > 0 || sw_num > 0 || sr_num > 0) {
2540                    fprintf(stderr, "ERROR: got stuck\n");
2541                    fprintf(stderr, " ERROR.\n");
2542                    goto err;
2543                }
2544            prev_progress = progress;
2545        }
2546    }
2547    while (cw_num > 0 || cr_num > 0 || sw_num > 0 || sr_num > 0);
2548
2549    if (verbose)
2550        print_details(c_ssl, "DONE via BIO pair: ");
2551#ifndef OPENSSL_NO_NEXTPROTONEG
2552    if (verify_npn(c_ssl, s_ssl) < 0)
2553        goto end;
2554#endif
2555    if (verify_serverinfo() < 0) {
2556        fprintf(stderr, "Server info verify error\n");
2557        goto err;
2558    }
2559    if (verify_alpn(c_ssl, s_ssl) < 0
2560            || verify_servername(c_ssl, s_ssl) < 0)
2561        goto err;
2562
2563    if (custom_ext_error) {
2564        fprintf(stderr, "Custom extension error\n");
2565        goto err;
2566    }
2567
2568#ifndef OPENSSL_NO_NEXTPROTONEG
2569 end:
2570#endif
2571    ret = EXIT_SUCCESS;
2572
2573 err:
2574    ERR_print_errors(bio_err);
2575
2576    BIO_free(server);
2577    BIO_free(server_io);
2578    BIO_free(client);
2579    BIO_free(client_io);
2580    BIO_free(s_ssl_bio);
2581    BIO_free(c_ssl_bio);
2582
2583    if (should_negotiate != NULL && strcmp(should_negotiate, "fail-client") == 0)
2584        ret = (err_in_client != 0) ? EXIT_SUCCESS : EXIT_FAILURE;
2585    else if (should_negotiate != NULL && strcmp(should_negotiate, "fail-server") == 0)
2586        ret = (err_in_server != 0) ? EXIT_SUCCESS : EXIT_FAILURE;
2587
2588    return ret;
2589}
2590
2591#define W_READ  1
2592#define W_WRITE 2
2593#define C_DONE  1
2594#define S_DONE  2
2595
2596int doit(SSL *s_ssl, SSL *c_ssl, long count)
2597{
2598    char *cbuf = NULL, *sbuf = NULL;
2599    long bufsiz;
2600    long cw_num = count, cr_num = count;
2601    long sw_num = count, sr_num = count;
2602    int ret = EXIT_FAILURE;
2603    BIO *c_to_s = NULL;
2604    BIO *s_to_c = NULL;
2605    BIO *c_bio = NULL;
2606    BIO *s_bio = NULL;
2607    int c_r, c_w, s_r, s_w;
2608    int i, j;
2609    int done = 0;
2610    int c_write, s_write;
2611    int do_server = 0, do_client = 0;
2612    int max_frag = 5 * 1024;
2613    int err_in_client = 0;
2614    int err_in_server = 0;
2615
2616    bufsiz = count > 40 * 1024 ? 40 * 1024 : count;
2617
2618    if ((cbuf = OPENSSL_zalloc(bufsiz)) == NULL)
2619        goto err;
2620    if ((sbuf = OPENSSL_zalloc(bufsiz)) == NULL)
2621        goto err;
2622
2623    c_to_s = BIO_new(BIO_s_mem());
2624    s_to_c = BIO_new(BIO_s_mem());
2625    if ((s_to_c == NULL) || (c_to_s == NULL)) {
2626        ERR_print_errors(bio_err);
2627        goto err;
2628    }
2629
2630    c_bio = BIO_new(BIO_f_ssl());
2631    s_bio = BIO_new(BIO_f_ssl());
2632    if ((c_bio == NULL) || (s_bio == NULL)) {
2633        ERR_print_errors(bio_err);
2634        goto err;
2635    }
2636
2637    SSL_set_connect_state(c_ssl);
2638    SSL_set_bio(c_ssl, s_to_c, c_to_s);
2639    SSL_set_max_send_fragment(c_ssl, max_frag);
2640    BIO_set_ssl(c_bio, c_ssl, BIO_NOCLOSE);
2641
2642    /*
2643     * We've just given our ref to these BIOs to c_ssl. We need another one to
2644     * give to s_ssl
2645     */
2646    if (!BIO_up_ref(c_to_s)) {
2647        /* c_to_s and s_to_c will get freed when we free c_ssl */
2648        c_to_s = NULL;
2649        s_to_c = NULL;
2650        goto err;
2651    }
2652    if (!BIO_up_ref(s_to_c)) {
2653        /* s_to_c will get freed when we free c_ssl */
2654        s_to_c = NULL;
2655        goto err;
2656    }
2657
2658    SSL_set_accept_state(s_ssl);
2659    SSL_set_bio(s_ssl, c_to_s, s_to_c);
2660
2661    /* We've used up all our refs to these now */
2662    c_to_s = NULL;
2663    s_to_c = NULL;
2664
2665    SSL_set_max_send_fragment(s_ssl, max_frag);
2666    BIO_set_ssl(s_bio, s_ssl, BIO_NOCLOSE);
2667
2668    c_r = 0;
2669    s_r = 1;
2670    c_w = 1;
2671    s_w = 0;
2672    c_write = 1, s_write = 0;
2673
2674    /* We can always do writes */
2675    for (;;) {
2676        do_server = 0;
2677        do_client = 0;
2678
2679        i = (int)BIO_pending(s_bio);
2680        if ((i && s_r) || s_w)
2681            do_server = 1;
2682
2683        i = (int)BIO_pending(c_bio);
2684        if ((i && c_r) || c_w)
2685            do_client = 1;
2686
2687        if (do_server && debug) {
2688            if (SSL_in_init(s_ssl))
2689                printf("server waiting in SSL_accept - %s\n",
2690                       SSL_state_string_long(s_ssl));
2691        }
2692
2693        if (do_client && debug) {
2694            if (SSL_in_init(c_ssl))
2695                printf("client waiting in SSL_connect - %s\n",
2696                       SSL_state_string_long(c_ssl));
2697        }
2698
2699        if (!do_client && !do_server) {
2700            fprintf(stdout, "ERROR IN STARTUP\n");
2701            ERR_print_errors(bio_err);
2702            goto err;
2703        }
2704        if (do_client && !(done & C_DONE)) {
2705            if (c_write) {
2706                j = (cw_num > bufsiz) ? (int)bufsiz : (int)cw_num;
2707                i = BIO_write(c_bio, cbuf, j);
2708                if (i < 0) {
2709                    c_r = 0;
2710                    c_w = 0;
2711                    if (BIO_should_retry(c_bio)) {
2712                        if (BIO_should_read(c_bio))
2713                            c_r = 1;
2714                        if (BIO_should_write(c_bio))
2715                            c_w = 1;
2716                    } else {
2717                        fprintf(stderr, "ERROR in CLIENT\n");
2718                        err_in_client = 1;
2719                        ERR_print_errors(bio_err);
2720                        goto err;
2721                    }
2722                } else if (i == 0) {
2723                    fprintf(stderr, "SSL CLIENT STARTUP FAILED\n");
2724                    goto err;
2725                } else {
2726                    if (debug)
2727                        printf("client wrote %d\n", i);
2728                    /* ok */
2729                    s_r = 1;
2730                    c_write = 0;
2731                    cw_num -= i;
2732                    if (max_frag > 1029)
2733                        SSL_set_max_send_fragment(c_ssl, max_frag -= 5);
2734                }
2735            } else {
2736                i = BIO_read(c_bio, cbuf, bufsiz);
2737                if (i < 0) {
2738                    c_r = 0;
2739                    c_w = 0;
2740                    if (BIO_should_retry(c_bio)) {
2741                        if (BIO_should_read(c_bio))
2742                            c_r = 1;
2743                        if (BIO_should_write(c_bio))
2744                            c_w = 1;
2745                    } else {
2746                        fprintf(stderr, "ERROR in CLIENT\n");
2747                        err_in_client = 1;
2748                        ERR_print_errors(bio_err);
2749                        goto err;
2750                    }
2751                } else if (i == 0) {
2752                    fprintf(stderr, "SSL CLIENT STARTUP FAILED\n");
2753                    goto err;
2754                } else {
2755                    if (debug)
2756                        printf("client read %d\n", i);
2757                    cr_num -= i;
2758                    if (sw_num > 0) {
2759                        s_write = 1;
2760                        s_w = 1;
2761                    }
2762                    if (cr_num <= 0) {
2763                        s_write = 1;
2764                        s_w = 1;
2765                        done = S_DONE | C_DONE;
2766                    }
2767                }
2768            }
2769        }
2770
2771        if (do_server && !(done & S_DONE)) {
2772            if (!s_write) {
2773                i = BIO_read(s_bio, sbuf, bufsiz);
2774                if (i < 0) {
2775                    s_r = 0;
2776                    s_w = 0;
2777                    if (BIO_should_retry(s_bio)) {
2778                        if (BIO_should_read(s_bio))
2779                            s_r = 1;
2780                        if (BIO_should_write(s_bio))
2781                            s_w = 1;
2782                    } else {
2783                        fprintf(stderr, "ERROR in SERVER\n");
2784                        err_in_server = 1;
2785                        ERR_print_errors(bio_err);
2786                        goto err;
2787                    }
2788                } else if (i == 0) {
2789                    ERR_print_errors(bio_err);
2790                    fprintf(stderr,
2791                            "SSL SERVER STARTUP FAILED in SSL_read\n");
2792                    goto err;
2793                } else {
2794                    if (debug)
2795                        printf("server read %d\n", i);
2796                    sr_num -= i;
2797                    if (cw_num > 0) {
2798                        c_write = 1;
2799                        c_w = 1;
2800                    }
2801                    if (sr_num <= 0) {
2802                        s_write = 1;
2803                        s_w = 1;
2804                        c_write = 0;
2805                    }
2806                }
2807            } else {
2808                j = (sw_num > bufsiz) ? (int)bufsiz : (int)sw_num;
2809                i = BIO_write(s_bio, sbuf, j);
2810                if (i < 0) {
2811                    s_r = 0;
2812                    s_w = 0;
2813                    if (BIO_should_retry(s_bio)) {
2814                        if (BIO_should_read(s_bio))
2815                            s_r = 1;
2816                        if (BIO_should_write(s_bio))
2817                            s_w = 1;
2818                    } else {
2819                        fprintf(stderr, "ERROR in SERVER\n");
2820                        err_in_server = 1;
2821                        ERR_print_errors(bio_err);
2822                        goto err;
2823                    }
2824                } else if (i == 0) {
2825                    ERR_print_errors(bio_err);
2826                    fprintf(stderr,
2827                            "SSL SERVER STARTUP FAILED in SSL_write\n");
2828                    goto err;
2829                } else {
2830                    if (debug)
2831                        printf("server wrote %d\n", i);
2832                    sw_num -= i;
2833                    s_write = 0;
2834                    c_r = 1;
2835                    if (sw_num <= 0)
2836                        done |= S_DONE;
2837                    if (max_frag > 1029)
2838                        SSL_set_max_send_fragment(s_ssl, max_frag -= 5);
2839                }
2840            }
2841        }
2842
2843        if ((done & S_DONE) && (done & C_DONE))
2844            break;
2845    }
2846
2847    if (verbose)
2848        print_details(c_ssl, "DONE: ");
2849#ifndef OPENSSL_NO_NEXTPROTONEG
2850    if (verify_npn(c_ssl, s_ssl) < 0)
2851        goto err;
2852#endif
2853    if (verify_serverinfo() < 0) {
2854        fprintf(stderr, "Server info verify error\n");
2855        goto err;
2856    }
2857    if (custom_ext_error) {
2858        fprintf(stderr, "Custom extension error\n");
2859        goto err;
2860    }
2861    ret = EXIT_SUCCESS;
2862 err:
2863    BIO_free(c_to_s);
2864    BIO_free(s_to_c);
2865    BIO_free_all(c_bio);
2866    BIO_free_all(s_bio);
2867    OPENSSL_free(cbuf);
2868    OPENSSL_free(sbuf);
2869
2870    if (should_negotiate != NULL && strcmp(should_negotiate, "fail-client") == 0)
2871        ret = (err_in_client != 0) ? EXIT_SUCCESS : EXIT_FAILURE;
2872    else if (should_negotiate != NULL && strcmp(should_negotiate, "fail-server") == 0)
2873        ret = (err_in_server != 0) ? EXIT_SUCCESS : EXIT_FAILURE;
2874
2875    return ret;
2876}
2877
2878static int verify_callback(int ok, X509_STORE_CTX *ctx)
2879{
2880    char *s, buf[256];
2881
2882    s = X509_NAME_oneline(X509_get_subject_name(X509_STORE_CTX_get_current_cert(ctx)),
2883                          buf, sizeof(buf));
2884    if (s != NULL) {
2885        if (ok)
2886            printf("depth=%d %s\n", X509_STORE_CTX_get_error_depth(ctx), buf);
2887        else {
2888            fprintf(stderr, "depth=%d error=%d %s\n",
2889                    X509_STORE_CTX_get_error_depth(ctx),
2890                    X509_STORE_CTX_get_error(ctx), buf);
2891        }
2892    }
2893
2894    if (ok == 0) {
2895        int i = X509_STORE_CTX_get_error(ctx);
2896
2897        switch (i) {
2898        default:
2899            fprintf(stderr, "Error string: %s\n",
2900                    X509_verify_cert_error_string(i));
2901            break;
2902        case X509_V_ERR_CERT_NOT_YET_VALID:
2903        case X509_V_ERR_CERT_HAS_EXPIRED:
2904        case X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT:
2905            ok = 1;
2906            break;
2907        }
2908    }
2909
2910    return ok;
2911}
2912
2913static int app_verify_callback(X509_STORE_CTX *ctx, void *arg)
2914{
2915    int ok = 1;
2916    struct app_verify_arg *cb_arg = arg;
2917
2918    if (cb_arg->app_verify) {
2919        char *s = NULL, buf[256];
2920        X509 *c = X509_STORE_CTX_get0_cert(ctx);
2921
2922        printf("In app_verify_callback, allowing cert. ");
2923        printf("Arg is: %s\n", cb_arg->string);
2924        printf("Finished printing do we have a context? 0x%p a cert? 0x%p\n",
2925                (void *)ctx, (void *)c);
2926        if (c)
2927            s = X509_NAME_oneline(X509_get_subject_name(c), buf, 256);
2928        if (s != NULL) {
2929            printf("cert depth=%d %s\n",
2930                    X509_STORE_CTX_get_error_depth(ctx), buf);
2931        }
2932        return 1;
2933    }
2934
2935    ok = X509_verify_cert(ctx);
2936
2937    return ok;
2938}
2939
2940#ifndef OPENSSL_NO_PSK
2941/* convert the PSK key (psk_key) in ascii to binary (psk) */
2942static int psk_key2bn(const char *pskkey, unsigned char *psk,
2943                      unsigned int max_psk_len)
2944{
2945    int ret;
2946    BIGNUM *bn = NULL;
2947
2948    ret = BN_hex2bn(&bn, pskkey);
2949    if (!ret) {
2950        BIO_printf(bio_err, "Could not convert PSK key '%s' to BIGNUM\n",
2951                   pskkey);
2952        BN_free(bn);
2953        return 0;
2954    }
2955    if (BN_num_bytes(bn) > (int)max_psk_len) {
2956        BIO_printf(bio_err,
2957                   "psk buffer of callback is too small (%d) for key (%d)\n",
2958                   max_psk_len, BN_num_bytes(bn));
2959        BN_free(bn);
2960        return 0;
2961    }
2962    ret = BN_bn2bin(bn, psk);
2963    BN_free(bn);
2964    return ret;
2965}
2966
2967static unsigned int psk_client_callback(SSL *ssl, const char *hint,
2968                                        char *identity,
2969                                        unsigned int max_identity_len,
2970                                        unsigned char *psk,
2971                                        unsigned int max_psk_len)
2972{
2973    int ret;
2974    unsigned int psk_len = 0;
2975
2976    ret = BIO_snprintf(identity, max_identity_len, "Client_identity");
2977    if (ret < 0)
2978        goto out_err;
2979    if (debug)
2980        fprintf(stderr, "client: created identity '%s' len=%d\n", identity,
2981                ret);
2982    ret = psk_key2bn(psk_key, psk, max_psk_len);
2983    if (ret < 0)
2984        goto out_err;
2985    psk_len = ret;
2986 out_err:
2987    return psk_len;
2988}
2989
2990static unsigned int psk_server_callback(SSL *ssl, const char *identity,
2991                                        unsigned char *psk,
2992                                        unsigned int max_psk_len)
2993{
2994    unsigned int psk_len = 0;
2995
2996    if (strcmp(identity, "Client_identity") != 0) {
2997        BIO_printf(bio_err, "server: PSK error: client identity not found\n");
2998        return 0;
2999    }
3000    psk_len = psk_key2bn(psk_key, psk, max_psk_len);
3001    return psk_len;
3002}
3003#endif
3004