1 /*
2  * Copyright 1995-2021 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 
76 static SSL_CTX *s_ctx = NULL;
77 static 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 
85 static int verify_callback(int ok, X509_STORE_CTX *ctx);
86 static int app_verify_callback(X509_STORE_CTX *ctx, void *arg);
87 #define APP_CALLBACK_STRING "Test Callback Argument"
88 struct app_verify_arg {
89     char *string;
90     int app_verify;
91 };
92 
93 static char *psk_key = NULL;    /* by default PSK is not used */
94 #ifndef OPENSSL_NO_PSK
95 static 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);
100 static unsigned int psk_server_callback(SSL *ssl, const char *identity,
101                                         unsigned char *psk,
102                                         unsigned int max_psk_len);
103 #endif
104 
105 static BIO *bio_stdout = NULL;
106 
107 #ifndef OPENSSL_NO_NEXTPROTONEG
108 /* Note that this code assumes that this is only a one element list: */
109 static const char NEXT_PROTO_STRING[] = "\x09testproto";
110 static int npn_client = 0;
111 static int npn_server = 0;
112 static int npn_server_reject = 0;
113 
cb_client_npn(SSL * s,unsigned char ** out,unsigned char * outlen,const unsigned char * in,unsigned int inlen,void * arg)114 static 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 
cb_server_npn(SSL * s,const unsigned char ** data,unsigned int * len,void * arg)128 static 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 
cb_server_rejects_npn(SSL * s,const unsigned char ** data,unsigned int * len,void * arg)136 static 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 
verify_npn(SSL * client,SSL * server)142 static 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 
188 static const char *alpn_client;
189 static char *alpn_server;
190 static char *alpn_server2;
191 static const char *alpn_expected;
192 static unsigned char *alpn_selected;
193 static const char *server_min_proto;
194 static const char *server_max_proto;
195 static const char *client_min_proto;
196 static const char *client_max_proto;
197 static const char *should_negotiate;
198 static const char *sn_client;
199 static const char *sn_server1;
200 static const char *sn_server2;
201 static int sn_expect = 0;
202 static const char *server_sess_out;
203 static const char *server_sess_in;
204 static const char *client_sess_out;
205 static const char *client_sess_in;
206 static SSL_SESSION *server_sess;
207 static SSL_SESSION *client_sess;
208 
servername_cb(SSL * s,int * ad,void * arg)209 static 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             !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 }
verify_servername(SSL * client,SSL * server)226 static 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  */
next_protos_parse(size_t * outlen,const char * in)255 static 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 
cb_server_alpn(SSL * s,const unsigned char ** out,unsigned char * outlen,const unsigned char * in,unsigned int inlen,void * arg)286 static 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     memcpy(alpn_selected, *out, *outlen);
314     *out = alpn_selected;
315 
316     OPENSSL_free(protos);
317     return SSL_TLSEXT_ERR_OK;
318 }
319 
verify_alpn(SSL * client,SSL * server)320 static int verify_alpn(SSL *client, SSL *server)
321 {
322     const unsigned char *client_proto, *server_proto;
323     unsigned int client_proto_len = 0, server_proto_len = 0;
324     SSL_get0_alpn_selected(client, &client_proto, &client_proto_len);
325     SSL_get0_alpn_selected(server, &server_proto, &server_proto_len);
326 
327     OPENSSL_free(alpn_selected);
328     alpn_selected = NULL;
329 
330     if (client_proto_len != server_proto_len) {
331         BIO_printf(bio_stdout, "ALPN selected protocols differ!\n");
332         goto err;
333     }
334 
335     if (client_proto != NULL &&
336         memcmp(client_proto, server_proto, client_proto_len) != 0) {
337         BIO_printf(bio_stdout, "ALPN selected protocols differ!\n");
338         goto err;
339     }
340 
341     if (client_proto_len > 0 && alpn_expected == NULL) {
342         BIO_printf(bio_stdout, "ALPN unexpectedly negotiated\n");
343         goto err;
344     }
345 
346     if (alpn_expected != NULL &&
347         (client_proto_len != strlen(alpn_expected) ||
348          memcmp(client_proto, alpn_expected, client_proto_len) != 0)) {
349         BIO_printf(bio_stdout,
350                    "ALPN selected protocols not equal to expected protocol: %s\n",
351                    alpn_expected);
352         goto err;
353     }
354 
355     return 0;
356 
357  err:
358     BIO_printf(bio_stdout, "ALPN results: client: '");
359     BIO_write(bio_stdout, client_proto, client_proto_len);
360     BIO_printf(bio_stdout, "', server: '");
361     BIO_write(bio_stdout, server_proto, server_proto_len);
362     BIO_printf(bio_stdout, "'\n");
363     BIO_printf(bio_stdout, "ALPN configured: client: '%s', server: '",
364                    alpn_client);
365     if (SSL_get_SSL_CTX(server) == s_ctx2) {
366         BIO_printf(bio_stdout, "%s'\n",
367                    alpn_server2);
368     } else {
369         BIO_printf(bio_stdout, "%s'\n",
370                    alpn_server);
371     }
372     return -1;
373 }
374 
375 /*
376  * WARNING : below extension types are *NOT* IETF assigned, and could
377  * conflict if these types are reassigned and handled specially by OpenSSL
378  * in the future
379  */
380 #define TACK_EXT_TYPE 62208
381 #define CUSTOM_EXT_TYPE_0 1000
382 #define CUSTOM_EXT_TYPE_1 1001
383 #define CUSTOM_EXT_TYPE_2 1002
384 #define CUSTOM_EXT_TYPE_3 1003
385 
386 static const char custom_ext_cli_string[] = "abc";
387 static const char custom_ext_srv_string[] = "defg";
388 
389 /* These set from cmdline */
390 static char *serverinfo_file = NULL;
391 static int serverinfo_sct = 0;
392 static int serverinfo_tack = 0;
393 
394 /* These set based on extension callbacks */
395 static int serverinfo_sct_seen = 0;
396 static int serverinfo_tack_seen = 0;
397 static int serverinfo_other_seen = 0;
398 
399 /* This set from cmdline */
400 static int custom_ext = 0;
401 
402 /* This set based on extension callbacks */
403 static int custom_ext_error = 0;
404 
serverinfo_cli_parse_cb(SSL * s,unsigned int ext_type,const unsigned char * in,size_t inlen,int * al,void * arg)405 static int serverinfo_cli_parse_cb(SSL *s, unsigned int ext_type,
406                                    const unsigned char *in, size_t inlen,
407                                    int *al, void *arg)
408 {
409     if (ext_type == TLSEXT_TYPE_signed_certificate_timestamp)
410         serverinfo_sct_seen++;
411     else if (ext_type == TACK_EXT_TYPE)
412         serverinfo_tack_seen++;
413     else
414         serverinfo_other_seen++;
415     return 1;
416 }
417 
verify_serverinfo(void)418 static int verify_serverinfo(void)
419 {
420     if (serverinfo_sct != serverinfo_sct_seen)
421         return -1;
422     if (serverinfo_tack != serverinfo_tack_seen)
423         return -1;
424     if (serverinfo_other_seen)
425         return -1;
426     return 0;
427 }
428 
429 /*-
430  * Four test cases for custom extensions:
431  * 0 - no ClientHello extension or ServerHello response
432  * 1 - ClientHello with "abc", no response
433  * 2 - ClientHello with "abc", empty response
434  * 3 - ClientHello with "abc", "defg" response
435  */
436 
custom_ext_0_cli_add_cb(SSL * s,unsigned int ext_type,const unsigned char ** out,size_t * outlen,int * al,void * arg)437 static int custom_ext_0_cli_add_cb(SSL *s, unsigned int ext_type,
438                                    const unsigned char **out,
439                                    size_t *outlen, int *al, void *arg)
440 {
441     if (ext_type != CUSTOM_EXT_TYPE_0)
442         custom_ext_error = 1;
443     return 0;                   /* Don't send an extension */
444 }
445 
custom_ext_0_cli_parse_cb(SSL * s,unsigned int ext_type,const unsigned char * in,size_t inlen,int * al,void * arg)446 static int custom_ext_0_cli_parse_cb(SSL *s, unsigned int ext_type,
447                                      const unsigned char *in,
448                                      size_t inlen, int *al, void *arg)
449 {
450     return 1;
451 }
452 
custom_ext_1_cli_add_cb(SSL * s,unsigned int ext_type,const unsigned char ** out,size_t * outlen,int * al,void * arg)453 static int custom_ext_1_cli_add_cb(SSL *s, unsigned int ext_type,
454                                    const unsigned char **out,
455                                    size_t *outlen, int *al, void *arg)
456 {
457     if (ext_type != CUSTOM_EXT_TYPE_1)
458         custom_ext_error = 1;
459     *out = (const unsigned char *)custom_ext_cli_string;
460     *outlen = strlen(custom_ext_cli_string);
461     return 1;                   /* Send "abc" */
462 }
463 
custom_ext_1_cli_parse_cb(SSL * s,unsigned int ext_type,const unsigned char * in,size_t inlen,int * al,void * arg)464 static int custom_ext_1_cli_parse_cb(SSL *s, unsigned int ext_type,
465                                      const unsigned char *in,
466                                      size_t inlen, int *al, void *arg)
467 {
468     return 1;
469 }
470 
custom_ext_2_cli_add_cb(SSL * s,unsigned int ext_type,const unsigned char ** out,size_t * outlen,int * al,void * arg)471 static int custom_ext_2_cli_add_cb(SSL *s, unsigned int ext_type,
472                                    const unsigned char **out,
473                                    size_t *outlen, int *al, void *arg)
474 {
475     if (ext_type != CUSTOM_EXT_TYPE_2)
476         custom_ext_error = 1;
477     *out = (const unsigned char *)custom_ext_cli_string;
478     *outlen = strlen(custom_ext_cli_string);
479     return 1;                   /* Send "abc" */
480 }
481 
custom_ext_2_cli_parse_cb(SSL * s,unsigned int ext_type,const unsigned char * in,size_t inlen,int * al,void * arg)482 static int custom_ext_2_cli_parse_cb(SSL *s, unsigned int ext_type,
483                                      const unsigned char *in,
484                                      size_t inlen, int *al, void *arg)
485 {
486     if (ext_type != CUSTOM_EXT_TYPE_2)
487         custom_ext_error = 1;
488     if (inlen != 0)
489         custom_ext_error = 1;   /* Should be empty response */
490     return 1;
491 }
492 
custom_ext_3_cli_add_cb(SSL * s,unsigned int ext_type,const unsigned char ** out,size_t * outlen,int * al,void * arg)493 static int custom_ext_3_cli_add_cb(SSL *s, unsigned int ext_type,
494                                    const unsigned char **out,
495                                    size_t *outlen, int *al, void *arg)
496 {
497     if (ext_type != CUSTOM_EXT_TYPE_3)
498         custom_ext_error = 1;
499     *out = (const unsigned char *)custom_ext_cli_string;
500     *outlen = strlen(custom_ext_cli_string);
501     return 1;                   /* Send "abc" */
502 }
503 
custom_ext_3_cli_parse_cb(SSL * s,unsigned int ext_type,const unsigned char * in,size_t inlen,int * al,void * arg)504 static int custom_ext_3_cli_parse_cb(SSL *s, unsigned int ext_type,
505                                      const unsigned char *in,
506                                      size_t inlen, int *al, void *arg)
507 {
508     if (ext_type != CUSTOM_EXT_TYPE_3)
509         custom_ext_error = 1;
510     if (inlen != strlen(custom_ext_srv_string))
511         custom_ext_error = 1;
512     if (memcmp(custom_ext_srv_string, in, inlen) != 0)
513         custom_ext_error = 1;   /* Check for "defg" */
514     return 1;
515 }
516 
517 /*
518  * custom_ext_0_cli_add_cb returns 0 - the server won't receive a callback
519  * for this extension
520  */
custom_ext_0_srv_parse_cb(SSL * s,unsigned int ext_type,const unsigned char * in,size_t inlen,int * al,void * arg)521 static int custom_ext_0_srv_parse_cb(SSL *s, unsigned int ext_type,
522                                      const unsigned char *in,
523                                      size_t inlen, int *al, void *arg)
524 {
525     custom_ext_error = 1;
526     return 1;
527 }
528 
529 /* 'add' callbacks are only called if the 'parse' callback is called */
custom_ext_0_srv_add_cb(SSL * s,unsigned int ext_type,const unsigned char ** out,size_t * outlen,int * al,void * arg)530 static int custom_ext_0_srv_add_cb(SSL *s, unsigned int ext_type,
531                                    const unsigned char **out,
532                                    size_t *outlen, int *al, void *arg)
533 {
534     /* Error: should not have been called */
535     custom_ext_error = 1;
536     return 0;                   /* Don't send an extension */
537 }
538 
custom_ext_1_srv_parse_cb(SSL * s,unsigned int ext_type,const unsigned char * in,size_t inlen,int * al,void * arg)539 static int custom_ext_1_srv_parse_cb(SSL *s, unsigned int ext_type,
540                                      const unsigned char *in,
541                                      size_t inlen, int *al, void *arg)
542 {
543     if (ext_type != CUSTOM_EXT_TYPE_1)
544         custom_ext_error = 1;
545     /* Check for "abc" */
546     if (inlen != strlen(custom_ext_cli_string))
547         custom_ext_error = 1;
548     if (memcmp(in, custom_ext_cli_string, inlen) != 0)
549         custom_ext_error = 1;
550     return 1;
551 }
552 
custom_ext_1_srv_add_cb(SSL * s,unsigned int ext_type,const unsigned char ** out,size_t * outlen,int * al,void * arg)553 static int custom_ext_1_srv_add_cb(SSL *s, unsigned int ext_type,
554                                    const unsigned char **out,
555                                    size_t *outlen, int *al, void *arg)
556 {
557     return 0;                   /* Don't send an extension */
558 }
559 
custom_ext_2_srv_parse_cb(SSL * s,unsigned int ext_type,const unsigned char * in,size_t inlen,int * al,void * arg)560 static int custom_ext_2_srv_parse_cb(SSL *s, unsigned int ext_type,
561                                      const unsigned char *in,
562                                      size_t inlen, int *al, void *arg)
563 {
564     if (ext_type != CUSTOM_EXT_TYPE_2)
565         custom_ext_error = 1;
566     /* Check for "abc" */
567     if (inlen != strlen(custom_ext_cli_string))
568         custom_ext_error = 1;
569     if (memcmp(in, custom_ext_cli_string, inlen) != 0)
570         custom_ext_error = 1;
571     return 1;
572 }
573 
custom_ext_2_srv_add_cb(SSL * s,unsigned int ext_type,const unsigned char ** out,size_t * outlen,int * al,void * arg)574 static int custom_ext_2_srv_add_cb(SSL *s, unsigned int ext_type,
575                                    const unsigned char **out,
576                                    size_t *outlen, int *al, void *arg)
577 {
578     *out = NULL;
579     *outlen = 0;
580     return 1;                   /* Send empty extension */
581 }
582 
custom_ext_3_srv_parse_cb(SSL * s,unsigned int ext_type,const unsigned char * in,size_t inlen,int * al,void * arg)583 static int custom_ext_3_srv_parse_cb(SSL *s, unsigned int ext_type,
584                                      const unsigned char *in,
585                                      size_t inlen, int *al, void *arg)
586 {
587     if (ext_type != CUSTOM_EXT_TYPE_3)
588         custom_ext_error = 1;
589     /* Check for "abc" */
590     if (inlen != strlen(custom_ext_cli_string))
591         custom_ext_error = 1;
592     if (memcmp(in, custom_ext_cli_string, inlen) != 0)
593         custom_ext_error = 1;
594     return 1;
595 }
596 
custom_ext_3_srv_add_cb(SSL * s,unsigned int ext_type,const unsigned char ** out,size_t * outlen,int * al,void * arg)597 static int custom_ext_3_srv_add_cb(SSL *s, unsigned int ext_type,
598                                    const unsigned char **out,
599                                    size_t *outlen, int *al, void *arg)
600 {
601     *out = (const unsigned char *)custom_ext_srv_string;
602     *outlen = strlen(custom_ext_srv_string);
603     return 1;                   /* Send "defg" */
604 }
605 
606 static char *cipher = NULL;
607 static char *ciphersuites = NULL;
608 static int verbose = 0;
609 static int debug = 0;
610 
611 int doit_localhost(SSL *s_ssl, SSL *c_ssl, int family,
612                    long bytes, clock_t *s_time, clock_t *c_time);
613 int doit_biopair(SSL *s_ssl, SSL *c_ssl, long bytes, clock_t *s_time,
614                  clock_t *c_time);
615 int doit(SSL *s_ssl, SSL *c_ssl, long bytes);
616 
sv_usage(void)617 static void sv_usage(void)
618 {
619     fprintf(stderr, "usage: ssltest [args ...]\n");
620     fprintf(stderr, "\n");
621     fprintf(stderr, " -server_auth  - check server certificate\n");
622     fprintf(stderr, " -client_auth  - do client authentication\n");
623     fprintf(stderr, " -v            - more output\n");
624     fprintf(stderr, " -d            - debug output\n");
625     fprintf(stderr, " -reuse        - use session-id reuse\n");
626     fprintf(stderr, " -num <val>    - number of connections to perform\n");
627     fprintf(stderr,
628             " -bytes <val>  - number of bytes to swap between client/server\n");
629 #ifndef OPENSSL_NO_DH
630     fprintf(stderr,
631             " -dhe512       - use 512 bit key for DHE (to test failure)\n");
632     fprintf(stderr,
633             " -dhe1024      - use 1024 bit key (safe prime) for DHE (default, no-op)\n");
634     fprintf(stderr,
635             " -dhe1024dsa   - use 1024 bit key (with 160-bit subprime) for DHE\n");
636 #endif
637     fprintf(stderr, " -no_dhe       - disable DHE\n");
638 #ifndef OPENSSL_NO_EC
639     fprintf(stderr, " -no_ecdhe     - disable ECDHE\n");
640 #endif
641 #ifndef OPENSSL_NO_PSK
642     fprintf(stderr, " -psk arg      - PSK in hex (without 0x)\n");
643 #endif
644 #ifndef OPENSSL_NO_SSL3
645     fprintf(stderr, " -ssl3         - use SSLv3\n");
646 #endif
647 #ifndef OPENSSL_NO_TLS1
648     fprintf(stderr, " -tls1         - use TLSv1\n");
649 #endif
650 #ifndef OPENSSL_NO_DTLS
651     fprintf(stderr, " -dtls         - use DTLS\n");
652 #ifndef OPENSSL_NO_DTLS1
653     fprintf(stderr, " -dtls1        - use DTLSv1\n");
654 #endif
655 #ifndef OPENSSL_NO_DTLS1_2
656     fprintf(stderr, " -dtls12       - use DTLSv1.2\n");
657 #endif
658 #endif
659     fprintf(stderr, " -CApath arg   - PEM format directory of CA's\n");
660     fprintf(stderr, " -CAfile arg   - PEM format file of CA's\n");
661     fprintf(stderr, " -cert arg     - Server certificate file\n");
662     fprintf(stderr,
663             " -key arg      - Server key file (default: same as -cert)\n");
664     fprintf(stderr, " -c_cert arg   - Client certificate file\n");
665     fprintf(stderr,
666             " -c_key arg    - Client key file (default: same as -c_cert)\n");
667     fprintf(stderr, " -cipher arg   - The TLSv1.2 and below cipher list\n");
668     fprintf(stderr, " -ciphersuites arg   - The TLSv1.3 ciphersuites\n");
669     fprintf(stderr, " -bio_pair     - Use BIO pairs\n");
670     fprintf(stderr, " -ipv4         - Use IPv4 connection on localhost\n");
671     fprintf(stderr, " -ipv6         - Use IPv6 connection on localhost\n");
672     fprintf(stderr, " -f            - Test even cases that can't work\n");
673     fprintf(stderr,
674             " -time         - measure processor time used by client and server\n");
675     fprintf(stderr, " -zlib         - use zlib compression\n");
676 #ifndef OPENSSL_NO_NEXTPROTONEG
677     fprintf(stderr, " -npn_client - have client side offer NPN\n");
678     fprintf(stderr, " -npn_server - have server side offer NPN\n");
679     fprintf(stderr, " -npn_server_reject - have server reject NPN\n");
680 #endif
681     fprintf(stderr, " -serverinfo_file file - have server use this file\n");
682     fprintf(stderr, " -serverinfo_sct  - have client offer and expect SCT\n");
683     fprintf(stderr,
684             " -serverinfo_tack - have client offer and expect TACK\n");
685     fprintf(stderr,
686             " -custom_ext - try various custom extension callbacks\n");
687     fprintf(stderr, " -alpn_client <string> - have client side offer ALPN\n");
688     fprintf(stderr, " -alpn_server <string> - have server side offer ALPN\n");
689     fprintf(stderr, " -alpn_server1 <string> - alias for -alpn_server\n");
690     fprintf(stderr, " -alpn_server2 <string> - have server side context 2 offer ALPN\n");
691     fprintf(stderr,
692             " -alpn_expected <string> - the ALPN protocol that should be negotiated\n");
693     fprintf(stderr, " -server_min_proto <string> - Minimum version the server should support\n");
694     fprintf(stderr, " -server_max_proto <string> - Maximum version the server should support\n");
695     fprintf(stderr, " -client_min_proto <string> - Minimum version the client should support\n");
696     fprintf(stderr, " -client_max_proto <string> - Maximum version the client should support\n");
697     fprintf(stderr, " -should_negotiate <string> - The version that should be negotiated, fail-client or fail-server\n");
698 #ifndef OPENSSL_NO_CT
699     fprintf(stderr, " -noct         - no certificate transparency\n");
700     fprintf(stderr, " -requestct    - request certificate transparency\n");
701     fprintf(stderr, " -requirect    - require certificate transparency\n");
702 #endif
703     fprintf(stderr, " -sn_client <string>  - have client request this servername\n");
704     fprintf(stderr, " -sn_server1 <string> - have server context 1 respond to this servername\n");
705     fprintf(stderr, " -sn_server2 <string> - have server context 2 respond to this servername\n");
706     fprintf(stderr, " -sn_expect1          - expected server 1\n");
707     fprintf(stderr, " -sn_expect2          - expected server 2\n");
708     fprintf(stderr, " -server_sess_out <file>    - Save the server session to a file\n");
709     fprintf(stderr, " -server_sess_in <file>     - Read the server session from a file\n");
710     fprintf(stderr, " -client_sess_out <file>    - Save the client session to a file\n");
711     fprintf(stderr, " -client_sess_in <file>     - Read the client session from a file\n");
712     fprintf(stderr, " -should_reuse <number>     - The expected state of reusing the session\n");
713     fprintf(stderr, " -no_ticket    - do not issue TLS session ticket\n");
714     fprintf(stderr, " -provider <name>    - Load the given provider into the library context\n");
715     fprintf(stderr, " -config <cnf>    - Load the given config file into the library context\n");
716 }
717 
print_key_details(BIO * out,EVP_PKEY * key)718 static void print_key_details(BIO *out, EVP_PKEY *key)
719 {
720     int keyid = EVP_PKEY_get_id(key);
721 
722 #ifndef OPENSSL_NO_EC
723     if (keyid == EVP_PKEY_EC) {
724         char group[80];
725         size_t size;
726 
727         if (!EVP_PKEY_get_group_name(key, group, sizeof(group), &size))
728             strcpy(group, "unknown group");
729         BIO_printf(out, "%d bits EC (%s)", EVP_PKEY_get_bits(key), group);
730     } else
731 #endif
732     {
733         const char *algname;
734         switch (keyid) {
735         case EVP_PKEY_RSA:
736             algname = "RSA";
737             break;
738         case EVP_PKEY_DSA:
739             algname = "DSA";
740             break;
741         case EVP_PKEY_DH:
742             algname = "DH";
743             break;
744         default:
745             algname = OBJ_nid2sn(keyid);
746             break;
747         }
748         BIO_printf(out, "%d bits %s", EVP_PKEY_get_bits(key), algname);
749     }
750 }
751 
print_details(SSL * c_ssl,const char * prefix)752 static void print_details(SSL *c_ssl, const char *prefix)
753 {
754     const SSL_CIPHER *ciph;
755     int mdnid;
756     X509 *cert;
757     EVP_PKEY *pkey;
758 
759     ciph = SSL_get_current_cipher(c_ssl);
760     BIO_printf(bio_stdout, "%s%s, cipher %s %s",
761                prefix,
762                SSL_get_version(c_ssl),
763                SSL_CIPHER_get_version(ciph), SSL_CIPHER_get_name(ciph));
764     cert = SSL_get0_peer_certificate(c_ssl);
765     if (cert != NULL) {
766         EVP_PKEY* pubkey = X509_get0_pubkey(cert);
767 
768         if (pubkey != NULL) {
769             BIO_puts(bio_stdout, ", ");
770             print_key_details(bio_stdout, pubkey);
771         }
772     }
773     if (SSL_get_peer_tmp_key(c_ssl, &pkey)) {
774         BIO_puts(bio_stdout, ", temp key: ");
775         print_key_details(bio_stdout, pkey);
776         EVP_PKEY_free(pkey);
777     }
778     if (SSL_get_peer_signature_nid(c_ssl, &mdnid))
779         BIO_printf(bio_stdout, ", digest=%s", OBJ_nid2sn(mdnid));
780     BIO_printf(bio_stdout, "\n");
781 }
782 
783 /*
784  * protocol_from_string - converts a protocol version string to a number
785  *
786  * Returns -1 on failure or the version on success
787  */
protocol_from_string(const char * value)788 static int protocol_from_string(const char *value)
789 {
790     struct protocol_versions {
791         const char *name;
792         int version;
793     };
794     static const struct protocol_versions versions[] = {
795         {"ssl3", SSL3_VERSION},
796         {"tls1", TLS1_VERSION},
797         {"tls1.1", TLS1_1_VERSION},
798         {"tls1.2", TLS1_2_VERSION},
799         {"tls1.3", TLS1_3_VERSION},
800         {"dtls1", DTLS1_VERSION},
801         {"dtls1.2", DTLS1_2_VERSION}};
802     size_t i;
803     size_t n = OSSL_NELEM(versions);
804 
805     for (i = 0; i < n; i++)
806         if (strcmp(versions[i].name, value) == 0)
807             return versions[i].version;
808     return -1;
809 }
810 
read_session(const char * filename)811 static SSL_SESSION *read_session(const char *filename)
812 {
813     SSL_SESSION *sess;
814     BIO *f = BIO_new_file(filename, "r");
815 
816     if (f == NULL) {
817         BIO_printf(bio_err, "Can't open session file %s\n", filename);
818         ERR_print_errors(bio_err);
819         return NULL;
820     }
821     sess = PEM_read_bio_SSL_SESSION(f, NULL, 0, NULL);
822     if (sess == NULL) {
823         BIO_printf(bio_err, "Can't parse session file %s\n", filename);
824         ERR_print_errors(bio_err);
825     }
826     BIO_free(f);
827     return sess;
828 }
829 
write_session(const char * filename,SSL_SESSION * sess)830 static int write_session(const char *filename, SSL_SESSION *sess)
831 {
832     BIO *f = BIO_new_file(filename, "w");
833 
834     if (sess == NULL) {
835         BIO_printf(bio_err, "No session information\n");
836         return 0;
837     }
838     if (f == NULL) {
839         BIO_printf(bio_err, "Can't open session file %s\n", filename);
840         ERR_print_errors(bio_err);
841         return 0;
842     }
843     PEM_write_bio_SSL_SESSION(f, sess);
844     BIO_free(f);
845     return 1;
846 }
847 
848 /*
849  * set_protocol_version - Sets protocol version minimum or maximum
850  *
851  * Returns 0 on failure and 1 on success
852  */
set_protocol_version(const char * version,SSL * ssl,int setting)853 static int set_protocol_version(const char *version, SSL *ssl, int setting)
854 {
855     if (version != NULL) {
856         int ver = protocol_from_string(version);
857         if (ver < 0) {
858             BIO_printf(bio_err, "Error parsing: %s\n", version);
859             return 0;
860         }
861         return SSL_ctrl(ssl, setting, ver, NULL);
862     }
863     return 1;
864 }
865 
main(int argc,char * argv[])866 int main(int argc, char *argv[])
867 {
868     const char *CApath = NULL, *CAfile = NULL;
869     int badop = 0;
870     enum { BIO_MEM, BIO_PAIR, BIO_IPV4, BIO_IPV6 } bio_type = BIO_MEM;
871     int force = 0;
872     int dtls1 = 0, dtls12 = 0, dtls = 0, tls1 = 0, tls1_2 = 0, ssl3 = 0;
873     int ret = EXIT_FAILURE;
874     int client_auth = 0;
875     int server_auth = 0, i;
876     struct app_verify_arg app_verify_arg =
877         { APP_CALLBACK_STRING, 0 };
878     SSL_CTX *c_ctx = NULL;
879     const SSL_METHOD *meth = NULL;
880     SSL *c_ssl, *s_ssl;
881     int number = 1, reuse = 0;
882     int should_reuse = -1;
883     int no_ticket = 0;
884     long bytes = 256L;
885 #ifndef OPENSSL_NO_DH
886     EVP_PKEY *dhpkey;
887     int dhe512 = 0, dhe1024dsa = 0;
888     int no_dhe = 0;
889 #endif
890     int no_psk = 0;
891     int print_time = 0;
892     clock_t s_time = 0, c_time = 0;
893 #ifndef OPENSSL_NO_COMP
894     int n, comp = 0;
895     COMP_METHOD *cm = NULL;
896     STACK_OF(SSL_COMP) *ssl_comp_methods = NULL;
897 #endif
898     int no_protocol;
899     int min_version = 0, max_version = 0;
900 #ifndef OPENSSL_NO_CT
901     /*
902      * Disable CT validation by default, because it will interfere with
903      * anything using custom extension handlers to deal with SCT extensions.
904      */
905     int ct_validation = 0;
906 #endif
907     SSL_CONF_CTX *s_cctx = NULL, *c_cctx = NULL, *s_cctx2 = NULL;
908     STACK_OF(OPENSSL_STRING) *conf_args = NULL;
909     char *arg = NULL, *argn = NULL;
910     const char *provider = NULL, *config = NULL;
911     OSSL_PROVIDER *thisprov = NULL, *defctxnull = NULL;
912     OSSL_LIB_CTX *libctx = NULL;
913 
914     verbose = 0;
915     debug = 0;
916 
917     bio_err = BIO_new_fp(stderr, BIO_NOCLOSE | BIO_FP_TEXT);
918     bio_stdout = BIO_new_fp(stdout, BIO_NOCLOSE | BIO_FP_TEXT);
919 
920     s_cctx = SSL_CONF_CTX_new();
921     s_cctx2 = SSL_CONF_CTX_new();
922     c_cctx = SSL_CONF_CTX_new();
923 
924     if (!s_cctx || !c_cctx || !s_cctx2) {
925         ERR_print_errors(bio_err);
926         goto end;
927     }
928 
929     SSL_CONF_CTX_set_flags(s_cctx,
930                            SSL_CONF_FLAG_CMDLINE | SSL_CONF_FLAG_SERVER |
931                            SSL_CONF_FLAG_CERTIFICATE |
932                            SSL_CONF_FLAG_REQUIRE_PRIVATE);
933     SSL_CONF_CTX_set_flags(s_cctx2,
934                            SSL_CONF_FLAG_CMDLINE | SSL_CONF_FLAG_SERVER |
935                            SSL_CONF_FLAG_CERTIFICATE |
936                            SSL_CONF_FLAG_REQUIRE_PRIVATE);
937     if (!SSL_CONF_CTX_set1_prefix(s_cctx, "-s_")) {
938         ERR_print_errors(bio_err);
939         goto end;
940     }
941     if (!SSL_CONF_CTX_set1_prefix(s_cctx2, "-s_")) {
942         ERR_print_errors(bio_err);
943         goto end;
944     }
945 
946     SSL_CONF_CTX_set_flags(c_cctx,
947                            SSL_CONF_FLAG_CMDLINE | SSL_CONF_FLAG_CLIENT |
948                            SSL_CONF_FLAG_CERTIFICATE |
949                            SSL_CONF_FLAG_REQUIRE_PRIVATE);
950     if (!SSL_CONF_CTX_set1_prefix(c_cctx, "-c_")) {
951         ERR_print_errors(bio_err);
952         goto end;
953     }
954 
955     argc--;
956     argv++;
957 
958     while (argc >= 1) {
959         if (strcmp(*argv, "-F") == 0) {
960             fprintf(stderr,
961                     "not compiled with FIPS support, so exiting without running.\n");
962             EXIT(0);
963         } else if (strcmp(*argv, "-server_auth") == 0)
964             server_auth = 1;
965         else if (strcmp(*argv, "-client_auth") == 0)
966             client_auth = 1;
967         else if (strcmp(*argv, "-v") == 0)
968             verbose = 1;
969         else if (strcmp(*argv, "-d") == 0)
970             debug = 1;
971         else if (strcmp(*argv, "-reuse") == 0)
972             reuse = 1;
973         else if (strcmp(*argv, "-no_dhe") == 0)
974 #ifdef OPENSSL_NO_DH
975             /* unused in this case */;
976 #else
977             no_dhe = 1;
978         else if (strcmp(*argv, "-dhe512") == 0)
979             dhe512 = 1;
980         else if (strcmp(*argv, "-dhe1024dsa") == 0)
981             dhe1024dsa = 1;
982 #endif
983         else if (strcmp(*argv, "-no_ecdhe") == 0)
984             /* obsolete */;
985         else if (strcmp(*argv, "-psk") == 0) {
986             if (--argc < 1)
987                 goto bad;
988             psk_key = *(++argv);
989 #ifndef OPENSSL_NO_PSK
990             if (strspn(psk_key, "abcdefABCDEF1234567890") != strlen(psk_key)) {
991                 BIO_printf(bio_err, "Not a hex number '%s'\n", *argv);
992                 goto bad;
993             }
994 #else
995             no_psk = 1;
996 #endif
997         }
998         else if (strcmp(*argv, "-tls1_2") == 0) {
999             tls1_2 = 1;
1000         } else if (strcmp(*argv, "-tls1") == 0) {
1001             tls1 = 1;
1002         } else if (strcmp(*argv, "-ssl3") == 0) {
1003             ssl3 = 1;
1004         } else if (strcmp(*argv, "-dtls1") == 0) {
1005             dtls1 = 1;
1006         } else if (strcmp(*argv, "-dtls12") == 0) {
1007             dtls12 = 1;
1008         } else if (strcmp(*argv, "-dtls") == 0) {
1009             dtls = 1;
1010         } else if (strncmp(*argv, "-num", 4) == 0) {
1011             if (--argc < 1)
1012                 goto bad;
1013             number = atoi(*(++argv));
1014             if (number == 0)
1015                 number = 1;
1016         } else if (strcmp(*argv, "-bytes") == 0) {
1017             if (--argc < 1)
1018                 goto bad;
1019             bytes = atol(*(++argv));
1020             if (bytes == 0L)
1021                 bytes = 1L;
1022             i = strlen(argv[0]);
1023             if (argv[0][i - 1] == 'k')
1024                 bytes *= 1024L;
1025             if (argv[0][i - 1] == 'm')
1026                 bytes *= 1024L * 1024L;
1027         } else if (strcmp(*argv, "-cipher") == 0) {
1028             if (--argc < 1)
1029                 goto bad;
1030             cipher = *(++argv);
1031         } else if (strcmp(*argv, "-ciphersuites") == 0) {
1032             if (--argc < 1)
1033                 goto bad;
1034             ciphersuites = *(++argv);
1035         } else if (strcmp(*argv, "-CApath") == 0) {
1036             if (--argc < 1)
1037                 goto bad;
1038             CApath = *(++argv);
1039         } else if (strcmp(*argv, "-CAfile") == 0) {
1040             if (--argc < 1)
1041                 goto bad;
1042             CAfile = *(++argv);
1043         } else if (strcmp(*argv, "-bio_pair") == 0) {
1044             bio_type = BIO_PAIR;
1045         }
1046 #ifndef OPENSSL_NO_SOCK
1047         else if (strcmp(*argv, "-ipv4") == 0) {
1048             bio_type = BIO_IPV4;
1049         } else if (strcmp(*argv, "-ipv6") == 0) {
1050             bio_type = BIO_IPV6;
1051         }
1052 #endif
1053         else if (strcmp(*argv, "-f") == 0) {
1054             force = 1;
1055         } else if (strcmp(*argv, "-time") == 0) {
1056             print_time = 1;
1057         }
1058 #ifndef OPENSSL_NO_CT
1059         else if (strcmp(*argv, "-noct") == 0) {
1060             ct_validation = 0;
1061         }
1062         else if (strcmp(*argv, "-ct") == 0) {
1063             ct_validation = 1;
1064         }
1065 #endif
1066 #ifndef OPENSSL_NO_COMP
1067         else if (strcmp(*argv, "-zlib") == 0) {
1068             comp = COMP_ZLIB;
1069         }
1070 #endif
1071         else if (strcmp(*argv, "-app_verify") == 0) {
1072             app_verify_arg.app_verify = 1;
1073         }
1074 #ifndef OPENSSL_NO_NEXTPROTONEG
1075           else if (strcmp(*argv, "-npn_client") == 0) {
1076             npn_client = 1;
1077         } else if (strcmp(*argv, "-npn_server") == 0) {
1078             npn_server = 1;
1079         } else if (strcmp(*argv, "-npn_server_reject") == 0) {
1080             npn_server_reject = 1;
1081         }
1082 #endif
1083         else if (strcmp(*argv, "-serverinfo_sct") == 0) {
1084             serverinfo_sct = 1;
1085         } else if (strcmp(*argv, "-serverinfo_tack") == 0) {
1086             serverinfo_tack = 1;
1087         } else if (strcmp(*argv, "-serverinfo_file") == 0) {
1088             if (--argc < 1)
1089                 goto bad;
1090             serverinfo_file = *(++argv);
1091         } else if (strcmp(*argv, "-custom_ext") == 0) {
1092             custom_ext = 1;
1093         } else if (strcmp(*argv, "-alpn_client") == 0) {
1094             if (--argc < 1)
1095                 goto bad;
1096             alpn_client = *(++argv);
1097         } else if (strcmp(*argv, "-alpn_server") == 0 ||
1098                    strcmp(*argv, "-alpn_server1") == 0) {
1099             if (--argc < 1)
1100                 goto bad;
1101             alpn_server = *(++argv);
1102         } else if (strcmp(*argv, "-alpn_server2") == 0) {
1103             if (--argc < 1)
1104                 goto bad;
1105             alpn_server2 = *(++argv);
1106         } else if (strcmp(*argv, "-alpn_expected") == 0) {
1107             if (--argc < 1)
1108                 goto bad;
1109             alpn_expected = *(++argv);
1110         } else if (strcmp(*argv, "-server_min_proto") == 0) {
1111             if (--argc < 1)
1112                 goto bad;
1113             server_min_proto = *(++argv);
1114         } else if (strcmp(*argv, "-server_max_proto") == 0) {
1115             if (--argc < 1)
1116                 goto bad;
1117             server_max_proto = *(++argv);
1118         } else if (strcmp(*argv, "-client_min_proto") == 0) {
1119             if (--argc < 1)
1120                 goto bad;
1121             client_min_proto = *(++argv);
1122         } else if (strcmp(*argv, "-client_max_proto") == 0) {
1123             if (--argc < 1)
1124                 goto bad;
1125             client_max_proto = *(++argv);
1126         } else if (strcmp(*argv, "-should_negotiate") == 0) {
1127             if (--argc < 1)
1128                 goto bad;
1129             should_negotiate = *(++argv);
1130         } else if (strcmp(*argv, "-sn_client") == 0) {
1131             if (--argc < 1)
1132                 goto bad;
1133             sn_client = *(++argv);
1134         } else if (strcmp(*argv, "-sn_server1") == 0) {
1135             if (--argc < 1)
1136                 goto bad;
1137             sn_server1 = *(++argv);
1138         } else if (strcmp(*argv, "-sn_server2") == 0) {
1139             if (--argc < 1)
1140                 goto bad;
1141             sn_server2 = *(++argv);
1142         } else if (strcmp(*argv, "-sn_expect1") == 0) {
1143             sn_expect = 1;
1144         } else if (strcmp(*argv, "-sn_expect2") == 0) {
1145             sn_expect = 2;
1146         } else if (strcmp(*argv, "-server_sess_out") == 0) {
1147             if (--argc < 1)
1148                 goto bad;
1149             server_sess_out = *(++argv);
1150         } else if (strcmp(*argv, "-server_sess_in") == 0) {
1151             if (--argc < 1)
1152                 goto bad;
1153             server_sess_in = *(++argv);
1154         } else if (strcmp(*argv, "-client_sess_out") == 0) {
1155             if (--argc < 1)
1156                 goto bad;
1157             client_sess_out = *(++argv);
1158         } else if (strcmp(*argv, "-client_sess_in") == 0) {
1159             if (--argc < 1)
1160                 goto bad;
1161             client_sess_in = *(++argv);
1162         } else if (strcmp(*argv, "-should_reuse") == 0) {
1163             if (--argc < 1)
1164                 goto bad;
1165             should_reuse = !!atoi(*(++argv));
1166         } else if (strcmp(*argv, "-no_ticket") == 0) {
1167             no_ticket = 1;
1168         } else if (strcmp(*argv, "-provider") == 0) {
1169             if (--argc < 1)
1170                 goto bad;
1171             provider = *(++argv);
1172         } else if (strcmp(*argv, "-config") == 0) {
1173             if (--argc < 1)
1174                 goto bad;
1175             config = *(++argv);
1176         } else {
1177             int rv;
1178             arg = argv[0];
1179             argn = argv[1];
1180             /* Try to process command using SSL_CONF */
1181             rv = SSL_CONF_cmd_argv(c_cctx, &argc, &argv);
1182             /* If not processed try server */
1183             if (rv == 0)
1184                 rv = SSL_CONF_cmd_argv(s_cctx, &argc, &argv);
1185             /* Recognised: store it for later use */
1186             if (rv > 0) {
1187                 if (rv == 1)
1188                     argn = NULL;
1189                 if (!conf_args) {
1190                     conf_args = sk_OPENSSL_STRING_new_null();
1191                     if (!conf_args)
1192                         goto end;
1193                 }
1194                 if (!sk_OPENSSL_STRING_push(conf_args, arg))
1195                     goto end;
1196                 if (!sk_OPENSSL_STRING_push(conf_args, argn))
1197                     goto end;
1198                 continue;
1199             }
1200             if (rv == -3)
1201                 BIO_printf(bio_err, "Missing argument for %s\n", arg);
1202             else if (rv < 0)
1203                 BIO_printf(bio_err, "Error with command %s\n", arg);
1204             else if (rv == 0)
1205                 BIO_printf(bio_err, "unknown option %s\n", arg);
1206             badop = 1;
1207             break;
1208         }
1209         argc--;
1210         argv++;
1211     }
1212     if (badop) {
1213  bad:
1214         sv_usage();
1215         goto end;
1216     }
1217 
1218     if (ssl3 + tls1 + tls1_2 + dtls + dtls1 + dtls12 > 1) {
1219         fprintf(stderr, "At most one of -ssl3, -tls1, -tls1_2, -dtls, -dtls1 or -dtls12 should "
1220                 "be requested.\n");
1221         EXIT(1);
1222     }
1223 
1224 #ifdef OPENSSL_NO_SSL3
1225     if (ssl3)
1226         no_protocol = 1;
1227     else
1228 #endif
1229 #ifdef OPENSSL_NO_TLS1
1230     if (tls1)
1231         no_protocol = 1;
1232     else
1233 #endif
1234 #ifdef OPENSSL_NO_TLS1_2
1235     if (tls1_2)
1236         no_protocol = 1;
1237     else
1238 #endif
1239 #if defined(OPENSSL_NO_DTLS) || defined(OPENSSL_NO_DTLS1)
1240     if (dtls1)
1241         no_protocol = 1;
1242     else
1243 #endif
1244 #if defined(OPENSSL_NO_DTLS) || defined(OPENSSL_NO_DTLS1_2)
1245     if (dtls12)
1246         no_protocol = 1;
1247     else
1248 #endif
1249         no_protocol = 0;
1250 
1251     /*
1252      * Testing was requested for a compiled-out protocol (e.g. SSLv3).
1253      * Ideally, we would error out, but the generic test wrapper can't know
1254      * when to expect failure. So we do nothing and return success.
1255      */
1256     if (no_protocol) {
1257         fprintf(stderr, "Testing was requested for a disabled protocol. "
1258                 "Skipping tests.\n");
1259         ret = EXIT_SUCCESS;
1260         goto end;
1261     }
1262 
1263     if (!ssl3 && !tls1 && !tls1_2 && !dtls && !dtls1 && !dtls12 && number > 1
1264             && !reuse && !force) {
1265         fprintf(stderr, "This case cannot work.  Use -f to perform "
1266                 "the test anyway (and\n-d to see what happens), "
1267                 "or add one of -ssl3, -tls1, -tls1_2, -dtls, -dtls1, -dtls12, -reuse\n"
1268                 "to avoid protocol mismatch.\n");
1269         EXIT(1);
1270     }
1271 
1272     if (print_time) {
1273         if (bio_type != BIO_PAIR) {
1274             fprintf(stderr, "Using BIO pair (-bio_pair)\n");
1275             bio_type = BIO_PAIR;
1276         }
1277         if (number < 50 && !force)
1278             fprintf(stderr,
1279                     "Warning: For accurate timings, use more connections (e.g. -num 1000)\n");
1280     }
1281 
1282 #ifndef OPENSSL_NO_COMP
1283     if (comp == COMP_ZLIB)
1284         cm = COMP_zlib();
1285     if (cm != NULL) {
1286         if (COMP_get_type(cm) != NID_undef) {
1287             if (SSL_COMP_add_compression_method(comp, cm) != 0) {
1288                 fprintf(stderr, "Failed to add compression method\n");
1289                 ERR_print_errors_fp(stderr);
1290             }
1291         } else {
1292             fprintf(stderr,
1293                     "Warning: %s compression not supported\n",
1294                     comp == COMP_ZLIB ? "zlib" : "unknown");
1295             ERR_print_errors_fp(stderr);
1296         }
1297     }
1298     ssl_comp_methods = SSL_COMP_get_compression_methods();
1299     n = sk_SSL_COMP_num(ssl_comp_methods);
1300     if (n) {
1301         int j;
1302         printf("Available compression methods:");
1303         for (j = 0; j < n; j++) {
1304             SSL_COMP *c = sk_SSL_COMP_value(ssl_comp_methods, j);
1305             printf("  %s:%d", SSL_COMP_get0_name(c), SSL_COMP_get_id(c));
1306         }
1307         printf("\n");
1308     }
1309 #endif
1310 
1311 #ifndef OPENSSL_NO_TLS
1312     meth = TLS_method();
1313     if (ssl3) {
1314         min_version = SSL3_VERSION;
1315         max_version = SSL3_VERSION;
1316     } else if (tls1) {
1317         min_version = TLS1_VERSION;
1318         max_version = TLS1_VERSION;
1319     } else if (tls1_2) {
1320         min_version = TLS1_2_VERSION;
1321         max_version = TLS1_2_VERSION;
1322     } else {
1323         min_version = 0;
1324 # if defined(OPENSSL_NO_EC) && defined(OPENSSL_NO_DH)
1325         /* We only have ec and dh based built-in groups for TLSv1.3 */
1326         max_version = TLS1_2_VERSION;
1327 # else
1328         max_version = 0;
1329 # endif
1330     }
1331 #endif
1332 #ifndef OPENSSL_NO_DTLS
1333     if (dtls || dtls1 || dtls12) {
1334         meth = DTLS_method();
1335         if (dtls1) {
1336             min_version = DTLS1_VERSION;
1337             max_version = DTLS1_VERSION;
1338         } else if (dtls12) {
1339             min_version = DTLS1_2_VERSION;
1340             max_version = DTLS1_2_VERSION;
1341         } else {
1342             min_version = 0;
1343             max_version = 0;
1344         }
1345     }
1346 #endif
1347 
1348     if (provider != NULL
1349             && !test_get_libctx(&libctx, &defctxnull, config, &thisprov, provider))
1350         goto end;
1351 
1352     c_ctx = SSL_CTX_new_ex(libctx, NULL, meth);
1353     s_ctx = SSL_CTX_new_ex(libctx, NULL, meth);
1354     s_ctx2 = SSL_CTX_new_ex(libctx, NULL, meth); /* no SSL_CTX_dup! */
1355     if ((c_ctx == NULL) || (s_ctx == NULL) || (s_ctx2 == NULL)) {
1356         ERR_print_errors(bio_err);
1357         goto end;
1358     }
1359     /*
1360      * Since we will use low security ciphersuites and keys for testing set
1361      * security level to zero by default. Tests can override this by adding
1362      * "@SECLEVEL=n" to the cipher string.
1363      */
1364     SSL_CTX_set_security_level(c_ctx, 0);
1365     SSL_CTX_set_security_level(s_ctx, 0);
1366     SSL_CTX_set_security_level(s_ctx2, 0);
1367 
1368     if (no_ticket) {
1369         SSL_CTX_set_options(c_ctx, SSL_OP_NO_TICKET);
1370         SSL_CTX_set_options(s_ctx, SSL_OP_NO_TICKET);
1371     }
1372 
1373     if (SSL_CTX_set_min_proto_version(c_ctx, min_version) == 0)
1374         goto end;
1375     if (SSL_CTX_set_max_proto_version(c_ctx, max_version) == 0)
1376         goto end;
1377     if (SSL_CTX_set_min_proto_version(s_ctx, min_version) == 0)
1378         goto end;
1379     if (SSL_CTX_set_max_proto_version(s_ctx, max_version) == 0)
1380         goto end;
1381 
1382     if (cipher != NULL) {
1383         if (strcmp(cipher, "") == 0) {
1384             if (!SSL_CTX_set_cipher_list(c_ctx, cipher)) {
1385                 if (ERR_GET_REASON(ERR_peek_error()) == SSL_R_NO_CIPHER_MATCH) {
1386                     ERR_clear_error();
1387                 } else {
1388                     ERR_print_errors(bio_err);
1389                     goto end;
1390                 }
1391             } else {
1392                 /* Should have failed when clearing all TLSv1.2 ciphers. */
1393                 fprintf(stderr, "CLEARING ALL TLSv1.2 CIPHERS SHOULD FAIL\n");
1394                 goto end;
1395             }
1396 
1397             if (!SSL_CTX_set_cipher_list(s_ctx, cipher)) {
1398                 if (ERR_GET_REASON(ERR_peek_error()) == SSL_R_NO_CIPHER_MATCH) {
1399                     ERR_clear_error();
1400                 } else {
1401                     ERR_print_errors(bio_err);
1402                     goto end;
1403                 }
1404             } else {
1405                 /* Should have failed when clearing all TLSv1.2 ciphers. */
1406                 fprintf(stderr, "CLEARING ALL TLSv1.2 CIPHERS SHOULD FAIL\n");
1407                 goto end;
1408             }
1409 
1410             if (!SSL_CTX_set_cipher_list(s_ctx2, cipher)) {
1411                 if (ERR_GET_REASON(ERR_peek_error()) == SSL_R_NO_CIPHER_MATCH) {
1412                     ERR_clear_error();
1413                 } else {
1414                     ERR_print_errors(bio_err);
1415                     goto end;
1416                 }
1417             } else {
1418                 /* Should have failed when clearing all TLSv1.2 ciphers. */
1419                 fprintf(stderr, "CLEARING ALL TLSv1.2 CIPHERS SHOULD FAIL\n");
1420                 goto end;
1421             }
1422         } else {
1423             if (!SSL_CTX_set_cipher_list(c_ctx, cipher)
1424                     || !SSL_CTX_set_cipher_list(s_ctx, cipher)
1425                     || !SSL_CTX_set_cipher_list(s_ctx2, cipher)) {
1426                 ERR_print_errors(bio_err);
1427                 goto end;
1428             }
1429         }
1430     }
1431     if (ciphersuites != NULL) {
1432         if (!SSL_CTX_set_ciphersuites(c_ctx, ciphersuites)
1433             || !SSL_CTX_set_ciphersuites(s_ctx, ciphersuites)
1434             || !SSL_CTX_set_ciphersuites(s_ctx2, ciphersuites)) {
1435             ERR_print_errors(bio_err);
1436             goto end;
1437         }
1438     }
1439 
1440 #ifndef OPENSSL_NO_CT
1441     if (ct_validation &&
1442         !SSL_CTX_enable_ct(c_ctx, SSL_CT_VALIDATION_STRICT)) {
1443         ERR_print_errors(bio_err);
1444         goto end;
1445     }
1446 #endif
1447 
1448     /* Process SSL_CONF arguments */
1449     SSL_CONF_CTX_set_ssl_ctx(c_cctx, c_ctx);
1450     SSL_CONF_CTX_set_ssl_ctx(s_cctx, s_ctx);
1451     SSL_CONF_CTX_set_ssl_ctx(s_cctx2, s_ctx2);
1452 
1453     for (i = 0; i < sk_OPENSSL_STRING_num(conf_args); i += 2) {
1454         int rv;
1455         arg = sk_OPENSSL_STRING_value(conf_args, i);
1456         argn = sk_OPENSSL_STRING_value(conf_args, i + 1);
1457         rv = SSL_CONF_cmd(c_cctx, arg, argn);
1458         /* If not recognised use server context */
1459         if (rv == -2) {
1460             rv = SSL_CONF_cmd(s_cctx2, arg, argn);
1461             if (rv > 0)
1462                 rv = SSL_CONF_cmd(s_cctx, arg, argn);
1463         }
1464         if (rv <= 0) {
1465             BIO_printf(bio_err, "Error processing %s %s\n",
1466                        arg, argn ? argn : "");
1467             ERR_print_errors(bio_err);
1468             goto end;
1469         }
1470     }
1471 
1472     if (!SSL_CONF_CTX_finish(s_cctx) || !SSL_CONF_CTX_finish(c_cctx) || !SSL_CONF_CTX_finish(s_cctx2)) {
1473         BIO_puts(bio_err, "Error finishing context\n");
1474         ERR_print_errors(bio_err);
1475         goto end;
1476     }
1477 #ifndef OPENSSL_NO_DH
1478     if (!no_dhe) {
1479         if (dhe1024dsa)
1480             dhpkey = get_dh1024dsa(libctx);
1481         else if (dhe512)
1482             dhpkey = get_dh512(libctx);
1483         else
1484             dhpkey = get_dh2048(libctx);
1485 
1486         if (dhpkey == NULL || !EVP_PKEY_up_ref(dhpkey)) {
1487             EVP_PKEY_free(dhpkey);
1488             BIO_puts(bio_err, "Error getting DH parameters\n");
1489             ERR_print_errors(bio_err);
1490             goto end;
1491         }
1492         SSL_CTX_set0_tmp_dh_pkey(s_ctx, dhpkey);
1493         SSL_CTX_set0_tmp_dh_pkey(s_ctx2, dhpkey);
1494     }
1495 #endif
1496 
1497     if (!(SSL_CTX_load_verify_file(s_ctx, CAfile)
1498           || SSL_CTX_load_verify_dir(s_ctx, CApath))
1499         || !SSL_CTX_set_default_verify_paths(s_ctx)
1500         || !(SSL_CTX_load_verify_file(s_ctx2, CAfile)
1501              || SSL_CTX_load_verify_dir(s_ctx2, CApath))
1502         || !SSL_CTX_set_default_verify_paths(s_ctx2)
1503         || !(SSL_CTX_load_verify_file(c_ctx, CAfile)
1504              || SSL_CTX_load_verify_dir(c_ctx, CApath))
1505         || !SSL_CTX_set_default_verify_paths(c_ctx)) {
1506         ERR_print_errors(bio_err);
1507     }
1508 
1509 #ifndef OPENSSL_NO_CT
1510     if (!SSL_CTX_set_default_ctlog_list_file(s_ctx) ||
1511         !SSL_CTX_set_default_ctlog_list_file(s_ctx2) ||
1512         !SSL_CTX_set_default_ctlog_list_file(c_ctx)) {
1513         ERR_print_errors(bio_err);
1514     }
1515 #endif
1516 
1517     if (client_auth) {
1518         printf("client authentication\n");
1519         SSL_CTX_set_verify(s_ctx,
1520                            SSL_VERIFY_PEER | SSL_VERIFY_FAIL_IF_NO_PEER_CERT,
1521                            verify_callback);
1522         SSL_CTX_set_verify(s_ctx2,
1523                            SSL_VERIFY_PEER | SSL_VERIFY_FAIL_IF_NO_PEER_CERT,
1524                            verify_callback);
1525         SSL_CTX_set_cert_verify_callback(s_ctx, app_verify_callback,
1526                                          &app_verify_arg);
1527         SSL_CTX_set_cert_verify_callback(s_ctx2, app_verify_callback,
1528                                          &app_verify_arg);
1529     }
1530     if (server_auth) {
1531         printf("server authentication\n");
1532         SSL_CTX_set_verify(c_ctx, SSL_VERIFY_PEER, verify_callback);
1533         SSL_CTX_set_cert_verify_callback(c_ctx, app_verify_callback,
1534                                          &app_verify_arg);
1535     }
1536 
1537     {
1538         int session_id_context = 0;
1539         if (!SSL_CTX_set_session_id_context(s_ctx, (void *)&session_id_context,
1540                                             sizeof(session_id_context)) ||
1541             !SSL_CTX_set_session_id_context(s_ctx2, (void *)&session_id_context,
1542                                             sizeof(session_id_context))) {
1543             ERR_print_errors(bio_err);
1544             goto end;
1545         }
1546     }
1547 
1548     /* Use PSK only if PSK key is given */
1549     if (psk_key != NULL) {
1550         /*
1551          * no_psk is used to avoid putting psk command to openssl tool
1552          */
1553         if (no_psk) {
1554             /*
1555              * if PSK is not compiled in and psk key is given, do nothing and
1556              * exit successfully
1557              */
1558             ret = EXIT_SUCCESS;
1559             goto end;
1560         }
1561 #ifndef OPENSSL_NO_PSK
1562         SSL_CTX_set_psk_client_callback(c_ctx, psk_client_callback);
1563         SSL_CTX_set_psk_server_callback(s_ctx, psk_server_callback);
1564         SSL_CTX_set_psk_server_callback(s_ctx2, psk_server_callback);
1565         if (debug)
1566             BIO_printf(bio_err, "setting PSK identity hint to s_ctx\n");
1567         if (!SSL_CTX_use_psk_identity_hint(s_ctx, "ctx server identity_hint") ||
1568             !SSL_CTX_use_psk_identity_hint(s_ctx2, "ctx server identity_hint")) {
1569             BIO_printf(bio_err, "error setting PSK identity hint to s_ctx\n");
1570             ERR_print_errors(bio_err);
1571             goto end;
1572         }
1573 #endif
1574     }
1575 
1576 #ifndef OPENSSL_NO_NEXTPROTONEG
1577     if (npn_client) {
1578         SSL_CTX_set_next_proto_select_cb(c_ctx, cb_client_npn, NULL);
1579     }
1580     if (npn_server) {
1581         if (npn_server_reject) {
1582             BIO_printf(bio_err,
1583                        "Can't have both -npn_server and -npn_server_reject\n");
1584             goto end;
1585         }
1586         SSL_CTX_set_npn_advertised_cb(s_ctx, cb_server_npn, NULL);
1587         SSL_CTX_set_npn_advertised_cb(s_ctx2, cb_server_npn, NULL);
1588     }
1589     if (npn_server_reject) {
1590         SSL_CTX_set_npn_advertised_cb(s_ctx, cb_server_rejects_npn, NULL);
1591         SSL_CTX_set_npn_advertised_cb(s_ctx2, cb_server_rejects_npn, NULL);
1592     }
1593 #endif
1594 
1595     if (serverinfo_sct) {
1596         if (!SSL_CTX_add_client_custom_ext(c_ctx,
1597                 TLSEXT_TYPE_signed_certificate_timestamp,
1598                 NULL, NULL, NULL,
1599                 serverinfo_cli_parse_cb, NULL)) {
1600             BIO_printf(bio_err, "Error adding SCT extension\n");
1601             goto end;
1602         }
1603     }
1604     if (serverinfo_tack) {
1605         if (!SSL_CTX_add_client_custom_ext(c_ctx, TACK_EXT_TYPE,
1606                                       NULL, NULL, NULL,
1607                                       serverinfo_cli_parse_cb, NULL)) {
1608             BIO_printf(bio_err, "Error adding TACK extension\n");
1609             goto end;
1610         }
1611     }
1612     if (serverinfo_file)
1613         if (!SSL_CTX_use_serverinfo_file(s_ctx, serverinfo_file) ||
1614             !SSL_CTX_use_serverinfo_file(s_ctx2, serverinfo_file)) {
1615             BIO_printf(bio_err, "missing serverinfo file\n");
1616             goto end;
1617         }
1618 
1619     if (custom_ext) {
1620         if (!SSL_CTX_add_client_custom_ext(c_ctx, CUSTOM_EXT_TYPE_0,
1621                                       custom_ext_0_cli_add_cb,
1622                                       NULL, NULL,
1623                                       custom_ext_0_cli_parse_cb, NULL)
1624             || !SSL_CTX_add_client_custom_ext(c_ctx, CUSTOM_EXT_TYPE_1,
1625                                       custom_ext_1_cli_add_cb,
1626                                       NULL, NULL,
1627                                       custom_ext_1_cli_parse_cb, NULL)
1628             || !SSL_CTX_add_client_custom_ext(c_ctx, CUSTOM_EXT_TYPE_2,
1629                                       custom_ext_2_cli_add_cb,
1630                                       NULL, NULL,
1631                                       custom_ext_2_cli_parse_cb, NULL)
1632             || !SSL_CTX_add_client_custom_ext(c_ctx, CUSTOM_EXT_TYPE_3,
1633                                       custom_ext_3_cli_add_cb,
1634                                       NULL, NULL,
1635                                       custom_ext_3_cli_parse_cb, NULL)
1636             || !SSL_CTX_add_server_custom_ext(s_ctx, CUSTOM_EXT_TYPE_0,
1637                                       custom_ext_0_srv_add_cb,
1638                                       NULL, NULL,
1639                                       custom_ext_0_srv_parse_cb, NULL)
1640             || !SSL_CTX_add_server_custom_ext(s_ctx2, CUSTOM_EXT_TYPE_0,
1641                                       custom_ext_0_srv_add_cb,
1642                                       NULL, NULL,
1643                                       custom_ext_0_srv_parse_cb, NULL)
1644             || !SSL_CTX_add_server_custom_ext(s_ctx, CUSTOM_EXT_TYPE_1,
1645                                       custom_ext_1_srv_add_cb,
1646                                       NULL, NULL,
1647                                       custom_ext_1_srv_parse_cb, NULL)
1648             || !SSL_CTX_add_server_custom_ext(s_ctx2, CUSTOM_EXT_TYPE_1,
1649                                       custom_ext_1_srv_add_cb,
1650                                       NULL, NULL,
1651                                       custom_ext_1_srv_parse_cb, NULL)
1652             || !SSL_CTX_add_server_custom_ext(s_ctx, CUSTOM_EXT_TYPE_2,
1653                                       custom_ext_2_srv_add_cb,
1654                                       NULL, NULL,
1655                                       custom_ext_2_srv_parse_cb, NULL)
1656             || !SSL_CTX_add_server_custom_ext(s_ctx2, CUSTOM_EXT_TYPE_2,
1657                                       custom_ext_2_srv_add_cb,
1658                                       NULL, NULL,
1659                                       custom_ext_2_srv_parse_cb, NULL)
1660             || !SSL_CTX_add_server_custom_ext(s_ctx, CUSTOM_EXT_TYPE_3,
1661                                       custom_ext_3_srv_add_cb,
1662                                       NULL, NULL,
1663                                       custom_ext_3_srv_parse_cb, NULL)
1664             || !SSL_CTX_add_server_custom_ext(s_ctx2, CUSTOM_EXT_TYPE_3,
1665                                       custom_ext_3_srv_add_cb,
1666                                       NULL, NULL,
1667                                       custom_ext_3_srv_parse_cb, NULL)) {
1668             BIO_printf(bio_err, "Error setting custom extensions\n");
1669             goto end;
1670         }
1671     }
1672 
1673     if (alpn_server)
1674         SSL_CTX_set_alpn_select_cb(s_ctx, cb_server_alpn, alpn_server);
1675     if (alpn_server2)
1676         SSL_CTX_set_alpn_select_cb(s_ctx2, cb_server_alpn, alpn_server2);
1677 
1678     if (alpn_client) {
1679         size_t alpn_len;
1680         unsigned char *alpn = next_protos_parse(&alpn_len, alpn_client);
1681 
1682         if (alpn == NULL) {
1683             BIO_printf(bio_err, "Error parsing -alpn_client argument\n");
1684             goto end;
1685         }
1686         /* Returns 0 on success!! */
1687         if (SSL_CTX_set_alpn_protos(c_ctx, alpn, alpn_len)) {
1688             BIO_printf(bio_err, "Error setting ALPN\n");
1689             OPENSSL_free(alpn);
1690             goto end;
1691         }
1692         OPENSSL_free(alpn);
1693     }
1694 
1695     if (server_sess_in != NULL) {
1696         server_sess = read_session(server_sess_in);
1697         if (server_sess == NULL)
1698             goto end;
1699     }
1700     if (client_sess_in != NULL) {
1701         client_sess = read_session(client_sess_in);
1702         if (client_sess == NULL)
1703             goto end;
1704     }
1705 
1706     if (server_sess_out != NULL || server_sess_in != NULL) {
1707         char *keys;
1708         long size;
1709 
1710         /* Use a fixed key so that we can decrypt the ticket. */
1711         size = SSL_CTX_set_tlsext_ticket_keys(s_ctx, NULL, 0);
1712         keys = OPENSSL_zalloc(size);
1713         SSL_CTX_set_tlsext_ticket_keys(s_ctx, keys, size);
1714         OPENSSL_free(keys);
1715     }
1716 
1717     if (sn_server1 != NULL || sn_server2 != NULL)
1718         SSL_CTX_set_tlsext_servername_callback(s_ctx, servername_cb);
1719 
1720     c_ssl = SSL_new(c_ctx);
1721     s_ssl = SSL_new(s_ctx);
1722 
1723     if (sn_client)
1724         SSL_set_tlsext_host_name(c_ssl, sn_client);
1725 
1726     if (!set_protocol_version(server_min_proto, s_ssl, SSL_CTRL_SET_MIN_PROTO_VERSION))
1727         goto end;
1728     if (!set_protocol_version(server_max_proto, s_ssl, SSL_CTRL_SET_MAX_PROTO_VERSION))
1729         goto end;
1730     if (!set_protocol_version(client_min_proto, c_ssl, SSL_CTRL_SET_MIN_PROTO_VERSION))
1731         goto end;
1732     if (!set_protocol_version(client_max_proto, c_ssl, SSL_CTRL_SET_MAX_PROTO_VERSION))
1733         goto end;
1734 
1735     if (server_sess) {
1736         if (SSL_CTX_add_session(s_ctx, server_sess) == 0) {
1737             BIO_printf(bio_err, "Can't add server session\n");
1738             ERR_print_errors(bio_err);
1739             goto end;
1740         }
1741     }
1742 
1743     BIO_printf(bio_stdout, "Doing handshakes=%d bytes=%ld\n", number, bytes);
1744     for (i = 0; i < number; i++) {
1745         if (!reuse) {
1746             if (!SSL_set_session(c_ssl, NULL)) {
1747                 BIO_printf(bio_err, "Failed to set session\n");
1748                 goto end;
1749             }
1750         }
1751         if (client_sess_in != NULL) {
1752             if (SSL_set_session(c_ssl, client_sess) == 0) {
1753                 BIO_printf(bio_err, "Can't set client session\n");
1754                 ERR_print_errors(bio_err);
1755                 goto end;
1756             }
1757         }
1758         switch (bio_type) {
1759         case BIO_MEM:
1760             ret = doit(s_ssl, c_ssl, bytes);
1761             break;
1762         case BIO_PAIR:
1763             ret = doit_biopair(s_ssl, c_ssl, bytes, &s_time, &c_time);
1764             break;
1765 #ifndef OPENSSL_NO_SOCK
1766         case BIO_IPV4:
1767             ret = doit_localhost(s_ssl, c_ssl, BIO_FAMILY_IPV4,
1768                                  bytes, &s_time, &c_time);
1769             break;
1770         case BIO_IPV6:
1771             ret = doit_localhost(s_ssl, c_ssl, BIO_FAMILY_IPV6,
1772                                  bytes, &s_time, &c_time);
1773             break;
1774 #else
1775         case BIO_IPV4:
1776         case BIO_IPV6:
1777             ret = EXIT_FAILURE;
1778             goto err;
1779 #endif
1780         }
1781         if (ret != EXIT_SUCCESS)  break;
1782     }
1783 
1784     if (should_negotiate && ret == EXIT_SUCCESS &&
1785         strcmp(should_negotiate, "fail-server") != 0 &&
1786         strcmp(should_negotiate, "fail-client") != 0) {
1787         int version = protocol_from_string(should_negotiate);
1788         if (version < 0) {
1789             BIO_printf(bio_err, "Error parsing: %s\n", should_negotiate);
1790             ret = EXIT_FAILURE;
1791             goto err;
1792         }
1793         if (SSL_version(c_ssl) != version) {
1794             BIO_printf(bio_err, "Unexpected version negotiated. "
1795                 "Expected: %s, got %s\n", should_negotiate, SSL_get_version(c_ssl));
1796             ret = EXIT_FAILURE;
1797             goto err;
1798         }
1799     }
1800 
1801     if (should_reuse != -1) {
1802         if (SSL_session_reused(s_ssl) != should_reuse ||
1803             SSL_session_reused(c_ssl) != should_reuse) {
1804             BIO_printf(bio_err, "Unexpected session reuse state. "
1805                 "Expected: %d, server: %d, client: %d\n", should_reuse,
1806                 SSL_session_reused(s_ssl), SSL_session_reused(c_ssl));
1807             ret = EXIT_FAILURE;
1808             goto err;
1809         }
1810     }
1811 
1812     if (server_sess_out != NULL) {
1813         if (write_session(server_sess_out, SSL_get_session(s_ssl)) == 0) {
1814             ret = EXIT_FAILURE;
1815             goto err;
1816         }
1817     }
1818     if (client_sess_out != NULL) {
1819         if (write_session(client_sess_out, SSL_get_session(c_ssl)) == 0) {
1820             ret = EXIT_FAILURE;
1821             goto err;
1822         }
1823     }
1824 
1825     if (!verbose) {
1826         print_details(c_ssl, "");
1827     }
1828     if (print_time) {
1829 #ifdef CLOCKS_PER_SEC
1830         /*
1831          * "To determine the time in seconds, the value returned by the clock
1832          * function should be divided by the value of the macro
1833          * CLOCKS_PER_SEC." -- ISO/IEC 9899
1834          */
1835         BIO_printf(bio_stdout, "Approximate total server time: %6.2f s\n"
1836                    "Approximate total client time: %6.2f s\n",
1837                    (double)s_time / CLOCKS_PER_SEC,
1838                    (double)c_time / CLOCKS_PER_SEC);
1839 #else
1840         BIO_printf(bio_stdout,
1841                    "Approximate total server time: %6.2f units\n"
1842                    "Approximate total client time: %6.2f units\n",
1843                    (double)s_time, (double)c_time);
1844 #endif
1845     }
1846 
1847  err:
1848     SSL_free(s_ssl);
1849     SSL_free(c_ssl);
1850 
1851  end:
1852     SSL_CTX_free(s_ctx);
1853     SSL_CTX_free(s_ctx2);
1854     SSL_CTX_free(c_ctx);
1855     SSL_CONF_CTX_free(s_cctx);
1856     SSL_CONF_CTX_free(s_cctx2);
1857     SSL_CONF_CTX_free(c_cctx);
1858     sk_OPENSSL_STRING_free(conf_args);
1859 
1860     BIO_free(bio_stdout);
1861 
1862     SSL_SESSION_free(server_sess);
1863     SSL_SESSION_free(client_sess);
1864 
1865     OSSL_PROVIDER_unload(defctxnull);
1866     OSSL_PROVIDER_unload(thisprov);
1867     OSSL_LIB_CTX_free(libctx);
1868 
1869     BIO_free(bio_err);
1870     EXIT(ret);
1871 }
1872 
1873 #ifndef OPENSSL_NO_SOCK
doit_localhost(SSL * s_ssl,SSL * c_ssl,int family,long count,clock_t * s_time,clock_t * c_time)1874 int doit_localhost(SSL *s_ssl, SSL *c_ssl, int family, long count,
1875                    clock_t *s_time, clock_t *c_time)
1876 {
1877     long cw_num = count, cr_num = count, sw_num = count, sr_num = count;
1878     BIO *s_ssl_bio = NULL, *c_ssl_bio = NULL;
1879     BIO *acpt = NULL, *server = NULL, *client = NULL;
1880     char addr_str[40];
1881     int ret = EXIT_FAILURE;
1882     int err_in_client = 0;
1883     int err_in_server = 0;
1884 
1885     acpt = BIO_new_accept(family == BIO_FAMILY_IPV4 ? "127.0.0.1:0"
1886                                                     : "[::1]:0");
1887     if (acpt == NULL)
1888         goto err;
1889     BIO_set_accept_ip_family(acpt, family);
1890     BIO_set_bind_mode(acpt, BIO_SOCK_NONBLOCK | BIO_SOCK_REUSEADDR);
1891     if (BIO_do_accept(acpt) <= 0)
1892         goto err;
1893 
1894     BIO_snprintf(addr_str, sizeof(addr_str), ":%s", BIO_get_accept_port(acpt));
1895 
1896     client = BIO_new_connect(addr_str);
1897     BIO_set_conn_ip_family(client, family);
1898     if (!client)
1899         goto err;
1900 
1901     if (BIO_set_nbio(client, 1) <= 0)
1902         goto err;
1903     if (BIO_set_nbio(acpt, 1) <= 0)
1904         goto err;
1905 
1906     {
1907         int st_connect = 0, st_accept = 0;
1908 
1909         while(!st_connect || !st_accept) {
1910             if (!st_connect) {
1911                 if (BIO_do_connect(client) <= 0) {
1912                     if (!BIO_should_retry(client))
1913                         goto err;
1914                 } else {
1915                     st_connect = 1;
1916                 }
1917             }
1918             if (!st_accept) {
1919                 if (BIO_do_accept(acpt) <= 0) {
1920                     if (!BIO_should_retry(acpt))
1921                         goto err;
1922                 } else {
1923                     st_accept = 1;
1924                 }
1925             }
1926         }
1927     }
1928     /* We're not interested in accepting further connects */
1929     server = BIO_pop(acpt);
1930     BIO_free_all(acpt);
1931     acpt = NULL;
1932 
1933     s_ssl_bio = BIO_new(BIO_f_ssl());
1934     if (!s_ssl_bio)
1935         goto err;
1936 
1937     c_ssl_bio = BIO_new(BIO_f_ssl());
1938     if (!c_ssl_bio)
1939         goto err;
1940 
1941     SSL_set_connect_state(c_ssl);
1942     SSL_set_bio(c_ssl, client, client);
1943     (void)BIO_set_ssl(c_ssl_bio, c_ssl, BIO_NOCLOSE);
1944 
1945     SSL_set_accept_state(s_ssl);
1946     SSL_set_bio(s_ssl, server, server);
1947     (void)BIO_set_ssl(s_ssl_bio, s_ssl, BIO_NOCLOSE);
1948 
1949     do {
1950         /*-
1951          * c_ssl_bio:          SSL filter BIO
1952          *
1953          * client:             I/O for SSL library
1954          *
1955          *
1956          * server:             I/O for SSL library
1957          *
1958          * s_ssl_bio:          SSL filter BIO
1959          */
1960 
1961         /*
1962          * We have non-blocking behaviour throughout this test program, but
1963          * can be sure that there is *some* progress in each iteration; so we
1964          * don't have to worry about ..._SHOULD_READ or ..._SHOULD_WRITE --
1965          * we just try everything in each iteration
1966          */
1967 
1968         {
1969             /* CLIENT */
1970 
1971             char cbuf[1024 * 8];
1972             int i, r;
1973             clock_t c_clock = clock();
1974 
1975             memset(cbuf, 0, sizeof(cbuf));
1976 
1977             if (debug)
1978                 if (SSL_in_init(c_ssl))
1979                     printf("client waiting in SSL_connect - %s\n",
1980                            SSL_state_string_long(c_ssl));
1981 
1982             if (cw_num > 0) {
1983                 /* Write to server. */
1984 
1985                 if (cw_num > (long)sizeof(cbuf))
1986                     i = sizeof(cbuf);
1987                 else
1988                     i = (int)cw_num;
1989                 r = BIO_write(c_ssl_bio, cbuf, i);
1990                 if (r < 0) {
1991                     if (!BIO_should_retry(c_ssl_bio)) {
1992                         fprintf(stderr, "ERROR in CLIENT\n");
1993                         err_in_client = 1;
1994                         goto err;
1995                     }
1996                     /*
1997                      * BIO_should_retry(...) can just be ignored here. The
1998                      * library expects us to call BIO_write with the same
1999                      * arguments again, and that's what we will do in the
2000                      * next iteration.
2001                      */
2002                 } else if (r == 0) {
2003                     fprintf(stderr, "SSL CLIENT STARTUP FAILED\n");
2004                     goto err;
2005                 } else {
2006                     if (debug)
2007                         printf("client wrote %d\n", r);
2008                     cw_num -= r;
2009                 }
2010             }
2011 
2012             if (cr_num > 0) {
2013                 /* Read from server. */
2014 
2015                 r = BIO_read(c_ssl_bio, cbuf, sizeof(cbuf));
2016                 if (r < 0) {
2017                     if (!BIO_should_retry(c_ssl_bio)) {
2018                         fprintf(stderr, "ERROR in CLIENT\n");
2019                         err_in_client = 1;
2020                         goto err;
2021                     }
2022                     /*
2023                      * Again, "BIO_should_retry" can be ignored.
2024                      */
2025                 } else if (r == 0) {
2026                     fprintf(stderr, "SSL CLIENT STARTUP FAILED\n");
2027                     goto err;
2028                 } else {
2029                     if (debug)
2030                         printf("client read %d\n", r);
2031                     cr_num -= r;
2032                 }
2033             }
2034 
2035             /*
2036              * c_time and s_time increments will typically be very small
2037              * (depending on machine speed and clock tick intervals), but
2038              * sampling over a large number of connections should result in
2039              * fairly accurate figures.  We cannot guarantee a lot, however
2040              * -- if each connection lasts for exactly one clock tick, it
2041              * will be counted only for the client or only for the server or
2042              * even not at all.
2043              */
2044             *c_time += (clock() - c_clock);
2045         }
2046 
2047         {
2048             /* SERVER */
2049 
2050             char sbuf[1024 * 8];
2051             int i, r;
2052             clock_t s_clock = clock();
2053 
2054             memset(sbuf, 0, sizeof(sbuf));
2055 
2056             if (debug)
2057                 if (SSL_in_init(s_ssl))
2058                     printf("server waiting in SSL_accept - %s\n",
2059                            SSL_state_string_long(s_ssl));
2060 
2061             if (sw_num > 0) {
2062                 /* Write to client. */
2063 
2064                 if (sw_num > (long)sizeof(sbuf))
2065                     i = sizeof(sbuf);
2066                 else
2067                     i = (int)sw_num;
2068                 r = BIO_write(s_ssl_bio, sbuf, i);
2069                 if (r < 0) {
2070                     if (!BIO_should_retry(s_ssl_bio)) {
2071                         fprintf(stderr, "ERROR in SERVER\n");
2072                         err_in_server = 1;
2073                         goto err;
2074                     }
2075                     /* Ignore "BIO_should_retry". */
2076                 } else if (r == 0) {
2077                     fprintf(stderr, "SSL SERVER STARTUP FAILED\n");
2078                     goto err;
2079                 } else {
2080                     if (debug)
2081                         printf("server wrote %d\n", r);
2082                     sw_num -= r;
2083                 }
2084             }
2085 
2086             if (sr_num > 0) {
2087                 /* Read from client. */
2088 
2089                 r = BIO_read(s_ssl_bio, sbuf, sizeof(sbuf));
2090                 if (r < 0) {
2091                     if (!BIO_should_retry(s_ssl_bio)) {
2092                         fprintf(stderr, "ERROR in SERVER\n");
2093                         err_in_server = 1;
2094                         goto err;
2095                     }
2096                     /* blah, blah */
2097                 } else if (r == 0) {
2098                     fprintf(stderr, "SSL SERVER STARTUP FAILED\n");
2099                     goto err;
2100                 } else {
2101                     if (debug)
2102                         printf("server read %d\n", r);
2103                     sr_num -= r;
2104                 }
2105             }
2106 
2107             *s_time += (clock() - s_clock);
2108         }
2109     }
2110     while (cw_num > 0 || cr_num > 0 || sw_num > 0 || sr_num > 0);
2111 
2112     if (verbose)
2113         print_details(c_ssl, "DONE via TCP connect: ");
2114 # ifndef OPENSSL_NO_NEXTPROTONEG
2115     if (verify_npn(c_ssl, s_ssl) < 0)
2116         goto end;
2117 # endif
2118     if (verify_serverinfo() < 0) {
2119         fprintf(stderr, "Server info verify error\n");
2120         goto err;
2121     }
2122     if (verify_alpn(c_ssl, s_ssl) < 0
2123             || verify_servername(c_ssl, s_ssl) < 0)
2124         goto err;
2125 
2126     if (custom_ext_error) {
2127         fprintf(stderr, "Custom extension error\n");
2128         goto err;
2129     }
2130 
2131 # ifndef OPENSSL_NO_NEXTPROTONEG
2132  end:
2133 # endif
2134     ret = EXIT_SUCCESS;
2135 
2136  err:
2137     ERR_print_errors(bio_err);
2138 
2139     BIO_free_all(acpt);
2140     BIO_free(server);
2141     BIO_free(client);
2142     BIO_free(s_ssl_bio);
2143     BIO_free(c_ssl_bio);
2144 
2145     if (should_negotiate != NULL && strcmp(should_negotiate, "fail-client") == 0)
2146         ret = (err_in_client != 0) ? EXIT_SUCCESS : EXIT_FAILURE;
2147     else if (should_negotiate != NULL && strcmp(should_negotiate, "fail-server") == 0)
2148         ret = (err_in_server != 0) ? EXIT_SUCCESS : EXIT_FAILURE;
2149 
2150     return ret;
2151 }
2152 #endif
2153 
doit_biopair(SSL * s_ssl,SSL * c_ssl,long count,clock_t * s_time,clock_t * c_time)2154 int doit_biopair(SSL *s_ssl, SSL *c_ssl, long count,
2155                  clock_t *s_time, clock_t *c_time)
2156 {
2157     long cw_num = count, cr_num = count, sw_num = count, sr_num = count;
2158     BIO *s_ssl_bio = NULL, *c_ssl_bio = NULL;
2159     BIO *server = NULL, *server_io = NULL, *client = NULL, *client_io = NULL;
2160     int ret = EXIT_FAILURE;
2161     int err_in_client = 0;
2162     int err_in_server = 0;
2163 
2164     size_t bufsiz = 256;        /* small buffer for testing */
2165 
2166     if (!BIO_new_bio_pair(&server, bufsiz, &server_io, bufsiz))
2167         goto err;
2168     if (!BIO_new_bio_pair(&client, bufsiz, &client_io, bufsiz))
2169         goto err;
2170 
2171     s_ssl_bio = BIO_new(BIO_f_ssl());
2172     if (!s_ssl_bio)
2173         goto err;
2174 
2175     c_ssl_bio = BIO_new(BIO_f_ssl());
2176     if (!c_ssl_bio)
2177         goto err;
2178 
2179     SSL_set_connect_state(c_ssl);
2180     SSL_set_bio(c_ssl, client, client);
2181     (void)BIO_set_ssl(c_ssl_bio, c_ssl, BIO_NOCLOSE);
2182 
2183     SSL_set_accept_state(s_ssl);
2184     SSL_set_bio(s_ssl, server, server);
2185     (void)BIO_set_ssl(s_ssl_bio, s_ssl, BIO_NOCLOSE);
2186 
2187     do {
2188         /*-
2189          * c_ssl_bio:          SSL filter BIO
2190          *
2191          * client:             pseudo-I/O for SSL library
2192          *
2193          * client_io:          client's SSL communication; usually to be
2194          *                     relayed over some I/O facility, but in this
2195          *                     test program, we're the server, too:
2196          *
2197          * server_io:          server's SSL communication
2198          *
2199          * server:             pseudo-I/O for SSL library
2200          *
2201          * s_ssl_bio:          SSL filter BIO
2202          *
2203          * The client and the server each employ a "BIO pair":
2204          * client + client_io, server + server_io.
2205          * BIO pairs are symmetric.  A BIO pair behaves similar
2206          * to a non-blocking socketpair (but both endpoints must
2207          * be handled by the same thread).
2208          * [Here we could connect client and server to the ends
2209          * of a single BIO pair, but then this code would be less
2210          * suitable as an example for BIO pairs in general.]
2211          *
2212          * Useful functions for querying the state of BIO pair endpoints:
2213          *
2214          * BIO_ctrl_pending(bio)              number of bytes we can read now
2215          * BIO_ctrl_get_read_request(bio)     number of bytes needed to fulfill
2216          *                                      other side's read attempt
2217          * BIO_ctrl_get_write_guarantee(bio)   number of bytes we can write now
2218          *
2219          * ..._read_request is never more than ..._write_guarantee;
2220          * it depends on the application which one you should use.
2221          */
2222 
2223         /*
2224          * We have non-blocking behaviour throughout this test program, but
2225          * can be sure that there is *some* progress in each iteration; so we
2226          * don't have to worry about ..._SHOULD_READ or ..._SHOULD_WRITE --
2227          * we just try everything in each iteration
2228          */
2229 
2230         {
2231             /* CLIENT */
2232 
2233             char cbuf[1024 * 8];
2234             int i, r;
2235             clock_t c_clock = clock();
2236 
2237             memset(cbuf, 0, sizeof(cbuf));
2238 
2239             if (debug)
2240                 if (SSL_in_init(c_ssl))
2241                     printf("client waiting in SSL_connect - %s\n",
2242                            SSL_state_string_long(c_ssl));
2243 
2244             if (cw_num > 0) {
2245                 /* Write to server. */
2246 
2247                 if (cw_num > (long)sizeof(cbuf))
2248                     i = sizeof(cbuf);
2249                 else
2250                     i = (int)cw_num;
2251                 r = BIO_write(c_ssl_bio, cbuf, i);
2252                 if (r < 0) {
2253                     if (!BIO_should_retry(c_ssl_bio)) {
2254                         fprintf(stderr, "ERROR in CLIENT\n");
2255                         err_in_client = 1;
2256                         goto err;
2257                     }
2258                     /*
2259                      * BIO_should_retry(...) can just be ignored here. The
2260                      * library expects us to call BIO_write with the same
2261                      * arguments again, and that's what we will do in the
2262                      * next iteration.
2263                      */
2264                 } else if (r == 0) {
2265                     fprintf(stderr, "SSL CLIENT STARTUP FAILED\n");
2266                     goto err;
2267                 } else {
2268                     if (debug)
2269                         printf("client wrote %d\n", r);
2270                     cw_num -= r;
2271                 }
2272             }
2273 
2274             if (cr_num > 0) {
2275                 /* Read from server. */
2276 
2277                 r = BIO_read(c_ssl_bio, cbuf, sizeof(cbuf));
2278                 if (r < 0) {
2279                     if (!BIO_should_retry(c_ssl_bio)) {
2280                         fprintf(stderr, "ERROR in CLIENT\n");
2281                         err_in_client = 1;
2282                         goto err;
2283                     }
2284                     /*
2285                      * Again, "BIO_should_retry" can be ignored.
2286                      */
2287                 } else if (r == 0) {
2288                     fprintf(stderr, "SSL CLIENT STARTUP FAILED\n");
2289                     goto err;
2290                 } else {
2291                     if (debug)
2292                         printf("client read %d\n", r);
2293                     cr_num -= r;
2294                 }
2295             }
2296 
2297             /*
2298              * c_time and s_time increments will typically be very small
2299              * (depending on machine speed and clock tick intervals), but
2300              * sampling over a large number of connections should result in
2301              * fairly accurate figures.  We cannot guarantee a lot, however
2302              * -- if each connection lasts for exactly one clock tick, it
2303              * will be counted only for the client or only for the server or
2304              * even not at all.
2305              */
2306             *c_time += (clock() - c_clock);
2307         }
2308 
2309         {
2310             /* SERVER */
2311 
2312             char sbuf[1024 * 8];
2313             int i, r;
2314             clock_t s_clock = clock();
2315 
2316             memset(sbuf, 0, sizeof(sbuf));
2317 
2318             if (debug)
2319                 if (SSL_in_init(s_ssl))
2320                     printf("server waiting in SSL_accept - %s\n",
2321                            SSL_state_string_long(s_ssl));
2322 
2323             if (sw_num > 0) {
2324                 /* Write to client. */
2325 
2326                 if (sw_num > (long)sizeof(sbuf))
2327                     i = sizeof(sbuf);
2328                 else
2329                     i = (int)sw_num;
2330                 r = BIO_write(s_ssl_bio, sbuf, i);
2331                 if (r < 0) {
2332                     if (!BIO_should_retry(s_ssl_bio)) {
2333                         fprintf(stderr, "ERROR in SERVER\n");
2334                         err_in_server = 1;
2335                         goto err;
2336                     }
2337                     /* Ignore "BIO_should_retry". */
2338                 } else if (r == 0) {
2339                     fprintf(stderr, "SSL SERVER STARTUP FAILED\n");
2340                     goto err;
2341                 } else {
2342                     if (debug)
2343                         printf("server wrote %d\n", r);
2344                     sw_num -= r;
2345                 }
2346             }
2347 
2348             if (sr_num > 0) {
2349                 /* Read from client. */
2350 
2351                 r = BIO_read(s_ssl_bio, sbuf, sizeof(sbuf));
2352                 if (r < 0) {
2353                     if (!BIO_should_retry(s_ssl_bio)) {
2354                         fprintf(stderr, "ERROR in SERVER\n");
2355                         err_in_server = 1;
2356                         goto err;
2357                     }
2358                     /* blah, blah */
2359                 } else if (r == 0) {
2360                     fprintf(stderr, "SSL SERVER STARTUP FAILED\n");
2361                     goto err;
2362                 } else {
2363                     if (debug)
2364                         printf("server read %d\n", r);
2365                     sr_num -= r;
2366                 }
2367             }
2368 
2369             *s_time += (clock() - s_clock);
2370         }
2371 
2372         {
2373             /* "I/O" BETWEEN CLIENT AND SERVER. */
2374 
2375             size_t r1, r2;
2376             BIO *io1 = server_io, *io2 = client_io;
2377             /*
2378              * we use the non-copying interface for io1 and the standard
2379              * BIO_write/BIO_read interface for io2
2380              */
2381 
2382             static int prev_progress = 1;
2383             int progress = 0;
2384 
2385             /* io1 to io2 */
2386             do {
2387                 size_t num;
2388                 int r;
2389 
2390                 r1 = BIO_ctrl_pending(io1);
2391                 r2 = BIO_ctrl_get_write_guarantee(io2);
2392 
2393                 num = r1;
2394                 if (r2 < num)
2395                     num = r2;
2396                 if (num) {
2397                     char *dataptr;
2398 
2399                     if (INT_MAX < num) /* yeah, right */
2400                         num = INT_MAX;
2401 
2402                     r = BIO_nread(io1, &dataptr, (int)num);
2403                     assert(r > 0);
2404                     assert(r <= (int)num);
2405                     /*
2406                      * possibly r < num (non-contiguous data)
2407                      */
2408                     num = r;
2409                     r = BIO_write(io2, dataptr, (int)num);
2410                     if (r != (int)num) { /* can't happen */
2411                         fprintf(stderr, "ERROR: BIO_write could not write "
2412                                 "BIO_ctrl_get_write_guarantee() bytes");
2413                         goto err;
2414                     }
2415                     progress = 1;
2416 
2417                     if (debug)
2418                         printf((io1 == client_io) ?
2419                                "C->S relaying: %d bytes\n" :
2420                                "S->C relaying: %d bytes\n", (int)num);
2421                 }
2422             }
2423             while (r1 && r2);
2424 
2425             /* io2 to io1 */
2426             {
2427                 size_t num;
2428                 int r;
2429 
2430                 r1 = BIO_ctrl_pending(io2);
2431                 r2 = BIO_ctrl_get_read_request(io1);
2432                 /*
2433                  * here we could use ..._get_write_guarantee instead of
2434                  * ..._get_read_request, but by using the latter we test
2435                  * restartability of the SSL implementation more thoroughly
2436                  */
2437                 num = r1;
2438                 if (r2 < num)
2439                     num = r2;
2440                 if (num) {
2441                     char *dataptr;
2442 
2443                     if (INT_MAX < num)
2444                         num = INT_MAX;
2445 
2446                     if (num > 1)
2447                         --num;  /* test restartability even more thoroughly */
2448 
2449                     r = BIO_nwrite0(io1, &dataptr);
2450                     assert(r > 0);
2451                     if (r < (int)num)
2452                         num = r;
2453                     r = BIO_read(io2, dataptr, (int)num);
2454                     if (r != (int)num) { /* can't happen */
2455                         fprintf(stderr, "ERROR: BIO_read could not read "
2456                                 "BIO_ctrl_pending() bytes");
2457                         goto err;
2458                     }
2459                     progress = 1;
2460                     r = BIO_nwrite(io1, &dataptr, (int)num);
2461                     if (r != (int)num) { /* can't happen */
2462                         fprintf(stderr, "ERROR: BIO_nwrite() did not accept "
2463                                 "BIO_nwrite0() bytes");
2464                         goto err;
2465                     }
2466 
2467                     if (debug)
2468                         printf((io2 == client_io) ?
2469                                "C->S relaying: %d bytes\n" :
2470                                "S->C relaying: %d bytes\n", (int)num);
2471                 }
2472             }                   /* no loop, BIO_ctrl_get_read_request now
2473                                  * returns 0 anyway */
2474 
2475             if (!progress && !prev_progress)
2476                 if (cw_num > 0 || cr_num > 0 || sw_num > 0 || sr_num > 0) {
2477                     fprintf(stderr, "ERROR: got stuck\n");
2478                     fprintf(stderr, " ERROR.\n");
2479                     goto err;
2480                 }
2481             prev_progress = progress;
2482         }
2483     }
2484     while (cw_num > 0 || cr_num > 0 || sw_num > 0 || sr_num > 0);
2485 
2486     if (verbose)
2487         print_details(c_ssl, "DONE via BIO pair: ");
2488 #ifndef OPENSSL_NO_NEXTPROTONEG
2489     if (verify_npn(c_ssl, s_ssl) < 0)
2490         goto end;
2491 #endif
2492     if (verify_serverinfo() < 0) {
2493         fprintf(stderr, "Server info verify error\n");
2494         goto err;
2495     }
2496     if (verify_alpn(c_ssl, s_ssl) < 0
2497             || verify_servername(c_ssl, s_ssl) < 0)
2498         goto err;
2499 
2500     if (custom_ext_error) {
2501         fprintf(stderr, "Custom extension error\n");
2502         goto err;
2503     }
2504 
2505 #ifndef OPENSSL_NO_NEXTPROTONEG
2506  end:
2507 #endif
2508     ret = EXIT_SUCCESS;
2509 
2510  err:
2511     ERR_print_errors(bio_err);
2512 
2513     BIO_free(server);
2514     BIO_free(server_io);
2515     BIO_free(client);
2516     BIO_free(client_io);
2517     BIO_free(s_ssl_bio);
2518     BIO_free(c_ssl_bio);
2519 
2520     if (should_negotiate != NULL && strcmp(should_negotiate, "fail-client") == 0)
2521         ret = (err_in_client != 0) ? EXIT_SUCCESS : EXIT_FAILURE;
2522     else if (should_negotiate != NULL && strcmp(should_negotiate, "fail-server") == 0)
2523         ret = (err_in_server != 0) ? EXIT_SUCCESS : EXIT_FAILURE;
2524 
2525     return ret;
2526 }
2527 
2528 #define W_READ  1
2529 #define W_WRITE 2
2530 #define C_DONE  1
2531 #define S_DONE  2
2532 
doit(SSL * s_ssl,SSL * c_ssl,long count)2533 int doit(SSL *s_ssl, SSL *c_ssl, long count)
2534 {
2535     char *cbuf = NULL, *sbuf = NULL;
2536     long bufsiz;
2537     long cw_num = count, cr_num = count;
2538     long sw_num = count, sr_num = count;
2539     int ret = EXIT_FAILURE;
2540     BIO *c_to_s = NULL;
2541     BIO *s_to_c = NULL;
2542     BIO *c_bio = NULL;
2543     BIO *s_bio = NULL;
2544     int c_r, c_w, s_r, s_w;
2545     int i, j;
2546     int done = 0;
2547     int c_write, s_write;
2548     int do_server = 0, do_client = 0;
2549     int max_frag = 5 * 1024;
2550     int err_in_client = 0;
2551     int err_in_server = 0;
2552 
2553     bufsiz = count > 40 * 1024 ? 40 * 1024 : count;
2554 
2555     if ((cbuf = OPENSSL_zalloc(bufsiz)) == NULL)
2556         goto err;
2557     if ((sbuf = OPENSSL_zalloc(bufsiz)) == NULL)
2558         goto err;
2559 
2560     c_to_s = BIO_new(BIO_s_mem());
2561     s_to_c = BIO_new(BIO_s_mem());
2562     if ((s_to_c == NULL) || (c_to_s == NULL)) {
2563         ERR_print_errors(bio_err);
2564         goto err;
2565     }
2566 
2567     c_bio = BIO_new(BIO_f_ssl());
2568     s_bio = BIO_new(BIO_f_ssl());
2569     if ((c_bio == NULL) || (s_bio == NULL)) {
2570         ERR_print_errors(bio_err);
2571         goto err;
2572     }
2573 
2574     SSL_set_connect_state(c_ssl);
2575     SSL_set_bio(c_ssl, s_to_c, c_to_s);
2576     SSL_set_max_send_fragment(c_ssl, max_frag);
2577     BIO_set_ssl(c_bio, c_ssl, BIO_NOCLOSE);
2578 
2579     /*
2580      * We've just given our ref to these BIOs to c_ssl. We need another one to
2581      * give to s_ssl
2582      */
2583     if (!BIO_up_ref(c_to_s)) {
2584         /* c_to_s and s_to_c will get freed when we free c_ssl */
2585         c_to_s = NULL;
2586         s_to_c = NULL;
2587         goto err;
2588     }
2589     if (!BIO_up_ref(s_to_c)) {
2590         /* s_to_c will get freed when we free c_ssl */
2591         s_to_c = NULL;
2592         goto err;
2593     }
2594 
2595     SSL_set_accept_state(s_ssl);
2596     SSL_set_bio(s_ssl, c_to_s, s_to_c);
2597 
2598     /* We've used up all our refs to these now */
2599     c_to_s = NULL;
2600     s_to_c = NULL;
2601 
2602     SSL_set_max_send_fragment(s_ssl, max_frag);
2603     BIO_set_ssl(s_bio, s_ssl, BIO_NOCLOSE);
2604 
2605     c_r = 0;
2606     s_r = 1;
2607     c_w = 1;
2608     s_w = 0;
2609     c_write = 1, s_write = 0;
2610 
2611     /* We can always do writes */
2612     for (;;) {
2613         do_server = 0;
2614         do_client = 0;
2615 
2616         i = (int)BIO_pending(s_bio);
2617         if ((i && s_r) || s_w)
2618             do_server = 1;
2619 
2620         i = (int)BIO_pending(c_bio);
2621         if ((i && c_r) || c_w)
2622             do_client = 1;
2623 
2624         if (do_server && debug) {
2625             if (SSL_in_init(s_ssl))
2626                 printf("server waiting in SSL_accept - %s\n",
2627                        SSL_state_string_long(s_ssl));
2628         }
2629 
2630         if (do_client && debug) {
2631             if (SSL_in_init(c_ssl))
2632                 printf("client waiting in SSL_connect - %s\n",
2633                        SSL_state_string_long(c_ssl));
2634         }
2635 
2636         if (!do_client && !do_server) {
2637             fprintf(stdout, "ERROR IN STARTUP\n");
2638             ERR_print_errors(bio_err);
2639             goto err;
2640         }
2641         if (do_client && !(done & C_DONE)) {
2642             if (c_write) {
2643                 j = (cw_num > bufsiz) ? (int)bufsiz : (int)cw_num;
2644                 i = BIO_write(c_bio, cbuf, j);
2645                 if (i < 0) {
2646                     c_r = 0;
2647                     c_w = 0;
2648                     if (BIO_should_retry(c_bio)) {
2649                         if (BIO_should_read(c_bio))
2650                             c_r = 1;
2651                         if (BIO_should_write(c_bio))
2652                             c_w = 1;
2653                     } else {
2654                         fprintf(stderr, "ERROR in CLIENT\n");
2655                         err_in_client = 1;
2656                         ERR_print_errors(bio_err);
2657                         goto err;
2658                     }
2659                 } else if (i == 0) {
2660                     fprintf(stderr, "SSL CLIENT STARTUP FAILED\n");
2661                     goto err;
2662                 } else {
2663                     if (debug)
2664                         printf("client wrote %d\n", i);
2665                     /* ok */
2666                     s_r = 1;
2667                     c_write = 0;
2668                     cw_num -= i;
2669                     if (max_frag > 1029)
2670                         SSL_set_max_send_fragment(c_ssl, max_frag -= 5);
2671                 }
2672             } else {
2673                 i = BIO_read(c_bio, cbuf, bufsiz);
2674                 if (i < 0) {
2675                     c_r = 0;
2676                     c_w = 0;
2677                     if (BIO_should_retry(c_bio)) {
2678                         if (BIO_should_read(c_bio))
2679                             c_r = 1;
2680                         if (BIO_should_write(c_bio))
2681                             c_w = 1;
2682                     } else {
2683                         fprintf(stderr, "ERROR in CLIENT\n");
2684                         err_in_client = 1;
2685                         ERR_print_errors(bio_err);
2686                         goto err;
2687                     }
2688                 } else if (i == 0) {
2689                     fprintf(stderr, "SSL CLIENT STARTUP FAILED\n");
2690                     goto err;
2691                 } else {
2692                     if (debug)
2693                         printf("client read %d\n", i);
2694                     cr_num -= i;
2695                     if (sw_num > 0) {
2696                         s_write = 1;
2697                         s_w = 1;
2698                     }
2699                     if (cr_num <= 0) {
2700                         s_write = 1;
2701                         s_w = 1;
2702                         done = S_DONE | C_DONE;
2703                     }
2704                 }
2705             }
2706         }
2707 
2708         if (do_server && !(done & S_DONE)) {
2709             if (!s_write) {
2710                 i = BIO_read(s_bio, sbuf, bufsiz);
2711                 if (i < 0) {
2712                     s_r = 0;
2713                     s_w = 0;
2714                     if (BIO_should_retry(s_bio)) {
2715                         if (BIO_should_read(s_bio))
2716                             s_r = 1;
2717                         if (BIO_should_write(s_bio))
2718                             s_w = 1;
2719                     } else {
2720                         fprintf(stderr, "ERROR in SERVER\n");
2721                         err_in_server = 1;
2722                         ERR_print_errors(bio_err);
2723                         goto err;
2724                     }
2725                 } else if (i == 0) {
2726                     ERR_print_errors(bio_err);
2727                     fprintf(stderr,
2728                             "SSL SERVER STARTUP FAILED in SSL_read\n");
2729                     goto err;
2730                 } else {
2731                     if (debug)
2732                         printf("server read %d\n", i);
2733                     sr_num -= i;
2734                     if (cw_num > 0) {
2735                         c_write = 1;
2736                         c_w = 1;
2737                     }
2738                     if (sr_num <= 0) {
2739                         s_write = 1;
2740                         s_w = 1;
2741                         c_write = 0;
2742                     }
2743                 }
2744             } else {
2745                 j = (sw_num > bufsiz) ? (int)bufsiz : (int)sw_num;
2746                 i = BIO_write(s_bio, sbuf, j);
2747                 if (i < 0) {
2748                     s_r = 0;
2749                     s_w = 0;
2750                     if (BIO_should_retry(s_bio)) {
2751                         if (BIO_should_read(s_bio))
2752                             s_r = 1;
2753                         if (BIO_should_write(s_bio))
2754                             s_w = 1;
2755                     } else {
2756                         fprintf(stderr, "ERROR in SERVER\n");
2757                         err_in_server = 1;
2758                         ERR_print_errors(bio_err);
2759                         goto err;
2760                     }
2761                 } else if (i == 0) {
2762                     ERR_print_errors(bio_err);
2763                     fprintf(stderr,
2764                             "SSL SERVER STARTUP FAILED in SSL_write\n");
2765                     goto err;
2766                 } else {
2767                     if (debug)
2768                         printf("server wrote %d\n", i);
2769                     sw_num -= i;
2770                     s_write = 0;
2771                     c_r = 1;
2772                     if (sw_num <= 0)
2773                         done |= S_DONE;
2774                     if (max_frag > 1029)
2775                         SSL_set_max_send_fragment(s_ssl, max_frag -= 5);
2776                 }
2777             }
2778         }
2779 
2780         if ((done & S_DONE) && (done & C_DONE))
2781             break;
2782     }
2783 
2784     if (verbose)
2785         print_details(c_ssl, "DONE: ");
2786 #ifndef OPENSSL_NO_NEXTPROTONEG
2787     if (verify_npn(c_ssl, s_ssl) < 0)
2788         goto err;
2789 #endif
2790     if (verify_serverinfo() < 0) {
2791         fprintf(stderr, "Server info verify error\n");
2792         goto err;
2793     }
2794     if (custom_ext_error) {
2795         fprintf(stderr, "Custom extension error\n");
2796         goto err;
2797     }
2798     ret = EXIT_SUCCESS;
2799  err:
2800     BIO_free(c_to_s);
2801     BIO_free(s_to_c);
2802     BIO_free_all(c_bio);
2803     BIO_free_all(s_bio);
2804     OPENSSL_free(cbuf);
2805     OPENSSL_free(sbuf);
2806 
2807     if (should_negotiate != NULL && strcmp(should_negotiate, "fail-client") == 0)
2808         ret = (err_in_client != 0) ? EXIT_SUCCESS : EXIT_FAILURE;
2809     else if (should_negotiate != NULL && strcmp(should_negotiate, "fail-server") == 0)
2810         ret = (err_in_server != 0) ? EXIT_SUCCESS : EXIT_FAILURE;
2811 
2812     return ret;
2813 }
2814 
verify_callback(int ok,X509_STORE_CTX * ctx)2815 static int verify_callback(int ok, X509_STORE_CTX *ctx)
2816 {
2817     char *s, buf[256];
2818 
2819     s = X509_NAME_oneline(X509_get_subject_name(X509_STORE_CTX_get_current_cert(ctx)),
2820                           buf, sizeof(buf));
2821     if (s != NULL) {
2822         if (ok)
2823             printf("depth=%d %s\n", X509_STORE_CTX_get_error_depth(ctx), buf);
2824         else {
2825             fprintf(stderr, "depth=%d error=%d %s\n",
2826                     X509_STORE_CTX_get_error_depth(ctx),
2827                     X509_STORE_CTX_get_error(ctx), buf);
2828         }
2829     }
2830 
2831     if (ok == 0) {
2832         int i = X509_STORE_CTX_get_error(ctx);
2833 
2834         switch (i) {
2835         default:
2836             fprintf(stderr, "Error string: %s\n",
2837                     X509_verify_cert_error_string(i));
2838             break;
2839         case X509_V_ERR_CERT_NOT_YET_VALID:
2840         case X509_V_ERR_CERT_HAS_EXPIRED:
2841         case X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT:
2842             ok = 1;
2843             break;
2844         }
2845     }
2846 
2847     return ok;
2848 }
2849 
app_verify_callback(X509_STORE_CTX * ctx,void * arg)2850 static int app_verify_callback(X509_STORE_CTX *ctx, void *arg)
2851 {
2852     int ok = 1;
2853     struct app_verify_arg *cb_arg = arg;
2854 
2855     if (cb_arg->app_verify) {
2856         char *s = NULL, buf[256];
2857         X509 *c = X509_STORE_CTX_get0_cert(ctx);
2858 
2859         printf("In app_verify_callback, allowing cert. ");
2860         printf("Arg is: %s\n", cb_arg->string);
2861         printf("Finished printing do we have a context? 0x%p a cert? 0x%p\n",
2862                 (void *)ctx, (void *)c);
2863         if (c)
2864             s = X509_NAME_oneline(X509_get_subject_name(c), buf, 256);
2865         if (s != NULL) {
2866             printf("cert depth=%d %s\n",
2867                     X509_STORE_CTX_get_error_depth(ctx), buf);
2868         }
2869         return 1;
2870     }
2871 
2872     ok = X509_verify_cert(ctx);
2873 
2874     return ok;
2875 }
2876 
2877 #ifndef OPENSSL_NO_PSK
2878 /* convert the PSK key (psk_key) in ascii to binary (psk) */
psk_key2bn(const char * pskkey,unsigned char * psk,unsigned int max_psk_len)2879 static int psk_key2bn(const char *pskkey, unsigned char *psk,
2880                       unsigned int max_psk_len)
2881 {
2882     int ret;
2883     BIGNUM *bn = NULL;
2884 
2885     ret = BN_hex2bn(&bn, pskkey);
2886     if (!ret) {
2887         BIO_printf(bio_err, "Could not convert PSK key '%s' to BIGNUM\n",
2888                    pskkey);
2889         BN_free(bn);
2890         return 0;
2891     }
2892     if (BN_num_bytes(bn) > (int)max_psk_len) {
2893         BIO_printf(bio_err,
2894                    "psk buffer of callback is too small (%d) for key (%d)\n",
2895                    max_psk_len, BN_num_bytes(bn));
2896         BN_free(bn);
2897         return 0;
2898     }
2899     ret = BN_bn2bin(bn, psk);
2900     BN_free(bn);
2901     return ret;
2902 }
2903 
psk_client_callback(SSL * ssl,const char * hint,char * identity,unsigned int max_identity_len,unsigned char * psk,unsigned int max_psk_len)2904 static unsigned int psk_client_callback(SSL *ssl, const char *hint,
2905                                         char *identity,
2906                                         unsigned int max_identity_len,
2907                                         unsigned char *psk,
2908                                         unsigned int max_psk_len)
2909 {
2910     int ret;
2911     unsigned int psk_len = 0;
2912 
2913     ret = BIO_snprintf(identity, max_identity_len, "Client_identity");
2914     if (ret < 0)
2915         goto out_err;
2916     if (debug)
2917         fprintf(stderr, "client: created identity '%s' len=%d\n", identity,
2918                 ret);
2919     ret = psk_key2bn(psk_key, psk, max_psk_len);
2920     if (ret < 0)
2921         goto out_err;
2922     psk_len = ret;
2923  out_err:
2924     return psk_len;
2925 }
2926 
psk_server_callback(SSL * ssl,const char * identity,unsigned char * psk,unsigned int max_psk_len)2927 static unsigned int psk_server_callback(SSL *ssl, const char *identity,
2928                                         unsigned char *psk,
2929                                         unsigned int max_psk_len)
2930 {
2931     unsigned int psk_len = 0;
2932 
2933     if (strcmp(identity, "Client_identity") != 0) {
2934         BIO_printf(bio_err, "server: PSK error: client identity not found\n");
2935         return 0;
2936     }
2937     psk_len = psk_key2bn(psk_key, psk, max_psk_len);
2938     return psk_len;
2939 }
2940 #endif
2941