2 * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010 Free Software
5 * Author: Simon Josefsson
7 * This file is part of GNUTLS.
9 * GNUTLS is free software; you can redistribute it and/or modify it
10 * under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 3 of the License, or
12 * (at your option) any later version.
14 * GNUTLS is distributed in the hope that it will be useful, but
15 * WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with GNUTLS; if not, write to the Free Software Foundation,
21 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
24 /* Parts copied from GnuTLS example programs. */
33 #include <sys/types.h>
34 #include <netinet/in.h>
35 #include <sys/socket.h>
37 #include <arpa/inet.h>
39 #include <gnutls/gnutls.h>
43 #include "ex-session-info.c"
44 #include "ex-x509-info.c"
50 tls_log_func (int level
, const char *str
)
52 fprintf (stderr
, "%s |<%d>| %s", child
? "server" : "client", level
, str
);
55 /* A very basic TLS client, with anonymous authentication.
59 #define MSG "Hello TLS"
61 static unsigned char ca_pem
[] =
62 "-----BEGIN CERTIFICATE-----\n"
63 "MIIB5zCCAVKgAwIBAgIERiYdJzALBgkqhkiG9w0BAQUwGTEXMBUGA1UEAxMOR251\n"
64 "VExTIHRlc3QgQ0EwHhcNMDcwNDE4MTMyOTExWhcNMDgwNDE3MTMyOTExWjAZMRcw\n"
65 "FQYDVQQDEw5HbnVUTFMgdGVzdCBDQTCBnDALBgkqhkiG9w0BAQEDgYwAMIGIAoGA\n"
66 "vuyYeh1vfmslnuggeEKgZAVmQ5ltSdUY7H25WGSygKMUYZ0KT74v8C780qtcNt9T\n"
67 "7EPH/N6RvB4BprdssgcQLsthR3XKA84jbjjxNCcaGs33lvOz8A1nf8p3hD+cKfRi\n"
68 "kfYSW2JazLrtCC4yRCas/SPOUxu78of+3HiTfFm/oXUCAwEAAaNDMEEwDwYDVR0T\n"
69 "AQH/BAUwAwEB/zAPBgNVHQ8BAf8EBQMDBwQAMB0GA1UdDgQWBBTpPBz7rZJu5gak\n"
70 "Viyi4cBTJ8jylTALBgkqhkiG9w0BAQUDgYEAiaIRqGfp1jPpNeVhABK60SU0KIAy\n"
71 "njuu7kHq5peUgYn8Jd9zNzExBOEp1VOipGsf6G66oQAhDFp2o8zkz7ZH71zR4HEW\n"
72 "KoX6n5Emn6DvcEH/9pAhnGxNHJAoS7czTKv/JDZJhkqHxyrE1fuLsg5Qv25DTw7+\n"
73 "PfqUpIhz5Bbm7J4=\n" "-----END CERTIFICATE-----\n";
74 const gnutls_datum_t ca
= { ca_pem
, sizeof (ca_pem
) };
76 static unsigned char cert_pem
[] =
77 "-----BEGIN CERTIFICATE-----\n"
78 "MIICHjCCAYmgAwIBAgIERiYdNzALBgkqhkiG9w0BAQUwGTEXMBUGA1UEAxMOR251\n"
79 "VExTIHRlc3QgQ0EwHhcNMDcwNDE4MTMyOTI3WhcNMDgwNDE3MTMyOTI3WjAdMRsw\n"
80 "GQYDVQQDExJHbnVUTFMgdGVzdCBjbGllbnQwgZwwCwYJKoZIhvcNAQEBA4GMADCB\n"
81 "iAKBgLtmQ/Xyxde2jMzF3/WIO7HJS2oOoa0gUEAIgKFPXKPQ+GzP5jz37AR2ExeL\n"
82 "ZIkiW8DdU3w77XwEu4C5KL6Om8aOoKUSy/VXHqLnu7czSZ/ju0quak1o/8kR4jKN\n"
83 "zj2AC41179gAgY8oBAOgIo1hBAf6tjd9IQdJ0glhaZiQo1ipAgMBAAGjdjB0MAwG\n"
84 "A1UdEwEB/wQCMAAwEwYDVR0lBAwwCgYIKwYBBQUHAwIwDwYDVR0PAQH/BAUDAweg\n"
85 "ADAdBgNVHQ4EFgQUTLkKm/odNON+3svSBxX+odrLaJEwHwYDVR0jBBgwFoAU6Twc\n"
86 "+62SbuYGpFYsouHAUyfI8pUwCwYJKoZIhvcNAQEFA4GBALujmBJVZnvaTXr9cFRJ\n"
87 "jpfc/3X7sLUsMvumcDE01ls/cG5mIatmiyEU9qI3jbgUf82z23ON/acwJf875D3/\n"
88 "U7jyOsBJ44SEQITbin2yUeJMIm1tievvdNXBDfW95AM507ShzP12sfiJkJfjjdhy\n"
89 "dc8Siq5JojruiMizAf0pA7in\n" "-----END CERTIFICATE-----\n";
90 const gnutls_datum_t cert
= { cert_pem
, sizeof (cert_pem
) };
92 static unsigned char key_pem
[] =
93 "-----BEGIN RSA PRIVATE KEY-----\n"
94 "MIICXAIBAAKBgQC7ZkP18sXXtozMxd/1iDuxyUtqDqGtIFBACIChT1yj0Phsz+Y8\n"
95 "9+wEdhMXi2SJIlvA3VN8O+18BLuAuSi+jpvGjqClEsv1Vx6i57u3M0mf47tKrmpN\n"
96 "aP/JEeIyjc49gAuNde/YAIGPKAQDoCKNYQQH+rY3fSEHSdIJYWmYkKNYqQIDAQAB\n"
97 "AoGADpmARG5CQxS+AesNkGmpauepiCz1JBF/JwnyiX6vEzUh0Ypd39SZztwrDxvF\n"
98 "PJjQaKVljml1zkJpIDVsqvHdyVdse8M+Qn6hw4x2p5rogdvhhIL1mdWo7jWeVJTF\n"
99 "RKB7zLdMPs3ySdtcIQaF9nUAQ2KJEvldkO3m/bRJFEp54k0CQQDYy+RlTmwRD6hy\n"
100 "7UtMjR0H3CSZJeQ8svMCxHLmOluG9H1UKk55ZBYfRTsXniqUkJBZ5wuV1L+pR9EK\n"
101 "ca89a+1VAkEA3UmBelwEv2u9cAU1QjKjmwju1JgXbrjEohK+3B5y0ESEXPAwNQT9\n"
102 "TrDM1m9AyxYTWLxX93dI5QwNFJtmbtjeBQJARSCWXhsoaDRG8QZrCSjBxfzTCqZD\n"
103 "ZXtl807ymCipgJm60LiAt0JLr4LiucAsMZz6+j+quQbSakbFCACB8SLV1QJBAKZQ\n"
104 "YKf+EPNtnmta/rRKKvySsi3GQZZN+Dt3q0r094XgeTsAqrqujVNfPhTMeP4qEVBX\n"
105 "/iVX2cmMTSh3w3z8MaECQEp0XJWDVKOwcTW6Ajp9SowtmiZ3YDYo1LF9igb4iaLv\n"
106 "sWZGfbnU3ryjvkb6YuFjgtzbZDZHWQCo8/cOtOBmPdk=\n"
107 "-----END RSA PRIVATE KEY-----\n";
108 const gnutls_datum_t key
= { key_pem
, sizeof (key_pem
) };
114 gnutls_session_t session
;
115 char buffer
[MAX_BUF
+ 1];
116 gnutls_certificate_credentials_t xcred
;
118 gnutls_global_init ();
120 gnutls_global_set_log_function (tls_log_func
);
122 gnutls_global_set_log_level (6);
124 gnutls_certificate_allocate_credentials (&xcred
);
126 /* sets the trusted cas file
128 gnutls_certificate_set_x509_trust_mem (xcred
, &ca
, GNUTLS_X509_FMT_PEM
);
129 gnutls_certificate_set_x509_key_mem (xcred
, &cert
, &key
,
130 GNUTLS_X509_FMT_PEM
);
132 /* Initialize TLS session
134 gnutls_init (&session
, GNUTLS_CLIENT
);
136 /* Use default priorities */
137 gnutls_set_default_priority (session
);
139 /* put the x509 credentials to the current session
141 gnutls_credentials_set (session
, GNUTLS_CRD_CERTIFICATE
, xcred
);
143 /* connect to the peer
147 gnutls_transport_set_ptr (session
, (gnutls_transport_ptr_t
) sd
);
149 /* Perform the TLS handshake
151 ret
= gnutls_handshake (session
);
155 fail ("client: Handshake failed\n");
161 success ("client: Handshake was completed\n");
164 success ("client: TLS version is: %s\n",
165 gnutls_protocol_get_name (gnutls_protocol_get_version (session
)));
167 /* see the Getting peer's information example */
168 print_info (session
);
170 ret
= gnutls_record_send (session
, MSG
, strlen (MSG
));
172 if (ret
== strlen (MSG
))
174 success ("client: sent record.\n");
178 fail ("client: failed to send record.\n");
183 ret
= gnutls_record_recv (session
, buffer
, MAX_BUF
);
185 success ("client: recv returned %d.\n", ret
);
187 if (ret
== GNUTLS_E_REHANDSHAKE
)
189 success ("client: doing handshake!\n");
190 ret
= gnutls_handshake (session
);
193 success ("client: handshake complete, reading again.\n");
194 ret
= gnutls_record_recv (session
, buffer
, MAX_BUF
);
198 fail ("client: handshake failed.\n");
204 success ("client: Peer has closed the TLS connection\n");
209 fail ("client: Error: %s\n", gnutls_strerror (ret
));
213 printf ("- Received %d bytes: ", ret
);
214 for (ii
= 0; ii
< ret
; ii
++)
216 fputc (buffer
[ii
], stdout
);
218 fputs ("\n", stdout
);
220 gnutls_bye (session
, GNUTLS_SHUT_RDWR
);
226 gnutls_deinit (session
);
228 gnutls_certificate_free_credentials (xcred
);
230 gnutls_global_deinit ();
233 /* This is a sample TLS 1.0 echo server, using X.509 authentication.
236 #define SA struct sockaddr
238 #define PORT 5556 /* listen to 5556 port */
241 /* These are global */
242 gnutls_certificate_credentials_t x509_cred
;
244 static gnutls_session_t
245 initialize_tls_session (void)
247 gnutls_session_t session
;
249 gnutls_init (&session
, GNUTLS_SERVER
);
251 /* avoid calling all the priority functions, since the defaults
254 gnutls_set_default_priority (session
);
256 gnutls_credentials_set (session
, GNUTLS_CRD_CERTIFICATE
, x509_cred
);
258 /* request client certificate if any.
259 Moved to later on to be able to test re-handshakes.
260 gnutls_certificate_server_set_request (session, GNUTLS_CERT_REQUEST);
263 gnutls_dh_set_prime_bits (session
, DH_BITS
);
268 static gnutls_dh_params_t dh_params
;
271 generate_dh_params (void)
273 const gnutls_datum_t p3
= { (char *) pkcs3
, strlen (pkcs3
) };
274 /* Generate Diffie-Hellman parameters - for use with DHE
275 * kx algorithms. These should be discarded and regenerated
276 * once a day, once a week or once a month. Depending on the
277 * security requirements.
279 gnutls_dh_params_init (&dh_params
);
280 return gnutls_dh_params_import_pkcs3 (dh_params
, &p3
, GNUTLS_X509_FMT_PEM
);
283 int err
, listen_sd
, i
;
285 struct sockaddr_in sa_serv
;
286 struct sockaddr_in sa_cli
;
289 gnutls_session_t session
;
290 char buffer
[MAX_BUF
+ 1];
294 static unsigned char server_cert_pem
[] =
295 "-----BEGIN CERTIFICATE-----\n"
296 "MIICVjCCAcGgAwIBAgIERiYdMTALBgkqhkiG9w0BAQUwGTEXMBUGA1UEAxMOR251\n"
297 "VExTIHRlc3QgQ0EwHhcNMDcwNDE4MTMyOTIxWhcNMDgwNDE3MTMyOTIxWjA3MRsw\n"
298 "GQYDVQQKExJHbnVUTFMgdGVzdCBzZXJ2ZXIxGDAWBgNVBAMTD3Rlc3QuZ251dGxz\n"
299 "Lm9yZzCBnDALBgkqhkiG9w0BAQEDgYwAMIGIAoGA17pcr6MM8C6pJ1aqU46o63+B\n"
300 "dUxrmL5K6rce+EvDasTaDQC46kwTHzYWk95y78akXrJutsoKiFV1kJbtple8DDt2\n"
301 "DZcevensf9Op7PuFZKBroEjOd35znDET/z3IrqVgbtm2jFqab7a+n2q9p/CgMyf1\n"
302 "tx2S5Zacc1LWn9bIjrECAwEAAaOBkzCBkDAMBgNVHRMBAf8EAjAAMBoGA1UdEQQT\n"
303 "MBGCD3Rlc3QuZ251dGxzLm9yZzATBgNVHSUEDDAKBggrBgEFBQcDATAPBgNVHQ8B\n"
304 "Af8EBQMDB6AAMB0GA1UdDgQWBBTrx0Vu5fglyoyNgw106YbU3VW0dTAfBgNVHSME\n"
305 "GDAWgBTpPBz7rZJu5gakViyi4cBTJ8jylTALBgkqhkiG9w0BAQUDgYEAaFEPTt+7\n"
306 "bzvBuOf7+QmeQcn29kT6Bsyh1RHJXf8KTk5QRfwp6ogbp94JQWcNQ/S7YDFHglD1\n"
307 "AwUNBRXwd3riUsMnsxgeSDxYBfJYbDLeohNBsqaPDJb7XailWbMQKfAbFQ8cnOxg\n"
308 "rOKLUQRWJ0K3HyXRMhbqjdLIaQiCvQLuizo=\n" "-----END CERTIFICATE-----\n";
310 const gnutls_datum_t server_cert
= { server_cert_pem
,
311 sizeof (server_cert_pem
)
314 static unsigned char server_key_pem
[] =
315 "-----BEGIN RSA PRIVATE KEY-----\n"
316 "MIICXAIBAAKBgQDXulyvowzwLqknVqpTjqjrf4F1TGuYvkrqtx74S8NqxNoNALjq\n"
317 "TBMfNhaT3nLvxqResm62ygqIVXWQlu2mV7wMO3YNlx696ex/06ns+4VkoGugSM53\n"
318 "fnOcMRP/PciupWBu2baMWppvtr6far2n8KAzJ/W3HZLllpxzUtaf1siOsQIDAQAB\n"
319 "AoGAYAFyKkAYC/PYF8e7+X+tsVCHXppp8AoP8TEZuUqOZz/AArVlle/ROrypg5kl\n"
320 "8YunrvUdzH9R/KZ7saNZlAPLjZyFG9beL/am6Ai7q7Ma5HMqjGU8kTEGwD7K+lbG\n"
321 "iomokKMOl+kkbY/2sI5Czmbm+/PqLXOjtVc5RAsdbgvtmvkCQQDdV5QuU8jap8Hs\n"
322 "Eodv/tLJ2z4+SKCV2k/7FXSKWe0vlrq0cl2qZfoTUYRnKRBcWxc9o92DxK44wgPi\n"
323 "oMQS+O7fAkEA+YG+K9e60sj1K4NYbMPAbYILbZxORDecvP8lcphvwkOVUqbmxOGh\n"
324 "XRmTZUuhBrJhJKKf6u7gf3KWlPl6ShKEbwJASC118cF6nurTjuLf7YKARDjNTEws\n"
325 "qZEeQbdWYINAmCMj0RH2P0mvybrsXSOD5UoDAyO7aWuqkHGcCLv6FGG+qwJAOVqq\n"
326 "tXdUucl6GjOKKw5geIvRRrQMhb/m5scb+5iw8A4LEEHPgGiBaF5NtJZLALgWfo5n\n"
327 "hmC8+G8F0F78znQtPwJBANexu+Tg5KfOnzSILJMo3oXiXhf5PqXIDmbN0BKyCKAQ\n"
328 "LfkcEcUbVfmDaHpvzwY9VEaoMOKVLitETXdNSxVpvWM=\n"
329 "-----END RSA PRIVATE KEY-----\n";
331 const gnutls_datum_t server_key
= { server_key_pem
,
332 sizeof (server_key_pem
)
340 listen_sd
= socket (AF_INET
, SOCK_STREAM
, 0);
344 fail ("server: socket failed\n");
348 memset (&sa_serv
, '\0', sizeof (sa_serv
));
349 sa_serv
.sin_family
= AF_INET
;
350 sa_serv
.sin_addr
.s_addr
= INADDR_ANY
;
351 sa_serv
.sin_port
= htons (PORT
); /* Server Port number */
353 setsockopt (listen_sd
, SOL_SOCKET
, SO_REUSEADDR
, (void *) &optval
,
356 err
= bind (listen_sd
, (SA
*) & sa_serv
, sizeof (sa_serv
));
360 fail ("server: bind failed\n");
364 err
= listen (listen_sd
, 1024);
368 fail ("server: listen failed\n");
372 success ("server: ready. Listening to port '%d'.\n", PORT
);
378 /* this must be called once in the program
380 gnutls_global_init ();
382 gnutls_global_set_log_function (tls_log_func
);
384 gnutls_global_set_log_level (6);
386 gnutls_certificate_allocate_credentials (&x509_cred
);
387 gnutls_certificate_set_x509_trust_mem (x509_cred
, &ca
, GNUTLS_X509_FMT_PEM
);
389 gnutls_certificate_set_x509_key_mem (x509_cred
, &server_cert
, &server_key
,
390 GNUTLS_X509_FMT_PEM
);
392 success ("Launched, generating DH parameters...\n");
394 generate_dh_params ();
396 gnutls_certificate_set_dh_params (x509_cred
, dh_params
);
398 client_len
= sizeof (sa_cli
);
400 session
= initialize_tls_session ();
402 sd
= accept (listen_sd
, (SA
*) & sa_cli
, &client_len
);
404 success ("server: connection from %s, port %d\n",
405 inet_ntop (AF_INET
, &sa_cli
.sin_addr
, topbuf
,
406 sizeof (topbuf
)), ntohs (sa_cli
.sin_port
));
408 gnutls_transport_set_ptr (session
, (gnutls_transport_ptr_t
) sd
);
409 ret
= gnutls_handshake (session
);
413 gnutls_deinit (session
);
414 fail ("server: Handshake has failed (%s)\n\n", gnutls_strerror (ret
));
417 success ("server: Handshake was completed\n");
419 success ("server: TLS version is: %s\n",
420 gnutls_protocol_get_name (gnutls_protocol_get_version (session
)));
422 /* see the Getting peer's information example */
423 print_info (session
);
428 memset (buffer
, 0, MAX_BUF
+ 1);
429 ret
= gnutls_record_recv (session
, buffer
, MAX_BUF
);
433 success ("server: Peer has closed the GNUTLS connection\n");
438 fail ("server: Received corrupted data(%d). Closing...\n", ret
);
443 gnutls_certificate_server_set_request (session
,
444 GNUTLS_CERT_REQUEST
);
446 success ("server: got data, forcing rehandshake.\n");
448 ret
= gnutls_rehandshake (session
);
451 fail ("server: rehandshake failed\n");
456 ret
= gnutls_handshake (session
);
459 fail ("server: (re)handshake failed\n");
464 success ("server: rehandshake complete.\n");
466 /* echo data back to the client
468 gnutls_record_send (session
, buffer
, strlen (buffer
));
471 /* do not wait for the peer to close the connection.
473 gnutls_bye (session
, GNUTLS_SHUT_WR
);
476 gnutls_deinit (session
);
480 gnutls_certificate_free_credentials (x509_cred
);
482 gnutls_dh_params_deinit (dh_params
);
484 gnutls_global_deinit ();
486 success ("server: finished\n");