/tests/mini-rsa-psk.c
C | 346 lines | 231 code | 65 blank | 50 comment | 28 complexity | 95c05c4c7cc717e0d7fba60dc25fc08c MD5 | raw file
Possible License(s): LGPL-3.0, GPL-3.0, LGPL-2.1, LGPL-2.0
- /*
- * Copyright (C) 2004-2012 Free Software Foundation, Inc.
- * Copyright (C) 2013 Adam Sampson <ats@offog.org>
- * Copyright (C) 2013 Nikos Mavrogiannopoulos
- *
- * Author: Nikos Mavrogiannopoulos
- *
- * This file is part of GnuTLS.
- *
- * GnuTLS is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 3 of the License, or
- * (at your option) any later version.
- *
- * GnuTLS is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with GnuTLS; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
- */
- /* Parts copied from GnuTLS example programs. */
- #ifdef HAVE_CONFIG_H
- #include <config.h>
- #endif
- #include <stdio.h>
- #include <stdlib.h>
- #if defined(_WIN32)
- /* socketpair isn't supported on Win32. */
- int main(int argc, char **argv)
- {
- exit(77);
- }
- #else
- #include <string.h>
- #include <sys/types.h>
- #include <sys/socket.h>
- #if !defined(_WIN32)
- #include <sys/wait.h>
- #endif
- #include <unistd.h>
- #include <gnutls/gnutls.h>
- #include "utils.h"
- /* A very basic TLS client, with PSK authentication.
- */
- const char *side = "";
- static void tls_log_func(int level, const char *str)
- {
- fprintf(stderr, "%s|<%d>| %s", side, level, str);
- }
- #define MAX_BUF 1024
- #define MSG "Hello TLS"
- static void client(int sd)
- {
- int ret, ii;
- gnutls_session_t session;
- gnutls_certificate_credentials_t clientx509cred;
- char buffer[MAX_BUF + 1];
- gnutls_psk_client_credentials_t pskcred;
- /* Need to enable anonymous KX specifically. */
- const gnutls_datum_t key = { (void *) "DEADBEEF", 8 };
- global_init();
- gnutls_global_set_log_function(tls_log_func);
- if (debug)
- gnutls_global_set_log_level(4711);
- side = "client";
- gnutls_certificate_allocate_credentials(&clientx509cred);
- gnutls_psk_allocate_client_credentials(&pskcred);
- gnutls_psk_set_client_credentials(pskcred, "test", &key,
- GNUTLS_PSK_KEY_HEX);
- /* Initialize TLS session
- */
- gnutls_init(&session, GNUTLS_CLIENT);
- /* Use default priorities */
- gnutls_priority_set_direct(session, "NORMAL:-KX-ALL:+RSA-PSK",
- NULL);
- /* put the anonymous credentials to the current session
- */
- gnutls_credentials_set(session, GNUTLS_CRD_PSK, pskcred);
- gnutls_credentials_set(session, GNUTLS_CRD_CERTIFICATE,
- clientx509cred);
- gnutls_transport_set_int(session, sd);
- /* Perform the TLS handshake
- */
- ret = gnutls_handshake(session);
- if (ret < 0) {
- fail("client: Handshake failed\n");
- gnutls_perror(ret);
- goto end;
- } else {
- if (debug)
- success("client: Handshake was completed\n");
- }
- gnutls_record_send(session, MSG, strlen(MSG));
- ret = gnutls_record_recv(session, buffer, MAX_BUF);
- if (ret == 0) {
- if (debug)
- success
- ("client: Peer has closed the TLS connection\n");
- goto end;
- } else if (ret < 0) {
- fail("client: Error: %s\n", gnutls_strerror(ret));
- goto end;
- }
- if (debug) {
- printf("- Received %d bytes: ", ret);
- for (ii = 0; ii < ret; ii++) {
- fputc(buffer[ii], stdout);
- }
- fputs("\n", stdout);
- }
- gnutls_bye(session, GNUTLS_SHUT_RDWR);
- end:
- close(sd);
- gnutls_deinit(session);
- gnutls_psk_free_client_credentials(pskcred);
- gnutls_certificate_free_credentials(clientx509cred);
- gnutls_global_deinit();
- }
- /* This is a sample TLS 1.0 echo server, for PSK authentication.
- */
- #define MAX_BUF 1024
- static unsigned char server_cert_pem[] =
- "-----BEGIN CERTIFICATE-----\n"
- "MIICVjCCAcGgAwIBAgIERiYdMTALBgkqhkiG9w0BAQUwGTEXMBUGA1UEAxMOR251\n"
- "VExTIHRlc3QgQ0EwHhcNMDcwNDE4MTMyOTIxWhcNMDgwNDE3MTMyOTIxWjA3MRsw\n"
- "GQYDVQQKExJHbnVUTFMgdGVzdCBzZXJ2ZXIxGDAWBgNVBAMTD3Rlc3QuZ251dGxz\n"
- "Lm9yZzCBnDALBgkqhkiG9w0BAQEDgYwAMIGIAoGA17pcr6MM8C6pJ1aqU46o63+B\n"
- "dUxrmL5K6rce+EvDasTaDQC46kwTHzYWk95y78akXrJutsoKiFV1kJbtple8DDt2\n"
- "DZcevensf9Op7PuFZKBroEjOd35znDET/z3IrqVgbtm2jFqab7a+n2q9p/CgMyf1\n"
- "tx2S5Zacc1LWn9bIjrECAwEAAaOBkzCBkDAMBgNVHRMBAf8EAjAAMBoGA1UdEQQT\n"
- "MBGCD3Rlc3QuZ251dGxzLm9yZzATBgNVHSUEDDAKBggrBgEFBQcDATAPBgNVHQ8B\n"
- "Af8EBQMDB6AAMB0GA1UdDgQWBBTrx0Vu5fglyoyNgw106YbU3VW0dTAfBgNVHSME\n"
- "GDAWgBTpPBz7rZJu5gakViyi4cBTJ8jylTALBgkqhkiG9w0BAQUDgYEAaFEPTt+7\n"
- "bzvBuOf7+QmeQcn29kT6Bsyh1RHJXf8KTk5QRfwp6ogbp94JQWcNQ/S7YDFHglD1\n"
- "AwUNBRXwd3riUsMnsxgeSDxYBfJYbDLeohNBsqaPDJb7XailWbMQKfAbFQ8cnOxg\n"
- "rOKLUQRWJ0K3HyXRMhbqjdLIaQiCvQLuizo=\n" "-----END CERTIFICATE-----\n";
- const gnutls_datum_t server_cert = { server_cert_pem,
- sizeof(server_cert_pem)
- };
- static unsigned char server_key_pem[] =
- "-----BEGIN RSA PRIVATE KEY-----\n"
- "MIICXAIBAAKBgQDXulyvowzwLqknVqpTjqjrf4F1TGuYvkrqtx74S8NqxNoNALjq\n"
- "TBMfNhaT3nLvxqResm62ygqIVXWQlu2mV7wMO3YNlx696ex/06ns+4VkoGugSM53\n"
- "fnOcMRP/PciupWBu2baMWppvtr6far2n8KAzJ/W3HZLllpxzUtaf1siOsQIDAQAB\n"
- "AoGAYAFyKkAYC/PYF8e7+X+tsVCHXppp8AoP8TEZuUqOZz/AArVlle/ROrypg5kl\n"
- "8YunrvUdzH9R/KZ7saNZlAPLjZyFG9beL/am6Ai7q7Ma5HMqjGU8kTEGwD7K+lbG\n"
- "iomokKMOl+kkbY/2sI5Czmbm+/PqLXOjtVc5RAsdbgvtmvkCQQDdV5QuU8jap8Hs\n"
- "Eodv/tLJ2z4+SKCV2k/7FXSKWe0vlrq0cl2qZfoTUYRnKRBcWxc9o92DxK44wgPi\n"
- "oMQS+O7fAkEA+YG+K9e60sj1K4NYbMPAbYILbZxORDecvP8lcphvwkOVUqbmxOGh\n"
- "XRmTZUuhBrJhJKKf6u7gf3KWlPl6ShKEbwJASC118cF6nurTjuLf7YKARDjNTEws\n"
- "qZEeQbdWYINAmCMj0RH2P0mvybrsXSOD5UoDAyO7aWuqkHGcCLv6FGG+qwJAOVqq\n"
- "tXdUucl6GjOKKw5geIvRRrQMhb/m5scb+5iw8A4LEEHPgGiBaF5NtJZLALgWfo5n\n"
- "hmC8+G8F0F78znQtPwJBANexu+Tg5KfOnzSILJMo3oXiXhf5PqXIDmbN0BKyCKAQ\n"
- "LfkcEcUbVfmDaHpvzwY9VEaoMOKVLitETXdNSxVpvWM=\n"
- "-----END RSA PRIVATE KEY-----\n";
- const gnutls_datum_t server_key = { server_key_pem,
- sizeof(server_key_pem)
- };
- /* These are global */
- gnutls_psk_server_credentials_t server_pskcred;
- static gnutls_session_t initialize_tls_session(void)
- {
- gnutls_session_t session;
- gnutls_init(&session, GNUTLS_SERVER);
- /* avoid calling all the priority functions, since the defaults
- * are adequate.
- */
- gnutls_priority_set_direct(session, "NORMAL:-KX-ALL:+RSA-PSK",
- NULL);
- gnutls_credentials_set(session, GNUTLS_CRD_PSK, server_pskcred);
- return session;
- }
- static int
- pskfunc(gnutls_session_t session, const char *username,
- gnutls_datum_t * key)
- {
- if (debug)
- printf("psk: username %s\n", username);
- key->data = gnutls_malloc(4);
- key->data[0] = 0xDE;
- key->data[1] = 0xAD;
- key->data[2] = 0xBE;
- key->data[3] = 0xEF;
- key->size = 4;
- return 0;
- }
- int err, ret;
- char topbuf[512];
- gnutls_session_t session;
- char buffer[MAX_BUF + 1];
- int optval = 1;
- static void server(int sd)
- {
- gnutls_certificate_credentials_t serverx509cred;
- /* this must be called once in the program
- */
- global_init();
- gnutls_global_set_log_function(tls_log_func);
- if (debug)
- gnutls_global_set_log_level(4711);
- side = "server";
- gnutls_psk_allocate_server_credentials(&server_pskcred);
- gnutls_psk_set_server_credentials_function(server_pskcred,
- pskfunc);
- gnutls_certificate_allocate_credentials(&serverx509cred);
- gnutls_certificate_set_x509_key_mem(serverx509cred,
- &server_cert, &server_key,
- GNUTLS_X509_FMT_PEM);
- session = initialize_tls_session();
- gnutls_credentials_set(session, GNUTLS_CRD_CERTIFICATE,
- serverx509cred);
- gnutls_transport_set_int(session, sd);
- ret = gnutls_handshake(session);
- if (ret < 0) {
- close(sd);
- gnutls_deinit(session);
- fail("server: Handshake has failed (%s)\n\n",
- gnutls_strerror(ret));
- return;
- }
- if (debug)
- success("server: Handshake was completed\n");
- /* see the Getting peer's information example */
- /* print_info(session); */
- for (;;) {
- memset(buffer, 0, MAX_BUF + 1);
- ret = gnutls_record_recv(session, buffer, MAX_BUF);
- if (ret == 0) {
- if (debug)
- success
- ("server: Peer has closed the GnuTLS connection\n");
- break;
- } else if (ret < 0) {
- fail("server: Received corrupted data(%d). Closing...\n", ret);
- break;
- } else if (ret > 0) {
- /* echo data back to the client
- */
- gnutls_record_send(session, buffer,
- strlen(buffer));
- }
- }
- /* do not wait for the peer to close the connection.
- */
- gnutls_bye(session, GNUTLS_SHUT_WR);
- close(sd);
- gnutls_deinit(session);
- gnutls_psk_free_server_credentials(server_pskcred);
- gnutls_certificate_free_credentials(serverx509cred);
- gnutls_global_deinit();
- if (debug)
- success("server: finished\n");
- }
- void doit(void)
- {
- pid_t child;
- int sockets[2];
- err = socketpair(AF_UNIX, SOCK_STREAM, 0, sockets);
- if (err == -1) {
- perror("socketpair");
- fail("socketpair failed\n");
- return;
- }
- child = fork();
- if (child < 0) {
- perror("fork");
- fail("fork");
- return;
- }
- if (child) {
- int status;
- /* parent */
- server(sockets[0]);
- wait(&status);
- } else
- client(sockets[1]);
- }
- #endif /* _WIN32 */