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author | Nikos Mavrogiannopoulos <nmav@gnutls.org> | 2012-11-01 16:01:59 +0100 |
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committer | Nikos Mavrogiannopoulos <nmav@gnutls.org> | 2012-11-01 16:01:59 +0100 |
commit | 8cf976ce8bd94915509fd80665807db2d954cbc8 (patch) | |
tree | 82db2cc81bca9205754307108f32b27fc4a90b66 /tests/mini-dtls-srtp.c | |
parent | f43624701c67a914589a151d67bdfb1e3259b2eb (diff) | |
download | gnutls-8cf976ce8bd94915509fd80665807db2d954cbc8.tar.gz |
Added test on DTLS SRTP functions.
Diffstat (limited to 'tests/mini-dtls-srtp.c')
-rw-r--r-- | tests/mini-dtls-srtp.c | 312 |
1 files changed, 312 insertions, 0 deletions
diff --git a/tests/mini-dtls-srtp.c b/tests/mini-dtls-srtp.c new file mode 100644 index 0000000000..8f41d619e4 --- /dev/null +++ b/tests/mini-dtls-srtp.c @@ -0,0 +1,312 @@ +/* + * Copyright (C) 2012 Free Software Foundation, Inc. + * + * 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 + */ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#include <stdio.h> +#include <stdlib.h> + +#if defined(_WIN32) + +int +main () +{ + exit (77); +} + +#else + +#include <string.h> +#include <sys/types.h> +#include <netinet/in.h> +#include <sys/socket.h> +#include <sys/wait.h> +#include <arpa/inet.h> +#include <unistd.h> +#include <gnutls/gnutls.h> +#include <gnutls/dtls.h> + +#include "utils.h" + +static void terminate (void); + +/* This program tests the rehandshake in DTLS + */ + +static void +server_log_func (int level, const char *str) +{ + fprintf (stderr, "server|<%d>| %s", level, str); +} + +static void +client_log_func (int level, const char *str) +{ + fprintf (stderr, "client|<%d>| %s", level, str); +} + +/* These are global */ +static pid_t child; + +/* A very basic DTLS client, with anonymous authentication, that exchanges heartbeats. + */ + +static void +client (int fd, int profile) +{ + gnutls_session_t session; + int ret; + gnutls_anon_client_credentials_t anoncred; + /* Need to enable anonymous KX specifically. */ + + gnutls_global_init (); + + if (debug) + { + gnutls_global_set_log_function (client_log_func); + gnutls_global_set_log_level (4711); + } + + gnutls_anon_allocate_client_credentials (&anoncred); + + /* Initialize TLS session + */ + gnutls_init (&session, GNUTLS_CLIENT | GNUTLS_DATAGRAM); + gnutls_heartbeat_enable (session, GNUTLS_HB_PEER_ALLOWED_TO_SEND); + gnutls_dtls_set_mtu (session, 1500); + + /* Use default priorities */ + gnutls_priority_set_direct (session, + "NONE:+VERS-DTLS1.0:+CIPHER-ALL:+MAC-ALL:+SIGN-ALL:+COMP-ALL:+ANON-ECDH:+CURVE-ALL", + NULL); + if (profile) + ret = gnutls_srtp_set_profile_direct(session, "SRTP_AES128_CM_SHA1_80", + NULL); + else + ret = gnutls_srtp_set_profile_direct(session, "SRTP_NULL_SHA1_80", + NULL); + if (ret < 0) + { + gnutls_perror(ret); + exit(1); + } + + + /* put the anonymous credentials to the current session + */ + gnutls_credentials_set (session, GNUTLS_CRD_ANON, anoncred); + + gnutls_transport_set_ptr (session, (gnutls_transport_ptr_t) fd); + + /* Perform the TLS handshake + */ + do + { + ret = gnutls_handshake (session); + } + while (ret < 0 && gnutls_error_is_fatal (ret) == 0); + + if (ret < 0) + { + fail ("client: Handshake failed\n"); + gnutls_perror (ret); + exit (1); + } + else + { + if (debug) + success ("client: Handshake was completed\n"); + } + + if (debug) + success ("client: DTLS version is: %s\n", + gnutls_protocol_get_name (gnutls_protocol_get_version + (session))); + +/* + ret = gnutls_prf(session, sizeof("EXTRACTOR-dtls_srtp")-1, "EXTRACTOR-dtls_srtp", 0, ctx_len, ctx, 32, out); + if (ret < 0) + { + gnutls_perror(ret); + exit(1); + } +*/ + gnutls_bye (session, GNUTLS_SHUT_WR); + + close (fd); + + gnutls_deinit (session); + + gnutls_anon_free_client_credentials (anoncred); + + gnutls_global_deinit (); +} + +static void +terminate (void) +{ + int status; + + kill (child, SIGTERM); + wait (&status); + exit (1); +} + +static void +server (int fd, int profile) +{ + int ret; + gnutls_session_t session; + gnutls_anon_server_credentials_t anoncred; + /* this must be called once in the program + */ + gnutls_global_init (); + + if (debug) + { + gnutls_global_set_log_function (server_log_func); + gnutls_global_set_log_level (4711); + } + + gnutls_anon_allocate_server_credentials (&anoncred); + + gnutls_init (&session, GNUTLS_SERVER | GNUTLS_DATAGRAM); + gnutls_heartbeat_enable (session, GNUTLS_HB_PEER_ALLOWED_TO_SEND); + gnutls_dtls_set_mtu (session, 1500); + + /* avoid calling all the priority functions, since the defaults + * are adequate. + */ + gnutls_priority_set_direct (session, + "NONE:+VERS-DTLS1.0:+CIPHER-ALL:+MAC-ALL:+SIGN-ALL:+COMP-ALL:+ANON-ECDH:+CURVE-ALL", + NULL); + + if (profile) + ret = gnutls_srtp_set_profile_direct(session, "SRTP_AES128_CM_SHA1_80", + NULL); + else + ret = gnutls_srtp_set_profile_direct(session, "SRTP_NULL_SHA1_80", + NULL); + if (ret < 0) + { + gnutls_perror(ret); + exit(1); + } + + gnutls_credentials_set (session, GNUTLS_CRD_ANON, anoncred); + + gnutls_transport_set_ptr (session, (gnutls_transport_ptr_t) fd); + + do + { + ret = gnutls_handshake (session); + } + while (ret < 0 && gnutls_error_is_fatal (ret) == 0); + if (ret < 0) + { + close (fd); + gnutls_deinit (session); + fail ("server: Handshake has failed (%s)\n\n", + gnutls_strerror (ret)); + terminate (); + } + if (debug) + success ("server: Handshake was completed\n"); + + if (debug) + success ("server: TLS version is: %s\n", + gnutls_protocol_get_name (gnutls_protocol_get_version + (session))); + +/* + ret = gnutls_prf(session, sizeof("EXTRACTOR-dtls_srtp")-1, "EXTRACTOR-dtls_srtp", 0, ctx_len, ctx, 32, out); + if (ret < 0) + { + gnutls_perror(ret); + exit(1); + } +*/ + + /* do not wait for the peer to close the connection. + */ + gnutls_bye (session, GNUTLS_SHUT_WR); + + close (fd); + gnutls_deinit (session); + + gnutls_anon_free_server_credentials (anoncred); + + gnutls_global_deinit (); + + if (debug) + success ("server: finished\n"); +} + +static void +start (int profile) +{ + int fd[2]; + int ret; + + ret = socketpair (AF_UNIX, SOCK_DGRAM, 0, fd); + if (ret < 0) + { + perror ("socketpair"); + exit (1); + } + + child = fork (); + if (child < 0) + { + perror ("fork"); + fail ("fork"); + exit (1); + } + + if (child) + { + int status; + /* parent */ + + server (fd[0], profile); + wait (&status); + if (WEXITSTATUS (status) != 0) + fail ("Child died with status %d\n", WEXITSTATUS (status)); + } + else + { + close (fd[0]); + client (fd[1], profile); + exit (0); + } +} + +void +doit (void) +{ + start (0); + start (1); +} + +#endif /* _WIN32 */ |