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Diffstat (limited to 'tests/handshake-timeout.c')
| -rw-r--r-- | tests/handshake-timeout.c | 232 |
1 files changed, 232 insertions, 0 deletions
diff --git a/tests/handshake-timeout.c b/tests/handshake-timeout.c new file mode 100644 index 0000000000..c7ff20ca9e --- /dev/null +++ b/tests/handshake-timeout.c @@ -0,0 +1,232 @@ +/* + * 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 Lesser General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/> + */ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> + +#if defined(_WIN32) + +int main() +{ + exit(77); +} + +#else + +#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 <signal.h> +#include <virt-time.h> + +#include "utils.h" + +/* This program tests whether the handshake timeout value is enforced. + */ + +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); +} + +/* A very basic TLS client, with anonymous authentication. + */ + +static void client(int fd, int wait) +{ + int ret; + gnutls_anon_client_credentials_t anoncred; + gnutls_session_t session; + /* Need to enable anonymous KX specifically. */ + + 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_handshake_set_timeout(session, 20 * 1000); + + /* Use default priorities */ + gnutls_priority_set_direct(session, "NORMAL:+ANON-ECDH:-VERS-ALL:+VERS-TLS1.2", NULL); + + /* put the anonymous credentials to the current session + */ + gnutls_credentials_set(session, GNUTLS_CRD_ANON, anoncred); + + gnutls_transport_set_int(session, fd); + + /* Perform the TLS handshake + */ + do { + ret = gnutls_handshake(session); + } + while (ret < 0 && gnutls_error_is_fatal(ret) == 0); + + gnutls_deinit(session); + gnutls_anon_free_client_credentials(anoncred); + gnutls_global_deinit(); + + if (ret < 0) { + if (ret != GNUTLS_E_TIMEDOUT || wait == 0) { + if (debug) + fail("client: unexpected error: %s\n", + gnutls_strerror(ret)); + exit(1); + } + if (debug) + success("client: expected timeout occurred\n"); + return; + } else { + if (wait != 0) { + fail("client: handshake was completed unexpectedly\n"); + gnutls_perror(ret); + exit(1); + } + } + + return; +} + +static void server(int fd, int wait) +{ + int ret; + gnutls_session_t session; + gnutls_anon_server_credentials_t anoncred; + + /* this must be called once in the program + */ + 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); + + /* avoid calling all the priority functions, since the defaults + * are adequate. + */ + gnutls_priority_set_direct(session, "NORMAL:+ANON-ECDH:-VERS-ALL:+VERS-TLS1.2", NULL); + + gnutls_credentials_set(session, GNUTLS_CRD_ANON, anoncred); + + gnutls_transport_set_int(session, fd); + + if (wait) { + virt_sec_sleep(25); + } else { + do { + ret = gnutls_handshake(session); + } + while (ret < 0 && gnutls_error_is_fatal(ret) == 0); + + if (ret == 0) + gnutls_bye(session, GNUTLS_SHUT_RDWR); + } + + gnutls_deinit(session); + gnutls_anon_free_server_credentials(anoncred); + gnutls_global_deinit(); +} + +static void start(int wait) +{ + int fd[2]; + int ret; + pid_t child; + + if (debug && wait) + fprintf(stderr, "\nWill test timeout\n"); + + ret = socketpair(AF_UNIX, SOCK_STREAM, 0, fd); + if (ret < 0) { + perror("socketpair"); + exit(1); + } + + child = fork(); + if (child < 0) { + perror("fork"); + fail("fork"); + exit(1); + } + + if (child) { + /* parent */ + close(fd[1]); + server(fd[0], wait); + close(fd[0]); + } else { + close(fd[0]); + client(fd[1], wait); + close(fd[1]); + exit(0); + } +} + +static void ch_handler(int sig) +{ + int status = 0; + wait(&status); + check_wait_status(status); + return; +} + +void doit(void) +{ + virt_time_init(); + + signal(SIGCHLD, ch_handler); + signal(SIGPIPE, SIG_IGN); + + /* make sure that normal handshake occurs */ + start(0); + + /* check the handshake with an expected timeout */ + start(1); +} + +#endif /* _WIN32 */ |