--- /dev/null
+/*
+ * Copyright (C) 2016 Red Hat, 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) || !defined(HAVE_LIBSECCOMP)
+
+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 <signal.h>
+#include <gnutls/gnutls.h>
+#include <gnutls/dtls.h>
+#include <gnutls/socket.h>
+#include <errno.h>
+#include "cert-common.h"
+#include "utils.h"
+
+static void terminate(void);
+
+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);
+}
+
+#define MAX_BUF 1024
+
+static void client(int fd, struct sockaddr *connect_addr, socklen_t connect_addrlen)
+{
+ int ret;
+ char buffer[MAX_BUF + 1];
+ gnutls_certificate_credentials_t xcred;
+ gnutls_session_t session;
+
+ global_init();
+
+ if (debug) {
+ gnutls_global_set_log_function(client_log_func);
+ gnutls_global_set_log_level(4711);
+ }
+
+ gnutls_certificate_allocate_credentials(&xcred);
+
+ /* Initialize TLS session
+ */
+ gnutls_init(&session, GNUTLS_CLIENT);
+ gnutls_handshake_set_timeout(session, 20 * 1000);
+
+ /* Use default priorities */
+ gnutls_priority_set_direct(session,
+ "NORMAL:-KX-ALL:+ECDHE-RSA",
+ NULL);
+
+ gnutls_credentials_set(session, GNUTLS_CRD_CERTIFICATE, xcred);
+
+ gnutls_transport_set_fastopen(session, fd, connect_addr, connect_addrlen);
+
+ /* 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: TLS version is: %s\n",
+ gnutls_protocol_get_name
+ (gnutls_protocol_get_version(session)));
+
+ do {
+ ret = gnutls_record_recv(session, buffer, sizeof(buffer)-1);
+ } while (ret == GNUTLS_E_AGAIN || ret == GNUTLS_E_INTERRUPTED);
+
+ 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));
+ exit(1);
+ }
+
+ ret = gnutls_bye(session, GNUTLS_SHUT_RDWR);
+ if (ret < 0) {
+ fail("server: error in closing session: %s\n", gnutls_strerror(ret));
+ }
+
+ end:
+
+ close(fd);
+
+ gnutls_deinit(session);
+
+ gnutls_certificate_free_credentials(xcred);
+
+ gnutls_global_deinit();
+}
+
+
+/* These are global */
+pid_t child;
+
+static void terminate(void)
+{
+ int status;
+
+ kill(child, SIGTERM);
+ wait(&status);
+ exit(1);
+}
+
+static void server(int fd)
+{
+ int ret;
+ gnutls_certificate_credentials_t xcred;
+ char buffer[MAX_BUF + 1];
+ gnutls_session_t session;
+
+ /* 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_certificate_allocate_credentials(&xcred);
+
+ ret = gnutls_certificate_set_x509_key_mem(xcred,
+ &server_cert, &server_key,
+ GNUTLS_X509_FMT_PEM);
+ if (ret < 0)
+ exit(1);
+
+ gnutls_init(&session, GNUTLS_SERVER);
+ gnutls_handshake_set_timeout(session, 20 * 1000);
+
+ /* avoid calling all the priority functions, since the defaults
+ * are adequate.
+ */
+ gnutls_priority_set_direct(session,
+ "NORMAL:-KX-ALL:+ECDHE-RSA",
+ NULL);
+
+ gnutls_credentials_set(session, GNUTLS_CRD_CERTIFICATE, xcred);
+
+ gnutls_transport_set_int(session, 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)));
+
+ /* see the Getting peer's information example */
+ /* print_info(session); */
+
+ memset(buffer, 1, sizeof(buffer));
+ do {
+ ret = gnutls_record_send(session, buffer, sizeof(buffer)-1);
+ } while (ret == GNUTLS_E_AGAIN || ret == GNUTLS_E_INTERRUPTED);
+
+ if (ret < 0) {
+ close(fd);
+ gnutls_deinit(session);
+ fail("server: data sending has failed (%s)\n\n",
+ gnutls_strerror(ret));
+ terminate();
+ }
+
+ ret = gnutls_bye(session, GNUTLS_SHUT_RDWR);
+ if (ret < 0) {
+ fail("server: error in closing session: %s\n", gnutls_strerror(ret));
+ }
+
+ close(fd);
+ gnutls_deinit(session);
+
+ gnutls_certificate_free_credentials(xcred);
+
+ gnutls_global_deinit();
+
+ if (debug)
+ success("server: finished\n");
+}
+
+void doit(void)
+{
+ int ret;
+ struct sockaddr_in saddr;
+ socklen_t addrlen;
+ int listener;
+ int fd;
+
+ signal(SIGPIPE, SIG_IGN);
+
+ listener = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
+ if (listener == -1)
+ fail("error in socket(): %s\n", strerror(errno));
+
+ memset(&saddr, 0, sizeof(saddr));
+ saddr.sin_family = AF_INET;
+ saddr.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
+ saddr.sin_port = 0;
+
+ ret = bind(listener, (struct sockaddr*)&saddr, sizeof(saddr));
+ if (ret == -1)
+ fail("error in bind(): %s\n", strerror(errno));
+
+ addrlen = sizeof(saddr);
+ ret = getsockname(listener, (struct sockaddr*)&saddr, &addrlen);
+ if (ret == -1)
+ fail("error in getsockname(): %s\n", strerror(errno));
+
+ child = fork();
+ if (child < 0) {
+ perror("fork");
+ fail("fork");
+ exit(1);
+ }
+
+ if (child) {
+ int status;
+ /* parent */
+
+ ret = listen(listener, 1);
+ if (ret == -1)
+ fail("error in listen(): %s\n", strerror(errno));
+
+ fd = accept(listener, NULL, NULL);
+ if (fd == -1)
+ fail("error in accept: %s\n", strerror(errno));
+
+ server(fd);
+
+ wait(&status);
+ if (WEXITSTATUS(status) != 0)
+ fail("Child died with status %d\n",
+ WEXITSTATUS(status));
+ } else {
+ fd = socket(AF_INET, SOCK_STREAM, 0);
+
+ client(fd, (struct sockaddr*)&saddr, addrlen);
+ exit(0);
+ }
+}
+
+#endif /* _WIN32 */
projects / thirdparty / gnutls.git / commitdiff
