1 files changed, 314 insertions, 0 deletions
diff --git a/tests/session-tickets-missing.c b/tests/session-tickets-missing.c
new file mode 100644
index 0000000..aaa1cae
--- /dev/null
+++ b/tests/session-tickets-missing.c
@@ -0,0 +1,314 @@
+/*
+ * Copyright (C) 2016-2018 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 Lesser General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>
+ *
+ */
+
+#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 <time.h>
+#include <gnutls/gnutls.h>
+#include <gnutls/dtls.h>
+#include <signal.h>
+#include <assert.h>
+
+#include "cert-common.h"
+#include "utils.h"
+
+/* This program tests that handshakes do not include a session ticket
+ * if the flag GNUTLS_NO_TICKETS is specified under TLS 1.2.
+ *
+ * Under TLS 1.3 it verifies that not enabling session tickets doesn't
+ * result in a ticket being sent.
+ */
+
+static time_t mytime(time_t * t)
+{
+	time_t then = 1464610242;
+	if (t)
+		*t = then;
+
+	return then;
+}
+
+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);
+}
+
+static int sent = 0;
+
+static int handshake_callback(gnutls_session_t session, unsigned int htype,
+	unsigned post, unsigned int incoming, const gnutls_datum_t *msg)
+{
+	if (htype != GNUTLS_HANDSHAKE_NEW_SESSION_TICKET)
+		return 0;
+	fail("sent session ticket\n");
+	sent = 1;
+	return 0;
+}
+
+#define MAX_BUF 1024
+
+static void client(int fd, const char *prio, unsigned int flags)
+{
+	int ret;
+	gnutls_certificate_credentials_t x509_cred;
+	gnutls_session_t session;
+	/* Need to enable anonymous KX specifically. */
+
+	flags |= GNUTLS_CLIENT;
+
+	gnutls_global_set_time_function(mytime);
+	global_init();
+
+	if (debug) {
+		gnutls_global_set_log_function(client_log_func);
+		gnutls_global_set_log_level(7);
+	}
+
+	gnutls_certificate_allocate_credentials(&x509_cred);
+
+	/* Initialize TLS session
+	 */
+	gnutls_init(&session, flags);
+
+	assert(gnutls_priority_set_direct(session, prio, NULL)>=0);
+
+	/* put the anonymous credentials to the current session
+	 */
+	gnutls_credentials_set(session, GNUTLS_CRD_CERTIFICATE, x509_cred);
+
+	gnutls_transport_set_int(session, fd);
+
+	/* Perform the TLS handshake
+	 */
+	do {
+		ret = gnutls_handshake(session);
+	}
+	while (ret < 0 && gnutls_error_is_fatal(ret) == 0);
+
+	if (ret == GNUTLS_E_UNSUPPORTED_SIGNATURE_ALGORITHM) {
+		/* success */
+		goto end;
+	}
+
+	if (ret < 0) {
+		fail("client: Handshake failed: %s\n", gnutls_strerror(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)));
+
+	gnutls_bye(session, GNUTLS_SHUT_WR);
+
+      end:
+
+	close(fd);
+
+	gnutls_deinit(session);
+
+	gnutls_certificate_free_credentials(x509_cred);
+
+	gnutls_global_deinit();
+}
+
+
+/* These are global */
+pid_t child;
+
+static void server(int fd, const char *prio, unsigned int flags)
+{
+	int ret;
+	char buffer[MAX_BUF + 1];
+	gnutls_session_t session;
+	gnutls_certificate_credentials_t x509_cred;
+	gnutls_datum_t skey = {NULL, 0};
+
+	flags |= GNUTLS_SERVER;
+
+	/* this must be called once in the program
+	 */
+	global_init();
+	memset(buffer, 0, sizeof(buffer));
+
+	if (debug) {
+		gnutls_global_set_log_function(server_log_func);
+		gnutls_global_set_log_level(4711);
+	}
+
+	assert(gnutls_certificate_allocate_credentials(&x509_cred)>=0);
+	assert(gnutls_certificate_set_x509_key_mem(x509_cred, &server_cert,
+					    &server_key,
+					    GNUTLS_X509_FMT_PEM)>=0);
+
+	assert(gnutls_init(&session, flags)>=0);
+
+	if (!(flags & GNUTLS_NO_TICKETS)) {
+		assert(gnutls_session_ticket_key_generate(&skey)>=0);
+		assert(gnutls_session_ticket_enable_server(session, &skey) >= 0);
+	}
+
+	gnutls_handshake_set_hook_function(session, GNUTLS_HANDSHAKE_NEW_SESSION_TICKET,
+					   GNUTLS_HOOK_POST,
+					   handshake_callback);
+
+	/* avoid calling all the priority functions, since the defaults
+	 * are adequate.
+	 */
+	assert(gnutls_priority_set_direct(session, prio, NULL)>=0);
+
+	gnutls_credentials_set(session, GNUTLS_CRD_CERTIFICATE, x509_cred);
+
+	gnutls_transport_set_int(session, fd);
+
+	do {
+		ret = gnutls_handshake(session);
+	} while (ret < 0 && gnutls_error_is_fatal(ret) == 0);
+	if (ret < 0) {
+		/* failure is expected here */
+		goto end;
+	}
+
+	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)));
+
+	if (sent != 0) {
+		fail("new session ticket was sent\n");
+		exit(1);
+	}		
+
+	/* do not wait for the peer to close the connection.
+	 */
+	gnutls_bye(session, GNUTLS_SHUT_WR);
+
+ end:
+	close(fd);
+	gnutls_deinit(session);
+	gnutls_free(skey.data);
+
+	gnutls_certificate_free_credentials(x509_cred);
+
+	gnutls_global_deinit();
+
+	if (debug)
+		success("server: finished\n");
+}
+
+static void ch_handler(int sig)
+{
+	return;
+}
+
+static
+void start2(const char *prio, const char *sprio, unsigned int flags, unsigned int sflags)
+{
+	int fd[2];
+	int ret, status = 0;
+
+	success("trying %s\n", prio);
+
+	sent = 0;
+	signal(SIGCHLD, ch_handler);
+	signal(SIGPIPE, SIG_IGN);
+
+	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], sprio, sflags);
+		waitpid(child, &status, 0);
+		check_wait_status(status);
+	} else {
+		close(fd[0]);
+		client(fd[1], prio, flags);
+		exit(0);
+	}
+
+	return;
+}
+
+static
+void start(const char *prio, unsigned int flags)
+{
+	start2(prio, prio, GNUTLS_NO_TICKETS, flags);
+}
+
+void doit(void)
+{
+	start("NORMAL:-VERS-ALL:+VERS-TLS1.2", 0);
+	/* Under TLS 1.3 session tickets are not negotiated; they are
+	 * always sent unless server sets GNUTLS_NO_TICKETS... */
+	start("NORMAL:-VERS-ALL:+VERS-TLS1.3", GNUTLS_NO_TICKETS);
+	/* ...or there is no overlap between PSK key exchange modes */
+	start2("NORMAL:-VERS-ALL:+VERS-TLS1.3:+PSK:-DHE-PSK", "NORMAL:-VERS-ALL:+VERS-TLS1.3", 0, 0);
+	start("NORMAL", GNUTLS_NO_TICKETS);
+}
+
+#endif				/* _WIN32 */