1 files changed, 318 insertions, 0 deletions
diff --git a/tests/tls13/hello_retry_request_resume.c b/tests/tls13/hello_retry_request_resume.c
new file mode 100644
index 0000000000..6672bc7a9c
--- /dev/null
+++ b/tests/tls13/hello_retry_request_resume.c
@@ -0,0 +1,318 @@
+/*
+ * Copyright (C) 2017-2020 Red Hat, Inc.
+ *
+ * Author: Nikos Mavrogiannopoulos, Daiki Ueno
+ *
+ * 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 <gnutls/gnutls.h>
+#include <signal.h>
+#include <assert.h>
+
+#include "../lib/handshake-defs.h"
+#include "cert-common.h"
+#include "utils.h"
+
+/* This program tests whether the certificate seen in Post Handshake Auth
+ * is found in a resumed session under TLS 1.3.
+ */
+
+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 ticket_callback(gnutls_session_t session, unsigned int htype,
+			   unsigned post, unsigned int incoming, const gnutls_datum_t *msg)
+{
+	gnutls_datum *d;
+	int ret;
+
+	assert(htype == GNUTLS_HANDSHAKE_NEW_SESSION_TICKET);
+
+	d = gnutls_session_get_ptr(session);
+
+	if (post == GNUTLS_HOOK_POST) {
+		if (d->data)
+			gnutls_free(d->data);
+		ret = gnutls_session_get_data2(session, d);
+		assert(ret >= 0);
+		assert(d->size > 4);
+
+		return 0;
+	}
+
+	return 0;
+}
+
+static void client(int fd)
+{
+	int ret;
+	gnutls_session_t session;
+	unsigned try = 0;
+	gnutls_datum_t session_data = {NULL, 0};
+	gnutls_certificate_credentials_t x509_cred;
+
+	global_init();
+
+	if (debug) {
+		gnutls_global_set_log_function(client_log_func);
+		gnutls_global_set_log_level(7);
+	}
+
+	assert(gnutls_certificate_allocate_credentials(&x509_cred)>=0);
+
+ retry:
+	/* Initialize TLS session
+	 */
+	assert(gnutls_init(&session, GNUTLS_CLIENT)>=0);
+
+	gnutls_handshake_set_timeout(session, 20 * 1000);
+
+	ret = gnutls_priority_set_direct(session, "NORMAL:-VERS-ALL:+VERS-TLS1.3:-GROUP-ALL:+GROUP-SECP256R1:+GROUP-X25519", NULL);
+	if (ret < 0)
+		fail("cannot set TLS 1.3 priorities\n");
+
+
+	if (try == 0) {
+		gnutls_session_set_ptr(session, &session_data);
+		gnutls_handshake_set_hook_function(session, GNUTLS_HANDSHAKE_NEW_SESSION_TICKET,
+						   GNUTLS_HOOK_BOTH,
+						   ticket_callback);
+	} else {
+		assert(gnutls_session_set_data(session, session_data.data, session_data.size) >= 0);
+	}
+
+	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 != 0)
+		fail("handshake failed: %s\n", gnutls_strerror(ret));
+
+	do {
+		ret = gnutls_bye(session, GNUTLS_SHUT_RDWR);
+	} while(ret == GNUTLS_E_AGAIN || ret == GNUTLS_E_INTERRUPTED);
+
+	if (ret != 0) {
+		fail("error in recv: %s\n", gnutls_strerror(ret));
+	}
+
+	gnutls_deinit(session);
+
+	if (try == 0) {
+		try++;
+		goto retry;
+	}
+
+	gnutls_free(session_data.data);
+	close(fd);
+	gnutls_certificate_free_credentials(x509_cred);
+
+	gnutls_global_deinit();
+}
+
+#define HANDSHAKE_SESSION_ID_POS 34
+
+static int client_hello_callback(gnutls_session_t session, unsigned int htype,
+				 unsigned post, unsigned int incoming,
+				 const gnutls_datum_t *msg)
+{
+	gnutls_datum *d;
+
+	assert(post == GNUTLS_HOOK_POST);
+	assert(msg->size >= HANDSHAKE_SESSION_ID_POS + 1);
+
+	d = gnutls_session_get_ptr(session);
+	d->size = msg->data[HANDSHAKE_SESSION_ID_POS];
+	d->data = gnutls_malloc(d->size);
+	memcpy(d->data, &msg->data[HANDSHAKE_SESSION_ID_POS], d->size);
+
+	return 0;
+}
+
+static void server(int fd)
+{
+	int ret;
+	gnutls_session_t session;
+	unsigned try = 0;
+	gnutls_certificate_credentials_t x509_cred;
+	gnutls_datum_t skey;
+	gnutls_datum_t session_id = {NULL, 0};
+	gnutls_datum_t retry_session_id = {NULL, 0};
+
+	/* this must be called once in the program
+	 */
+	global_init();
+
+	assert(gnutls_session_ticket_key_generate(&skey)>=0);
+
+	if (debug) {
+		gnutls_global_set_log_function(server_log_func);
+		gnutls_global_set_log_level(4711);
+	}
+
+	gnutls_certificate_allocate_credentials(&x509_cred);
+	gnutls_certificate_set_x509_key_mem(x509_cred, &server_cert,
+					    &server_key,
+					    GNUTLS_X509_FMT_PEM);
+
+ retry:
+	assert(gnutls_init(&session, GNUTLS_SERVER)>=0);
+
+	assert(gnutls_session_ticket_enable_server(session, &skey) >= 0);
+	gnutls_handshake_set_timeout(session, 20 * 1000);
+
+	/* server only supports x25519, client advertises secp256r1 */
+	assert(gnutls_priority_set_direct(session, "NORMAL:-VERS-ALL:+VERS-TLS1.3:-GROUP-ALL:+GROUP-X25519", NULL)>=0);
+
+	gnutls_credentials_set(session, GNUTLS_CRD_CERTIFICATE, x509_cred);
+
+	gnutls_transport_set_int(session, fd);
+
+	if (try == 0) {
+		gnutls_session_set_ptr(session, &session_id);
+	} else {
+		gnutls_session_set_ptr(session, &retry_session_id);
+	}
+
+	gnutls_handshake_set_hook_function(session, GNUTLS_HANDSHAKE_CLIENT_HELLO,
+					   GNUTLS_HOOK_POST,
+					   client_hello_callback);
+
+	do {
+		ret = gnutls_handshake(session);
+	} while (ret < 0 && gnutls_error_is_fatal(ret) == 0);
+
+	if (ret != 0)
+		fail("handshake failed: %s\n", gnutls_strerror(ret));
+
+	if (try > 0) {
+		assert(gnutls_session_is_resumed(session) != 0);
+
+		/* Check that the same (non-empty) session ID is used in both
+		 * initial and resumption handshakes.  This assumes
+		 * TLS13_APPENDIX_D4 is set to 1 in lib/handshake-defs.h. Once
+		 * it's turned off, both session IDs should be empty. */
+		if (session_id.size == 0 ||
+		    session_id.size != retry_session_id.size ||
+		    memcmp(session_id.data, retry_session_id.data, session_id.size)) {
+			fail("session ids are different after resumption: %u, %u\n",
+			     session_id.size, retry_session_id.size);
+		}
+	}
+
+	do {
+		ret = gnutls_bye(session, GNUTLS_SHUT_RDWR);
+	} while(ret == GNUTLS_E_AGAIN || ret == GNUTLS_E_INTERRUPTED);
+	gnutls_deinit(session);
+
+	if (try == 0) {
+		try++;
+		goto retry;
+	}
+
+	gnutls_free(skey.data);
+	close(fd);
+	gnutls_certificate_free_credentials(x509_cred);
+	gnutls_free(session_id.data);
+	gnutls_free(retry_session_id.data);
+
+	gnutls_global_deinit();
+
+	if (debug)
+		success("server: client/server hello were verified\n");
+}
+
+static void ch_handler(int sig)
+{
+	int status = 0;
+	wait(&status);
+	check_wait_status(status);
+	return;
+}
+
+void doit(void)
+{
+	int fd[2];
+	int ret;
+	pid_t child;
+
+	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]);
+		kill(child, SIGTERM);
+	} else {
+		close(fd[0]);
+		client(fd[1]);
+		exit(0);
+	}
+
+}
+#endif				/* _WIN32 */