1 files changed, 385 insertions, 0 deletions
diff --git a/tests/tls13/post-handshake-with-cert-ticket.c b/tests/tls13/post-handshake-with-cert-ticket.c
new file mode 100644
index 0000000..b19720f
--- /dev/null
+++ b/tests/tls13/post-handshake-with-cert-ticket.c
@@ -0,0 +1,385 @@
+/*
+ * Copyright (C) 2017-2018 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 <gnutls/gnutls.h>
+#include <gnutls/dtls.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 unsigned tickets_seen = 0;
+static int ticket_callback(gnutls_session_t session, unsigned int htype,
+			   unsigned post, unsigned int incoming, const gnutls_datum_t *msg)
+{
+	gnutls_datum *d;
+	static int counter = 0;
+	int ret;
+
+	assert(htype == GNUTLS_HANDSHAKE_NEW_SESSION_TICKET);
+
+	counter++;
+	if (counter <= TLS13_TICKETS_TO_SEND) /* ignore the default tickets sent */
+		return 0;
+
+	d = gnutls_session_get_ptr(session);
+
+	if (post == GNUTLS_HOOK_POST) {
+		tickets_seen++;
+		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, unsigned tickets)
+{
+	int ret;
+	gnutls_certificate_credentials_t x509_cred;
+	gnutls_session_t session;
+	char buf[64];
+	unsigned try = 0;
+	gnutls_datum_t session_data = {NULL, 0};
+
+	global_init();
+	tickets_seen = 0;
+
+	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|GNUTLS_POST_HANDSHAKE_AUTH)>=0);
+
+	gnutls_handshake_set_timeout(session, get_timeout());
+
+	ret = gnutls_priority_set_direct(session, "NORMAL:-VERS-ALL:+VERS-TLS1.3:+VERS-TLS1.2:+VERS-TLS1.0", 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));
+
+	if (try == 0) {
+		assert(gnutls_certificate_set_x509_key_mem(x509_cred, &cli_ca3_cert,
+							    &cli_ca3_key,
+							    GNUTLS_X509_FMT_PEM)>=0);
+
+		do {
+			ret = gnutls_record_recv(session, buf, sizeof(buf));
+		} while (ret == GNUTLS_E_AGAIN || ret == GNUTLS_E_INTERRUPTED);
+
+		if (ret != GNUTLS_E_REAUTH_REQUEST) {
+			fail("recv: unexpected error: %s\n", gnutls_strerror(ret));
+		}
+
+		if (debug)
+			success("received reauth request\n");
+		do {
+			ret = gnutls_reauth(session, 0);
+		} while (ret == GNUTLS_E_AGAIN || ret == GNUTLS_E_INTERRUPTED);
+
+		if (ret != 0)
+			fail("client: gnutls_reauth did not succeed as expected: %s\n", gnutls_strerror(ret));
+	} else {
+		assert(gnutls_session_is_resumed(session) != 0);
+	}
+
+	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));
+	}
+
+	assert(tickets_seen == tickets+1);
+
+	gnutls_deinit(session);
+
+	if (try == 0) {
+		try++;
+		goto retry;
+	}
+
+	close(fd);
+	gnutls_free(session_data.data);
+
+	gnutls_certificate_free_credentials(x509_cred);
+
+	gnutls_global_deinit();
+}
+
+static void compare(const gnutls_datum_t *der, const void *ipem)
+{
+	gnutls_datum_t pem = {(void*)ipem, strlen((char*)ipem)};
+	gnutls_datum_t new_der;
+	int ret;
+
+	ret = gnutls_pem_base64_decode2("CERTIFICATE", &pem, &new_der);
+	if (ret < 0) {
+		fail("error: %s\n", gnutls_strerror(ret));
+	}
+
+	if (der->size != new_der.size || memcmp(der->data, new_der.data, der->size) != 0) {
+		fail("error in %d: %s\n", __LINE__, "cert don't match");
+		exit(1);
+	}
+	gnutls_free(new_der.data);
+	return;
+}
+
+static void server(int fd, unsigned tickets)
+{
+	int ret;
+	gnutls_session_t session;
+	gnutls_certificate_credentials_t x509_cred;
+	unsigned clist_size;
+	gnutls_datum_t skey;
+	const gnutls_datum_t *clist;
+
+	/* 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);
+
+	assert(gnutls_init(&session, GNUTLS_SERVER|GNUTLS_POST_HANDSHAKE_AUTH)>=0);
+
+	assert(gnutls_session_ticket_enable_server(session, &skey) >= 0);
+	gnutls_handshake_set_timeout(session, get_timeout());
+
+	assert(gnutls_priority_set_direct(session, "NORMAL:+VERS-TLS1.3", 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)
+		fail("handshake failed: %s\n", gnutls_strerror(ret));
+
+	gnutls_certificate_server_set_request(session, GNUTLS_CERT_REQUIRE);
+
+	/* ask peer for re-authentication */
+	do {
+		ret = gnutls_reauth(session, 0);
+	} while (ret == GNUTLS_E_AGAIN || ret == GNUTLS_E_INTERRUPTED);
+
+	if (ret != 0)
+		fail("server: gnutls_reauth did not succeed as expected: %s\n", gnutls_strerror(ret));
+
+	if (tickets == 0) {
+		/* test whether the expected error code would be returned */
+		ret = gnutls_session_ticket_send(session, 0, 0);
+		assert(ret == GNUTLS_E_INVALID_REQUEST);
+	} else {
+		/* send tickets after re-auth */
+		do {
+			ret = gnutls_session_ticket_send(session, tickets, 0);
+		} while (ret == GNUTLS_E_AGAIN || ret == GNUTLS_E_INTERRUPTED);
+	}
+
+	do {
+		ret = gnutls_bye(session, GNUTLS_SHUT_RDWR);
+	} while(ret == GNUTLS_E_AGAIN || ret == GNUTLS_E_INTERRUPTED);
+	gnutls_deinit(session);
+
+	/* resume session
+	 */
+	assert(gnutls_init(&session, GNUTLS_SERVER|GNUTLS_POST_HANDSHAKE_AUTH)>=0);
+
+	assert(gnutls_session_ticket_enable_server(session, &skey) >= 0);
+	gnutls_handshake_set_timeout(session, get_timeout());
+	assert(gnutls_priority_set_direct(session, "NORMAL:+VERS-TLS1.3", 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)
+		fail("handshake failed: %s\n", gnutls_strerror(ret));
+
+	assert(gnutls_session_is_resumed(session) != 0);
+
+	/* check if cert is visible */
+	if (tickets > 0) {
+		clist = gnutls_certificate_get_peers(session, &clist_size);
+		assert(clist != NULL);
+		assert(clist_size > 0);
+
+		compare(&clist[0], cli_ca3_cert.data);
+	}
+
+	gnutls_bye(session, GNUTLS_SHUT_RDWR);
+	gnutls_deinit(session);
+
+	gnutls_free(skey.data);
+	close(fd);
+	gnutls_certificate_free_credentials(x509_cred);
+
+	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;
+}
+
+static void start(const char *name, unsigned tickets)
+{
+	int fd[2];
+	int ret;
+	pid_t child;
+
+	success("testing: %s\n", name);
+
+	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], tickets);
+		kill(child, SIGTERM);
+	} else {
+		close(fd[0]);
+		client(fd[1], tickets);
+		exit(0);
+	}
+
+}
+
+void doit(void)
+{
+	signal(SIGCHLD, ch_handler);
+	signal(SIGPIPE, SIG_IGN);
+
+	start("no ticket", 0);
+	start("single ticket", 1);
+	start("8 tickets", 8);
+	start("16 tickets", 16);
+}
+#endif				/* _WIN32 */