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/*
* Copyright (C) 2017-2022 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 <stdbool.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <gnutls/gnutls.h>
#include "cert-common.h"
#include "utils.h"
#include "tls13/ext-parse.h"
#include "eagain-common.h"
/* This program tests the scenario described at:
* https://gitlab.com/gnutls/gnutls/-/issues/1303
*
* - the server only supports one mode
* - the client follows server's preference with %SERVER_PRECEDENCE
* - the client provides two modes, but the first one is not the one the server
* supports
*
* Previously the server was not able to enable PSK (and thus session
* resumption) at all in this case and didn't send NewSessionTicket.
*/
const char *testname = "";
#define myfail(fmt, ...) \
fail("%s: "fmt, testname, ##__VA_ARGS__)
const char *side = "";
static void tls_log_func(int level, const char *str)
{
fprintf(stderr, "%s|<%d>| %s", side, level, str);
}
static int
new_session_ticket_callback(gnutls_session_t session, unsigned int htype,
unsigned post, unsigned int incoming,
const gnutls_datum_t *msg)
{
bool *new_session_ticket_sent =
gnutls_session_get_ptr(session);
*new_session_ticket_sent = true;
return 0;
}
#define MAX_BUF 1024
#define MSG "Hello TLS, and hi and how are you and more data here... and more... and even more and even more more data..."
static void start(const char *name, const char *prio, const char *sprio)
{
int sret, cret;
gnutls_certificate_credentials_t scred, ccred;
gnutls_session_t server, client;
gnutls_datum_t skey;
char buffer[MAX_BUF + 1];
int transferred = 0;
bool new_session_ticket_sent = false;
testname = name;
success("== test %s ==\n", testname);
global_init();
gnutls_global_set_log_function(tls_log_func);
if (debug)
gnutls_global_set_log_level(9);
/* Init server */
assert(gnutls_certificate_allocate_credentials(&scred) >= 0);
assert(gnutls_certificate_set_x509_key_mem(scred,
&server_cert,
&server_key,
GNUTLS_X509_FMT_PEM) >= 0);
gnutls_init(&server, GNUTLS_SERVER);
gnutls_handshake_set_hook_function(server,
GNUTLS_HANDSHAKE_NEW_SESSION_TICKET,
GNUTLS_HOOK_POST,
new_session_ticket_callback);
gnutls_session_set_ptr(server, &new_session_ticket_sent);
gnutls_priority_set_direct(server, sprio, NULL);
assert(gnutls_session_ticket_key_generate(&skey)>=0);
assert(gnutls_session_ticket_enable_server(server, &skey) >= 0);
gnutls_credentials_set(server, GNUTLS_CRD_CERTIFICATE, scred);
gnutls_transport_set_push_function(server, server_push);
gnutls_transport_set_pull_function(server, server_pull);
gnutls_transport_set_ptr(server, server);
/* Init client */
gnutls_certificate_allocate_credentials(&ccred);
assert(gnutls_certificate_set_x509_trust_mem
(ccred, &ca3_cert, GNUTLS_X509_FMT_PEM) >= 0);
gnutls_init(&client, GNUTLS_CLIENT);
cret = gnutls_priority_set_direct(client, prio, NULL);
if (cret < 0)
myfail("cannot set TLS 1.3 priorities\n");
/* put the anonymous credentials to the current session
*/
gnutls_credentials_set(client, GNUTLS_CRD_CERTIFICATE, ccred);
gnutls_transport_set_push_function(client, client_push);
gnutls_transport_set_pull_function(client, client_pull);
gnutls_transport_set_ptr(client, client);
HANDSHAKE(client, server);
if (debug)
success("Handshake established\n");
TRANSFER(client, server, MSG, strlen(MSG), buffer, MAX_BUF);
TRANSFER(server, client, MSG, strlen(MSG), buffer, MAX_BUF);
EMPTY_BUF(server, client, buffer, MAX_BUF);
if (!new_session_ticket_sent) {
fail("NewSessionTicket is not sent\n");
}
gnutls_bye(client, GNUTLS_SHUT_WR);
gnutls_bye(server, GNUTLS_SHUT_WR);
gnutls_deinit(client);
gnutls_deinit(server);
gnutls_certificate_free_credentials(scred);
gnutls_certificate_free_credentials(ccred);
gnutls_free(skey.data);
gnutls_global_deinit();
reset_buffers();
}
void doit(void)
{
start("server only supports PSK, client advertises ECDHE-PSK first",
"NORMAL:-VERS-ALL:+VERS-TLS1.3:+ECDHE-PSK:+PSK:%SERVER_PRECEDENCE",
"NORMAL:-VERS-ALL:+VERS-TLS1.3:+PSK");
}
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