--- /dev/null
+/*
+ * Copyright (C) 2017-2025 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>
+#include <stdint.h>
+
+#include <string.h>
+#include <gnutls/gnutls.h>
+#include <assert.h>
+
+#include "cert-common.h"
+#include "utils.h"
+#include "tls13/ext-parse.h"
+#include "eagain-common.h"
+
+/* This program exercises the case where a TLS 1.3 handshake ends up
+ * with HRR, and the first CH includes PSK while the 2nd CH omits
+ * it */
+
+const char *testname = "hello entry request";
+
+const char *side = "";
+
+#define myfail(fmt, ...) fail("%s: " fmt, testname, ##__VA_ARGS__)
+
+static void tls_log_func(int level, const char *str)
+{
+ fprintf(stderr, "%s|<%d>| %s", side, level, str);
+}
+
+struct ctx_st {
+ unsigned hrr_seen;
+ unsigned hello_counter;
+};
+
+static int pskfunc(gnutls_session_t session, const char *username,
+ gnutls_datum_t *key)
+{
+ if (debug)
+ printf("psk: username %s\n", username);
+ key->data = gnutls_malloc(4);
+ key->data[0] = 0xDE;
+ key->data[1] = 0xAD;
+ key->data[2] = 0xBE;
+ key->data[3] = 0xEF;
+ key->size = 4;
+ return 0;
+}
+
+static int hello_callback(gnutls_session_t session, unsigned int htype,
+ unsigned post, unsigned int incoming,
+ const gnutls_datum_t *msg)
+{
+ struct ctx_st *ctx = gnutls_session_get_ptr(session);
+ assert(ctx != NULL);
+
+ if (htype == GNUTLS_HANDSHAKE_HELLO_RETRY_REQUEST)
+ ctx->hrr_seen = 1;
+
+ if (htype == GNUTLS_HANDSHAKE_CLIENT_HELLO) {
+ if (post == GNUTLS_HOOK_POST)
+ ctx->hello_counter++;
+ else {
+ /* Unset the PSK credential to omit the extension */
+ gnutls_credentials_set(session, GNUTLS_CRD_PSK, NULL);
+ }
+ }
+
+ return 0;
+}
+
+void doit(void)
+{
+ int sret, cret;
+ gnutls_psk_server_credentials_t scred;
+ gnutls_psk_client_credentials_t ccred;
+ gnutls_certificate_credentials_t ccred2;
+ gnutls_session_t server, client;
+ /* Need to enable anonymous KX specifically. */
+ const gnutls_datum_t key = { (void *)"DEADBEEF", 8 };
+
+ struct ctx_st ctx;
+ memset(&ctx, 0, sizeof(ctx));
+
+ global_init();
+
+ gnutls_global_set_log_function(tls_log_func);
+ if (debug)
+ gnutls_global_set_log_level(9);
+
+ /* Init server */
+ assert(gnutls_psk_allocate_server_credentials(&scred) >= 0);
+ gnutls_psk_set_server_credentials_function(scred, pskfunc);
+
+ gnutls_init(&server, GNUTLS_SERVER);
+
+ assert(gnutls_priority_set_direct(
+ server,
+ "NORMAL:-VERS-ALL:+VERS-TLS1.3:-GROUP-ALL:+GROUP-X25519:+DHE-PSK",
+ NULL) >= 0);
+
+ gnutls_credentials_set(server, GNUTLS_CRD_PSK, 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 */
+ assert(gnutls_psk_allocate_client_credentials(&ccred) >= 0);
+ gnutls_psk_set_client_credentials(ccred, "test", &key,
+ GNUTLS_PSK_KEY_HEX);
+ assert(gnutls_certificate_allocate_credentials(&ccred2) >= 0);
+
+ assert(gnutls_init(&client, GNUTLS_CLIENT | GNUTLS_KEY_SHARE_TOP) >= 0);
+
+ gnutls_session_set_ptr(client, &ctx);
+
+ cret = gnutls_priority_set_direct(
+ client,
+ "NORMAL:-VERS-ALL:+VERS-TLS1.3:-GROUP-ALL:+GROUP-SECP256R1:+GROUP-X25519:+DHE-PSK",
+ NULL);
+ if (cret < 0)
+ myfail("cannot set TLS 1.3 priorities\n");
+
+ gnutls_credentials_set(client, GNUTLS_CRD_PSK, ccred);
+ gnutls_credentials_set(client, GNUTLS_CRD_CERTIFICATE, ccred2);
+ gnutls_transport_set_push_function(client, client_push);
+ gnutls_transport_set_pull_function(client, client_pull);
+ gnutls_transport_set_ptr(client, client);
+
+ gnutls_handshake_set_hook_function(client, GNUTLS_HANDSHAKE_ANY,
+ GNUTLS_HOOK_BOTH, hello_callback);
+
+ HANDSHAKE_EXPECT(client, server, GNUTLS_E_AGAIN,
+ GNUTLS_E_INSUFFICIENT_CREDENTIALS);
+
+ assert(ctx.hrr_seen != 0);
+
+ gnutls_bye(client, GNUTLS_SHUT_WR);
+ gnutls_bye(server, GNUTLS_SHUT_WR);
+
+ gnutls_deinit(client);
+ gnutls_deinit(server);
+
+ gnutls_psk_free_server_credentials(scred);
+ gnutls_psk_free_client_credentials(ccred);
+ gnutls_certificate_free_credentials(ccred2);
+
+ gnutls_global_deinit();
+ reset_buffers();
+}
projects / thirdparty / gnutls.git / commitdiff
