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Diffstat (limited to 'tests/psk-importer.c')
| -rw-r--r-- | tests/psk-importer.c | 216 |
1 files changed, 216 insertions, 0 deletions
diff --git a/tests/psk-importer.c b/tests/psk-importer.c new file mode 100644 index 0000000000..84c35338aa --- /dev/null +++ b/tests/psk-importer.c @@ -0,0 +1,216 @@ +/* + * Copyright (C) 2004-2012 Free Software Foundation, Inc. + * Copyright (C) 2013 Adam Sampson <ats@offog.org> + * Copyright (C) 2019 Free Software Foundation, Inc. + * Copyright (C) 2023 Red Hat, Inc. + * + * Author: Simon Josefsson, Ander Juaristi, 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 General Public License + * along with GnuTLS. If not, see <https://www.gnu.org/licenses/>. + */ + +/* This tests the external PSK importer interface (RFC 9258). */ +/* Parts copied from pskself.c. */ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#include <stdint.h> +#include <stdio.h> +#include <stdlib.h> + +#include <string.h> +#include <gnutls/gnutls.h> + +#include "utils.h" +#include "eagain-common.h" + +const char *side = ""; + +static void tls_log_func(int level, const char *str) +{ + fprintf(stderr, "%s|<%d>| %s", side, level, str); +} + +#define MAX_BUF 1024 +#define MSG "Hello TLS" + +static const gnutls_datum_t identity = { (unsigned char *)"\xCA\xFE\xCA\xFE", + 4 }; +static const gnutls_datum_t context = { (unsigned char *)"\xDE\xAD\xBE\xEF", + 4 }; + +static const uint8_t expected_imported_identity[] = { 0x00, 0x04, 0xca, 0xfe, + 0xca, 0xfe, 0x00, 0x04, + 0xde, 0xad, 0xbe, 0xef, + 0x03, 0x04, 0x00, 0x01 }; + +static int server_pskfunc(gnutls_session_t session, + const gnutls_datum_t *username, gnutls_datum_t *key, + gnutls_psk_key_flags *flags) +{ + gnutls_datum_t imported_identity = { NULL, 0 }; + + int ret; + + if (debug) + printf("psk: Got username with length %d\n", username->size); + + key->data = gnutls_malloc(4); + key->data[0] = 0xDE; + key->data[1] = 0xAD; + key->data[2] = 0xBE; + key->data[3] = 0xEF; + key->size = 4; + + ret = gnutls_psk_format_imported_identity(&identity, &context, + GNUTLS_TLS1_3, + GNUTLS_DIG_SHA256, + &imported_identity); + if (ret < 0) { + return -1; + } + + if (imported_identity.size != sizeof(expected_imported_identity) || + memcmp(imported_identity.data, expected_imported_identity, + imported_identity.size)) { + gnutls_free(imported_identity.data); + printf("Unexpected imported identity\n"); + return -1; + } + gnutls_free(imported_identity.data); + + if (flags) { + *flags = GNUTLS_PSK_KEY_EXT; + } + + return 0; +} + +static int client_pskfunc(gnutls_session_t session, gnutls_datum_t *username, + gnutls_datum_t *key, gnutls_psk_key_flags *flags) +{ + int ret; + + ret = gnutls_psk_format_imported_identity(&identity, &context, + GNUTLS_TLS1_3, + GNUTLS_DIG_SHA256, username); + if (ret < 0) { + return -1; + } + + key->data = gnutls_malloc(4); + key->data[0] = 0xDE; + key->data[1] = 0xAD; + key->data[2] = 0xBE; + key->data[3] = 0xEF; + key->size = 4; + + *flags = GNUTLS_PSK_KEY_EXT; + + return 0; +} + +static void run_test(const char *prio) +{ + /* Server stuff. */ + gnutls_psk_server_credentials_t server_pskcred; + gnutls_session_t server; + int sret; + + /* Client stuff. */ + gnutls_psk_client_credentials_t client_pskcred; + gnutls_session_t client; + int cret; + + char buffer[MAX_BUF + 1]; + int transferred = 0; + + gnutls_datum_t psk_username; + + success("%s\n", prio); + + gnutls_global_set_log_function(tls_log_func); + if (debug) + gnutls_global_set_log_level(4711); + + /* Init server */ + gnutls_psk_allocate_server_credentials(&server_pskcred); + gnutls_psk_set_server_credentials_function3(server_pskcred, + server_pskfunc); + gnutls_init(&server, GNUTLS_SERVER); + gnutls_priority_set_direct(server, prio, NULL); + gnutls_credentials_set(server, GNUTLS_CRD_PSK, server_pskcred); + 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_psk_allocate_client_credentials(&client_pskcred); + gnutls_psk_set_client_credentials_function3(client_pskcred, + client_pskfunc); + gnutls_init(&client, GNUTLS_CLIENT); + gnutls_priority_set_direct(client, prio, NULL); + gnutls_credentials_set(client, GNUTLS_CRD_PSK, client_pskcred); + 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("server: Handshake was completed\n"); + + if (gnutls_psk_server_get_username(server)) + fail("server: gnutls_psk_server_get_username() should have returned NULL\n"); + if (gnutls_psk_server_get_username2(server, &psk_username) < 0) + fail("server: Could not get PSK username\n"); + + if (psk_username.size != sizeof(expected_imported_identity) || + memcmp(psk_username.data, expected_imported_identity, + sizeof(expected_imported_identity))) + fail("server: Unexpected PSK username\n"); + + success("server: PSK username length: %d\n", psk_username.size); + } + + TRANSFER(client, server, MSG, strlen(MSG), buffer, MAX_BUF); + TRANSFER(server, client, MSG, strlen(MSG), buffer, MAX_BUF); + + gnutls_bye(server, GNUTLS_SHUT_WR); + gnutls_bye(client, GNUTLS_SHUT_WR); + + gnutls_deinit(server); + gnutls_deinit(client); + + gnutls_psk_free_server_credentials(server_pskcred); + gnutls_psk_free_client_credentials(client_pskcred); + + reset_buffers(); +} + +void doit(void) +{ + global_init(); + run_test("NORMAL:-VERS-ALL:+VERS-TLS1.3:+PSK"); + run_test( + "NORMAL:-VERS-ALL:+VERS-TLS1.3:-GROUP-ALL:+GROUP-FFDHE2048:+DHE-PSK"); + run_test( + "NORMAL:-VERS-ALL:+VERS-TLS1.3:-GROUP-ALL:+GROUP-SECP256R1:+ECDHE-PSK"); + + gnutls_global_deinit(); +} |