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Diffstat (limited to '')
| -rw-r--r-- | tests/rehandshake-switch-psk-id.c | 191 |
1 files changed, 191 insertions, 0 deletions
diff --git a/tests/rehandshake-switch-psk-id.c b/tests/rehandshake-switch-psk-id.c new file mode 100644 index 0000000..c8beec1 --- /dev/null +++ b/tests/rehandshake-switch-psk-id.c @@ -0,0 +1,191 @@ +/* + * Copyright (C) 2016 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 General Public License + * along with GnuTLS; if not, write to the Free Software Foundation, + * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA + */ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <errno.h> +#include <gnutls/gnutls.h> +#include "utils.h" +#include "eagain-common.h" + +/* This test checks whether the server switching certificates is detected + * by the client */ + +const char *side; + +static void tls_log_func(int level, const char *str) +{ + fprintf(stderr, "%s|<%d>| %s", side, level, str); +} + +#include "cert-common.h" + +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 void try(const char *prio, gnutls_kx_algorithm_t kx, unsigned allow_change) +{ + int ret; + /* Server stuff. */ + gnutls_psk_server_credentials_t serverpskcred; + gnutls_dh_params_t dh_params; + const gnutls_datum_t p3 = + { (unsigned char *) pkcs3, strlen(pkcs3) }; + gnutls_session_t server; + int sret = GNUTLS_E_AGAIN; + /* Client stuff. */ + gnutls_psk_client_credentials_t clientpskcred; + gnutls_psk_client_credentials_t clientpskcred2; + gnutls_session_t client; + const gnutls_datum_t key = { (void *) "DEADBEEF", 8 }; + int cret = GNUTLS_E_AGAIN; + + /* General init. */ + gnutls_global_set_log_function(tls_log_func); + if (debug) + gnutls_global_set_log_level(6); + + /* Init server */ + gnutls_psk_allocate_server_credentials(&serverpskcred); + + gnutls_psk_set_server_credentials_function(serverpskcred, + pskfunc); + + gnutls_dh_params_init(&dh_params); + gnutls_dh_params_import_pkcs3(dh_params, &p3, GNUTLS_X509_FMT_PEM); + gnutls_psk_set_server_dh_params(serverpskcred, dh_params); + + if (allow_change) + gnutls_init(&server, GNUTLS_SERVER|GNUTLS_ALLOW_ID_CHANGE); + else + gnutls_init(&server, GNUTLS_SERVER); + gnutls_credentials_set(server, GNUTLS_CRD_PSK, + serverpskcred); + + gnutls_priority_set_direct(server, + prio, + NULL); + gnutls_transport_set_push_function(server, server_push); + gnutls_transport_set_pull_function(server, server_pull); + gnutls_transport_set_ptr(server, server); + + /* Init client */ + + ret = gnutls_psk_allocate_client_credentials(&clientpskcred); + if (ret < 0) + exit(1); + + gnutls_psk_set_client_credentials(clientpskcred, "test1", &key, + GNUTLS_PSK_KEY_HEX); + + ret = gnutls_psk_allocate_client_credentials(&clientpskcred2); + if (ret < 0) + exit(1); + + gnutls_psk_set_client_credentials(clientpskcred2, "test2", &key, + GNUTLS_PSK_KEY_HEX); + + ret = gnutls_init(&client, GNUTLS_CLIENT); + if (ret < 0) + exit(1); + + ret = gnutls_credentials_set(client, GNUTLS_CRD_PSK, + clientpskcred); + if (ret < 0) + exit(1); + + ret = gnutls_priority_set_direct(client, prio, NULL); + if (ret < 0) + exit(1); + + 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 (gnutls_kx_get(client) != kx) { + fail("got unexpected key exchange algorithm: %s (expected %s)\n", + gnutls_kx_get_name(gnutls_kx_get(client)), + gnutls_kx_get_name(kx)); + exit(1); + } + + /* switch client's username and rehandshake */ + ret = gnutls_credentials_set(client, GNUTLS_CRD_PSK, + clientpskcred2); + if (ret < 0) + exit(1); + + if (allow_change) { + HANDSHAKE(client, server); + } else { + HANDSHAKE_EXPECT(client, server, GNUTLS_E_AGAIN, GNUTLS_E_SESSION_USER_ID_CHANGED); + } + + gnutls_deinit(client); + gnutls_deinit(server); + + gnutls_psk_free_server_credentials(serverpskcred); + gnutls_psk_free_client_credentials(clientpskcred); + gnutls_psk_free_client_credentials(clientpskcred2); + gnutls_dh_params_deinit(dh_params); +} + +void doit(void) +{ + global_init(); + + /* Allow change of ID */ + try("NORMAL:-VERS-ALL:+VERS-TLS1.2:-KX-ALL:+PSK", GNUTLS_KX_PSK, 0); + reset_buffers(); + try("NORMAL:-VERS-ALL:+VERS-TLS1.2:-KX-ALL:+DHE-PSK", GNUTLS_KX_DHE_PSK, 0); + reset_buffers(); + try("NORMAL:-VERS-ALL:+VERS-TLS1.2:-KX-ALL:+ECDHE-PSK", GNUTLS_KX_ECDHE_PSK, 0); + reset_buffers(); + + /* Prohibit (default) change of ID */ + try("NORMAL:-VERS-ALL:+VERS-TLS1.2:-KX-ALL:+PSK", GNUTLS_KX_PSK, 1); + reset_buffers(); + try("NORMAL:-VERS-ALL:+VERS-TLS1.2:-KX-ALL:+DHE-PSK", GNUTLS_KX_DHE_PSK, 1); + reset_buffers(); + try("NORMAL:-VERS-ALL:+VERS-TLS1.2:-KX-ALL:+ECDHE-PSK", GNUTLS_KX_ECDHE_PSK, 1); + reset_buffers(); + gnutls_global_deinit(); +} |