/* * 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 #endif #include #include #include #include #include #include "utils.h" #include "eagain-common.h" #include "cert-common.h" /* This program tests whether rehandshake without ext master secret works * even if ext master secret was used initially. * * Note that we do not fail gracefully and we simply continue as if * the extension is still valid. This violates the letter of RFC7627. */ const char *side = ""; static void tls_log_func(int level, const char *str) { fprintf(stderr, "%s|<%d>| %s", side, level, str); } static void try(unsigned onclient) { /* Server stuff. */ gnutls_certificate_credentials_t serverx509cred; gnutls_session_t server; int sret = GNUTLS_E_AGAIN; /* Client stuff. */ gnutls_certificate_credentials_t clientx509cred; gnutls_session_t client; int cret = GNUTLS_E_AGAIN; /* General init. */ global_init(); gnutls_global_set_log_function(tls_log_func); if (debug) gnutls_global_set_log_level(7); /* Init server */ gnutls_certificate_allocate_credentials(&serverx509cred); gnutls_certificate_set_x509_key_mem(serverx509cred, &server_cert, &server_key, GNUTLS_X509_FMT_PEM); gnutls_init(&server, GNUTLS_SERVER); gnutls_credentials_set(server, GNUTLS_CRD_CERTIFICATE, serverx509cred); gnutls_priority_set_direct(server, "NORMAL:-VERS-ALL:+VERS-TLS1.2", 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 */ gnutls_certificate_allocate_credentials(&clientx509cred); gnutls_init(&client, GNUTLS_CLIENT); gnutls_credentials_set(client, GNUTLS_CRD_CERTIFICATE, clientx509cred); gnutls_priority_set_direct(client, "NORMAL:-VERS-ALL:+VERS-TLS1.2", NULL); 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_session_ext_master_secret_status(server) == 0) { fail("%d: ext master secret was not detected by server\n", onclient); } if (gnutls_session_ext_master_secret_status(client) == 0) { fail("%d: ext master secret was not detected by client\n", onclient); } if ((gnutls_session_get_flags(server) & GNUTLS_SFLAGS_EXT_MASTER_SECRET) == 0) { fail("%d: ext master secret was not detected by server\n", onclient); } if ((gnutls_session_get_flags(client) & GNUTLS_SFLAGS_EXT_MASTER_SECRET) == 0) { fail("%d: ext master secret was not detected by client\n", onclient); } if (onclient) gnutls_priority_set_direct(client, "NORMAL:-VERS-ALL:+VERS-TLS1.2:%NO_SESSION_HASH", NULL); else gnutls_priority_set_direct(server, "NORMAL:-VERS-ALL:+VERS-TLS1.2:%NO_SESSION_HASH", NULL); sret = gnutls_rehandshake(server); if (debug) { tls_log_func(0, "gnutls_rehandshake (server)...\n"); tls_log_func(0, gnutls_strerror(sret)); tls_log_func(0, "\n"); } { ssize_t n; char b[1]; n = gnutls_record_recv(client, b, 1); if (n != GNUTLS_E_REHANDSHAKE) abort(); } if (onclient) { HANDSHAKE_EXPECT(client, server, GNUTLS_E_AGAIN, GNUTLS_E_DECRYPTION_FAILED); } else { HANDSHAKE_EXPECT(client, server, GNUTLS_E_AGAIN, GNUTLS_E_DECRYPTION_FAILED); } gnutls_deinit(client); gnutls_deinit(server); gnutls_certificate_free_credentials(serverx509cred); gnutls_certificate_free_credentials(clientx509cred); gnutls_global_deinit(); } void doit(void) { try(0); reset_buffers(); try(1); }