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Diffstat (limited to '')
| -rw-r--r-- | tests/system-override-sig-tls.c | 200 |
1 files changed, 200 insertions, 0 deletions
diff --git a/tests/system-override-sig-tls.c b/tests/system-override-sig-tls.c new file mode 100644 index 0000000..7258808 --- /dev/null +++ b/tests/system-override-sig-tls.c @@ -0,0 +1,200 @@ +/* + * Copyright (C) 2015-2021 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 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 <assert.h> +#include <stdbool.h> +#include <stdint.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <errno.h> +#include <gnutls/gnutls.h> +#include "utils.h" + +#define SKIP16(pos, total) { \ + uint16_t _s; \ + if (pos+2 > total) fail("error\n"); \ + _s = (msg->data[pos] << 8) | msg->data[pos+1]; \ + if ((size_t)(pos+2+_s) > total) fail("error\n"); \ + pos += 2+_s; \ + } + +#define SKIP8(pos, total) { \ + uint8_t _s; \ + if (pos+1 > total) fail("error\n"); \ + _s = msg->data[pos]; \ + if ((size_t)(pos+1+_s) > total) fail("error\n"); \ + pos += 1+_s; \ + } + +#define HANDSHAKE_SESSION_ID_POS 34 + +#include "eagain-common.h" +#include "cert-common.h" + +/* This tests whether the client omits signature algorithms marked as insecure, + * from the signature_algorithms extension. + */ + +const char *side; + +static void tls_log_func(int level, const char *str) +{ + fprintf(stderr, "%s|<%d>| %s", side, level, str); +} + +#define PRIO "NORMAL:-VERS-ALL:+VERS-TLS1.3:-SIGN-ALL:" \ + "+SIGN-RSA-PSS-RSAE-SHA256:+SIGN-RSA-PSS-RSAE-SHA384" +/* rsa_pss_rsae_sha384 */ +#define SIGALGS_EXP "\x00\x02\x08\x05" + +static int +ext_callback(void *ctx, unsigned tls_id, + const unsigned char *data, unsigned size) +{ + if (tls_id == 13) { /* signature algorithms */ + if (size != sizeof(SIGALGS_EXP) - 1) { + fail("invalid signature_algorithms length: %u != 4\n", + size); + } + if (memcmp(data, SIGALGS_EXP, sizeof(SIGALGS_EXP) - 1) != 0) { + fail("invalid signature_algorithms\n"); + } + } + return 0; +} + +static int +handshake_callback(gnutls_session_t session, unsigned int htype, + unsigned post, unsigned int incoming, + const gnutls_datum_t *msg) +{ + assert(post); + + if (!incoming && htype == GNUTLS_HANDSHAKE_CLIENT_HELLO) { + int ret; + unsigned pos; + gnutls_datum_t mmsg; + + assert(msg->size >= HANDSHAKE_SESSION_ID_POS); + pos = HANDSHAKE_SESSION_ID_POS; + SKIP8(pos, msg->size); + SKIP16(pos, msg->size); + SKIP8(pos, msg->size); + + mmsg.data = &msg->data[pos]; + mmsg.size = msg->size - pos; + ret = gnutls_ext_raw_parse(NULL, ext_callback, &mmsg, 0); + assert(ret >= 0); + } + return 0; +} + +void doit(void) +{ + int ret; + /* 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; + + global_init(); + + /* General init. */ + gnutls_global_set_log_function(tls_log_func); + if (debug) + gnutls_global_set_log_level(6); + + /* Init server */ + gnutls_certificate_allocate_credentials(&serverx509cred); + gnutls_certificate_set_x509_key_mem(serverx509cred, + &server2_cert, &server2_key, + GNUTLS_X509_FMT_PEM); + + gnutls_init(&server, GNUTLS_SERVER); + gnutls_credentials_set(server, GNUTLS_CRD_CERTIFICATE, + serverx509cred); + + 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_pull_timeout_function(server, + server_pull_timeout_func); + gnutls_transport_set_ptr(server, server); + + /* Init client */ + ret = gnutls_certificate_allocate_credentials(&clientx509cred); + if (ret < 0) + exit(1); + + ret = gnutls_certificate_set_x509_trust_mem(clientx509cred, &ca2_cert, GNUTLS_X509_FMT_PEM); + if (ret < 0) + exit(1); + + ret = gnutls_init(&client, GNUTLS_CLIENT); + if (ret < 0) + exit(1); + + ret = gnutls_credentials_set(client, GNUTLS_CRD_CERTIFICATE, + clientx509cred); + 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_pull_timeout_function(client, + client_pull_timeout_func); + gnutls_transport_set_ptr(client, client); + + gnutls_handshake_set_hook_function(client, + GNUTLS_HANDSHAKE_ANY, + GNUTLS_HOOK_POST, + handshake_callback); + + HANDSHAKE(client, server); + + gnutls_bye(client, GNUTLS_SHUT_RDWR); + gnutls_bye(server, GNUTLS_SHUT_RDWR); + + gnutls_deinit(client); + gnutls_deinit(server); + + gnutls_certificate_free_credentials(serverx509cred); + gnutls_certificate_free_credentials(clientx509cred); + + gnutls_global_deinit(); + + reset_buffers(); +} |