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author | Nikos Mavrogiannopoulos <nmav@redhat.com> | 2017-10-03 08:41:51 +0200 |
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committer | Nikos Mavrogiannopoulos <nmav@redhat.com> | 2017-11-14 15:00:33 +0100 |
commit | c3af99f35624e57ab5edf2f915088b8a812a3b72 (patch) | |
tree | f4a09cf2a27ac7b16c8e2d3a10cca17f5b839ae8 | |
parent | bf4f76933e57fdcf844a3a174367bb3ecd5e48d1 (diff) | |
download | gnutls-c3af99f35624e57ab5edf2f915088b8a812a3b72.tar.gz |
tests: check the correct handling of cookie extension in client side
Resolves #218
Signed-off-by: Nikos Mavrogiannopoulos <nmav@redhat.com>
-rw-r--r-- | tests/Makefile.am | 3 | ||||
-rw-r--r-- | tests/tls13/cookie.c | 264 |
2 files changed, 266 insertions, 1 deletions
diff --git a/tests/Makefile.am b/tests/Makefile.am index 37d515a021..6d1a106e2c 100644 --- a/tests/Makefile.am +++ b/tests/Makefile.am @@ -92,7 +92,8 @@ libutils_la_LIBADD = ../lib/libgnutls.la indirect_tests = ctests = tls13/supported_versions tls13/tls12-no-tls13-exts \ - tls13/post-handshake-with-cert tls13/post-handshake-without-cert + tls13/post-handshake-with-cert tls13/post-handshake-without-cert \ + tls13/cookie ctests += mini-record-2 simple gc set_pkcs12_cred cert certuniqueid tls-neg-ext-key \ mpi certificate_set_x509_crl dn parse_ca x509-dn x509-dn-decode record-sizes \ diff --git a/tests/tls13/cookie.c b/tests/tls13/cookie.c new file mode 100644 index 0000000000..8cab085490 --- /dev/null +++ b/tests/tls13/cookie.c @@ -0,0 +1,264 @@ +/* + * Copyright (C) 2017 Red Hat, Inc. + * + * Author: Thierry Quemerais, 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 Lesser General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/> + */ + +/* This program tests whether a cookie sent by the server is repeated + * by the gnutls client. */ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#include <stdio.h> +#include <stdlib.h> + +#if defined(_WIN32) + +/* socketpair isn't supported on Win32. */ +int main(int argc, char **argv) +{ + exit(77); +} + +#else + +#include <string.h> +#include <sys/types.h> +#include <sys/socket.h> +#if !defined(_WIN32) +#include <sys/wait.h> +#include <signal.h> +#endif +#include <unistd.h> +#include <gnutls/gnutls.h> +#include <assert.h> + +#include "utils.h" +#include "cert-common.h" + +const char *side = ""; + +static void tls_log_func(int level, const char *str) +{ + fprintf(stderr, "%s|<%d>| %s", side, level, str); +} + +static int TLSEXT_TYPE_server_sent = 0; +static int TLSEXT_TYPE_server_received = 0; + +static const unsigned char ext_data[] = +{ + 0x00, + 0x03, + 0xFE, + 0xED, + 0xFF +}; + +static int ext_recv_server_cookie(gnutls_session_t session, const unsigned char *buf, size_t buflen) +{ + if (buflen != sizeof(ext_data)) + fail("ext_recv_server_params: Invalid input buffer length\n"); + + if (memcmp(buf, ext_data, sizeof(ext_data)) != 0) + fail("ext_recv_server_params: Invalid input buffer data\n"); + + TLSEXT_TYPE_server_received = 1; + + return 0; //Success +} + +static int ext_send_server_cookie(gnutls_session_t session, gnutls_buffer_t extdata) +{ + if (gnutls_ext_get_current_msg(session) == GNUTLS_EXT_FLAG_HRR) { + TLSEXT_TYPE_server_sent = 1; + + gnutls_buffer_append_data(extdata, ext_data, sizeof(ext_data)); + return sizeof(ext_data); + } + return 0; +} + +static void client(int sd) +{ + int ret; + gnutls_session_t session; + gnutls_certificate_credentials_t clientx509cred; + + global_init(); + gnutls_global_set_log_function(tls_log_func); + if (debug) + gnutls_global_set_log_level(4711); + + side = "client"; + + gnutls_certificate_allocate_credentials(&clientx509cred); + + /* Initialize TLS session + */ + gnutls_init(&session, GNUTLS_CLIENT); + + /* Use default priorities */ + assert(gnutls_priority_set_direct(session, "NORMAL:-VERS-ALL:+VERS-TLS1.3", + NULL)>=0); + + /* put the anonymous credentials to the current session + */ + gnutls_credentials_set(session, GNUTLS_CRD_CERTIFICATE, + clientx509cred); + + gnutls_transport_set_int(session, sd); + gnutls_handshake_set_timeout(session, 20 * 1000); + + /* Perform the TLS handshake + */ + ret = gnutls_handshake(session); + + if (ret < 0) { + fail("client: Handshake failed: %s\n", gnutls_strerror(ret)); + goto end; + } else { + if (debug) + success("client: Handshake was completed\n"); + } + + gnutls_bye(session, GNUTLS_SHUT_WR); + +end: + close(sd); + + gnutls_deinit(session); + + gnutls_certificate_free_credentials(clientx509cred); + + gnutls_global_deinit(); +} + +static void server(int sd) +{ + gnutls_certificate_credentials_t serverx509cred; + int ret; + gnutls_session_t session; + + /* this must be called once in the program + */ + global_init(); + gnutls_global_set_log_function(tls_log_func); + if (debug) + gnutls_global_set_log_level(4711); + + side = "server"; + + gnutls_certificate_allocate_credentials(&serverx509cred); + gnutls_certificate_set_x509_key_mem(serverx509cred, + &server_cert, &server_key, + GNUTLS_X509_FMT_PEM); + + gnutls_init(&session, GNUTLS_SERVER); + + + /* force a hello retry request by disabling all the groups that are + * enabled by default. */ + assert(gnutls_priority_set_direct(session, + "NORMAL:-VERS-ALL:+VERS-TLS1.3:" + "-GROUP-SECP256R1:-GROUP-X25519:-GROUP-FFDHE2048", + NULL)>=0); + + gnutls_credentials_set(session, GNUTLS_CRD_CERTIFICATE, + serverx509cred); + + ret = gnutls_session_ext_register(session, "cookie_server", 44, GNUTLS_EXT_TLS, ext_recv_server_cookie, ext_send_server_cookie, + NULL, NULL, NULL, + GNUTLS_EXT_FLAG_CLIENT_HELLO|GNUTLS_EXT_FLAG_HRR|GNUTLS_EXT_FLAG_OVERRIDE_INTERNAL|GNUTLS_EXT_FLAG_IGNORE_CLIENT_REQUEST); + if (ret != 0) + fail("server: cannot register: %s", gnutls_strerror(ret)); + + gnutls_transport_set_int(session, sd); + gnutls_handshake_set_timeout(session, 20 * 1000); + + ret = gnutls_handshake(session); + if (ret < 0) { + fail("server: Handshake has failed: %s\n\n", + gnutls_strerror(ret)); + goto end; + } + if (debug) + success("server: Handshake was completed\n"); + + if (TLSEXT_TYPE_server_sent != 1) + fail("server: extension not properly sent\n"); + + if (TLSEXT_TYPE_server_received != 1) + fail("server: extension not properly received\n"); + + /* do not wait for the peer to close the connection. + */ + gnutls_bye(session, GNUTLS_SHUT_WR); + +end: + close(sd); + gnutls_deinit(session); + + gnutls_certificate_free_credentials(serverx509cred); + + gnutls_global_deinit(); + + if (debug) + success("server: finished\n"); +} + +void doit(void) +{ + pid_t child; + int sockets[2]; + int err; + + signal(SIGPIPE, SIG_IGN); + + err = socketpair(AF_UNIX, SOCK_STREAM, 0, sockets); + if (err == -1) { + perror("socketpair"); + fail("socketpair failed\n"); + return; + } + + TLSEXT_TYPE_server_sent = 0; + TLSEXT_TYPE_server_received = 0; + + child = fork(); + if (child < 0) { + perror("fork"); + fail("fork"); + return; + } + + if (child) { + int status; + /* parent */ + close(sockets[1]); + server(sockets[0]); + wait(&status); + } else { + close(sockets[0]); + client(sockets[1]); + } +} + +#endif /* _WIN32 */ |