diff options
Diffstat (limited to 'tests/tls13/prf.c')
| -rw-r--r-- | tests/tls13/prf.c | 323 |
1 files changed, 323 insertions, 0 deletions
diff --git a/tests/tls13/prf.c b/tests/tls13/prf.c new file mode 100644 index 0000000000..16cca4c5e9 --- /dev/null +++ b/tests/tls13/prf.c @@ -0,0 +1,323 @@ +/* + * Copyright (C) 2015-2017 Red Hat, Inc. + * + * 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/> + */ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#include <stdio.h> +#include <stdlib.h> + +#if !defined(__linux__) || !defined(__GNUC__) + +int main(int argc, char **argv) +{ + exit(77); +} + +#else + +#include <string.h> +#include <sys/types.h> +#include <netinet/in.h> +#include <sys/socket.h> +#include <sys/wait.h> +#include <arpa/inet.h> +#include <unistd.h> +#include <gnutls/gnutls.h> +#include <gnutls/crypto.h> + +#include "cert-common.h" +#include "utils.h" + +static void terminate(void); + +/* This program tests whether the gnutls_prf() works as + * expected. + */ + +static void server_log_func(int level, const char *str) +{ + fprintf(stderr, "server|<%d>| %s", level, str); +} + +static void client_log_func(int level, const char *str) +{ + fprintf(stderr, "client|<%d>| %s", level, str); +} + +/* These are global */ +static pid_t child; + +static const +gnutls_datum_t hrnd = {(void*)"\x00\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 32}; +static const +gnutls_datum_t hsrnd = {(void*)"\x00\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 32}; + +int __attribute__ ((visibility ("protected"))) +gnutls_rnd(gnutls_rnd_level_t level, void *data, size_t len) +{ + memset(data, 0xff, len); + + /* Flip the first byte to avoid infinite loop in the RSA + * blinding code of Nettle */ + if (len > 0) + memset(data, 0x0, 1); + return 0; +} + +static void dump(const char *name, const uint8_t *data, unsigned data_size) +{ + unsigned i; + + fprintf(stderr, "%s", name); + for (i=0;i<data_size;i++) + fprintf(stderr, "\\x%.2x", (unsigned)data[i]); + fprintf(stderr, "\n"); +} + +#define TRY(label_size, label, extra_size, extra, size, exp) \ + { \ + ret = gnutls_prf_rfc5705(session, label_size, label, extra_size, extra, size, \ + (void*)key_material); \ + if (ret < 0) { \ + fprintf(stderr, "gnutls_prf_rfc5705: error in %d\n", __LINE__); \ + gnutls_perror(ret); \ + exit(1); \ + } \ + if (memcmp(key_material, exp, size) != 0) { \ + fprintf(stderr, "gnutls_prf_rfc5705: output doesn't match for '%s'\n", label); \ + dump("got ", key_material, size); \ + dump("expected ", exp, size); \ + exit(1); \ + } \ + } + +static void check_prfs(gnutls_session_t session) +{ + unsigned char key_material[512]; + int ret; + + TRY(13, "key expansion", 0, NULL, 34, (uint8_t*)"\xb1\xc3\x5e\x95\x9f\xf7\x5f\x91\x40\x85\xd7\xe8\xe7\x87\x0f\xb3\x78\xec\xbf\x40\x22\xcb\x24\x6e\x85\x91\xa4\xda\xa0\x48\xa5\xb9\x17\x65"); + TRY(6, "hello", 0, NULL, 31, (uint8_t*)"\x85\x18\x53\x95\xa8\x60\xa5\x75\xd9\xc3\x34\xa3\x45\xa4\x90\xf0\x9c\x3a\xe3\xcf\x9a\x56\x4c\xcc\xeb\xba\x62\x2f\x36\x68\x84"); + TRY(7, "context", 5, "abcd\xfa", 31, (uint8_t*)"\xf4\x49\x53\xf2\x8a\xcc\x59\x52\xa2\x29\x7d\xf4\x2f\x41\x92\x27\x6f\xc5\x1f\x52\xdb\x9a\xa5\x28\x33\x90\x28\x25\x52\x9f\x03"); + TRY(12, "null-context", 0, "", 31, (uint8_t*)"\x91\xb6\xe5\xaf\x3c\x7d\x75\x0a\x66\xe2\xd9\x3d\x57\x2c\x70\x73\x6f\xe2\x8f\x44\x5a\x22\x86\x46\x6b\xe9\x30\xc4\xf4\x0b\x7c"); +} + +static void client(int fd) +{ + gnutls_session_t session; + int ret; + gnutls_certificate_credentials_t clientx509cred; + const char *err; + /* Need to enable anonymous KX specifically. */ + + global_init(); + + if (debug) { + gnutls_global_set_log_function(client_log_func); + gnutls_global_set_log_level(4711); + } + + gnutls_certificate_allocate_credentials(&clientx509cred); + + /* Initialize TLS session + */ + gnutls_init(&session, GNUTLS_CLIENT); + + /* Use default priorities */ + ret = gnutls_priority_set_direct(session, + "NONE:+VERS-TLS1.3:+AES-256-GCM:+AEAD:+SIGN-RSA-PSS-SHA384:+GROUP-SECP256R1", + &err); + if (ret < 0) { + fail("client: priority set failed (%s): %s\n", + gnutls_strerror(ret), err); + exit(1); + } + + ret = gnutls_credentials_set(session, GNUTLS_CRD_CERTIFICATE, + clientx509cred); + if (ret < 0) + exit(1); + + gnutls_handshake_set_random(session, &hrnd); + gnutls_transport_set_int(session, fd); + + /* Perform the TLS handshake + */ + do { + ret = gnutls_handshake(session); + } + while (ret < 0 && gnutls_error_is_fatal(ret) == 0); + + if (ret < 0) { + fail("client: Handshake failed: %s\n", strerror(ret)); + exit(1); + } else { + if (debug) + success("client: Handshake was completed\n"); + } + + if (debug) + success("client: TLS version is: %s\n", + gnutls_protocol_get_name + (gnutls_protocol_get_version(session))); + + ret = gnutls_cipher_get(session); + if (ret != GNUTLS_CIPHER_AES_256_GCM) { + fprintf(stderr, "negotiated unexpected cipher: %s\n", gnutls_cipher_get_name(ret)); + exit(1); + } + + ret = gnutls_mac_get(session); + if (ret != GNUTLS_MAC_AEAD) { + fprintf(stderr, "negotiated unexpected mac: %s\n", gnutls_mac_get_name(ret)); + exit(1); + } + + check_prfs(session); + + gnutls_bye(session, GNUTLS_SHUT_WR); + + close(fd); + + gnutls_deinit(session); + + gnutls_certificate_free_credentials(clientx509cred); + + gnutls_global_deinit(); +} + +static void terminate(void) +{ + int status = 0; + + kill(child, SIGTERM); + wait(&status); + exit(1); +} + +static void server(int fd) +{ + int ret; + gnutls_session_t session; + gnutls_certificate_credentials_t serverx509cred; + + /* this must be called once in the program + */ + global_init(); + + if (debug) { + gnutls_global_set_log_function(server_log_func); + gnutls_global_set_log_level(4711); + } + + gnutls_certificate_allocate_credentials(&serverx509cred); + + gnutls_init(&session, GNUTLS_SERVER); + + /* avoid calling all the priority functions, since the defaults + * are adequate. + */ + ret = gnutls_priority_set_direct(session, + "NORMAL:-VERS-ALL:+VERS-TLS1.3:-KX-ALL", NULL); + if (ret < 0) { + fail("server: priority set failed (%s)\n\n", + gnutls_strerror(ret)); + terminate(); + } + + gnutls_certificate_set_x509_key_mem(serverx509cred, + &server_cert, &server_key, + GNUTLS_X509_FMT_PEM); + gnutls_credentials_set(session, GNUTLS_CRD_CERTIFICATE, + serverx509cred); + + gnutls_handshake_set_random(session, &hsrnd); + gnutls_transport_set_int(session, fd); + + do { + ret = gnutls_handshake(session); + } + while (ret < 0 && gnutls_error_is_fatal(ret) == 0); + if (ret < 0) { + close(fd); + gnutls_deinit(session); + fail("server: Handshake has failed (%s)\n\n", + gnutls_strerror(ret)); + terminate(); + } + if (debug) + success("server: Handshake was completed\n"); + + if (debug) + success("server: TLS version is: %s\n", + gnutls_protocol_get_name + (gnutls_protocol_get_version(session))); + + /* do not wait for the peer to close the connection. + */ + gnutls_bye(session, GNUTLS_SHUT_WR); + + close(fd); + gnutls_deinit(session); + + gnutls_certificate_free_credentials(serverx509cred); + + gnutls_global_deinit(); + + if (debug) + success("server: finished\n"); +} + +void doit(void) +{ + int fd[2]; + int ret; + + signal(SIGPIPE, SIG_IGN); + + ret = socketpair(AF_UNIX, SOCK_STREAM, 0, fd); + if (ret < 0) { + perror("socketpair"); + exit(1); + } + + child = fork(); + if (child < 0) { + perror("fork"); + fail("fork"); + exit(1); + } + + if (child) { + int status; + /* parent */ + + server(fd[0]); + wait(&status); + check_wait_status(status); + } else { + close(fd[0]); + client(fd[1]); + exit(0); + } +} + +#endif /* _WIN32 */ |