From 456170176a95d9c0855c872748c1295e805961a2 Mon Sep 17 00:00:00 2001 From: Daiki Ueno Date: Thu, 4 Apr 2019 16:51:28 +0200 Subject: tests: add post-handshake auth test using PKCS#11 token This adds a test that exercise the client's auth rejection logic, using the RSA-PSS disabled PKCS #11 token. Signed-off-by: Daiki Ueno --- .gitignore | 1 + tests/Makefile.am | 8 + tests/tls13/post-handshake-with-cert-pkcs11.c | 459 ++++++++++++++++++++++++++ 3 files changed, 468 insertions(+) create mode 100644 tests/tls13/post-handshake-with-cert-pkcs11.c diff --git a/.gitignore b/.gitignore index aff3df9bcf..8953088ca4 100644 --- a/.gitignore +++ b/.gitignore @@ -824,6 +824,7 @@ tests/tls13/no-psk-exts tests/tls13/ocsp-client tests/tls13/post-handshake-with-cert tests/tls13/post-handshake-with-cert-auto +tests/tls13/post-handshake-with-cert-pkcs11 tests/tls13/post-handshake-with-cert-ticket tests/tls13/post-handshake-with-psk tests/tls13/post-handshake-without-cert diff --git a/tests/Makefile.am b/tests/Makefile.am index 37e33c0efe..96e10bfc5b 100644 --- a/tests/Makefile.am +++ b/tests/Makefile.am @@ -450,6 +450,14 @@ tls13_anti_replay_CPPFLAGS = $(AM_CPPFLAGS) \ -I$(top_builddir)/gl \ $(NETTLE_CFLAGS) +if ENABLE_PKCS11 +if !WINDOWS +ctests += tls13/post-handshake-with-cert-pkcs11 +tls13_post_handshake_with_cert_pkcs11_DEPENDENCIES = libpkcs11mock2.la libutils.la +tls13_post_handshake_with_cert_pkcs11_LDADD = $(LDADD) $(LIBDL) +endif +endif + dist_check_SCRIPTS = rfc2253-escape-test rsa-md5-collision/rsa-md5-collision.sh systemkey.sh if !WINDOWS diff --git a/tests/tls13/post-handshake-with-cert-pkcs11.c b/tests/tls13/post-handshake-with-cert-pkcs11.c new file mode 100644 index 0000000000..ca78ade689 --- /dev/null +++ b/tests/tls13/post-handshake-with-cert-pkcs11.c @@ -0,0 +1,459 @@ +/* + * Copyright (C) 2017-2019 Red Hat, Inc. + * + * Author: 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 Lesser General Public License + * along with this program. If not, see + */ + +#ifdef HAVE_CONFIG_H +#include +#endif + +#include +#include + +#if defined(_WIN32) + +int main() +{ + exit(77); +} + +#else + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "cert-common.h" +#include "tls13/ext-parse.h" +#include "pkcs11/softhsm.h" +#include "utils.h" + +/* This program tests whether the Post Handshake Auth extension is + * present in the client hello, and whether it is missing from server + * hello. In addition it contains basic functionality test for + * post handshake authentication. + */ + +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); +} + +#define MAX_BUF 1024 + +#define P11LIB "libpkcs11mock2.so" + +#define PIN "1234" + +#define CONFIG_NAME "softhsm-post-handshake-with-cert-pkcs11" +#define CONFIG CONFIG_NAME".config" + +static +int pin_func(void *userdata, int attempt, const char *url, const char *label, + unsigned flags, char *pin, size_t pin_max) +{ + if (attempt == 0) { + strcpy(pin, PIN); + return 0; + } + return -1; +} + +static void client(int fd, int err) +{ + int ret; + gnutls_certificate_credentials_t x509_cred; + gnutls_session_t session; + gnutls_x509_crt_t crt; + gnutls_x509_privkey_t key; + gnutls_datum_t tmp; + const char *lib; + char buffer[MAX_BUF + 1]; + + global_init(); + + if (debug) { + gnutls_global_set_log_function(client_log_func); + gnutls_global_set_log_level(7); + } + + /* point to SoftHSM token that libpkcs11mock2.so internally uses */ + setenv(SOFTHSM_ENV, CONFIG, 1); + + gnutls_pkcs11_set_pin_function(pin_func, NULL); + + lib = getenv("P11MOCKLIB2"); + if (lib == NULL) + lib = P11LIB; + + ret = gnutls_pkcs11_init(GNUTLS_PKCS11_FLAG_MANUAL, NULL); + if (ret != 0) { + fail("%d: %s\n", ret, gnutls_strerror(ret)); + exit(1); + } + + ret = gnutls_pkcs11_add_provider(lib, NULL); + if (ret != 0) { + fail("%d: %s\n", ret, gnutls_strerror(ret)); + exit(1); + } + + ret = gnutls_x509_crt_init(&crt); + if (ret < 0) { + fprintf(stderr, + "gnutls_x509_crt_init: %s\n", gnutls_strerror(ret)); + exit(1); + } + + ret = gnutls_x509_crt_import(crt, &cli_ca3_cert, GNUTLS_X509_FMT_PEM); + if (ret < 0) { + fprintf(stderr, + "gnutls_x509_crt_import: %s\n", gnutls_strerror(ret)); + exit(1); + } + + if (debug) { + gnutls_x509_crt_print(crt, GNUTLS_CRT_PRINT_ONELINE, &tmp); + + printf("\tCertificate: %.*s\n", tmp.size, tmp.data); + gnutls_free(tmp.data); + } + + ret = gnutls_x509_privkey_init(&key); + if (ret < 0) { + fprintf(stderr, + "gnutls_x509_privkey_init: %s\n", gnutls_strerror(ret)); + exit(1); + } + + ret = gnutls_x509_privkey_import(key, &cli_ca3_key, GNUTLS_X509_FMT_PEM); + if (ret < 0) { + fprintf(stderr, + "gnutls_x509_privkey_import: %s\n", + gnutls_strerror(ret)); + exit(1); + } + + /* initialize softhsm token */ + ret = gnutls_pkcs11_token_init(SOFTHSM_URL, PIN, "test"); + if (ret < 0) { + fail("gnutls_pkcs11_token_init: %s\n", gnutls_strerror(ret)); + exit(1); + } + + ret = + gnutls_pkcs11_token_set_pin(SOFTHSM_URL, NULL, PIN, + GNUTLS_PIN_USER); + if (ret < 0) { + fail("gnutls_pkcs11_token_set_pin: %s\n", gnutls_strerror(ret)); + exit(1); + } + + ret = gnutls_pkcs11_copy_x509_crt(SOFTHSM_URL, crt, "cert", + GNUTLS_PKCS11_OBJ_FLAG_MARK_PRIVATE | + GNUTLS_PKCS11_OBJ_FLAG_LOGIN); + if (ret < 0) { + fail("gnutls_pkcs11_copy_x509_crt: %s\n", gnutls_strerror(ret)); + exit(1); + } + + ret = + gnutls_pkcs11_copy_x509_privkey(SOFTHSM_URL, key, "cert", + GNUTLS_KEY_DIGITAL_SIGNATURE | + GNUTLS_KEY_KEY_ENCIPHERMENT, + GNUTLS_PKCS11_OBJ_FLAG_MARK_PRIVATE + | + GNUTLS_PKCS11_OBJ_FLAG_MARK_SENSITIVE + | GNUTLS_PKCS11_OBJ_FLAG_LOGIN); + if (ret < 0) { + fail("gnutls_pkcs11_copy_x509_privkey: %s\n", + gnutls_strerror(ret)); + exit(1); + } + + gnutls_x509_crt_deinit(crt); + gnutls_x509_privkey_deinit(key); + + assert(gnutls_certificate_allocate_credentials(&x509_cred)>=0); + + /* Initialize TLS session + */ + assert(gnutls_init(&session, GNUTLS_CLIENT|GNUTLS_POST_HANDSHAKE_AUTH|GNUTLS_AUTO_REAUTH)>=0); + + gnutls_handshake_set_timeout(session, 20 * 1000); + + ret = gnutls_priority_set_direct(session, "NORMAL:-VERS-ALL:+VERS-TLS1.3:-SIGN-RSA-SHA256", NULL); + if (ret < 0) + fail("cannot set TLS 1.3 priorities\n"); + + + assert(gnutls_certificate_set_x509_key_file(x509_cred, + SOFTHSM_URL + ";object=cert;object-type=cert", + SOFTHSM_URL + ";object=cert;object-type=private;pin-value=" + PIN, + GNUTLS_X509_FMT_DER)>=0); + + gnutls_credentials_set(session, GNUTLS_CRD_CERTIFICATE, x509_cred); + + 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("handshake failed: %s\n", gnutls_strerror(ret)); + + if (debug) + success("client handshake completed\n"); + + gnutls_record_set_timeout(session, 20 * 1000); + + if (debug) + success("waiting for auth\n"); + + do { + ret = gnutls_record_recv(session, buffer, sizeof(buffer)); + } while (ret == GNUTLS_E_AGAIN || ret == GNUTLS_E_INTERRUPTED); + + if (err) { + if (ret != err) + fail("client: expected error %s, got: %s\n", gnutls_strerror(err), + gnutls_strerror(ret)); + } else if (ret < 0) + fail("client: gnutls_record_recv did not succeed as expected: %s\n", gnutls_strerror(ret)); + + do { + ret = gnutls_bye(session, GNUTLS_SHUT_WR); + } while (ret == GNUTLS_E_AGAIN || ret == GNUTLS_E_INTERRUPTED); + + close(fd); + + gnutls_deinit(session); + + gnutls_certificate_free_credentials(x509_cred); + + gnutls_global_deinit(); +} + +static unsigned client_hello_ok = 0; +static unsigned server_hello_ok = 0; + +#define TLS_EXT_POST_HANDSHAKE 49 + +static void parse_ext(void *priv, gnutls_datum_t *msg) +{ + if (msg->size != 0) { + fail("error in extension length: %d\n", (int)msg->size); + } +} + +static int hellos_callback(gnutls_session_t session, unsigned int htype, + unsigned post, unsigned int incoming, const gnutls_datum_t *msg) +{ + if (htype == GNUTLS_HANDSHAKE_SERVER_HELLO && post == GNUTLS_HOOK_POST) { + if (find_server_extension(msg, TLS_EXT_POST_HANDSHAKE, NULL, NULL)) { + fail("Post handshake extension seen in server hello!\n"); + } + server_hello_ok = 1; + + return GNUTLS_E_INTERRUPTED; + } + + if (htype != GNUTLS_HANDSHAKE_CLIENT_HELLO || post != GNUTLS_HOOK_PRE) + return 0; + + if (find_client_extension(msg, TLS_EXT_POST_HANDSHAKE, NULL, parse_ext)) + client_hello_ok = 1; + else + fail("Post handshake extension NOT seen in client hello!\n"); + + return 0; +} + +static void server(int fd, int err, int type) +{ + int ret; + char buffer[MAX_BUF + 1]; + gnutls_session_t session; + gnutls_certificate_credentials_t x509_cred; + + /* this must be called once in the program + */ + global_init(); + memset(buffer, 0, sizeof(buffer)); + + if (debug) { + gnutls_global_set_log_function(server_log_func); + gnutls_global_set_log_level(6); + } + + gnutls_certificate_allocate_credentials(&x509_cred); + gnutls_certificate_set_x509_key_mem(x509_cred, &server_cert, + &server_key, + GNUTLS_X509_FMT_PEM); + + gnutls_init(&session, GNUTLS_SERVER|GNUTLS_POST_HANDSHAKE_AUTH); + + gnutls_handshake_set_timeout(session, 20 * 1000); + gnutls_handshake_set_hook_function(session, GNUTLS_HANDSHAKE_ANY, + GNUTLS_HOOK_BOTH, + hellos_callback); + + /* avoid calling all the priority functions, since the defaults + * are adequate. + */ + gnutls_priority_set_direct(session, "NORMAL:-VERS-ALL:+VERS-TLS1.3", NULL); + + gnutls_credentials_set(session, GNUTLS_CRD_CERTIFICATE, x509_cred); + + gnutls_transport_set_int(session, fd); + + do { + ret = gnutls_handshake(session); + } while (ret < 0 && gnutls_error_is_fatal(ret) == 0); + + if (ret != 0) + fail("handshake failed: %s\n", gnutls_strerror(ret)); + + if (!(gnutls_session_get_flags(session) & GNUTLS_SFLAGS_POST_HANDSHAKE_AUTH)) { + fail("server: session flags did not contain GNUTLS_SFLAGS_POST_HANDSHAKE_AUTH\n"); + } + + + if (client_hello_ok == 0) { + fail("server: did not verify the client hello\n"); + } + + if (server_hello_ok == 0) { + fail("server: did not verify the server hello contents\n"); + } + + if (debug) + success("server handshake completed\n"); + + gnutls_certificate_server_set_request(session, type); + + /* ask peer for re-authentication */ + do { + ret = gnutls_reauth(session, 0); + } while (ret == GNUTLS_E_AGAIN || ret == GNUTLS_E_INTERRUPTED); + + if (err) { + if (ret != err) + fail("server: expected error %s, got: %s\n", gnutls_strerror(err), + gnutls_strerror(ret)); + } else if (ret != 0) + fail("server: gnutls_reauth did not succeed as expected: %s\n", gnutls_strerror(ret)); + + do { + ret = gnutls_bye(session, GNUTLS_SHUT_RDWR); + } while (ret == GNUTLS_E_AGAIN || ret == GNUTLS_E_INTERRUPTED); + + close(fd); + gnutls_deinit(session); + + gnutls_certificate_free_credentials(x509_cred); + + gnutls_global_deinit(); + + if (debug) + success("server: client/server hello were verified\n"); +} + +static +void start(const char *name, int err, int cli_err, int type) +{ + int fd[2]; + int ret; + pid_t child; + int status = 0; + + success("testing %s\n", name); + + client_hello_ok = 0; + server_hello_ok = 0; + + signal(SIGCHLD, SIG_IGN); + 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) { + /* parent */ + close(fd[1]); + client(fd[0], cli_err); + kill(child, SIGTERM); + wait(&status); + check_wait_status(status); + } else { + close(fd[0]); + server(fd[1], err, type); + exit(0); + } + +} + +void doit(void) +{ + const char *bin; + char buf[128]; + + /* initialize SoftHSM token that libpkcs11mock2.so internally uses */ + bin = softhsm_bin(); + + set_softhsm_conf(CONFIG); + snprintf(buf, sizeof(buf), + "%s --init-token --slot 0 --label test --so-pin " PIN " --pin " + PIN, bin); + system(buf); + + start("reauth-require", GNUTLS_E_CERTIFICATE_REQUIRED, GNUTLS_E_SUCCESS, GNUTLS_CERT_REQUIRE); + start("reauth-request", 0, GNUTLS_E_SUCCESS, GNUTLS_CERT_REQUEST); +} +#endif /* _WIN32 */ -- cgit v1.2.1