1 files changed, 380 insertions, 0 deletions
diff --git a/tests/mini-record.c b/tests/mini-record.c
new file mode 100644
index 0000000..4081cde
--- /dev/null
+++ b/tests/mini-record.c
@@ -0,0 +1,380 @@
+/*
+ * Copyright (C) 2012 Free Software Foundation, Inc.
+ * Copyright (C) 2017 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 Lesser General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#if defined(_WIN32)
+
+int main()
+{
+	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/dtls.h>
+#include <signal.h>
+
+#include "utils.h"
+#include "cert-common.h"
+
+static void terminate(void);
+
+/* This program tests the robustness of record
+ * decoding.
+ */
+
+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
+
+static int to_send = -1;
+static int mtu = 0;
+
+static ssize_t
+push(gnutls_transport_ptr_t tr, const void *data, size_t len)
+{
+	int fd = (long int) tr;
+
+	return send(fd, data, len, 0);
+}
+
+#define RECORD_HEADER_SIZE (5+8)
+
+static ssize_t
+push_crippled(gnutls_transport_ptr_t tr, const void *data, size_t len)
+{
+	int fd = (long int) tr;
+	int _len, ret;
+	uint8_t *_data = (void *) data;
+
+	if (to_send == -1)
+		return send(fd, data, len, 0);
+	else {
+#if 0
+		_len =
+		    ((uint8_t *) data)[11] << 8 | ((uint8_t *) data)[12];
+		fprintf(stderr, "mtu: %d, len: %d", mtu, (int) _len);
+		fprintf(stderr, " send: %d\n", (int) to_send);
+#endif
+
+		_len = to_send;
+		_data[11] = _len >> 8;
+		_data[12] = _len;
+
+		/* correct len */
+		ret = send(fd, data, RECORD_HEADER_SIZE + _len, 0);
+
+		if (ret < 0)
+			return ret;
+
+		return len;
+	}
+}
+
+static void client(int fd, const char *prio)
+{
+	int ret;
+	char buffer[MAX_BUF + 1];
+	gnutls_anon_client_credentials_t anoncred;
+	gnutls_certificate_credentials_t x509_cred;
+	gnutls_session_t session;
+	/* Need to enable anonymous KX specifically. */
+
+	global_init();
+
+	if (debug) {
+		gnutls_global_set_log_function(client_log_func);
+		gnutls_global_set_log_level(7);
+	}
+
+	gnutls_anon_allocate_client_credentials(&anoncred);
+	gnutls_certificate_allocate_credentials(&x509_cred);
+
+	/* Initialize TLS session
+	 */
+	gnutls_init(&session, GNUTLS_CLIENT | GNUTLS_DATAGRAM);
+	gnutls_dtls_set_mtu(session, 1500);
+
+	/* Use default priorities */
+	ret = gnutls_priority_set_direct(session, prio, NULL);
+	if (ret < 0) {
+		fail("error in priority '%s': %s\n", prio, gnutls_strerror(ret));
+		exit(1);
+	}
+
+	/* put the anonymous credentials to the current session
+	 */
+	gnutls_credentials_set(session, GNUTLS_CRD_ANON, anoncred);
+	gnutls_credentials_set(session, GNUTLS_CRD_CERTIFICATE, x509_cred);
+
+	gnutls_transport_set_int(session, fd);
+	gnutls_transport_set_push_function(session, push);
+
+	/* 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\n");
+		gnutls_perror(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)));
+
+	/* make sure we are not blocked forever */
+	gnutls_record_set_timeout(session, 10000);
+
+	do {
+		do {
+			ret = gnutls_record_recv(session, buffer, MAX_BUF);
+		} while (ret == GNUTLS_E_AGAIN
+			 || ret == GNUTLS_E_INTERRUPTED);
+	} while (ret > 0);
+
+	if (ret == 0 || ret == GNUTLS_E_TIMEDOUT) {
+		if (debug)
+			success
+			    ("client: Peer has closed the TLS connection\n");
+		goto end;
+	} else if (ret < 0) {
+		if (ret != 0) {
+			fail("client: Error: %s\n", gnutls_strerror(ret));
+			exit(1);
+		}
+	}
+
+	gnutls_bye(session, GNUTLS_SHUT_WR);
+
+      end:
+
+	close(fd);
+
+	gnutls_deinit(session);
+
+	gnutls_anon_free_client_credentials(anoncred);
+	gnutls_certificate_free_credentials(x509_cred);
+
+	gnutls_global_deinit();
+}
+
+
+/* These are global */
+pid_t child;
+
+static void terminate(void)
+{
+	assert(child);
+	kill(child, SIGTERM);
+	exit(1);
+}
+
+static void server(int fd, const char *prio)
+{
+	int ret;
+	char buffer[MAX_BUF + 1];
+	gnutls_session_t session;
+	gnutls_anon_server_credentials_t anoncred;
+	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(4711);
+	}
+
+	gnutls_certificate_allocate_credentials(&x509_cred);
+	gnutls_certificate_set_x509_key_mem(x509_cred, &server_cert,
+					    &server_key,
+					    GNUTLS_X509_FMT_PEM);
+
+	gnutls_anon_allocate_server_credentials(&anoncred);
+
+	gnutls_init(&session, GNUTLS_SERVER | GNUTLS_DATAGRAM);
+	gnutls_dtls_set_mtu(session, 1500);
+
+	/* avoid calling all the priority functions, since the defaults
+	 * are adequate.
+	 */
+	ret = gnutls_priority_set_direct(session, prio, NULL);
+	if (ret < 0) {
+		fail("error in priority '%s': %s\n", prio, gnutls_strerror(ret));
+		exit(1);
+	}
+
+	gnutls_credentials_set(session, GNUTLS_CRD_ANON, anoncred);
+	gnutls_credentials_set(session, GNUTLS_CRD_CERTIFICATE, x509_cred);
+
+	gnutls_transport_set_int(session, fd);
+	gnutls_transport_set_push_function(session, push_crippled);
+
+	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)));
+	mtu = gnutls_dtls_get_mtu(session);
+
+	do {
+		usleep(10000); /* some systems like FreeBSD have their buffers full during this send */
+		do {
+			ret =
+			    gnutls_record_send(session, buffer,
+						sizeof(buffer));
+		} while (ret == GNUTLS_E_AGAIN
+			 || ret == GNUTLS_E_INTERRUPTED);
+
+		if (ret < 0) {
+			fail("Error sending %d byte packet: %s\n", to_send,
+			     gnutls_strerror(ret));
+			terminate();
+		}
+		to_send++;
+	}
+	while (to_send < 64);
+
+	to_send = -1;
+
+	/* wait for the peer to close the connection.
+	 */
+	gnutls_bye(session, GNUTLS_SHUT_WR);
+
+	close(fd);
+	gnutls_deinit(session);
+
+	gnutls_anon_free_server_credentials(anoncred);
+	gnutls_certificate_free_credentials(x509_cred);
+
+	gnutls_global_deinit();
+
+	if (debug)
+		success("server: finished\n");
+}
+
+static void start(const char *name, const char *prio)
+{
+	int fd[2];
+	int ret, status = 0;
+
+	ret = socketpair(AF_UNIX, SOCK_DGRAM, 0, fd);
+	if (ret < 0) {
+		perror("socketpair");
+		exit(1);
+	}
+
+	child = fork();
+	if (child < 0) {
+		perror("fork");
+		fail("fork");
+		exit(1);
+	}
+
+	if (child) {
+		/* parent */
+		success("trying: %s\n", name);
+		close(fd[0]);
+		client(fd[1], prio);
+		wait(&status);
+		check_wait_status(status);
+	} else {
+		close(fd[1]);
+		server(fd[0], prio);
+		exit(0);
+	}
+}
+
+#define AES_CBC "NONE:+VERS-DTLS1.0:-CIPHER-ALL:+AES-128-CBC:+SHA1:+SIGN-ALL:+COMP-ALL:+ANON-ECDH:+CURVE-ALL"
+#define AES_CBC_SHA256 "NONE:+VERS-DTLS1.2:-CIPHER-ALL:+RSA:+AES-128-CBC:+AES-256-CBC:+SHA256:+SIGN-ALL:+COMP-ALL:+ANON-ECDH:+CURVE-ALL"
+#define AES_GCM "NONE:+VERS-DTLS1.2:-CIPHER-ALL:+RSA:+AES-128-GCM:+MAC-ALL:+SIGN-ALL:+COMP-ALL:+ANON-ECDH:+CURVE-ALL"
+#define AES_CCM "NONE:+VERS-DTLS1.2:-CIPHER-ALL:+RSA:+AES-128-CCM:+MAC-ALL:+SIGN-ALL:+COMP-ALL:+ANON-ECDH:+CURVE-ALL"
+#define AES_CCM_8 "NONE:+VERS-DTLS1.2:-CIPHER-ALL:+RSA:+AES-128-CCM-8:+MAC-ALL:+SIGN-ALL:+COMP-ALL:+ANON-ECDH:+CURVE-ALL"
+#define CHACHA_POLY1305 "NONE:+VERS-DTLS1.2:-CIPHER-ALL:+RSA:+CHACHA20-POLY1305:+MAC-ALL:+SIGN-ALL:+COMP-ALL:+ECDHE-RSA:+CURVE-ALL"
+
+static void ch_handler(int sig)
+{
+	return;
+}
+
+void doit(void)
+{
+	signal(SIGCHLD, ch_handler);
+	signal(SIGPIPE, SIG_IGN);
+
+	start("aes-cbc", AES_CBC);
+	start("aes-cbc-sha256", AES_CBC_SHA256);
+	start("aes-gcm", AES_GCM);
+	start("aes-ccm", AES_CCM);
+	start("aes-ccm-8", AES_CCM_8);
+	if (!gnutls_fips140_mode_enabled()) {
+		start("chacha20", CHACHA_POLY1305);
+	}
+}
+
+#endif				/* _WIN32 */