tests: check operation of TLS and DTLS under seccomp when configured with --enable-seccomp-tests

1 files changed, 376 insertions, 0 deletions

diff --git a/tests/tls-with-seccomp.c b/tests/tls-with-seccomp.c
new file mode 100644
index 0000000000..b7bd0ded10
--- /dev/null
+++ b/tests/tls-with-seccomp.c
@@ -0,0 +1,376 @@
+/*
+ * Copyright (C) 2015 Nikos Mavrogiannopoulos
+ *
+ * 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 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 <stdio.h>
+#include <stdlib.h>
+
+#if defined(_WIN32) || !defined(HAVE_LIBSECCOMP)
+
+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 <signal.h>
+#include <gnutls/gnutls.h>
+#include <gnutls/dtls.h>
+
+#include "utils.h"
+
+static void terminate(void);
+
+/* This program tests the client hello verify in DTLS
+ */
+
+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);
+}
+
+/* A very basic DTLS client handling DTLS 0.9 which sets premaster secret.
+ */
+
+#define MAX_BUF 1024
+
+static void client(int fd)
+{
+	int ret;
+	char buffer[MAX_BUF + 1];
+	gnutls_certificate_credentials_t xcred;
+	gnutls_session_t session;
+
+	global_init();
+
+	if (debug) {
+		gnutls_global_set_log_function(client_log_func);
+		gnutls_global_set_log_level(4711);
+	}
+
+	gnutls_certificate_allocate_credentials(&xcred);
+
+	/* Initialize TLS session
+	 */
+	gnutls_init(&session, GNUTLS_CLIENT);
+	gnutls_handshake_set_timeout(session, 20 * 1000);
+
+	/* Use default priorities */
+	gnutls_priority_set_direct(session,
+				   "NORMAL:-KX-ALL:+ECDHE-RSA",
+				   NULL);
+
+	gnutls_credentials_set(session, GNUTLS_CRD_CERTIFICATE, xcred);
+
+	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\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)));
+
+	do {
+		ret = gnutls_record_recv(session, buffer, sizeof(buffer)-1);
+	} while (ret == GNUTLS_E_AGAIN || ret == GNUTLS_E_INTERRUPTED);
+
+	if (ret == 0) {
+		if (debug)
+			success
+			    ("client: Peer has closed the TLS connection\n");
+		goto end;
+	} else if (ret < 0) {
+		fail("client: Error: %s\n", gnutls_strerror(ret));
+		exit(1);
+	}
+
+	ret = gnutls_bye(session, GNUTLS_SHUT_WR);
+	if (ret < 0) {
+		fail("server: error in closing session: %s\n", gnutls_strerror(ret));
+	}
+
+      end:
+
+	close(fd);
+
+	gnutls_deinit(session);
+
+	gnutls_certificate_free_credentials(xcred);
+
+	gnutls_global_deinit();
+}
+
+
+/* These are global */
+pid_t child;
+
+static void terminate(void)
+{
+	int status;
+
+	kill(child, SIGTERM);
+	wait(&status);
+	exit(1);
+}
+
+static unsigned char server_cert_pem[] =
+"-----BEGIN CERTIFICATE-----\n"
+"MIIDIzCCAgugAwIBAgIMUz8PCR2sdRK56V6OMA0GCSqGSIb3DQEBCwUAMA8xDTAL\n"
+"BgNVBAMTBENBLTEwIhgPMjAxNDA0MDQxOTU5MDVaGA85OTk5MTIzMTIzNTk1OVow\n"
+"EzERMA8GA1UEAxMIc2VydmVyLTIwggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAwggEK\n"
+"AoIBAQDZ3dCzh9gOTOiOb2dtrPu91fYYgC/ey0ACYjQxaru7FZwnuXPhQK9KHsIV\n"
+"YRIyo49wjKZddkHet2sbpFAAeETZh8UUWLRb/mupyaSJMycaYCNjLZCUJTztvXxJ\n"
+"CCNfbtgvKC+Vu1mu94KBPatslgvnsamH7AiL5wmwRRqdH/Z93XaEvuRG6Zk0Sh9q\n"
+"ZMdCboGfjtmGEJ1V+z5CR+IyH4sckzd8WJW6wBSEwgliGaXnc75xKtFWBZV2njNr\n"
+"8V1TOYOdLEbiF4wduVExL5TKq2ywNkRpUfK2I1BcWS5D9Te/QT7aSdE08rL6ztmZ\n"
+"IhILSrMOfoLnJ4lzXspz3XLlEuhnAgMBAAGjdzB1MAwGA1UdEwEB/wQCMAAwFAYD\n"
+"VR0RBA0wC4IJbG9jYWxob3N0MA8GA1UdDwEB/wQFAwMHoAAwHQYDVR0OBBYEFJXR\n"
+"raRS5MVhEqaRE42A3S2BIj7UMB8GA1UdIwQYMBaAFP6S7AyMRO2RfkANgo8YsCl8\n"
+"JfJkMA0GCSqGSIb3DQEBCwUAA4IBAQCQ62+skMVZYrGbpab8RI9IG6xH8kEndvFj\n"
+"J7wBBZCOlcjOj+HQ7a2buF5zGKRwAOSznKcmvZ7l5DPdsd0t5/VT9LKSbQ6+CfGr\n"
+"Xs5qPaDJnRhZkOILCvXJ9qyO+79WNMsg9pWnxkTK7aWR5OYE+1Qw1jG681HMkWTm\n"
+"nt7et9bdiNNpvA+L55569XKbdtJLs3hn5gEQFgS7EaEj59aC4vzSTFcidowCoa43\n"
+"7JmfSfC9YaAIFH2vriyU0QNf2y7cG5Hpkge+U7uMzQrsT77Q3SDB9WkyPAFNSB4Q\n"
+"B/r+OtZXOnQhLlMV7h4XGlWruFEaOBVjFHSdMGUh+DtaLvd1bVXI\n"
+"-----END CERTIFICATE-----\n"
+"-----BEGIN CERTIFICATE-----\n"
+"MIIDATCCAemgAwIBAgIBATANBgkqhkiG9w0BAQsFADAPMQ0wCwYDVQQDEwRDQS0w\n"
+"MCIYDzIwMTQwNDA0MTk1OTA1WhgPOTk5OTEyMzEyMzU5NTlaMA8xDTALBgNVBAMT\n"
+"BENBLTEwggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAwggEKAoIBAQDvhyQfsUm3T0xK\n"
+"jiBXO3H6Y27b7lmCRYZQCmXCl2sUsGDL7V9biavTt3+sorWtH542/cTGDh5n8591\n"
+"7rVxAB/VASmN55O3fjZyFGrjusjhXBla0Yxe5rZ/7/Pjrq84T7gc/IXiX9Sums/c\n"
+"o9AeoykfhsjV2ubhh4h+8uPsHDTcAFTxq3mQaoldwnW2nmjDFzaKLtQdnyFf41o6\n"
+"nsJCK/J9PtpdCID5Zb+eQfu5Yhk1iUHe8a9TOstCHtgBq61YzufDHUQk3zsT+VZM\n"
+"20lDvSBnHdWLjxoea587JbkvtH8xRR8ThwABSb98qPnhJ8+A7mpO89QO1wxZM85A\n"
+"xEweQlMHAgMBAAGjZDBiMA8GA1UdEwEB/wQFMAMBAf8wDwYDVR0PAQH/BAUDAwcE\n"
+"ADAdBgNVHQ4EFgQU/pLsDIxE7ZF+QA2CjxiwKXwl8mQwHwYDVR0jBBgwFoAUGD0R\n"
+"Yr2H7kfjQUcBMxSTCDQnhu0wDQYJKoZIhvcNAQELBQADggEBANEXLUV+Z1PGTn7M\n"
+"3rPT/m/EamcrZJ3vFWrnfN91ws5llyRUKNhx6222HECh3xRSxH9YJONsbv2zY6sd\n"
+"ztY7lvckL4xOgWAjoCVTx3hqbZjDxpLRsvraw1PlqBHlRQVWLKlEQ55+tId2zgMX\n"
+"Z+wxM7FlU/6yWVPODIxrqYQd2KqaEp4aLIklw6Hi4HD6DnQJikjsJ6Noe0qyX1Tx\n"
+"uZ8mgP/G47Fe2d2H29kJ1iJ6hp1XOqyWrVIh/jONcnTvWS8aMqS3MU0EJH2Pb1Qa\n"
+"KGIvbd/3H9LykFTP/b7Imdv2fZxXIK8jC+jbF1w6rdBCVNA0p30X/jonoC3vynEK\n"
+"5cK0cgs=\n"
+"-----END CERTIFICATE-----\n";
+
+const gnutls_datum_t server_cert = { server_cert_pem,
+	sizeof(server_cert_pem)
+};
+
+static unsigned char server_key_pem[] =
+"-----BEGIN RSA PRIVATE KEY-----\n"
+"MIIEpQIBAAKCAQEA2d3Qs4fYDkzojm9nbaz7vdX2GIAv3stAAmI0MWq7uxWcJ7lz\n"
+"4UCvSh7CFWESMqOPcIymXXZB3rdrG6RQAHhE2YfFFFi0W/5rqcmkiTMnGmAjYy2Q\n"
+"lCU87b18SQgjX27YLygvlbtZrveCgT2rbJYL57Gph+wIi+cJsEUanR/2fd12hL7k\n"
+"RumZNEofamTHQm6Bn47ZhhCdVfs+QkfiMh+LHJM3fFiVusAUhMIJYhml53O+cSrR\n"
+"VgWVdp4za/FdUzmDnSxG4heMHblRMS+UyqtssDZEaVHytiNQXFkuQ/U3v0E+2knR\n"
+"NPKy+s7ZmSISC0qzDn6C5yeJc17Kc91y5RLoZwIDAQABAoIBAQCRXAu5HPOsZufq\n"
+"0K2DYZz9BdqSckR+M8HbVUZZiksDAeIUJwoHyi6qF2eK+B86JiK4Bz+gsBw2ys3t\n"
+"vW2bQqM9N/boIl8D2fZfbCgZWkXGtUonC+mgzk+el4Rq/cEMFVqr6/YDwuKNeJpc\n"
+"PJc5dcsvpTvlcjgpj9bJAvJEz2SYiIUpvtG4WNMGGapVZZPDvWn4/isY+75T5oDf\n"
+"1X5jG0lN9uoUjcuGuThN7gxjwlRkcvEOPHjXc6rxfrWIDdiz/91V46PwpqVDpRrg\n"
+"ig6U7+ckS0Oy2v32x0DaDhwAfDJ2RNc9az6Z+11lmY3LPkjG/p8Klcmgvt4/lwkD\n"
+"OYRC5QGRAoGBAPFdud6nmVt9h1DL0o4R6snm6P3K81Ds765VWVmpzJkK3+bwe4PQ\n"
+"GQQ0I0zN4hXkDMwHETS+EVWllqkK/d4dsE3volYtyTti8zthIATlgSEJ81x/ChAQ\n"
+"vvXxgx+zPUnb1mUwy+X+6urTHe4bxN2ypg6ROIUmT+Hx1ITG40LRRiPTAoGBAOcT\n"
+"WR8DTrj42xbxAUpz9vxJ15ZMwuIpk3ShE6+CWqvaXHF22Ju4WFwRNlW2zVLH6UMt\n"
+"nNfOzyDoryoiu0+0mg0wSmgdJbtCSHoI2GeiAnjGn5i8flQlPQ8bdwwmU6g6I/EU\n"
+"QRbGK/2XLmlrGN52gVy9UX0NsAA5fEOsAJiFj1CdAoGBAN9i3nbq6O2bNVSa/8mL\n"
+"XaD1vGe/oQgh8gaIaYSpuXlfbjCAG+C4BZ81XgJkfj3CbfGbDNqimsqI0fKsAJ/F\n"
+"HHpVMgrOn3L+Np2bW5YMj0Fzwy+1SCvsQ8C+gJwjOLMV6syGp/+6udMSB55rRv3k\n"
+"rPnIf+YDumUke4tTw9wAcgkPAoGASHMkiji7QfuklbjSsslRMyDj21gN8mMevH6U\n"
+"cX7pduBsA5dDqu9NpPAwnQdHsSDE3i868d8BykuqQAfLut3hPylY6vPYlLHfj4Oe\n"
+"dj+xjrSX7YeMBE34qvfth32s1R4FjtzO25keyc/Q2XSew4FcZftlxVO5Txi3AXC4\n"
+"bxnRKXECgYEAva+og7/rK+ZjboJVNxhFrwHp9bXhz4tzrUaWNvJD2vKJ5ZcThHcX\n"
+"zCig8W7eXHLPLDhi9aWZ3kUZ1RLhrFc/6dujtVtU9z2w1tmn1I+4Zi6D6L4DzKdg\n"
+"nMRLFoXufs/qoaJTqa8sQvKa+ceJAF04+gGtw617cuaZdZ3SYRLR2dk=\n"
+"-----END RSA PRIVATE KEY-----\n";
+
+const gnutls_datum_t server_key = { server_key_pem,
+	sizeof(server_key_pem)
+};
+
+static void server(int fd)
+{
+	int ret;
+	gnutls_certificate_credentials_t xcred;
+	char buffer[MAX_BUF + 1];
+	gnutls_session_t session;
+
+	/* 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(&xcred);
+
+	ret = gnutls_certificate_set_x509_key_mem(xcred,
+					    &server_cert, &server_key,
+					    GNUTLS_X509_FMT_PEM);
+	if (ret < 0)
+		exit(1);
+
+	ret = disable_system_calls();
+	if (ret < 0) {
+		fprintf(stderr, "could not enable seccomp\n");
+		exit(2);
+	}
+
+	gnutls_init(&session, GNUTLS_SERVER);
+	gnutls_handshake_set_timeout(session, 20 * 1000);
+
+	/* avoid calling all the priority functions, since the defaults
+	 * are adequate.
+	 */
+	gnutls_priority_set_direct(session,
+				   "NORMAL:-KX-ALL:+ECDHE-RSA",
+				   NULL);
+
+	gnutls_credentials_set(session, GNUTLS_CRD_CERTIFICATE, xcred);
+
+	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)));
+
+	/* see the Getting peer's information example */
+	/* print_info(session); */
+
+	memset(buffer, 1, sizeof(buffer));
+	do {
+		ret = gnutls_record_send(session, buffer, sizeof(buffer)-1);
+	} while (ret == GNUTLS_E_AGAIN || ret == GNUTLS_E_INTERRUPTED);
+
+	if (ret < 0) {
+		close(fd);
+		gnutls_deinit(session);
+		fail("server: data sending has failed (%s)\n\n",
+		     gnutls_strerror(ret));
+		terminate();
+	}
+
+	ret = gnutls_bye(session, GNUTLS_SHUT_RDWR);
+	if (ret < 0) {
+		fail("server: error in closing session: %s\n", gnutls_strerror(ret));
+	}
+
+	close(fd);
+	gnutls_deinit(session);
+
+	gnutls_certificate_free_credentials(xcred);
+
+	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 */
+
+		close(fd[0]);
+		client(fd[1]);
+
+		wait(&status);
+		if (WEXITSTATUS(status) != 0)
+			fail("Child died with status %d\n",
+			     WEXITSTATUS(status));
+	} else {
+		close(fd[1]);
+		server(fd[0]);
+		exit(0);
+	}
+}
+
+#endif				/* _WIN32 */