1 files changed, 104 insertions, 0 deletions
diff --git a/tests/system-override-kx.sh b/tests/system-override-kx.sh
new file mode 100755
index 0000000..642ff0b
--- /dev/null
+++ b/tests/system-override-kx.sh
@@ -0,0 +1,104 @@
+#!/bin/sh
+
+# Copyright (C) 2019 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/>
+
+: ${srcdir=.}
+: ${SERV=../src/gnutls-serv${EXEEXT}}
+: ${CLI=../src/gnutls-cli${EXEEXT}}
+TMPFILE=config.$$.tmp
+TMPFILE2=log.$$.tmp
+export GNUTLS_SYSTEM_PRIORITY_FAIL_ON_INVALID=1
+
+if ! test -x "${SERV}"; then
+	exit 77
+fi
+
+if ! test -x "${CLI}"; then
+	exit 77
+fi
+
+if test "${WINDIR}" != ""; then
+	exit 77
+fi
+
+. "${srcdir}/scripts/common.sh"
+
+# We intentionally add stray spaces and tabs to check our parser
+cat <<_EOF_ > ${TMPFILE}
+[overrides]
+
+tls-disabled-kx = dhe-dss
+tls-disabled-kx = dhe-rsa
+tls-disabled-kx = unknown
+_EOF_
+
+export GNUTLS_SYSTEM_PRIORITY_FILE="${TMPFILE}"
+export GNUTLS_DEBUG_LEVEL=3
+
+# Try whether a client connection with a disabled KX algorithm will succeed.
+
+KEY1=${srcdir}/../doc/credentials/x509/key-rsa.pem
+CERT1=${srcdir}/../doc/credentials/x509/cert-rsa.pem
+
+unset GNUTLS_SYSTEM_PRIORITY_FILE
+
+eval "${GETPORT}"
+launch_server --echo --priority "NORMAL:-VERS-ALL:+VERS-TLS1.2" --x509keyfile ${KEY1} --x509certfile ${CERT1}
+PID=$!
+wait_server ${PID}
+
+"${CLI}" -p "${PORT}" 127.0.0.1 --priority NORMAL:-KX-ALL:+DHE-RSA --insecure --logfile ${TMPFILE2} </dev/null >/dev/null ||
+	fail "expected connection to succeed (1)"
+
+export GNUTLS_SYSTEM_PRIORITY_FILE="${TMPFILE}"
+
+"${CLI}" -p "${PORT}" 127.0.0.1 --priority NORMAL:-KX-ALL:+DHE-RSA --insecure --logfile ${TMPFILE2} </dev/null >/dev/null &&
+	fail "expected connection to fail (2)"
+
+# test whether the unknown KX will be caught
+GNUTLS_SYSTEM_PRIORITY_FAIL_ON_INVALID=1
+export GNUTLS_SYSTEM_PRIORITY_FAIL_ON_INVALID
+"${CLI}" -p "${PORT}" 127.0.0.1 --priority NORMAL --insecure --logfile ${TMPFILE2} </dev/null >/dev/null &&
+	fail "expected connection to succeed (3)"
+
+unset GNUTLS_SYSTEM_PRIORITY_FAIL_ON_INVALID
+
+kill ${PID}
+wait
+
+# Try whether a server connection with a disabled KX will succeed.
+
+KEY1=${srcdir}/../doc/credentials/x509/key-rsa.pem
+CERT1=${srcdir}/../doc/credentials/x509/cert-rsa.pem
+
+eval "${GETPORT}"
+launch_server --echo --priority "NORMAL:-VERS-ALL:+VERS-TLS1.2" --x509keyfile ${KEY1} --x509certfile ${CERT1}
+PID=$!
+wait_server ${PID}
+
+unset GNUTLS_SYSTEM_PRIORITY_FILE
+
+"${CLI}" -p "${PORT}" 127.0.0.1 --priority "NORMAL:-KX-ALL:+DHE-RSA" --insecure --logfile ${TMPFILE2} </dev/null >/dev/null &&
+	fail "expected connection to fail (2)"
+
+kill ${PID}
+wait
+
+exit 0