1 files changed, 102 insertions, 0 deletions
diff --git a/externals/mbedtls/tests/scripts/key-exchanges.pl b/externals/mbedtls/tests/scripts/key-exchanges.pl
new file mode 100755
index 0000000000..47da663602
--- /dev/null
+++ b/externals/mbedtls/tests/scripts/key-exchanges.pl
@@ -0,0 +1,102 @@
+#!/usr/bin/env perl
+
+# key-exchanges.pl
+#
+# Copyright The Mbed TLS Contributors
+# SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
+#
+# This file is provided under the Apache License 2.0, or the
+# GNU General Public License v2.0 or later.
+#
+# **********
+# Apache License 2.0:
+#
+# Licensed under the Apache License, Version 2.0 (the "License"); you may
+# not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+# **********
+#
+# **********
+# GNU General Public License v2.0 or later:
+#
+# This program 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 2 of the License, or
+# (at your option) any later version.
+#
+# This program 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 this program; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+#
+# **********
+#
+# Purpose
+#
+# To test the code dependencies on individual key exchanges in the SSL module.
+# is a verification step to ensure we don't ship SSL code that do not work
+# for some build options.
+#
+# The process is:
+#       for each possible key exchange
+#           build the library with all but that key exchange disabled
+#
+# Usage: tests/scripts/key-exchanges.pl
+#
+# This script should be executed from the root of the project directory.
+#
+# For best effect, run either with cmake disabled, or cmake enabled in a mode
+# that includes -Werror.
+
+use warnings;
+use strict;
+
+-d 'library' && -d 'include' && -d 'tests' or die "Must be run from root\n";
+
+my $sed_cmd = 's/^#define \(MBEDTLS_KEY_EXCHANGE_.*_ENABLED\)/\1/p';
+my $config_h = 'include/mbedtls/config.h';
+my @kexes = split( /\s+/, `sed -n -e '$sed_cmd' $config_h` );
+
+system( "cp $config_h $config_h.bak" ) and die;
+sub abort {
+    system( "mv $config_h.bak $config_h" ) and warn "$config_h not restored\n";
+    # use an exit code between 1 and 124 for git bisect (die returns 255)
+    warn $_[0];
+    exit 1;
+}
+
+for my $kex (@kexes) {
+    system( "cp $config_h.bak $config_h" ) and die "$config_h not restored\n";
+    system( "make clean" ) and die;
+
+    print "\n******************************************\n";
+    print "* Testing with key exchange: $kex\n";
+    print "******************************************\n";
+
+    # full config with all key exchanges disabled except one
+    system( "scripts/config.pl full" ) and abort "Failed config full\n";
+    for my $k (@kexes) {
+        next if $k eq $kex;
+        system( "scripts/config.pl unset $k" )
+            and abort "Failed to disable $k\n";
+    }
+
+    system( "make lib CFLAGS='-Os -Werror'" ) and abort "Failed to build lib: $kex\n";
+}
+
+system( "mv $config_h.bak $config_h" ) and die "$config_h not restored\n";
+system( "make clean" ) and die;
+exit 0;