160 lines
4.3 KiB
Bash
Executable File
160 lines
4.3 KiB
Bash
Executable File
#!/bin/sh
|
|
# -*-sh-basic-offset: 4-*-
|
|
# Usage: udp_proxy_wrapper.sh [PROXY_PARAM...] -- [SERVER_PARAM...]
|
|
#
|
|
# 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.
|
|
#
|
|
# **********
|
|
|
|
set -u
|
|
|
|
MBEDTLS_BASE="$(dirname -- "$0")/../.."
|
|
TPXY_BIN="$MBEDTLS_BASE/programs/test/udp_proxy"
|
|
SRV_BIN="$MBEDTLS_BASE/programs/ssl/ssl_server2"
|
|
|
|
: ${VERBOSE:=0}
|
|
|
|
stop_proxy() {
|
|
if [ -n "${tpxy_pid:-}" ]; then
|
|
echo
|
|
echo " * Killing proxy (pid $tpxy_pid) ..."
|
|
kill $tpxy_pid
|
|
fi
|
|
}
|
|
|
|
stop_server() {
|
|
if [ -n "${srv_pid:-}" ]; then
|
|
echo
|
|
echo " * Killing server (pid $srv_pid) ..."
|
|
kill $srv_pid >/dev/null 2>/dev/null
|
|
fi
|
|
}
|
|
|
|
cleanup() {
|
|
stop_server
|
|
stop_proxy
|
|
exit 129
|
|
}
|
|
|
|
trap cleanup INT TERM HUP
|
|
|
|
# Extract the proxy parameters
|
|
tpxy_cmd_snippet='"$TPXY_BIN"'
|
|
while [ $# -ne 0 ] && [ "$1" != "--" ]; do
|
|
tail="$1" quoted=""
|
|
while [ -n "$tail" ]; do
|
|
case "$tail" in
|
|
*\'*) quoted="${quoted}${tail%%\'*}'\\''" tail="${tail#*\'}";;
|
|
*) quoted="${quoted}${tail}"; tail=; false;;
|
|
esac
|
|
done
|
|
tpxy_cmd_snippet="$tpxy_cmd_snippet '$quoted'"
|
|
shift
|
|
done
|
|
unset tail quoted
|
|
if [ $# -eq 0 ]; then
|
|
echo " * No server arguments (must be preceded by \" -- \") - exit"
|
|
exit 3
|
|
fi
|
|
shift
|
|
|
|
dtls_enabled=
|
|
ipv6_in_use=
|
|
server_port_orig=
|
|
server_addr_orig=
|
|
for param; do
|
|
case "$param" in
|
|
server_port=*) server_port_orig="${param#*=}";;
|
|
server_addr=*:*) server_addr_orig="${param#*=}"; ipv6_in_use=1;;
|
|
server_addr=*) server_addr_orig="${param#*=}";;
|
|
dtls=[!0]*) dtls_enabled=1;;
|
|
esac
|
|
done
|
|
|
|
if [ -z "$dtls_enabled" ] || [ -n "$ipv6_in_use" ]; then
|
|
echo >&2 "$0: Couldn't find DTLS enabling, or IPv6 is in use - immediate fallback to server application..."
|
|
if [ $VERBOSE -gt 0 ]; then
|
|
echo "[ $SRV_BIN $* ]"
|
|
fi
|
|
exec "$SRV_BIN" "$@"
|
|
fi
|
|
|
|
if [ -z "$server_port_orig" ]; then
|
|
server_port_orig=4433
|
|
fi
|
|
echo " * Server port: $server_port_orig"
|
|
tpxy_cmd_snippet="$tpxy_cmd_snippet \"listen_port=\$server_port_orig\""
|
|
tpxy_cmd_snippet="$tpxy_cmd_snippet \"server_port=\$server_port\""
|
|
|
|
if [ -n "$server_addr_orig" ]; then
|
|
echo " * Server address: $server_addr_orig"
|
|
tpxy_cmd_snippet="$tpxy_cmd_snippet \"server_addr=\$server_addr_orig\""
|
|
tpxy_cmd_snippet="$tpxy_cmd_snippet \"listen_addr=\$server_addr_orig\""
|
|
fi
|
|
|
|
server_port=$(( server_port_orig + 1 ))
|
|
set -- "$@" "server_port=$server_port"
|
|
echo " * Intermediate port: $server_port"
|
|
|
|
echo " * Start proxy in background ..."
|
|
if [ $VERBOSE -gt 0 ]; then
|
|
echo "[ $tpxy_cmd_snippet ]"
|
|
fi
|
|
eval exec "$tpxy_cmd_snippet" >/dev/null 2>&1 &
|
|
tpxy_pid=$!
|
|
|
|
if [ $VERBOSE -gt 0 ]; then
|
|
echo " * Proxy ID: $TPXY_PID"
|
|
fi
|
|
|
|
echo " * Starting server ..."
|
|
if [ $VERBOSE -gt 0 ]; then
|
|
echo "[ $SRV_BIN $* ]"
|
|
fi
|
|
|
|
exec "$SRV_BIN" "$@" >&2 &
|
|
srv_pid=$!
|
|
|
|
wait $srv_pid
|
|
|
|
stop_proxy
|
|
return 0
|