afc4f892d1
Don't mangle arguments containing spaces and other special characters, pass them unchanged to the proxy or server as applicable. More robust parsing of server parameters: don't hit on partial words; use ssl_server2's default values. Minor style improvements.
117 lines
2.8 KiB
Bash
Executable file
117 lines
2.8 KiB
Bash
Executable file
#!/bin/sh
|
|
# -*-sh-basic-offset: 4-*-
|
|
# Usage: udp_proxy_wrapper.sh [PROXY_PARAM...] -- [SERVER_PARAM...]
|
|
|
|
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 $srv_pid >/dev/null 2>/dev/null
|
|
fi
|
|
}
|
|
|
|
cleanup() {
|
|
stop_server
|
|
stop_proxy
|
|
return 1
|
|
}
|
|
|
|
trap cleanup INT TERM HUP
|
|
|
|
# Extract the proxy parameters
|
|
tpxy_cmd_snippet='"$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 "[ $tpxy_cmd_snippet ]"
|
|
fi
|
|
eval "$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 $* ]"
|
|
fi
|
|
|
|
"$SRV_BIN" "$@" >&2 &
|
|
srv_pid=$!
|
|
|
|
wait $srv_pid
|
|
|
|
stop_proxy
|
|
return 0
|