2018-01-14 06:21:10 -06:00

133 lines
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#!/bin/sh /etc/rc.common
START=88
STOP=15
NAME=udp2raw
_log() {
logger -p "daemon.$1" -t "$NAME" "$2"
}
has_valid_server() {
local server
for server in $@; do
[ "$(uci_get $NAME $server)" = "servers" ] && return 0
done
return 1
}
create_config() {
local config_file="$1"
echo "# auto-generated config file from /etc/config/udp2raw" > $config_file
echo "-c" >> $config_file
echo "-l ${listen_addr:=127.0.0.1}:${listen_port:=2080}" >> $config_file
echo "-r ${server_addr}:${server_port:=8080}" >> $config_file
[ -n "$raw_mode" ] && echo "--raw-mode ${raw_mode}" >> $config_file
[ -n "$key" ] && echo "--key ${key}" >> $config_file
[ -n "$cipher_mode" ] && echo "--cipher-mode ${cipher_mode}" >> $config_file
[ -n "$auth_mode" ] && echo "--auth-mode ${auth_mode}" >> $config_file
[ $auto_rule -eq 1 ] && echo "--auto-rule" >> $config_file
[ $auto_rule -eq 1 -a $keep_rule -eq 1 ] && echo "--keep-rule" >> $config_file
[ -n "$seq_mode" ] && echo "--seq-mode ${seq_mode}" >> $config_file
[ -n "$lower_level" ] && echo "--lower-level ${lower_level}" >> $config_file
[ -n "$source_ip" ] && echo "--source-ip ${source_ip}" >> $config_file
[ -n "$source_port" ] && echo "--source-port ${source_port}" >> $config_file
[ -n "$log_level" ] && echo "--log-level ${log_level}" >> $config_file
echo "--disable-color" >> $config_file
echo "--wait-lock" >> $config_file
}
validate_config_section() {
local ret=$(/sbin/validate_data "$NAME" general "$1" \
'server:uciname' \
'daemon_user:string:root' \
2> /dev/null)
[ $? -ne 0 ] && return 1
eval "$ret"
}
validate_server_section() {
local ret=$(/sbin/validate_data "$NAME" servers "$1" \
'server_addr:host' \
'server_port:port:8080' \
'listen_addr:ipaddr:127.0.0.1' \
'listen_port:port:2080' \
'raw_mode:or("faketcp", "udp", "icmp"):faketcp' \
'key:string' \
'cipher_mode:or("aes128cbc", "xor", "none"):aes128cbc' \
'auth_mode:or("md5", "crc32", "simple", "none"):md5' \
'auto_rule:bool:1' \
'keep_rule:bool:0' \
'seq_mode:range(0,4)' \
'lower_level:string' \
'source_ip:ipaddr' \
'source_port:port' \
'log_level:range(0,6)' \
2> /dev/null)
[ $? -ne 0 ] && return 1
eval "$ret"
}
start_instance() {
local server="$1"
if [ -z "$server" -o "$server" == "nil" ]; then
return 0
elif ! validate_server_section "$server"; then
_log "err" "Server config validation failed."
return 1
fi
/sbin/validate_data "ipaddr" "$server_addr" >/dev/null 2>&1
[ $? -ne 0 ] && server_addr=$(nslookup "$server_addr" | \
sed -n 's/^Address[[:space:]]*[0-9]*:[[:space:]]*\(\([0-9]\{1,3\}\.\)\{3\}[0-9]\{1,3\}\)$/\1/p')
if [ -z "$server_addr" ]; then
_log "err" "Server address validation failed."
return 1
fi
[ -d /var/etc ] || mkdir -p /var/etc
local config_file="/var/etc/${NAME}.${server}.conf"
create_config "$config_file" || return 1
[ -d "/var/log/${NAME}" ] || mkdir -p "/var/log/${NAME}"
/usr/bin/udp2raw --conf-file "$config_file" >> "/var/log/${NAME}/${NAME}.${server}.log" &
echo $! > "/var/run/${NAME}.${server}.pid"
return 0
}
start() {
pgrep "/usr/bin/${NAME}" >/dev/null 2>&1 && return
if ! validate_config_section "general" ; then
_log "err" "Config validate failed."
return 1
fi
has_valid_server $server || return 1
for srv in $server; do
start_instance $srv
done
}
stop() {
local pids=$(pgrep "/usr/bin/${NAME}" 2> /dev/null)
[ $? -ne 0 ] && return
for pid in $pids; do
kill $pid >/dev/null 2>&1
done
return 0
}
restart() {
stop
sleep 1
start
}