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#!/bin/sh /etc/rc.common
# Copyright (C) 2017 Michael Heimpold
START=99
STOP=10
USE_PROCD=1
PROG=/usr/sbin/ser2net
STATICCFGFILE="/etc/ser2net.conf"
DYNAMICCFGFILE="/tmp/ser2net.conf"
list_cb_append() {
local var="$2"
local value="$1"
local sep="${3:- }"
eval "export ${NO_EXPORT:+-n} -- \"$var=\${$var:+\${$var}\${value:+\$sep}}\$value\""
}
append_bool() {
local var="$1"
local key="$2"
local val="$3"
local uc="$4"
local s=""
[ "$uc" -eq 1 ] && key=`echo "$key" | tr '[a-z]' '[A-Z]'`
[ "$val" -eq 0 ] && s="-"
append "$var" "$s$key"
}
ser2net_default() {
local cfg="$1"
local key val
for key in speed baudrate databits stopbits parity chardelay_scale chardelay_min; do
config_get val "$cfg" "$key"
[ -n "$val" ] || continue
case "$key" in
baudrate) key="speed" ;;
hangup_when_done) ;;
telnet_brk_on_sync) ;;
deassert_CTS_DCD_DSR_on_connect) ;;
*) key=`echo "$key" | tr '_' '-'`
esac
echo "DEFAULT:$key:$val"
done
for key in chardelay deassert_CTS_DCD_DSR_on_connect hangup_when_done kickolduser \
local nobreak remctl rtscts telnet_brk_on_sync xonxoff; do
config_get_bool val "$cfg" "$key"
[ -n "$val" ] || continue
[ "$val" -eq 0 ] && val="false" || val="true"
echo "DEFAULT:$key:$val"
done
echo
}
ser2net_controlport() {
local cfg="$1"
local enabled host port
config_get_bool enabled "$cfg" enabled 0
[ "$enabled" -eq 0 ] && return 0
config_get host "$cfg" host
config_get port "$cfg" port
echo -e "CONTROLPORT:${host:+$host,}$port\n"
}
ser2net_led() {
local cfg="$1"
local driver device state duration
config_get driver "$cfg" driver sysfs
config_get device "$cfg" device
config_get state "$cfg" state 1
config_get duration "$cfg" duration 20
echo -e "LED:$cfg:$driver:device=$device state=$state duration=$duration\n"
}
ser2net_proxy() {
local cfg="$1"
local enabled port protocol timeout device baudrate databits parity stopbits
local led_tx led_rx key boolval options
config_get_bool enabled "$cfg" enabled 0
[ "$enabled" -eq 0 ] && return 0
config_get port "$cfg" port
[ "$port" -le 0 -o "$port" -gt 65535 ] && return 1
config_get protocol "$cfg" protocol
case "$protocol" in
raw|rawlp|telnet|off) ;;
*) return 1
esac
config_get timeout "$cfg" timeout 0
config_get device "$cfg" device
[ -z "$device" ] && return 1
config_get baudrate "$cfg" baudrate
[ -n "$baudrate" ] && append options "$baudrate"
config_get databits "$cfg" databits
if [ -n "$databits" ]; then
[ "$databits" -lt 5 -o "$databits" -gt 8 ] && return 1
append options "${databits}DATABITS"
fi
config_get parity "$cfg" parity
parity=`echo "$parity" | tr '[a-z]' '[A-Z]'`
case "$parity" in
EVEN|ODD|NONE|MARK|SPACE) append options "$parity" ;;
"") ;;
*) return 1
esac
config_get stopbits "$cfg" stopbits
case "$stopbits" in
1) append options "${stopbits}STOPBIT" ;;
2) append options "${stopbits}STOPBITS" ;;
"") ;;
*) return 1
esac
config_get led_tx "$cfg" led_tx
[ -n "$led_tx" ] && append options "led-tx=$led_tx"
config_get led_rx "$cfg" led_rx
[ -n "$led_rx" ] && append options "led-rx=$led_rx"
for key in rtscts local xonxoff nobreak hangup_when_done; do
config_get_bool boolval "$cfg" "$key"
[ -n "$boolval" ] || continue
append_bool options "$key" "$boolval" 1
done
for key in chardelay telnet_brk_on_sync kickolduser remctl; do
config_get_bool boolval "$cfg" "$key"
[ -n "$boolval" ] || continue
append_bool options "$key" "$boolval" 0
done
config_list_foreach "$cfg" options list_cb_append options
if [ "`echo "$device" | sed 's/://g'`" != "$device" ]; then
echo "DEVICE:$cfg:$device"
device="$cfg"
fi
echo -e "$port:$protocol:$timeout:$device:$options\n"
}
start_service() {
local enabled
config_load ser2net
config_get_bool enabled global enabled 0
[ "$enabled" -gt 0 ] || return 0
cat "$STATICCFGFILE" - 2>/dev/null <<-EOF > "$DYNAMICCFGFILE"
#
# Following part is auto-generated from UCI settings in /etc/config/ser2net
#
EOF
config_foreach ser2net_controlport controlport >> "$DYNAMICCFGFILE"
config_foreach ser2net_default default >> "$DYNAMICCFGFILE"
config_foreach ser2net_led led >> "$DYNAMICCFGFILE"
config_foreach ser2net_proxy proxy >> "$DYNAMICCFGFILE"
procd_open_instance
procd_set_param command "$PROG" -n -c "$DYNAMICCFGFILE"
procd_set_param file "$DYNAMICCFGFILE"
procd_close_instance
}
service_triggers() {
procd_add_reload_trigger "ser2net"
}
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