187 lines
4.3 KiB
Bash
187 lines
4.3 KiB
Bash
#!/bin/sh /etc/rc.common
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# Copyright (C) 2017 Michael Heimpold
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START=75
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STOP=10
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USE_PROCD=1
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PROG=/usr/sbin/ser2net
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STATICCFGFILE="/etc/ser2net.conf"
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DYNAMICCFGFILE="/tmp/ser2net.conf"
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list_cb_append() {
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local var="$2"
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local value="$1"
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local sep="${3:- }"
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eval "export ${NO_EXPORT:+-n} -- \"$var=\${$var:+\${$var}\${value:+\$sep}}\$value\""
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}
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append_bool() {
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local var="$1"
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local key="$2"
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local val="$3"
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local uc="$4"
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local s=""
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[ "$uc" -eq 1 ] && key=`echo "$key" | tr '[a-z]' '[A-Z]'`
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[ "$val" -eq 0 ] && s="-"
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append "$var" "$s$key"
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}
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ser2net_default() {
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local cfg="$1"
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local key val
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for key in speed baudrate databits stopbits parity chardelay_scale chardelay_min; do
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config_get val "$cfg" "$key"
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[ -n "$val" ] || continue
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case "$key" in
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baudrate) key="speed" ;;
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hangup_when_done) ;;
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telnet_brk_on_sync) ;;
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deassert_CTS_DCD_DSR_on_connect) ;;
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*) key=`echo "$key" | tr '_' '-'`
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esac
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echo "DEFAULT:$key:$val"
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done
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for key in chardelay deassert_CTS_DCD_DSR_on_connect hangup_when_done kickolduser \
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local nobreak remctl rtscts telnet_brk_on_sync xonxoff; do
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config_get_bool val "$cfg" "$key"
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[ -n "$val" ] || continue
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[ "$val" -eq 0 ] && val="false" || val="true"
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echo "DEFAULT:$key:$val"
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done
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echo
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}
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ser2net_controlport() {
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local cfg="$1"
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local enabled host port
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config_get_bool enabled "$cfg" enabled 0
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[ "$enabled" -eq 0 ] && return 0
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config_get host "$cfg" host
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config_get port "$cfg" port
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echo -e "CONTROLPORT:${host:+$host,}$port\n"
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}
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ser2net_led() {
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local cfg="$1"
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local driver device state duration
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config_get driver "$cfg" driver sysfs
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config_get device "$cfg" device
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config_get state "$cfg" state 1
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config_get duration "$cfg" duration 20
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echo -e "LED:$cfg:$driver:device=$device state=$state duration=$duration\n"
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}
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ser2net_proxy() {
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local cfg="$1"
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local enabled port protocol timeout device baudrate databits parity stopbits
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local led_tx led_rx key boolval options
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config_get_bool enabled "$cfg" enabled 0
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[ "$enabled" -eq 0 ] && return 0
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config_get port "$cfg" port
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[ "$port" -le 0 -o "$port" -gt 65535 ] && return 1
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config_get protocol "$cfg" protocol
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case "$protocol" in
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raw|rawlp|telnet|off) ;;
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*) return 1
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esac
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config_get timeout "$cfg" timeout 0
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config_get device "$cfg" device
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[ -z "$device" ] && return 1
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config_get baudrate "$cfg" baudrate
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[ -n "$baudrate" ] && append options "$baudrate"
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config_get databits "$cfg" databits
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if [ -n "$databits" ]; then
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[ "$databits" -lt 5 -o "$databits" -gt 8 ] && return 1
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append options "${databits}DATABITS"
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fi
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config_get parity "$cfg" parity
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parity=`echo "$parity" | tr '[a-z]' '[A-Z]'`
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case "$parity" in
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EVEN|ODD|NONE|MARK|SPACE) append options "$parity" ;;
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"") ;;
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*) return 1
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esac
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config_get stopbits "$cfg" stopbits
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case "$stopbits" in
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1) append options "${stopbits}STOPBIT" ;;
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2) append options "${stopbits}STOPBITS" ;;
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"") ;;
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*) return 1
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esac
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config_get led_tx "$cfg" led_tx
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[ -n "$led_tx" ] && append options "led-tx=$led_tx"
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config_get led_rx "$cfg" led_rx
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[ -n "$led_rx" ] && append options "led-rx=$led_rx"
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for key in rtscts local xonxoff nobreak hangup_when_done; do
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config_get_bool boolval "$cfg" "$key"
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[ -n "$boolval" ] || continue
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append_bool options "$key" "$boolval" 1
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done
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for key in chardelay telnet_brk_on_sync kickolduser remctl; do
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config_get_bool boolval "$cfg" "$key"
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[ -n "$boolval" ] || continue
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append_bool options "$key" "$boolval" 0
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done
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config_list_foreach "$cfg" options list_cb_append options
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if [ "`echo "$device" | sed 's/://g'`" != "$device" ]; then
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echo "DEVICE:$cfg:$device"
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device="$cfg"
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fi
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echo -e "$port:$protocol:$timeout:$device:$options\n"
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}
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start_service() {
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local enabled
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config_load ser2net
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config_get_bool enabled global enabled 0
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[ "$enabled" -gt 0 ] || return 0
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cat "$STATICCFGFILE" - 2>/dev/null <<-EOF > "$DYNAMICCFGFILE"
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#
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# Following part is auto-generated from UCI settings in /etc/config/ser2net
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#
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EOF
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config_foreach ser2net_controlport controlport >> "$DYNAMICCFGFILE"
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config_foreach ser2net_default default >> "$DYNAMICCFGFILE"
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config_foreach ser2net_led led >> "$DYNAMICCFGFILE"
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config_foreach ser2net_proxy proxy >> "$DYNAMICCFGFILE"
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procd_open_instance
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procd_set_param command "$PROG" -n -c "$DYNAMICCFGFILE"
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procd_close_instance
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}
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