OpenWrt – Rev 1

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#!/bin/sh

CFG=/etc/board.json

. /usr/share/libubox/jshn.sh

[ -s $CFG ] || /bin/board_detect || exit 1
[ -s /etc/config/network -a -s /etc/config/system ] && exit 0

generate_static_network() {
        uci -q batch <<-EOF
                delete network.loopback
                set network.loopback='interface'
                set network.loopback.ifname='lo'
                set network.loopback.proto='static'
                set network.loopback.ipaddr='127.0.0.1'
                set network.loopback.netmask='255.0.0.0'
        EOF
                [ -e /proc/sys/net/ipv6 ] && {
                        uci -q batch <<-EOF
                                delete network.globals
                                set network.globals='globals'
                                set network.globals.ula_prefix='auto'
                        EOF
                }

        if json_is_a dsl object; then
                json_select dsl
                        if json_is_a atmbridge object; then
                                json_select atmbridge
                                        local vpi vci encaps payload nameprefix
                                        json_get_vars vpi vci encaps payload nameprefix
                                        uci -q batch <<-EOF
                                                delete network.atm
                                                set network.atm='atm-bridge'
                                                set network.atm.vpi='$vpi'
                                                set network.atm.vci='$vci'
                                                set network.atm.encaps='$encaps'
                                                set network.atm.payload='$payload'
                                                set network.atm.nameprefix='$nameprefix'
                                        EOF
                                json_select ..
                        fi

                        if json_is_a modem object; then
                                json_select modem
                                        local type annex firmware tone xfer_mode
                                        json_get_vars type annex firmware tone xfer_mode
                                        uci -q batch <<-EOF
                                                delete network.dsl
                                                set network.dsl='dsl'
                                                set network.dsl.annex='$annex'
                                                set network.dsl.firmware='$firmware'
                                                set network.dsl.tone='$tone'
                                                set network.dsl.xfer_mode='$xfer_mode'
                                        EOF
                                json_select ..
                        fi
                json_select ..
        fi
}

addr_offset=2
generate_network() {
        local ifname macaddr protocol type ipaddr netmask

        json_select network
                json_select "$1"
                        json_get_vars ifname macaddr protocol ipaddr netmask
                json_select ..
        json_select ..

        [ -n "$ifname" ] || return

        # force bridge for multi-interface devices (and lan)
        case "$1:$ifname" in
                *\ * | lan:*) type="bridge" ;;
        esac

        uci -q batch <<-EOF
                delete network.$1
                set network.$1='interface'
                set network.$1.type='$type'
                set network.$1.ifname='$ifname'
                set network.$1.proto='none'
        EOF

        [ -n "$macaddr" ] && uci -q batch <<-EOF
                delete network.$1_dev
                set network.$1_dev='device'
                set network.$1_dev.name='$ifname'
                set network.$1_dev.macaddr='$macaddr'
        EOF

        case "$protocol" in
                static)
                        local ipad
                        case "$1" in
                                lan) ipad=${ipaddr:-"192.168.1.1"} ;;
                                *) ipad=${ipaddr:-"192.168.$((addr_offset++)).1"} ;;
                        esac

                        netm=${netmask:-"255.255.255.0"}

                        uci -q batch <<-EOF
                                set network.$1.proto='static'
                                set network.$1.ipaddr='$ipad'
                                set network.$1.netmask='$netm'
                        EOF
                        [ -e /proc/sys/net/ipv6 ] && uci set network.$1.ip6assign='60'
                ;;

                dhcp)
                        # fixup IPv6 slave interface if parent is a bridge
                        [ "$type" = "bridge" ] && ifname="br-$1"

                        uci set network.$1.proto='dhcp'
                        [ -e /proc/sys/net/ipv6 ] && {
                                uci -q batch <<-EOF
                                        delete network.${1}6
                                        set network.${1}6='interface'
                                        set network.${1}6.ifname='$ifname'
                                        set network.${1}6.proto='dhcpv6'
                                EOF
                        }
                ;;

                pppoe)
                        uci -q batch <<-EOF
                                set network.$1.proto='pppoe'
                                set network.$1.username='username'
                                set network.$1.password='password'
                        EOF
                        [ -e /proc/sys/net/ipv6 ] && {
                                uci -q batch <<-EOF
                                        set network.$1.ipv6='1'
                                        delete network.${1}6
                                        set network.${1}6='interface'
                                        set network.${1}6.ifname='@${1}'
                                        set network.${1}6.proto='dhcpv6'
                                EOF
                        }
                ;;
        esac
}

generate_switch_vlans_ports() {
        local switch="$1"
        local port ports role roles num attr val

        #
        # autogenerate vlans
        #

        if json_is_a roles array; then
                json_get_keys roles roles
                json_select roles

                for role in $roles; do
                        json_select "$role"
                                json_get_vars ports
                        json_select ..

                        uci -q batch <<-EOF
                                add network switch_vlan
                                set network.@switch_vlan[-1].device='$switch'
                                set network.@switch_vlan[-1].vlan='$role'
                                set network.@switch_vlan[-1].ports='$ports'
                        EOF
                done

                json_select ..
        fi


        #
        # write port specific settings
        #

        if json_is_a ports array; then
                json_get_keys ports ports
                json_select ports

                for port in $ports; do
                        json_select "$port"
                                json_get_vars num

                                if json_is_a attr object; then
                                        json_get_keys attr attr
                                        json_select attr
                                                uci -q batch <<-EOF
                                                        add network switch_port
                                                        set network.@switch_port[-1].device='$switch'
                                                        set network.@switch_port[-1].port=$num
                                                EOF

                                                for attr in $attr; do
                                                        json_get_var val "$attr"
                                                        uci -q set network.@switch_port[-1].$attr="$val"
                                                done
                                        json_select ..
                                fi
                        json_select ..
                done

                json_select ..
        fi
}

generate_switch() {
        local key="$1"
        local vlans

        json_select switch
        json_select "$key"
        json_get_vars enable reset blinkrate cpu_port

        uci -q batch <<-EOF
                add network switch
                set network.@switch[-1].name='$key'
                set network.@switch[-1].reset='$reset'
                set network.@switch[-1].enable_vlan='$enable'
                set network.@switch[-1].blinkrate='$blinkrate'
        EOF

        generate_switch_vlans_ports "$1"

        json_select ..
        json_select ..
}


generate_static_system() {
        uci -q batch <<-EOF
                delete system.@system[0]
                add system system
                set system.@system[-1].hostname='OpenWrt'
                set system.@system[-1].timezone='UTC'
                set system.@system[-1].ttylogin='0'
                set system.@system[-1].log_size='64'
                set system.@system[-1].urandom_seed='0'

                delete system.ntp
                set system.ntp='timeserver'
                set system.ntp.enabled='1'
                set system.ntp.enable_server='0'
                add_list system.ntp.server='0.openwrt.pool.ntp.org'
                add_list system.ntp.server='1.openwrt.pool.ntp.org'
                add_list system.ntp.server='2.openwrt.pool.ntp.org'
                add_list system.ntp.server='3.openwrt.pool.ntp.org'
        EOF

        if json_is_a system object; then
                json_select system
                        local hostname
                        if json_get_var hostname hostname; then
                                uci -q set "system.@system[-1].hostname=$hostname"
                        fi

                        if json_is_a ntpserver array; then
                                local keys key
                                json_get_keys keys ntpserver
                                json_select ntpserver
                                        uci -q delete "system.ntp.server"

                                        for key in $keys; do
                                                local server
                                                if json_get_var server "$key"; then
                                                        uci -q add_list "system.ntp.server=$server"
                                                fi
                                        done
                                json_select ..
                        fi
                json_select ..
        fi
}

generate_rssimon() {
        local key="$1"
        local cfg="rssid_$key"
        local refresh threshold

        json_select rssimon
        json_select "$key"
        json_get_vars refresh threshold
        json_select ..
        json_select ..

        uci -q batch <<-EOF
                delete system.$cfg
                set system.$cfg='rssid'
                set system.$cfg.dev='$key'
                set system.$cfg.refresh='$refresh'
                set system.$cfg.threshold='$threshold'
        EOF
}

generate_led() {
        local key="$1"
        local cfg="led_$key"

        json_select led
        json_select "$key"
        json_get_vars name sysfs type trigger default

        uci -q batch <<-EOF
                delete system.$cfg
                set system.$cfg='led'
                set system.$cfg.name='$name'
                set system.$cfg.sysfs='$sysfs'
                set system.$cfg.trigger='$trigger'
                set system.$cfg.default='$default'
        EOF

        case "$type" in
                gpio)
                        local gpio inverted
                        json_get_vars gpio inverted
                        uci -q batch <<-EOF
                                set system.$cfg.trigger='gpio'
                                set system.$cfg.gpio='$gpio'
                                set system.$cfg.inverted='$inverted'
                        EOF
                ;;

                netdev)
                        local device mode
                        json_get_vars device mode
                        uci -q batch <<-EOF
                                set system.$cfg.trigger='netdev'
                                set system.$cfg.mode='$mode'
                                set system.$cfg.dev='$device'
                        EOF
                ;;

                usb)
                        local device
                        json_get_vars device
                        uci -q batch <<-EOF
                                set system.$cfg.trigger='usbdev'
                                set system.$cfg.interval='50'
                                set system.$cfg.dev='$device'
                        EOF
                ;;

                usbport)
                        local ports port
                        json_get_values ports ports
                        uci set system.$cfg.trigger='usbport'
                        for port in $ports; do
                                uci add_list system.$cfg.port=$port
                        done
                ;;

                rssi)
                        local iface minq maxq offset factor
                        json_get_vars iface minq maxq offset factor
                        uci -q batch <<-EOF
                                set system.$cfg.trigger='rssi'
                                set system.$cfg.iface='rssid_$iface'
                                set system.$cfg.minq='$minq'
                                set system.$cfg.maxq='$maxq'
                                set system.$cfg.offset='$offset'
                                set system.$cfg.factor='$factor'
                        EOF
                ;;

                switch)
                        local port_mask speed_mask mode
                        json_get_vars port_mask speed_mask mode
                        uci -q batch <<-EOF
                                set system.$cfg.port_mask='$port_mask'
                                set system.$cfg.speed_mask='$speed_mask'
                                set system.$cfg.mode='$mode'
                        EOF
                ;;

                portstate)
                        local port_state
                        json_get_vars port_state
                        uci -q batch <<-EOF
                                set system.$cfg.port_state='$port_state'
                        EOF
                ;;

                timer|oneshot)
                        local delayon delayoff
                        json_get_vars delayon delayoff
                        uci -q batch <<-EOF
                                set system.$cfg.trigger='$type'
                                set system.$cfg.delayon='$delayon'
                                set system.$cfg.delayoff='$delayoff'
                        EOF
                ;;
        esac

        json_select ..
        json_select ..
}

generate_gpioswitch() {
        local cfg="$1"

        json_select gpioswitch
                json_select "$cfg"
                        local name pin default
                        json_get_vars name pin default
                        uci -q batch <<-EOF
                                delete system.$cfg
                                set system.$cfg='gpio_switch'
                                set system.$cfg.name='$name'
                                set system.$cfg.gpio_pin='$pin'
                                set system.$cfg.value='$default'
                        EOF
                json_select ..
        json_select ..
}

json_init
json_load "$(cat ${CFG})"

if [ ! -s /etc/config/network ]; then
        touch /etc/config/network
        generate_static_network

        json_get_keys keys network
        for key in $keys; do generate_network $key; done

        json_get_keys keys switch
        for key in $keys; do generate_switch $key; done
fi

if [ ! -s /etc/config/system ]; then
        touch /etc/config/system
        generate_static_system

        json_get_keys keys rssimon
        for key in $keys; do generate_rssimon $key; done

        json_get_keys keys gpioswitch
        for key in $keys; do generate_gpioswitch $key; done

        json_get_keys keys led
        for key in $keys; do generate_led $key; done
fi
uci commit