#!/bin/sh
CONFIG=1
source /usr/sbin/helper.sh

DNSMASQ_CONF=/tmp/etc/dnsmasq.conf

if [ `cat ${DNSMASQ_CONF} | grep -c "log-dhcp"` -eq 0 ]; then
    pc_append "log-dhcp" ${DNSMASQ_CONF}
fi

cmd_log () {
    logger "${2}[${1}] - ${3}"
}

cmd_run () {
    ERR=`${2}`
    ERRCODE=$?
    cmd_log ${ERRCODE} "${1}" "${ERR}: ${2}"
    return ${ERRCODE}
}

iptable () {
    if [ `iptables -L ${2} -v | grep -c ""${3}.*${1}""` -eq 0 ]; then
        cmd_run "iptables" "iptables -I ${2} -i ${1} -j ${3}"
    else
        cmd_run "iptables" "iptables -D ${2} -i ${1} -j ${3}"
        iptable ${1} ${2} ${3}
    fi
}

ebtable () {
    CMD="-p ${2} -i ${1} -j ${3}"
    if [ `ebtables -t broute -L | grep -ice "${CMD}"` -eq 0 ]; then
        cmd_run "ebtables" "ebtables -t broute -I BROUTING ${CMD}"
    else
        cmd_run "ebtables" "ebtables -t broute -D BROUTING ${CMD}"
        ebtable ${1} ${2} ${3}
    fi
}

assign_ip () {
    IFACE=${1}
    IFACE_NWRK_ADDR=${2}
    IFACE_INET_ADDR=${3}
    IFACE_NETMASK=${4}
    
    DHCP_START=${5}
    DHCP_END=${6}

    if [ `cat ${DNSMASQ_CONF} | grep -c ${IFACE}` -eq 0 ]; then
        logger "dnsmasq-dhcp: Configure ${IFACE} to have special DHCP"
        pc_append "interface=${IFACE}" ${DNSMASQ_CONF}
        pc_append "dhcp-range=${IFACE},${DHCP_START},${DHCP_END},${IFACE_NETMASK},24h" ${DNSMASQ_CONF}
        pc_append "dhcp-option=${IFACE},3,${IFACE_INET_ADDR}" ${DNSMASQ_CONF}
        pc_append "dhcp-option=${IFACE},6,8.8.8.8,8.8.4.4" ${DNSMASQ_CONF}
        pc_append "dhcp-option=${IFACE},252,\"\n\"" ${DNSMASQ_CONF}
    fi

    cmd_run "ifconfig" "ifconfig ${IFACE} ${IFACE_INET_ADDR} netmask ${IFACE_NETMASK} up"

    ebtable "${IFACE}" "ipv4" "DROP"
    ebtable "${IFACE}" "ipv6" "DROP"
    ebtable "${IFACE}" "arp" "DROP"

    iptable "${IFACE}" "FORWARD" "ACCEPT"
    iptable "${IFACE}" "INPUT" "ACCEPT"

    #cmd_run "ip-route" "ip route flush cache"

}


killall dnsmasq
#assign_ip "vlan1" "192.168.1.0" "192.168.1.1" "255.255.255.0" "192.168.1.1" "192.168.1.127" #/25
assign_ip "wl0.1" "192.168.2.0" "192.168.2.1" "255.255.255.0" "192.168.2.1" "192.168.2.128" #/25
assign_ip "wl1.1" "192.168.2.0" "192.168.2.1" "255.255.255.0" "192.168.2.1" "192.168.2.128" #/25
assign_ip "wl2.1" "192.168.2.0" "192.168.2.1" "255.255.255.0" "192.168.2.1" "192.168.2.128" #/25
assign_ip "wl0.2" "192.168.2.0" "192.168.2.1" "255.255.255.0" "192.168.2.129" "192.168.2.255" #/25

cat ${DNSMASQ_CONF}

dnsmasq --log-async