#!/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}
}

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

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

    if [ `iptables -L -v | grep -c ${IFACE}` -eq 0 ]; then
        cmd_run "iptables" "iptables -I INPUT -i ${IFACE} -j ACCEPT"
        cmd_run "iptables" "iptables -I FORWARD -i ${IFACE} -m state --state NEW -j ACCEPT"
        cmd_run "iptables" "iptables -I FORWARD -p tcp --tcp-flags SYN,RST SYN -j TCPMSS --clamp-mss-to-pmtu"
    fi

    if [ `ebtables -t broute -L | grep -ice "-p ipv4 -i ${IFACE} -j DROP"` -eq 0 ]; then
        cmd_run "ebtables" "ebtables -t broute -I BROUTING -p ipv4 -i ${IFACE} -j DROP"
    fi

    #if [ `ebtables -t broute -L | grep -ice "-p arp -i ${IFACE} - DROP"` -eq 0 ]; then
    #    cmd_run "ebtables" "ebtables -t broute -I BROUTING -p arp -i ${IFACE} -j DROP"
    #fi

    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},6,192.168.1.1" ${DNSMASQ_CONF}
    fi

    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