#! /bin/bash

mii_check() {
    local conn_state=$(mii-tool $1 2> /dev/null)
    local ret=$?
    if echo $conn_state|grep "no link" &> /dev/null; then
        if [[ $ret -eq 0 ]]; then
            return 1
        fi
    fi
    return 0
}

ethernet_up() {

    
    if [[ ! -e /sys/class/net/$INTERFACE ]]; then
        if ! echo "$INTERFACE"|grep ":"; then
            err_append "Interface $INTERFACE does not exist"
        fi
    fi  

	if ! mii_check $INTERFACE; then
        err_append "No connection available"	
    	return 1
    fi
    
    case $IP in
    dhcp)
        # Check if DHCP_TIMEOUT was set if not set a default value
        [[ -z "$DHCP_TIMEOUT" ]] && DHCP_TIMEOUT=10

        if checkyesno $DHCLIENT; then
            rm -r /var/run/dhclient-${INTERFACE}.pid >/dev/null 2>&1
            if ! dhclient -q -e TIMEOUT=$DHCP_TIMEOUT -pf /var/run/dhclient-${INTERFACE}.pid; then
                err_append "DHCP IP lease attempt failed"
                return 1
            fi
        else
            # Clear remaining pid files. 
            rm -f /var/run/dhcpcd-${INTERFACE}.{pid,cache} >/dev/null 2>&1
            # If using own dns, tell dhcpcd to NOT replace resolv.conf
            [[ -n "$DNS1" ]] && DHCP_OPTIONS="-R $DHCP_OPTIONS"
            # Start dhcpcd
            if ! dhcpcd -L -t $DHCP_TIMEOUT $DHCP_OPTIONS $INTERFACE; then
                err_append "DHCP IP lease attempt failed"
                return 1
            fi 
        fi
        # TODO: add support for $section:ifconfig for other stuff, like mtu or mac?
        ;;
    static)
        if ! ifconfig $INTERFACE $IFOPTS up; then
            err_append "Could not bring interface up"
            return 1
        fi

        # bring up the default route (gateway)
        if [[ -n "$GATEWAY" ]]; then
            if ! route add default gw $GATEWAY; then
                err_append "Adding gateway $GATEWAY failed"
                return 1
            fi 
        fi
        ;;
      *)
        err_append "Profile error: IP must be either 'dhcp' or 'static'"
        return 1
        ;;
    esac

    # set the hostname
    if [[ -n "$HOSTNAME" ]]; then
        if ! hostname $HOSTNAME; then
            err_append "Cannot set hostname"
            return 1
        fi
    fi

    # Generate a new resolv.conf
    if [[ -n "$DNS1" ]]; then
        : >/etc/resolv.conf 
        [[ -n "$DOMAIN" ]] && echo "domain $DOMAIN"   >>/etc/resolv.conf
        [[ -n "$SEARCH" ]] && echo "search $SEARCH"   >>/etc/resolv.conf
        [[ -n "$DNS1" ]]   && echo "nameserver $DNS1" >>/etc/resolv.conf
        [[ -n "$DNS2" ]]   && echo "nameserver $DNS2" >>/etc/resolv.conf
    fi
    return 0
}

ethernet_down() {
    case $IP in
    dhcp)
        if checkyesno $DHCLIENT; then
            if [[ -f /var/run/dhclient-${INTERFACE}.pid ]]; then
                kill `cat /var/run/dhclient-${INTERFACE}.pid`
            fi
        else
            if [[ -f /var/run/dhcpcd-${INTERFACE}.pid ]]; then
                dhcpcd -x $INTERFACE
            fi
        fi
        ;;
    static)
        [[ -n "$GATEWAY" ]] && route del default gw $GATEWAY
        ;;
    esac
    ifconfig $INTERFACE 0.0.0.0
}

ethernet_clean_scope() {
    unset DOMAIN SEARCH DNS1 DNS2
    unset GATEWAY IFOPTS HOSTNAME DHCP_OPTIONS DHCP_TIMEOUT DHCLIENT
    unset INTERFACE CONNECTION
}
# vim: set ts=4 et sw=4: