#! /bin/bash
. /usr/lib/network/network

ethernet_up() {
    load_profile "$1"

    if [[ ! -e "/sys/class/net/$INTERFACE" ]]; then
        if ! echo "$INTERFACE" | fgrep -q ":"; then
            report_fail "interface $INTERFACE does not exist"
            return 1
        fi
    fi  

    report_debug ethernet_up ifup
    set_interface up-old "$INTERFACE"

    # don't think it's possible to detect carrier using ifconfig alone (at least, not without ifdown/ifupping the interface)
    if [[ $(cat "/sys/class/net/$INTERFACE/carrier" 2>/dev/null) -ne 1 ]]; then   # gives err if iface inactive (i.e. ifdown)
       report_fail "No connection"
       return 1
    fi

    if checkyesno "${AUTH8021X:-no}"; then 
        . "$SUBR_DIR/8021x"
        [[ -z "$WPA_CONF" ]] && WPA_CONF="/etc/wpa_supplicant.conf"
        [[ -z "$WPA_OPTS" ]] && WPA_OPTS="-Dwired"
        report_debug ethernet_up start_wpa "$INTERFACE" "$WPA_CONF" "$WPA_OPTS"
        if ! start_wpa "$INTERFACE" "$WPA_CONF" "$WPA_OPTS"; then
            report_fail "wpa_supplicant did not start, possible configuration error"
            return 1
        fi
        if ! wpa_check "$INTERFACE"; then
            # ignore quirk nodown---is that appropriate?
            # this adds a flush call as well---is that appropriate?
            set_interface forcedown-old "$INTERFACE"
            report_fail "WPA Authentication/Association Failed"
            return 1
        fi 
    fi

    case "$IP" in
    dhcp)
        if checkyesno "${DHCLIENT:-no}"; then
            rm -r "/var/run/dhclient-${INTERFACE}.pid" >/dev/null 2>&1
            report_debug ethernet_up dhclient -q -e TIMEOUT="${DHCP_TIMEOUT:-10}" -pf "/var/run/dhclient-$INTERFACE.pid" "$INTERFACE"
            if ! dhclient -q -e TIMEOUT="${DHCP_TIMEOUT:-10}" -pf "/var/run/dhclient-${INTERFACE}.pid" "$INTERFACE"; then
                report_fail "DHCP IP lease attempt failed."
                return 1
            fi
        else
            # Clear remaining pid files. 
            rm -f "/var/run/dhcpcd-$INTERFACE".{pid,cache} >/dev/null 2>&1
            # If using own dns, tell dhcpcd to NOT replace resolv.conf
            [[ -n "$DNS1" || -n "$DNS" ]] && DHCP_OPTIONS="-C resolv.conf $DHCP_OPTIONS"
            # Start dhcpcd
            report_debug ethernet_up dhcpcd -qL -t "${DHCP_TIMEOUT:-10}" $DHCP_OPTIONS "$INTERFACE"
            dhcpcd -qL -t "${DHCP_TIMEOUT:-10}" $DHCP_OPTIONS "$INTERFACE" 2>&1 | report_debug "$(cat)"
            if [[ "$PIPESTATUS" -ne 0 ]]; then
                report_fail "DHCP IP lease attempt failed."
                return 1
            fi 
        fi
        if [[ -n "$IFOPTS" ]]; then
            report_debug ethernet_up ifup $IFOPTS    
            ifconfig "$INTERFACE" $IFOPTS
        fi
        ;;
    static)
        report_debug ethernet_up ifup $IFOPTS
        if ! ifconfig "$INTERFACE" $IFOPTS up; then
            report_fail "Bringing interface up failed."
            return 1
        fi

        # bring up the default route (gateway)
        if [[ -n "$GATEWAY" ]]; then
            report_debug ethernet_up route add default gw "$GATEWAY"
            if ! route add default gw "$GATEWAY"; then
                # JP: don't we want to add this to all the aborts?
                # ignore quirk nodown---is that appropriate?
                # this adds a flush call as well---is that appropriate?
                set_interface forcedown-old "$INTERFACE"
                report_fail "Adding gateway $GATEWAY failed."
                return 1
            fi 
        fi
        ;;
      *)
        report_fail "IP must be either 'dhcp' or 'static'."
        return 1
        ;;
    esac

    # set the hostname
    if [[ -n "$HOSTNAME" ]]; then
        report_debug ethernet_up hostname "$HOSTNAME"
        if ! hostname "$HOSTNAME"; then
            report_fail "Setting hostname $HOSTNAME failed."
            return 1
        fi
    fi

    # Generate a new resolv.conf
    if [[ -n "$DNS1" || -n "$DNS" ]]; 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

        if [[ -n "$DNS" ]]; then
            for dns in "${DNS[@]}"; do
                echo "nameserver $dns" >>/etc/resolv.conf
            done
        fi
    fi
    return 0
}

ethernet_down() {
    load_profile "$1"
    case "$IP" in
    dhcp)
        if checkyesno "${DHCLIENT:-no}"; then
            if [[ -f "/var/run/dhclient-${INTERFACE}.pid" ]]; then
                report_debug ethernet_down kill dhclient
                kill "$(cat "/var/run/dhclient-${INTERFACE}.pid")"
            fi
        else
            if [[ -f "/var/run/dhcpcd-${INTERFACE}.pid" ]]; then
                report_debug ethernet_down dhcpcd -qx "$INTERFACE"
                dhcpcd -qx "$INTERFACE" &>/dev/null
            fi
        fi
        ;;
    static)
        if [[ -n "$GATEWAY" ]]; then
            report_debug ethernet_down route del default gw "$GATEWAY"
            route del default gw "$GATEWAY"
        fi
        ;;
    esac
    
    report_debug ethernet_down ifdown
    # ignore quirk nodown---is that appropriate?
    # this adds a flush call as well---is that appropriate?
    set_interface forcedown-old "$INTERFACE"
}

# Returns status of profile - is it still functional?
ethernet_status() {
    if ! ip link show dev ra0 | fgrep -q "state UP"; then
        return 1
    fi
}

ethernet_$1 "$2"
exit $?
# vim: set ts=4 et sw=4: