#!/bin/sh
##-----------------------------------------------------------------------------
## rc941.wol - fli4l configuration parameters                      __FLI4LVER__
##
## Creation:     12.10.2002  gk
## Last Update:  $Id$
##
## Copyright (c) 2002-2004 - Georg Kainzbauer <georgkainzbauer@gmx.net>
## Copyright (c) 2004-2006 - Frank Rudolph <fli4l@fr-net.de>
## Copyright (c) 2006-2016 - fli4l-Team <team@fli4l.de>
##
##
## This program is free software; you can redistribute it and/or modify
## it under the terms of the GNU General Public License as published by
## the Free Software Foundation; either version 2 of the License, or
## (at your option) any later version.
##-----------------------------------------------------------------------------


# find the ethX for act. HOST_X_NAME
find_eth ()
{
    [ 0$IP_NET_N -eq 0 ] || for idx in `seq 1 $IP_NET_N`
    do
        eval IP_NET_X='$IP_NET_'$idx''
        case "$IP_NET_X" in
        {*}*)
            continue;
        esac
        eval HOST_X_DEV='$IP_NET_'$idx'_DEV'
        eval net1=`netcalc network $IP_NET_X`
        eval HOST_X_MASK=`echo $IP_NET_X | cut -d"/" -f 2`
        eval HOST_X_NET=`netcalc network $HOST_X_IP/$HOST_X_MASK`
        if [ "$net1" = "$HOST_X_NET" ]
        then
            break
        fi
    done
}

addhost()
{
    eval echo '$HOST_X_MAC $HOST_X_IP $HOST_X_NAME $HOST_X_DEV ' >> /var/run/wol/hosts.mac
}


build_host_list()
{
    [ 0$HOST_N -eq 0 ] || for i in `seq 1 $HOST_N`
    do
        eval HOST_X_MAC='$HOST_'$i'_MAC'
        eval HOST_X_IP='$HOST_'$i'_IP4'
        eval HOST_X_NAME='$HOST_'$i'_NAME'
            
        found=0
        
        # if there is no MAC we couldn't wakeup the host            
        if [ -n "$HOST_X_MAC" ]
        then
            find_eth
            [ 0$WOL_LIST_N -eq 0 ] || for j in `seq 1 $WOL_LIST_N`
            do
                eval WOL_LIST_X='$WOL_LIST_'$j''

                translate_ip_net $WOL_LIST_X

                if echo $WOL_LIST_X | egrep '(ip_net|IP_NET)_([1-9]|[1-9][0-9])' > /dev/null
                then
                    eval WOL_LIST_X=`netcalc network $res`
                else
                    WOL_LIST_X=$res
                fi

                if [ "$WOL_LIST_X" = "$HOST_X_NET" ] 
                then
                    if ( [ "$WOL_LIST" = "black" ] )
                    then
                        found=1
                    else
                        addhost
                    fi
                    break
                fi

                if ( [ "$WOL_LIST_X" = "$HOST_X_IP" ] )
                then
                    if ( [ "$WOL_LIST" = "black" ] )
                    then
                        found=1
                    else #if ( [ "$WOL_LIST" = "white" ] ) 
                       addhost
                    fi
                    break
                fi
            done

            if ( [ 0 -eq $found ] && [ "$WOL_LIST" = "black" ])
            then
                addhost
            fi
        fi
    done
}


if [ "$OPT_WOL" = "yes" ]
then
begin_script WOL "setting up WakeOnLan (etherwake)"

    if [ "$OPT_HTTPD" = "yes" ]
    then
        httpd-menu.sh add -p 900 'control_wol.cgi' 'WakeOnLAN' '$_MT_ctrl' 'wol'
    fi

    # only add host to wol 
    # - 0 to x clients are blacklisted, 0 means all hosts will be added to hosts.mac (this is default)
    # - 1 to x clients are whitelisted, 0 means no  hosts will be added to hosts.mac
    if (( [ $WOL_LIST_N -ge 0 ] && [ "$WOL_LIST" = "black" ] ) || ( [ $WOL_LIST_N -gt 0 ] && [ "$WOL_LIST" = "white" ] ))
    then
        mkdir /var/run/wol
        build_host_list
    fi

# --- experimental code piece start ---
    if [ "$WOL_BOOT" = yes ]
    then
        [ 0$WOL_BOOT_N -eq 0 ] || for j in `seq 1 $WOL_BOOT_N`
        do
            eval WOL_HOST_X='$WOL_BOOT_'$j''
            translate_ip_net $WOL_HOST_X
            [ 0$HOST_N -eq 0 ] || for i in `seq 1 $HOST_N`
            do
                eval HOST_X_IP='$HOST_'$i'_IP4'
                if [ "$res" = "$HOST_X_IP" ]
                then
                    eval HOST_X_MAC='$HOST_'$i'_MAC'
                    # if there is no MAC we couldn't wakeup the host            
                    if [ -n "$HOST_X_MAC" ]
                    then
                        find_eth
                        ether-wake -i $HOST_X_DEV $HOST_X_MAC
                        log_info "Send wol-paket to client $WOL_HOST_X \($HOST_X_MAC\) via $HOST_X_DEV."
                    else
                        log_error "Cant send a wol-paket to host $WOL_HOST_X, because no mac is defined for the host"
                    fi
                    break
                fi
            done
        done
    fi
# --- experimental code piece end ---

end_script
fi