#!/bin/sh
#----------------------------------------------------------------------------
# /etc/rc.d/rc120.net - loading driver for netword card
# was file /etc/rc.d/rc120.eth
#
# Creation:     29.03.2000  fm
# Last Update:  $Id$
#----------------------------------------------------------------------------

begin_script NET "loading network drivers ..."

# Loading base drivers if available (otherwise they aren't needed)

# returns all names of network link devices
get_link_names()
{
  ip -o link show | cut -d ' ' -f 2 | sed 's/\(.*\):$/\1/'
}

load_driver()
{
  drv=$1
  opts="$2"
  oldeth=$(get_link_names)

  case $drv
  in
    cs89x0)
      do_modprobe $drv $opts
      if [ $? != 0 ]
      then
        echo $SCRIPT" module cs89x0 failed, retrying with reset!" >>/bootmsg.txt
        newopts=

        for var in $opts
        do
          v=$(echo $var | sed '/io=/s/.$/1/' | sed '/io=/s/.,/1,/g')
          newopts="$newopts $v"
        done

        do_modprobe $drv $newopts

        if [ $? != 0 ]
        then
          echo $SCRIPT" module $drv failed!" >>/bootmsg.txt
        else
          echo $SCRIPT" module $drv loaded with reset" >>/bootmsg.txt
        fi
      fi
    ;;
    kaweth)
      do_modprobe $drv $opts
      log_info "waiting 8 sec for initalizion of driver kaweth"
      sleep 8
    ;;
    r8152)
      do_modprobe $drv $opts
      log_info "waiting 2 sec for initalizion of driver r8152"
      sleep 2
    ;;
    r8169)
      log_info "Loading realtek PHY driver"
      do_modprobe realtek
      sleep 1
      do_modprobe $drv $opts
    ;;
    *)
        do_modprobe $drv $opts
    ;;
  esac

  neweth=$(get_link_names)
  for i in $oldeth
  do
    neweth=$(echo "$neweth" | sed "s/^$i$//")
  done
  for i in $neweth
  do
    echo "${i}=${drv}" >> $netdrivers
  done

  # Switch off rx and tx vlan hardware tagging as this code is broken on recent kernels
  case $drv
  in
    e1000bp)
      case $kernel-major
      in
        3.2)
          if [ -x /usr/sbin/ethtool ]
          then
            for i in $neweth
            do
              /usr/sbin/ethtool -K $i txvlan off rxvlan off 2>/dev/null
            done
          fi
      ;;
      esac
    ;;
  esac

  # Move wlan Devices to wlan%d namespace
  if [ -x /sbin/iwconfig ]
  then
    #search for lowest possible wlan%d
    wlan_next=0
    for i in $(get_link_names | sed -n 's/^wlan\([0-9]\+\)/\1/p')
    do
      wlan_next=$((i + 1))
    done

    #move wlan-devices
    for i in $(iwconfig 2>/dev/null | sed -n '/^\([ea]th\|ra\)[0-9]/s/ .*$//p')
    do
      j=wlan${wlan_next}
      ip link set dev $i down
      ip link set dev $i name $j
      sed -i "s/^$i=/$j=/" $netdrivers
      wlan_next=$((wlan_next + 1))
    done

    # Close gaps
    # should be hyperfluid in this context because i dont think there is a wlan-driver which registeres a wlan and a lan-device at once
    eth_next=0
    for i in $(get_link_names | sed -n 's/^eth\([0-9]\+\)/\1/p')
    do
      if [ $i != $eth_next ]
      then
        src=eth$i
        tgt=eth${eth_next}
        ip link set dev $src down
        ip link set dev $src name $tgt
        sed -i "s/^$src=/$tgt=/" $netdrivers
      fi
      eth_next=$((eth_next + 1))
    done
  fi
}

load_driver_if_exists ()
{
  drv=$1

  local kernel_version=$(uname -r)
  if grep -q "${drv}" "/lib/modules/${kernel_version}/modules.dep"
  then
    load_driver "$@"
  fi
}

netdrivers=/var/run/netdrivers.conf
>$netdrivers

for idx in $(seq 1 $NET_DRV_N)
do
  eval drv='$NET_DRV_'$idx
  eval opt='$NET_DRV_'$idx'_OPTION'
  load_driver $drv "$opt"
done

end_script