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#!/bin/sh
# @author CC Ma
# @date 2009/03/13
# @brief
# ifconfig event handling script
#

usage() {
echo "[$0] Usage: $0 {ip_mask/down/resetinfo/autoip} interface ..."
exit 1
}

count=1
if [ $# \< $count ] ; then
usage
fi

#Prince Debug Begin
if [ -e /tmp/interface_down ] ; then
echo "bgm_interface.script down on =======ifconfig.script====="
exit 1
fi
#Prince Debug End


case "$1" in
ip_mask)
# [IF Down]
count=6
if [ $# \< $count ] ; then
usage
fi
echo "[$0] ifconfig interface ipaddr netmask maskaddr"
local netif=$2
# ifconfig $netif down
# [IF ip mask]
local ip=$3
local mask=$4
if [ $ip = '0.0.0.0' ]
then
echo "[$0] ifconfig $netif 0.0.0.0"
ifconfig $netif 0.0.0.0
/sbin/netinfc set DHCP_FLAG 0
/sbin/netinfc set IP 0.0.0.0
/sbin/netinfc set Subnet 0.0.0.0
/sbin/netinfc set router 0.0.0.0
/sbin/netinfc set DNS1 0.0.0.0
/sbin/netinfc set DNS2 0.0.0.0
exit 0
else
echo "[$0] ifconfig $netif $ip netmask $mask up"
ifconfig $netif $ip netmask $mask up
ret=$?
if [ $ret != 0 ] ; then
echo "[$0] ifconfig FAIL"
exit 1
fi
/sbin/netinfc set DEV_NAME $netif
/sbin/netinfc set DHCP_FLAG 0
/sbin/netinfc set IP `ifconfig $netif | grep 'inet ' | awk '{print $2}' | sed -e "s/addr\://"`
/sbin/netinfc set Subnet `ifconfig $netif | grep 'inet ' | awk '{print $4}' | sed -e "s/Mask\://"`
if [ "$5" = "gw" ] ; then
local gw=$6
busybox route add default gw $gw
/sbin/netinfc set router `busybox route -n | grep UG | awk '{print $2}'`
ret=$?
fi
if [ -x /3rd/xunlei/bg_down ]; then
ps | grep '\<[b]g_down\>'
rc=$?
if [ $rc != 0 ]; then
/3rd/xunlei/bg_down -no_mount 2>&1
echo "[$0] start xunlei bg download"
fi
fi
fi
;;
autoip)
# [AutoIP]
echo "[$0] $1 $2 $3 $4"
local netif=$2
local ip=$3
local mask=$4

/sbin/netinfc set DHCP_FLAG 2
arping -I $netif -D $ip -w 3
ret=$?
if [ $ret != 0 ] ; then
echo "[$0] arp collision, please set another auto ip"
exit 1
fi

local dhcp_flag=`/sbin/netinfc get DHCP_FLAG | sed 's/"/ /g' | awk '{print $2}'`
if [ $dhcp_flag != '2' ]; then
echo "[$0] autoip FAIL"
exit 1
fi

echo "[$0] ifconfig $netif $ip netmask $mask"
ifconfig $netif $ip netmask $mask
ret=$?
if [ $ret != 0 ] ; then
echo "[$0] ifconfig FAIL"
exit 1
fi
busybox route add -net 224.0.0.0 netmask 224.0.0.0 $netif

/sbin/ifconfig.script resetinfo $netif
;;

resetinfo)
count=2
if [ $# \< $count ]; then
usage
fi
echo "[$0] reset $1 information"
local netif=$2
/sbin/netinfc set DEV_NAME $netif
# only for dhcp/autoip
/sbin/netinfc set DHCP_FLAG 1
/sbin/netinfc set IP `ifconfig $netif | grep 'inet ' | awk '{print $2}' | sed -e "s/addr\://"`
/sbin/netinfc set Subnet `ifconfig $netif | grep 'inet ' | awk '{print $4}' | sed -e "s/Mask\://"`

r1="`busybox route -n | grep UG | awk '{print $2}'`"
if [ -n "$r1" ]; then
/sbin/netinfc set router $r1
else
/sbin/netinfc set router 0.0.0.0
fi

d1="`cat /etc/resolv.conf | grep -m 1 '^nameserver' | awk '{print $2}'`"
if [ -n "$d1" ]; then
/sbin/netinfc set DNS1 $d1
d2="`cat /etc/resolv.conf | grep -v $d1 | grep -m 1 '^nameserver' | awk '{print $2}'`"
if [ -n "$d2" ]; then
/sbin/netinfc set DNS2 $d2
else
/sbin/netinfc set DNS2 0.0.0.0
fi
else
/sbin/netinfc set DNS1 0.0.0.0
/sbin/netinfc set DNS2 0.0.0.0
fi
ret=$?
;;
down)
# [IF Down]
echo "[$0] ifconfig $netif down"
#Prince Debug Begin
touch /tmp/interface_down
#Prince Debug End

local netif=$2
ifconfig $netif down
/sbin/netinfc set IP 0.0.0.0
/sbin/netinfc set Subnet 0.0.0.0
/sbin/netinfc set router 0.0.0.0
ret=$?
;;

*)
usage
;;
esac

if [ $ret = 0 ] ; then
echo "[$0] OK"
exit 0
else
echo "[$0] FAIL"
exit 1
fi