mirror of
git://projects.qi-hardware.com/openwrt-xburst.git
synced 2024-11-05 17:30:38 +02:00
2af90479fb
git-svn-id: svn://svn.openwrt.org/openwrt/trunk/openwrt@2531 3c298f89-4303-0410-b956-a3cf2f4a3e73
40 lines
726 B
Bash
Executable File
40 lines
726 B
Bash
Executable File
#!/bin/sh
|
|
. /etc/nvram.sh
|
|
|
|
alias debug=${DEBUG:-:}
|
|
|
|
# valid interface?
|
|
if_valid () (
|
|
ifconfig "$1" >&- 2>&- ||
|
|
[ "${1%%[0-9]}" = "br" ] ||
|
|
{ debug "# missing interface '$1' ignored"; false; }
|
|
)
|
|
|
|
hotplug_dev() {
|
|
env -i ACTION=$1 INTERFACE=$2 /sbin/hotplug net
|
|
}
|
|
|
|
bitcount () {
|
|
local c=$1
|
|
echo $((
|
|
c=((c>> 1)&0x55555555)+(c&0x55555555),
|
|
c=((c>> 2)&0x33333333)+(c&0x33333333),
|
|
c=((c>> 4)&0x0f0f0f0f)+(c&0x0f0f0f0f),
|
|
c=((c>> 8)&0x00ff00ff)+(c&0x00ff00ff),
|
|
c=((c>>16)&0x0000ffff)+(c&0x0000ffff)
|
|
))
|
|
}
|
|
|
|
valid_netmask () {
|
|
return $((-($1)&~$1))
|
|
}
|
|
|
|
ip2int () (
|
|
set $(echo $1 | tr '\.' ' ')
|
|
echo $(($1<<24|$2<<16|$3<<8|$4))
|
|
)
|
|
|
|
int2ip () {
|
|
echo $(($1>>24&255)).$(($1>>16&255)).$(($1>>8&255)).$(($1&255))
|
|
}
|