-#!/bin/ash
-. /etc/nvram.sh
-
+#!/bin/sh
alias debug=${DEBUG:-:}
# valid interface?
if_valid () (
ifconfig "$1" >&- 2>&- ||
[ "${1%%[0-9]}" = "br" ] ||
- {
- [ "${1%%[0-9]}" = "vlan" ] && (
- i=${1#vlan}
- hwname=$(nvram get vlan${i}hwname)
- hwaddr=$(nvram get ${hwname}macaddr)
- [ -z "$hwaddr" ] && return 1
-
- vif=$(ifconfig -a | awk '/^eth.*'$hwaddr'/ {print $1; exit}' IGNORECASE=1)
- debug "# vlan$i => $vif"
-
- $DEBUG ifconfig $vif up
- $DEBUG vconfig add $vif $i 2>&-
- )
- } ||
{ debug "# missing interface '$1' ignored"; false; }
)
-do_ifup() {
- if_proto=$(nvram get ${2}_proto)
- if=$(nvram get ${2}_ifname)
- [ "${if%%[0-9]}" = "ppp" ] && if=$(nvram get ${if_proto}_ifname)
-
- pidfile=/var/run/${if}.pid
- [ -f $pidfile ] && $DEBUG kill $(cat $pidfile)
-
- case "$1" in
- static)
- ip=$(nvram get ${2}_ipaddr)
- netmask=$(nvram get ${2}_netmask)
- gateway=$(nvram get ${2}_gateway)
-
- $DEBUG ifconfig $if $ip ${netmask:+netmask $netmask} broadcast + up
- ${gateway:+$DEBUG route add default gw $gateway}
-
- [ -f /etc/resolv.conf ] || {
- debug "# --- creating /etc/resolv.conf ---"
- for dns in $(nvram get ${2}_dns); do
- echo "nameserver $dns" >> /etc/resolv.conf
- done
- }
-
- env -i ACTION="ifup" INTERFACE="${2}" PROTO=static /sbin/hotplug "iface" &
- ;;
- dhcp)
- DHCP_IP=$(nvram get ${2}_ipaddr)
- DHCP_NETMASK=$(nvram get ${2}_netmask)
- $DEBUG ifconfig $if $ip ${netmask:+netmask $netmask} broadcast + up
-
- DHCP_ARGS="-i $if ${DHCP_IP:+-r $DHCP_IP} -b -p $pidfile"
- DHCP_HOSTNAME=$(nvram get ${2}_hostname)
- DHCP_HOSTNAME=${DHCP_HOSTNAME%%.*}
- [ -z $DHCP_HOSTNAME ] || DHCP_ARGS="$DHCP_ARGS -H $DHCP_HOSTNAME"
- [ "$if_proto" = "pptp" ] && DHCP_ARGS="$DHCP_ARGS -n -q" || DHCP_ARGS="$DHCP_ARGS -R &"
- oldpid=$(cat $pidfile)
- ${DEBUG:-eval} "udhcpc $DHCP_ARGS"
- pidof udhcpc | grep "$oldpid" >&- 2>&- && {
- sleep 1
- kill -9 $oldpid
- }
- # hotplug events are handled by /usr/share/udhcpc/default.script
- ;;
- none|"")
- ;;
- *)
- [ -x "/sbin/ifup.$1" ] && { $DEBUG /sbin/ifup.$1 ${2}; exit; }
- echo "### ifup ${2}: ignored ${2}_proto=\"$1\" (not supported)"
- ;;
- esac
-}
-
-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))
+hotplug_dev() {
+ env -i ACTION=$1 INTERFACE=$2 /sbin/hotplug net
}