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openwrt-xburst/package/base-files/files/sbin/ifdown
jow 4e88a660b0 [package] base-files: attempt bring up related wifi devices when calling ifup
If a user invoked /sbin/ifup to bring up an interface, the setup used to fail
in case of wireless networks tied to a non-bridged interface definition.
Likewise, the bringup of "lan" in the default configuration will reinitialize
the bridge but do not re-join the wireless network to it, requiring an extra
call to /sbin/wifi (which might not be possible anymore due to a severed link
if connected wirelessly).

The changeset modifies the "ifup" command to search for related wireless
devices and call "wifi up" on them if applicable. This way the commands for
wireless and non-wireless interfaces are unified from a cli point of view.

The "ifup -a" case has not been changed to keep the logic of the 
/etc/init.d/network boot sequence. This might be changed later.

Solves #9763.


git-svn-id: svn://svn.openwrt.org/openwrt/trunk@27720 3c298f89-4303-0410-b956-a3cf2f4a3e73
2011-07-22 00:21:20 +00:00

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#!/bin/sh
# Copyright (C) 2006-2011 OpenWrt.org
. /etc/functions.sh
[ $# = 0 ] && { echo " $0 <group>"; exit; }
case "$1" in
"-a")
[ -e "/tmp/resolv.conf.auto" ] && rm /tmp/resolv.conf.auto
config_cb() {
[ interface != "$1" -o -z "$2" ] || eval "$0 -w $2"
}
config_load network
exit 0
;;
"-w") shift ;;
esac
include /lib/network
scan_interfaces
cfg=$1
debug "### ifdown $cfg ###"
config_get proto "$cfg" proto
[ -z "$proto" ] && { echo "interface not found."; exit; }
config_get iface "$cfg" device
[ "static" = "$proto" -o "none" = "$proto" ] && {
env -i ACTION="ifdown" INTERFACE="$cfg" DEVICE="$iface" PROTO="$proto" /sbin/hotplug-call "iface"
}
# call interface stop handler
( type "stop_interface_$proto" ) >/dev/null 2>/dev/null && eval "stop_interface_$proto '$cfg'"
config_get ifname "$cfg" ifname
config_get device "$cfg" device
[ ."$device" != ."$ifname" ] || device=
for dev in $ifname $device; do
ifconfig "$dev" 0.0.0.0 down >/dev/null 2>/dev/null
done
config_get iftype "$cfg" type
[ "bridge" = "$iftype" ] && brctl delbr "$ifname" >/dev/null 2>/dev/null
# remove the interface's dns entries
remove_dns "$cfg"
# remove the interface's network state
uci_revert_state network "$1"
# revert aliases state as well
config_get aliases "$1" aliases
for config in $aliases; do
uci_revert_state network "$config"
done