[8.09] merge r17580, r17581 and r17582
[openwrt/svn-archive/archive.git] / package / base-files / files / sbin / ifdown
1 #!/bin/sh
2 # Copyright (C) 2006 OpenWrt.org
3
4 . /etc/functions.sh
5 [ $# = 0 ] && { echo " $0 <group>"; exit; }
6 [ "x$1" = "x-a" ] && {
7 [ -e "/tmp/resolv.conf.auto" ] && rm /tmp/resolv.conf.auto
8 config_cb() {
9 [ interface != "$1" -o -z "$2" ] || eval "$0 $2"
10 }
11 config_load network
12 exit
13 }
14
15 include /lib/network
16 scan_interfaces
17
18 cfg=$1
19 debug "### ifdown $cfg ###"
20
21 config_get proto "$cfg" proto
22 [ -z "$proto" ] && { echo "interface not found."; exit; }
23
24 config_get iface "$cfg" device
25 [ "static" = "$proto" -o "none" = "$proto" ] && {
26 env -i ACTION="ifdown" INTERFACE="$cfg" DEVICE="$iface" PROTO="$proto" /sbin/hotplug-call "iface"
27 }
28
29 # call interface stop handler
30 ( type "stop_interface_$proto" ) >/dev/null 2>/dev/null && eval "stop_interface_$proto '$cfg'"
31
32 # make sure all locks are removed
33 for lock in "/var/lock/dhcp-$iface" "/var/lock/ppp-$iface"; do
34 [ -f "$lock" ] && {
35 lock -u "$lock"
36 sleep 1
37 }
38 done
39
40 # kill active ppp daemon and other processes
41 config_get ifname "$cfg" ifname
42 pids="$(head -n1 -q /var/run/${ifname}.pid /var/run/ppp-${cfg}.pid 2>/dev/null)"
43 for pid in $pids; do
44 [ -d "/proc/$pid" ] && {
45 kill $pid
46 [ -d "/proc/$pid" ] && {
47 sleep 1
48 kill -9 $pid 2>/dev/null >/dev/null
49 }
50 }
51 done
52 rm -f /var/run/${ifname}.pid /var/run/ppp-${cfg}.pid
53
54 config_get ifname "$cfg" ifname
55 config_get device "$cfg" device
56
57 [ ."$device" != ."$ifname" ] || device=
58 for dev in $ifname $device; do
59 ifconfig "$dev" 0.0.0.0 down >/dev/null 2>/dev/null
60 done
61
62 config_get iftype "$cfg" type
63 [ "bridge" = "$iftype" ] && brctl delbr "$ifname" >/dev/null 2>/dev/null
64
65 # remove the interface's network state
66 uci_revert_state network "$1"
67
68 # revert aliases state as well
69 config_get aliases "$1" aliases
70 for config in $aliases; do
71 uci_revert_state network "$config"
72 done