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make network scripts more robust, prevent multiple instances of pppd and udhcpc for the same interface

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git-svn-id: svn://svn.openwrt.org/openwrt/trunk@5290 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
nbd
2006-10-24 23:59:08 +00:00
parent 58c8f8ef5a
commit 6628b238eb
4 changed files with 27 additions and 21 deletions
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35
package/base-files/default/sbin/ifdown
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@@ -12,23 +12,26 @@ debug "### ifdown $cfg ###"
config_get proto "$cfg" proto
[ -z "$proto" ] && { echo "interface not found."; exit; }
# kill active ppp daemon
pid="$(cat /var/run/ppp-${cfg}.pid 2>/dev/null)"
[ -n "$pid" -a -d "/proc/$pid" ] && {
kill $pid
sleep 1
[ -d "/proc/$pid" ] && kill -9 $pid
}
# kill any other process associated with the interface
# kill active ppp daemon and other processes
config_get ifname "$cfg" ifname
pid="$(cat /var/run/${ifname}.pid 2>/dev/null)"
[ -n "$pid" -a -d "/proc/$pid" ] && kill -9 $pid
pids="$(cat /var/run/${ifname}.pid /var/run/ppp-${cfg}.pid 2>/dev/null)"
for pid in $pids; do
[ -d "/proc/$pid" ] && {
kill $pid
sleep 1
[ -d "/proc/$pid" ] && kill -9 $pid
}
done
rm -f /var/run/${ifname}.pid /var/run/ppp-${cfg}.pid
config_get ifname "$cfg" ifname
ifconfig "$ifname" >/dev/null 2>/dev/null && {
ifconfig "$ifname" 0.0.0.0 down
config_get device "$cfg" ifname
[ ."$device" != ."$ifname" ] || device=
for dev in $ifname $device; do
ifconfig "$ifname" 0.0.0.0 down >/dev/null 2>/dev/null
done
config_get iftype "$cfg" type
[ "$iftype" = "bridge" ] && brctl delbr "$ifname" >/dev/null 2>/dev/null
config_get iftype "$cfg" type
[ "$iftype" = "bridge" ] && brctl delbr "$ifname"
}