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mwan3: disable DNS lookups for ping checks

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By default, ping does a reverse DNS of the IP that you are pinging.
When you have a network issue (such as when a link has just gone down
and you haven't yet marked it down), this lookup can cause failures on
tests for links that are still good.

This option only works for iputils ping.
For busybox the option is not evaluated, but it is accepted without
throwing an error.

Fixes: #14968
Fixes: #14924

Signed-off-by: Florian Eckert <fe@dev.tdt.de>
Suggested-by: David Lang <david@lang.hm>
This commit is contained in:
Florian Eckert 2021-03-01 12:22:38 +01:00
parent 19ccf8a96f
commit 7cfb282432
2 changed files with 3 additions and 3 deletions
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2
net/mwan3/Makefile
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@ -8,7 +8,7 @@
include $(TOPDIR)/rules.mk
PKG_NAME:=mwan3
PKG_VERSION:=2.10.6
PKG_VERSION:=2.10.7
PKG_RELEASE:=1
PKG_MAINTAINER:=Florian Eckert <fe@dev.tdt.de>, \
Aaron Goodman <aaronjg@alumni.stanford.edu>

4
net/mwan3/files/usr/sbin/mwan3track
View file

@ -242,12 +242,12 @@ main() {
case "$track_method" in
ping)
if [ $check_quality -eq 0 ]; then
WRAP $PING -c $count -W $timeout -s $size -t $max_ttl -q $track_ip &> /dev/null &
WRAP $PING -n -c $count -W $timeout -s $size -t $max_ttl -q $track_ip &> /dev/null &
TRACK_PID=$!
wait $TRACK_PID
result=$?
else
WRAP $PING -c $count -W $timeout -s $size -t $max_ttl -q $track_ip 2>/dev/null > $TRACK_OUTPUT &
WRAP $PING -n -c $count -W $timeout -s $size -t $max_ttl -q $track_ip 2>/dev/null > $TRACK_OUTPUT &
TRACK_PID=$!
wait $TRACK_PID
ping_status=$?