mwan3: Ping IPv6 hosts using address not interface

Pinging IPv6 hosts using an interface as a source specifier seems
troublesome.  See https://bugs.openwrt.org/index.php?do=details&task_id=2897
for more detail.

Use the desired source interface's IP address instead.

Signed-off-by: Brian J. Murrell <brian@interlinx.bc.ca>
This commit is contained in:
Brian J. Murrell 2020-03-13 09:58:10 -04:00 committed by Florian Eckert
parent 9778e2f66f
commit 6721587e8b
2 changed files with 9 additions and 3 deletions

View File

@ -8,7 +8,7 @@
include $(TOPDIR)/rules.mk
PKG_NAME:=mwan3
PKG_VERSION:=2.8.2
PKG_VERSION:=2.8.3
PKG_RELEASE:=2
PKG_MAINTAINER:=Florian Eckert <fe@dev.tdt.de>
PKG_LICENSE:=GPL-2.0

View File

@ -132,11 +132,17 @@ main() {
if [ $host_up_count -lt $reliability ]; then
case "$track_method" in
ping)
# pinging IPv6 hosts with an interface is troublesome
# https://bugs.openwrt.org/index.php?do=details&task_id=2897
# so get the IP address of the interface and use that instead
if echo $track_ip | grep -q ':'; then
ADDR=$(ip -6 addr ls dev "$DEVICE" | sed -ne 's/ *inet6 \([^ \/]*\).* scope global.*/\1/p')
fi
if [ $check_quality -eq 0 ]; then
ping -I $DEVICE -c $count -W $timeout -s $size -t $max_ttl -q $track_ip &> /dev/null
ping -I ${ADDR:-$DEVICE} -c $count -W $timeout -s $size -t $max_ttl -q $track_ip &> /dev/null
result=$?
else
ping_result="$(ping -I $DEVICE -c $count -W $timeout -s $size -t $max_ttl -q $track_ip | tail -2)"
ping_result="$(ping -I ${ADDR:-$DEVICE} -c $count -W $timeout -s $size -t $max_ttl -q $track_ip | tail -2)"
loss="$(echo "$ping_result" | grep "packet loss" | cut -d "," -f3 | awk '{print $1}' | sed -e 's/%//')"
if [ "$loss" -eq 100 ]; then
latency=999999