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mwan3: force busybox ping

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openwrt 19.07 uses iputils 20101006-1

This ancient version of iputils has a bug where the -I option is not respected.

https://github.com/iputils/iputils/issues/55
https://github.com/iputils/iputils/issues/56
https://bugs.openwrt.org/index.php?do=details&task_id=1486

Thus, we should force using busybox ping at "/bin/ping" until the iputils
version gets an upgrade in the next major release

Signed-off-by: Aaron Goodman <aaronjg@stanford.edu>
This commit is contained in:
Aaron Goodman 2020-05-20 05:34:16 -04:00
parent aafdd0730c
commit 35a86bdc11
1 changed files with 11 additions and 3 deletions
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14
net/mwan3/files/usr/sbin/mwan3track
View file

@ -6,6 +6,7 @@
LOG="logger -t $(basename "$0")[$$] -p"
INTERFACE=""
DEVICE=""
PING="/bin/ping"
IFDOWN_EVENT=0
@ -109,7 +110,10 @@ main() {
local sleep_time=0
local turn=0
local result
local ping_protocol=4
local ping_result
local ping_result_raw
local ping_status
local loss=0
local latency=0
@ -137,15 +141,19 @@ main() {
# 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 '/\/128/d' -e 's/ *inet6 \([^ \/]*\).* scope global.*/\1/p')
ping_protocol=6
fi
if [ $check_quality -eq 0 ]; then
ping -I ${ADDR:-$DEVICE} -c $count -W $timeout -s $size -t $max_ttl -q $track_ip &> /dev/null
$PING -$ping_protocol -I ${ADDR:-$DEVICE} -c $count -W $timeout -s $size -t $max_ttl -q $track_ip &> /dev/null
result=$?
else
ping_result="$(ping -I ${ADDR:-$DEVICE} -c $count -W $timeout -s $size -t $max_ttl -q $track_ip | tail -2)"
ping_result_raw="$($PING -$ping_protocol -I ${ADDR:-$DEVICE} -c $count -W $timeout -s $size -t $max_ttl -q $track_ip 2>/dev/null)"
ping_status=$?
ping_result=$(echo "$ping_result_raw" | tail -n2)
loss="$(echo "$ping_result" | grep "packet loss" | cut -d "," -f3 | awk '{print $1}' | sed -e 's/%//')"
if [ "$loss" -eq 100 ]; then
if [ "$ping_status" -ne 0 ] || [ "$loss" -eq 100 ]; then
latency=999999
loss=100
else
latency="$(echo "$ping_result" | grep -E 'rtt|round-trip' | cut -d "=" -f2 | cut -d "/" -f2 | cut -d "." -f1)"
fi