@ -1,6 +1,7 @@
#!/bin/sh
. /lib/functions.sh
. /lib/functions/network.sh
. /lib/mwan3/common.sh
INTERFACE=""
@ -9,20 +10,33 @@ PING="/bin/ping"
IFDOWN_EVENT=0
IFUP_EVENT=0
TRACK_OUTPUT=$MWAN3TRACK_STATUS_DIR/$INTERFACE/TRACK_OUTPUT
mwan3_init
stop_subprocs() {
[ -n "$SLEEP_PID" ] && kill "$SLEEP_PID" && unset SLEEP_PID
[ -n "$TRACK_PID" ] && kill "$TRACK_PID" && unset TRACK_PID
}
clean_up() {
LOG notice "Stopping mwan3track for interface \"${INTERFACE}\""
LOG notice "Stopping mwan3track for interface \"${INTERFACE}\". Status was \"${STATUS}\""
stop_subprocs
exit 0
}
if_down() {
LOG info "Detect ifdown event on interface ${INTERFACE} (${DEVICE})"
IFDOWN_EVENT=1
stop_subprocs
}
if_up() {
LOG info "Detect ifup event on interface ${INTERFACE} (${DEVICE})"
IFDOWN_EVENT=0
IFUP_EVENT=1
STARTED=1
stop_subprocs
}
validate_track_method() {
@ -63,9 +77,10 @@ validate_track_method() {
}
disconnected() {
echo "offline" > /var/run/mwan3track/$INTERFACE/STATUS
get_uptime > /var/run/mwan3track/$INTERFACE/OFFLINE
echo "0" > /var/run/mwan3track/$INTERFACE/ONLINE
STATUS='offline'
echo "offline" > $MWAN3TRACK_STATUS_DIR/$INTERFACE/STATUS
get_uptime > $MWAN3TRACK_STATUS_DIR/$INTERFACE/OFFLINE
echo "0" > $MWAN3TRACK_STATUS_DIR/$INTERFACE/ONLINE
score=0
[ "$1" = 1 ] && return
LOG notice "Interface $INTERFACE ($DEVICE) is offline"
@ -73,6 +88,7 @@ disconnected() {
}
connected() {
STATUS='online'
echo "online" > $MWAN3TRACK_STATUS_DIR/$INTERFACE/STATUS
echo "0" > $MWAN3TRACK_STATUS_DIR/$INTERFACE/OFFLINE
get_uptime > $MWAN3TRACK_STATUS_DIR/$INTERFACE/ONLINE
@ -80,12 +96,48 @@ connected() {
lost=0
turn=0
loss=0
[ "$1" = 1 ] && return
LOG notice "Interface $INTERFACE ($DEVICE) is online"
env -i ACTION="connected" INTERFACE="$INTERFACE" DEVICE="$DEVICE" /sbin/hotplug-call iface
env -i FIRSTCONNECT=$1 ACTION="connected" INTERFACE="$INTERFACE" DEVICE="$DEVICE" /sbin/hotplug-call iface
}
disabled() {
STATUS='disabled'
echo "disabled" > $MWAN3TRACK_STATUS_DIR/$INTERFACE/STATUS
STARTED=0
}
firstconnect() {
local true_iface
network_flush_cache
mwan3_get_true_iface true_iface $INTERFACE
network_get_device DEVICE $true_iface
if [ "$STATUS" != "online" ]; then
config_get STATUS $INTERFACE initial_state "online"
fi
if ! network_is_up $true_iface || [ -z "$DEVICE" ]; then
disabled
return
fi
mwan3_get_src_ip SRC_IP $true_iface
# pinging IPv6 hosts with an interface is troublesome
# https://bugs.openwrt.org/index.php?do=details&task_id=2897
# https://bugs.openwrt.org/index.php?do=details&task_id=2167
# https://forum.openwrt.org/t/ping-and-traceroute-failing-for-eth0-3-on-ipv6/44680/11
# so use the IP address of the interface
if [ "$family" = "ipv6" ]; then
SOURCE="$SRC_IP"
else
SOURCE="$DEVICE"
fi
LOG debug "firstconnect: called on $INTERFACE/$true_iface ($DEVICE). Status is $STATUS. SRC_IP is $SRC_IP"
STARTED=1
if [ "$STATUS" = "offline" ]; then
disconnected 1
else
@ -107,15 +159,13 @@ main() {
local recovery_interval down up size
local keep_failure_interval check_quality failure_latency
local recovery_latency failure_loss recovery_loss
local max_ttl httping_ssl
[ -z "$5" ] && echo "Error: should not be started manually" && exit 0
local max_ttl httping_ssl family track_ips
INTERFACE=$1
DEVICE=$2
STATUS=$3
SRC_IP=$4
mkdir -p /var/run/mwan3track/$INTERFACE
STATUS=""
STARTED=0
mkdir -p $MWAN3TRACK_STATUS_DIR/$INTERFACE
trap clean_up TERM
trap if_down USR1
trap if_up USR2
@ -148,20 +198,23 @@ main() {
config_get recovery_latency $INTERFACE recovery_latency 500
config_get failure_loss $INTERFACE failure_loss 40
config_get recovery_loss $INTERFACE recovery_loss 10
local sleep_time result ping_status loss latency
mwan3_list_track_ips()
{
track_ips="$track_ips $1"
}
config_list_foreach "$1" track_ip mwan3_list_track_ips
local score=$((down+up))
local track_ips=$(echo $* | cut -d ' ' -f 5-99)
local host_up_count=0
local lost=0
local turn=0
local ping_protocol=4
local sleep_time result ping_result ping_result_raw ping_status loss latency
firstconnect
while true; do
[ $STARTED -eq 0 ] && { sleep $MAX_SLEEP & SLEEP_PID=$!; wait; }
unset SLEEP_PID
sleep_time=$interval
for track_ip in $track_ips; do
if [ $host_up_count -lt $reliability ]; then
case "$track_method" in
@ -169,50 +222,47 @@ main() {
# 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 [ -z ${track_ip##*:*} ]; then
ping_protocol=6
else
unset SRC_IP
fi
if [ $check_quality -eq 0 ]; then
$PING -$ping_protocol -I ${SRC_IP:-$DEVICE} -c $count -W $timeout -s $size -t $max_ttl -q $track_ip &> /dev/null
$PING -${family#ipv} -I ${SOURCE} -c $count -W $timeout -s $size -t $max_ttl -q $track_ip &> /dev/null &
TRACK_PID=$!
wait $TRACK_PID
result=$?
else
ping_result_raw="$($PING -$ping_protocol -I ${SRC_IP:-$DEVICE} -c $count -W $timeout -s $size -t $max_ttl -q $track_ip 2>/dev/null)"
$PING -${family#ipv} -I ${SOURCE} -c $count -W $timeout -s $size -t $max_ttl -q $track_ip 2>/dev/null > $TRACK_OUTPUT &
TRACK_PID=$!
wait $TRACK_PID
ping_status=$?
ping_result=$(echo "$ping_result_raw" | tail -n2)
loss="$(echo "$ping_result" | grep "packet loss" | cut -d "," -f3 | awk '{print $1}' | sed -e 's/%//')"
loss=$(grep $TRACK_OUTPUT "packet loss" | cut -d "," -f3 | awk '{print $1}' | sed -e 's/%//')
if [ "$ping_status" -ne 0 ] || [ "$loss" -eq 100 ]; then
latency=999999
loss=100
else
latency="$(echo "$ping_result" | grep -E 'rtt|round-trip' | cut -d "=" -f2 | cut -d "/" -f2 | cut -d "." -f1)"
latency="$(grep $TRACK_OUTPUT -E 'rtt|round-trip' | cut -d "=" -f2 | cut -d "/" -f2 | cut -d "." -f1)"
fi
fi
;;
arping)
arping -I $DEVICE -c $count -w $timeout -q $track_ip &> /dev/null
arping -I $DEVICE -c $count -w $timeout -q $track_ip &> /dev/null &
TRACK_PID=$!
wait $TRACK_PID
result=$?
;;
httping)
if [ "$httping_ssl" -eq 1 ]; then
httping -y $SRC_IP -c $count -t $timeout -q "https://$track_ip" &> /dev/null
httping -y $SRC_IP -c $count -t $timeout -q "https://$track_ip" &> /dev/null &
else
httping -y $SRC_IP -c $count -t $timeout -q "http://$track_ip" &> /dev/null
httping -y $SRC_IP -c $count -t $timeout -q "http://$track_ip" &> /dev/null &
fi
TRACK_PID=$!
wait $TRACK_PID
result=$?
;;
nping-tcp)
result=$(nping -e $DEVICE -c $count $track_ip --tcp | grep Lost | awk '{print $12}')
;;
nping-udp)
result=$(nping -e $DEVICE -c $count $track_ip --udp | grep Lost | awk '{print $12}')
;;
nping-icmp)
result=$(nping -e $DEVICE -c $count $track_ip --icmp | grep Lost | awk '{print $12}')
;;
nping-arp)
result=$(nping -e $DEVICE -c $count $track_ip --arp | grep Lost | awk '{print $12}')
nping-*)
nping -c $count $track_ip --${FAMILY#nping-} > $TRACK_OUTPUT &
TRACK_PID=$!
wait $TRACK_PID
result=$(grep $TRACK_OUTPUT Lost | awk '{print $12}')
;;
esac
if [ $check_quality -eq 0 ]; then
@ -247,11 +297,11 @@ main() {
LOG info "Check (${track_method}: latency=${latency}ms loss=${loss}%) success for target \"$track_ip\" on interface $INTERFACE ($DEVICE). Current score: $score"
fi
else
echo "skipped" > /var/run/mwan3track /$INTERFACE/TRACK_${track_ip}
echo "skipped" > $MWAN3TRACK_STATUS_DIR /$INTERFACE/TRACK_${track_ip}
fi
fi
else
echo "skipped" > /var/run/mwan3track /$INTERFACE/TRACK_${track_ip}
echo "skipped" > $MWAN3TRACK_STATUS_DIR /$INTERFACE/TRACK_${track_ip}
fi
done
@ -287,7 +337,7 @@ main() {
fi
if [ $score -eq $up ]; then
connected $INTERFACE $DEVICE
connected
fi
fi
@ -304,7 +354,8 @@ main() {
if [ "${IFDOWN_EVENT}" -eq 1 ]; then
LOG debug "Register ifdown event on interface ${INTERFACE} (${DEVICE})"
disconnected 1
disabled
disconnected
IFDOWN_EVENT=0
fi
if [ "${IFUP_EVENT}" -eq 1 ]; then
Aaron Goodman
4 years ago