Revert package feed back

[librecmc/package-feed.git] / net / mwan3 / files / usr / sbin / mwan3track

diff --git a/net/mwan3/files/usr/sbin/mwan3track b/net/mwan3/files/usr/sbin/mwan3track
index 326d8ab52c79eb8d349ec14dc40bdfba118ebeff..8afe9012939b91cd13ba0b6efb9508b37e1fd0eb 100755 (executable)
--- a/net/mwan3/files/usr/sbin/mwan3track
+++ b/net/mwan3/files/usr/sbin/mwan3track
@@ -1,66 +1,129 @@
 #!/bin/sh
 
-[ -z "$9" ] && echo "Error: should not be started manually" && exit 0
+. /lib/functions.sh
 
-if [ -e /var/run/mwan3track-$1.pid ] ; then
-       kill $(cat /var/run/mwan3track-$1.pid) &> /dev/null
-       rm /var/run/mwan3track-$1.pid &> /dev/null
-fi
+LOG="logger -t $(basename "$0")[$$] -p"
+INTERFACE=""
+DEVICE=""
 
-echo "$$" > /var/run/mwan3track-$1.pid
+IFDOWN_EVENT=0
 
-score=$(($7+$8))
-track_ips=$(echo $* | cut -d ' ' -f 9-99)
-host_up_count=0
-lost=0
-
-while true; do
-
-       for track_ip in $track_ips; do
-               ping -I $2 -c $4 -W $5 -q $track_ip &> /dev/null
-               if [ $? -eq 0 ]; then
-                       let host_up_count++
+clean_up() {
+       $LOG notice "Stopping mwan3track for interface \"${INTERFACE}\""
+       if [ "$(pgrep -f "mwan3track ${INTERFACE}")" = "" ]; then
+               rm -rf "/var/run/mwan3track/${INTERFACE}" &> /dev/null
+       fi
+       if [ -z "$(ls -A "/var/run/mwan3track")" ]; then
+               rm -rf "/var/run/mwan3track"
+       fi
+       exit 0
+}
+
+if_down() {
+       $LOG info "Detect ifdown event on interface ${INTERFACE} (${DEVICE})"
+       IFDOWN_EVENT=1
+}
+
+main() {
+       local reliability count timeout interval failure_interval
+       local recovery_interval down up size
+
+       [ -z "$3" ] && echo "Error: should not be started manually" && exit 0
+
+       INTERFACE=$1
+       DEVICE=$2
+       mkdir -p /var/run/mwan3track/$1
+       trap clean_up SIGINT SIGTERM
+       trap if_down SIGUSR1
+
+       config_load mwan3
+       config_get reliability $1 reliability 1
+       config_get count $1 count 1
+       config_get timeout $1 timeout 4
+       config_get interval $1 interval 10
+       config_get down $1 down 5
+       config_get up $1 up 5
+       config_get size $1 size 56
+       config_get failure_interval $1 failure_interval $interval
+       config_get recovery_interval $1 recovery_interval $interval
+
+       local score=$(($down+$up))
+       local track_ips=$(echo $* | cut -d ' ' -f 3-99)
+       local host_up_count=0
+       local lost=0
+       local sleep_time=0
+       local turn=0
+
+       echo "offline" > /var/run/mwan3track/$1/STATUS
+       while true; do
+
+               sleep_time=$interval
+
+               for track_ip in $track_ips; do
+                       ping -I $2 -c $count -W $timeout -s $size -q $track_ip &> /dev/null
+                       if [ $? -eq 0 ]; then
+                               let host_up_count++
+                               echo "up" > /var/run/mwan3track/$1/TRACK_${track_ip}
+                       else
+                               let lost++
+                               echo "down" > /var/run/mwan3track/$1/TRACK_${track_ip}
+                       fi
+               done
+
+               if [ $host_up_count -lt $reliability ]; then
+                       let score--
+
+                       if [ $score -lt $up ]; then
+                               score=0
+                       else
+                               sleep_time=$failure_interval
+                       fi
+
+                       if [ $score -eq $up ]; then
+                               echo "offline" > /var/run/mwan3track/$1/STATUS
+                               $LOG notice "Interface $1 ($2) is offline"
+                               env -i ACTION=ifdown INTERFACE=$1 DEVICE=$2 /sbin/hotplug-call iface
+                               score=0
+                       fi
                else
-                       let lost++
+                       if [ $score -lt $(($down+$up)) ] && [ $lost -gt 0 ]; then
+                               $LOG info "Lost $(($lost*$count)) ping(s) on interface $1 ($2)"
+                       fi
+
+                       let score++
+                       lost=0
+
+                       if [ $score -gt $up ]; then
+                               echo "online" > /var/run/mwan3track/$1/STATUS
+                               score=$(($down+$up))
+                       elif [ $score -le $up ]; then
+                               sleep_time=$recovery_interval
+                       fi
+
+                       if [ $score -eq $up ]; then
+                               $LOG notice "Interface $1 ($2) is online"
+                               env -i ACTION=ifup INTERFACE=$1 DEVICE=$2 /sbin/hotplug-call iface
+                               rm -rf "/var/run/mwan3track/${1}" &> /dev/null
+                               exit 0
+                       fi
                fi
-       done
 
-       if [ $host_up_count -lt $3 ]; then
-               let score--
+               let turn++
+               mkdir -p "/var/run/mwan3track/${1}"
+               echo "${lost}" > /var/run/mwan3track/$1/LOST
+               echo "${score}" > /var/run/mwan3track/$1/SCORE
+               echo "${turn}" > /var/run/mwan3track/$1/TURN
 
-               if [ $score -lt $8 ]; then score=0 ; fi
-               if [ $score -eq $8 ]; then
+               host_up_count=0
+               sleep "${sleep_time}" &
+               wait
 
-                       logger -t mwan3track -p notice "Interface $1 ($2) is offline"
-                       env -i ACTION=ifdown INTERFACE=$1 DEVICE=$2 /sbin/hotplug-call iface
+               if [ "${IFDOWN_EVENT}" -eq 1 ]; then
                        score=0
-
-               fi
-
-       else
-
-               if [ $score -lt $(($7+$8)) ] && [ $lost -gt 0 ]; then
-
-                       logger -t mwan3track -p info "Lost $(($lost*$4)) ping(s) on interface $1 ($2)"
-
+                       echo "offline" > /var/run/mwan3track/$1/STATUS
+                       IFDOWN_EVENT=0
                fi
+       done
+}
 
-               let score++
-               lost=0
-
-               if [ $score -gt $8 ]; then score=$(($7+$8)); fi
-               if [ $score -eq $8 ]; then
-
-                       logger -t mwan3track -p notice "Interface $1 ($2) is online"
-                       env -i ACTION=ifup INTERFACE=$1 DEVICE=$2 /sbin/hotplug-call iface
-                       rm /var/run/mwan3track-$1.pid
-                       exit 0
-               fi
-       fi
-
-       host_up_count=0
-       sleep $6 &
-       wait
-done
-
-exit 1
+main "$@"