You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
269 lines
7.1 KiB
269 lines
7.1 KiB
#!/bin/sh
|
|
#
|
|
# Copyright (C) 2010 segal.di.ubi.pt
|
|
# Copyright (C) 2020 nbembedded.com
|
|
#
|
|
# This is free software, licensed under the GNU General Public License v2.
|
|
#
|
|
|
|
get_ping_size() {
|
|
ps=$1
|
|
case "$ps" in
|
|
small)
|
|
ps="1"
|
|
;;
|
|
windows)
|
|
ps="32"
|
|
;;
|
|
standard)
|
|
ps="56"
|
|
;;
|
|
big)
|
|
ps="248"
|
|
;;
|
|
huge)
|
|
ps="1492"
|
|
;;
|
|
jumbo)
|
|
ps="9000"
|
|
;;
|
|
*)
|
|
echo "Error: invalid ping_size. ping_size should be either: small, windows, standard, big, huge or jumbo" 1>&2
|
|
echo "Corresponding ping packet sizes (bytes): small=1, windows=32, standard=56, big=248, huge=1492, jumbo=9000" 1>&2
|
|
;;
|
|
esac
|
|
echo $ps
|
|
}
|
|
|
|
get_ping_family_flag() {
|
|
family=$1
|
|
case "$family" in
|
|
any)
|
|
family=""
|
|
;;
|
|
ipv4)
|
|
family="-4"
|
|
;;
|
|
ipv6)
|
|
family="-6"
|
|
;;
|
|
*)
|
|
echo "Error: invalid address_family \"$family\". address_family should be one of: any, ipv4, ipv6" 1>&2
|
|
;;
|
|
esac
|
|
echo $family
|
|
}
|
|
|
|
reboot_now() {
|
|
reboot &
|
|
|
|
[ "$1" -ge 1 ] && {
|
|
sleep "$1"
|
|
echo 1 > /proc/sys/kernel/sysrq
|
|
echo b > /proc/sysrq-trigger # Will immediately reboot the system without syncing or unmounting your disks.
|
|
}
|
|
}
|
|
|
|
watchcat_periodic() {
|
|
failure_period="$1"
|
|
force_reboot_delay="$2"
|
|
|
|
sleep "$failure_period" && reboot_now "$force_reboot_delay"
|
|
}
|
|
|
|
watchcat_restart_modemmanager_iface() {
|
|
[ "$2" -gt 0 ] && {
|
|
logger -p daemon.info -t "watchcat[$$]" "Resetting current-bands to 'any' on modem: \"$1\" now."
|
|
/usr/bin/mmcli -m any --set-current-bands=any
|
|
}
|
|
logger -p daemon.info -t "watchcat[$$]" "Reconnecting modem: \"$1\" now."
|
|
/etc/init.d/modemmanager restart
|
|
ifup "$1"
|
|
}
|
|
|
|
watchcat_restart_network_iface() {
|
|
logger -p daemon.info -t "watchcat[$$]" "Restarting network interface: \"$1\"."
|
|
ip link set "$1" down
|
|
ip link set "$1" up
|
|
}
|
|
|
|
watchcat_run_script() {
|
|
logger -p daemon.info -t "watchcat[$$]" "Running script \"$1\" for network interface: \"$2\"."
|
|
"$1" "$2"
|
|
}
|
|
|
|
watchcat_restart_all_network() {
|
|
logger -p daemon.info -t "watchcat[$$]" "Restarting networking now by running: /etc/init.d/network restart"
|
|
/etc/init.d/network restart
|
|
}
|
|
|
|
watchcat_monitor_network() {
|
|
failure_period="$1"
|
|
ping_hosts="$2"
|
|
ping_frequency_interval="$3"
|
|
ping_size="$4"
|
|
iface="$5"
|
|
mm_iface_name="$6"
|
|
mm_iface_unlock_bands="$7"
|
|
address_family="$8"
|
|
script="$9"
|
|
|
|
time_now="$(cat /proc/uptime)"
|
|
time_now="${time_now%%.*}"
|
|
|
|
[ "$time_now" -lt "$failure_period" ] && sleep "$((failure_period - time_now))"
|
|
|
|
time_now="$(cat /proc/uptime)"
|
|
time_now="${time_now%%.*}"
|
|
time_lastcheck="$time_now"
|
|
time_lastcheck_withinternet="$time_now"
|
|
|
|
ping_size="$(get_ping_size "$ping_size")"
|
|
|
|
ping_family="$(get_ping_family_flag "$address_family")"
|
|
|
|
while true; do
|
|
# account for the time ping took to return. With a ping time of 5s, ping might take more than that, so it is important to avoid even more delay.
|
|
time_now="$(cat /proc/uptime)"
|
|
time_now="${time_now%%.*}"
|
|
time_diff="$((time_now - time_lastcheck))"
|
|
|
|
[ "$time_diff" -lt "$ping_frequency_interval" ] && sleep "$((ping_frequency_interval - time_diff))"
|
|
|
|
time_now="$(cat /proc/uptime)"
|
|
time_now="${time_now%%.*}"
|
|
time_lastcheck="$time_now"
|
|
|
|
for host in $ping_hosts; do
|
|
if [ "$iface" != "" ]; then
|
|
ping_result="$(
|
|
ping "$ping_family" -I "$iface" -s "$ping_size" -c 1 "$host" &> /dev/null
|
|
echo $?
|
|
)"
|
|
else
|
|
ping_result="$(
|
|
ping "$ping_family" -s "$ping_size" -c 1 "$host" &> /dev/null
|
|
echo $?
|
|
)"
|
|
fi
|
|
|
|
if [ "$ping_result" -eq 0 ]; then
|
|
time_lastcheck_withinternet="$time_now"
|
|
else
|
|
if [ "$script" != "" ]; then
|
|
logger -p daemon.info -t "watchcat[$$]" "Could not reach $host via \"$iface\" for \"$((time_now - time_lastcheck_withinternet))\" seconds. Running script after reaching \"$failure_period\" seconds"
|
|
elif [ "$iface" != "" ]; then
|
|
logger -p daemon.info -t "watchcat[$$]" "Could not reach $host via \"$iface\" for \"$((time_now - time_lastcheck_withinternet))\" seconds. Restarting \"$iface\" after reaching \"$failure_period\" seconds"
|
|
else
|
|
logger -p daemon.info -t "watchcat[$$]" "Could not reach $host for \"$((time_now - time_lastcheck_withinternet))\" seconds. Restarting networking after reaching \"$failure_period\" seconds"
|
|
fi
|
|
fi
|
|
done
|
|
|
|
[ "$((time_now - time_lastcheck_withinternet))" -ge "$failure_period" ] && {
|
|
if [ "$script" != "" ]; then
|
|
watchcat_run_script "$script" "$iface"
|
|
else
|
|
if [ "$mm_iface_name" != "" ]; then
|
|
watchcat_restart_modemmanager_iface "$mm_iface_name" "$mm_iface_unlock_bands"
|
|
fi
|
|
if [ "$iface" != "" ]; then
|
|
watchcat_restart_network_iface "$iface"
|
|
else
|
|
watchcat_restart_all_network
|
|
fi
|
|
fi
|
|
/etc/init.d/watchcat start
|
|
# Restart timer cycle.
|
|
time_lastcheck_withinternet="$time_now"
|
|
}
|
|
|
|
done
|
|
}
|
|
|
|
watchcat_ping() {
|
|
failure_period="$1"
|
|
force_reboot_delay="$2"
|
|
ping_hosts="$3"
|
|
ping_frequency_interval="$4"
|
|
ping_size="$5"
|
|
address_family="$6"
|
|
|
|
time_now="$(cat /proc/uptime)"
|
|
time_now="${time_now%%.*}"
|
|
|
|
[ "$time_now" -lt "$failure_period" ] && sleep "$((failure_period - time_now))"
|
|
|
|
time_now="$(cat /proc/uptime)"
|
|
time_now="${time_now%%.*}"
|
|
time_lastcheck="$time_now"
|
|
time_lastcheck_withinternet="$time_now"
|
|
|
|
ping_size="$(get_ping_size "$ping_size")"
|
|
|
|
ping_family="$(get_ping_family_flag "$address_family")"
|
|
|
|
while true; do
|
|
# account for the time ping took to return. With a ping time of 5s, ping might take more than that, so it is important to avoid even more delay.
|
|
time_now="$(cat /proc/uptime)"
|
|
time_now="${time_now%%.*}"
|
|
time_diff="$((time_now - time_lastcheck))"
|
|
|
|
[ "$time_diff" -lt "$ping_frequency_interval" ] && sleep "$((ping_frequency_interval - time_diff))"
|
|
|
|
time_now="$(cat /proc/uptime)"
|
|
time_now="${time_now%%.*}"
|
|
time_lastcheck="$time_now"
|
|
|
|
for host in $ping_hosts; do
|
|
if [ "$iface" != "" ]; then
|
|
ping_result="$(
|
|
ping "$ping_family" -I "$iface" -s "$ping_size" -c 1 "$host" &> /dev/null
|
|
echo $?
|
|
)"
|
|
else
|
|
ping_result="$(
|
|
ping "$ping_family" -s "$ping_size" -c 1 "$host" &> /dev/null
|
|
echo $?
|
|
)"
|
|
fi
|
|
|
|
if [ "$ping_result" -eq 0 ]; then
|
|
time_lastcheck_withinternet="$time_now"
|
|
else
|
|
logger -p daemon.info -t "watchcat[$$]" "Could not reach $host for $((time_now - time_lastcheck_withinternet)). Rebooting after reaching $failure_period"
|
|
fi
|
|
done
|
|
|
|
[ "$((time_now - time_lastcheck_withinternet))" -ge "$failure_period" ] && reboot_now "$force_reboot_delay"
|
|
done
|
|
}
|
|
|
|
mode="$1"
|
|
|
|
# Fix potential typo in mode and provide backward compatibility.
|
|
[ "$mode" = "allways" ] && mode="periodic_reboot"
|
|
[ "$mode" = "always" ] && mode="periodic_reboot"
|
|
[ "$mode" = "ping" ] && mode="ping_reboot"
|
|
|
|
case "$mode" in
|
|
periodic_reboot)
|
|
# args from init script: period forcedelay
|
|
watchcat_periodic "$2" "$3"
|
|
;;
|
|
ping_reboot)
|
|
# args from init script: period forcedelay pinghosts pingperiod pingsize addressfamily
|
|
watchcat_ping "$2" "$3" "$4" "$5" "$6" "$7"
|
|
;;
|
|
restart_iface)
|
|
# args from init script: period pinghosts pingperiod pingsize interface mmifacename unlockbands addressfamily
|
|
watchcat_monitor_network "$2" "$3" "$4" "$5" "$6" "$7" "$8" "$9" ""
|
|
;;
|
|
run_script)
|
|
# args from init script: period pinghosts pingperiod pingsize interface addressfamily script
|
|
watchcat_monitor_network "$2" "$3" "$4" "$5" "$6" "" "" "$7" "$8"
|
|
;;
|
|
*)
|
|
echo "Error: invalid mode selected: $mode"
|
|
;;
|
|
esac
|