ping-monitor: added

pull/37/head
Micheal Wall 2020-05-09 19:10:01 -05:00
parent 85ea267c89
commit 1b278496e9
1 changed files with 201 additions and 0 deletions

201
modules/ping-monitor Normal file
View File

@ -0,0 +1,201 @@
#!/bin/bash /usr/lib/turtle/turtle_module
VERSION="1.0"
DESCRIPTION="Sends ping response data to a remote host via SSHFS"
CONF=/tmp/ping-monitor.form
: ${DIALOG_OK=0}
: ${DIALOG_CANCEL=1}
: ${DIALOG_HELP=2}
: ${DIALOG_EXTRA=3}
: ${DIALOG_ITEM_HELP=4}
: ${DIALOG_ESC=255}
sp="/root/ping_monitor.output"
pf="/var/run/ping-monitor.pid"
function set_globals {
if [ -s /etc/config/ping-monitor ]
then
target=$(uci get ping-monitor.target)
else
touch /etc/config/ping-monitor
echo "ping-monitor not configured"
return 1
fi
}
function stop_ping {
pingpid=$(ps | grep -v grep | grep 'ping '"${target}" | awk '{print $1}')
kill -2 ${pingpid}
while kill -0 ${pingpid} > /dev/null 2>&1; do sleep 0.1; done
}
function start_ping {
case "$(status)" in
1)
# Already running
return 1
;;
*)
:
;;
esac
check_sshfs > /dev/null 2>&1
if [ $? -eq 0 ]; then
find /root -type f -name "ping_monitor.*" -exec mv {} /sshfs \;
fi
ping ${target} | while read pong; do echo "$(date '+%Y-%m-%d %H:%M:%S') ${pong}"; done > ${sp} &
local pid=$!
echo ${pid} > ${pf}
echo "ping-monitor started with pid: ${pid}"
return 0
}
function check_sshfs {
cat /etc/mtab | awk '{print $2}' | grep -e '^/sshfs'
return $?
}
function move {
local dt="$(date +%Y%d%d-%H%M%S)"
local dp="/root/ping_monitor.${dt}"
if [ -f ${sp} ]; then
mv ${sp} ${dp} # atomic?
fi
check_sshfs > /dev/null 2>&1
if [ $? -eq 0 ]; then
test -f ${dp} && mv ${dp} /sshfs
fi
}
function rotate {
stop_ping
move
start_ping
}
function start {
set_globals || exit 1
start_ping
case $? in
2)
exit 1
;;
1)
# It's already running. Let's sigint and rotate.
rotate
;;
*)
:
;;
esac
if [ -f /var/spool/cron/crontabs/root ]; then
grep '\*/5 \* \* \* \* /etc/turtle/modules/ping-monitor start' /var/spool/cron/crontabs/root > /dev/null || {
echo '*/5 * * * * /etc/turtle/modules/ping-monitor start' >> /var/spool/cron/crontabs/root
/etc/init.d/cron reload
}
fi
check_sshfs > /dev/null 2>&1
if [ $? -ne 0 ]; then
>&2 echo "sshfs is not mounted"
if [ "$(/etc/turtle/modules/sshfs status)" != "Running." ]; then
/etc/turtle/modules/sshfs start
fi
fi
}
function stop {
set_globals || exit 1
sed -i '/\*\/5 \* \* \* \* \/etc\/turtle\/modules\/ping-monitor start/d' /var/spool/cron/crontabs/root
/etc/init.d/cron reload
stop_ping
# Attempt to move the last log
move
}
function status {
if [ -f ${pf} ]; then
pid="$(head -n1 ${pf})"
kill -0 ${pid} > /dev/null 2>&1
if [ $? -eq 0 ]; then
if [ "ping-monitor" == "$(cat /proc/${pid}/comm)" ]; then
echo "1";
return 0
fi
fi
fi
echo "0"
}
function configure {
if [ ! -f /etc/turtle/modules/sshfs ]; then
echo "dependency module sshfs is not installed."
return 1
fi
check_sshfs > /dev/null 2>&1
if [ $? -ne 0 ]; then
echo "sshfs is not mounted."
return 1
fi
if [ -s /etc/config/ping-monitor ]
then
target=$(uci get ping-monitor.target)
else
touch /etc/config/ping-monitor
fi
dialog --ok-label "Submit" \
--help-button \
--title "ping-monitor configuration" \
--form "Send ping data to a remote host (requires sshfs module)\n\n\
Target: host to ping.\n" 16 60 1\
"Target:" 1 1 "${target}" 1 9 54 0 \
2>$CONF
return=$?
case $return in
$DIALOG_OK)
cat $CONF | {
read -r target
if [ -z "$target" ]; then
target="8.8.8.8"
fi
touch /etc/config/ping-monitor
uci set ping-monitor.target="$target"
uci commit ping-monitor
rm $CONF
clear
};;
$DIALOG_CANCEL)
rm $CONF
clear
exit;;
$DIALOG_HELP)
dialog --title "Help" \
--msgbox " \
ping-monitor will send continuous ping requests to a target host and record the responses to the \
local filesystem. Every 5 minutes, it will attempt to move the log of response data from the \
local filesystem to a remote filesystem over sshfs. Therefore, this module requires that the \
sshfs module be installed, configured, and started. \
" 20 60
configure
;;
$DIALOG_ESC)
clear;;
esac
}