#!/bin/sh
UNIT_CHECK_T=5
MYDLINK_BASE="/mydlink"
PID_BASE="/tmp/run"
restart_cnt=0
WATCHDOG_PID="$PID_BASE/mydlink-watch-dog.pid"
TMP_MYDLINK="/tmp/mydlink"
# CA_CHECK_INTERVAL = 1209600 which means 86400 * 14 = 2weeks
# 1209600/5 = 241920
CA_CHECK_INTERVAL=241920
CA_RETRY_INTERVAL=720
ca_check_counter=0
CA_CHECK_URL="http://ca-mgr.auto.mydlink.com/default/ca-bundle.crt"
CA_CHECK_FLAG="/tmp/.ca.check.flag"
CA_CRT_FILE="/mydlink/config/ca-bundle.crt"
CA_SIG_FILE="/mydlink/config/ca-bundle.sig"
SYNC_OOB_FILE="/mydlink/config/sync_oob"
ca_next_check_time=0
MDB_PATH="/mydlink/mdb"
MDB_COMMAND_PATH="LD_LIBRARY_PATH=/mydlink/lib $MDB_PATH"
SMART_ROUTER_PORT="wss://0.0.0.0:8082/SwitchCamera"
FW_PAGE_SIZE=$(grep ^KernelPageSize /proc/self/smaps | awk 'NR==1 {print $2}')
INTERFACE_FILE="$MYDLINK_BASE/interface"
mkdir -p $TMP_MYDLINK
mkdir -p $PID_BASE
# read mydlink control service ip from 'interface'
if [ -f ${MDB_PATH} ]; then
if [ -f $INTERFACE_FILE ] ; then
INTERFACE=`cat $INTERFACE_FILE`
LANIP=`ifconfig $INTERFACE | grep 'inet addr' | cut -d: -f2 | awk '{print $1}'`
fi
if [ -n "$LANIP" ] ; then
SMART_ROUTER_PORT="wss://$LANIP:53674/SwitchCamera"
fi
fi
#
log() {
#echo "[`date +"%Y-%m-%d %H:%M:%S"`] $1" >> $LOG_FILE
echo "[`date +"%Y-%m-%d %H:%M:%S"`] $1" > /dev/null 2>&1
}
# replace mdb path
if [ -f ${MDB_PATH} ]; then
mdb_path="$MDB_PATH"
mdb_cmd_path="$MDB_COMMAND_PATH"
smart_router_port=$SMART_ROUTER_PORT
else
mdb_path="mdb"
mdb_cmd_path="mdb"
fi
# Manage the watchdog PID
wd_pid="-1"
if [ -f ${WATCHDOG_PID} ]; then
wd_pid=`cat ${WATCHDOG_PID}`
fi
if [ -d "/proc/$wd_pid" ] && [ "0$wd_pid" -ne "0$$" ]; then
log "Watchdog is running, exit."
exit 255
else
echo "$$" > "${WATCHDOG_PID}"
fi
if [ ! -s /mydlink/config/device.cfg ]; then
if [ -s /mydlink/config/device.mmt ]; then
`cp /mydlink/config/device.mmt /mydlink/config/device.cfg`
else
`cp /mydlink/device.cfg /mydlink/config/device.cfg`
fi
fi
# modify the cache of kernel by checking the the dev_list
# the model which support SDcard = return 32(0x20) in ctrl value should be modified
mdb_dev_list=`LD_LIBRARY_PATH="/mydlink/lib" $mdb_path get dev_list`
DEV_LIST_DECODED=$(echo -e "$mdb_dev_list" | sed 's/+/ /g;s/%/\\\\x/g;' | sed 's/+/ /g;s/&/\n/g' |awk -F'=' '{if($1=="C") print $2}' | grep 32 -c)
mdb_dev_model=`LD_LIBRARY_PATH="/mydlink/lib" $mdb_path get dev_model`
if [ "DCS-H100" = "$mdb_dev_model" ] || [ "DCS-8330LH" = "$mdb_dev_model" ] || [ -f ${MDB_PATH} ]; then
mem_max_da_adaptor=100000
mem_max_cda=100000
mem_max_sa=100000
mem_max_strmsvr=200000
else
mem_max_da_adaptor=30000
mem_max_cda=30000
mem_max_sa=10000
mem_max_strmsvr=30000
fi
if [ "DIR-X3260" = "$mdb_dev_model" ] || [ "M32" = "$mdb_dev_model" ]; then
mem_max_da_adaptor=500000
fi
clear_pid() {
rm $PID_BASE/da_adaptor.pid
rm $PID_BASE/cda.pid
rm $PID_BASE/sa.pid
rm $PID_BASE/strmsvr.pid
restart_cnt=0
}
check_memory() {
if [ -z $1 ];then
# Don't modify the line, because of it will be replaced by watchdog.
# If need, please modify env variable (MEM_THRESHOLD).
Memory_Threshold=10000
Free_Memory=`cat /proc/meminfo | grep 'MemFree:' | sed 's/^.*MemFree://g' | sed 's/kB*$//g'`
if [ $Free_Memory -le $Memory_Threshold ]; then
sync; echo 3 > /proc/sys/vm/drop_caches
echo "!!! Notice! Clear memory cache !!!"
fi
return
fi
# check if the program exists or not
if [ ! -f "$MYDLINK_BASE/$1" ] && [ ! -z $1 ]; then
return
else
# check if process exists by pid
pid="-1"
if [ -f "${PID_BASE}/${1}.pid" ]; then
pid=`cat ${PID_BASE}/${1}.pid`
fi
if [ -f "/proc/${pid}/statm" ] && [ -n "$FW_PAGE_SIZE" ]; then
MEM_PAGES=`cat /proc/${pid}/statm | awk '{print $1}'`
allocated_memory=`expr $MEM_PAGES \* $FW_PAGE_SIZE`
if [ $allocated_memory -gt $2 ]; then
killall -9 $1
fi
fi
fi
}
check_alive() {
# check if the program exists or not
if [ ! -f "$MYDLINK_BASE/$1" ]; then
return
fi
# check if process exists by pid
pid="-1"
state=""
if [ -f "${PID_BASE}/${1}.pid" ]; then
pid=`cat ${PID_BASE}/${1}.pid`
fi
if [ -d "/proc/${pid}" ]; then
state=`cat /proc/${pid}/stat | awk '{print $3}'`
if [ "${state}" != "Z" ]; then
restart_cnt=0
return
fi
fi
restart_cnt=`expr $restart_cnt + 1`
if [ "$restart_cnt" -gt 6 ]; then
log "reboot cause device agent can't startup"
reboot
fi
log "$1 is not running! ($pid)"
# kill all remaining processes and wait a moment
killall -9 $1 2>/dev/null
sleep 1
# launch the process
# $MYDLINK_BASE/$1 $2 >> "${LOG_BASE}/${1}.log" 2>&1 &
if [ -f ${MDB_PATH} ]; then
LD_LIBRARY_PATH="/mydlink/lib" /mydlink/$1 "$2" "$3" > /dev/null 2>&1 &
else
LD_LIBRARY_PATH="/mydlink/lib" /mydlink/$1 "$2" > /dev/null 2>&1 &
fi
pid="$!"
res="$?"
# keep the pid
echo $pid > "${PID_BASE}/${1}.pid"
log " - launch $1 ($pid, $res)"
}
check_cert() {
ca_check_counter=`expr $ca_check_counter + 1`
if [ -f $CA_CHECK_FLAG ]; then
ca_next_check_time=`cat $CA_CHECK_FLAG`
else
ca_next_check_time=0
fi
if [ $ca_check_counter -lt $ca_next_check_time ]; then
return 0
fi
eval $MYDLINK_BASE/ca-refresh $CA_CHECK_URL /mydlink/config /tmp > /dev/null 2>&
res=$?
if [ $res -eq 0 ];then
mv /tmp/ca-bundle.crt $CA_CRT_FILE
mv /tmp/ca-bundle.sig $CA_SIG_FILE
clear_pid
ca_next_check_time=$CA_CHECK_INTERVAL
elif [ $res -eq 1 ];then
ca_next_check_time=$CA_CHECK_INTERVAL
else
ca_next_check_time=$CA_RETRY_INTERVAL
fi
echo -n $ca_next_check_time > $CA_CHECK_FLAG
#echo "next check time:$ca_next_check_time, now:$now, diff:$(($ca_next_check_time - $now))"
ca_check_counter=0
}
dump_while_loop() {
(
while [ 1 ]
do
echo "mydlink watchdog is running in dummy loop."
sleep $UNIT_CHECK_T
done
) &
}
stop_agent() {
# check if the program exists or not
if [ ! -f "$MYDLINK_BASE/$1" ]; then
return
fi
# check if process exists by pid
pid="-1"
if [ -f "${PID_BASE}/${1}.pid" ]; then
pid=`cat ${PID_BASE}/${1}.pid`
rm $PID_BASE/${1}.pid
fi
if [ -d "/proc/${pid}" ]; then
killall -9 $1 2>/dev/null
sleep 1
fi
# double check the program exists or not
pid=`pidof $1`
if [ -n "$pid" ]; then
killall -9 $1 2>/dev/null
sleep 1
fi
}
if [ "$1" == "restart" ]; then
stop_agent da_adaptor
stop_agent cda
stop_agent sa
stop_agent strmsvr
fi
mdb_oob_st=`LD_LIBRARY_PATH="/mydlink/lib" $mdb_path get oob_changed`
if [ "$mdb_oob_st" == "1" ] && [ -f $SYNC_OOB_FILE ]; then
dump_while_loop
exit 0
fi
(
while [ 1 ]
do
curpid=`cat ${WATCHDOG_PID}`
if [ "0$$" -ne "0$curpid" ]; then
log "Unexpected pid (self: $$ cur: $curpid), exit!"
exit 255
fi
check_cert
if [ ! -f $SYNC_OOB_FILE ]; then
if [ -f ${MDB_PATH} ]; then
check_alive da_adaptor "-s $mdb_cmd_path" "-p$smart_router_port"
else
check_alive da_adaptor "-s $mdb_cmd_path"
fi
fi
mdb_reg_st=`LD_LIBRARY_PATH="/mydlink/lib" $mdb_path get register_st`
if [ "$mdb_reg_st" == "1" ] && [ "$mdb_oob_st" != "1" ]; then
check_alive cda
check_alive sa
check_alive strmsvr
fi
# check if registered or not
if [ "$mdb_reg_st" == "1" ] && [ "$mdb_oob_st" != "1" ]; then
check_memory da_adaptor $mem_max_da_adaptor
check_memory cda $mem_max_cda
check_memory sa $mem_max_sa
check_memory strmsvr $mem_max_strmsvr
fi
if [ "1" -eq "$DEV_LIST_DECODED" ]; then
check_memory
fi
sleep $UNIT_CHECK_T
done
) &
