Server : Apache/2.4.6 (CentOS) OpenSSL/1.0.2k-fips PHP/7.4.20 System : Linux st2.domain.com 3.10.0-1127.10.1.el7.x86_64 #1 SMP Wed Jun 3 14:28:03 UTC 2020 x86_64 User : apache ( 48) PHP Version : 7.4.20 Disable Function : NONE Directory : /proc/self/root/usr/local/FlashphonerWebCallServer/tools/ |
#!/bin/bash
trap shutdown_dump TERM SIGTERM SIGINT
RF=$1 #path to dir with dumps
INTERVAL=$2 # in seconds
MAX_SIZE=$3 #in megabytes
MODE=$4 #can be SIGNALLING, MEDIA, SIGNALLING_MEDIA
FLASHPHONER_CONF_FILE="/usr/local/FlashphonerWebCallServer/conf/flashphoner.properties"
function check_deps() {
#check tcpdump availability
TCPDUMP=`which tcpdump 2>/dev/null`
if [ -z $TCPDUMP ]; then
echo "In order to run this script you need to install tcpdump on your system."
echo "Please, try to run:"
echo "yum install tcpdump"
echo "Exiting"
exit -1
fi
}
function is_running() {
OUR_PID=$$
IS_RUNNING=`pidof -x "dump_sessions.sh" -o %PPID -o $OUR_PID | grep [0-9]`
if [ -n "$IS_RUNNING" ]; then
echo "Script already running with PID $IS_RUNNING, please check it with:"
echo "ps aux | grep dump_sessions.sh"
echo "Exiting"
exit -1
fi
}
function check_config() {
#check RF
if [ -n $RF ]; then
if [ ! -f $RF ]; then
yes_no
fi
else
#default RF
default_rf
fi
#check INTERVAL
if [ -z $INTERVAL ]; then
#set default interval to 10 minutes
INTERVAL="600"
fi
#check MAX_SIZE
if [ -z $MAX_SIZE ]; then
#set max size to 256Mb
MAX_SIZE="256"
fi
#check MODE
if [ -z $MODE ]; then
#set mode to SIGNALLING_MEDIA
MODE="SIGNALLING_MEDIA"
fi
echo "Config: RF=$RF, INTERVAL=$INTERVAL, MAX_SIZE=$MAX_SIZE, MODE=$MODE"
}
function yes_no(){
echo "Directory is not exist. Do you want to create it? (y/n)"
read in_y_n
if [ "$in_y_n" == "y" -o "$in_y_n" == "n" ]; then
if [ "$in_y_n" == "y" ]; then
mkdir -p $RF
else
#default RF
default_rf
fi
else
yes_no
fi
}
function default_rf() {
RF="/usr/local/FlashphonerWebCallServer/logs/dumps"
echo "Using default dump folder $RF"
if [ ! -f $RF ]; then
mkdir -p $RF
fi
}
function get_signalling_and_media_ports() {
PORT_FROM=`grep '^port_from' $FLASHPHONER_CONF_FILE | grep -o '[0-9]*'`
PORT_TO=`grep '^port_to' $FLASHPHONER_CONF_FILE | grep -o '[0-9]*'`
MEDIA_PORT_FROM=`grep '^media_port_from' $FLASHPHONER_CONF_FILE | grep -o '[0-9]*'`
MEDIA_PORT_TO=`grep '^media_port_to' $FLASHPHONER_CONF_FILE | grep -o '[0-9]*'`
RTMFP_PORT=`grep '^rtmfp.port' $FLASHPHONER_CONF_FILE | grep -o '[0-9]*'`
echo "Ports config: PORT_FROM=$PORT_FROM, PORT_TO=$PORT_TO, MEDIA_PORT_FROM=$MEDIA_PORT_FROM, MEDIA_PORT_TO=$MEDIA_PORT_TO"
echo "RTMFP_PORT=$RTMFP_PORT"
}
function tcpdump_args() {
if [ $MODE="SIGNALLING_MEDIA" ]; then
TCPDUMP_ARGS="and portrange $PORT_FROM-$PORT_TO and portrange $MEDIA_PORT_FROM-$MEDIA_PORT_TO and port $RTMFP_PORT"
elif [ $MODE="MEDIA" ]; then
TCPDUMP_ARGS="and portrange $MEDIA_PORT_FROM-$MEDIA_PORT_TO"
else
#default SIGNALLING
TCPDUMP_ARGS="and portrange $PORT_FROM-$PORT_TO and port $RTMFP_PORT"
fi
}
function actual_size {
ACTUAL_SIZE=`du -sb $RF | awk '/^[0-9]*.*$/{print $1}'`
let "SIZE_IN_MB = $ACTUAL_SIZE / 1024 / 1024"
echo "SIZE of $RF $SIZE_IN_MB MB"
}
function dump_size {
actual_size
if [[ $ACTUAL_SIZE -ge $MAX_SIZE_BYTES ]]; then
#we have reached maximum size of our dump directory, need to delete oldest dump file
echo "remove oldest dumps due to space limitation"
while [[ $ACTUAL_SIZE -ge $MAX_SIZE_BYTES ]]; do
#OLDEST_DUMP will contain oldest file from RF directory that starts with "session"
OLDEST_DUMP=`ls -tr $RF | grep session | head -1`
echo "Removing $OLDEST_DUMP from system"
rm -f $RF/$OLDEST_DUMP
actual_size
done
fi
}
function shutdown_dump {
echo ""
echo "kill tcpdump and exit"
kill $TCPDUMP_PID
sleep 2
exit 0
}
function main {
while true
do
get_signalling_and_media_ports
tcpdump_args
DATE=`date +%Y-%m-%d-%H_%M_%S_%N`
tcpdump udp $TCPDUMP_ARGS -i any -n -s 0 -vvv -w $RF/session-$DATE.pcap > /dev/null 2>&1 &
TCPDUMP_PID=`echo $!`
sleep $INTERVAL
kill $TCPDUMP_PID
sleep 2
dump_size
done
}
is_running
check_deps
check_config
let "MAX_SIZE_BYTES = $MAX_SIZE * 1024 * 1024"
echo "MAX size in bytes $MAX_SIZE_BYTES"
main