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Add simple quota control feature in vpnsetup.sh

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This commit is contained in:
linhai 2017-01-16 13:22:57 +08:00
parent d1753c9298
commit f7a2cf4bcf
1 changed files with 55 additions and 2 deletions
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57
vpnsetup.sh
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@ -132,6 +132,7 @@ print_status "Installing packages required for setup..."
apt-get -yq install wget dnsutils openssl || exiterr2
apt-get -yq install iproute gawk grep sed net-tools || exiterr2
apt-get -yq install bc || exiterr2
print_status "Trying to auto discover IPs of this server..."
@ -342,6 +343,60 @@ net.ipv4.tcp_wmem = 10240 87380 12582912
EOF
fi
print_status "Creating quota/ip-up.local/ip-down.local..."
cat > /etc/ppp/quota <<EOF
#
# This is the quota file
# The 1st field is ther username
# The 2nd field is the quota (in MB). "*" means unlimited.
# Sample:
# username 1000
#
$VPN_USER *
EOF
conf_bk "/etc/ppp/ip-up.local"
cat > /etc/ppp/ip-up.local <<'EOF'
#!/bin/sh
VPNUSAGE_FILE=/var/log/vpnusage.log
VPNQUOTA_FILE=/etc/ppp/quota
LOG_FILE=/var/log/vpn.log
# Check quota
QUOTA=`awk '$1=="'${PEERNAME}'" {print $2}' $VPNQUOTA_FILE`
CURRENT_USAGE=`awk -F, '$2~/'${PEERNAME}'/ { sum = sum + $3 } END { printf ("%.2f", sum/1024/1024)}' $VPNUSAGE_FILE`
if [ "$QUOTA"x = "*x" ]
then
echo "[CONN] `date -d today +%F_%T` ${PEERNAME}: Current usage $CURRENT_USAGE M is within the quota unlimited. Connected" >> $LOG_FILE
exit 0
fi
if [ `expr $CURRENT_USAGE \< $QUOTA` -eq 1 ]
then
echo "[CONN] `date -d today +%F_%T` ${PEERNAME}: Current Usage $CURRENT_USAGE M is within the quota $QUOTA M. Connected" >> $LOG_FILE
else
echo "[TERM] `date -d today +%F_%T` ${PEERNAME}: Current Usage $CURRENT_USAGE M is over the quota $QUOTA M. Force terminate" >> $LOG_FILE
kill $PPPD_PID
fi
EOF
conf_bk "/etc/ppp/ip-down.local"
cat > /etc/ppp/ip-down.local <<'EOF'
#!/bin/sh
VPNUSAGE_FILE=/var/log/vpnusage.log
LOG_FILE=/var/log/vpn.log
sum_bytes=$(($BYTES_SENT+$BYTES_RCVD))
sum=$(printf "%.2f" `echo "scale=2;$sum_bytes/1024/1024"|bc`)
ave=`echo "scale=2;$sum_bytes/1024/$CONNECT_TIME"|bc`
echo "[CLOS] `date -d today +%F_%T` ${PEERNAME}: Total online $CONNECT_TIME seconds, transferred $sum MB ($ave KB/s)." >> $LOG_FILE
echo "`date -d today +%F_%T` , $PEERNAME , $sum_bytes , $CONNECT_TIME" >> $VPNUSAGE_FILE
EOF
chmod +x /etc/ppp/ip-up.local
chmod +x /etc/ppp/ip-down.local
print_status "Updating IPTables rules..."
# Check if IPTables rules need updating
@ -458,5 +513,3 @@ Setup VPN clients: https://git.io/vpnclients
EOF
exit 0