#!/bin/sh
USBFILE=/etc/ppp/usbdevices
LIST=/etc/ppp/diallist

function ec25_find_ttyname()
{
DEVNAME=$1
FLAG=0
USB_FIND_PATH=/sys/bus/usb/devices
for dir in $(ls $USB_FIND_PATH)
do
echo $(ls $US{B}_{F}IN{D}_{P}ATH/$dir) | grep ttyUSB > /dev/null 2>&1
if [ $? -eq 0 ];then #最后运行的命令的结束代码（返回值）
USBDEVID=echo $dir|awk -F"." '{print $1}'
FLAG=1
break;
fi
done
if [ $FLAG-eq0];thenlogger"CannotfindttyUSBdevice."exit2fiUS{B}_{F}IN{D}_{P}ATH=/sys/bus/usb/devices/$USBDEVID.$DEVNAME
for filename in $(ls $USB_FIND_PATH)
do
echo $filename | grep tty > /dev/null 2>&1
if [ $?-eq0];thenecho/dev/$filename
break
fi
done
}

function me909_find_ttyname()
{
DEVNAME=$1
USB_FIND_PATH=/sys/bus/usb/drivers/option
for dir in $(ls $USB_FIND_PATH)
do
bIfP=cat $USB_FIND_PATH/$dir/bInterfaceProtocol
if [ $bIfP = 01 ] || [ $bIfP = 10 ];then
for mname in $(ls $US{B}_{F}IN{D}_{P}ATH/$dir)
do
echo $mname | grep ttyUSB > /dev/null 2>&1
if [ $? -eq 0 ];then
if [ $DEVNAME=modem];thenecho/dev/$mname
break 2
fi
fi
done
elif [ $bIfP = 02 ] || [ $bIfP = 12 ];then
for pname in $(ls $US{B}_{F}IN{D}_{P}ATH/$dir)
do
echo $pname | grep ttyUSB > /dev/null 2>&1
if [ $? -eq 0 ];then
if [ $DEVNAME=pcui];thenecho/dev/$pname
break 2
fi
fi
done
fi
done
}

lsusb > $USBFILE
chmod 644 $USBFILE
#Create The Symbol Link from TTYUSB*
if [ ! -f $LIST ];then
logger “diallist is not exist!”
return 1
fi
while read line
do
USBID=echo $line|awk -F" " '{print $6}' #截取显示行的第六列
VID=echo $USBID|awk -F":" '{print $1}'
PID=echo $USBID|awk -F":" '{print $2}'
grep $VID $LIST|grep $PID > /dev/null 2>&1
if [ $? -eq 0 ];then
if [ $VID = 2c7c ] && [ $PID = 0125 ];then
echo Quectel EC20 found.
PORT_M=ec25_find_ttyname 3
PORT_A=ec25_find_ttyname 2
PORT_G=NULL
SCRIPT1=grep $VID $LIST|grep $PID|awk -F" " '{print $6}'
SCRIPT2=grep $VID $LIST|grep $PID|awk -F" " '{print $7}'
break
elif [ $VID = 2c7c ] && [ $PID = 6026 ];then
echo Quectel EC200T found.
PORT_M=ec25_find_ttyname 4
PORT_A=ec25_find_ttyname 3
PORT_G=NULL
SCRIPT1=grep $VID $LIST|grep $PID|awk -F" " '{print $6}'
SCRIPT2=grep $VID $LIST|grep $PID|awk -F" " '{print $7}'
break
elif [ $VID = 12d1 ] && [ $PID = 15c1 ];then
echo HUAWEI ME909 found.
PORT_M=me909_find_ttyname modem
PORT_A=me909_find_ttyname pcui
PORT_G=NULL
SCRIPT1=grep $VID $LIST|grep $PID|awk -F" " '{print $6}'
SCRIPT2=grep $VID $LIST|grep $PID|awk -F" " '{print $7}'
break
else
PORT_M=grep $VID $LIST|grep $PID|awk -F" " '{print $3}'
PORT_A=grep $VID $LIST|grep $PID|awk -F" " '{print $4}'
PORT_G=grep $VID $LIST|grep $PID|awk -F" " '{print $5}'
SCRIPT1=grep $VID $LIST|grep $PID|awk -F" " '{print $6}'
SCRIPT2=grep $VID $LIST|grep $PID|awk -F" " '{print $7}'
fi
#echo $PORT_M $PORT_A $PORT_G $SCRIPT1 $SCRIPT2
break
fi
done < $USBFILEif[""="$PORT_M" ] || [ “” = “$POR{T}_A"]||[""="$PORT_G” ];then
logger “USB Dongle is not found! Use 3G/4G Board.”
rm -rf /dev/ttyUSB0_modem
rm -rf /dev/ttyUSB1_pcui
rm -rf /dev/ttyUSB2_gps
PPP_DEVICE=/dev/tty4ppp
DIALER_SCRIPT=/etc/ppp/ppp-on-dialer
else
logger “USB Dongle is found!”
ln -sf $PORT_M /dev/ttyUSB0_modem
ln -sf $POR{T}_A/dev/ttyUSB{1}_{p}cuiif["NULL"!="$PORT_G" ];then
ln -sf $PORT_G /dev/ttyUSB2_gps
fi
if [ “#777” = "$1"];thenDIALE{R}_{S}CRIPT=$SCRIPT2
else
DIALER_SCRIPT=$SCRIPT1
fi
PPP_DEVICE=/dev/ttyUSB0_modem
fi

#Parameter Initialize
if [ $# -eq 0 ];then
TELEPHONE=*99#
ACCESSPOINT=“CMNET”
else
TELEPHONE=$1
ACCESSPOINT=$2
ACCOUNT=$3 # The account name for logon (as in ‘George Burns’)
if [ $# -eq 4 ];then # $#是添加到Shell的参数个数
PASSWORD=$4 # The password for this account (and ‘Gracie Allen’)
else
read -s PASSWORD # read -s 选项能够使read命令中输入的数据不显示在监视器上
fi #else 语句结尾
LOCAL_IP=0.0.0.0 # Local IP address if known. Dynamic = 0.0.0.0
REMOTE_IP=0.0.0.0 # Remote IP address if desired. Normally 0.0.0.0
NETMASK=255.255.255.0 # The proper netmask if needed
fi
if [ -z $ACCOUNT ];then #-z长度为0
ACCOUNT=anonymous
fi
if [ -z $PASSWORD ];then
PASSWORD=anonymous
fi

PPP_BAUDE=115200
export TELEPHONE ACCOUNT PASSWORD ACCESSPOINT PPP_BAUDE

Initiate the connection

if [ -f /usr/sbin/pppd ] && [ -f /usr/sbin/pppctrl ] && [ -f /usr/local/lib/pppd/passwordfd.so ];then
/usr/sbin/pppctrl -d $PPP_DEVICE -s $DIALER_SCRIPT -n $ACCOUNT -p $PASSWORD
else
exec pppd $PPP_DEVICE $PPP_BAUDE nocrtscts
defaultroute connect $DIALER_SCRIPT
user $ACCOUNT password $PASSWORD name $ACCOUNT remotename dialout debug noipdefault usepeerdns nopersist
fi