dial.sh

#!/bin/sh
if [ ! -e /tmp/usb_modeswitch.conf ];then
cat >/tmp/usb_modeswitch.conf<<EOF
DefaultVendor=0x1a8d
DefaultProduct=0x2000
TargetVendor=0x1a8d
TargetProduct=0x2006
MessageContent="5553424312345678000000000000061e000000000000000000000000000000"
MessageContent2="5553424312345679000000000000061b000000020000000000000000000000"
ReleaseDelay=4000
NeedResponse=1
EOF
fi
if [ ! -e /tmp/pppd.options ];then
cat >/tmp/pppd.options<<EOF
defaultroute
usepeerdns
noipdefault
noauth
persist
maxfail 3
holdoff 10
ipcp-max-failure 30
lcp-echo-interval 30
lcp-echo-failure 3
crtscts
921600
connect "/usr/sbin/chat '' ATZ OK ATD*99***1# CONNECT ''"
user 'username'
password 'password'
/dev/ttyACM0
EOF
fi
if [ ! -e /tmp/redial.sh ];then
cat >/tmp/redial.sh<<EOF
#!/bin/sh
while true;do
sleep 120
if ! ping -c1 inet.host.to.ping.com >/dev/null 2>&1;then
killall pppd
/tmp/dial.sh &
fi
done
EOF
chmod 700 /tmp/redial.sh
fi
usb_modeswitch -c /tmp/usb_modeswitch.conf >/tmp/usb_modeswitch.out 2>&1
COUNT=0
while [ ! -c /dev/ttyACM1 ];do
let COUNT=$COUNT+1
[ $COUNT -ge 60 ]&&exit 1
sleep 1;done
sleep 1
COMGTPIN=0000 comgt -d /dev/ttyACM0 PIN >/tmp/comgt-pin.out 2>&1
sleep 1
pppd file /tmp/pppd.options
ps|grep '[r]edial.sh' >/dev/null||/tmp/redial.sh &