#!/bin/bash
if [ $UID != 0 ]; then
 echo Error: become root before starting $0 >&2
 exit 100
fi
XDIALOG_HIGH_DIALOG_COMPAT=1
export XDIALOG_HIGH_DIALOG_COMPAT
LANG=C
export LANG
DIALOG=dialog
[ -n "$DISPLAY" ] && [ -x /usr/bin/Xdialog ] && DIALOG="Xdialog"
function inputbox {
 # inputbox title text width [init]
 $DIALOG --stdout --title "$1" --inputbox "\n$2\n\n" 10 $3 "$4"
}
function msgbox {
 # msgbox title text width
 $DIALOG --title "$1" --msgbox "\n$2\n" $((${#2}/($3-4)+7)) $3
}
function yesno {
 # yesno title text width
 $DIALOG --title "$1" --yesno "\n$2\n" $((${#2}/($3-4)+7)) $3
 echo $?
}
TITLE="FRITZ!Card DSL Configuration"
PROVIDER="$(inputbox "$TITLE" "PPPoE provider" 50 fcdsl)"
[ $? != 0 ] && exit 1
if [ "$PROVIDER" == "" ]; then
 msgbox "$TITLE" "Error: bad provider name" 50
 exit 10
fi
USERNAME="$(inputbox "$TITLE" "PPPoE username" 50)"
[ $? != 0 ] && exit 2
if [ "$USERNAME" == "" ]; then
 msgbox "$TITLE" "Error: bad username" 50
 exit 20
fi
PASSWORD="$(inputbox "$TITLE" "PPPoE password" 50)"
[ $? != 0 ] && exit 3
if [ "$PASSWORD" == "" ]; then
 msgbox "$TITLE" "Error: bad password" 50
 exit 30
fi
START=$(yesno "$TITLE" "Start DSL on boot?" 50)
rm -rf "/etc/ppp/peers/$PROVIDER"
cat <<EOF >"/etc/ppp/peers/$PROVIDER"
debug
sync
noauth
defaultroute
lcp-echo-interval 5
lcp-echo-failure 3
lcp-max-configure 50
lcp-max-terminate 2
noccp
noipx
#
persist
#demand
connect ""
#
mru 1492
mtu 1492
ipcp-accept-local
ipcp-accept-remote
#
# Anschlusskennung T-Online-Nummer Mitbenutzerkennung
#          |           |           |
#user 000000000000\#000000000000\#0001\#@t-online.de
user "$USERNAME"
hide-password
linkname "$PROVIDER"
ipparam internet
plugin capiplugin.so
avmadsl
:
/dev/null
usepeerdns
EOF
chmod 640 "/etc/ppp/peers/$PROVIDER"
chown root.dip "/etc/ppp/peers/$PROVIDER"
for AUTH in chap pap; do
 [ -w /etc/ppp/$AUTH-secrets ] && perl -pi -e "s|^[\s]*\"$USERNAME\".*[\n]?$||" /etc/ppp/$AUTH-secrets
 cat <<EOF >>/etc/ppp/$AUTH-secrets
"$USERNAME" * "$PASSWORD"
EOF
 chmod 600 /etc/ppp/$AUTH-secrets
 chown root.root /etc/ppp/$AUTH-secrets
done
PPPD=/usr/sbin/pppd
if [ $START == 0 ]; then
 cat <<EOF >/etc/ppp/ppp_on_boot
#!/bin/sh
PPPD=$PPPD
echo
echo -n Waiting to initialize the FRITZ!Card DSL
for ((sec=1;sec<=60;sec++)) do
 adslstat 1 2>/dev/null && break
 echo -n .
done
echo
if adslstat 1 2>/dev/null; then
 \$PPPD call "$PROVIDER"
else
 echo No dialin possible. Try later again.
fi
EOF
 chmod 700 /etc/ppp/ppp_on_boot
 chown root.root /etc/ppp/ppp_on_boot
else
 rm -f /etc/ppp/ppp_on_boot
fi
if [ ! -e /etc/debian_version ]; then
 [ -f /etc/resolv.conf ] && cp /etc/resolv.conf /etc/resolv.conf.1st
 rm -f /etc/resolv.conf
 ln -s ppp/resolv.conf /etc/resolv.conf
fi
killall pppd 2>/dev/null
echo
echo -n Waiting to initialize the FRITZ!Card DSL
for ((sec=1;sec<=60;sec++)) do
 adslstat 1 2>/dev/null && break
 echo -n .
done
echo
if adslstat 1 2>/dev/null; then
 $PPPD call "$PROVIDER"
else
 echo No dialin possible. Try later again.
fi