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#!/bin/sh
#***********************************************************************
#
# adsl-setup
#
# All-purpose slicing/dicing shell script to configure rp-pppoe.
#
# Copyright (C) 2000 Roaring Penguin Software Inc.
#
# $Id$
#***********************************************************************
# From AUTOCONF
prefix=@prefix@
exec_prefix=@exec_prefix@
# Paths to programs
IFCONFIG=/sbin/ifconfig
PPPD=@PPPD@
PPPOE=@sbindir@/pppoe
ECHO=@ECHO@
LOGGER="/usr/bin/logger -t `basename $0`"
CONFIG=/etc/ppp/pppoe.conf
# Protect created files
umask 077
copy() {
cp $1 $2
if [ "$?" != 0 ] ; then
$ECHO "*** Error copying $1 to $2"
$ECHO "*** Quitting."
exit 1
fi
}
$ECHO "Welcome to the Roaring Penguin ADSL client setup. First, I will run"
$ECHO "some checks on your system to make sure the PPPoE client is installed"
$ECHO "properly..."
$ECHO ""
# Must be root
if [ "`@ID@ -u`" != 0 ] ; then
$ECHO "$0: Sorry, you must be root to run this script"
exit 1
fi
# Prototype config file must exist
if [ ! -r "$CONFIG" ] ; then
$ECHO "Oh, dear, I don't see the file '$CONFIG' anywhere. Please"
$ECHO "re-install the PPPoE client."
exit 1
fi
# Must have pppd
if [ ! -x $PPPD ] ; then
$ECHO "Oops, I can't execute the program '$PPPD'. You"
$ECHO "must install the PPP software suite, version 2.3.10 or later."
exit 1
fi
. $CONFIG
if [ "$DEMAND" = "" ] ; then
DEMAND=no
fi
# pppoe must exist
if [ ! -x "$PPPOE" ] ; then
$ECHO "Oh, dear, I can't execute the program '$PPPOE'. Please"
$ECHO "re-install the rp-pppoe client."
exit 1
fi
$ECHO "Looks good! Now, please enter some information:"
while [ true ] ; do
$ECHO ""
$ECHO "USER NAME"
$ECHO ""
$ECHO -n ">>> Enter your PPPoE user name (default $USER): "
read U
if [ "$U" = "" ] ; then
U="$USER"
fi
# Under Linux, "fix" the default interface if eth1 is not available
if test `uname -s` = "Linux" ; then
$IFCONFIG $ETH > /dev/null 2>&1 || ETH=eth0
fi
$ECHO ""
$ECHO "INTERFACE"
$ECHO ""
$ECHO ">>> Enter the Ethernet interface connected to the ADSL modem"
$ECHO "For Solaris, this is likely to be something like /dev/hme0."
$ECHO "For Linux, it will be ethn, where 'n' is a number."
$ECHO -n "(default $ETH): "
read E
if [ "$E" = "" ] ; then
E="$ETH"
fi
$ECHO ""
$ECHO "Do you want the link to come up on demand, or stay up continuously?"
$ECHO "If you want it to come up on demand, enter the idle time in seconds"
$ECHO "after which the link should be dropped. If you want the link to"
$ECHO "stay up permanently, enter 'no' (two letters, lower-case.)"
$ECHO "NOTE: Demand-activated links do not interact well with dynamic IP"
$ECHO "addresses. You may have some problems with demand-activated links."
$ECHO -n ">>> Enter the demand value (default $DEMAND): "
read D
if [ "$D" = "" ] ; then
D=$DEMAND
fi
$ECHO ""
$ECHO "DNS"
$ECHO ""
$ECHO "Please enter the IP address of your ISP's primary DNS server."
$ECHO "If your ISP claims that 'the server will provide DNS addresses',"
$ECHO "enter 'server' (all lower-case) here."
$ECHO "If you just press enter, I will assume you know what you are"
$ECHO "doing and not modify your DNS setup."
$ECHO -n ">>> Enter the DNS information here: "
read DNS1
if [ "$DNS1" != "" ] ; then
if [ "$DNS1" != "server" ] ; then
$ECHO "Please enter the IP address of your ISP's secondary DNS server."
$ECHO "If you just press enter, I will assume there is only one DNS server."
$ECHO -n ">>> Enter the secondary DNS server address here: "
read DNS2
fi
fi
while [ true ] ; do
$ECHO ""
$ECHO "PASSWORD"
$ECHO ""
stty -echo
$ECHO -n ">>> Please enter your PPPoE password: "
read PWD1
$ECHO ""
$ECHO -n ">>> Please re-enter your PPPoE password: "
read PWD2
$ECHO ""
stty echo
if [ "$PWD1" = "$PWD2" ] ; then
break
fi
$ECHO -n ">>> Sorry, the passwords do not match. Try again? (y/n)"
read ANS
case "$ANS" in
N|No|NO|Non|n|no|non)
$ECHO "OK, quitting. Bye."
exit 1
esac
done
# Firewalling
$ECHO ""
$ECHO "FIREWALLING"
$ECHO ""
if test `uname -s` != "Linux" ; then
$ECHO "Sorry, firewalling is only supported under Linux. Consult"
$ECHO "your operating system manuals for details on setting up"
$ECHO "packet filters for your system."
FIREWALL=NONE
else
$ECHO "Please choose the firewall rules to use. Note that these rules are"
$ECHO "very basic. You are strongly encouraged to use a more sophisticated"
$ECHO "firewall setup; however, these will provide basic security. If you"
$ECHO "are running any servers on your machine, you must choose 'NONE' and"
$ECHO "set up firewalling yourself. Otherwise, the firewall rules will deny"
$ECHO "access to all standard servers like Web, e-mail, ftp, etc. If you"
$ECHO "are using SSH, the rules will block outgoing SSH connections which"
$ECHO "allocate a privileged source port."
$ECHO ""
while [ true ] ; do
$ECHO "The firewall choices are:"
$ECHO "0 - NONE: This script will not set any firewall rules. You are responsible"
$ECHO " for ensuring the security of your machine. You are STRONGLY"
$ECHO " recommended to use some kind of firewall rules."
$ECHO "1 - STANDALONE: Appropriate for a basic stand-alone web-surfing workstation"
$ECHO "2 - MASQUERADE: Appropriate for a machine acting as an Internet gateway"
$ECHO " for a LAN"
$ECHO -n ">>> Choose a type of firewall (0-2): "
read a
if [ "$a" = 0 -o "$a" = 1 -o "$a" = 2 ] ; then
break
fi
$ECHO "Please enter a number from 0 to 2"
done
case "$a" in
0)
FIREWALL=NONE
;;
1)
FIREWALL=STANDALONE
;;
2)
FIREWALL=MASQUERADE
;;
esac
fi
$ECHO ""
$ECHO "** Summary of what you entered **"
$ECHO ""
$ECHO "Ethernet Interface: $E"
$ECHO "User name: $U"
if [ "$D" = "no" ] ; then
$ECHO "Activate-on-demand: No"
else
$ECHO "Activate-on-demand: Yes; idle timeout = $D seconds"
fi
if [ "$DNS1" != "" ] ; then
if [ "$DNS1" = "server" ] ; then
$ECHO "DNS addresses: Supplied by ISP's server"
else
$ECHO "Primary DNS: $DNS1"
if [ "$DNS2" != "" ] ; then
$ECHO "Secondary DNS: $DNS2"
fi
fi
else
$ECHO "DNS: Do not adjust"
fi
$ECHO "Firewalling: $FIREWALL"
$ECHO ""
while [ true ] ; do
$ECHO -n '>>> Accept these settings and adjust configuration files (y/n)? '
read ANS
case "ANS" in
Y|y|yes|Yes|oui|Oui)
ANS=y
;;
N|n|no|No|non|Non)
ANS=n
;;
esac
if [ "$ANS" = "y" -o "$ANS" = "n" ] ; then
break
fi
done
if [ "$ANS" = "y" ] ; then
break
fi
done
# Adjust configuration files. First to $CONFIG
$ECHO "Adjusting $CONFIG"
copy $CONFIG $CONFIG-bak
if [ "$DNS1" = "server" ] ; then
DNSTYPE=SERVER
DNS1=""
USEPEERDNS=yes
else
USEPEERDNS=no
if [ "$DNS1" = "" ] ; then
DNSTYPE=NOCHANGE
else
DNSTYPE=SPECIFY
fi
fi
# Where is pppd likely to put its pid?
if [ -d /var/run ] ; then
VARRUN=/var/run
else
VARRUN=/etc/ppp
fi
# Some #$(*& ISP's use a slash in the user name...
sed -e "s&^USER=.*&USER='$U'&" \
-e "s&^ETH=.*Ð='$E'&" \
-e "s&^PIDFILE=.*&PIDFILE=\"$VARRUN/\$CF_BASE-adsl.pid\"&" \
-e "s/^FIREWALL=.*/FIREWALL=$FIREWALL/" \
-e "s/^DEMAND=.*/DEMAND=$D/" \
-e "s/^DNSTYPE=.*/DNSTYPE=$DNSTYPE/" \
-e "s/^DNS1=.*/DNS1=$DNS1/" \
-e "s/^DNS2=.*/DNS2=$DNS2/" \
-e "s/^USEPEERDNS=.*/USEPEERDNS=$USEPEERDNS/" \
< $CONFIG-bak > $CONFIG
if [ $? != 0 ] ; then
$ECHO "** Error modifying $CONFIG"
$ECHO "** Quitting"
exit 1
fi
if [ "$DNS1" != "" ] ; then
if [ "$DNS1" != "server" ] ; then
$ECHO "Adjusting /etc/resolv.conf"
if [ -r /etc/resolv.conf ] ; then
grep -s "MADE-BY-RP-PPPOE" /etc/resolv.conf > /dev/null 2>&1
if [ "$?" != 0 ] ; then
$ECHO " (But first backing it up to /etc/resolv.conf-bak)"
copy /etc/resolv.conf /etc/resolv.conf-bak
fi
fi
$ECHO "# MADE-BY-RP-PPPOE" > /etc/resolv.conf
$ECHO "nameserver $DNS1" >> /etc/resolv.conf
if [ "$DNS2" != "" ] ; then
$ECHO "nameserver $DNS2" >> /etc/resolv.conf
fi
fi
fi
$ECHO "Adjusting /etc/ppp/pap-secrets and /etc/ppp/chap-secrets"
if [ -r /etc/ppp/pap-secrets ] ; then
$ECHO " (But first backing it up to /etc/ppp/pap-secrets-bak)"
copy /etc/ppp/pap-secrets /etc/ppp/pap-secrets-bak
else
cp /dev/null /etc/ppp/pap-secrets-bak
fi
if [ -r /etc/ppp/chap-secrets ] ; then
$ECHO " (But first backing it up to /etc/ppp/chap-secrets-bak)"
copy /etc/ppp/chap-secrets /etc/ppp/chap-secrets-bak
else
cp /dev/null /etc/ppp/chap-secrets-bak
fi
egrep -v "^$U|^\"$U\"" /etc/ppp/pap-secrets-bak > /etc/ppp/pap-secrets
$ECHO "\"$U\" * \"$PWD1\"" >> /etc/ppp/pap-secrets
egrep -v "^$U|^\"$U\"" /etc/ppp/chap-secrets-bak > /etc/ppp/chap-secrets
$ECHO "\"$U\" * \"$PWD1\"" >> /etc/ppp/chap-secrets
$ECHO ""
$ECHO ""
$ECHO ""
$ECHO "Congratulations, it should be all set up!"
$ECHO ""
$ECHO "Type 'adsl-start' to bring up your ADSL link and 'adsl-stop' to bring"
$ECHO "it down. Type 'adsl-status' to see the link status."
exit 0
|
