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#!/bin/sh
#******************************************************************
#ident /etc/netenv/netenv_setup Time-stamp: <03/03/31 08:47:21 bav>
#******************************************************************
# Gerd Bavendiek bav@epost.de 03-03-11
#
# If there is a variable NETENV_SCRIPT pointing to this executable
# file, netenv will source this script during boot.
#
# This is an Debian-only example. It creates an
# /etc/network/interfaces in a hopefully safe manner.
# This way non PCMCIA-NIC-users can use netenv on Debian without
# further configuration steps.
#------------------------------------------------------------------
print_action()
{
printf "netenv: %s ... " "$*"
}
print_status()
{
if [ $? -eq 0 ]; then
echo done
else
echo failed
fi
}
if ! grep Debian /etc/issue >/dev/null 2>&1; then
print_action Doing nothing, as this is obviously no Debian
echo
exit 0
fi
# Save /etc/network/interfaces if it has not been created by netenv
if grep netenv /etc/network/interfaces >/dev/null 2>&1; then
cp -p /etc/network/interfaces /etc/network/interfaces.pre-netenv
print_action /etc/network/interfaces was backuped as /etc/network/interfaces.pre-netenv
fi
print_action creating new /etc/network/interfaces
(
if [ -z "$NETENV_IFACE" ]; then
NETENV_IFACE=eth0
fi
echo "# /etc/network/interfaces autogenerated by netenv "`date`
echo "# old /etc/network/interfaces backup as /etc/network/interfaces.pre-netenv"
echo auto lo
echo iface lo inet loopback
echo auto $NETENV_IFACE
if [ "$BOOTPROTO" = "dhcp" ]; then
echo iface $NETENV_IFACE inet dhcp
else
echo iface $NETENV_IFACE inet static
echo -e "\taddress $IPADDR"
echo -e "\tnetmask $NETMASK"
echo -e "\tnetwork $NETWORK"
echo -e "\tbroadcast $BROADCAST"
echo -e "\tgateway $GATEWAY"
fi
if [ ! -z "$UP" ]; then echo -e "\tup $UP"; fi
if [ ! -z "$DOWN" ]; then echo -e "\tdown $DOWN"; fi
if [ ! -z "$WIRELESS_ESSID" ]; then echo -e "\twireless-essid $WIRELESS_ESSID"; fi
if [ ! -z "$WIRELESS_NWID" ]; then echo -e "\twireless-nwid $WIRELESS_NWID"; fi
if [ ! -z "$WIRELESS_FREQ" ]; then echo -e "\twireless-freq $WIRELESS_FREQ"; fi
if [ ! -z "$WIRELESS_CHANNEL" ]; then echo -e "\twireless-channel $WIRELESS_CHANNEL"; fi
if [ ! -z "$WIRELESS_SENS" ]; then echo -e "\twireless-sens $WIRELESS_SENS"; fi
if [ ! -z "$WIRELESS_MODE" ]; then echo -e "\twireless-mode $WIRELESS_MODE"; fi
if [ ! -z "$WIRELESS_AP" ]; then echo -e "\twireless-ap $WIRELESS_AP"; fi
if [ ! -z "$WIRELESS_NICK" ]; then echo -e "\twireless-nick $WIRELESS_NICK"; fi
if [ ! -z "$WIRELESS_RATE" ]; then echo -e "\twireless-rate $WIRELESS_RATE"; fi
if [ ! -z "$WIRELESS_RTS" ]; then echo -e "\twireless-rts $WIRELESS_RTS"; fi
if [ ! -z "$WIRELESS_FRAG" ]; then echo -e "\twireless-frag $WIRELESS_FRAG"; fi
if [ ! -z "$WIRELESS_TXPOWER" ]; then echo -e "\twireless-txpower $WIRELESS_TXPOWER"; fi
if [ ! -z "$WIRELESS_ENC" ]; then echo -e "\twireless-enc $WIRELESS_ENC"; fi
if [ ! -z "$WIRELESS_KEY" ]; then echo -e "\twireless-key $WIRELESS_KEY"; fi
if [ ! -z "$WIRELESS_KEYMODE" ]; then echo -e "\twireless-keymode $WIRELESS_KEYMODE"; fi
if [ ! -z "$WIRELESS_POWER" ]; then echo -e "\twireless-power $WIRELESS_POWER"; fi
if [ ! -z "$WIRELESS_RETRY" ]; then echo -e "\twireless-retry $WIRELESS_RETRY"; fi
) > /etc/network/interfaces
print_status done
#--- Set up /etc/resolv.conf ----------------------------------
if [ ! -z "$DNS_1" ]; then
rm -f /etc/resolv.conf
(
echo "# resolv.conf autogenerated by netenv "`date`
if [ ! -z "$DOMAIN" ]; then echo domain $DOMAIN; fi
if [ ! -z "$SEARCH" ]; then echo search $SEARCH; fi
echo nameserver $DNS_1
if [ ! -z "$DNS_2" ]; then echo nameserver $DNS_2; fi
if [ ! -z "$DNS_3" ]; then echo nameserver $DNS_3; fi
) > /etc/resolv.conf.netenv
chmod 644 /etc/resolv.conf.netenv
print_action setting up new /etc/resolv.conf
ln -s /etc/resolv.conf.netenv /etc/resolv.conf
print_status
fi
#--- Edit /etc/hosts -------------------------------------------
NETENV_HOSTS_FILE=/etc/netenv/$(echo $1 |cut -d_ -f1)-hosts
if [ -r $NETENV_HOSTS_FILE ]; then
export NETENV_HOST_ENTRIES="$(cat $NETENV_HOSTS_FILE |tr '\n' ':')"
fi
if [ "$BOOTPROTO" = "dhcp" ]; then
export NETENV_HOST_ENTRIES="127.0.0.1 $NODE:$NETENV_HOST_ENTRIES"
else
if [ ! -z "$DOMAIN" ]; then
NETENV_DOMAIN=$DOMAIN
elif [ ! -z "$SEARCH" ]; then
NETENV_DOMAIN=$SEARCH
fi
if [ -z "$NETENV_DOMAIN" ]; then
export NETENV_HOST_ENTRIES="$IPADDR $NODE:$NETENV_HOST_ENTRIES"
else
export NETENV_HOST_ENTRIES="$IPADDR $NODE.$NETENV_DOMAIN $NODE:$NETENV_HOST_ENTRIES"
fi
fi
if [ -n "$NETENV_HOST_ENTRIES" ]; then
if egrep '^# netenv hosts begin$' /etc/hosts > /dev/null 2>&1; then
(
awk 'NR==1,/^# netenv hosts begin$/' /etc/hosts
echo $NETENV_HOST_ENTRIES | awk -F':' '{ for ( j=1; j<=NF; j++ ) print $j }'
awk '/^# netenv hosts end$/,/*/' /etc/hosts
) > /etc/hosts.netenv
print_action modifying /etc/hosts
mv -f /etc/hosts.netenv /etc/hosts
chmod 644 /etc/hosts
print_status
fi
else
if egrep '^# netenv hosts begin$' /etc/hosts > /dev/null 2>&1; then
(
awk 'NR==1,/^# netenv hosts begin$/' /etc/hosts
awk '/^# netenv hosts end$/,/*/' /etc/hosts
) > /etc/hosts.netenv
print_action cleaning up /etc/hosts
mv -f /etc/hosts.netenv /etc/hosts
chmod 644 /etc/hosts
print_status
fi
fi
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