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#!/bin/sh -
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#
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# $OpenBSD: netstart,v 1.30 1997/10/14 20:34:55 deraadt Exp $
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# /etc/myname contains my symbolic name
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#
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hostname=`cat /etc/myname`
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hostname $hostname
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if [ -f /etc/defaultdomain ]; then
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domainname `cat /etc/defaultdomain`
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fi
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# pick up option configuration
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. /etc/rc.conf
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# Configure the IP filter before configuring network interfaces
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#
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if [ X"${ipfilter}" = X"YES" -a -f "${ipfilter_rules}" ]; then
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echo 'configuring IP filter'
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ipf -Fa -f ${ipfilter_rules} -E
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else
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ipfilter=NO
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fi
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# Configure NAT before configuring network interfaces
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#
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if [ X"${nat}" = X"YES" -a -f "${nat_rules}" ]; then
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echo 'configuring NAT'
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ipnat -CF -f ${nat_rules}
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else
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nat=NO
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fi
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# set the address for the loopback interface
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ifconfig lo0 inet localhost
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# use loopback, not the wire
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route add -host $hostname localhost
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route add -net 127 127.0.0.1 -reject
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# configure all of the non-loopback interfaces which we know about.
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# do this by reading /etc/hostname.* files, where * is the name
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# of a given interface.
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#
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# these files are formatted like the following, but with no # at the
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# beginning of the line
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#
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# addr_family hostname netmask broadcast_addr options
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# dest dest_addr
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#
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# addr_family is the address family of the interface, generally inet
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# hostname is the host name that belongs to the interface, in /etc/hosts.
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# netmask is the network mask for the interface.
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# broadcast_addr is the broadcast address for the interface
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# options are misc. options to ifconfig for the interface.
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#
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# dest is simply the string "dest" (no quotes, though) if the interface
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# has a "destination" (i.e. it's a point-to-point link, like SLIP).
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# dest_addr is the hostname of the other end of the link, in /etc/hosts
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#
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# the only required contents of the file are the addr_family field
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# and the hostname.
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(
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tmp="$IFS"
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IFS="$IFS."
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set -- `echo /etc/hostname*`
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IFS=$tmp
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unset tmp
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while [ $# -ge 2 ] ; do
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shift # get rid of "hostname"
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(
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read af name mask bcaddr extras
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read dt dtaddr
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if [ ! -n "$name" ]; then
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echo "/etc/hostname.$1: invalid network configuration file"
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exit
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fi
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cmd="ifconfig $1 $af $name "
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if [ "${dt}" = "dest" ]; then cmd="$cmd $dtaddr"; fi
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if [ -n "$mask" ]; then cmd="$cmd netmask $mask"; fi
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if [ -n "$bcaddr" -a "X$bcaddr" != "XNONE" ]; then
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cmd="$cmd broadcast $bcaddr";
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fi
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cmd="$cmd $extras"
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$cmd
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) < /etc/hostname.$1
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shift
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done
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)
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# /etc/mygate, if it exists, contains the name of my gateway host
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# that name must be in /etc/hosts.
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if [ -f /etc/mygate ]; then
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route add -host default `cat /etc/mygate`
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fi
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# default multicast route
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route add -net 224.0.0.0 -interface $hostname
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