144 lines
4.1 KiB
Bash
144 lines
4.1 KiB
Bash
#!/bin/sh -
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#
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# $NetBSD: netstart,v 1.34 1997/05/12 11:26:10 lukem Exp $
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# from: @(#)netstart 8.1 (Berkeley) 7/23/93
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if [ -f /etc/rc.conf ]; then
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. /etc/rc.conf
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fi
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# If $hostname is set, use it for my symbolic name, otherwise use /etc/myname
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if [ -z "$hostname" ]; then
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hostname=`cat /etc/myname`
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fi
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echo "hostname: $hostname"
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hostname $hostname
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# Check $domainname first, then /etc/defaultdomain, for domain name
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if [ -z "$domainname" -a -f /etc/defaultdomain ]; then
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domainname=`cat /etc/defaultdomain`
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fi
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if [ -n "$domainname" ]; then
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echo "domainname: $domainname"
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domainname $domainname
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fi
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# enable, flush and install packet filter rules before configuring interfaces.
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if [ "$ipfilter" != NO ] && [ -f /etc/ipf.conf ]; then
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echo 'installing packet filter rules ... '
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ipf -E -Fa -f /etc/ipf.conf
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fi
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# Configure all of the network interfaces listed in $net_interfaces;
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# if $net_interfaces is DEFAULT, grab all interfaces from ifconfig.
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# In the following, "xxN" stands in for interface names, like "le0".
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# For any interfaces that has an $ifconfig_xxN variable associated,
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# we do "ifconfig xxN $ifconfig_xxN".
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# If there is no such variable, we take the contents of the file
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# /etc/ifconfig.xxN, and run "ifconfig xxN" repeatedly, using each
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# line of the file as the arguments for a seperate "ifconfig" invocation.
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#
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# In order to configure an interface reasonably, you at the very least
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# need to specify "[addr_family] [hostname]" (as in "inet my.domain.org"),
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# and probably a netmask (as in "netmask 0xffffffe0"). You will
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# frequently need to specify a media type, as in "media UTP", for
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# interface cards with multiple media connections that do not autoconfigure.
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# see the ifconfig manual page for details.
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if [ "$net_interfaces" != NO ]; then
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if [ "$net_interfaces" = DEFAULT ]; then
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tmp="`ifconfig -l`"
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else
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tmp="$net_interfaces"
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fi
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echo -n 'configuring network interfaces:'
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for int in $tmp; do
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eval `echo 'args=$ifconfig_'$int`
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if [ -n "$args" ]; then
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echo -n " $int"
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ifconfig $int $args
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elif [ -f /etc/ifconfig.$int ]; then
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echo -n " $int"
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(while read args; do
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ifconfig $int $args
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done) < /etc/ifconfig.$int
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elif [ "$net_interfaces" != DEFAULT ]; then
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echo
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echo -n "/etc/ifconfig.$int missing"
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echo -n "& ifconfig_$int not set"
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echo "; interface $int can't be configured"
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continue
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fi
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if [ "$int" = "lo0" ]; then
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configured_lo0=yes
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fi
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configured_interfaces="$configured_interfaces $int"
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done
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echo '.'
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fi
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# set the address for the loopback interface if it's not configured
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if [ $configured_lo0 != "yes" ]; then
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ifconfig lo0 inet localhost
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fi
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# use loopback, not the wire
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route add $hostname localhost
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# Check $defaultroute, then /etc/mygate, for the name of my gateway host.
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# That name must be in /etc/hosts.
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if [ -z "$defaultroute" -a -f /etc/mygate ]; then
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defaultroute=`cat /etc/mygate`
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fi
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if [ -n "$defaultroute" ]; then
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route add default $defaultroute
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fi
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# Check if each configured interface xxN has an $ifaliases_xxN variable
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# associated, then configure additional IP addresses for that interface.
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# The variable contains a list of "address netmask" pairs, with "netmask"
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# set to "-" if the interface default netmask is to be used.
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#
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if [ -n "$configured_interfaces" ]; then
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echo 'adding interface aliases:';
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fi
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for int in $configured_interfaces; do
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eval `echo 'args=$ifaliases_'$int`
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if [ -n "$args" ]; then
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set -- $args
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while [ $# -ge 2 ]; do
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addr=$1 ; net=$2 ; shift 2
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if [ "$net" = "-" ]; then
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ifconfig $int inet alias $addr
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else
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ifconfig $int inet alias $addr netmask $net
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fi
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# use loopback, not the wire
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route add $addr localhost
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done
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fi
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done
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# /etc/ifaliases, if it exists, contains the names of additional IP
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# addresses for each interface. It is formatted as a series of lines
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# that contain
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# address interface netmask
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if [ -f /etc/ifaliases ]; then
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echo 'adding interface aliases:';
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(
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while read addr int net; do
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if [ -z "$net" ]; then
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ifconfig $int inet alias $addr
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else
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ifconfig $int inet alias $addr netmask $net
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fi
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# use loopback, not the wire
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route add $addr localhost
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done
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) < /etc/ifaliases
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fi
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if [ -s /etc/netstart.local ]; then
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. /etc/netstart.local
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fi
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